| Flutter Impeller |

Namespaces | Classes | Typedefs | Enumerations | Functions | Variables
impeller Namespace Reference

## Namespaces
| compiler
| egl
| scene
| skia_conversions
| testing

## Classes
class | AiksContext
class | AiksInspector
class | AiksPlayground
class | AllocatedTextureSourceVK
class | Allocation
class | Allocator
| An object that allocates device memory. More...
class | AllocatorGLES
class | AllocatorMTL
class | AllocatorVK
struct | AllocatorVMATraits
class | AnonymousContents
class | Archivable
| Instances of `Archivable`s can be read from and written to a persistent archive. More...
class | Archive
class | ArchiveClassRegistration
class | ArchiveDatabase
| A handle to the underlying database connection for an archive. More...
struct | ArchiveDef
class | ArchiveLocation
class | ArchiveStatement
| Represents a read/write query to an archive database. Statements are expensive to create and must be cached for as long as possible. More...
class | ArchiveTransaction
| All writes made to the archive within a transaction that is not marked as ready for commit will be rolled back with the transaction ends. More...
class | ArchiveVector
struct | AtlasBlenderKey
class | AtlasColorContents
class | AtlasContents
class | AtlasTextureContents
struct | Attachment
struct | AutoErrorCheck
class | BackendCast
class | BackgroundCommandPoolVK
class | BackgroundDescriptorPoolVK
struct | BarrierVK
| Defines an operations and memory access barrier on a resource. More...
struct | Bindings
class | BitmapSTB
class | BlendColorFilter
class | BlendFilterContents
struct | BlitCommand
struct | BlitCopyBufferToTextureCommand
struct | BlitCopyBufferToTextureCommandMTL
struct | BlitCopyBufferToTextureCommandVK
struct | BlitCopyTextureToBufferCommand
struct | BlitCopyTextureToBufferCommandGLES
struct | BlitCopyTextureToBufferCommandMTL
struct | BlitCopyTextureToBufferCommandVK
struct | BlitCopyTextureToTextureCommand
struct | BlitCopyTextureToTextureCommandGLES
struct | BlitCopyTextureToTextureCommandMTL
struct | BlitCopyTextureToTextureCommandVK
struct | BlitEncodeGLES
| Mixin for dispatching GLES commands. More...
struct | BlitEncodeMTL
| Mixin for dispatching Metal commands. More...
struct | BlitEncodeVK
| Mixin for dispatching Vulkan commands. More...
struct | BlitGenerateMipmapCommand
struct | BlitGenerateMipmapCommandGLES
struct | BlitGenerateMipmapCommandMTL
struct | BlitGenerateMipmapCommandVK
class | BlitPass
| Blit passes encode blit into the underlying command buffer. More...
class | BlitPassGLES
class | BlitPassMTL
class | BlitPassVK
class | BlurImageFilter
struct | BlurParameters
class | BorderMaskBlurFilterContents
class | Buffer
struct | BufferAndUniformSlot
| combines the buffer resource and its uniform slot information. More...
class | BufferBindingsGLES
| Sets up stage bindings for single draw call in the OpenGLES backend. More...
struct | BufferView
struct | BufferVMA
struct | BufferVMATraits
class | Canvas
struct | CanvasStackEntry
class | Capabilities
class | CapabilitiesBuilder
class | CapabilitiesGLES
| The Vulkan layers and extensions wrangler. More...
class | CapabilitiesVK
| The Vulkan layers and extensions wrangler. More...
class | Capture
class | CaptureContext
struct | CaptureCursorListElement
struct | CaptureElement
class | CapturePlaybackList
struct | CaptureProcTable
struct | CaptureProperty
| A capturable property type. More...
class | CheckerboardContents
class | CircleGeometry
class | ClipContents
class | ClipRestoreContents
struct | Color
struct | ColorAttachment
struct | ColorAttachmentDescriptor
| Describe the color attachment that will be used with this pipeline. More...
class | ColorFilter
class | ColorFilterContents
struct | ColorHSB
class | ColorImageFilter
struct | ColorMatrix
class | ColorMatrixFilterContents
class | ColorSource
class | ColorSourceContents
struct | Command
| An object used to specify work to the GPU along with references to resources the GPU will used when doing said work. More...
class | CommandBuffer
| A collection of encoded commands to be submitted to the GPU for execution. A command buffer is obtained from a graphics `Context`. More...
class | CommandBufferGLES
class | CommandBufferMTL
class | CommandBufferVK
class | CommandEncoderFactoryVK
class | CommandEncoderVK
class | CommandPoolRecyclerVK
| Creates and manages the lifecycle of |vk::CommandPool| objects. More...
class | CommandPoolVK
| Manages the lifecycle of a single |vk::CommandPool|. More...
class | Comparable
class | ComparableBase
struct | ComparableEqual
struct | ComparableHash
class | ComposedColorFilter
| Applies color filters as f(g(x)), where x is the input color. More...
class | ComposeImageFilter
class | CompressedImage
class | CompressedImageSkia
struct | ComputeCommand
| An object used to specify compute work to the GPU along with references to resources the GPU will used when doing said work. More...
class | ComputePass
| Compute passes encode compute shader into the underlying command buffer. More...
struct | ComputePassBindingsCache
| Ensures that bindings on the pass are not redundantly set or updated. Avoids making the driver do additional checks and makes the frame insights during profiling and instrumentation not complain about the same. More...
class | ComputePassMTL
class | ComputePassVK
struct | ComputePipelineBuilder
| An optional (but highly recommended) utility for creating pipelines from reflected shader information. More...
class | ComputePipelineDescriptor
class | ComputePipelineMTL
class | ComputePipelineT
class | ComputePipelineVK
class | ComputePlaygroundTest
class | ComputeTessellator
| A utility that generates triangles of the specified fill type given a path. More...
class | ConditionVariable
| A condition variable exactly similar to the one in libcxx with two major differences: More...
class | ConicalGradientContents
class | ContentContext
struct | ContentContextOptions
class | Contents
class | ContentsFilterInput
class | Context
| To do anything rendering related with Impeller, you need a context. More...
class | ContextGLES
class | ContextMTL
class | ContextVK
struct | ContourComponent
class | CoverGeometry
| A geometry that implements "drawPaint" like behavior by covering the entire render pass area. More...
struct | CubicPathComponent
class | DebugReportVK
class | DecompressedImage
class | DefaultEntityPassDelegate
struct | Degrees
struct | DepthAttachment
struct | DepthAttachmentDescriptor
struct | DepthRange
class | DescriptionGLES
class | DescriptorPoolRecyclerVK
| Creates and manages the lifecycle of |vk::DescriptorPoolVK| objects. More...
class | DescriptorPoolVK
| A short-lived fixed-sized descriptor pool. Descriptors from this pool don't need to be freed individually. Instead, the pool must be collected after all the descriptors allocated from it are done being used. More...
struct | DescriptorSetLayout
class | DeviceBuffer
struct | DeviceBufferDescriptor
class | DeviceBufferGLES
class | DeviceBufferMTL
class | DeviceBufferVK
class | DeviceHolder
class | DilateImageFilter
class | DirectionalGaussianBlurFilterContents
class | DirectionalMorphologyFilterContents
class | DlDispatcher
class | DlImageImpeller
class | DlPlayground
struct | EGLImageKHRWithDisplay
struct | EGLImageKHRWithDisplayTraits
struct | EGLImageWithDisplay
struct | EGLImageWithDisplayTraits
class | EllipseGeometry
class | Entity
class | EntityPass
class | EntityPassDelegate
class | EntityPassTarget
class | EntityPlayground
class | ErodeImageFilter
class | FenceWaiterVK
class | FillPathGeometry
| A geometry that is created from a filled path object. More...
class | FilterContents
class | FilterContentsFilterInput
class | FilterInput
class | Font
| Describes a typeface along with any modifications to its intrinsic properties. More...
class | FontGlyphAtlas
| An object that can look up glyph locations within the GlyphAtlas for a particular typeface. More...
struct | FontGlyphPair
| A font along with a glyph in that font rendered at a particular scale. More...
class | FramebufferBlendContents
struct | FrameSynchronizer
class | GaussianBlurFilterContents
class | Geometry
struct | GeometryResult
struct | GLProc
struct | GLTexture
struct | GLTextureTraits
struct | Glyph
| The glyph index in the typeface. More...
class | GlyphAtlas
| A texture containing the bitmap representation of glyphs in different fonts along with the ability to query the location of specific font glyphs within the texture. More...
class | GlyphAtlasContext
| A container for caching a glyph atlas across frames. More...
class | GlyphAtlasContextSkia
| A container for caching a glyph atlas across frames. More...
class | GlyphAtlasContextSTB
class | GoldenPlaygroundTest
class | GPUProbe
class | GPUTracerGLES
| Trace GPU execution times using GL_EXT_disjoint_timer_query on GLES. More...
class | GPUTracerMTL
| Approximate the GPU frame time by computing a difference between the smallest GPUStartTime and largest GPUEndTime for all command buffers submitted in a frame workload. More...
class | GPUTracerVK
| A class that uses timestamp queries to record the approximate GPU execution time. More...
struct | GradientData
struct | Half
| A storage only class for half precision floating point. More...
struct | HalfVector2
| A storage only class for half precision floating point vector 2. More...
struct | HalfVector3
| A storage only class for half precision floating point vector 3. More...
struct | HalfVector4
| A storage only class for half precision floating point vector 4. More...
struct | HandleGLES
class | HostBuffer
class | Image
class | ImageFilter
class | ImageFilterVisitor
struct | ImageVMA
struct | ImageVMATraits
class | InlinePassContext
struct | IPoint16
class | LazyGlyphAtlas
class | LinearGradientContents
struct | LinearPathComponent
class | LinearToSrgbColorFilter
class | LinearToSrgbFilterContents
class | LineGeometry
class | LocalMatrixFilterContents
class | LocalMatrixImageFilter
class | Lock
struct | Matrix
| A 4x4 matrix using column-major storage. More...
class | MatrixColorFilter
struct | MatrixDecomposition
class | MatrixFilterContents
class | MatrixImageFilter
struct | MixedOp_
class | MultiArchShaderArchive
class | MultiArchShaderArchiveWriter
class | NinePatchConverter
class | OpacityPeepholePassDelegate
struct | Padded
| Struct used for padding uniform buffer array elements. More...
struct | Padding
struct | Paint
class | PaintPassDelegate
class | PassBindingsCache
| Ensures that bindings on the pass are not redundantly set or updated. Avoids making the driver do additional checks and makes the frame insights during profiling and instrumentation not complain about the same. More...
class | Path
| Paths are lightweight objects that describe a collection of linear, quadratic, or cubic segments. These segments may be broken up by move commands, which are effectively linear commands that pick up the pen rather than continuing to draw. More...
class | PathBuilder
struct | PathComponentEndDirectionVisitor
struct | PathComponentStartDirectionVisitor
struct | Picture
class | PictureRecorder
class | Pipeline
| Describes the fixed function and programmable aspects of rendering and compute operations performed by commands submitted to the GPU via a command buffer. More...
struct | PipelineBuilder
| An optional (but highly recommended) utility for creating pipelines from reflected shader information. More...
class | PipelineCacheVK
class | PipelineDescriptor
struct | PipelineFuture
class | PipelineGLES
class | PipelineLibrary
class | PipelineLibraryGLES
class | PipelineLibraryMTL
class | PipelineLibraryVK
class | PipelineMTL
class | PipelineVK
class | PlaceholderFilterInput
class | Playground
class | PlaygroundImpl
class | PlaygroundImplGLES
class | PlaygroundImplMTL
class | PlaygroundImplVK
struct | PlaygroundSwitches
class | PlaygroundTest
class | PointFieldGeometry
class | Pool
| A thread-safe pool with a limited byte size. More...
struct | PoolVMA
struct | PoolVMATraits
class | ProcTableGLES
struct | QuadraticPathComponent
struct | Quaternion
struct | QueueIndexVK
struct | QueuesVK
| The collection of queues used by the context. The queues may all be the same. More...
class | QueueVK
| A thread safe object that can be used to access device queues. If multiple objects are created with the same underlying queue, then the external synchronization guarantees of Vulkan queues cannot be met. So care must be taken the same device queue doesn't form the basis of multiple `QueueVK`s. More...
class | RadialGradientContents
struct | Radians
struct | Radius
| For convolution filters, the "radius" is the size of the convolution kernel to use on the local space pixel grid of the filter input. For Gaussian blur kernels, this unit has a linear relationship with `Sigma`. See `kKernelRadiusPerSigma` for details on how this relationship works. More...
struct | Range
class | ReactorGLES
| The reactor attempts to make thread-safe usage of OpenGL ES easier to reason about. More...
class | ReaderLock
class | RectanglePacker
| Packs rectangles into a specified area without rotating them. More...
class | RectGeometry
class | Renderer
class | RenderPass
| Render passes encode render commands directed as one specific render target into an underlying command buffer. More...
struct | RenderPassData
| Encapsulates data that will be needed in the reactor for the encoding of commands for this render pass. More...
class | RenderPassGLES
class | RenderPassMTL
class | RenderPassVK
class | RenderPipelineT
class | RenderTarget
class | RenderTargetAllocator
| a wrapper around the impeller [Allocator] instance that can be used to provide caching of allocated render target textures. More...
class | RenderTargetCache
| An implementation of the [RenderTargetAllocator] that caches all allocated texture data for one frame. More...
struct | Resource
struct | ResourceBinder
| An interface for binding resources. This is implemented by |Command| and |ComputeCommand| to make GPU resources available to a given command's pipeline. More...
class | ResourceManagerVK
| A resource manager controls how resources are allocated and reclaimed. More...
class | ResourceVK
| A resource that may be reclaimed by a |ResourceManagerVK|. More...
class | ResourceVKT
| An internal type that is used to move a resource reference. More...
class | RoundRectGeometry
class | RuntimeEffectContents
class | RuntimeStage
class | RuntimeStagePlayground
struct | RuntimeUniformDescription
struct | RuntimeUniformDimensions
struct | SampledImageSlot
| Metadata required to bind a combined texture and sampler. More...
class | Sampler
struct | SamplerDescriptor
class | SamplerGLES
class | SamplerLibrary
class | SamplerLibraryGLES
class | SamplerLibraryMTL
class | SamplerLibraryVK
class | SamplerMTL
class | SamplerVK
struct | ScaledFont
| A font and a scale. Used as a key that represents a typeface within a glyph atlas. More...
class | SceneContents
struct | ScopedValidationDisable
class | ShaderArchive
class | ShaderArchiveWriter
class | ShaderFunction
class | ShaderFunctionGLES
class | ShaderFunctionMTL
class | ShaderFunctionVK
struct | ShaderKey
class | ShaderLibrary
class | ShaderLibraryGLES
class | ShaderLibraryMTL
class | ShaderLibraryVK
struct | ShaderMetadata
struct | ShaderStageBufferLayout
struct | ShaderStageIOSlot
struct | ShaderStructMemberMetadata
struct | ShaderUniformSlot
| Metadata required to bind a buffer. More...
class | SharedObjectVK
class | SharedObjectVKT
struct | Shear
struct | Sigma
| In filters that use Gaussian distributions, "sigma" is a size of one standard deviation in terms of the local space pixel grid of the filter input. In other words, this determines how wide the distribution stretches. More...
class | SkylineRectanglePacker
struct | Snapshot
| Represents a texture and its intended draw transform/sampler configuration. More...
class | SolidColorContents
class | SolidRRectBlurContents
| Draws a fast solid color blur of an rounded rectangle. Only supports RRects with fully symmetrical radii. Also produces correct results for rectangles (corner_radius=0) and circles (corner_radius=width/2=height/2). More...
class | SrgbToLinearColorFilter
class | SrgbToLinearFilterContents
class | StandardCapabilities
struct | StencilAttachment
struct | StencilAttachmentDescriptor
struct | StopData
class | StrokePathGeometry
| A geometry that is created from a stroked path object. More...
struct | SubAtlasResult
class | Surface
class | SurfaceContextVK
class | SurfaceGLES
class | SurfaceMTL
class | SurfaceVK
class | SwapchainImageVK
class | SwapchainImplVK
| An instance of a swapchain that does NOT adapt to going out of date with the underlying surface. Errors will be indicated when the next drawable is acquired from this implementation of the swapchain. If the error is due the swapchain going out of date, the caller must recreate another instance by optionally stealing this implementations guts. More...
class | SwapchainVK
| A swapchain that adapts to the underlying surface going out of date. If the caller cannot acquire the next drawable, it is due to an unrecoverable error and the swapchain must be recreated with a new surface. More...
class | SweepGradientContents
class | Tessellator
| A utility that generates triangles of the specified fill type given a polyline. This happens on the CPU. More...
struct | TexImage2DData
class | TextContents
class | TextFrame
| Represents a collection of shaped text runs. More...
class | TextRun
| Represents a collection of positioned glyphs from a specific font. More...
class | Texture
struct | TextureAndSampler
| combines the texture, sampler and sampler slot information. More...
class | TextureContents
struct | TextureDescriptor
| A lightweight object that describes the attributes of a texture that can then used an allocator to create that texture. More...
class | TextureFilterInput
class | TextureGLES
class | TextureMTL
class | TextureSourceVK
class | TextureVK
class | TiledTextureContents
struct | TPoint
class | TraceSerializer
class | TrackedObjectsVK
struct | TRect
struct | Trig
| A structure to store the sine and cosine of an angle. More...
struct | TSize
class | Typeface
| A typeface, usually obtained from a font-file, on disk describes the intrinsic properties of the font. Typefaces are rarely used directly. Instead, font refer to typefaces along with any modifications applied to its intrinsic properties. More...
class | TypefaceSkia
class | TypefaceSTB
class | TypographerContext
| The graphics context necessary to render text. More...
class | TypographerContextSkia
class | TypographerContextSTB
struct | UniqueID
class | UniqueResourceVKT
| A unique handle to a resource which will be reclaimed by the specified resource manager. More...
class | ValidationLog
struct | Vector3
struct | Vector4
struct | Version
struct | VertexBuffer
class | VertexBufferBuilder
class | VertexDescriptor
| Describes the format and layout of vertices expected by the pipeline. While it is possible to construct these descriptors manually, it would be tedious to do so. These are usually constructed using shader information reflected using `impellerc`. The usage of this class is indirectly via `PipelineBuilder<VS, FS>`. More...
class | VertexDescriptorMTL
struct | Vertices
class | VerticesColorContents
class | VerticesContents
class | VerticesGeometry
| A geometry that is created from a vertices object. More...
class | VerticesUVContents
struct | Viewport
class | WaitSetEntry
class | WriterLock
class | YUVToRGBFilterContents

## Typedefs
using | CanvasType = Canvas
using | PrimaryKey = std::optional< int64_t >
using | MillisecondsF = std::chrono::duration< float, std::milli >
using | SecondsF = std::chrono::duration< float >
using | Clock = std::chrono::high_resolution_clock
using | TimePoint = std::chrono::time_point< std::chrono::high_resolution_clock >
using | TextureUsageMask = uint64_t
using | SamplerMap = std::unordered_map< SamplerDescriptor, std::shared_ptr< const Sampler >, ComparableHash< SamplerDescriptor >, ComparableEqual< SamplerDescriptor > >
using | LinearGradientFillPipeline = RenderPipelineT< GradientFillVertexShader, LinearGradientFillFragmentShader >
using | SolidFillPipeline = RenderPipelineT< SolidFillVertexShader, SolidFillFragmentShader >
using | RadialGradientFillPipeline = RenderPipelineT< GradientFillVertexShader, RadialGradientFillFragmentShader >
using | ConicalGradientFillPipeline = RenderPipelineT< GradientFillVertexShader, ConicalGradientFillFragmentShader >
using | SweepGradientFillPipeline = RenderPipelineT< GradientFillVertexShader, SweepGradientFillFragmentShader >
using | LinearGradientSSBOFillPipeline = RenderPipelineT< GradientFillVertexShader, LinearGradientSsboFillFragmentShader >
using | ConicalGradientSSBOFillPipeline = RenderPipelineT< GradientFillVertexShader, ConicalGradientSsboFillFragmentShader >
using | RadialGradientSSBOFillPipeline = RenderPipelineT< GradientFillVertexShader, RadialGradientSsboFillFragmentShader >
using | SweepGradientSSBOFillPipeline = RenderPipelineT< GradientFillVertexShader, SweepGradientSsboFillFragmentShader >
using | RRectBlurPipeline = RenderPipelineT< RrectBlurVertexShader, RrectBlurFragmentShader >
using | BlendPipeline = RenderPipelineT< BlendVertexShader, BlendFragmentShader >
using | TexturePipeline = RenderPipelineT< TextureFillVertexShader, TextureFillFragmentShader >
using | PositionUVPipeline = RenderPipelineT< TextureFillVertexShader, TiledTextureFillFragmentShader >
using | TiledTexturePipeline = RenderPipelineT< TextureFillVertexShader, TiledTextureFillFragmentShader >
using | GaussianBlurDecalPipeline = RenderPipelineT< GaussianBlurVertexShader, GaussianBlurNoalphaDecalFragmentShader >
using | GaussianBlurPipeline = RenderPipelineT< GaussianBlurVertexShader, GaussianBlurNoalphaNodecalFragmentShader >
using | KernelDecalPipeline = RenderPipelineT< GaussianBlurVertexShader, KernelDecalFragmentShader >
using | KernelPipeline = RenderPipelineT< GaussianBlurVertexShader, KernelNodecalFragmentShader >
using | BorderMaskBlurPipeline = RenderPipelineT< BorderMaskBlurVertexShader, BorderMaskBlurFragmentShader >
using | MorphologyFilterPipeline = RenderPipelineT< MorphologyFilterVertexShader, MorphologyFilterFragmentShader >
using | ColorMatrixColorFilterPipeline = RenderPipelineT< ColorMatrixColorFilterVertexShader, ColorMatrixColorFilterFragmentShader >
using | LinearToSrgbFilterPipeline = RenderPipelineT< LinearToSrgbFilterVertexShader, LinearToSrgbFilterFragmentShader >
using | SrgbToLinearFilterPipeline = RenderPipelineT< SrgbToLinearFilterVertexShader, SrgbToLinearFilterFragmentShader >
using | GlyphAtlasPipeline = RenderPipelineT< GlyphAtlasVertexShader, GlyphAtlasFragmentShader >
using | GlyphAtlasColorPipeline = RenderPipelineT< GlyphAtlasVertexShader, GlyphAtlasColorFragmentShader >
using | PorterDuffBlendPipeline = RenderPipelineT< PorterDuffBlendVertexShader, PorterDuffBlendFragmentShader >
using | ClipPipeline = RenderPipelineT< ClipVertexShader, ClipFragmentShader >
using | GeometryColorPipeline = RenderPipelineT< PositionColorVertexShader, VerticesFragmentShader >
using | YUVToRGBFilterPipeline = RenderPipelineT< YuvToRgbFilterVertexShader, YuvToRgbFilterFragmentShader >
using | BlendColorPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendColorBurnPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendColorDodgePipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendDarkenPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendDifferencePipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendExclusionPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendHardLightPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendHuePipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendLightenPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendLuminosityPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendMultiplyPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendOverlayPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendSaturationPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendScreenPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | BlendSoftLightPipeline = RenderPipelineT< AdvancedBlendVertexShader, AdvancedBlendFragmentShader >
using | FramebufferBlendColorPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendColorBurnPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendColorDodgePipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendDarkenPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendDifferencePipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendExclusionPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendHardLightPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendHuePipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendLightenPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendLuminosityPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendMultiplyPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendOverlayPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendSaturationPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendScreenPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | FramebufferBlendSoftLightPipeline = RenderPipelineT< FramebufferBlendVertexShader, FramebufferBlendFragmentShader >
using | PointsComputeShaderPipeline = ComputePipelineBuilder< PointsComputeShader >
| Geometry Pipelines. More...
using | UvComputeShaderPipeline = ComputePipelineBuilder< UvComputeShader >
using | PipelineProc = std::shared_ptr< Pipeline< PipelineDescriptor > >(ContentContext::*)(ContentContextOptions) const
using | GaussianBlurVertexShader = KernelPipeline::VertexShader
using | GaussianBlurFragmentShader = KernelPipeline::FragmentShader
using | PathComponentVariant = std::variant< std::monostate, const LinearPathComponent *, const QuadraticPathComponent *, const CubicPathComponent * >
using | Point = TPoint< Scalar >
using | IPoint = TPoint< int64_t >
using | IPoint32 = TPoint< int32_t >
using | UintPoint32 = TPoint< uint32_t >
using | Vector2 = Point
using | Quad = std::array< Point, 4 >
using | Rect = TRect< Scalar >
using | IRect = TRect< int64_t >
using | Scalar = float
using | Size = TSize< Scalar >
using | ISize = TSize< int64_t >
template<class F , class I >
using | MixedOp = typename MixedOp_< F, I >::type
using | Callback = std::function< void(MTLRenderPipelineDescriptor *)>
using | CommandPoolMap = std::unordered_map< uint64_t, std::shared_ptr< CommandPoolVK > >
using | DescriptorPoolAndSize = std::pair< vk::UniqueDescriptorPool, uint32_t >
using | WaitSet = std::vector< std::shared_ptr< WaitSetEntry > >
template<class T >
using | SharedHandleVK = std::shared_ptr< SharedObjectVKT< T > >
using | UniqueAllocatorVMA = fml::UniqueObject< VmaAllocator, AllocatorVMATraits >
using | UniquePoolVMA = fml::UniqueObject< PoolVMA, PoolVMATraits >
using | UniqueBufferVMA = fml::UniqueObject< BufferVMA, BufferVMATraits >
using | UniqueImageVMA = fml::UniqueObject< ImageVMA, ImageVMATraits >
using | BufferResource = Resource< BufferView >
using | TextureResource = Resource< std::shared_ptr< const Texture > >
using | PipelineMap = std::unordered_map< PipelineDescriptor, PipelineFuture< PipelineDescriptor >, ComparableHash< PipelineDescriptor >, ComparableEqual< PipelineDescriptor > >
using | ComputePipelineMap = std::unordered_map< ComputePipelineDescriptor, PipelineFuture< ComputePipelineDescriptor >, ComparableHash< ComputePipelineDescriptor >, ComparableEqual< ComputePipelineDescriptor > >
using | ShaderFunctionMap = std::unordered_map< ShaderKey, std::shared_ptr< const ShaderFunction >, ShaderKey::Hash, ShaderKey::Equal >
using | TessellatedVertexProc = Tessellator::TessellatedVertexProc
using | EllipticalVertexGenerator = Tessellator::EllipticalVertexGenerator
using | CTessellator = std::unique_ptr< TESStesselator, decltype(&DestroyTessellator)>
using | UniqueEGLImage = fml::UniqueObject< EGLImageWithDisplay, EGLImageWithDisplayTraits >
using | UniqueEGLImageKHR = fml::UniqueObject< EGLImageKHRWithDisplay, EGLImageKHRWithDisplayTraits >
using | UniqueGLTexture = fml::UniqueObject< GLTexture, GLTextureTraits >
using | FontGlyphMap = std::unordered_map< ScaledFont, std::unordered_set< Glyph > >

## Enumerations
enum | PointStyle { PointStyle::kRound, PointStyle::kSquare }
enum | CanvasRecorderOp : uint16_t { kNew, kSave, kSaveLayer, kRestore, kRestoreToCount, kResetTransform, kTransform, kConcat, kPreConcat, kTranslate, kScale2, kScale3, kSkew, kRotate, kDrawPath, kDrawPaint, kDrawRect, kDrawRRect, kDrawCircle, kDrawPoints, kDrawImage, kDrawImageRect, kClipPath, kClipRect, kClipRRect, kDrawPicture, kDrawTextFrame, kDrawVertices, kDrawAtlas }
enum | StorageMode { StorageMode::kHostVisible, StorageMode::kDevicePrivate, StorageMode::kDeviceTransient }
| Specified where the allocation resides and how it is used. More...
enum | PixelFormat : uint8_t { PixelFormat::kUnknown, PixelFormat::kA8UNormInt, PixelFormat::kR8UNormInt, PixelFormat::kR8G8UNormInt, PixelFormat::kR8G8B8A8UNormInt, PixelFormat::kR8G8B8A8UNormIntSRGB, PixelFormat::kB8G8R8A8UNormInt, PixelFormat::kB8G8R8A8UNormIntSRGB, PixelFormat::kR32G32B32A32Float, PixelFormat::kR16G16B16A16Float, PixelFormat::kB10G10R10XR, PixelFormat::kB10G10R10XRSRGB, PixelFormat::kB10G10R10A10XR, PixelFormat::kS8UInt, PixelFormat::kD24UnormS8Uint, PixelFormat::kD32FloatS8UInt }
| The Pixel formats supported by Impeller. The naming convention denotes the usage of the component, the bit width of that component, and then one or more qualifiers to its interpretation. More...
enum | BlendFactor { BlendFactor::kZero, BlendFactor::kOne, BlendFactor::kSourceColor, BlendFactor::kOneMinusSourceColor, BlendFactor::kSourceAlpha, BlendFactor::kOneMinusSourceAlpha, BlendFactor::kDestinationColor, BlendFactor::kOneMinusDestinationColor, BlendFactor::kDestinationAlpha, BlendFactor::kOneMinusDestinationAlpha, BlendFactor::kSourceAlphaSaturated, BlendFactor::kBlendColor, BlendFactor::kOneMinusBlendColor, BlendFactor::kBlendAlpha, BlendFactor::kOneMinusBlendAlpha }
enum | BlendOperation { BlendOperation::kAdd, BlendOperation::kSubtract, BlendOperation::kReverseSubtract }
enum | LoadAction { LoadAction::kDontCare, LoadAction::kLoad, LoadAction::kClear }
enum | StoreAction { StoreAction::kDontCare, StoreAction::kStore, StoreAction::kMultisampleResolve, StoreAction::kStoreAndMultisampleResolve }
enum | TextureType { TextureType::kTexture2D, TextureType::kTexture2DMultisample, TextureType::kTextureCube, TextureType::kTextureExternalOES }
enum | SampleCount : uint8_t { SampleCount::kCount1 = 1, SampleCount::kCount4 = 4 }
enum | TextureUsage : TextureUsageMask { TextureUsage::kUnknown = 0, TextureUsage::kShaderRead = 1 << 0, TextureUsage::kShaderWrite = 1 << 1, TextureUsage::kRenderTarget = 1 << 2 }
enum | TextureCoordinateSystem { TextureCoordinateSystem::kUploadFromHost, TextureCoordinateSystem::kRenderToTexture }
enum | CullMode { CullMode::kNone, CullMode::kFrontFace, CullMode::kBackFace }
enum | IndexType { IndexType::kUnknown, IndexType::k16bit, IndexType::k32bit, IndexType::kNone }
enum | PrimitiveType : uint8_t { PrimitiveType::kTriangle, PrimitiveType::kTriangleStrip, PrimitiveType::kLine, PrimitiveType::kLineStrip, PrimitiveType::kPoint }
| Decides how backend draws pixels based on input vertices. More...
enum | PolygonMode { PolygonMode::kFill, PolygonMode::kLine }
enum | MinMagFilter { MinMagFilter::kNearest, MinMagFilter::kLinear }
enum | MipFilter { MipFilter::kNearest, MipFilter::kLinear }
enum | SamplerAddressMode { SamplerAddressMode::kClampToEdge, SamplerAddressMode::kRepeat, SamplerAddressMode::kMirror, SamplerAddressMode::kDecal }
enum | ColorWriteMask : uint64_t { ColorWriteMask::kNone = 0, ColorWriteMask::kRed = 1 << 0, ColorWriteMask::kGreen = 1 << 1, ColorWriteMask::kBlue = 1 << 2, ColorWriteMask::kAlpha = 1 << 3, ColorWriteMask::kAll = kRed | kGreen | kBlue | kAlpha }
enum | CompareFunction : uint8_t { CompareFunction::kNever, CompareFunction::kAlways, CompareFunction::kLess, CompareFunction::kEqual, CompareFunction::kLessEqual, CompareFunction::kGreater, CompareFunction::kNotEqual, CompareFunction::kGreaterEqual }
enum | StencilOperation : uint8_t { StencilOperation::kKeep, StencilOperation::kZero, StencilOperation::kSetToReferenceValue, StencilOperation::kIncrementClamp, StencilOperation::kDecrementClamp, StencilOperation::kInvert, StencilOperation::kIncrementWrap, StencilOperation::kDecrementWrap }
enum | RuntimeStageBackend { RuntimeStageBackend::kSkSL, RuntimeStageBackend::kMetal, RuntimeStageBackend::kOpenGLES, RuntimeStageBackend::kVulkan }
enum | RuntimeUniformType { kBoolean, kSignedByte, kUnsignedByte, kSignedShort, kUnsignedShort, kSignedInt, kUnsignedInt, kSignedInt64, kUnsignedInt64, kHalfFloat, kFloat, kDouble, kSampledImage }
enum | RuntimeShaderStage { RuntimeShaderStage::kVertex, RuntimeShaderStage::kFragment, RuntimeShaderStage::kCompute }
enum | ShaderStage { ShaderStage::kUnknown, ShaderStage::kVertex, ShaderStage::kFragment, ShaderStage::kCompute }
enum | ShaderType { ShaderType::kUnknown, ShaderType::kVoid, ShaderType::kBoolean, ShaderType::kSignedByte, ShaderType::kUnsignedByte, ShaderType::kSignedShort, ShaderType::kUnsignedShort, ShaderType::kSignedInt, ShaderType::kUnsignedInt, ShaderType::kSignedInt64, ShaderType::kUnsignedInt64, ShaderType::kAtomicCounter, ShaderType::kHalfFloat, ShaderType::kFloat, ShaderType::kDouble, ShaderType::kStruct, ShaderType::kImage, ShaderType::kSampledImage, ShaderType::kSampler }
enum | DescriptorType { DescriptorType::kUniformBuffer, DescriptorType::kStorageBuffer, DescriptorType::kSampledImage, DescriptorType::kImage, DescriptorType::kSampler, DescriptorType::kInputAttachment }
enum | CompressionType { CompressionType::kLossless, CompressionType::kLossy }
| Additional compression to apply to a texture. This value is ignored on platforms which do not support it. More...
enum | BlendSelectValues { BlendSelectValues::kScreen = 0, BlendSelectValues::kOverlay, BlendSelectValues::kDarken, BlendSelectValues::kLighten, BlendSelectValues::kColorDodge, BlendSelectValues::kColorBurn, BlendSelectValues::kHardLight, BlendSelectValues::kSoftLight, BlendSelectValues::kDifference, BlendSelectValues::kExclusion, BlendSelectValues::kMultiply, BlendSelectValues::kHue, BlendSelectValues::kSaturation, kColor, BlendSelectValues::kLuminosity }
enum | GeometryVertexType { kPosition, kColor, kColor, kUV }
enum | YUVColorSpace { YUVColorSpace::kBT601LimitedRange, YUVColorSpace::kBT601FullRange }
enum | BlendMode : uint8_t { BlendMode::kClear = 0, BlendMode::kSource, BlendMode::kDestination, BlendMode::kSourceOver, BlendMode::kDestinationOver, BlendMode::kSourceIn, BlendMode::kDestinationIn, BlendMode::kSourceOut, BlendMode::kDestinationOut, BlendMode::kSourceATop, BlendMode::kDestinationATop, BlendMode::kXor, BlendMode::kPlus, BlendMode::kModulate, BlendMode::kScreen, BlendMode::kOverlay, BlendMode::kDarken, BlendMode::kLighten, BlendMode::kColorDodge, BlendMode::kColorBurn, BlendMode::kHardLight, BlendMode::kSoftLight, BlendMode::kDifference, BlendMode::kExclusion, BlendMode::kMultiply, BlendMode::kHue, BlendMode::kSaturation, BlendMode::kColor, BlendMode::kLuminosity, BlendMode::kLast = kLuminosity }
enum | Cap { Cap::kButt, Cap::kRound, Cap::kSquare }
enum | Join { Join::kMiter, Join::kRound, Join::kBevel }
enum | FillType { FillType::kNonZero, FillType::kOdd, FillType::kPositive, FillType::kNegative, FillType::kAbsGeqTwo }
enum | Convexity { Convexity::kUnknown, Convexity::kConvex }
enum | PlaygroundBackend { PlaygroundBackend::kMetal, PlaygroundBackend::kOpenGLES, PlaygroundBackend::kVulkan }
enum | HandleType { HandleType::kUnknown, HandleType::kTexture, HandleType::kBuffer, HandleType::kProgram, HandleType::kRenderBuffer, HandleType::kFrameBuffer }
enum | DebugResourceType { DebugResourceType::kTexture, DebugResourceType::kBuffer, DebugResourceType::kProgram, DebugResourceType::kShader, DebugResourceType::kRenderBuffer, DebugResourceType::kFrameBuffer }
enum | OptionalDeviceExtensionVK : uint32_t { OptionalDeviceExtensionVK::kEXTPipelineCreationFeedback, OptionalDeviceExtensionVK::kARMRasterizationOrderAttachmentAccess, OptionalDeviceExtensionVK::kEXTRasterizationOrderAttachmentAccess, OptionalDeviceExtensionVK::kLast }
enum | AttachmentKind { AttachmentKind::kColor, AttachmentKind::kDepth, AttachmentKind::kStencil, AttachmentKind::kDepthStencil }
enum | UseSubpassInput { UseSubpassInput::kYes, UseSubpassInput::kNo }
enum | ArchiveShaderType { ArchiveShaderType::kVertex, ArchiveShaderType::kFragment, ArchiveShaderType::kCompute }
enum | ArchiveRenderingBackend { ArchiveRenderingBackend::kMetal, ArchiveRenderingBackend::kVulkan, ArchiveRenderingBackend::kOpenGLES }
enum | WindingOrder { WindingOrder::kClockwise, WindingOrder::kCounterClockwise }

## Functions
static bool | UseColorSourceContents (const std::shared_ptr< VerticesGeometry > &vertices, const Paint &paint)
template<class... Args>
static void | BM_CanvasRecord (benchmark::State &state, Args &&... args)
| BENCHMARK_CAPTURE (BM_CanvasRecord, draw_rect, &DrawRect)
| BENCHMARK_CAPTURE (BM_CanvasRecord, draw_circle, &DrawCircle)
| BENCHMARK_CAPTURE (BM_CanvasRecord, draw_line, &DrawLine)
static const ArchiveClassRegistration * | RegistrationIfReady (const ArchiveClassRegistration *registration)
static constexpr int | ToParam (size_t index)
static constexpr int | ToColumn (size_t index)
std::shared_ptr< fml::Mapping > | CreateMappingWithCopy (const uint8_t *contents, size_t length)
std::shared_ptr< fml::Mapping > | CreateMappingFromAllocation (const std::shared_ptr< Allocation > &allocation)
std::shared_ptr< fml::Mapping > | CreateMappingWithString (std::string string)
std::shared_ptr< fml::Mapping > | CreateMappingWithString (std::shared_ptr< const std::string > string)
template<class ComparableType , class = std::enable_if_t<std::is_base_of_v<ComparableBase, ComparableType>>>
bool | DeepComparePointer (const std::shared_ptr< ComparableType > &lhs, const std::shared_ptr< ComparableType > &rhs)
template<class Key , class ComparableType , class = std::enable_if_t<std::is_base_of_v<ComparableBase, ComparableType>>>
bool | DeepCompareMap (const std::map< Key, std::shared_ptr< ComparableType >> &lhs, const std::map< Key, std::shared_ptr< ComparableType >> &rhs)
void | ImpellerUnimplemented (const char *method, const char *file, int line)
template<class T >
std::future< T > | RealizedFuture (T t)
std::string | SPrintF (const char *format,...)
bool | HasPrefix (const std::string &string, const std::string &prefix)
bool | HasSuffix (const std::string &string, const std::string &suffix)
std::string | StripPrefix (const std::string &string, const std::string &to_strip)
class | IPLR_CAPABILITY ("mutex") Mutex
void | ImpellerValidationErrorsSetFatal (bool fatal)
void | ImpellerValidationBreak (const char *message)
std::vector< spirv_cross::ID > | SortUniforms (const spirv_cross::ParsedIR *ir, const spirv_cross::Compiler *compiler, std::optional< spirv_cross::SPIRType::BaseType > type_filter=std::nullopt, bool include=true)
| Sorts uniform declarations in an IR according to decoration order. More...
| _FOR_EACH_CAPTURE_PROPERTY (_CAPTURE_PROPERTY_CAST_DEFINITION)
| _FOR_EACH_CAPTURE_PROPERTY (_CAPTURE_PROPERTY_DEFINITION)
| _FOR_EACH_CAPTURE_PROPERTY (_CAPTURE_PROPERTY_DECLARATION)
constexpr bool | StoreActionNeedsResolveTexture (StoreAction action)
std::string | TextureUsageMaskToString (TextureUsageMask mask)
std::string | AttachmentToString (const Attachment &attachment)
std::string | ColorAttachmentToString (const ColorAttachment &color)
std::string | DepthAttachmentToString (const DepthAttachment &depth)
std::string | StencilAttachmentToString (const StencilAttachment &stencil)
constexpr const char * | StorageModeToString (StorageMode mode)
constexpr bool | IsDepthWritable (PixelFormat format)
constexpr bool | IsStencilWritable (PixelFormat format)
constexpr const char * | PixelFormatToString (PixelFormat format)
constexpr const char * | LoadActionToString (LoadAction action)
constexpr const char * | StoreActionToString (StoreAction action)
constexpr bool | CanClearAttachment (LoadAction action)
constexpr bool | CanDiscardAttachmentWhenDone (StoreAction action)
constexpr const char * | TextureTypeToString (TextureType type)
constexpr bool | IsMultisampleCapable (TextureType type)
constexpr bool | TextureUsageIsRenderTarget (TextureUsageMask mask)
constexpr const char * | TextureUsageToString (TextureUsage usage)
constexpr size_t | BytesPerPixelForPixelFormat (PixelFormat format)
constexpr size_t | DefaultUniformAlignment ()
constexpr ShaderStage | ToShaderStage (RuntimeShaderStage stage)
constexpr Vector4 | ToVector (Color color)
std::string | TextureDescriptorToString (const TextureDescriptor &desc)
constexpr const char * | CompressionTypeToString (CompressionType type)
static BlendMode | ToBlendMode (flutter::DlBlendMode mode)
static Entity::TileMode | ToTileMode (flutter::DlTileMode tile_mode)
static impeller::SamplerDescriptor | ToSamplerDescriptor (const flutter::DlImageSampling options)
static impeller::SamplerDescriptor | ToSamplerDescriptor (const flutter::DlFilterMode options)
static Matrix | ToMatrix (const SkMatrix &m)
static Paint::Style | ToStyle (flutter::DlDrawStyle style)
static std::vector< Color > | ToColors (const flutter::DlColor colors[], int count)
static std::optional< ColorSource::Type > | ToColorSourceType (flutter::DlColorSourceType type)
static std::shared_ptr< ColorFilter > | ToColorFilter (const flutter::DlColorFilter *filter)
static FilterContents::BlurStyle | ToBlurStyle (flutter::DlBlurStyle blur_style)
static std::shared_ptr< ImageFilter > | ToImageFilter (const flutter::DlImageFilter *filter)
static Entity::ClipOperation | ToClipOperation (flutter::DlCanvas::ClipOp clip_op)
static Rect | ToRect (const SkRect &rect)
static VerticesGeometry::VertexMode | ToVertexMode (flutter::DlVertexMode mode)
std::shared_ptr< impeller::VerticesGeometry > | MakeVertices (const flutter::DlVertices *vertices)
template<typename PipelineT >
static std::unique_ptr< PipelineT > | CreateDefaultPipeline (const Context &context)
ContentContextOptions | OptionsFromPass (const RenderPass &pass)
ContentContextOptions | OptionsFromPassAndEntity (const RenderPass &pass, const Entity &entity)
std::optional< BlendMode > | InvertPorterDuffBlend (BlendMode blend_mode)
template<typename TPipeline >
static std::optional< Entity > | AdvancedBlend (const FilterInput::Vector &inputs, const ContentContext &renderer, const Entity &entity, const Rect &coverage, BlendMode blend_mode, std::optional< Color > foreground_color, ColorFilterContents::AbsorbOpacity absorb_opacity, PipelineProc pipeline_proc, std::optional< Scalar > alpha)
static std::optional< Entity > | PipelineBlend (const FilterInput::Vector &inputs, const ContentContext &renderer, const Entity &entity, const Rect &coverage, BlendMode blend_mode, std::optional< Color > foreground_color, ColorFilterContents::AbsorbOpacity absorb_opacity, std::optional< Scalar > alpha)
Sigma | ScaleSigma (Sigma sigma)
KernelPipeline::FragmentShader::KernelSamples | GenerateBlurInfo (BlurParameters parameters)
std::shared_ptr< Texture > | CreateGradientTexture (const GradientData &gradient_data, const std::shared_ptr< impeller::Context > &context)
| Create a host visible texture that contains the gradient defined by the provided gradient data. More...
std::vector< StopData > | CreateGradientColors (const std::vector< Color > &colors, const std::vector< Scalar > &stops)
| Populate a vector with the color and stop data for a gradient. More...
static ShaderType | GetShaderType (RuntimeUniformType type)
static std::shared_ptr< ShaderMetadata > | MakeShaderMetadata (const RuntimeUniformDescription &uniform)
static std::optional< SamplerAddressMode > | TileModeToAddressMode (Entity::TileMode tile_mode, const Capabilities &capabilities)
static RenderTarget::AttachmentConfig | GetDefaultStencilConfig (bool readable)
static EntityPassTarget | CreateRenderTarget (ContentContext &renderer, ISize size, bool readable, const Color &clear_color)
VertexBufferBuilder< TextureFillVertexShader::PerVertexData > | ComputeUVGeometryCPU (VertexBufferBuilder< SolidFillVertexShader::PerVertexData > &input, Point texture_origin, Size texture_coverage, Matrix effect_transform)
| Compute UV geometry for a VBB that contains only position geometry. More...
GeometryResult | ComputeUVGeometryForRect (Rect source_rect, Rect texture_coverage, Matrix effect_transform, const ContentContext &renderer, const Entity &entity, RenderPass &pass)
static std::vector< uint16_t > | fromFanIndices (const std::vector< Point > &vertices, const std::vector< uint16_t > &indices)
static constexpr bool | ValidateBlendModes ()
const char * | BlendModeToString (BlendMode blend_mode)
static constexpr Color | Min (Color c, float threshold)
static constexpr Scalar | Luminosity (Vector3 color)
static constexpr Vector3 | ClipColor (Vector3 color)
static constexpr Vector3 | SetLuminosity (Vector3 color, Scalar luminosity)
static constexpr Scalar | Saturation (Vector3 color)
static constexpr Vector3 | SetSaturation (Vector3 color, Scalar saturation)
static constexpr Vector3 | ComponentChoose (Vector3 a, Vector3 b, Vector3 value, Scalar cutoff)
static constexpr Vector3 | ToRGB (Color color)
static constexpr Color | FromRGB (Vector3 color, Scalar alpha)
static constexpr Color | DoColorBlend (Color d, Color s, const std::function< Vector3(Vector3, Vector3)> &blend_rgb_func)
static constexpr Color | DoColorBlendComponents (Color d, Color s, const std::function< Scalar(Scalar, Scalar)> &blend_func)
std::string | ColorToString (const Color &color)
template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>
constexpr Color | operator+ (T value, const Color &c)
template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>
constexpr Color | operator- (T value, const Color &c)
template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>
constexpr Color | operator* (T value, const Color &c)
template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>
constexpr Color | operator/ (T value, const Color &c)
template<class... Args>
static void | BM_Polyline (benchmark::State &state, Args &&... args)
template<class... Args>
static void | BM_Convex (benchmark::State &state, Args &&... args)
| BENCHMARK_CAPTURE (BM_Polyline, cubic_polyline, CreateCubic(), false)
| BENCHMARK_CAPTURE (BM_Polyline, cubic_polyline_tess, CreateCubic(), true)
| BENCHMARK_CAPTURE (BM_Polyline, quad_polyline, CreateQuadratic(), false)
| BENCHMARK_CAPTURE (BM_Polyline, quad_polyline_tess, CreateQuadratic(), true)
| BENCHMARK_CAPTURE (BM_Convex, rrect_convex, CreateRRect(), true)
static void | AppendColor (const Color &color, GradientData *data)
GradientData | CreateGradientBuffer (const std::vector< Color > &colors, const std::vector< Scalar > &stops)
| Populate a vector with the interpolated color bytes for the linear gradient described by colors and stops. More...
constexpr InternalHalf | ScalarToHalf (Scalar f)
| Convert a scalar to a half precision float. More...
static Scalar | LinearSolve (Scalar t, Scalar p0, Scalar p1)
static Scalar | QuadraticSolve (Scalar t, Scalar p0, Scalar p1, Scalar p2)
static Scalar | QuadraticSolveDerivative (Scalar t, Scalar p0, Scalar p1, Scalar p2)
static Scalar | CubicSolve (Scalar t, Scalar p0, Scalar p1, Scalar p2, Scalar p3)
static Scalar | CubicSolveDerivative (Scalar t, Scalar p0, Scalar p1, Scalar p2, Scalar p3)
static Scalar | ApproximateParabolaIntegral (Scalar x)
static bool | NearEqual (Scalar a, Scalar b, Scalar epsilon)
static bool | NearZero (Scalar a)
static void | CubicPathBoundingPopulateValues (std::vector< Scalar > &values, Scalar p1, Scalar p2, Scalar p3, Scalar p4)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator+ (const TPoint< F > &p1, const TPoint< I > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator+ (const TPoint< I > &p1, const TPoint< F > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator- (const TPoint< F > &p1, const TPoint< I > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator- (const TPoint< I > &p1, const TPoint< F > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator* (const TPoint< F > &p1, const TPoint< I > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator* (const TPoint< I > &p1, const TPoint< F > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator/ (const TPoint< F > &p1, const TPoint< I > &p2)
template<class F , class I , class = MixedOp<F, I>>
constexpr TPoint< F > | operator/ (const TPoint< I > &p1, const TPoint< F > &p2)
template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr TPoint< T > | operator* (U s, const TPoint< T > &p)
template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr TPoint< T > | operator/ (U s, const TPoint< T > &p)
template<class T , class U >
constexpr TPoint< T > | operator+ (const TSize< U > &s, const TPoint< T > &p)
template<class T , class U >
constexpr TPoint< T > | operator- (const TSize< U > &s, const TPoint< T > &p)
template<class T , class U >
constexpr TPoint< T > | operator* (const TSize< U > &s, const TPoint< T > &p)
template<class T , class U >
constexpr TPoint< T > | operator/ (const TSize< U > &s, const TPoint< T > &p)
template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>
constexpr T | Absolute (const T &val)
constexpr bool | ScalarNearlyZero (Scalar x, Scalar tolerance=kEhCloseEnough)
constexpr bool | ScalarNearlyEqual (Scalar x, Scalar y, Scalar tolerance=kEhCloseEnough)
template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr TSize< T > | operator* (U s, const TSize< T > &p)
template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr TSize< T > | operator/ (U s, const TSize< T > &p)
template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr Vector3 | operator* (U s, const Vector3 &p)
template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr Vector3 | operator+ (U s, const Vector3 &p)
template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr Vector3 | operator- (U s, const Vector3 &p)
template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>
constexpr Vector3 | operator/ (U s, const Vector3 &p)
static size_t | GetBytesPerPixel (DecompressedImage::Format format)
static std::vector< std::shared_ptr< fml::Mapping > > | ShaderLibraryMappingsForPlayground ()
static std::vector< std::shared_ptr< fml::Mapping > > | ShaderLibraryMappingsForPlayground ()
static std::vector< std::shared_ptr< fml::Mapping > > | ShaderLibraryMappingsForPlayground ()
static std::string | FormatWindowTitle (const std::string &test_name)
std::string | PlaygroundBackendToString (PlaygroundBackend backend)
static void | PlaygroundKeyCallback (GLFWwindow *window, int key, int scancode, int action, int mods)
static std::shared_ptr< Texture > | CreateTextureForDecompressedImage (const std::shared_ptr< Context > &context, DecompressedImage &decompressed_image, bool enable_mipmapping)
constexpr RuntimeStageBackend | PlaygroundBackendToRuntimeStageBackend (PlaygroundBackend backend)
static std::string | FormatWindowTitle (const std::string &test_name)
static void | DeleteFBO (const ProcTableGLES &gl, GLuint fbo, GLenum type)
static std::optional< GLuint > | ConfigureFBO (const ProcTableGLES &gl, const std::shared_ptr< Texture > &texture, GLenum fbo_type)
bool | EncodeCommandsInReactor (const std::shared_ptr< Allocator > &transients_allocator, const ReactorGLES &reactor, const std::vector< std::unique_ptr< BlitEncodeGLES >> &commands, const std::string &label)
static std::string | NormalizeUniformKey (const std::string &key)
static std::string | CreateUniformMemberKey (const std::string &struct_name, const std::string &member, bool is_array)
static std::string | CreateUniformMemberKey (const std::string &non_struct_member)
static std::string | GetGLString (const ProcTableGLES &gl, GLenum name)
static std::string | GetGLStringi (const ProcTableGLES &gl, GLenum name, int index)
static bool | DetermineIfES (const std::string &version)
static std::optional< Version > | DetermineVersion (std::string version)
static GLenum | ToTarget (DeviceBufferGLES::BindingType type)
std::string | DebugToFramebufferError (int status)
constexpr GLenum | ToMode (PrimitiveType primitive_type)
constexpr GLenum | ToIndexType (IndexType type)
constexpr GLenum | ToStencilOp (StencilOperation op)
constexpr GLenum | ToCompareFunction (CompareFunction func)
constexpr GLenum | ToBlendFactor (BlendFactor factor)
constexpr GLenum | ToBlendOperation (BlendOperation op)
constexpr std::optional< GLenum > | ToVertexAttribType (ShaderType type)
constexpr GLenum | ToTextureType (TextureType type)
constexpr std::optional< GLenum > | ToTextureTarget (TextureType type)
std::string | HandleTypeToString (HandleType type)
static std::string | GetShaderInfoLog (const ProcTableGLES &gl, GLuint shader)
static std::string | GetShaderSource (const ProcTableGLES &gl, GLuint shader)
static void | LogShaderCompilationFailure (const ProcTableGLES &gl, GLuint shader, const std::string &name, const fml::Mapping &source_mapping, ShaderStage stage)
static bool | LinkProgram (const ReactorGLES &reactor, const std::shared_ptr< PipelineGLES > &pipeline, const std::shared_ptr< const ShaderFunction > &vert_function, const std::shared_ptr< const ShaderFunction > &frag_function)
const char * | GLErrorToString (GLenum value)
bool | GLErrorIsFatal (GLenum value)
ProcTableGLES::Resolver | WrappedResolver (const ProcTableGLES::Resolver &resolver)
static const char * | FramebufferStatusToString (GLenum status)
static const char * | AttachmentTypeString (GLint type)
static std::string | DescribeFramebufferAttachment (const ProcTableGLES &gl, GLenum attachment)
static std::optional< GLenum > | ToDebugIdentifier (DebugResourceType type)
static bool | ResourceIsLive (const ProcTableGLES &gl, DebugResourceType type, GLint name)
static std::optional< GLuint > | CreateGLHandle (const ProcTableGLES &gl, HandleType type)
static bool | CollectGLHandle (const ProcTableGLES &gl, HandleType type, GLuint handle)
static DebugResourceType | ToDebugResourceType (HandleType type)
void | ConfigureBlending (const ProcTableGLES &gl, const ColorAttachmentDescriptor *color)
void | ConfigureStencil (GLenum face, const ProcTableGLES &gl, const StencilAttachmentDescriptor &stencil, uint32_t stencil_reference)
void | ConfigureStencil (const ProcTableGLES &gl, const PipelineDescriptor &pipeline, uint32_t stencil_reference)
bool | EncodeCommandsInReactor (const RenderPassData &pass_data, const std::shared_ptr< Allocator > &transients_allocator, const ReactorGLES &reactor, const std::vector< Command > &commands, const std::shared_ptr< GPUTracerGLES > &tracer)
static GLint | ToParam (MinMagFilter minmag_filter, std::optional< MipFilter > mip_filter=std::nullopt)
static GLint | ToAddressMode (SamplerAddressMode mode, bool supports_decal_sampler_address_mode)
static ShaderStage | ToShaderStage (ArchiveShaderType type)
static std::string | GLESShaderNameToShaderKeyName (const std::string &name, ShaderStage stage)
static TextureGLES::Type | GetTextureTypeFromDescriptor (const TextureDescriptor &desc)
HandleType | ToHandleType (TextureGLES::Type type)
static std::optional< GLenum > | ToRenderBufferFormat (PixelFormat format)
static GLenum | ToAttachmentPoint (TextureGLES::AttachmentPoint point)
static bool | DeviceSupportsDeviceTransientTargets (id< MTLDevice > device)
static bool | DeviceHasUnifiedMemoryArchitecture (id< MTLDevice > device)
static ISize | DeviceMaxTextureSizeSupported (id< MTLDevice > device)
static bool | SupportsLossyTextureCompression (id< MTLDevice > device)
static MTLResourceOptions | ToMTLResourceOptions (StorageMode type, bool supports_memoryless_targets, bool supports_uma)
static MTLStorageMode | ToMTLStorageMode (StorageMode mode, bool supports_memoryless_targets, bool supports_uma)
| API_AVAILABLE (ios(14.0), macos(11.0)) static NSString *MTLCommandEncoderErrorStateToString(MTLCommandEncoderErrorState state)
static NSString * | MTLCommandBufferErrorToString (MTLCommandBufferError code)
static bool | LogMTLCommandBufferErrorIfPresent (id< MTLCommandBuffer > buffer)
static id< MTLCommandBuffer > | CreateCommandBuffer (id< MTLCommandQueue > queue)
static CommandBuffer::Status | ToCommitResult (MTLCommandBufferStatus status)
static bool | Bind (ComputePassBindingsCache &pass, Allocator &allocator, size_t bind_index, const BufferView &view)
static bool | Bind (ComputePassBindingsCache &pass, size_t bind_index, const Sampler &sampler, const Texture &texture)
static bool | DeviceSupportsFramebufferFetch (id< MTLDevice > device)
static bool | DeviceSupportsComputeSubgroups (id< MTLDevice > device)
static std::unique_ptr< Capabilities > | InferMetalCapabilities (id< MTLDevice > device, PixelFormat color_format)
static NSArray< id< MTLLibrary > > * | MTLShaderLibraryFromFilePaths (id< MTLDevice > device, const std::vector< std::string > &libraries_paths)
static NSArray< id< MTLLibrary > > * | MTLShaderLibraryFromFileData (id< MTLDevice > device, const std::vector< std::shared_ptr< fml::Mapping >> &libraries_data, const std::string &label)
static id< MTLDevice > | CreateMetalDevice ()
static id< MTLCommandQueue > | CreateMetalCommandQueue (id< MTLDevice > device)
constexpr PixelFormat | FromMTLPixelFormat (MTLPixelFormat format)
MTLPixelFormat | SafeMTLPixelFormatDepth24Unorm_Stencil8 ()
MTLPixelFormat | SafeMTLPixelFormatBGR10_XR_sRGB ()
MTLPixelFormat | SafeMTLPixelFormatBGR10_XR ()
MTLPixelFormat | SafeMTLPixelFormatBGRA10_XR ()
constexpr MTLPixelFormat | ToMTLPixelFormat (PixelFormat format)
constexpr MTLBlendFactor | ToMTLBlendFactor (BlendFactor type)
constexpr MTLPrimitiveType | ToMTLPrimitiveType (PrimitiveType type)
constexpr MTLTriangleFillMode | ToMTLTriangleFillMode (PolygonMode mode)
constexpr MTLIndexType | ToMTLIndexType (IndexType type)
constexpr MTLCullMode | ToMTLCullMode (CullMode mode)
constexpr MTLBlendOperation | ToMTLBlendOperation (BlendOperation type)
constexpr MTLColorWriteMask | ToMTLColorWriteMask (std::underlying_type_t< ColorWriteMask > type)
constexpr MTLCompareFunction | ToMTLCompareFunction (CompareFunction func)
constexpr MTLStencilOperation | ToMTLStencilOperation (StencilOperation op)
constexpr MTLLoadAction | ToMTLLoadAction (LoadAction action)
constexpr LoadAction | FromMTLLoadAction (MTLLoadAction action)
constexpr MTLStoreAction | ToMTLStoreAction (StoreAction action)
constexpr StoreAction | FromMTLStoreAction (MTLStoreAction action)
constexpr MTLSamplerMinMagFilter | ToMTLSamplerMinMagFilter (MinMagFilter filter)
constexpr MTLSamplerMipFilter | ToMTLSamplerMipFilter (MipFilter filter)
constexpr MTLSamplerAddressMode | ToMTLSamplerAddressMode (SamplerAddressMode mode)
MTLClearColor | ToMTLClearColor (const Color &color)
constexpr MTLTextureType | ToMTLTextureType (TextureType type)
MTLRenderPipelineColorAttachmentDescriptor * | ToMTLRenderPipelineColorAttachmentDescriptor (ColorAttachmentDescriptor descriptor)
MTLDepthStencilDescriptor * | ToMTLDepthStencilDescriptor (std::optional< DepthAttachmentDescriptor > depth, std::optional< StencilAttachmentDescriptor > front, std::optional< StencilAttachmentDescriptor > back)
MTLTextureDescriptor * | ToMTLTextureDescriptor (const TextureDescriptor &desc)
MTLStencilDescriptor * | ToMTLStencilDescriptor (const StencilAttachmentDescriptor &descriptor)
std::shared_future< id< CAMetalDrawable > > | GetDrawableDeferred (CAMetalLayer *layer)
| Create a deferred drawable from a CAMetalLayer. More...
std::shared_ptr< TextureMTL > | CreateTextureFromDrawableFuture (TextureDescriptor desc, const std::shared_future< id< CAMetalDrawable >> &drawble_future)
| Create a TextureMTL from a deferred drawable. More...
static void | GetMTLRenderPipelineDescriptor (const PipelineDescriptor &desc, const Callback &callback)
static MTLComputePipelineDescriptor * | GetMTLComputePipelineDescriptor (const ComputePipelineDescriptor &desc)
static id< MTLDepthStencilState > | CreateDepthStencilDescriptor (const PipelineDescriptor &desc, id< MTLDevice > device)
static bool | ConfigureResolveTextureAttachment (const Attachment &desc, MTLRenderPassAttachmentDescriptor *attachment)
static bool | ConfigureAttachment (const Attachment &desc, MTLRenderPassAttachmentDescriptor *attachment)
static bool | ConfigureColorAttachment (const ColorAttachment &desc, MTLRenderPassColorAttachmentDescriptor *attachment)
static bool | ConfigureDepthAttachment (const DepthAttachment &desc, MTLRenderPassDepthAttachmentDescriptor *attachment)
static bool | ConfigureStencilAttachment (const StencilAttachment &desc, MTLRenderPassStencilAttachmentDescriptor *attachment)
static MTLRenderPassDescriptor * | ToMTLRenderPassDescriptor (const RenderTarget &desc)
static bool | Bind (PassBindingsCache &pass, Allocator &allocator, ShaderStage stage, size_t bind_index, const BufferView &view)
static bool | Bind (PassBindingsCache &pass, ShaderStage stage, size_t bind_index, const Sampler &sampler, const Texture &texture)
static MTLFunctionType | ToMTLFunctionType (ShaderStage stage)
static std::optional< RenderTarget > | WrapTextureWithRenderTarget (Allocator &allocator, id< MTLTexture > texture, bool requires_blit, std::optional< IRect > clip_rect)
std::shared_ptr< Texture > | WrapperMTL (TextureDescriptor desc, const void *mtl_texture, std::function< void()> deletion_proc)
std::shared_ptr< Texture > | WrapTextureMTL (TextureDescriptor desc, const void *mtl_texture, std::function< void()> deletion_proc=nullptr)
static MTLVertexFormat | ReadStageInputFormat (const ShaderStageIOSlot &input)
static constexpr vk::Flags< vk::MemoryPropertyFlagBits > | ToVKBufferMemoryPropertyFlags (StorageMode mode)
static VmaAllocationCreateFlags | ToVmaAllocationBufferCreateFlags (StorageMode mode)
static PoolVMA | CreateBufferPool (VmaAllocator allocator)
static constexpr vk::ImageUsageFlags | ToVKImageUsageFlags (PixelFormat format, TextureUsageMask usage, StorageMode mode, bool supports_memoryless_textures, bool supports_framebuffer_fetch)
static constexpr VmaMemoryUsage | ToVMAMemoryUsage ()
static constexpr vk::Flags< vk::MemoryPropertyFlagBits > | ToVKTextureMemoryPropertyFlags (StorageMode mode, bool supports_memoryless_textures)
static VmaAllocationCreateFlags | ToVmaAllocationCreateFlags (StorageMode mode)
static bool | BindImages (const Bindings &bindings, Allocator &allocator, const std::shared_ptr< CommandEncoderVK > &encoder, vk::DescriptorSet &vk_desc_set, std::vector< vk::DescriptorImageInfo > &images, std::vector< vk::WriteDescriptorSet > &writes)
static bool | BindBuffers (const Bindings &bindings, Allocator &allocator, const std::shared_ptr< CommandEncoderVK > &encoder, vk::DescriptorSet &vk_desc_set, const std::vector< DescriptorSetLayout > &desc_set, std::vector< vk::DescriptorBufferInfo > &buffers, std::vector< vk::WriteDescriptorSet > &writes)
fml::StatusOr< std::vector< vk::DescriptorSet > > | AllocateAndBindDescriptorSets (const ContextVK &context, const std::shared_ptr< CommandEncoderVK > &encoder, const std::vector< Command > &commands, const TextureVK &input_attachment)
fml::StatusOr< std::vector< vk::DescriptorSet > > | AllocateAndBindDescriptorSets (const ContextVK &context, const std::shared_ptr< CommandEncoderVK > &encoder, const std::vector< ComputeCommand > &commands)
static void | InsertImageMemoryBarrier (const vk::CommandBuffer &cmd, const vk::Image &image, vk::AccessFlags src_access_mask, vk::AccessFlags dst_access_mask, vk::ImageLayout old_layout, vk::ImageLayout new_layout, vk::PipelineStageFlags src_stage, vk::PipelineStageFlags dst_stage, uint32_t base_mip_level, uint32_t mip_level_count=1u)
static const char * | GetDeviceExtensionName (OptionalDeviceExtensionVK ext)
static void | IterateOptionalDeviceExtensions (const std::function< void(OptionalDeviceExtensionVK)> &it)
static std::optional< std::set< std::string > > | GetSupportedDeviceExtensions (const vk::PhysicalDevice &physical_device)
static bool | HasSuitableColorFormat (const vk::PhysicalDevice &device, vk::Format format)
static bool | HasSuitableDepthStencilFormat (const vk::PhysicalDevice &device, vk::Format format)
static bool | PhysicalDeviceSupportsRequiredFormats (const vk::PhysicalDevice &device)
static bool | HasRequiredProperties (const vk::PhysicalDevice &physical_device)
static bool | HasRequiredQueues (const vk::PhysicalDevice &physical_device)
static std::unordered_map< const ContextVK *, std::vector< std::weak_ptr< CommandPoolVK > > > g_all_pools_map | IPLR_GUARDED_BY (g_all_pools_map_mutex)
static bool | UpdateBindingLayouts (const Bindings &bindings, const vk::CommandBuffer &buffer)
static bool | UpdateBindingLayouts (const ComputeCommand &command, const vk::CommandBuffer &buffer)
static bool | UpdateBindingLayouts (const std::vector< ComputeCommand > &commands, const vk::CommandBuffer &buffer)
bool | HasValidationLayers ()
static std::optional< vk::PhysicalDevice > | PickPhysicalDevice (const CapabilitiesVK &caps, const vk::Instance &instance)
static std::vector< vk::DeviceQueueCreateInfo > | GetQueueCreateInfos (std::initializer_list< QueueIndexVK > queues)
static std::optional< QueueIndexVK > | PickQueue (const vk::PhysicalDevice &device, vk::QueueFlagBits flags)
static std::string | JoinLabels (const VkDebugUtilsLabelEXT *labels, size_t count)
static std::string | JoinVKDebugUtilsObjectNameInfoEXT (const VkDebugUtilsObjectNameInfoEXT *names, size_t count)
static std::vector< vk::Fence > | GetFencesForWaitSet (const WaitSet &set)
vk::PipelineDepthStencilStateCreateInfo | ToVKPipelineDepthStencilStateCreateInfo (std::optional< DepthAttachmentDescriptor > depth, std::optional< StencilAttachmentDescriptor > front, std::optional< StencilAttachmentDescriptor > back)
constexpr vk::SampleCountFlagBits | ToVKSampleCountFlagBits (SampleCount count)
constexpr vk::BlendFactor | ToVKBlendFactor (BlendFactor factor)
constexpr vk::BlendOp | ToVKBlendOp (BlendOperation op)
constexpr vk::ColorComponentFlags | ToVKColorComponentFlags (std::underlying_type_t< ColorWriteMask > type)
constexpr vk::PipelineColorBlendAttachmentState | ToVKPipelineColorBlendAttachmentState (const ColorAttachmentDescriptor &desc)
constexpr std::optional< vk::ShaderStageFlagBits > | ToVKShaderStageFlagBits (ShaderStage stage)
constexpr vk::Format | ToVKImageFormat (PixelFormat format)
constexpr PixelFormat | ToPixelFormat (vk::Format format)
constexpr vk::SampleCountFlagBits | ToVKSampleCount (SampleCount sample_count)
constexpr vk::Filter | ToVKSamplerMinMagFilter (MinMagFilter filter)
constexpr vk::SamplerMipmapMode | ToVKSamplerMipmapMode (MipFilter filter)
constexpr vk::SamplerAddressMode | ToVKSamplerAddressMode (SamplerAddressMode mode)
constexpr vk::ShaderStageFlags | ToVkShaderStage (ShaderStage stage)
constexpr vk::DescriptorType | ToVKDescriptorType (DescriptorType type)
constexpr vk::DescriptorSetLayoutBinding | ToVKDescriptorSetLayoutBinding (const DescriptorSetLayout &layout)
constexpr vk::AttachmentLoadOp | ToVKAttachmentLoadOp (LoadAction load_action)
constexpr vk::AttachmentStoreOp | ToVKAttachmentStoreOp (StoreAction store_action)
constexpr vk::IndexType | ToVKIndexType (IndexType index_type)
constexpr vk::PolygonMode | ToVKPolygonMode (PolygonMode mode)
constexpr vk::PrimitiveTopology | ToVKPrimitiveTopology (PrimitiveType primitive)
constexpr bool | PixelFormatIsDepthStencil (PixelFormat format)
constexpr AttachmentKind | AttachmentKindFromFormat (PixelFormat format)
constexpr vk::AttachmentDescription | CreateAttachmentDescription (PixelFormat format, SampleCount sample_count, LoadAction load_action, StoreAction store_action, vk::ImageLayout current_layout, bool supports_framebuffer_fetch)
constexpr vk::CullModeFlags | ToVKCullModeFlags (CullMode mode)
constexpr vk::CompareOp | ToVKCompareOp (CompareFunction op)
constexpr vk::StencilOp | ToVKStencilOp (StencilOperation op)
constexpr vk::StencilOpState | ToVKStencilOpState (const StencilAttachmentDescriptor &desc)
constexpr vk::ImageAspectFlags | ToVKImageAspectFlags (PixelFormat format)
constexpr uint32_t | ToArrayLayerCount (TextureType type)
constexpr vk::ImageViewType | ToVKImageViewType (TextureType type)
constexpr vk::ImageCreateFlags | ToVKImageCreateFlags (TextureType type)
constexpr vk::ImageAspectFlags | ToImageAspectFlags (PixelFormat format)
static bool | VerifyExistingCache (const fml::Mapping &mapping, const CapabilitiesVK &caps)
static std::shared_ptr< fml::Mapping > | DecorateCacheWithMetadata (std::shared_ptr< fml::Mapping > data)
static std::unique_ptr< fml::Mapping > | RemoveMetadataFromCache (std::unique_ptr< fml::Mapping > data)
static std::unique_ptr< fml::Mapping > | OpenCacheFile (const fml::UniqueFD &base_directory, const std::string &cache_file_name, const CapabilitiesVK &caps)
static vk::AttachmentDescription | CreatePlaceholderAttachmentDescription (PixelFormat format, SampleCount sample_count)
| Creates an attachment description that does just enough to ensure render pass compatibility with the pass associated later with the framebuffer. More...
static vk::UniqueRenderPass | CreateCompatRenderPassForPipeline (const vk::Device &device, const PipelineDescriptor &desc, bool supports_framebuffer_fetch)
constexpr vk::FrontFace | ToVKFrontFace (WindingOrder order)
static vk::PipelineCreationFeedbackEXT | EmptyFeedback ()
static void | ReportPipelineCreationFeedbackToLog (std::stringstream &stream, const vk::PipelineCreationFeedbackEXT &feedback)
static void | ReportPipelineCreationFeedbackToLog (const PipelineDescriptor &desc, const vk::PipelineCreationFeedbackCreateInfoEXT &feedback)
static void | ReportPipelineCreationFeedbackToTrace (const PipelineDescriptor &desc, const vk::PipelineCreationFeedbackCreateInfoEXT &feedback)
static void | ReportPipelineCreationFeedback (const PipelineDescriptor &desc, const vk::PipelineCreationFeedbackCreateInfoEXT &feedback)
static vk::AttachmentDescription | CreateAttachmentDescription (const Attachment &attachment, const std::shared_ptr< Texture > Attachment::*texture_ptr, bool supports_framebuffer_fetch)
static void | SetTextureLayout (const Attachment &attachment, const vk::AttachmentDescription &attachment_desc, const std::shared_ptr< CommandBufferVK > &command_buffer, const std::shared_ptr< Texture > Attachment::*texture_ptr)
static vk::ClearColorValue | VKClearValueFromColor (Color color)
static vk::ClearDepthStencilValue | VKClearValueFromDepthStencil (uint32_t stencil, Scalar depth)
static std::vector< vk::ClearValue > | GetVKClearValues (const RenderTarget &target)
static bool | UpdateBindingLayouts (const Bindings &bindings, const vk::CommandBuffer &buffer)
static bool | UpdateBindingLayouts (const Command &command, const vk::CommandBuffer &buffer)
static bool | UpdateBindingLayouts (const std::vector< Command > &commands, const vk::CommandBuffer &buffer)
static void | SetViewportAndScissor (const Command &command, const vk::CommandBuffer &cmd_buffer, PassBindingsCache &cmd_buffer_cache, const ISize &target_size)
static bool | EncodeCommand (const Context &context, const Command &command, CommandEncoderVK &encoder, PassBindingsCache &command_buffer_cache, const ISize &target_size, const vk::DescriptorSet vk_desc_set)
static ShaderStage | ToShaderStage (ArchiveShaderType type)
static std::string | VKShaderNameToShaderKeyName (const std::string &name, ShaderStage stage)
static bool | IsMappingSPIRV (const fml::Mapping &mapping)
template<class T >
auto | MakeSharedVK (vk::UniqueHandle< T, VULKAN_HPP_DEFAULT_DISPATCHER_TYPE > handle)
static bool | ContainsFormat (const std::vector< vk::SurfaceFormatKHR > &formats, vk::SurfaceFormatKHR format)
static std::optional< vk::SurfaceFormatKHR > | ChooseSurfaceFormat (const std::vector< vk::SurfaceFormatKHR > &formats, PixelFormat preference)
static std::optional< vk::CompositeAlphaFlagBitsKHR > | ChooseAlphaCompositionMode (vk::CompositeAlphaFlagsKHR flags)
static std::optional< vk::Queue > | ChoosePresentQueue (const vk::PhysicalDevice &physical_device, const vk::Device &device, const vk::SurfaceKHR &surface)
vk::Format | ToVertexDescriptorFormat (const ShaderStageIOSlot &input)
template<typename T >
static std::shared_ptr< DeviceBuffer > | CreateDeviceBuffer (const std::shared_ptr< Context > &context, const std::string &label, StorageMode storage_mode=StorageMode::kDevicePrivate)
PipelineFuture< PipelineDescriptor > | CreatePipelineFuture (const Context &context, std::optional< PipelineDescriptor > desc)
PipelineFuture< ComputePipelineDescriptor > | CreatePipelineFuture (const Context &context, std::optional< ComputePipelineDescriptor > desc)
static RuntimeUniformType | ToType (fb::UniformDataType type)
static RuntimeShaderStage | ToShaderStage (fb::Stage stage)
constexpr ArchiveRenderingBackend | ToArchiveRenderingBackend (fb::RenderingBackend backend)
constexpr fb::RenderingBackend | ToRenderingBackend (ArchiveRenderingBackend backend)
constexpr ArchiveShaderType | ToShaderType (fb::Stage stage)
bool | Main (const fml::CommandLine &command_line)
std::optional< ArchiveShaderType > | InferShaderTypefromFileExtension (const std::filesystem::path &path)
constexpr fb::Stage | ToStage (ArchiveShaderType type)
PathBuilder * | CreatePathBuilder ()
void | DestroyPathBuilder (PathBuilder *builder)
void | MoveTo (PathBuilder *builder, Scalar x, Scalar y)
void | LineTo (PathBuilder *builder, Scalar x, Scalar y)
void | CubicTo (PathBuilder *builder, Scalar x1, Scalar y1, Scalar x2, Scalar y2, Scalar x3, Scalar y3)
void | Close (PathBuilder *builder)
struct Vertices * | Tessellate (PathBuilder *builder, int fill_type, Scalar tolerance)
void | DestroyVertices (Vertices *vertices)
static void * | HeapAlloc (void *userData, unsigned int size)
static void * | HeapRealloc (void *userData, void *ptr, unsigned int size)
static void | HeapFree (void *userData, void *ptr)
static int | ToTessWindingRule (FillType fill_type)
void | DestroyTessellator (TESStesselator *tessellator)
static size_t | ComputeQuadrantDivisions (Scalar pixel_radius)
static Font | ToFont (const SkTextBlobRunIterator &run)
static Rect | ToRect (const SkRect &rect)
std::shared_ptr< TextFrame > | MakeTextFrameFromTextBlobSkia (const sk_sp< SkTextBlob > &blob)
static size_t | PairsFitInAtlasOfSize (const std::vector< FontGlyphPair > &pairs, const ISize &atlas_size, std::vector< Rect > &glyph_positions, const std::shared_ptr< RectanglePacker > &rect_packer)
static bool | CanAppendToExistingAtlas (const std::shared_ptr< GlyphAtlas > &atlas, const std::vector< FontGlyphPair > &extra_pairs, std::vector< Rect > &glyph_positions, ISize atlas_size, const std::shared_ptr< RectanglePacker > &rect_packer)
static ISize | OptimumAtlasSizeForFontGlyphPairs (const std::vector< FontGlyphPair > &pairs, std::vector< Rect > &glyph_positions, const std::shared_ptr< GlyphAtlasContext > &atlas_context, GlyphAtlas::Type type, const ISize &max_texture_size)
static void | DrawGlyph (SkCanvas *canvas, const ScaledFont &scaled_font, const Glyph &glyph, const Rect &location, bool has_color)
static bool | UpdateAtlasBitmap (const GlyphAtlas &atlas, const std::shared_ptr< SkBitmap > &bitmap, const std::vector< FontGlyphPair > &new_pairs)
static std::shared_ptr< SkBitmap > | CreateAtlasBitmap (const GlyphAtlas &atlas, const ISize &atlas_size)
static bool | UpdateGlyphTextureAtlas (std::shared_ptr< SkBitmap > bitmap, const std::shared_ptr< Texture > &texture)
static std::shared_ptr< Texture > | UploadGlyphTextureAtlas (const std::shared_ptr< Allocator > &allocator, std::shared_ptr< SkBitmap > bitmap, const ISize &atlas_size, PixelFormat format)
std::shared_ptr< TextFrame > | MakeTextFrameSTB (const std::shared_ptr< TypefaceSTB > &typeface_stb, Font::Metrics metrics, const std::string &text)
static size_t | PairsFitInAtlasOfSize (const std::vector< FontGlyphPair > &pairs, const ISize &atlas_size, std::vector< Rect > &glyph_positions, const std::shared_ptr< RectanglePacker > &rect_packer)
static bool | CanAppendToExistingAtlas (const std::shared_ptr< GlyphAtlas > &atlas, const std::vector< FontGlyphPair > &extra_pairs, std::vector< Rect > &glyph_positions, ISize atlas_size, const std::shared_ptr< RectanglePacker > &rect_packer)
static ISize | OptimumAtlasSizeForFontGlyphPairs (const std::vector< FontGlyphPair > &pairs, std::vector< Rect > &glyph_positions, const std::shared_ptr< GlyphAtlasContext > &atlas_context, GlyphAtlas::Type type, const ISize &max_texture_size)
static void | DrawGlyph (BitmapSTB *bitmap, const ScaledFont &scaled_font, const Glyph &glyph, const Rect &location, bool has_color)
static bool | UpdateAtlasBitmap (const GlyphAtlas &atlas, const std::shared_ptr< BitmapSTB > &bitmap, const std::vector< FontGlyphPair > &new_pairs)
static std::shared_ptr< BitmapSTB > | CreateAtlasBitmap (const GlyphAtlas &atlas, const ISize &atlas_size)
static bool | UpdateGlyphTextureAtlas (std::shared_ptr< BitmapSTB > &bitmap, const std::shared_ptr< Texture > &texture)
static std::shared_ptr< Texture > | UploadGlyphTextureAtlas (const std::shared_ptr< Allocator > &allocator, std::shared_ptr< BitmapSTB > &bitmap, const ISize &atlas_size, PixelFormat format)

## Variables
static const char * | kElementsWindowName = "Elements"
static const char * | kPropertiesWindowName = "Properties"
static const std::initializer_list< std::string > | kSupportedDocuments
static const auto | kPropertiesProcTable
constexpr ColorMatrix | kColorInversion
| A color matrix which inverts colors. More...
static constexpr const char * | kArchivePrimaryKeyColumnName = "primary_key"
static constexpr const char * | kVectorKeys = "keys"
static std::atomic_size_t | sLastID
static std::atomic_int32_t | sValidationLogsDisabledCount = 0
static bool | sValidationLogsAreFatal = false
constexpr std::array< std::array< Scalar, 5 >, 15 > | kPorterDuffCoefficients
constexpr Matrix | kMatrixBT601LimitedRange
constexpr Matrix | kMatrixBT601FullRange
static const GeometryResult | kEmptyResult
static constexpr const char * | kBlendModeNames []
constexpr float | kE = 2.7182818284590452354f
constexpr float | kLog2E = 1.4426950408889634074f
constexpr float | kLog10E = 0.43429448190325182765f
constexpr float | kLogE2 = 0.69314718055994530942f
constexpr float | kLogE10 = 2.30258509299404568402f
constexpr float | kPi = 3.14159265358979323846f
constexpr float | k2Pi = 6.28318530717958647693f
constexpr float | kPiOver2 = 1.57079632679489661923f
constexpr float | kPiOver4 = 0.78539816339744830962f
constexpr float | k1OverPi = 0.31830988618379067154f
constexpr float | k2OverPi = 0.63661977236758134308f
constexpr float | k2OverSqrtPi = 1.12837916709551257390f
constexpr float | kSqrt2 = 1.41421356237309504880f
constexpr float | k1OverSqrt2 = 0.70710678118654752440f
constexpr float | kPhi = 1.61803398874989484820f
constexpr float | kEhCloseEnough = 1e-3f
static Tessellator | tess
static constexpr Scalar | kDefaultCurveTolerance = .1f
constexpr static float | kKernelRadiusPerSigma = 1.73205080757
static const std::vector< std::string > | kSkipTests
static std::atomic_bool | gShouldOpenNewPlaygrounds = true
static const constexpr char * | kFramebufferFetchExt
static const constexpr char * | kTextureBorderClampExt
static const constexpr char * | kNvidiaTextureBorderClampExt
static const constexpr char * | kMultisampledRenderToTextureExt
static constexpr size_t | kMagicSubpassInputBinding = 64
static constexpr const char * | kInstanceLayer = "ImpellerInstance"
FML_THREAD_LOCAL fml::ThreadLocalUniquePtr< CommandPoolMap > | tls_command_pool_map
static Mutex | g_all_pools_map_mutex
static bool | gHasValidationLayers = false
static constexpr vk::AttachmentReference | kUnusedAttachmentReference
static constexpr uint32_t | kPoolSize = 1024u
constexpr size_t | kImageSizeThresholdForDedicatedMemoryAllocation
static constexpr const char * | kPipelineCacheFileName
static constexpr size_t | kMaxFramesInFlight = 3u
static constexpr size_t | kPollFramesForOrientation = 1u
static const TESSalloc | kAlloc
static constexpr int | kPrecomputedDivisionCount = 1024
static int | kPrecomputedDivisions [kPrecomputedDivisionCount]
static constexpr Scalar | kScaleSize = 100000.0f
constexpr auto | kPadding = 2

## Typedef Documentation

## ◆ BlendColorBurnPipeline

using impeller::BlendColorBurnPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 179 of file content_context.h.

## ◆ BlendColorDodgePipeline

using impeller::BlendColorDodgePipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 181 of file content_context.h.

## ◆ BlendColorPipeline

using impeller::BlendColorPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 177 of file content_context.h.

## ◆ BlendDarkenPipeline

using impeller::BlendDarkenPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 183 of file content_context.h.

## ◆ BlendDifferencePipeline

using impeller::BlendDifferencePipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 185 of file content_context.h.

## ◆ BlendExclusionPipeline

using impeller::BlendExclusionPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 187 of file content_context.h.

## ◆ BlendHardLightPipeline

using impeller::BlendHardLightPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 189 of file content_context.h.

## ◆ BlendHuePipeline

using impeller::BlendHuePipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 191 of file content_context.h.

## ◆ BlendLightenPipeline

using impeller::BlendLightenPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 193 of file content_context.h.

## ◆ BlendLuminosityPipeline

using impeller::BlendLuminosityPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 195 of file content_context.h.

## ◆ BlendMultiplyPipeline

using impeller::BlendMultiplyPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 197 of file content_context.h.

## ◆ BlendOverlayPipeline

using impeller::BlendOverlayPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 199 of file content_context.h.

## ◆ BlendPipeline

using impeller::BlendPipeline = typedef RenderPipelineT<BlendVertexShader, BlendFragmentShader>

Definition at line 129 of file content_context.h.

## ◆ BlendSaturationPipeline

using impeller::BlendSaturationPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 201 of file content_context.h.

## ◆ BlendScreenPipeline

using impeller::BlendScreenPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 203 of file content_context.h.

## ◆ BlendSoftLightPipeline

using impeller::BlendSoftLightPipeline = typedef RenderPipelineT<AdvancedBlendVertexShader, AdvancedBlendFragmentShader>

Definition at line 205 of file content_context.h.

## ◆ BorderMaskBlurPipeline

using impeller::BorderMaskBlurPipeline = typedef RenderPipelineT<BorderMaskBlurVertexShader, BorderMaskBlurFragmentShader>

Definition at line 147 of file content_context.h.

## ◆ BufferResource

using impeller::BufferResource = typedef Resource<BufferView>

Definition at line 57 of file command.h.

## ◆ Callback

using impeller::Callback = typedef std::function<void(MTLRenderPipelineDescriptor*)>

Definition at line 26 of file pipeline_library_mtl.mm.

## ◆ CanvasType

using impeller::CanvasType = typedef Canvas

CanvasType defines what is the concrete type of the Canvas to be used. When the recorder is enabled it will be swapped out in place of the Canvas at compile-time.

Definition at line 20 of file canvas_type.h.

## ◆ ClipPipeline

using impeller::ClipPipeline = typedef RenderPipelineT<ClipVertexShader, ClipFragmentShader>

Definition at line 168 of file content_context.h.

## ◆ Clock

using impeller::Clock = typedef std::chrono::high_resolution_clock

Definition at line 14 of file timing.h.

## ◆ ColorMatrixColorFilterPipeline

using impeller::ColorMatrixColorFilterPipeline = typedef RenderPipelineT<ColorMatrixColorFilterVertexShader, ColorMatrixColorFilterFragmentShader>

Definition at line 153 of file content_context.h.

## ◆ CommandPoolMap

using impeller::CommandPoolMap = typedef std::unordered_map<uint64_t, std::shared_ptr<CommandPoolVK> >

Definition at line 131 of file command_pool_vk.cc.

## ◆ ComputePipelineMap

using impeller::ComputePipelineMap = typedef std::unordered_map<ComputePipelineDescriptor, PipelineFuture<ComputePipelineDescriptor>, ComparableHash<ComputePipelineDescriptor>, ComparableEqual<ComputePipelineDescriptor> >

Definition at line 28 of file pipeline_library.h.

## ◆ ConicalGradientFillPipeline

using impeller::ConicalGradientFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, ConicalGradientFillFragmentShader>

Definition at line 112 of file content_context.h.

## ◆ ConicalGradientSSBOFillPipeline

using impeller::ConicalGradientSSBOFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, ConicalGradientSsboFillFragmentShader>

Definition at line 120 of file content_context.h.

## ◆ CTessellator

using impeller::CTessellator = typedef std::unique_ptr<TESStesselator, decltype(&DestroyTessellator)>

Definition at line 25 of file tessellator.h.

## ◆ DescriptorPoolAndSize

using impeller::DescriptorPoolAndSize = typedef std::pair<vk::UniqueDescriptorPool, uint32_t>

Definition at line 50 of file descriptor_pool_vk.h.

## ◆ EllipticalVertexGenerator

using impeller::EllipticalVertexGenerator = typedef Tessellator::EllipticalVertexGenerator

Definition at line 377 of file tessellator.cc.

## ◆ FontGlyphMap

using impeller::FontGlyphMap = typedef std::unordered_map<ScaledFont, std::unordered_set<Glyph> >

Definition at line 29 of file font_glyph_pair.h.

## ◆ FramebufferBlendColorBurnPipeline

using impeller::FramebufferBlendColorBurnPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 212 of file content_context.h.

## ◆ FramebufferBlendColorDodgePipeline

using impeller::FramebufferBlendColorDodgePipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 215 of file content_context.h.

## ◆ FramebufferBlendColorPipeline

using impeller::FramebufferBlendColorPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 209 of file content_context.h.

## ◆ FramebufferBlendDarkenPipeline

using impeller::FramebufferBlendDarkenPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 218 of file content_context.h.

## ◆ FramebufferBlendDifferencePipeline

using impeller::FramebufferBlendDifferencePipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 221 of file content_context.h.

## ◆ FramebufferBlendExclusionPipeline

using impeller::FramebufferBlendExclusionPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 224 of file content_context.h.

## ◆ FramebufferBlendHardLightPipeline

using impeller::FramebufferBlendHardLightPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 227 of file content_context.h.

## ◆ FramebufferBlendHuePipeline

using impeller::FramebufferBlendHuePipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 230 of file content_context.h.

## ◆ FramebufferBlendLightenPipeline

using impeller::FramebufferBlendLightenPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 233 of file content_context.h.

## ◆ FramebufferBlendLuminosityPipeline

using impeller::FramebufferBlendLuminosityPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 236 of file content_context.h.

## ◆ FramebufferBlendMultiplyPipeline

using impeller::FramebufferBlendMultiplyPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 239 of file content_context.h.

## ◆ FramebufferBlendOverlayPipeline

using impeller::FramebufferBlendOverlayPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 242 of file content_context.h.

## ◆ FramebufferBlendSaturationPipeline

using impeller::FramebufferBlendSaturationPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 245 of file content_context.h.

## ◆ FramebufferBlendScreenPipeline

using impeller::FramebufferBlendScreenPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 248 of file content_context.h.

## ◆ FramebufferBlendSoftLightPipeline

using impeller::FramebufferBlendSoftLightPipeline = typedef RenderPipelineT<FramebufferBlendVertexShader, FramebufferBlendFragmentShader>

Definition at line 251 of file content_context.h.

## ◆ GaussianBlurDecalPipeline

using impeller::GaussianBlurDecalPipeline = typedef RenderPipelineT<GaussianBlurVertexShader, GaussianBlurNoalphaDecalFragmentShader>

Definition at line 138 of file content_context.h.

## ◆ GaussianBlurFragmentShader

using impeller::GaussianBlurFragmentShader = typedef KernelPipeline::FragmentShader

Definition at line 19 of file gaussian_blur_filter_contents.cc.

## ◆ GaussianBlurPipeline

using impeller::GaussianBlurPipeline = typedef RenderPipelineT<GaussianBlurVertexShader, GaussianBlurNoalphaNodecalFragmentShader>

Definition at line 141 of file content_context.h.

## ◆ GaussianBlurVertexShader

using impeller::GaussianBlurVertexShader = typedef KernelPipeline::VertexShader

Definition at line 18 of file gaussian_blur_filter_contents.cc.

## ◆ GeometryColorPipeline

using impeller::GeometryColorPipeline = typedef RenderPipelineT<PositionColorVertexShader, VerticesFragmentShader>

Definition at line 171 of file content_context.h.

## ◆ GlyphAtlasColorPipeline

using impeller::GlyphAtlasColorPipeline = typedef RenderPipelineT<GlyphAtlasVertexShader, GlyphAtlasColorFragmentShader>

Definition at line 163 of file content_context.h.

## ◆ GlyphAtlasPipeline

using impeller::GlyphAtlasPipeline = typedef RenderPipelineT<GlyphAtlasVertexShader, GlyphAtlasFragmentShader>

Definition at line 161 of file content_context.h.

## ◆ IPoint

using impeller::IPoint = typedef TPoint<int64_t>

Definition at line 309 of file point.h.

## ◆ IPoint32

using impeller::IPoint32 = typedef TPoint<int32_t>

Definition at line 310 of file point.h.

## ◆ IRect

using impeller::IRect = typedef TRect<int64_t>

Definition at line 489 of file rect.h.

## ◆ ISize

using impeller::ISize = typedef TSize<int64_t>

Definition at line 138 of file size.h.

## ◆ KernelDecalPipeline

using impeller::KernelDecalPipeline = typedef RenderPipelineT<GaussianBlurVertexShader, KernelDecalFragmentShader>

Definition at line 143 of file content_context.h.

## ◆ KernelPipeline

using impeller::KernelPipeline = typedef RenderPipelineT<GaussianBlurVertexShader, KernelNodecalFragmentShader>

Definition at line 145 of file content_context.h.

## ◆ LinearGradientFillPipeline

using impeller::LinearGradientFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, LinearGradientFillFragmentShader>

Definition at line 105 of file content_context.h.

## ◆ LinearGradientSSBOFillPipeline

using impeller::LinearGradientSSBOFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, LinearGradientSsboFillFragmentShader>

Definition at line 117 of file content_context.h.

## ◆ LinearToSrgbFilterPipeline

using impeller::LinearToSrgbFilterPipeline = typedef RenderPipelineT<LinearToSrgbFilterVertexShader, LinearToSrgbFilterFragmentShader>

Definition at line 156 of file content_context.h.

## ◆ MillisecondsF

using impeller::MillisecondsF = typedef std::chrono::duration<float, std::milli>

Definition at line 12 of file timing.h.

## ◆ MixedOp

template<class F , class I >

using impeller::MixedOp = typedef typename MixedOp_<F, I>::type

Definition at line 19 of file type_traits.h.

## ◆ MorphologyFilterPipeline

using impeller::MorphologyFilterPipeline = typedef RenderPipelineT<MorphologyFilterVertexShader, MorphologyFilterFragmentShader>

Definition at line 150 of file content_context.h.

## ◆ PathComponentVariant

using impeller::PathComponentVariant = typedef std::variant<std::monostate, const LinearPathComponent*, const QuadraticPathComponent*, const CubicPathComponent*>

Definition at line 163 of file path_component.h.

## ◆ PipelineMap

using impeller::PipelineMap = typedef std::unordered_map<PipelineDescriptor, PipelineFuture<PipelineDescriptor>, ComparableHash<PipelineDescriptor>, ComparableEqual<PipelineDescriptor> >

Definition at line 22 of file pipeline_library.h.

## ◆ PipelineProc

using impeller::PipelineProc = typedef std::shared_ptr<Pipeline<PipelineDescriptor> > ( ContentContext::*)(ContentContextOptions) const

Definition at line 68 of file blend_filter_contents.cc.

## ◆ Point

using impeller::Point = typedef TPoint<Scalar>

Definition at line 308 of file point.h.

## ◆ PointsComputeShaderPipeline

using impeller::PointsComputeShaderPipeline = typedef ComputePipelineBuilder<PointsComputeShader>

Geometry Pipelines.

Definition at line 254 of file content_context.h.

## ◆ PorterDuffBlendPipeline

using impeller::PorterDuffBlendPipeline = typedef RenderPipelineT<PorterDuffBlendVertexShader, PorterDuffBlendFragmentShader>

Definition at line 165 of file content_context.h.

## ◆ PositionUVPipeline

using impeller::PositionUVPipeline = typedef RenderPipelineT<TextureFillVertexShader, TiledTextureFillFragmentShader>

Definition at line 133 of file content_context.h.

## ◆ PrimaryKey

using impeller::PrimaryKey = typedef std::optional<int64_t>

Definition at line 22 of file archivable.h.

## ◆ Quad

using impeller::Quad = typedef std::array<Point, 4>

Definition at line 313 of file point.h.

## ◆ RadialGradientFillPipeline

using impeller::RadialGradientFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, RadialGradientFillFragmentShader>

Definition at line 109 of file content_context.h.

## ◆ RadialGradientSSBOFillPipeline

using impeller::RadialGradientSSBOFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, RadialGradientSsboFillFragmentShader>

Definition at line 123 of file content_context.h.

## ◆ Rect

using impeller::Rect = typedef TRect<Scalar>

Definition at line 488 of file rect.h.

## ◆ RRectBlurPipeline

using impeller::RRectBlurPipeline = typedef RenderPipelineT<RrectBlurVertexShader, RrectBlurFragmentShader>

Definition at line 128 of file content_context.h.

## ◆ SamplerMap

using impeller::SamplerMap = typedef std::unordered_map<SamplerDescriptor, std::shared_ptr<const Sampler>, ComparableHash<SamplerDescriptor>, ComparableEqual<SamplerDescriptor> >

Definition at line 37 of file sampler.h.

## ◆ Scalar

using impeller::Scalar = typedef float

Definition at line 18 of file scalar.h.

## ◆ SecondsF

using impeller::SecondsF = typedef std::chrono::duration<float>

Definition at line 13 of file timing.h.

## ◆ ShaderFunctionMap

using impeller::ShaderFunctionMap = typedef std::unordered_map<ShaderKey, std::shared_ptr<const ShaderFunction>, ShaderKey::Hash, ShaderKey::Equal>

Definition at line 44 of file shader_key.h.

## ◆ SharedHandleVK

template<class T >

using impeller::SharedHandleVK = typedef std::shared_ptr<SharedObjectVKT<T> >

Definition at line 52 of file shared_object_vk.h.

## ◆ Size

using impeller::Size = typedef TSize<Scalar>

Definition at line 137 of file size.h.

## ◆ SolidFillPipeline

using impeller::SolidFillPipeline = typedef RenderPipelineT<SolidFillVertexShader, SolidFillFragmentShader>

Definition at line 107 of file content_context.h.

## ◆ SrgbToLinearFilterPipeline

using impeller::SrgbToLinearFilterPipeline = typedef RenderPipelineT<SrgbToLinearFilterVertexShader, SrgbToLinearFilterFragmentShader>

Definition at line 159 of file content_context.h.

## ◆ SweepGradientFillPipeline

using impeller::SweepGradientFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, SweepGradientFillFragmentShader>

Definition at line 114 of file content_context.h.

## ◆ SweepGradientSSBOFillPipeline

using impeller::SweepGradientSSBOFillPipeline = typedef RenderPipelineT<GradientFillVertexShader, SweepGradientSsboFillFragmentShader>

Definition at line 126 of file content_context.h.

## ◆ TessellatedVertexProc

using impeller::TessellatedVertexProc = typedef Tessellator::TessellatedVertexProc

Definition at line 376 of file tessellator.cc.

## ◆ TexturePipeline

using impeller::TexturePipeline = typedef RenderPipelineT<TextureFillVertexShader, TextureFillFragmentShader>

Definition at line 131 of file content_context.h.

## ◆ TextureResource

using impeller::TextureResource = typedef Resource<std::shared_ptr<const Texture> >

Definition at line 58 of file command.h.

## ◆ TextureUsageMask

using impeller::TextureUsageMask = typedef uint64_t

Definition at line 295 of file formats.h.

## ◆ TiledTexturePipeline

using impeller::TiledTexturePipeline = typedef RenderPipelineT<TextureFillVertexShader, TiledTextureFillFragmentShader>

Definition at line 135 of file content_context.h.

## ◆ TimePoint

using impeller::TimePoint = typedef std::chrono::time_point<std::chrono::high_resolution_clock>

Definition at line 15 of file timing.h.

## ◆ UintPoint32

using impeller::UintPoint32 = typedef TPoint<uint32_t>

Definition at line 311 of file point.h.

## ◆ UniqueAllocatorVMA

using impeller::UniqueAllocatorVMA = typedef fml::UniqueObject<VmaAllocator, AllocatorVMATraits>

Definition at line 31 of file vma.h.

## ◆ UniqueBufferVMA

using impeller::UniqueBufferVMA = typedef fml::UniqueObject<BufferVMA, BufferVMATraits>

Definition at line 98 of file vma.h.

## ◆ UniqueEGLImage

using impeller::UniqueEGLImage = typedef fml::UniqueObject<EGLImageWithDisplay, EGLImageWithDisplayTraits>

Definition at line 42 of file image.h.

## ◆ UniqueEGLImageKHR

using impeller::UniqueEGLImageKHR = typedef fml::UniqueObject<EGLImageKHRWithDisplay, EGLImageKHRWithDisplayTraits>

Definition at line 73 of file image.h.

## ◆ UniqueGLTexture

using impeller::UniqueGLTexture = typedef fml::UniqueObject<GLTexture, GLTextureTraits>

Definition at line 38 of file texture.h.

## ◆ UniqueImageVMA

using impeller::UniqueImageVMA = typedef fml::UniqueObject<ImageVMA, ImageVMATraits>

Definition at line 133 of file vma.h.

## ◆ UniquePoolVMA

using impeller::UniquePoolVMA = typedef fml::UniqueObject<PoolVMA, PoolVMATraits>

Definition at line 63 of file vma.h.

## ◆ UvComputeShaderPipeline

using impeller::UvComputeShaderPipeline = typedef ComputePipelineBuilder<UvComputeShader>

Definition at line 255 of file content_context.h.

## ◆ Vector2

using impeller::Vector2 = typedef Point

Definition at line 312 of file point.h.

## ◆ WaitSet

using impeller::WaitSet = typedef std::vector<std::shared_ptr<WaitSetEntry> >

Definition at line 25 of file fence_waiter_vk.h.

## ◆ YUVToRGBFilterPipeline

using impeller::YUVToRGBFilterPipeline = typedef RenderPipelineT<YuvToRgbFilterVertexShader, YuvToRgbFilterFragmentShader>

Definition at line 173 of file content_context.h.

## Enumeration Type Documentation

## ◆ ArchiveRenderingBackend

enum impeller::ArchiveRenderingBackend
| strong

Enumerator
kMetal |
kVulkan |
kOpenGLES |

Definition at line 16 of file shader_archive_types.h.

16 {
17 kMetal,
18 kVulkan,
19 kOpenGLES,
20 };

## ◆ ArchiveShaderType

enum impeller::ArchiveShaderType
| strong

Enumerator
kVertex |
kFragment |
kCompute |

Definition at line 10 of file shader_archive_types.h.

10 {
11 kVertex,
12 kFragment,
13 kCompute,
14 };

## ◆ AttachmentKind

enum impeller::AttachmentKind
| strong

Enumerator
kColor |
kDepth |
kStencil |
kDepthStencil |

Definition at line 397 of file formats_vk.h.

397 {
398 kColor,
399 kDepth,
400 kStencil,
401 kDepthStencil,
402 };

## ◆ BlendFactor

enum impeller::BlendFactor
| strong

Enumerator
kZero |
kOne |
kSourceColor |
kOneMinusSourceColor |
kSourceAlpha |
kOneMinusSourceAlpha |
kDestinationColor |
kOneMinusDestinationColor |
kDestinationAlpha |
kOneMinusDestinationAlpha |
kSourceAlphaSaturated |
kBlendColor |
kOneMinusBlendColor |
kBlendAlpha |
kOneMinusBlendAlpha |

Definition at line 173 of file formats.h.

173 {
174 kZero,
175 kOne,
176 kSourceColor,
177 kOneMinusSourceColor,
178 kSourceAlpha,
179 kOneMinusSourceAlpha,
180 kDestinationColor,
181 kOneMinusDestinationColor,
182 kDestinationAlpha,
183 kOneMinusDestinationAlpha,
184 kSourceAlphaSaturated,
185 kBlendColor,
186 kOneMinusBlendColor,
187 kBlendAlpha,
188 kOneMinusBlendAlpha,
189 };

## ◆ BlendMode

enum impeller::BlendMode : uint8_t
| strong

All blend modes assume that both the source (fragment output) and destination (first color attachment) have colors with premultiplied alpha.

Enumerator
kClear |
kSource |
kDestination |
kSourceOver |
kDestinationOver |
kSourceIn |
kDestinationIn |
kSourceOut |
kDestinationOut |
kSourceATop |
kDestinationATop |
kXor |
kPlus |
kModulate |
kScreen |
kOverlay |
kDarken |
kLighten |
kColorDodge |
kColorBurn |
kHardLight |
kSoftLight |
kDifference |
kExclusion |
kMultiply |
kHue |
kSaturation |
kColor |
kLuminosity |
kLast |

Definition at line 59 of file color.h.

59 : uint8_t {
60 // The following blend modes are able to be used as pipeline blend modes or
61 // via `BlendFilterContents`.
62 kClear = 0,
63 kSource,
64 kDestination,
65 kSourceOver,
66 kDestinationOver,
67 kSourceIn,
68 kDestinationIn,
69 kSourceOut,
70 kDestinationOut,
71 kSourceATop,
72 kDestinationATop,
73 kXor,
74 kPlus,
75 kModulate,
76
77 // The following blend modes use equations that are not available for
78 // pipelines on most graphics devices without extensions, and so they are
79 // only able to be used via `BlendFilterContents`.
80 kScreen,
81 kOverlay,
82 kDarken,
83 kLighten,
84 kColorDodge,
85 kColorBurn,
86 kHardLight,
87 kSoftLight,
88 kDifference,
89 kExclusion,
90 kMultiply,
91 kHue,
92 kSaturation,
93 kColor,
94 kLuminosity,
95
96 kLast = kLuminosity,
97 };

## ◆ BlendOperation

enum impeller::BlendOperation
| strong

Enumerator
kAdd |
kSubtract |
kReverseSubtract |

Definition at line 191 of file formats.h.

191 {
192 kAdd,
193 kSubtract,
194 kReverseSubtract,
195 };

## ◆ BlendSelectValues

enum impeller::BlendSelectValues
| strong

Enumerator
kScreen |
kOverlay |
kDarken |
kLighten |
kColorDodge |
kColorBurn |
kHardLight |
kSoftLight |
kDifference |
kExclusion |
kMultiply |
kHue |
kSaturation |
kColor |
kLuminosity |

Definition at line 15 of file framebuffer_blend_contents.h.

15 {
16 kScreen = 0,
17 kOverlay,
18 kDarken,
19 kLighten,
20 kColorDodge,
21 kColorBurn,
22 kHardLight,
23 kSoftLight,
24 kDifference,
25 kExclusion,
26 kMultiply,
27 kHue,
28 kSaturation,
29 kColor,
30 kLuminosity,
31 };

## ◆ CanvasRecorderOp

enum impeller::CanvasRecorderOp : uint16_t

TODO(tbd): These are very similar to `flutter::DisplayListOpType`. When golden tests can be written at a higher level, migrate these to flutter::DisplayListOpType.

Enumerator
kNew |
kSave |
kSaveLayer |
kRestore |
kRestoreToCount |
kResetTransform |
kTransform |
kConcat |
kPreConcat |
kTranslate |
kScale2 |
kScale3 |
kSkew |
kRotate |
kDrawPath |
kDrawPaint |
kDrawRect |
kDrawRRect |
kDrawCircle |
kDrawPoints |
kDrawImage |
kDrawImageRect |
kClipPath |
kClipRect |
kClipRRect |
kDrawPicture |
kDrawTextFrame |
kDrawVertices |
kDrawAtlas |

Definition at line 19 of file canvas_recorder.h.

19 : uint16_t {
20 kNew,
21 kSave,
22 kSaveLayer,
23 kRestore,
24 kRestoreToCount,
25 kResetTransform,
26 kTransform,
27 kConcat,
28 kPreConcat,
29 kTranslate,
30 kScale2,
31 kScale3,
32 kSkew,
33 kRotate,
34 kDrawPath,
35 kDrawPaint,
36 kDrawRect,
37 kDrawRRect,
38 kDrawCircle,
39 kDrawPoints,
40 kDrawImage,
41 kDrawImageRect,
42 kClipPath,
43 kClipRect,
44 kClipRRect,
45 kDrawPicture,
46 kDrawTextFrame,
47 kDrawVertices,
48 kDrawAtlas,
49 };

## ◆ Cap

enum impeller::Cap
| strong

Enumerator
kButt |
kRound |
kSquare |

Definition at line 18 of file path.h.

18 {
19 kButt,
20 kRound,
21 kSquare,
22 };

## ◆ ColorWriteMask

enum impeller::ColorWriteMask : uint64_t
| strong

Enumerator
kNone |
kRed |
kGreen |
kBlue |
kAlpha |
kAll |

Definition at line 433 of file formats.h.

433 : uint64_t {
434 kNone = 0,
435 kRed = 1 << 0,
436 kGreen = 1 << 1,
437 kBlue = 1 << 2,
438 kAlpha = 1 << 3,
439 kAll = kRed | kGreen | kBlue | kAlpha,
440 };

## ◆ CompareFunction

enum impeller::CompareFunction : uint8_t
| strong

Enumerator
kNever | Comparison test never passes.
kAlways | Comparison test passes always passes.
kLess | Comparison test passes if new_value < current_value.
kEqual | Comparison test passes if new_value == current_value.
kLessEqual | Comparison test passes if new_value <= current_value.
kGreater | Comparison test passes if new_value > current_value.
kNotEqual | Comparison test passes if new_value != current_value.
kGreaterEqual | Comparison test passes if new_value >= current_value.

Definition at line 529 of file formats.h.

529 : uint8_t {
530 /// Comparison test never passes.
531 kNever,
532 /// Comparison test passes always passes.
533 kAlways,
534 /// Comparison test passes if new_value < current_value.
535 kLess,
536 /// Comparison test passes if new_value == current_value.
537 kEqual,
538 /// Comparison test passes if new_value <= current_value.
539 kLessEqual,
540 /// Comparison test passes if new_value > current_value.
541 kGreater,
542 /// Comparison test passes if new_value != current_value.
543 kNotEqual,
544 /// Comparison test passes if new_value >= current_value.
545 kGreaterEqual,
546 };

## ◆ CompressionType

enum impeller::CompressionType
| strong

Additional compression to apply to a texture. This value is ignored on platforms which do not support it.

Lossy compression is only supported on iOS 15+ on A15 chips.

Enumerator
kLossless |
kLossy |

Definition at line 18 of file texture_descriptor.h.

18 {
19 kLossless,
20 kLossy,
21 };

## ◆ Convexity

enum impeller::Convexity
| strong

Enumerator
kUnknown |
kConvex |

Definition at line 38 of file path.h.

38 {
39 kUnknown,
40 kConvex,
41 };

## ◆ CullMode

enum impeller::CullMode
| strong

Enumerator
kNone |
kFrontFace |
kBackFace |

Definition at line 335 of file formats.h.

335 {
336 kNone,
337 kFrontFace,
338 kBackFace,
339 };

## ◆ DebugResourceType

enum impeller::DebugResourceType
| strong

Enumerator
kTexture |
kBuffer |
kProgram |
kShader |
kRenderBuffer |
kFrameBuffer |

Definition at line 208 of file proc_table_gles.h.

208 {
209 kTexture,
210 kBuffer,
211 kProgram,
212 kShader,
213 kRenderBuffer,
214 kFrameBuffer,
215 };

## ◆ DescriptorType

enum impeller::DescriptorType
| strong

Enumerator
kUniformBuffer |
kStorageBuffer |
kSampledImage |
kImage |
kSampler |
kInputAttachment |

Definition at line 153 of file shader_types.h.

153 {
154 kUniformBuffer,
155 kStorageBuffer,
156 kSampledImage,
157 kImage,
158 kSampler,
159 kInputAttachment,
160 };

## ◆ FillType

enum impeller::FillType
| strong

Enumerator
kNonZero |
kOdd |
kPositive |
kNegative |
kAbsGeqTwo |

Definition at line 30 of file path.h.

30 {
31 kNonZero, // The default winding order.
32 kOdd,
33 kPositive,
34 kNegative,
35 kAbsGeqTwo,
36 };

## ◆ GeometryVertexType

enum impeller::GeometryVertexType

Enumerator
kPosition |
kColor |
kColor |
kUV |

Definition at line 34 of file geometry.h.

34 {
35 kPosition,
36 kColor,
37 kUV,
38 };

## ◆ HandleType

enum impeller::HandleType
| strong

Enumerator
kUnknown |
kTexture |
kBuffer |
kProgram |
kRenderBuffer |
kFrameBuffer |

Definition at line 22 of file handle_gles.h.

22 {
23 kUnknown,
24 kTexture,
25 kBuffer,
26 kProgram,
27 kRenderBuffer,
28 kFrameBuffer,
29 };

## ◆ IndexType

enum impeller::IndexType
| strong

Enumerator
kUnknown |
k16bit |
k32bit |
kNone | Does not use the index buffer.

Definition at line 341 of file formats.h.

341 {
342 kUnknown,
343 k16bit,
344 k32bit,
345 /// Does not use the index buffer.
346 kNone,
347 };

## ◆ Join

enum impeller::Join
| strong

Enumerator
kMiter |
kRound |
kBevel |

Definition at line 24 of file path.h.

24 {
25 kMiter,
26 kRound,
27 kBevel,
28 };

## ◆ LoadAction

enum impeller::LoadAction
| strong

Enumerator
kDontCare |
kLoad |
kClear |

Definition at line 197 of file formats.h.

197 {
198 kDontCare,
199 kLoad,
200 kClear,
201 };

## ◆ MinMagFilter

enum impeller::MinMagFilter
| strong

Enumerator
kNearest | Select nearest to the sample point. Most widely supported.
kLinear | Select two points and linearly interpolate between them. Some formats may not support this.

Definition at line 404 of file formats.h.

404 {
405 /// Select nearest to the sample point. Most widely supported.
406 kNearest,
407 /// Select two points and linearly interpolate between them. Some formats
408 /// may not support this.
409 kLinear,
410 };

## ◆ MipFilter

enum impeller::MipFilter
| strong

Enumerator
kNearest | Sample from the nearest mip level.
kLinear | Sample from the two nearest mip levels and linearly interpolate between them.

Definition at line 412 of file formats.h.

412 {
413 /// Sample from the nearest mip level.
414 kNearest,
415 /// Sample from the two nearest mip levels and linearly interpolate between
416 /// them.
417 kLinear,
418 };

## ◆ OptionalDeviceExtensionVK

enum impeller::OptionalDeviceExtensionVK : uint32_t
| strong

Enumerator
kEXTPipelineCreationFeedback |
kARMRasterizationOrderAttachmentAccess |
kEXTRasterizationOrderAttachmentAccess |
kLast |

Definition at line 22 of file capabilities_vk.h.

22 : uint32_t {
23 // https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_pipeline_creation_feedback.html
24 kEXTPipelineCreationFeedback,
25 kARMRasterizationOrderAttachmentAccess,
26 kEXTRasterizationOrderAttachmentAccess,
27 kLast,
28 };

## ◆ PixelFormat

enum impeller::PixelFormat : uint8_t
| strong

The Pixel formats supported by Impeller. The naming convention denotes the usage of the component, the bit width of that component, and then one or more qualifiers to its interpretation.

For instance, `kR8G8B8A8UNormIntSRGB` is a 32 bits-per-pixel format ordered in RGBA with 8 bits per component with each component expressed as an unsigned normalized integer and a conversion from sRGB to linear color space.

Key: R -> Red Component G -> Green Component B -> Blue Component D -> Depth Component S -> Stencil Component U -> Unsigned (Lack of this denotes a signed component) Norm -> Normalized SRGB -> sRGB to linear interpretation

While the effective bit width of the pixel can be determined by adding up the widths of each component, only the non-esoteric formats are tightly packed. Do not assume tight packing for the esoteric formats and use blit passes to convert to a non-esoteric pass.

Enumerator
kUnknown |
kA8UNormInt |
kR8UNormInt |
kR8G8UNormInt |
kR8G8B8A8UNormInt |
kR8G8B8A8UNormIntSRGB |
kB8G8R8A8UNormInt |
kB8G8R8A8UNormIntSRGB |
kR32G32B32A32Float |
kR16G16B16A16Float |
kB10G10R10XR |
kB10G10R10XRSRGB |
kB10G10R10A10XR |
kS8UInt |
kD24UnormS8Uint |
kD32FloatS8UInt |

Definition at line 94 of file formats.h.

94 : uint8_t {
95 kUnknown,
96 kA8UNormInt,
97 kR8UNormInt,
98 kR8G8UNormInt,
99 kR8G8B8A8UNormInt,
100 kR8G8B8A8UNormIntSRGB,
101 kB8G8R8A8UNormInt,
102 kB8G8R8A8UNormIntSRGB,
103 kR32G32B32A32Float,
104 kR16G16B16A16Float,
105 kB10G10R10XR,
106 kB10G10R10XRSRGB,
107 kB10G10R10A10XR,
108 // Depth and stencil formats.
109 kS8UInt,
110 kD24UnormS8Uint,
111 kD32FloatS8UInt,
112 };

## ◆ PlaygroundBackend

enum impeller::PlaygroundBackend
| strong

Enumerator
kMetal |
kOpenGLES |
kVulkan |

Definition at line 29 of file playground.h.

29 {
30 kMetal,
31 kOpenGLES,
32 kVulkan,
33 };

## ◆ PointStyle

enum impeller::PointStyle
| strong

Enumerator
kRound | Points are drawn as squares.
kSquare | Points are drawn as circles.

Definition at line 40 of file canvas.h.

40 {
41 /// @brief Points are drawn as squares.
42 kRound,
43
44 /// @brief Points are drawn as circles.
45 kSquare,
46 };

## ◆ PolygonMode

enum impeller::PolygonMode
| strong

Enumerator
kFill |
kLine |

Definition at line 381 of file formats.h.

381 {
382 kFill,
383 kLine,
384 };

## ◆ PrimitiveType

enum impeller::PrimitiveType : uint8_t
| strong

Decides how backend draws pixels based on input vertices.

Enumerator
kTriangle | Draws a triage for each separate set of three vertices. Vertices [A, B, C, D, E, F] will produce triages [ABC, DEF].
kTriangleStrip | Draws a triage for every adjacent three vertices. Vertices [A, B, C, D, E, F] will produce triages [ABC, BCD, CDE, DEF].
kLine | Draws a line for each separate set of two vertices. Vertices [A, B, C] will produce discontinued line [AB, BC].
kLineStrip | Draws a continuous line that connect every input vertices Vertices [A, B, C] will produce one continuous line [ABC].
kPoint | Draws a point at each input vertex.

Definition at line 350 of file formats.h.

350 : uint8_t {
351 /// Draws a triage for each separate set of three vertices.
352 ///
353 /// Vertices [A, B, C, D, E, F] will produce triages
354 /// [ABC, DEF].
355 kTriangle,
356
357 /// Draws a triage for every adjacent three vertices.
358 ///
359 /// Vertices [A, B, C, D, E, F] will produce triages
360 /// [ABC, BCD, CDE, DEF].
361 kTriangleStrip,
362
363 /// Draws a line for each separate set of two vertices.
364 ///
365 /// Vertices [A, B, C] will produce discontinued line
366 /// [AB, BC].
367 kLine,
368
369 /// Draws a continuous line that connect every input vertices
370 ///
371 /// Vertices [A, B, C] will produce one continuous line
372 /// [ABC].
373 kLineStrip,
374
375 /// Draws a point at each input vertex.
376 kPoint,
377 // Triangle fans are implementation dependent and need extra extensions
378 // checks. Hence, they are not supported here.
379 };

## ◆ RuntimeShaderStage

enum impeller::RuntimeShaderStage
| strong

Enumerator
kVertex |
kFragment |
kCompute |

Definition at line 37 of file runtime_types.h.

37 {
38 kVertex,
39 kFragment,
40 kCompute,
41 };

## ◆ RuntimeStageBackend

enum impeller::RuntimeStageBackend
| strong

Enumerator
kSkSL |
kMetal |
kOpenGLES |
kVulkan |

Definition at line 14 of file runtime_types.h.

14 {
15 kSkSL,
16 kMetal,
17 kOpenGLES,
18 kVulkan,
19 };

## ◆ RuntimeUniformType

enum impeller::RuntimeUniformType

Enumerator
kBoolean |
kSignedByte |
kUnsignedByte |
kSignedShort |
kUnsignedShort |
kSignedInt |
kUnsignedInt |
kSignedInt64 |
kUnsignedInt64 |
kHalfFloat |
kFloat |
kDouble |
kSampledImage |

Definition at line 21 of file runtime_types.h.

21 {
22 kBoolean,
23 kSignedByte,
24 kUnsignedByte,
25 kSignedShort,
26 kUnsignedShort,
27 kSignedInt,
28 kUnsignedInt,
29 kSignedInt64,
30 kUnsignedInt64,
31 kHalfFloat,
32 kFloat,
33 kDouble,
34 kSampledImage,
35 };

## ◆ SampleCount

enum impeller::SampleCount : uint8_t
| strong

Enumerator
kCount1 |
kCount4 |

Definition at line 290 of file formats.h.

290 : uint8_t {
291 kCount1 = 1,
292 kCount4 = 4,
293 };

## ◆ SamplerAddressMode

enum impeller::SamplerAddressMode
| strong

Enumerator
kClampToEdge |
kRepeat |
kMirror |
kDecal | decal sampling mode is only supported on devices that pass the `Capabilities.SupportsDecalSamplerAddressMode` check.

Definition at line 420 of file formats.h.

420 {
421 kClampToEdge,
422 kRepeat,
423 kMirror,
424 // More modes are almost always supported but they are usually behind
425 // extensions checks. The ones current in these structs are safe (always
426 // supported) defaults.
427
428 /// @brief decal sampling mode is only supported on devices that pass
429 /// the `Capabilities.SupportsDecalSamplerAddressMode` check.
430 kDecal,
431 };

## ◆ ShaderStage

enum impeller::ShaderStage
| strong

Enumerator
kUnknown |
kVertex |
kFragment |
kCompute |

Definition at line 22 of file shader_types.h.

22 {
23 kUnknown,
24 kVertex,
25 kFragment,
26 kCompute,
27 };

## ◆ ShaderType

enum impeller::ShaderType
| strong

Enumerator
kUnknown |
kVoid |
kBoolean |
kSignedByte |
kUnsignedByte |
kSignedShort |
kUnsignedShort |
kSignedInt |
kUnsignedInt |
kSignedInt64 |
kUnsignedInt64 |
kAtomicCounter |
kHalfFloat |
kFloat |
kDouble |
kStruct |
kImage |
kSampledImage |
kSampler |

Definition at line 41 of file shader_types.h.

41 {
42 kUnknown,
43 kVoid,
44 kBoolean,
45 kSignedByte,
46 kUnsignedByte,
47 kSignedShort,
48 kUnsignedShort,
49 kSignedInt,
50 kUnsignedInt,
51 kSignedInt64,
52 kUnsignedInt64,
53 kAtomicCounter,
54 kHalfFloat,
55 kFloat,
56 kDouble,
57 kStruct,
58 kImage,
59 kSampledImage,
60 kSampler,
61 };

## ◆ StencilOperation

enum impeller::StencilOperation : uint8_t
| strong

Enumerator
kKeep | Don't modify the current stencil value.
kZero | Reset the stencil value to zero.
kSetToReferenceValue | Reset the stencil value to the reference value.
kIncrementClamp | Increment the current stencil value by 1. Clamp it to the maximum.
kDecrementClamp | Decrement the current stencil value by 1. Clamp it to zero.
kInvert | Perform a logical bitwise invert on the current stencil value.
kIncrementWrap | Increment the current stencil value by 1. If at maximum, set to zero.
kDecrementWrap | Decrement the current stencil value by 1. If at zero, set to maximum.

Definition at line 548 of file formats.h.

548 : uint8_t {
549 /// Don't modify the current stencil value.
550 kKeep,
551 /// Reset the stencil value to zero.
552 kZero,
553 /// Reset the stencil value to the reference value.
554 kSetToReferenceValue,
555 /// Increment the current stencil value by 1. Clamp it to the maximum.
556 kIncrementClamp,
557 /// Decrement the current stencil value by 1. Clamp it to zero.
558 kDecrementClamp,
559 /// Perform a logical bitwise invert on the current stencil value.
560 kInvert,
561 /// Increment the current stencil value by 1. If at maximum, set to zero.
562 kIncrementWrap,
563 /// Decrement the current stencil value by 1. If at zero, set to maximum.
564 kDecrementWrap,
565 };

## ◆ StorageMode

enum impeller::StorageMode
| strong

Specified where the allocation resides and how it is used.

Enumerator
kHostVisible | Allocations can be mapped onto the hosts address space and also be used by the device.
kDevicePrivate | Allocations can only be used by the device. This location is optimal for use by the device. If the host needs to access these allocations, the transfer queue must be used to transfer this allocation onto the a host visible buffer.
kDeviceTransient | Used by the device for temporary render targets. These allocations cannot be transferred from and to other allocations using the transfer queue. Render pass cannot initialize the contents of these buffers using load and store actions. These allocations reside in tile memory which has higher bandwidth, lower latency and lower power consumption. The total device memory usage is also lower as a separate allocation does not need to be created in device memory. Prefer using these allocations for intermediates like depth and stencil buffers.

Definition at line 27 of file formats.h.

27 {
28 //----------------------------------------------------------------------------
29 /// Allocations can be mapped onto the hosts address space and also be used by
30 /// the device.
31 ///
32 kHostVisible,
33 //----------------------------------------------------------------------------
34 /// Allocations can only be used by the device. This location is optimal for
35 /// use by the device. If the host needs to access these allocations, the
36 /// transfer queue must be used to transfer this allocation onto the a host
37 /// visible buffer.
38 ///
39 kDevicePrivate,
40 //----------------------------------------------------------------------------
41 /// Used by the device for temporary render targets. These allocations cannot
42 /// be transferred from and to other allocations using the transfer queue.
43 /// Render pass cannot initialize the contents of these buffers using load and
44 /// store actions.
45 ///
46 /// These allocations reside in tile memory which has higher bandwidth, lower
47 /// latency and lower power consumption. The total device memory usage is
48 /// also lower as a separate allocation does not need to be created in
49 /// device memory. Prefer using these allocations for intermediates like depth
50 /// and stencil buffers.
51 ///
52 kDeviceTransient,
53 };

## ◆ StoreAction

enum impeller::StoreAction
| strong

Enumerator
kDontCare |
kStore |
kMultisampleResolve |
kStoreAndMultisampleResolve |

Definition at line 203 of file formats.h.

203 {
204 kDontCare,
205 kStore,
206 kMultisampleResolve,
207 kStoreAndMultisampleResolve,
208 };

## ◆ TextureCoordinateSystem

enum impeller::TextureCoordinateSystem
| strong

Enumerator
kUploadFromHost |
kRenderToTexture |

Definition at line 325 of file formats.h.

325 {
326 // Alternative coordinate system used when uploading texture data from the
327 // host.
328 // (0, 0) is the bottom-left of the image with +Y going up.
329 kUploadFromHost,
330 // Default coordinate system.
331 // (0, 0) is the top-left of the image with +Y going down.
332 kRenderToTexture,
333 };

## ◆ TextureType

enum impeller::TextureType
| strong

Enumerator
kTexture2D |
kTexture2DMultisample |
kTextureCube |
kTextureExternalOES |

Definition at line 257 of file formats.h.

257 {
258 kTexture2D,
259 kTexture2DMultisample,
260 kTextureCube,
261 kTextureExternalOES,
262 };

## ◆ TextureUsage

enum impeller::TextureUsage : TextureUsageMask
| strong

Enumerator
kUnknown |
kShaderRead |
kShaderWrite |
kRenderTarget |

Definition at line 297 of file formats.h.

297 : TextureUsageMask {
298 kUnknown = 0,
299 kShaderRead = 1 << 0,
300 kShaderWrite = 1 << 1,
301 kRenderTarget = 1 << 2,
302 };

## ◆ UseSubpassInput

enum impeller::UseSubpassInput
| strong

Enumerator
kYes |
kNo |

Definition at line 24 of file pipeline_descriptor.h.

24 {
25 kYes,
26 kNo,
27 };

## ◆ WindingOrder

enum impeller::WindingOrder
| strong

Enumerator
kClockwise |
kCounterClockwise |

Definition at line 27 of file tessellator.h.

27 {
28 kClockwise,
29 kCounterClockwise,
30 };

## ◆ YUVColorSpace

enum impeller::YUVColorSpace
| strong

Enumerator
kBT601LimitedRange |
kBT601FullRange |

Definition at line 55 of file color.h.

55 { kBT601LimitedRange, kBT601FullRange };

## Function Documentation

## ◆ _FOR_EACH_CAPTURE_PROPERTY() [1/3]

impeller::_FOR_EACH_CAPTURE_PROPERTY | ( | _CAPTURE_PROPERTY_CAST_DEFINITION |  | ) |

## ◆ _FOR_EACH_CAPTURE_PROPERTY() [2/3]

impeller::_FOR_EACH_CAPTURE_PROPERTY | ( | _CAPTURE_PROPERTY_DECLARATION |  | ) |

## ◆ _FOR_EACH_CAPTURE_PROPERTY() [3/3]

impeller::_FOR_EACH_CAPTURE_PROPERTY | ( | _CAPTURE_PROPERTY_DEFINITION |  | ) |

## ◆ Absolute()

template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>

constexpr T impeller::Absolute | ( | const T & | val | ) |
| constexpr

Definition at line 21 of file scalar.h.

21 {
22 return val >= T{} ? val : -val;
23 }

Referenced by ScalarNearlyZero().

## ◆ AdvancedBlend()

template<typename TPipeline >

static std::optional<Entity> impeller::AdvancedBlend | ( | const FilterInput::Vector & | inputs,
|  | const ContentContext & | renderer,
|  | const Entity & | entity,
|  | const Rect & | coverage,
|  | BlendMode | blend_mode,
|  | std::optional< Color > | foreground_color,
|  | ColorFilterContents::AbsorbOpacity | absorb_opacity,
|  | PipelineProc | pipeline_proc,
|  | std::optional< Scalar > | alpha
| ) |  |
| static

Handle inputs.

Render to texture.

Definition at line 71 of file blend_filter_contents.cc.

80 {
81 using VS = typename TPipeline::VertexShader;
82 using FS = typename TPipeline::FragmentShader;
83
84 //----------------------------------------------------------------------------
85 /// Handle inputs.
86 ///
87
88 const size_t total_inputs =
89 inputs.size() + (foreground_color.has_value() ? 1 : 0);
90 if (total_inputs < 2) {
91 return std::nullopt;
92 }
93
94 auto dst_snapshot =
95 inputs[0]->GetSnapshot("AdvancedBlend(Dst)", renderer, entity);
96 if (!dst_snapshot.has_value()) {
97 return std::nullopt;
98 }
99 auto maybe_dst_uvs = dst_snapshot->GetCoverageUVs(coverage);
100 if (!maybe_dst_uvs.has_value()) {
101 return std::nullopt;
102 }
103 auto dst_uvs = maybe_dst_uvs.value();
104
105 std::optional<Snapshot> src_snapshot;
106 std::array<Point, 4> src_uvs;
107 if (!foreground_color.has_value()) {
108 src_snapshot =
109 inputs[1]->GetSnapshot("AdvancedBlend(Src)", renderer, entity);
110 if (!src_snapshot.has_value()) {
111 if (!dst_snapshot.has_value()) {
112 return std::nullopt;
113 }
114 return Entity::FromSnapshot(dst_snapshot, entity.GetBlendMode(),
115 entity.GetClipDepth());
116 }
117 auto maybe_src_uvs = src_snapshot->GetCoverageUVs(coverage);
118 if (!maybe_src_uvs.has_value()) {
119 if (!dst_snapshot.has_value()) {
120 return std::nullopt;
121 }
122 return Entity::FromSnapshot(dst_snapshot, entity.GetBlendMode(),
123 entity.GetClipDepth());
124 }
125 src_uvs = maybe_src_uvs.value();
126 }
127
128 Rect subpass_coverage = coverage;
129 if (entity.GetContents()) {
130 auto coverage_hint = entity.GetContents()->GetCoverageHint();
131
132 if (coverage_hint.has_value()) {
133 auto maybe_subpass_coverage =
134 subpass_coverage.Intersection(*coverage_hint);
135 if (!maybe_subpass_coverage.has_value()) {
136 return std::nullopt; // Nothing to render.
137 }
138
139 subpass_coverage = *maybe_subpass_coverage;
140 }
141 }
142
143 //----------------------------------------------------------------------------
144 /// Render to texture.
145 ///
146
147 ContentContext::SubpassCallback callback = [&](const ContentContext& renderer,
148 RenderPass& pass) {
149 auto& host_buffer = pass.GetTransientsBuffer();
150
151 auto size = pass.GetRenderTargetSize();
152 VertexBufferBuilder<typename VS::PerVertexData> vtx_builder;
153 vtx_builder.AddVertices({
154 {Point(0, 0), dst_uvs[0], src_uvs[0]},
155 {Point(size.width, 0), dst_uvs[1], src_uvs[1]},
156 {Point(0, size.height), dst_uvs[2], src_uvs[2]},
157 {Point(size.width, size.height), dst_uvs[3], src_uvs[3]},
158 });
159 auto vtx_buffer = vtx_builder.CreateVertexBuffer(host_buffer);
160
161 auto options = OptionsFromPass(pass);
162 options.primitive_type = PrimitiveType::kTriangleStrip;
163 options.blend_mode = BlendMode::kSource;
164 std::shared_ptr<Pipeline<PipelineDescriptor>> pipeline =
165 std::invoke(pipeline_proc, renderer, options);
166
167 Command cmd;
168 DEBUG_COMMAND_INFO(cmd, SPrintF("Advanced Blend Filter (%s)",
169 BlendModeToString(blend_mode)));
170 cmd.BindVertices(std::move(vtx_buffer));
171 cmd.pipeline = std::move(pipeline);
172
173 typename FS::BlendInfo blend_info;
174 typename VS::FrameInfo frame_info;
175
176 auto dst_sampler_descriptor = dst_snapshot->sampler_descriptor;
177 if (renderer.GetDeviceCapabilities().SupportsDecalSamplerAddressMode()) {
178 dst_sampler_descriptor.width_address_mode = SamplerAddressMode::kDecal;
179 dst_sampler_descriptor.height_address_mode = SamplerAddressMode::kDecal;
180 }
181 auto dst_sampler = renderer.GetContext()->GetSamplerLibrary()->GetSampler(
182 dst_sampler_descriptor);
183 FS::BindTextureSamplerDst(cmd, dst_snapshot->texture, dst_sampler);
184 frame_info.dst_y_coord_scale = dst_snapshot->texture->GetYCoordScale();
185 blend_info.dst_input_alpha =
186 absorb_opacity == ColorFilterContents::AbsorbOpacity::kYes
187 ? dst_snapshot->opacity
188 : 1.0;
189
190 if (foreground_color.has_value()) {
191 blend_info.color_factor = 1;
192 blend_info.color = foreground_color.value();
193 // This texture will not be sampled from due to the color factor. But
194 // this is present so that validation doesn't trip on a missing
195 // binding.
196 FS::BindTextureSamplerSrc(cmd, dst_snapshot->texture, dst_sampler);
197 } else {
198 auto src_sampler_descriptor = src_snapshot->sampler_descriptor;
199 if (renderer.GetDeviceCapabilities().SupportsDecalSamplerAddressMode()) {
200 src_sampler_descriptor.width_address_mode = SamplerAddressMode::kDecal;
201 src_sampler_descriptor.height_address_mode = SamplerAddressMode::kDecal;
202 }
203 auto src_sampler = renderer.GetContext()->GetSamplerLibrary()->GetSampler(
204 src_sampler_descriptor);
205 blend_info.color_factor = 0;
206 blend_info.src_input_alpha = src_snapshot->opacity;
207 FS::BindTextureSamplerSrc(cmd, src_snapshot->texture, src_sampler);
208 frame_info.src_y_coord_scale = src_snapshot->texture->GetYCoordScale();
209 }
210 auto blend_uniform = host_buffer.EmplaceUniform(blend_info);
211 FS::BindBlendInfo(cmd, blend_uniform);
212
213 frame_info.mvp = pass.GetOrthographicTransform() *
214 Matrix::MakeTranslation(coverage.GetOrigin() -
215 subpass_coverage.GetOrigin());
216
217 auto uniform_view = host_buffer.EmplaceUniform(frame_info);
218 VS::BindFrameInfo(cmd, uniform_view);
219 pass.AddCommand(std::move(cmd));
220
221 return true;
222 };
223
224 fml::StatusOr<RenderTarget> render_target = renderer.MakeSubpass(
225 "Advanced Blend Filter", ISize(subpass_coverage.GetSize()), callback);
226 if (!render_target.ok()) {
227 return std::nullopt;
228 }
229
230 return Entity::FromSnapshot(
231 Snapshot{
232 .texture = render_target.value().GetRenderTargetTexture(),
233 .transform = Matrix::MakeTranslation(subpass_coverage.GetOrigin()),
234 // Since we absorbed the transform of the inputs and used the
235 // respective snapshot sampling modes when blending, pass on
236 // the default NN clamp sampler.
237 .sampler_descriptor = {},
238 .opacity = (absorb_opacity == ColorFilterContents::AbsorbOpacity::kYes
239 ? 1.0f
240 : dst_snapshot->opacity) *
241 alpha.value_or(1.0)},
242 entity.GetBlendMode(), entity.GetClipDepth());
243 }

References impeller::VertexBufferBuilder< VertexType_, IndexType_ >::AddVertices(), impeller::Command::BindVertices(), BlendModeToString(), impeller::VertexBufferBuilder< VertexType_, IndexType_ >::CreateVertexBuffer(), DEBUG_COMMAND_INFO, impeller::Entity::FromSnapshot(), impeller::Entity::GetBlendMode(), impeller::Entity::GetClipDepth(), impeller::Entity::GetContents(), impeller::ContentContext::GetContext(), impeller::ContentContext::GetDeviceCapabilities(), impeller::TRect< T >::GetOrigin(), impeller::TRect< T >::GetSize(), impeller::TRect< T >::Intersection(), kDecal, kSource, kTriangleStrip, impeller::ColorFilterContents::kYes, impeller::ContentContext::MakeSubpass(), impeller::Matrix::MakeTranslation(), OptionsFromPass(), impeller::Command::pipeline, SPrintF(), impeller::Capabilities::SupportsDecalSamplerAddressMode(), and impeller::Snapshot::texture.

## ◆ AllocateAndBindDescriptorSets() [1/2]

fml::StatusOr< std::vector< vk::DescriptorSet > > impeller::AllocateAndBindDescriptorSets | ( | const ContextVK & | context,
|  | const std::shared_ptr< CommandEncoderVK > & | encoder,
|  | const std::vector< Command > & | commands,
|  | const TextureVK & | input_attachment
| ) |  |

Definition at line 123 of file binding_helpers_vk.cc.

127 {
128 if (commands.empty()) {
129 return std::vector<vk::DescriptorSet>{};
130 }
131
132 // Step 1: Determine the total number of buffer and sampler descriptor
133 // sets required. Collect this information along with the layout information
134 // to allocate a correctly sized descriptor pool.
135 size_t buffer_count = 0;
136 size_t samplers_count = 0;
137 size_t subpass_count = 0;
138 std::vector<vk::DescriptorSetLayout> layouts;
139 layouts.reserve(commands.size());
140
141 for (const auto& command : commands) {
142 buffer_count += command.vertex_bindings.buffers.size();
143 buffer_count += command.fragment_bindings.buffers.size();
144 samplers_count += command.fragment_bindings.sampled_images.size();
145 subpass_count +=
146 command.pipeline->GetDescriptor().UsesSubpassInput() ? 1 : 0;
147
148 layouts.emplace_back(
149 PipelineVK::Cast(*command.pipeline).GetDescriptorSetLayout());
150 }
151 auto descriptor_result = encoder->AllocateDescriptorSets(
152 buffer_count, samplers_count, subpass_count, layouts);
153 if (!descriptor_result.ok()) {
154 return descriptor_result.status();
155 }
156 auto descriptor_sets = descriptor_result.value();
157 if (descriptor_sets.empty()) {
158 return fml::Status();
159 }
160
161 // Step 2: Update the descriptors for all image and buffer descriptors used
162 // in the render pass.
163 std::vector<vk::DescriptorImageInfo> images;
164 std::vector<vk::DescriptorBufferInfo> buffers;
165 std::vector<vk::WriteDescriptorSet> writes;
166 images.reserve(samplers_count + subpass_count);
167 buffers.reserve(buffer_count);
168 writes.reserve(samplers_count + buffer_count + subpass_count);
169
170 auto& allocator = *context.GetResourceAllocator();
171 auto desc_index = 0u;
172 for (const auto& command : commands) {
173 auto desc_set = command.pipeline->GetDescriptor()
174 .GetVertexDescriptor()
175 ->GetDescriptorSetLayouts();
176
177 if (!BindBuffers(command.vertex_bindings, allocator, encoder,
178 descriptor_sets[desc_index], desc_set, buffers, writes) ||
179 !BindBuffers(command.fragment_bindings, allocator, encoder,
180 descriptor_sets[desc_index], desc_set, buffers, writes) ||
181 !BindImages(command.fragment_bindings, allocator, encoder,
182 descriptor_sets[desc_index], images, writes)) {
183 return fml::Status(fml::StatusCode::kUnknown,
184 "Failed to bind texture or buffer.");
185 }
186
187 if (command.pipeline->GetDescriptor().UsesSubpassInput()) {
188 vk::DescriptorImageInfo image_info;
189 image_info.imageLayout = vk::ImageLayout::eGeneral;
190 image_info.sampler = VK_NULL_HANDLE;
191 image_info.imageView = input_attachment.GetImageView();
192 images.push_back(image_info);
193
194 vk::WriteDescriptorSet write_set;
195 write_set.dstSet = descriptor_sets[desc_index];
196 write_set.dstBinding = kMagicSubpassInputBinding;
197 write_set.descriptorCount = 1u;
198 write_set.descriptorType = vk::DescriptorType::eInputAttachment;
199 write_set.pImageInfo = &images.back();
200
201 writes.push_back(write_set);
202 }
203 desc_index += 1;
204 }
205
206 context.GetDevice().updateDescriptorSets(writes, {});
207 return descriptor_sets;
208 }

References BindBuffers(), BindImages(), impeller::BackendCast< PipelineVK, Pipeline< PipelineDescriptor > >::Cast(), impeller::PipelineVK::GetDescriptorSetLayout(), impeller::ContextVK::GetDevice(), impeller::TextureVK::GetImageView(), impeller::ContextVK::GetResourceAllocator(), and kMagicSubpassInputBinding.

## ◆ AllocateAndBindDescriptorSets() [2/2]

fml::StatusOr< std::vector< vk::DescriptorSet > > impeller::AllocateAndBindDescriptorSets | ( | const ContextVK & | context,
|  | const std::shared_ptr< CommandEncoderVK > & | encoder,
|  | const std::vector< ComputeCommand > & | commands
| ) |  |

Definition at line 210 of file binding_helpers_vk.cc.

213 {
214 if (commands.empty()) {
215 return std::vector<vk::DescriptorSet>{};
216 }
217 // Step 1: Determine the total number of buffer and sampler descriptor
218 // sets required. Collect this information along with the layout information
219 // to allocate a correctly sized descriptor pool.
220 size_t buffer_count = 0;
221 size_t samplers_count = 0;
222 std::vector<vk::DescriptorSetLayout> layouts;
223 layouts.reserve(commands.size());
224
225 for (const auto& command : commands) {
226 buffer_count += command.bindings.buffers.size();
227 samplers_count += command.bindings.sampled_images.size();
228
229 layouts.emplace_back(
230 ComputePipelineVK::Cast(*command.pipeline).GetDescriptorSetLayout());
231 }
232 auto descriptor_result =
233 encoder->AllocateDescriptorSets(buffer_count, samplers_count, 0, layouts);
234 if (!descriptor_result.ok()) {
235 return descriptor_result.status();
236 }
237 auto descriptor_sets = descriptor_result.value();
238 if (descriptor_sets.empty()) {
239 return fml::Status();
240 }
241 // Step 2: Update the descriptors for all image and buffer descriptors used
242 // in the render pass.
243 std::vector<vk::DescriptorImageInfo> images;
244 std::vector<vk::DescriptorBufferInfo> buffers;
245 std::vector<vk::WriteDescriptorSet> writes;
246 images.reserve(samplers_count);
247 buffers.reserve(buffer_count);
248 writes.reserve(samplers_count + buffer_count);
249
250 auto& allocator = *context.GetResourceAllocator();
251 auto desc_index = 0u;
252 for (const auto& command : commands) {
253 auto desc_set = command.pipeline->GetDescriptor().GetDescriptorSetLayouts();
254
255 if (!BindBuffers(command.bindings, allocator, encoder,
256 descriptor_sets[desc_index], desc_set, buffers, writes) ||
257 !BindImages(command.bindings, allocator, encoder,
258 descriptor_sets[desc_index], images, writes)) {
259 return fml::Status(fml::StatusCode::kUnknown,
260 "Failed to bind texture or buffer.");
261 }
262 desc_index += 1;
263 }
264
265 context.GetDevice().updateDescriptorSets(writes, {});
266 return descriptor_sets;
267 }

References BindBuffers(), BindImages(), impeller::BackendCast< ComputePipelineVK, Pipeline< ComputePipelineDescriptor > >::Cast(), impeller::ComputePipelineVK::GetDescriptorSetLayout(), impeller::ContextVK::GetDevice(), and impeller::ContextVK::GetResourceAllocator().

## ◆ API_AVAILABLE()

impeller::API_AVAILABLE | ( | ios(14.0) | ,
|  | macos(11.0) |
| ) |  |

Definition at line 18 of file command_buffer_mtl.mm.

20 {
21 switch (state) {
22 case MTLCommandEncoderErrorStateUnknown:
23 return @"unknown";
24 case MTLCommandEncoderErrorStateCompleted:
25 return @"completed";
26 case MTLCommandEncoderErrorStateAffected:
27 return @"affected";
28 case MTLCommandEncoderErrorStatePending:
29 return @"pending";
30 case MTLCommandEncoderErrorStateFaulted:
31 return @"faulted";
32 }
33 return @"unknown";
34 }

## ◆ AppendColor()

static void impeller::AppendColor | ( | const Color & | color,
|  | GradientData * | data
| ) |  |
| static

Definition at line 12 of file gradient.cc.

12 {
13 auto converted = color.ToR8G8B8A8();
14 data->color_bytes.push_back(converted[0]);
15 data->color_bytes.push_back(converted[1]);
16 data->color_bytes.push_back(converted[2]);
17 data->color_bytes.push_back(converted[3]);
18 }

References impeller::GradientData::color_bytes, and impeller::Color::ToR8G8B8A8().

Referenced by CreateGradientBuffer().

## ◆ ApproximateParabolaIntegral()

static Scalar impeller::ApproximateParabolaIntegral | ( | Scalar | x | ) |
| static

Definition at line 101 of file path_component.cc.

101 {
102 constexpr Scalar d = 0.67;
103 return x / (1.0 - d + sqrt(sqrt(pow(d, 4) + 0.25 * x * x)));
104 }

Referenced by impeller::QuadraticPathComponent::AppendPolylinePoints().

## ◆ AttachmentKindFromFormat()

constexpr AttachmentKind impeller::AttachmentKindFromFormat | ( | PixelFormat | format | ) |
| constexpr

Definition at line 404 of file formats_vk.h.

404 {
405 switch (format) {
406 case PixelFormat::kUnknown:
407 case PixelFormat::kA8UNormInt:
408 case PixelFormat::kR8UNormInt:
409 case PixelFormat::kR8G8UNormInt:
410 case PixelFormat::kR8G8B8A8UNormInt:
411 case PixelFormat::kR8G8B8A8UNormIntSRGB:
412 case PixelFormat::kB8G8R8A8UNormInt:
413 case PixelFormat::kB8G8R8A8UNormIntSRGB:
414 case PixelFormat::kR32G32B32A32Float:
415 case PixelFormat::kR16G16B16A16Float:
416 case PixelFormat::kB10G10R10XR:
417 case PixelFormat::kB10G10R10XRSRGB:
418 case PixelFormat::kB10G10R10A10XR:
419 return AttachmentKind::kColor;
420 case PixelFormat::kS8UInt:
421 return AttachmentKind::kStencil;
422 case PixelFormat::kD24UnormS8Uint:
423 case PixelFormat::kD32FloatS8UInt:
424 return AttachmentKind::kDepthStencil;
425 }
426 FML_UNREACHABLE();
427 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kColor, kD24UnormS8Uint, kD32FloatS8UInt, kDepthStencil, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, kStencil, and kUnknown.

Referenced by CreateAttachmentDescription().

## ◆ AttachmentToString()

std::string impeller::AttachmentToString | ( | const Attachment & | attachment | ) |

Definition at line 104 of file formats.cc.

104 {
105 std::stringstream stream;
106 if (attachment.texture) {
107 stream << "Texture=("
108 << TextureDescriptorToString(
109 attachment.texture->GetTextureDescriptor())
110 << "),";
111 }
112 if (attachment.resolve_texture) {
113 stream << "ResolveTexture=("
114 << TextureDescriptorToString(
115 attachment.resolve_texture->GetTextureDescriptor())
116 << "),";
117 }
118 stream << "LoadAction=" << LoadActionToString(attachment.load_action) << ",";
119 stream << "StoreAction=" << StoreActionToString(attachment.store_action);
120 return stream.str();
121 }

References impeller::Attachment::load_action, LoadActionToString(), impeller::Attachment::resolve_texture, impeller::Attachment::store_action, StoreActionToString(), impeller::Attachment::texture, and TextureDescriptorToString().

Referenced by ColorAttachmentToString(), DepthAttachmentToString(), and StencilAttachmentToString().

## ◆ AttachmentTypeString()

static const char* impeller::AttachmentTypeString | ( | GLint | type | ) |
| static

Definition at line 220 of file proc_table_gles.cc.

220 {
221 switch (type) {
222 case GL_RENDERBUFFER:
223 return "GL_RENDERBUFFER";
224 case GL_TEXTURE:
225 return "GL_TEXTURE";
226 case GL_NONE:
227 return "GL_NONE";
228 }
229
230 return "Unknown Type";
231 }

Referenced by DescribeFramebufferAttachment().

## ◆ BENCHMARK_CAPTURE() [1/8]

impeller::BENCHMARK_CAPTURE | ( | BM_CanvasRecord | ,
|  | draw_circle | ,
|  | & | DrawCircle
| ) |  |

## ◆ BENCHMARK_CAPTURE() [2/8]

impeller::BENCHMARK_CAPTURE | ( | BM_CanvasRecord | ,
|  | draw_line | ,
|  | & | DrawLine
| ) |  |

## ◆ BENCHMARK_CAPTURE() [3/8]

impeller::BENCHMARK_CAPTURE | ( | BM_CanvasRecord | ,
|  | draw_rect | ,
|  | & | DrawRect
| ) |  |

## ◆ BENCHMARK_CAPTURE() [4/8]

impeller::BENCHMARK_CAPTURE | ( | BM_Convex | ,
|  | rrect_convex | ,
|  | CreateRRect() | ,
|  | true |
| ) |  |

## ◆ BENCHMARK_CAPTURE() [5/8]

impeller::BENCHMARK_CAPTURE | ( | BM_Polyline | ,
|  | cubic_polyline | ,
|  | CreateCubic() | ,
|  | false |
| ) |  |

## ◆ BENCHMARK_CAPTURE() [6/8]

impeller::BENCHMARK_CAPTURE | ( | BM_Polyline | ,
|  | cubic_polyline_tess | ,
|  | CreateCubic() | ,
|  | true |
| ) |  |

## ◆ BENCHMARK_CAPTURE() [7/8]

impeller::BENCHMARK_CAPTURE | ( | BM_Polyline | ,
|  | quad_polyline | ,
|  | CreateQuadratic() | ,
|  | false |
| ) |  |

## ◆ BENCHMARK_CAPTURE() [8/8]

impeller::BENCHMARK_CAPTURE | ( | BM_Polyline | ,
|  | quad_polyline_tess | ,
|  | CreateQuadratic() | ,
|  | true |
| ) |  |

## ◆ Bind() [1/4]

static bool impeller::Bind | ( | ComputePassBindingsCache & | pass,
|  | Allocator & | allocator,
|  | size_t | bind_index,
|  | const BufferView & | view
| ) |  |
| static

Definition at line 166 of file compute_pass_mtl.mm.

169 {
170 if (!view.buffer) {
171 return false;
172 }
173
174 auto device_buffer = view.buffer->GetDeviceBuffer(allocator);
175 if (!device_buffer) {
176 return false;
177 }
178
179 auto buffer = DeviceBufferMTL::Cast(*device_buffer).GetMTLBuffer();
180 // The Metal call is a void return and we don't want to make it on nil.
181 if (!buffer) {
182 return false;
183 }
184
185 pass.SetBuffer(bind_index, view.range.offset, buffer);
186 return true;
187 }

References impeller::BufferView::buffer, impeller::BackendCast< DeviceBufferMTL, Buffer >::Cast(), impeller::DeviceBufferMTL::GetMTLBuffer(), impeller::Range::offset, impeller::BufferView::range, and impeller::ComputePassBindingsCache::SetBuffer().

## ◆ Bind() [2/4]

static bool impeller::Bind | ( | ComputePassBindingsCache & | pass,
|  | size_t | bind_index,
|  | const Sampler & | sampler,
|  | const Texture & | texture
| ) |  |
| static

Definition at line 189 of file compute_pass_mtl.mm.

192 {
193 if (!sampler.IsValid() || !texture.IsValid()) {
194 return false;
195 }
196
197 pass.SetTexture(bind_index, TextureMTL::Cast(texture).GetMTLTexture());
198 pass.SetSampler(bind_index, SamplerMTL::Cast(sampler).GetMTLSamplerState());
199 return true;
200 }

References impeller::BackendCast< TextureMTL, Texture >::Cast(), impeller::BackendCast< SamplerMTL, Sampler >::Cast(), impeller::Sampler::IsValid(), impeller::Texture::IsValid(), impeller::ComputePassBindingsCache::SetSampler(), and impeller::ComputePassBindingsCache::SetTexture().

## ◆ Bind() [3/4]

static bool impeller::Bind | ( | PassBindingsCache & | pass,
|  | Allocator & | allocator,
|  | ShaderStage | stage,
|  | size_t | bind_index,
|  | const BufferView & | view
| ) |  |
| static

Definition at line 358 of file render_pass_mtl.mm.

362 {
363 if (!view.buffer) {
364 return false;
365 }
366
367 auto device_buffer = view.buffer->GetDeviceBuffer(allocator);
368 if (!device_buffer) {
369 return false;
370 }
371
372 auto buffer = DeviceBufferMTL::Cast(*device_buffer).GetMTLBuffer();
373 // The Metal call is a void return and we don't want to make it on nil.
374 if (!buffer) {
375 return false;
376 }
377
378 return pass.SetBuffer(stage, bind_index, view.range.offset, buffer);
379 }

References impeller::BufferView::buffer, impeller::Range::offset, impeller::BufferView::range, and impeller::PassBindingsCache::SetBuffer().

## ◆ Bind() [4/4]

static bool impeller::Bind | ( | PassBindingsCache & | pass,
|  | ShaderStage | stage,
|  | size_t | bind_index,
|  | const Sampler & | sampler,
|  | const Texture & | texture
| ) |  |
| static

Definition at line 381 of file render_pass_mtl.mm.

385 {
386 if (!sampler.IsValid() || !texture.IsValid()) {
387 return false;
388 }
389
390 if (texture.NeedsMipmapGeneration()) {
391 // TODO(127697): generate mips when the GPU is available on iOS.
392 #if !FML_OS_IOS
393 VALIDATION_LOG
394 << "Texture at binding index " << bind_index
395 << " has a mip count > 1, but the mipmap has not been generated.";
396 return false;
397 #endif // !FML_OS_IOS
398 }
399
400 return pass.SetTexture(stage, bind_index,
401 TextureMTL::Cast(texture).GetMTLTexture()) &&
402 pass.SetSampler(stage, bind_index,
403 SamplerMTL::Cast(sampler).GetMTLSamplerState());
404 }

References impeller::Sampler::IsValid(), impeller::Texture::IsValid(), impeller::Texture::NeedsMipmapGeneration(), impeller::PassBindingsCache::SetSampler(), impeller::PassBindingsCache::SetTexture(), and VALIDATION_LOG.

## ◆ BindBuffers()

static bool impeller::BindBuffers | ( | const Bindings & | bindings,
|  | Allocator & | allocator,
|  | const std::shared_ptr< CommandEncoderVK > & | encoder,
|  | vk::DescriptorSet & | vk_desc_set,
|  | const std::vector< DescriptorSetLayout > & | desc_set,
|  | std::vector< vk::DescriptorBufferInfo > & | buffers,
|  | std::vector< vk::WriteDescriptorSet > & | writes
| ) |  |
| static

Definition at line 63 of file binding_helpers_vk.cc.

69 {
70 for (const BufferAndUniformSlot& data : bindings.buffers) {
71 const auto& buffer_view = data.view.resource.buffer;
72
73 auto device_buffer = buffer_view->GetDeviceBuffer(allocator);
74 if (!device_buffer) {
75 VALIDATION_LOG << "Failed to get device buffer for vertex binding";
76 return false;
77 }
78
79 auto buffer = DeviceBufferVK::Cast(*device_buffer).GetBuffer();
80 if (!buffer) {
81 return false;
82 }
83
84 if (!encoder->Track(device_buffer)) {
85 return false;
86 }
87
88 uint32_t offset = data.view.resource.range.offset;
89
90 vk::DescriptorBufferInfo buffer_info;
91 buffer_info.buffer = buffer;
92 buffer_info.offset = offset;
93 buffer_info.range = data.view.resource.range.length;
94 buffers.push_back(buffer_info);
95
96 // TODO(jonahwilliams): remove this part by storing more data in
97 // ShaderUniformSlot.
98 const ShaderUniformSlot& uniform = data.slot;
99 auto layout_it =
100 std::find_if(desc_set.begin(), desc_set.end(),
101 [&uniform](const DescriptorSetLayout& layout) {
102 return layout.binding == uniform.binding;
103 });
104 if (layout_it == desc_set.end()) {
105 VALIDATION_LOG << "Failed to get descriptor set layout for binding "
106 << uniform.binding;
107 return false;
108 }
109 auto layout = *layout_it;
110
111 vk::WriteDescriptorSet write_set;
112 write_set.dstSet = vk_desc_set;
113 write_set.dstBinding = uniform.binding;
114 write_set.descriptorCount = 1u;
115 write_set.descriptorType = ToVKDescriptorType(layout.descriptor_type);
116 write_set.pBufferInfo = &buffers.back();
117
118 writes.push_back(write_set);
119 }
120 return true;
121 }

References impeller::ShaderUniformSlot::binding, impeller::BufferView::buffer, impeller::Bindings::buffers, impeller::BackendCast< DeviceBufferVK, Buffer >::Cast(), impeller::DescriptorSetLayout::descriptor_type, impeller::DeviceBufferVK::GetBuffer(), impeller::Range::length, impeller::Range::offset, impeller::BufferView::range, impeller::Resource< T >::resource, impeller::BufferAndUniformSlot::slot, ToVKDescriptorType(), VALIDATION_LOG, and impeller::BufferAndUniformSlot::view.

Referenced by AllocateAndBindDescriptorSets().

## ◆ BindImages()

static bool impeller::BindImages | ( | const Bindings & | bindings,
|  | Allocator & | allocator,
|  | const std::shared_ptr< CommandEncoderVK > & | encoder,
|  | vk::DescriptorSet & | vk_desc_set,
|  | std::vector< vk::DescriptorImageInfo > & | images,
|  | std::vector< vk::WriteDescriptorSet > & | writes
| ) |  |
| static

Definition at line 26 of file binding_helpers_vk.cc.

31 {
32 for (const TextureAndSampler& data : bindings.sampled_images) {
33 auto texture = data.texture.resource;
34 const auto& texture_vk = TextureVK::Cast(*texture);
35 const SamplerVK& sampler = SamplerVK::Cast(*data.sampler);
36
37 if (!encoder->Track(texture) ||
38 !encoder->Track(sampler.GetSharedSampler())) {
39 return false;
40 }
41
42 const SampledImageSlot& slot = data.slot;
43
44 vk::DescriptorImageInfo image_info;
45 image_info.imageLayout = vk::ImageLayout::eShaderReadOnlyOptimal;
46 image_info.sampler = sampler.GetSampler();
47 image_info.imageView = texture_vk.GetImageView();
48 images.push_back(image_info);
49
50 vk::WriteDescriptorSet write_set;
51 write_set.dstSet = vk_desc_set;
52 write_set.dstBinding = slot.binding;
53 write_set.descriptorCount = 1u;
54 write_set.descriptorType = vk::DescriptorType::eCombinedImageSampler;
55 write_set.pImageInfo = &images.back();
56
57 writes.push_back(write_set);
58 }
59
60 return true;
61 };

References impeller::SampledImageSlot::binding, impeller::BackendCast< TextureVK, Texture >::Cast(), impeller::BackendCast< SamplerVK, Sampler >::Cast(), impeller::SamplerVK::GetSampler(), impeller::SamplerVK::GetSharedSampler(), impeller::Resource< T >::resource, impeller::Bindings::sampled_images, impeller::TextureAndSampler::sampler, impeller::TextureAndSampler::slot, and impeller::TextureAndSampler::texture.

Referenced by AllocateAndBindDescriptorSets().

## ◆ BlendModeToString()

const char * impeller::BlendModeToString | ( | BlendMode | blend_mode | ) |

Definition at line 47 of file color.cc.

47 {
48 return kBlendModeNames[static_cast<std::underlying_type_t<BlendMode>>(
49 blend_mode)];
50 }

References kBlendModeNames.

Referenced by AdvancedBlend(), PipelineBlend(), impeller::AtlasContents::Render(), impeller::testing::TEST(), and impeller::TraceSerializer::Write().

## ◆ BM_CanvasRecord()

template<class... Args>

static void impeller::BM_CanvasRecord | ( | benchmark::State & | state,
|  | Args &&... | args
| ) |  |
| static

Definition at line 42 of file canvas_benchmarks.cc.

42 {
43 auto args_tuple = std::make_tuple(std::move(args)...);
44 auto test_proc = std::get<CanvasCallback>(args_tuple);
45
46 size_t op_count = 0u;
47 size_t canvas_count = 0u;
48 while (state.KeepRunning()) {
49 // A new canvas is allocated for each iteration to avoid the benchmark
50 // becoming a measurement of only the entity vector re-allocation time.
51 Canvas canvas;
52 op_count += test_proc(canvas);
53 canvas_count++;
54 }
55 state.counters["TotalOpCount"] = op_count;
56 state.counters["TotalCanvasCount"] = canvas_count;
57 }

## ◆ BM_Convex()

template<class... Args>

static void impeller::BM_Convex | ( | benchmark::State & | state,
|  | Args &&... | args
| ) |  |
| static

Definition at line 68 of file geometry_benchmarks.cc.

68 {
69 auto args_tuple = std::make_tuple(std::move(args)...);
70 auto path = std::get<Path>(args_tuple).Clone();
71
72 size_t point_count = 0u;
73 size_t single_point_count = 0u;
74 auto points = std::make_unique<std::vector<Point>>();
75 points->reserve(2048);
76 while (state.KeepRunning()) {
77 auto points = tess.TessellateConvex(path, 1.0f);
78 single_point_count = points.size();
79 point_count += points.size();
80 }
81 state.counters["SinglePointCount"] = single_point_count;
82 state.counters["TotalPointCount"] = point_count;
83 }

References tess, and impeller::Tessellator::TessellateConvex().

## ◆ BM_Polyline()

template<class... Args>

static void impeller::BM_Polyline | ( | benchmark::State & | state,
|  | Args &&... | args
| ) |  |
| static

Definition at line 26 of file geometry_benchmarks.cc.

26 {
27 auto args_tuple = std::make_tuple(std::move(args)...);
28 auto path = std::get<Path>(args_tuple).Clone();
29 bool tessellate = std::get<bool>(args_tuple);
30
31 size_t point_count = 0u;
32 size_t single_point_count = 0u;
33 auto points = std::make_unique<std::vector<Point>>();
34 points->reserve(2048);
35 while (state.KeepRunning()) {
36 if (tessellate) {
37 tess.Tessellate(path, 1.0f,
38 [&point_count, &single_point_count](
39 const float* vertices, size_t vertices_count,
40 const uint16_t* indices, size_t indices_count) {
41 if (indices_count > 0) {
42 single_point_count = indices_count;
43 point_count += indices_count;
44 } else {
45 single_point_count = vertices_count;
46 point_count += vertices_count;
47 }
48 return true;
49 });
50 } else {
51 auto polyline = path.CreatePolyline(
52 // Clang-tidy doesn't know that the points get moved back before
53 // getting moved again in this loop.
54 // NOLINTNEXTLINE(clang-analyzer-cplusplus.Move)
55 1.0f, std::move(points),
56 [&points](Path::Polyline::PointBufferPtr reclaimed) {
57 points = std::move(reclaimed);
58 });
59 single_point_count = polyline.points->size();
60 point_count += single_point_count;
61 }
62 }
63 state.counters["SinglePointCount"] = single_point_count;
64 state.counters["TotalPointCount"] = point_count;
65 }

References tess, and impeller::Tessellator::Tessellate().

## ◆ BytesPerPixelForPixelFormat()

constexpr size_t impeller::BytesPerPixelForPixelFormat | ( | PixelFormat | format | ) |
| constexpr

Definition at line 442 of file formats.h.

442 {
443 switch (format) {
444 case PixelFormat::kUnknown:
445 return 0u;
446 case PixelFormat::kA8UNormInt:
447 case PixelFormat::kR8UNormInt:
448 case PixelFormat::kS8UInt:
449 return 1u;
450 case PixelFormat::kR8G8UNormInt:
451 return 2u;
452 case PixelFormat::kR8G8B8A8UNormInt:
453 case PixelFormat::kR8G8B8A8UNormIntSRGB:
454 case PixelFormat::kB8G8R8A8UNormInt:
455 case PixelFormat::kB8G8R8A8UNormIntSRGB:
456 case PixelFormat::kB10G10R10XRSRGB:
457 case PixelFormat::kB10G10R10XR:
458 return 4u;
459 case PixelFormat::kD24UnormS8Uint:
460 return 4u;
461 case PixelFormat::kD32FloatS8UInt:
462 return 5u;
463 case PixelFormat::kR16G16B16A16Float:
464 case PixelFormat::kB10G10R10A10XR:
465 return 8u;
466 case PixelFormat::kR32G32B32A32Float:
467 return 16u;
468 }
469 return 0u;
470 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by impeller::BlitPass::AddCopy(), impeller::BlitCopyTextureToBufferCommandMTL::Encode(), impeller::BlitCopyBufferToTextureCommandMTL::Encode(), impeller::TextureDescriptor::GetByteSizeOfBaseMipLevel(), impeller::TextureDescriptor::GetBytesPerRow(), and impeller::Allocator::MinimumBytesPerRow().

## ◆ CanAppendToExistingAtlas() [1/2]

static bool impeller::CanAppendToExistingAtlas | ( | const std::shared_ptr< GlyphAtlas > & | atlas,
|  | const std::vector< FontGlyphPair > & | extra_pairs,
|  | std::vector< Rect > & | glyph_positions,
|  | ISize | atlas_size,
|  | const std::shared_ptr< RectanglePacker > & | rect_packer
| ) |  |
| static

Definition at line 78 of file typographer_context_skia.cc.

83 {
84 TRACE_EVENT0("impeller", __FUNCTION__);
85 if (!rect_packer || atlas_size.IsEmpty()) {
86 return false;
87 }
88
89 // We assume that all existing glyphs will fit. After all, they fit before.
90 // The glyph_positions only contains the values for the additional glyphs
91 // from extra_pairs.
92 FML_DCHECK(glyph_positions.size() == 0);
93 glyph_positions.reserve(extra_pairs.size());
94 for (size_t i = 0; i < extra_pairs.size(); i++) {
95 const FontGlyphPair& pair = extra_pairs[i];
96
97 const auto glyph_size =
98 ISize::Ceil(pair.glyph.bounds.GetSize() * pair.scaled_font.scale);
99 IPoint16 location_in_atlas;
100 if (!rect_packer->addRect(glyph_size.width + kPadding, //
101 glyph_size.height + kPadding, //
102 &location_in_atlas //
103 )) {
104 return false;
105 }
106 glyph_positions.emplace_back(Rect::MakeXYWH(location_in_atlas.x(), //
107 location_in_atlas.y(), //
108 glyph_size.width, //
109 glyph_size.height //
110 ));
111 }
112
113 return true;
114 }

References impeller::Glyph::bounds, impeller::TSize< int64_t >::Ceil(), impeller::TRect< T >::GetSize(), impeller::FontGlyphPair::glyph, impeller::TSize< T >::IsEmpty(), kPadding, impeller::TRect< Scalar >::MakeXYWH(), impeller::ScaledFont::scale, impeller::FontGlyphPair::scaled_font, impeller::IPoint16::x(), and impeller::IPoint16::y().

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ CanAppendToExistingAtlas() [2/2]

static bool impeller::CanAppendToExistingAtlas | ( | const std::shared_ptr< GlyphAtlas > & | atlas,
|  | const std::vector< FontGlyphPair > & | extra_pairs,
|  | std::vector< Rect > & | glyph_positions,
|  | ISize | atlas_size,
|  | const std::shared_ptr< RectanglePacker > & | rect_packer
| ) |  |
| static

Definition at line 100 of file typographer_context_stb.cc.

105 {
106 TRACE_EVENT0("impeller", __FUNCTION__);
107 if (!rect_packer || atlas_size.IsEmpty()) {
108 return false;
109 }
110
111 // We assume that all existing glyphs will fit. After all, they fit before.
112 // The glyph_positions only contains the values for the additional glyphs
113 // from extra_pairs.
114 FML_DCHECK(glyph_positions.size() == 0);
115 glyph_positions.reserve(extra_pairs.size());
116 for (size_t i = 0; i < extra_pairs.size(); i++) {
117 const FontGlyphPair& pair = extra_pairs[i];
118 const Font& font = pair.scaled_font.font;
119
120 // We downcast to the correct typeface type to access `stb` specific methods
121 std::shared_ptr<TypefaceSTB> typeface_stb =
122 std::reinterpret_pointer_cast<TypefaceSTB>(font.GetTypeface());
123 // Conversion factor to scale font size in Points to pixels.
124 // Note this assumes typical DPI.
125 float text_size_pixels =
126 font.GetMetrics().point_size * TypefaceSTB::kPointsToPixels;
127
128 ISize glyph_size;
129 {
130 int x0 = 0, y0 = 0, x1 = 0, y1 = 0;
131 // NOTE: We increase the size of the glyph by one pixel in all dimensions
132 // to allow us to cut out padding later.
133 float scale_y = stbtt_ScaleForPixelHeight(typeface_stb->GetFontInfo(),
134 text_size_pixels);
135 float scale_x = scale_y;
136 stbtt_GetGlyphBitmapBox(typeface_stb->GetFontInfo(), pair.glyph.index,
137 scale_x, scale_y, &x0, &y0, &x1, &y1);
138
139 glyph_size = ISize(x1 - x0, y1 - y0);
140 }
141
142 IPoint16 location_in_atlas;
143 if (!rect_packer->addRect(glyph_size.width + kPadding, //
144 glyph_size.height + kPadding, //
145 &location_in_atlas //
146 )) {
147 return false;
148 }
149 glyph_positions.emplace_back(Rect::MakeXYWH(location_in_atlas.x(), //
150 location_in_atlas.y(), //
151 glyph_size.width, //
152 glyph_size.height //
153 ));
154 }
155
156 return true;
157 }

References impeller::ScaledFont::font, impeller::Font::GetMetrics(), impeller::Font::GetTypeface(), impeller::FontGlyphPair::glyph, impeller::TSize< T >::height, impeller::Glyph::index, impeller::TSize< T >::IsEmpty(), kPadding, impeller::TypefaceSTB::kPointsToPixels, impeller::TRect< Scalar >::MakeXYWH(), impeller::Font::Metrics::point_size, impeller::FontGlyphPair::scaled_font, impeller::TSize< T >::width, impeller::IPoint16::x(), and impeller::IPoint16::y().

## ◆ CanClearAttachment()

constexpr bool impeller::CanClearAttachment | ( | LoadAction | action | ) |
| constexpr

Definition at line 234 of file formats.h.

234 {
235 switch (action) {
236 case LoadAction::kLoad:
237 return false;
238 case LoadAction::kDontCare:
239 case LoadAction::kClear:
240 return true;
241 }
242 FML_UNREACHABLE();
243 }

References kClear, kDontCare, and kLoad.

Referenced by EncodeCommandsInReactor().

## ◆ CanDiscardAttachmentWhenDone()

constexpr bool impeller::CanDiscardAttachmentWhenDone | ( | StoreAction | action | ) |
| constexpr

Definition at line 245 of file formats.h.

245 {
246 switch (action) {
247 case StoreAction::kStore:
248 case StoreAction::kStoreAndMultisampleResolve:
249 return false;
250 case StoreAction::kDontCare:
251 case StoreAction::kMultisampleResolve:
252 return true;
253 }
254 FML_UNREACHABLE();
255 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

Referenced by EncodeCommandsInReactor().

## ◆ ChooseAlphaCompositionMode()

static std::optional<vk::CompositeAlphaFlagBitsKHR> impeller::ChooseAlphaCompositionMode | ( | vk::CompositeAlphaFlagsKHR | flags | ) |
| static

Definition at line 106 of file swapchain_impl_vk.cc.

107 {
108 if (flags & vk::CompositeAlphaFlagBitsKHR::eInherit) {
109 return vk::CompositeAlphaFlagBitsKHR::eInherit;
110 }
111 if (flags & vk::CompositeAlphaFlagBitsKHR::ePreMultiplied) {
112 return vk::CompositeAlphaFlagBitsKHR::ePreMultiplied;
113 }
114 if (flags & vk::CompositeAlphaFlagBitsKHR::ePostMultiplied) {
115 return vk::CompositeAlphaFlagBitsKHR::ePostMultiplied;
116 }
117 if (flags & vk::CompositeAlphaFlagBitsKHR::eOpaque) {
118 return vk::CompositeAlphaFlagBitsKHR::eOpaque;
119 }
120
121 return std::nullopt;
122 }

## ◆ ChoosePresentQueue()

static std::optional<vk::Queue> impeller::ChoosePresentQueue | ( | const vk::PhysicalDevice & | physical_device,
|  | const vk::Device & | device,
|  | const vk::SurfaceKHR & | surface
| ) |  |
| static

Definition at line 124 of file swapchain_impl_vk.cc.

127 {
128 const auto families = physical_device.getQueueFamilyProperties();
129 for (size_t family_index = 0u; family_index < families.size();
130 family_index++) {
131 auto [result, supported] =
132 physical_device.getSurfaceSupportKHR(family_index, surface);
133 if (result == vk::Result::eSuccess && supported) {
134 return device.getQueue(family_index, 0u);
135 }
136 }
137 return std::nullopt;
138 }

## ◆ ChooseSurfaceFormat()

static std::optional<vk::SurfaceFormatKHR> impeller::ChooseSurfaceFormat | ( | const std::vector< vk::SurfaceFormatKHR > & | formats,
|  | PixelFormat | preference
| ) |  |
| static

Definition at line 84 of file swapchain_impl_vk.cc.

86 {
87 const auto colorspace = vk::ColorSpaceKHR::eSrgbNonlinear;
88 const auto vk_preference =
89 vk::SurfaceFormatKHR{ToVKImageFormat(preference), colorspace};
90 if (ContainsFormat(formats, vk_preference)) {
91 return vk_preference;
92 }
93
94 std::vector<vk::SurfaceFormatKHR> options = {
95 {vk::Format::eB8G8R8A8Unorm, colorspace},
96 {vk::Format::eR8G8B8A8Unorm, colorspace}};
97 for (const auto& format : options) {
98 if (ContainsFormat(formats, format)) {
99 return format;
100 }
101 }
102
103 return std::nullopt;
104 }

References ContainsFormat(), and ToVKImageFormat().

## ◆ ClipColor()

static constexpr Vector3 impeller::ClipColor | ( | Vector3 | color | ) |
| inline static constexpr

Definition at line 144 of file color.cc.

144 {
145 Scalar lum = Luminosity(color);
146 Scalar mn = std::min(std::min(color.x, color.y), color.z);
147 Scalar mx = std::max(std::max(color.x, color.y), color.z);
148 // `lum - mn` and `mx - lum` will always be >= 0 in the following conditions,
149 // so adding a tiny value is enough to make these divisions safe.
150 if (mn < 0.0f) {
151 color = lum + (((color - lum) * lum) / (lum - mn + kEhCloseEnough));
152 }
153 if (mx > 1.0) {
154 color =
155 lum + (((color - lum) * (1.0f - lum)) / (mx - lum + kEhCloseEnough));
156 }
157 return color;
158 }

References kEhCloseEnough, Luminosity(), impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by SetLuminosity().

## ◆ Close()

IMPELLER_API void impeller::Close | ( | PathBuilder * | builder | ) |

Definition at line 36 of file tessellator.cc.

36 {
37 builder->Close();
38 }

References impeller::PathBuilder::Close().

Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ CollectGLHandle()

static bool impeller::CollectGLHandle | ( | const ProcTableGLES & | gl,
|  | HandleType | type,
|  | GLuint | handle
| ) |  |
| static

Definition at line 108 of file reactor_gles.cc.

110 {
111 switch (type) {
112 case HandleType::kUnknown:
113 return false;
114 case HandleType::kTexture:
115 gl.DeleteTextures(1u, &handle);
116 return true;
117 case HandleType::kBuffer:
118 gl.DeleteBuffers(1u, &handle);
119 return true;
120 case HandleType::kProgram:
121 gl.DeleteProgram(handle);
122 return true;
123 case HandleType::kRenderBuffer:
124 gl.DeleteRenderbuffers(1u, &handle);
125 return true;
126 case HandleType::kFrameBuffer:
127 gl.DeleteFramebuffers(1u, &handle);
128 return true;
129 }
130 return false;
131 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kTexture, and kUnknown.

## ◆ ColorAttachmentToString()

std::string impeller::ColorAttachmentToString | ( | const ColorAttachment & | color | ) |

Definition at line 123 of file formats.cc.

123 {
124 std::stringstream stream;
125 stream << AttachmentToString(color) << ",";
126 stream << "ClearColor=(" << ColorToString(color.clear_color) << ")";
127 return stream.str();
128 }

References AttachmentToString(), impeller::ColorAttachment::clear_color, and ColorToString().

Referenced by impeller::RenderTarget::ToString().

## ◆ ColorToString()

std::string impeller::ColorToString | ( | const Color & | color | ) |

Definition at line 398 of file color.cc.

398 {
399 return SPrintF("R=%.1f,G=%.1f,B=%.1f,A=%.1f", //
400 color.red, //
401 color.green, //
402 color.blue, //
403 color.alpha //
404 );
405 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, impeller::Color::red, and SPrintF().

Referenced by ColorAttachmentToString().

## ◆ ComponentChoose()

static constexpr Vector3 impeller::ComponentChoose | ( | Vector3 | a,
|  | Vector3 | b,
|  | Vector3 | value,
|  | Scalar | cutoff
| ) |  |
| inline static constexpr

Definition at line 178 of file color.cc.

181 {
182 return Vector3(value.x > cutoff ? b.x : a.x, //
183 value.y > cutoff ? b.y : a.y, //
184 value.z > cutoff ? b.z : a.z //
185 );
186 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by impeller::Color::Blend().

## ◆ CompressionTypeToString()

constexpr const char* impeller::CompressionTypeToString | ( | CompressionType | type | ) |
| constexpr

Definition at line 23 of file texture_descriptor.h.

23 {
24 switch (type) {
25 case CompressionType::kLossless:
26 return "Lossless";
27 case CompressionType::kLossy:
28 return "Lossy";
29 }
30 FML_UNREACHABLE();
31 }

References kLossless, and kLossy.

Referenced by TextureDescriptorToString().

## ◆ ComputeQuadrantDivisions()

static size_t impeller::ComputeQuadrantDivisions | ( | Scalar | pixel_radius | ) |
| static

Definition at line 297 of file tessellator.cc.

297 {
298 if (pixel_radius <= 0.0) {
299 return 1;
300 }
301 int radius_index = ceil(pixel_radius);
302 if (radius_index < kPrecomputedDivisionCount) {
303 return kPrecomputedDivisions[radius_index];
304 }
305
306 // For a circle with N divisions per quadrant, the maximum deviation of
307 // the polgyon approximation from the true circle will be at the center
308 // of the base of each triangular pie slice. We can compute that distance
309 // by finding the midpoint of the line of the first slice and compare
310 // its distance from the center of the circle to the radius. We will aim
311 // to have the length of that bisector to be within |kCircleTolerance|
312 // from the radius in pixels.
313 //
314 // Each vertex will appear at an angle of:
315 // theta(i) = (kPi / 2) * (i / N) // for i in [0..N]
316 // with each point falling at:
317 // point(i) = r * (cos(theta), sin(theta))
318 // If we consider the unit circle to simplify the calculations below then
319 // we need to scale the tolerance from its absolute quantity into a unit
320 // circle fraction:
321 // k = tolerance / radius
322 // Using this scaled tolerance below to avoid multiplying by the radius
323 // throughout all of the math, we have:
324 // first point = (1, 0) // theta(0) == 0
325 // theta = kPi / 2 / N // theta(1)
326 // second point = (cos(theta), sin(theta)) = (c, s)
327 // midpoint = (first + second) * 0.5 = ((1 + c)/2, s/2)
328 // |midpoint| = sqrt((1 + c)*(1 + c)/4 + s*s/4)
329 // = sqrt((1 + c + c + c*c + s*s) / 4)
330 // = sqrt((1 + 2c + 1) / 4)
331 // = sqrt((2 + 2c) / 4)
332 // = sqrt((1 + c) / 2)
333 // = cos(theta / 2) // using half-angle cosine formula
334 // error = 1 - |midpoint| = 1 - cos(theta / 2)
335 // cos(theta/2) = 1 - error
336 // theta/2 = acos(1 - error)
337 // kPi / 2 / N / 2 = acos(1 - error)
338 // kPi / 4 / acos(1 - error) = N
339 // Since we need error <= k, we want divisions >= N, so we use:
340 // N = ceil(kPi / 4 / acos(1 - k))
341 //
342 // Math is confirmed in https://math.stackexchange.com/a/4132095
343 // (keeping in mind that we are computing quarter circle divisions here)
344 // which also points out a performance optimization that is accurate
345 // to within an over-estimation of 1 division would be:
346 // N = ceil(kPi / 4 / sqrt(2 * k))
347 // Since we have precomputed the divisions for radii up to 1024, we can
348 // afford to be more accurate using the acos formula here for larger radii.
349 double k = Tessellator::kCircleTolerance / pixel_radius;
350 return ceil(kPiOver4 / std::acos(1 - k));
351 }

References impeller::Tessellator::kCircleTolerance, kPiOver4, kPrecomputedDivisionCount, and kPrecomputedDivisions.

Referenced by impeller::Tessellator::FilledCircle(), impeller::Tessellator::FilledEllipse(), impeller::Tessellator::FilledRoundRect(), impeller::Tessellator::RoundCapLine(), and impeller::Tessellator::StrokedCircle().

## ◆ ComputeUVGeometryCPU()

VertexBufferBuilder< TextureFillVertexShader::PerVertexData > impeller::ComputeUVGeometryCPU | ( | VertexBufferBuilder< SolidFillVertexShader::PerVertexData > & | input,
|  | Point | texture_origin,
|  | Size | texture_coverage,
|  | Matrix | effect_transform
| ) |  |

Compute UV geometry for a VBB that contains only position geometry.

texture_origin should be set to 0, 0 for stroke and stroke based geometry, like the point field.

Definition at line 91 of file geometry.cc.

95 {
96 VertexBufferBuilder<TextureFillVertexShader::PerVertexData> vertex_builder;
97 vertex_builder.Reserve(input.GetVertexCount());
98 input.IterateVertices(
99 [&vertex_builder, &texture_coverage, &effect_transform,
100 &texture_origin](SolidFillVertexShader::PerVertexData old_vtx) {
101 TextureFillVertexShader::PerVertexData data;
102 data.position = old_vtx.position;
103 data.texture_coords = effect_transform *
104 (old_vtx.position - texture_origin) /
105 texture_coverage;
106 vertex_builder.AppendVertex(data);
107 });
108 return vertex_builder;
109 }

References impeller::VertexBufferBuilder< VertexType_, IndexType_ >::AppendVertex(), impeller::VertexBufferBuilder< VertexType_, IndexType_ >::GetVertexCount(), impeller::VertexBufferBuilder< VertexType_, IndexType_ >::IterateVertices(), and impeller::VertexBufferBuilder< VertexType_, IndexType_ >::Reserve().

## ◆ ComputeUVGeometryForRect()

GeometryResult impeller::ComputeUVGeometryForRect | ( | Rect | source_rect,
|  | Rect | texture_coverage,
|  | Matrix | effect_transform,
|  | const ContentContext & | renderer,
|  | const Entity & | entity,
|  | RenderPass & | pass
| ) |  |

Definition at line 111 of file geometry.cc.

116 {
117 auto& host_buffer = pass.GetTransientsBuffer();
118
119 auto uv_transform =
120 texture_coverage.GetNormalizingTransform() * effect_transform;
121 std::vector<Point> data(8);
122 auto points = source_rect.GetPoints();
123 for (auto i = 0u, j = 0u; i < 8; i += 2, j++) {
124 data[i] = points[j];
125 data[i + 1] = uv_transform * points[j];
126 }
127
128 return GeometryResult{
129 .type = PrimitiveType::kTriangleStrip,
130 .vertex_buffer =
131 {
132 .vertex_buffer = host_buffer.Emplace(
133 data.data(), 16 * sizeof(float), alignof(float)),
134 .vertex_count = 4,
135 .index_type = IndexType::kNone,
136 },
137 .transform = pass.GetOrthographicTransform() * entity.GetTransform(),
138 .prevent_overdraw = false,
139 };
140 }

References impeller::TRect< T >::GetNormalizingTransform(), impeller::RenderPass::GetOrthographicTransform(), impeller::TRect< T >::GetPoints(), impeller::Entity::GetTransform(), impeller::RenderPass::GetTransientsBuffer(), kNone, kTriangleStrip, and impeller::GeometryResult::type.

## ◆ ConfigureAttachment()

static bool impeller::ConfigureAttachment | ( | const Attachment & | desc,
|  | MTLRenderPassAttachmentDescriptor * | attachment
| ) |  |
| static

Definition at line 55 of file render_pass_mtl.mm.

56 {
57 if (!desc.texture) {
58 return false;
59 }
60
61 attachment.texture = TextureMTL::Cast(*desc.texture).GetMTLTexture();
62 attachment.loadAction = ToMTLLoadAction(desc.load_action);
63 attachment.storeAction = ToMTLStoreAction(desc.store_action);
64
65 if (!ConfigureResolveTextureAttachment(desc, attachment)) {
66 return false;
67 }
68
69 return true;
70 }

References impeller::BackendCast< TextureMTL, Texture >::Cast(), ConfigureResolveTextureAttachment(), impeller::TextureMTL::GetMTLTexture(), impeller::Attachment::load_action, impeller::Attachment::store_action, impeller::Attachment::texture, ToMTLLoadAction(), and ToMTLStoreAction().

Referenced by ConfigureColorAttachment(), ConfigureDepthAttachment(), and ConfigureStencilAttachment().

## ◆ ConfigureBlending()

void impeller::ConfigureBlending | ( | const ProcTableGLES & | gl,
|  | const ColorAttachmentDescriptor * | color
| ) |  |

Definition at line 43 of file render_pass_gles.cc.

44 {
45 if (color->blending_enabled) {
46 gl.Enable(GL_BLEND);
47 gl.BlendFuncSeparate(
48 ToBlendFactor(color->src_color_blend_factor), // src color
49 ToBlendFactor(color->dst_color_blend_factor), // dst color
50 ToBlendFactor(color->src_alpha_blend_factor), // src alpha
51 ToBlendFactor(color->dst_alpha_blend_factor) // dst alpha
52 );
53 gl.BlendEquationSeparate(
54 ToBlendOperation(color->color_blend_op), // mode color
55 ToBlendOperation(color->alpha_blend_op) // mode alpha
56 );
57 } else {
58 gl.Disable(GL_BLEND);
59 }
60
61 {
62 const auto is_set = [](std::underlying_type_t<ColorWriteMask> mask,
63 ColorWriteMask check) -> GLboolean {
64 using RawType = decltype(mask);
65 return (static_cast<RawType>(mask) & static_cast<RawType>(check))
66 ? GL_TRUE
67 : GL_FALSE;
68 };
69
70 gl.ColorMask(is_set(color->write_mask, ColorWriteMask::kRed), // red
71 is_set(color->write_mask, ColorWriteMask::kGreen), // green
72 is_set(color->write_mask, ColorWriteMask::kBlue), // blue
73 is_set(color->write_mask, ColorWriteMask::kAlpha) // alpha
74 );
75 }
76 }

References impeller::ColorAttachmentDescriptor::alpha_blend_op, impeller::ColorAttachmentDescriptor::blending_enabled, impeller::ColorAttachmentDescriptor::color_blend_op, impeller::ColorAttachmentDescriptor::dst_alpha_blend_factor, impeller::ColorAttachmentDescriptor::dst_color_blend_factor, kAlpha, kBlue, kGreen, kRed, impeller::ColorAttachmentDescriptor::src_alpha_blend_factor, impeller::ColorAttachmentDescriptor::src_color_blend_factor, ToBlendFactor(), ToBlendOperation(), and impeller::ColorAttachmentDescriptor::write_mask.

Referenced by EncodeCommandsInReactor().

## ◆ ConfigureColorAttachment()

static bool impeller::ConfigureColorAttachment | ( | const ColorAttachment & | desc,
|  | MTLRenderPassColorAttachmentDescriptor * | attachment
| ) |  |
| static

Definition at line 72 of file render_pass_mtl.mm.

74 {
75 if (!ConfigureAttachment(desc, attachment)) {
76 return false;
77 }
78 attachment.clearColor = ToMTLClearColor(desc.clear_color);
79 return true;
80 }

References impeller::ColorAttachment::clear_color, ConfigureAttachment(), and ToMTLClearColor().

Referenced by ToMTLRenderPassDescriptor().

## ◆ ConfigureDepthAttachment()

static bool impeller::ConfigureDepthAttachment | ( | const DepthAttachment & | desc,
|  | MTLRenderPassDepthAttachmentDescriptor * | attachment
| ) |  |
| static

Definition at line 82 of file render_pass_mtl.mm.

84 {
85 if (!ConfigureAttachment(desc, attachment)) {
86 return false;
87 }
88 attachment.clearDepth = desc.clear_depth;
89 return true;
90 }

References impeller::DepthAttachment::clear_depth, and ConfigureAttachment().

Referenced by ToMTLRenderPassDescriptor().

## ◆ ConfigureFBO()

static std::optional<GLuint> impeller::ConfigureFBO | ( | const ProcTableGLES & | gl,
|  | const std::shared_ptr< Texture > & | texture,
|  | GLenum | fbo_type
| ) |  |
| static

Definition at line 23 of file blit_command_gles.cc.

26 {
27 auto handle = TextureGLES::Cast(texture.get())->GetGLHandle();
28 if (!handle.has_value()) {
29 return std::nullopt;
30 }
31
32 if (TextureGLES::Cast(*texture).IsWrapped()) {
33 // The texture is attached to the default FBO, so there's no need to
34 // create/configure one.
35 gl.BindFramebuffer(fbo_type, 0);
36 return 0;
37 }
38
39 GLuint fbo;
40 gl.GenFramebuffers(1u, &fbo);
41 gl.BindFramebuffer(fbo_type, fbo);
42
43 if (!TextureGLES::Cast(*texture).SetAsFramebufferAttachment(
44 fbo_type, TextureGLES::AttachmentPoint::kColor0)) {
45 VALIDATION_LOG << "Could not attach texture to framebuffer.";
46 DeleteFBO(gl, fbo, fbo_type);
47 return std::nullopt;
48 }
49
50 if (gl.CheckFramebufferStatus(fbo_type) != GL_FRAMEBUFFER_COMPLETE) {
51 VALIDATION_LOG << "Could not create a complete frambuffer.";
52 DeleteFBO(gl, fbo, fbo_type);
53 return std::nullopt;
54 }
55
56 return fbo;
57 };

References impeller::BackendCast< TextureGLES, Texture >::Cast(), DeleteFBO(), impeller::TextureGLES::GetGLHandle(), impeller::TextureGLES::kColor0, impeller::TextureGLES::SetAsFramebufferAttachment(), and VALIDATION_LOG.

Referenced by impeller::BlitCopyTextureToTextureCommandGLES::Encode(), and impeller::BlitCopyTextureToBufferCommandGLES::Encode().

## ◆ ConfigureResolveTextureAttachment()

static bool impeller::ConfigureResolveTextureAttachment | ( | const Attachment & | desc,
|  | MTLRenderPassAttachmentDescriptor * | attachment
| ) |  |
| static

Definition at line 26 of file render_pass_mtl.mm.

28 {
29 bool needs_resolve =
30 desc.store_action == StoreAction::kMultisampleResolve ||
31 desc.store_action == StoreAction::kStoreAndMultisampleResolve;
32
33 if (needs_resolve && !desc.resolve_texture) {
34 VALIDATION_LOG << "Resolve store action specified on attachment but no "
35 "resolve texture was specified.";
36 return false;
37 }
38
39 if (desc.resolve_texture && !needs_resolve) {
40 VALIDATION_LOG << "A resolve texture was specified even though the store "
41 "action doesn't require it.";
42 return false;
43 }
44
45 if (!desc.resolve_texture) {
46 return true;
47 }
48
49 attachment.resolveTexture =
50 TextureMTL::Cast(*desc.resolve_texture).GetMTLTexture();
51
52 return true;
53 }

References impeller::BackendCast< TextureMTL, Texture >::Cast(), impeller::TextureMTL::GetMTLTexture(), kMultisampleResolve, kStoreAndMultisampleResolve, impeller::Attachment::resolve_texture, impeller::Attachment::store_action, and VALIDATION_LOG.

Referenced by ConfigureAttachment().

## ◆ ConfigureStencil() [1/2]

void impeller::ConfigureStencil | ( | const ProcTableGLES & | gl,
|  | const PipelineDescriptor & | pipeline,
|  | uint32_t | stencil_reference
| ) |  |

Definition at line 96 of file render_pass_gles.cc.

98 {
99 if (!pipeline.HasStencilAttachmentDescriptors()) {
100 gl.Disable(GL_STENCIL_TEST);
101 return;
102 }
103
104 gl.Enable(GL_STENCIL_TEST);
105 const auto& front = pipeline.GetFrontStencilAttachmentDescriptor();
106 const auto& back = pipeline.GetBackStencilAttachmentDescriptor();
107
108 if (front.has_value() && back.has_value() && front == back) {
109 ConfigureStencil(GL_FRONT_AND_BACK, gl, *front, stencil_reference);
110 return;
111 }
112 if (front.has_value()) {
113 ConfigureStencil(GL_FRONT, gl, *front, stencil_reference);
114 }
115 if (back.has_value()) {
116 ConfigureStencil(GL_BACK, gl, *back, stencil_reference);
117 }
118 }

References ConfigureStencil(), impeller::PipelineDescriptor::GetBackStencilAttachmentDescriptor(), impeller::PipelineDescriptor::GetFrontStencilAttachmentDescriptor(), and impeller::PipelineDescriptor::HasStencilAttachmentDescriptors().

## ◆ ConfigureStencil() [2/2]

void impeller::ConfigureStencil | ( | GLenum | face,
|  | const ProcTableGLES & | gl,
|  | const StencilAttachmentDescriptor & | stencil,
|  | uint32_t | stencil_reference
| ) |  |

Definition at line 78 of file render_pass_gles.cc.

81 {
82 gl.StencilOpSeparate(
83 face, // face
84 ToStencilOp(stencil.stencil_failure), // stencil fail
85 ToStencilOp(stencil.depth_failure), // depth fail
86 ToStencilOp(stencil.depth_stencil_pass) // depth stencil pass
87 );
88 gl.StencilFuncSeparate(face, // face
89 ToCompareFunction(stencil.stencil_compare), // func
90 stencil_reference, // ref
91 stencil.read_mask // mask
92 );
93 gl.StencilMaskSeparate(face, stencil.write_mask);
94 }

References impeller::StencilAttachmentDescriptor::depth_failure, impeller::StencilAttachmentDescriptor::depth_stencil_pass, impeller::StencilAttachmentDescriptor::read_mask, impeller::StencilAttachmentDescriptor::stencil_compare, impeller::StencilAttachmentDescriptor::stencil_failure, ToCompareFunction(), ToStencilOp(), and impeller::StencilAttachmentDescriptor::write_mask.

Referenced by ConfigureStencil(), and EncodeCommandsInReactor().

## ◆ ConfigureStencilAttachment()

static bool impeller::ConfigureStencilAttachment | ( | const StencilAttachment & | desc,
|  | MTLRenderPassStencilAttachmentDescriptor * | attachment
| ) |  |
| static

Definition at line 92 of file render_pass_mtl.mm.

94 {
95 if (!ConfigureAttachment(desc, attachment)) {
96 return false;
97 }
98 attachment.clearStencil = desc.clear_stencil;
99 return true;
100 }

References impeller::StencilAttachment::clear_stencil, and ConfigureAttachment().

Referenced by ToMTLRenderPassDescriptor().

## ◆ ContainsFormat()

static bool impeller::ContainsFormat | ( | const std::vector< vk::SurfaceFormatKHR > & | formats,
|  | vk::SurfaceFormatKHR | format
| ) |  |
| static

Definition at line 79 of file swapchain_impl_vk.cc.

80 {
81 return std::find(formats.begin(), formats.end(), format) != formats.end();
82 }

Referenced by ChooseSurfaceFormat().

## ◆ CreateAtlasBitmap() [1/2]

static std::shared_ptr<SkBitmap> impeller::CreateAtlasBitmap | ( | const GlyphAtlas & | atlas,
|  | const ISize & | atlas_size
| ) |  |
| static

Definition at line 215 of file typographer_context_skia.cc.

216 {
217 TRACE_EVENT0("impeller", __FUNCTION__);
218 auto bitmap = std::make_shared<SkBitmap>();
219 SkImageInfo image_info;
220
221 switch (atlas.GetType()) {
222 case GlyphAtlas::Type::kAlphaBitmap:
223 image_info = SkImageInfo::MakeA8(atlas_size.width, atlas_size.height);
224 break;
225 case GlyphAtlas::Type::kColorBitmap:
226 image_info =
227 SkImageInfo::MakeN32Premul(atlas_size.width, atlas_size.height);
228 break;
229 }
230
231 if (!bitmap->tryAllocPixels(image_info)) {
232 return nullptr;
233 }
234
235 auto surface = SkSurfaces::WrapPixels(bitmap->pixmap());
236 if (!surface) {
237 return nullptr;
238 }
239 auto canvas = surface->getCanvas();
240 if (!canvas) {
241 return nullptr;
242 }
243
244 bool has_color = atlas.GetType() == GlyphAtlas::Type::kColorBitmap;
245
246 atlas.IterateGlyphs([canvas, has_color](const ScaledFont& scaled_font,
247 const Glyph& glyph,
248 const Rect& location) -> bool {
249 DrawGlyph(canvas, scaled_font, glyph, location, has_color);
250 return true;
251 });
252
253 return bitmap;
254 }

References DrawGlyph(), impeller::GlyphAtlas::GetType(), impeller::TSize< T >::height, impeller::GlyphAtlas::IterateGlyphs(), impeller::GlyphAtlas::kAlphaBitmap, impeller::GlyphAtlas::kColorBitmap, and impeller::TSize< T >::width.

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ CreateAtlasBitmap() [2/2]

static std::shared_ptr<BitmapSTB> impeller::CreateAtlasBitmap | ( | const GlyphAtlas & | atlas,
|  | const ISize & | atlas_size
| ) |  |
| static

Definition at line 291 of file typographer_context_stb.cc.

292 {
293 TRACE_EVENT0("impeller", __FUNCTION__);
294
295 size_t bytes_per_pixel = 1;
296 if (atlas.GetType() == GlyphAtlas::Type::kColorBitmap &&
297 !DISABLE_COLOR_FONT_SUPPORT) {
298 bytes_per_pixel = kColorFontBitsPerPixel;
299 }
300 auto bitmap = std::make_shared<BitmapSTB>(atlas_size.width, atlas_size.height,
301 bytes_per_pixel);
302
303 bool has_color = atlas.GetType() == GlyphAtlas::Type::kColorBitmap;
304
305 atlas.IterateGlyphs([&bitmap, has_color](const ScaledFont& scaled_font,
306 const Glyph& glyph,
307 const Rect& location) -> bool {
308 DrawGlyph(bitmap.get(), scaled_font, glyph, location, has_color);
309 return true;
310 });
311
312 return bitmap;
313 }

References DISABLE_COLOR_FONT_SUPPORT, DrawGlyph(), impeller::GlyphAtlas::GetType(), impeller::TSize< T >::height, impeller::GlyphAtlas::IterateGlyphs(), impeller::GlyphAtlas::kColorBitmap, kColorFontBitsPerPixel, and impeller::TSize< T >::width.

## ◆ CreateAttachmentDescription() [1/2]

static vk::AttachmentDescription impeller::CreateAttachmentDescription | ( | const Attachment & | attachment,
|  | const std::shared_ptr< Texture > Attachment::* | texture_ptr,
|  | bool | supports_framebuffer_fetch
| ) |  |
| static

Definition at line 31 of file render_pass_vk.cc.

34 {
35 const auto& texture = attachment.*texture_ptr;
36 if (!texture) {
37 return {};
38 }
39 const auto& texture_vk = TextureVK::Cast(*texture);
40 const auto& desc = texture->GetTextureDescriptor();
41 auto current_layout = texture_vk.GetLayout();
42
43 auto load_action = attachment.load_action;
44 auto store_action = attachment.store_action;
45
46 if (current_layout == vk::ImageLayout::eUndefined) {
47 load_action = LoadAction::kClear;
48 }
49
50 if (desc.storage_mode == StorageMode::kDeviceTransient) {
51 store_action = StoreAction::kDontCare;
52 } else if (texture_ptr == &Attachment::resolve_texture) {
53 store_action = StoreAction::kStore;
54 }
55
56 // Always insert a barrier to transition to color attachment optimal.
57 if (current_layout != vk::ImageLayout::ePresentSrcKHR &&
58 current_layout != vk::ImageLayout::eUndefined) {
59 // Note: This should incur a barrier.
60 current_layout = vk::ImageLayout::eGeneral;
61 }
62
63 return CreateAttachmentDescription(desc.format, //
64 desc.sample_count, //
65 load_action, //
66 store_action, //
67 current_layout,
68 supports_framebuffer_fetch //
69 );
70 }

References impeller::BackendCast< TextureVK, Texture >::Cast(), CreateAttachmentDescription(), kClear, kDeviceTransient, kDontCare, kStore, impeller::Attachment::load_action, impeller::Attachment::resolve_texture, and impeller::Attachment::store_action.

## ◆ CreateAttachmentDescription() [2/2]

constexpr vk::AttachmentDescription impeller::CreateAttachmentDescription | ( | PixelFormat | format,
|  | SampleCount | sample_count,
|  | LoadAction | load_action,
|  | StoreAction | store_action,
|  | vk::ImageLayout | current_layout,
|  | bool | supports_framebuffer_fetch
| ) |  |
| constexpr

Definition at line 429 of file formats_vk.h.

435 {
436 vk::AttachmentDescription vk_attachment;
437
438 vk_attachment.format = ToVKImageFormat(format);
439 vk_attachment.samples = ToVKSampleCount(sample_count);
440
441 // The Vulkan spec has somewhat complicated rules for when these ops are used
442 // and ignored. Just set safe defaults.
443 vk_attachment.loadOp = vk::AttachmentLoadOp::eDontCare;
444 vk_attachment.storeOp = vk::AttachmentStoreOp::eDontCare;
445 vk_attachment.stencilLoadOp = vk::AttachmentLoadOp::eDontCare;
446 vk_attachment.stencilStoreOp = vk::AttachmentStoreOp::eDontCare;
447
448 const auto kind = AttachmentKindFromFormat(format);
449
450 switch (kind) {
451 case AttachmentKind::kColor:
452 // If the attachment uses a color format, then loadOp and storeOp are
453 // used, and stencilLoadOp and stencilStoreOp are ignored.
454 vk_attachment.loadOp = ToVKAttachmentLoadOp(load_action);
455 vk_attachment.storeOp = ToVKAttachmentStoreOp(store_action);
456 break;
457 case AttachmentKind::kDepth:
458 case AttachmentKind::kDepthStencil:
459 // If the format has depth and/or stencil components, loadOp and storeOp
460 // apply only to the depth data, while stencilLoadOp and stencilStoreOp
461 // define how the stencil data is handled.
462 vk_attachment.loadOp = ToVKAttachmentLoadOp(load_action);
463 vk_attachment.storeOp = ToVKAttachmentStoreOp(store_action);
464 [[fallthrough]];
465 case AttachmentKind::kStencil:
466 vk_attachment.stencilLoadOp = ToVKAttachmentLoadOp(load_action);
467 vk_attachment.stencilStoreOp = ToVKAttachmentStoreOp(store_action);
468 break;
469 }
470
471 switch (kind) {
472 case AttachmentKind::kColor:
473 vk_attachment.initialLayout = current_layout;
474 if (supports_framebuffer_fetch) {
475 vk_attachment.finalLayout = vk::ImageLayout::eGeneral;
476 } else {
477 vk_attachment.finalLayout = vk::ImageLayout::eColorAttachmentOptimal;
478 }
479 break;
480 case AttachmentKind::kDepth:
481 case AttachmentKind::kStencil:
482 case AttachmentKind::kDepthStencil:
483 // Separate depth stencil layouts feature is only available in Vulkan 1.2.
484 vk_attachment.initialLayout = current_layout;
485 vk_attachment.finalLayout =
486 vk::ImageLayout::eDepthStencilAttachmentOptimal;
487 break;
488 }
489
490 return vk_attachment;
491 }

References AttachmentKindFromFormat(), kColor, kDepth, kDepthStencil, kStencil, ToVKAttachmentLoadOp(), ToVKAttachmentStoreOp(), ToVKImageFormat(), and ToVKSampleCount().

Referenced by CreateAttachmentDescription(), and CreatePlaceholderAttachmentDescription().

## ◆ CreateBufferPool()

static PoolVMA impeller::CreateBufferPool | ( | VmaAllocator | allocator | ) |
| static

Definition at line 48 of file allocator_vk.cc.

48 {
49 vk::BufferCreateInfo buffer_info;
50 buffer_info.usage = vk::BufferUsageFlagBits::eVertexBuffer |
51 vk::BufferUsageFlagBits::eIndexBuffer |
52 vk::BufferUsageFlagBits::eUniformBuffer |
53 vk::BufferUsageFlagBits::eStorageBuffer |
54 vk::BufferUsageFlagBits::eTransferSrc |
55 vk::BufferUsageFlagBits::eTransferDst;
56 buffer_info.size = 1u; // doesn't matter
57 buffer_info.sharingMode = vk::SharingMode::eExclusive;
58 auto buffer_info_native =
59 static_cast<vk::BufferCreateInfo::NativeType>(buffer_info);
60
61 VmaAllocationCreateInfo allocation_info = {};
62 allocation_info.usage = VMA_MEMORY_USAGE_AUTO;
63 allocation_info.preferredFlags = static_cast<VkMemoryPropertyFlags>(
64 ToVKBufferMemoryPropertyFlags(StorageMode::kHostVisible));
65 allocation_info.flags =
66 ToVmaAllocationBufferCreateFlags(StorageMode::kHostVisible);
67
68 uint32_t memTypeIndex;
69 auto result = vk::Result{vmaFindMemoryTypeIndexForBufferInfo(
70 allocator, &buffer_info_native, &allocation_info, &memTypeIndex)};
71 if (result != vk::Result::eSuccess) {
72 return {};
73 }
74
75 VmaPoolCreateInfo pool_create_info = {};
76 pool_create_info.memoryTypeIndex = memTypeIndex;
77 pool_create_info.flags = VMA_POOL_CREATE_IGNORE_BUFFER_IMAGE_GRANULARITY_BIT;
78
79 VmaPool pool = {};
80 result = vk::Result{::vmaCreatePool(allocator, &pool_create_info, &pool)};
81 if (result != vk::Result::eSuccess) {
82 return {};
83 }
84 return {allocator, pool};
85 }

References kHostVisible, ToVKBufferMemoryPropertyFlags(), and ToVmaAllocationBufferCreateFlags().

## ◆ CreateCommandBuffer()

static id<MTLCommandBuffer> impeller::CreateCommandBuffer | ( | id< MTLCommandQueue > | queue | ) |
| static

Definition at line 118 of file command_buffer_mtl.mm.

118 {
119 #ifndef FLUTTER_RELEASE
120 if (@available(iOS 14.0, macOS 11.0, *)) {
121 auto desc = [[MTLCommandBufferDescriptor alloc] init];
122 // Degrades CPU performance slightly but is well worth the cost for typical
123 // Impeller workloads.
124 desc.errorOptions = MTLCommandBufferErrorOptionEncoderExecutionStatus;
125 return [queue commandBufferWithDescriptor:desc];
126 }
127 #endif // FLUTTER_RELEASE
128 return [queue commandBuffer];
129 }

## ◆ CreateCompatRenderPassForPipeline()

static vk::UniqueRenderPass impeller::CreateCompatRenderPassForPipeline | ( | const vk::Device & | device,
|  | const PipelineDescriptor & | desc,
|  | bool | supports_framebuffer_fetch
| ) |  |
| static

Render Pass We are NOT going to use the same render pass with the framebuffer (later) and the graphics pipeline (here). Instead, we are going to ensure that the sub-passes are compatible. To see the compatibility rules, see the Vulkan spec: https://www.khronos.org/registry/vulkan/specs/1.3-extensions/html/chap8.html#renderpass-compatibility

Definition at line 83 of file pipeline_library_vk.cc.

86 {
87 std::vector<vk::AttachmentDescription> attachments;
88
89 std::vector<vk::AttachmentReference> color_refs;
90 std::vector<vk::AttachmentReference> subpass_color_ref;
91 vk::AttachmentReference depth_stencil_ref = kUnusedAttachmentReference;
92
93 color_refs.resize(desc.GetMaxColorAttacmentBindIndex() + 1,
94 kUnusedAttachmentReference);
95
96 const auto sample_count = desc.GetSampleCount();
97
98 for (const auto& [bind_point, color] : desc.GetColorAttachmentDescriptors()) {
99 color_refs[bind_point] =
100 vk::AttachmentReference{static_cast<uint32_t>(attachments.size()),
101 vk::ImageLayout::eColorAttachmentOptimal};
102 attachments.emplace_back(
103 CreatePlaceholderAttachmentDescription(color.format, sample_count));
104 }
105 subpass_color_ref.push_back(vk::AttachmentReference{
106 static_cast<uint32_t>(0), vk::ImageLayout::eColorAttachmentOptimal});
107
108 if (auto depth = desc.GetDepthStencilAttachmentDescriptor();
109 depth.has_value()) {
110 depth_stencil_ref = vk::AttachmentReference{
111 static_cast<uint32_t>(attachments.size()),
112 vk::ImageLayout::eDepthStencilAttachmentOptimal};
113 attachments.emplace_back(CreatePlaceholderAttachmentDescription(
114 desc.GetDepthPixelFormat(), sample_count));
115 }
116 if (desc.HasStencilAttachmentDescriptors()) {
117 depth_stencil_ref = vk::AttachmentReference{
118 static_cast<uint32_t>(attachments.size()),
119 vk::ImageLayout::eDepthStencilAttachmentOptimal};
120 attachments.emplace_back(CreatePlaceholderAttachmentDescription(
121 desc.GetStencilPixelFormat(), sample_count));
122 }
123
124 vk::SubpassDescription subpass_desc;
125 subpass_desc.pipelineBindPoint = vk::PipelineBindPoint::eGraphics;
126
127 // If the device supports framebuffer fetch, compatibility pipelines are
128 // always created with the self reference and rasterization order flag. This
129 // ensures that all compiled pipelines are compatible with a render pass that
130 // contains a framebuffer fetch shader (advanced blends).
131 std::vector<vk::SubpassDependency> subpass_dependencies;
132 if (supports_framebuffer_fetch) {
133 subpass_desc.setFlags(vk::SubpassDescriptionFlagBits::
134 eRasterizationOrderAttachmentColorAccessARM);
135 subpass_desc.setInputAttachments(subpass_color_ref);
136 }
137 subpass_desc.setColorAttachments(color_refs);
138 subpass_desc.setPDepthStencilAttachment(&depth_stencil_ref);
139
140 vk::RenderPassCreateInfo render_pass_desc;
141 render_pass_desc.setAttachments(attachments);
142 render_pass_desc.setPSubpasses(&subpass_desc);
143 render_pass_desc.setSubpassCount(1u);
144 render_pass_desc.setDependencies(subpass_dependencies);
145
146 auto [result, pass] = device.createRenderPassUnique(render_pass_desc);
147 if (result != vk::Result::eSuccess) {
148 VALIDATION_LOG << "Failed to create render pass for pipeline '"
149 << desc.GetLabel() << "'. Error: " << vk::to_string(result);
150 return {};
151 }
152
153 // This pass is not used with the render pass. It is only necessary to tell
154 // Vulkan the expected render pass layout. The actual pass will be created
155 // later during render pass setup and will need to be compatible with this
156 // one.
157 ContextVK::SetDebugName(device, pass.get(),
158 "Compat Render Pass: " + desc.GetLabel());
159
160 return std::move(pass);
161 }

References CreatePlaceholderAttachmentDescription(), impeller::PipelineDescriptor::GetColorAttachmentDescriptors(), impeller::PipelineDescriptor::GetDepthPixelFormat(), impeller::PipelineDescriptor::GetDepthStencilAttachmentDescriptor(), impeller::PipelineDescriptor::GetLabel(), impeller::PipelineDescriptor::GetMaxColorAttacmentBindIndex(), impeller::PipelineDescriptor::GetSampleCount(), impeller::PipelineDescriptor::GetStencilPixelFormat(), impeller::PipelineDescriptor::HasStencilAttachmentDescriptors(), kUnusedAttachmentReference, impeller::ContextVK::SetDebugName(), and VALIDATION_LOG.

## ◆ CreateDefaultPipeline()

template<typename PipelineT >

static std::unique_ptr<PipelineT> impeller::CreateDefaultPipeline | ( | const Context & | context | ) |
| static

Definition at line 157 of file content_context.cc.

158 {
159 auto desc = PipelineT::Builder::MakeDefaultPipelineDescriptor(context);
160 if (!desc.has_value()) {
161 return nullptr;
162 }
163 // Apply default ContentContextOptions to the descriptor.
164 const auto default_color_format =
165 context.GetCapabilities()->GetDefaultColorFormat();
166 ContentContextOptions{.sample_count = SampleCount::kCount4,
167 .primitive_type = PrimitiveType::kTriangleStrip,
168 .color_attachment_pixel_format = default_color_format}
169 .ApplyToPipelineDescriptor(*desc);
170 return std::make_unique<PipelineT>(context, desc);
171 }

References impeller::Context::GetCapabilities(), kCount4, kTriangleStrip, and impeller::ContentContextOptions::sample_count.

## ◆ CreateDepthStencilDescriptor()

static id<MTLDepthStencilState> impeller::CreateDepthStencilDescriptor | ( | const PipelineDescriptor & | desc,
|  | id< MTLDevice > | device
| ) |  |
| static

Definition at line 94 of file pipeline_library_mtl.mm.

96 {
97 auto descriptor = ToMTLDepthStencilDescriptor(
98 desc.GetDepthStencilAttachmentDescriptor(), //
99 desc.GetFrontStencilAttachmentDescriptor(), //
100 desc.GetBackStencilAttachmentDescriptor() //
101 );
102 return [device newDepthStencilStateWithDescriptor:descriptor];
103 }

References impeller::PipelineDescriptor::GetBackStencilAttachmentDescriptor(), impeller::PipelineDescriptor::GetDepthStencilAttachmentDescriptor(), impeller::PipelineDescriptor::GetFrontStencilAttachmentDescriptor(), and ToMTLDepthStencilDescriptor().

## ◆ CreateDeviceBuffer()

template<typename T >

static std::shared_ptr<DeviceBuffer> impeller::CreateDeviceBuffer | ( | const std::shared_ptr< Context > & | context,
|  | const std::string & | label,
|  | StorageMode | storage_mode = `StorageMode::kDevicePrivate`
| ) |  |
| static

Definition at line 20 of file compute_tessellator.cc.

23 {
24 DeviceBufferDescriptor desc;
25 desc.storage_mode = storage_mode;
26 desc.size = sizeof(T);
27 auto buffer = context->GetResourceAllocator()->CreateBuffer(desc);
28 buffer->SetLabel(label);
29 return buffer;
30 }

References impeller::DeviceBufferDescriptor::size, and impeller::DeviceBufferDescriptor::storage_mode.

## ◆ CreateGLHandle()

static std::optional<GLuint> impeller::CreateGLHandle | ( | const ProcTableGLES & | gl,
|  | HandleType | type
| ) |  |
| static

Definition at line 84 of file reactor_gles.cc.

85 {
86 GLuint handle = GL_NONE;
87 switch (type) {
88 case HandleType::kUnknown:
89 return std::nullopt;
90 case HandleType::kTexture:
91 gl.GenTextures(1u, &handle);
92 return handle;
93 case HandleType::kBuffer:
94 gl.GenBuffers(1u, &handle);
95 return handle;
96 case HandleType::kProgram:
97 return gl.CreateProgram();
98 case HandleType::kRenderBuffer:
99 gl.GenRenderbuffers(1u, &handle);
100 return handle;
101 case HandleType::kFrameBuffer:
102 gl.GenFramebuffers(1u, &handle);
103 return handle;
104 }
105 return std::nullopt;
106 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kTexture, and kUnknown.

Referenced by impeller::ReactorGLES::CreateHandle().

## ◆ CreateGradientBuffer()

GradientData impeller::CreateGradientBuffer | ( | const std::vector< Color > & | colors,
|  | const std::vector< Scalar > & | stops
| ) |  |

Populate a vector with the interpolated color bytes for the linear gradient described by colors and stops.

Parameters

  colors |
  stops |

Returns
  GradientData

Definition at line 20 of file gradient.cc.

21 {
22 FML_DCHECK(stops.size() == colors.size());
23
24 uint32_t texture_size;
25 if (stops.size() == 2) {
26 texture_size = colors.size();
27 } else {
28 auto minimum_delta = 1.0;
29 for (size_t i = 1; i < stops.size(); i++) {
30 auto value = stops[i] - stops[i - 1];
31 // Smaller than kEhCloseEnough
32 if (value < 0.0001) {
33 continue;
34 }
35 if (value < minimum_delta) {
36 minimum_delta = value;
37 }
38 }
39 // Avoid creating textures that are absurdly large due to stops that are
40 // very close together.
41 // TODO(jonahwilliams): this should use a platform specific max texture
42 // size.
43 texture_size = std::min(
44 static_cast<uint32_t>(std::round(1.0 / minimum_delta)) + 1, 1024u);
45 }
46 GradientData data = {
47 .color_bytes = {},
48 .texture_size = texture_size,
49 };
50 data.color_bytes.reserve(texture_size * 4);
51
52 if (texture_size == colors.size() && colors.size() <= 1024) {
53 for (auto i = 0u; i < colors.size(); i++) {
54 AppendColor(colors[i], &data);
55 }
56 } else {
57 Color previous_color = colors[0];
58 auto previous_stop = 0.0;
59 auto previous_color_index = 0;
60
61 // The first index is always equal to the first color, exactly.
62 AppendColor(previous_color, &data);
63
64 for (auto i = 1u; i < texture_size - 1; i++) {
65 auto scaled_i = i / (texture_size - 1.0);
66 Color next_color = colors[previous_color_index + 1];
67 auto next_stop = stops[previous_color_index + 1];
68 // We're almost exactly equal to the next stop.
69 if (ScalarNearlyEqual(scaled_i, next_stop)) {
70 AppendColor(next_color, &data);
71
72 previous_color = next_color;
73 previous_stop = next_stop;
74 previous_color_index += 1;
75 } else if (scaled_i < next_stop) {
76 // We're still between the current stop and the next stop.
77 auto t = (scaled_i - previous_stop) / (next_stop - previous_stop);
78 auto mixed_color = Color::Lerp(previous_color, next_color, t);
79
80 AppendColor(mixed_color, &data);
81 } else {
82 // We've slightly overshot the previous stop.
83 previous_color = next_color;
84 previous_stop = next_stop;
85 previous_color_index += 1;
86 next_color = colors[previous_color_index + 1];
87 auto next_stop = stops[previous_color_index + 1];
88
89 auto t = (scaled_i - previous_stop) / (next_stop - previous_stop);
90 auto mixed_color = Color::Lerp(previous_color, next_color, t);
91
92 AppendColor(mixed_color, &data);
93 }
94 }
95 // The last index is always equal to the last color, exactly.
96 AppendColor(colors.back(), &data);
97 }
98 return data;
99 }

References AppendColor(), impeller::GradientData::color_bytes, impeller::Color::Lerp(), and ScalarNearlyEqual().

Referenced by impeller::testing::TEST().

## ◆ CreateGradientColors()

std::vector< StopData > impeller::CreateGradientColors | ( | const std::vector< Color > & | colors,
|  | const std::vector< Scalar > & | stops
| ) |  |

Populate a vector with the color and stop data for a gradient.

Parameters

  colors |
  stops |

Returns
  StopData

Definition at line 45 of file gradient_generator.cc.

46 {
47 FML_DCHECK(stops.size() == colors.size());
48
49 std::vector<StopData> result(stops.size());
50 for (auto i = 0u; i < stops.size(); i++) {
51 result[i] = {.color = colors[i], .stop = stops[i]};
52 }
53 return result;
54 }

## ◆ CreateGradientTexture()

std::shared_ptr< Texture > impeller::CreateGradientTexture | ( | const GradientData & | gradient_data,
|  | const std::shared_ptr< impeller::Context > & | context
| ) |  |

Create a host visible texture that contains the gradient defined by the provided gradient data.

Definition at line 17 of file gradient_generator.cc.

19 {
20 if (gradient_data.texture_size == 0) {
21 FML_DLOG(ERROR) << "Invalid gradient data.";
22 return nullptr;
23 }
24
25 impeller::TextureDescriptor texture_descriptor;
26 texture_descriptor.storage_mode = impeller::StorageMode::kHostVisible;
27 texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
28 texture_descriptor.size = {gradient_data.texture_size, 1};
29 auto texture =
30 context->GetResourceAllocator()->CreateTexture(texture_descriptor);
31 if (!texture) {
32 FML_DLOG(ERROR) << "Could not create Impeller texture.";
33 return nullptr;
34 }
35
36 auto mapping = std::make_shared<fml::DataMapping>(gradient_data.color_bytes);
37 if (!texture->SetContents(mapping)) {
38 FML_DLOG(ERROR) << "Could not copy contents into Impeller texture.";
39 return nullptr;
40 }
41 texture->SetLabel(impeller::SPrintF("Gradient(%p)", texture.get()).c_str());
42 return texture;
43 }

References impeller::GradientData::color_bytes, impeller::TextureDescriptor::format, kHostVisible, kR8G8B8A8UNormInt, impeller::TextureDescriptor::size, SPrintF(), impeller::TextureDescriptor::storage_mode, and impeller::GradientData::texture_size.

## ◆ CreateMappingFromAllocation()

std::shared_ptr< fml::Mapping > impeller::CreateMappingFromAllocation | ( | const std::shared_ptr< Allocation > & | allocation | ) |

Definition at line 99 of file allocation.cc.

100 {
101 if (!allocation) {
102 return nullptr;
103 }
104 return std::make_shared<fml::NonOwnedMapping>(
105 reinterpret_cast<const uint8_t*>(allocation->GetBuffer()), //
106 allocation->GetLength(), //
107 [allocation](auto, auto) {} //
108 );
109 }

Referenced by CreateMappingWithCopy(), and impeller::testing::TEST_P().

## ◆ CreateMappingWithCopy()

std::shared_ptr< fml::Mapping > impeller::CreateMappingWithCopy | ( | const uint8_t * | contents,
|  | size_t | length
| ) |  |

Definition at line 83 of file allocation.cc.

84 {
85 if (contents == nullptr) {
86 return nullptr;
87 }
88
89 auto allocation = std::make_shared<Allocation>();
90 if (!allocation->Truncate(length)) {
91 return nullptr;
92 }
93
94 std::memmove(allocation->GetBuffer(), contents, length);
95
96 return CreateMappingFromAllocation(allocation);
97 }

References CreateMappingFromAllocation().

## ◆ CreateMappingWithString() [1/2]

std::shared_ptr<fml::Mapping> impeller::CreateMappingWithString | ( | std::shared_ptr< const std::string > | string | ) |

## ◆ CreateMappingWithString() [2/2]

std::shared_ptr< fml::Mapping > impeller::CreateMappingWithString | ( | std::string | string | ) |

Definition at line 111 of file allocation.cc.

111 {
112 auto buffer = std::make_shared<std::string>(std::move(string));
113 return std::make_unique<fml::NonOwnedMapping>(
114 reinterpret_cast<const uint8_t*>(buffer->c_str()), buffer->length(),
115 [buffer](auto, auto) {});
116 }

Referenced by impeller::compiler::Compiler::Compiler().

## ◆ CreateMetalCommandQueue()

static id<MTLCommandQueue> impeller::CreateMetalCommandQueue | ( | id< MTLDevice > | device | ) |
| static

Definition at line 226 of file context_mtl.mm.

226 {
227 auto command_queue = device.newCommandQueue;
228 if (!command_queue) {
229 VALIDATION_LOG << "Could not set up the command queue.";
230 return nullptr;
231 }
232 command_queue.label = @"Impeller Command Queue";
233 return command_queue;
234 }

References VALIDATION_LOG.

Referenced by impeller::ContextMTL::Create().

## ◆ CreateMetalDevice()

static id<MTLDevice> impeller::CreateMetalDevice | ( |  | ) |
| static

Definition at line 222 of file context_mtl.mm.

222 {
223 return ::MTLCreateSystemDefaultDevice();
224 }

Referenced by impeller::ContextMTL::Create().

## ◆ CreatePathBuilder()

IMPELLER_API PathBuilder * impeller::CreatePathBuilder | ( |  | ) |

Definition at line 10 of file tessellator.cc.

10 {
11 return new PathBuilder();
12 }

## ◆ CreatePipelineFuture() [1/2]

PipelineFuture< ComputePipelineDescriptor > impeller::CreatePipelineFuture | ( | const Context & | context,
|  | std::optional< ComputePipelineDescriptor > | desc
| ) |  |

Definition at line 35 of file pipeline.cc.

37 {
38 if (!context.IsValid()) {
39 return {
40 desc,
41 RealizedFuture<std::shared_ptr<Pipeline<ComputePipelineDescriptor>>>(
42 nullptr)};
43 }
44
45 return context.GetPipelineLibrary()->GetPipeline(std::move(desc));
46 }

References impeller::Context::GetPipelineLibrary(), and impeller::Context::IsValid().

## ◆ CreatePipelineFuture() [2/2]

PipelineFuture< PipelineDescriptor > impeller::CreatePipelineFuture | ( | const Context & | context,
|  | std::optional< PipelineDescriptor > | desc
| ) |  |

Definition at line 24 of file pipeline.cc.

26 {
27 if (!context.IsValid()) {
28 return {desc, RealizedFuture<std::shared_ptr<Pipeline<PipelineDescriptor>>>(
29 nullptr)};
30 }
31
32 return context.GetPipelineLibrary()->GetPipeline(std::move(desc));
33 }

References impeller::Context::GetPipelineLibrary(), and impeller::Context::IsValid().

## ◆ CreatePlaceholderAttachmentDescription()

static vk::AttachmentDescription impeller::CreatePlaceholderAttachmentDescription | ( | PixelFormat | format,
|  | SampleCount | sample_count
| ) |  |
| static

Creates an attachment description that does just enough to ensure render pass compatibility with the pass associated later with the framebuffer.

See https://www.khronos.org/registry/vulkan/specs/1.3-extensions/html/chap8.html#renderpass-compatibility

Definition at line 61 of file pipeline_library_vk.cc.

63 {
64 // Load store ops are immaterial for pass compatibility. The right ops will be
65 // picked up when the pass associated with framebuffer.
66 return CreateAttachmentDescription(format, //
67 sample_count, //
68 LoadAction::kDontCare, //
69 StoreAction::kDontCare, //
70 vk::ImageLayout::eUndefined, //
71 false //
72 );
73 }

References CreateAttachmentDescription(), and kDontCare.

Referenced by CreateCompatRenderPassForPipeline().

## ◆ CreateRenderTarget()

static EntityPassTarget impeller::CreateRenderTarget | ( | ContentContext & | renderer,
|  | ISize | size,
|  | bool | readable,
|  | const Color & | clear_color
| ) |  |
| static

All of the load/store actions are managed by `InlinePassContext` when `RenderPasses` are created, so we just set them to `kDontCare` here. What's important is the `StorageMode` of the textures, which cannot be changed for the lifetime of the textures.

Definition at line 250 of file entity_pass.cc.

253 {
254 auto context = renderer.GetContext();
255
256 /// All of the load/store actions are managed by `InlinePassContext` when
257 /// `RenderPasses` are created, so we just set them to `kDontCare` here.
258 /// What's important is the `StorageMode` of the textures, which cannot be
259 /// changed for the lifetime of the textures.
260
261 RenderTarget target;
262 if (context->GetCapabilities()->SupportsOffscreenMSAA()) {
263 target = RenderTarget::CreateOffscreenMSAA(
264 *context, // context
265 *renderer.GetRenderTargetCache(), // allocator
266 size, // size
267 "EntityPass", // label
268 RenderTarget::AttachmentConfigMSAA{
269 .storage_mode = StorageMode::kDeviceTransient,
270 .resolve_storage_mode = StorageMode::kDevicePrivate,
271 .load_action = LoadAction::kDontCare,
272 .store_action = StoreAction::kMultisampleResolve,
273 .clear_color = clear_color}, // color_attachment_config
274 GetDefaultStencilConfig(readable) // stencil_attachment_config
275 );
276 } else {
277 target = RenderTarget::CreateOffscreen(
278 *context, // context
279 *renderer.GetRenderTargetCache(), // allocator
280 size, // size
281 "EntityPass", // label
282 RenderTarget::AttachmentConfig{
283 .storage_mode = StorageMode::kDevicePrivate,
284 .load_action = LoadAction::kDontCare,
285 .store_action = StoreAction::kDontCare,
286 .clear_color = clear_color,
287 }, // color_attachment_config
288 GetDefaultStencilConfig(readable) // stencil_attachment_config
289 );
290 }
291
292 return EntityPassTarget(
293 target, renderer.GetDeviceCapabilities().SupportsReadFromResolve(),
294 renderer.GetDeviceCapabilities().SupportsImplicitResolvingMSAA());
295 }

References impeller::RenderTarget::CreateOffscreen(), impeller::RenderTarget::CreateOffscreenMSAA(), impeller::ContentContext::GetContext(), GetDefaultStencilConfig(), impeller::ContentContext::GetDeviceCapabilities(), impeller::ContentContext::GetRenderTargetCache(), impeller::Capabilities::SupportsImplicitResolvingMSAA(), and impeller::Capabilities::SupportsReadFromResolve().

## ◆ CreateTextureForDecompressedImage()

static std::shared_ptr<Texture> impeller::CreateTextureForDecompressedImage | ( | const std::shared_ptr< Context > & | context,
|  | DecompressedImage & | decompressed_image,
|  | bool | enable_mipmapping
| ) |  |
| static

Definition at line 384 of file playground.cc.

387 {
388 // TODO(https://github.com/flutter/flutter/issues/123468): copying buffers to
389 // textures is not implemented for GLES.
390 if (context->GetCapabilities()->SupportsBufferToTextureBlits()) {
391 impeller::TextureDescriptor texture_descriptor;
392 texture_descriptor.storage_mode = impeller::StorageMode::kDevicePrivate;
393 texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
394 texture_descriptor.size = decompressed_image.GetSize();
395 texture_descriptor.mip_count =
396 enable_mipmapping ? decompressed_image.GetSize().MipCount() : 1u;
397
398 auto dest_texture =
399 context->GetResourceAllocator()->CreateTexture(texture_descriptor);
400 if (!dest_texture) {
401 FML_DLOG(ERROR) << "Could not create Impeller texture.";
402 return nullptr;
403 }
404
405 auto buffer = context->GetResourceAllocator()->CreateBufferWithCopy(
406 *decompressed_image.GetAllocation().get());
407
408 dest_texture->SetLabel(
409 impeller::SPrintF("ui.Image(%p)", dest_texture.get()).c_str());
410
411 auto command_buffer = context->CreateCommandBuffer();
412 if (!command_buffer) {
413 FML_DLOG(ERROR)
414 << "Could not create command buffer for mipmap generation.";
415 return nullptr;
416 }
417 command_buffer->SetLabel("Mipmap Command Buffer");
418
419 auto blit_pass = command_buffer->CreateBlitPass();
420 if (!blit_pass) {
421 FML_DLOG(ERROR) << "Could not create blit pass for mipmap generation.";
422 return nullptr;
423 }
424 blit_pass->SetLabel("Mipmap Blit Pass");
425 blit_pass->AddCopy(buffer->AsBufferView(), dest_texture);
426 if (enable_mipmapping) {
427 blit_pass->GenerateMipmap(dest_texture);
428 }
429
430 blit_pass->EncodeCommands(context->GetResourceAllocator());
431 if (!command_buffer->SubmitCommands()) {
432 FML_DLOG(ERROR) << "Failed to submit blit pass command buffer.";
433 return nullptr;
434 }
435 return dest_texture;
436 } else { // Doesn't support buffer-to-texture blits.
437 auto texture_descriptor = TextureDescriptor{};
438 texture_descriptor.storage_mode = StorageMode::kHostVisible;
439 texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
440 texture_descriptor.size = decompressed_image.GetSize();
441 texture_descriptor.mip_count =
442 enable_mipmapping ? decompressed_image.GetSize().MipCount() : 1u;
443
444 auto texture =
445 context->GetResourceAllocator()->CreateTexture(texture_descriptor);
446 if (!texture) {
447 VALIDATION_LOG << "Could not allocate texture for fixture.";
448 return nullptr;
449 }
450
451 auto uploaded = texture->SetContents(decompressed_image.GetAllocation());
452 if (!uploaded) {
453 VALIDATION_LOG
454 << "Could not upload texture to device memory for fixture.";
455 return nullptr;
456 }
457 return texture;
458 }
459 }

References impeller::TextureDescriptor::format, impeller::DecompressedImage::GetAllocation(), impeller::DecompressedImage::GetSize(), kDevicePrivate, kHostVisible, kR8G8B8A8UNormInt, impeller::TextureDescriptor::mip_count, impeller::TSize< T >::MipCount(), impeller::TextureDescriptor::size, SPrintF(), impeller::TextureDescriptor::storage_mode, and VALIDATION_LOG.

Referenced by impeller::Playground::CreateTextureForMapping().

## ◆ CreateTextureFromDrawableFuture()

std::shared_ptr< TextureMTL > impeller::CreateTextureFromDrawableFuture | ( | TextureDescriptor | desc,
|  | const std::shared_future< id< CAMetalDrawable >> & | drawble_future
| ) |  |

Create a TextureMTL from a deferred drawable.

       This function is safe to call multiple times and will only call
       nextDrawable once.

Definition at line 41 of file lazy_drawable_holder.mm.

43 {
44 return std::make_shared<TextureMTL>(
45 desc, [drawble_future]() { return drawble_future.get().texture; },
46 /*wrapped=*/false, /*drawable=*/true);
47 }

Referenced by impeller::testing::TEST().

## ◆ CreateUniformMemberKey() [1/2]

static std::string impeller::CreateUniformMemberKey | ( | const std::string & | non_struct_member | ) |
| static

Definition at line 78 of file buffer_bindings_gles.cc.

79 {
80 return NormalizeUniformKey(non_struct_member);
81 }

References NormalizeUniformKey().

## ◆ CreateUniformMemberKey() [2/2]

static std::string impeller::CreateUniformMemberKey | ( | const std::string & | struct_name,
|  | const std::string & | member,
|  | bool | is_array
| ) |  |
| static

Definition at line 62 of file buffer_bindings_gles.cc.

64 {
65 std::string result;
66 result.reserve(struct_name.length() + member.length() + (is_array ? 4 : 1));
67 result += struct_name;
68 if (!member.empty()) {
69 result += '.';
70 result += member;
71 }
72 if (is_array) {
73 result += "[0]";
74 }
75 return NormalizeUniformKey(result);
76 }

References NormalizeUniformKey().

## ◆ CubicPathBoundingPopulateValues()

static void impeller::CubicPathBoundingPopulateValues | ( | std::vector< Scalar > & | values,
|  | Scalar | p1,
|  | Scalar | p2,
|  | Scalar | p3,
|  | Scalar | p4
| ) |  |
| static

Definition at line 253 of file path_component.cc.

257 {
258 const Scalar a = 3.0 * (-p1 + 3.0 * p2 - 3.0 * p3 + p4);
259 const Scalar b = 6.0 * (p1 - 2.0 * p2 + p3);
260 const Scalar c = 3.0 * (p2 - p1);
261
262 /*
263 * Boundary conditions.
264 */
265 if (NearZero(a)) {
266 if (NearZero(b)) {
267 return;
268 }
269
270 Scalar t = -c / b;
271 if (t >= 0.0 && t <= 1.0) {
272 values.emplace_back(t);
273 }
274 return;
275 }
276
277 Scalar b2Minus4AC = (b * b) - (4.0 * a * c);
278
279 if (b2Minus4AC < 0.0) {
280 return;
281 }
282
283 Scalar rootB2Minus4AC = ::sqrt(b2Minus4AC);
284
285 /* From Numerical Recipes in C.
286 *
287 * q = -1/2 (b + sign(b) sqrt[b^2 - 4ac])
288 * x1 = q / a
289 * x2 = c / q
290 */
291 Scalar q = (b < 0) ? -(b - rootB2Minus4AC) / 2 : -(b + rootB2Minus4AC) / 2;
292
293 {
294 Scalar t = q / a;
295 if (t >= 0.0 && t <= 1.0) {
296 values.emplace_back(t);
297 }
298 }
299
300 {
301 Scalar t = c / q;
302 if (t >= 0.0 && t <= 1.0) {
303 values.emplace_back(t);
304 }
305 }
306 }

References NearZero().

Referenced by impeller::CubicPathComponent::Extrema().

## ◆ CubicSolve()

static Scalar impeller::CubicSolve | ( | Scalar | t,
|  | Scalar | p0,
|  | Scalar | p1,
|  | Scalar | p2,
|  | Scalar | p3
| ) |  |
| inline static

Definition at line 33 of file path_component.cc.

37 {
38 return (1 - t) * (1 - t) * (1 - t) * p0 + //
39 3 * (1 - t) * (1 - t) * t * p1 + //
40 3 * (1 - t) * t * t * p2 + //
41 t * t * t * p3;
42 }

Referenced by impeller::CubicPathComponent::Solve().

## ◆ CubicSolveDerivative()

static Scalar impeller::CubicSolveDerivative | ( | Scalar | t,
|  | Scalar | p0,
|  | Scalar | p1,
|  | Scalar | p2,
|  | Scalar | p3
| ) |  |
| inline static

Definition at line 44 of file path_component.cc.

48 {
49 return -3 * p0 * (1 - t) * (1 - t) + //
50 p1 * (3 * (1 - t) * (1 - t) - 6 * (1 - t) * t) +
51 p2 * (6 * (1 - t) * t - 3 * t * t) + //
52 3 * p3 * t * t;
53 }

Referenced by impeller::CubicPathComponent::SolveDerivative().

## ◆ CubicTo()

IMPELLER_API void impeller::CubicTo | ( | PathBuilder * | builder,
|  | Scalar | x1,
|  | Scalar | y1,
|  | Scalar | x2,
|  | Scalar | y2,
|  | Scalar | x3,
|  | Scalar | y3
| ) |  |

Definition at line 26 of file tessellator.cc.

32 {
33 builder->CubicCurveTo(Point(x1, y1), Point(x2, y2), Point(x3, y3));
34 }

References impeller::PathBuilder::CubicCurveTo().

## ◆ DebugToFramebufferError()

std::string impeller::DebugToFramebufferError | ( | int | status | ) |

Definition at line 9 of file formats_gles.cc.

9 {
10 switch (status) {
11 case GL_FRAMEBUFFER_UNDEFINED:
12 return "GL_FRAMEBUFFER_UNDEFINED";
13 case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
14 return "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT";
15 case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
16 return "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT";
17 case GL_FRAMEBUFFER_UNSUPPORTED:
18 return "GL_FRAMEBUFFER_UNSUPPORTED";
19 case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
20 return "GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE";
21 default:
22 return "Unknown error code: " + std::to_string(status);
23 }
24 }

Referenced by EncodeCommandsInReactor().

## ◆ DecorateCacheWithMetadata()

static std::shared_ptr<fml::Mapping> impeller::DecorateCacheWithMetadata | ( | std::shared_ptr< fml::Mapping > | data | ) |
| static

Definition at line 24 of file pipeline_cache_vk.cc.

25 {
26 return data;
27 }

Referenced by impeller::PipelineCacheVK::PersistCacheToDisk().

## ◆ DeepCompareMap()

template<class Key , class ComparableType , class = std::enable_if_t<std::is_base_of_v<ComparableBase, ComparableType>>>

bool impeller::DeepCompareMap | ( | const std::map< Key, std::shared_ptr< ComparableType >> & | lhs,
|  | const std::map< Key, std::shared_ptr< ComparableType >> & | rhs
| ) |  |

Definition at line 74 of file comparable.h.

75 {
76 if (lhs.size() != rhs.size()) {
77 return false;
78 }
79
80 for (auto i = lhs.begin(), j = rhs.begin(); i != lhs.end(); i++, j++) {
81 if (i->first != j->first) {
82 return false;
83 }
84
85 if (!DeepComparePointer(i->second, j->second)) {
86 return false;
87 }
88 }
89
90 return true;
91 }

References DeepComparePointer().

Referenced by impeller::PipelineDescriptor::IsEqual().

## ◆ DeepComparePointer()

template<class ComparableType , class = std::enable_if_t<std::is_base_of_v<ComparableBase, ComparableType>>>

bool impeller::DeepComparePointer | ( | const std::shared_ptr< ComparableType > & | lhs,
|  | const std::shared_ptr< ComparableType > & | rhs
| ) |  |

Definition at line 57 of file comparable.h.

58 {
59 if (lhs == rhs) {
60 return true;
61 }
62
63 if (lhs && rhs) {
64 return lhs->IsEqual(*rhs);
65 }
66
67 return false;
68 }

Referenced by DeepCompareMap(), impeller::ComputePipelineDescriptor::IsEqual(), impeller::Font::IsEqual(), and impeller::PipelineDescriptor::IsEqual().

## ◆ DefaultUniformAlignment()

constexpr size_t impeller::DefaultUniformAlignment | ( |  | ) |
| constexpr

Definition at line 15 of file platform.h.

15 {
16 #if FML_OS_IOS && !TARGET_OS_SIMULATOR
17 return 16u;
18 #else
19 return 256u;
20 #endif
21 }

Referenced by impeller::HostBuffer::EmplaceStorageBuffer(), impeller::HostBuffer::EmplaceUniform(), and impeller::RuntimeEffectContents::Render().

## ◆ DeleteFBO()

static void impeller::DeleteFBO | ( | const ProcTableGLES & | gl,
|  | GLuint | fbo,
|  | GLenum | type
| ) |  |
| static

Definition at line 16 of file blit_command_gles.cc.

16 {
17 if (fbo != GL_NONE) {
18 gl.BindFramebuffer(type, GL_NONE);
19 gl.DeleteFramebuffers(1u, &fbo);
20 }
21 };

Referenced by ConfigureFBO(), impeller::BlitCopyTextureToTextureCommandGLES::Encode(), and impeller::BlitCopyTextureToBufferCommandGLES::Encode().

## ◆ DepthAttachmentToString()

std::string impeller::DepthAttachmentToString | ( | const DepthAttachment & | depth | ) |

Definition at line 130 of file formats.cc.

130 {
131 std::stringstream stream;
132 stream << AttachmentToString(depth) << ",";
133 stream << "ClearDepth=" << SPrintF("%.2f", depth.clear_depth);
134 return stream.str();
135 }

References AttachmentToString(), impeller::DepthAttachment::clear_depth, and SPrintF().

Referenced by impeller::RenderTarget::ToString().

## ◆ DescribeFramebufferAttachment()

static std::string impeller::DescribeFramebufferAttachment | ( | const ProcTableGLES & | gl,
|  | GLenum | attachment
| ) |  |
| static

Definition at line 233 of file proc_table_gles.cc.

234 {
235 GLint param = GL_NONE;
236 gl.GetFramebufferAttachmentParameteriv(
237 GL_FRAMEBUFFER, // target
238 attachment, // attachment
239 GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, // parameter name
240 &param // parameter
241 );
242
243 if (param != GL_NONE) {
244 param = GL_NONE;
245 gl.GetFramebufferAttachmentParameteriv(
246 GL_FRAMEBUFFER, // target
247 attachment, // attachment
248 GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, // parameter name
249 &param // parameter
250 );
251 std::stringstream stream;
252 stream << AttachmentTypeString(param) << "(" << param << ")";
253 return stream.str();
254 }
255
256 return "No Attachment";
257 }

References AttachmentTypeString().

Referenced by impeller::ProcTableGLES::DescribeCurrentFramebuffer().

## ◆ DestroyPathBuilder()

IMPELLER_API void impeller::DestroyPathBuilder | ( | PathBuilder * | builder | ) |

Definition at line 14 of file tessellator.cc.

14 {
15 delete builder;
16 }

## ◆ DestroyTessellator()

void impeller::DestroyTessellator | ( | TESStesselator * | tessellator | ) |

Definition at line 221 of file tessellator.cc.

221 {
222 if (tessellator != nullptr) {
223 ::tessDeleteTess(tessellator);
224 }
225 }

Referenced by impeller::Tessellator::Tessellator().

## ◆ DestroyVertices()

IMPELLER_API void impeller::DestroyVertices | ( | Vertices * | vertices | ) |

Definition at line 74 of file tessellator.cc.

74 {
75 delete vertices->points;
76 delete vertices;
77 }

References impeller::Vertices::points.

## ◆ DetermineIfES()

static bool impeller::DetermineIfES | ( | const std::string & | version | ) |
| static

Definition at line 39 of file description_gles.cc.

39 {
40 return HasPrefix(version, "OpenGL ES");
41 }

References HasPrefix().

Referenced by impeller::DescriptionGLES::DescriptionGLES().

## ◆ DetermineVersion()

static std::optional<Version> impeller::DetermineVersion | ( | std::string | version | ) |
| static

Definition at line 43 of file description_gles.cc.

43 {
44 // Format for OpenGL "OpenGL<space>ES<space><version
45 // number><space><vendor-specific information>".
46 //
47 // Format for OpenGL SL "OpenGL<space>ES<space>GLSL<space>ES<space><version
48 // number><space><vendor-specific information>"
49 //
50 // The prefixes appear to be absent on Desktop GL.
51
52 version = StripPrefix(version, "OpenGL ES ");
53 version = StripPrefix(version, "GLSL ES ");
54
55 if (version.empty()) {
56 return std::nullopt;
57 }
58
59 std::stringstream stream;
60 for (size_t i = 0; i < version.size(); i++) {
61 const auto character = version[i];
62 if (std::isdigit(character) || character == '.') {
63 stream << character;
64 } else {
65 break;
66 }
67 }
68 std::istringstream istream;
69 istream.str(stream.str());
70 std::vector<size_t> version_components;
71 for (std::string version_component;
72 std::getline(istream, version_component, '.');) {
73 version_components.push_back(std::stoul(version_component));
74 }
75 return Version::FromVector(version_components);
76 }

References impeller::Version::FromVector(), and StripPrefix().

Referenced by impeller::DescriptionGLES::DescriptionGLES().

## ◆ DeviceHasUnifiedMemoryArchitecture()

static bool impeller::DeviceHasUnifiedMemoryArchitecture | ( | id< MTLDevice > | device | ) |
| static

Definition at line 38 of file allocator_mtl.mm.

38 {
39 if (@available(ios 13.0, tvos 13.0, macOS 10.15, *)) {
40 return [device hasUnifiedMemory];
41 } else {
42 #if FML_OS_IOS
43 // iOS devices where the availability check can fail always have had UMA.
44 return true;
45 #else
46 // Mac devices where the availability check can fail have never had UMA.
47 return false;
48 #endif
49 }
50 FML_UNREACHABLE();
51 }

## ◆ DeviceMaxTextureSizeSupported()

static ISize impeller::DeviceMaxTextureSizeSupported | ( | id< MTLDevice > | device | ) |
| static

Definition at line 53 of file allocator_mtl.mm.

53 {
54 // Since Apple didn't expose API for us to get the max texture size, we have
55 // to use hardcoded data from
56 // https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf
57 // According to the feature set table, there are two supported max sizes :
58 // 16384 and 8192 for devices flutter support. The former is used on macs and
59 // latest ios devices. The latter is used on old ios devices.
60 if (@available(macOS 10.15, iOS 13, tvOS 13, *)) {
61 if ([device supportsFamily:MTLGPUFamilyApple3] ||
62 [device supportsFamily:MTLGPUFamilyMacCatalyst1] ||
63 [device supportsFamily:MTLGPUFamilyMac1]) {
64 return {16384, 16384};
65 }
66 return {8192, 8192};
67 } else {
68 #if FML_OS_IOS
69 if ([device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily4_v1] ||
70 [device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily3_v1]) {
71 return {16384, 16384};
72 }
73 #endif
74 #if FML_OS_MACOSX
75 return {16384, 16384};
76 #endif
77 return {8192, 8192};
78 }
79 }

## ◆ DeviceSupportsComputeSubgroups()

static bool impeller::DeviceSupportsComputeSubgroups | ( | id< MTLDevice > | device | ) |
| static

Definition at line 43 of file context_mtl.mm.

43 {
44 bool supports_subgroups = false;
45 // Refer to the "SIMD-scoped reduction operations" feature in the table
46 // below: https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf
47 if (@available(ios 13.0, tvos 13.0, macos 10.15, *)) {
48 supports_subgroups = [device supportsFamily:MTLGPUFamilyApple7] ||
49 [device supportsFamily:MTLGPUFamilyMac2];
50 }
51 return supports_subgroups;
52 }

Referenced by InferMetalCapabilities().

## ◆ DeviceSupportsDeviceTransientTargets()

static bool impeller::DeviceSupportsDeviceTransientTargets | ( | id< MTLDevice > | device | ) |
| static

Definition at line 17 of file allocator_mtl.mm.

17 {
18 // Refer to the "Memoryless render targets" feature in the table below:
19 // https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf
20 if (@available(ios 13.0, tvos 13.0, macos 10.15, *)) {
21 return [device supportsFamily:MTLGPUFamilyApple2];
22 } else {
23 #if FML_OS_IOS
24 // This is perhaps redundant. But, just in case we somehow get into a case
25 // where Impeller runs on iOS versions less than 8.0 and/or without A8
26 // GPUs, we explicitly check feature set support.
27 return [device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v1];
28 #else
29 // MacOS devices with Apple GPUs are only available with macos 10.15 and
30 // above. So, if we are here, it is safe to assume that memory-less targets
31 // are not supported.
32 return false;
33 #endif
34 }
35 FML_UNREACHABLE();
36 }

## ◆ DeviceSupportsFramebufferFetch()

static bool impeller::DeviceSupportsFramebufferFetch | ( | id< MTLDevice > | device | ) |
| static

Definition at line 23 of file context_mtl.mm.

23 {
24 // The iOS simulator lies about supporting framebuffer fetch.
25 #if FML_OS_IOS_SIMULATOR
26 return false;
27 #else // FML_OS_IOS_SIMULATOR
28
29 if (@available(macOS 10.15, iOS 13, tvOS 13, *)) {
30 return [device supportsFamily:MTLGPUFamilyApple2];
31 }
32 // According to
33 // https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf , Apple2
34 // corresponds to iOS GPU family 2, which supports A8 devices.
35 #if FML_OS_IOS
36 return [device supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v1];
37 #else
38 return false;
39 #endif // FML_OS_IOS
40 #endif // FML_OS_IOS_SIMULATOR
41 }

Referenced by InferMetalCapabilities().

## ◆ DoColorBlend()

static constexpr Color impeller::DoColorBlend | ( | Color | d,
|  | Color | s,
|  | const std::function< Vector3(Vector3, Vector3)> & | blend_rgb_func
| ) |  |
| inline static constexpr

Definition at line 196 of file color.cc.

199 {
200 d = d.Premultiply();
201 s = s.Premultiply();
202 const Vector3 rgb = blend_rgb_func(ToRGB(d), ToRGB(s));
203 const Color blended = Color::Lerp(s, FromRGB(rgb, d.alpha), d.alpha);
204 return Color::Lerp(d, blended, s.alpha).Unpremultiply();
205 }

References impeller::Color::alpha, FromRGB(), impeller::Color::Lerp(), impeller::Color::Premultiply(), ToRGB(), and impeller::Color::Unpremultiply().

Referenced by impeller::Color::Blend().

## ◆ DoColorBlendComponents()

static constexpr Color impeller::DoColorBlendComponents | ( | Color | d,
|  | Color | s,
|  | const std::function< Scalar(Scalar, Scalar)> & | blend_func
| ) |  |
| inline static constexpr

Definition at line 207 of file color.cc.

210 {
211 d = d.Premultiply();
212 s = s.Premultiply();
213 const Color blended = Color::Lerp(s,
214 Color(blend_func(d.red, s.red), //
215 blend_func(d.green, s.green), //
216 blend_func(d.blue, s.blue), //
217 d.alpha),
218 d.alpha);
219 return Color::Lerp(d, blended, s.alpha).Unpremultiply();
220 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, impeller::Color::Lerp(), impeller::Color::Premultiply(), impeller::Color::red, and impeller::Color::Unpremultiply().

Referenced by impeller::Color::Blend().

## ◆ DrawGlyph() [1/2]

static void impeller::DrawGlyph | ( | BitmapSTB * | bitmap,
|  | const ScaledFont & | scaled_font,
|  | const Glyph & | glyph,
|  | const Rect & | location,
|  | bool | has_color
| ) |  |
| static

Definition at line 198 of file typographer_context_stb.cc.

202 {
203 const auto& metrics = scaled_font.font.GetMetrics();
204
205 const impeller::Font& font = scaled_font.font;
206 auto typeface = font.GetTypeface();
207 // We downcast to the correct typeface type to access `stb` specific methods
208 std::shared_ptr<TypefaceSTB> typeface_stb =
209 std::reinterpret_pointer_cast<TypefaceSTB>(typeface);
210 // Conversion factor to scale font size in Points to pixels.
211 // Note this assumes typical DPI.
212 float text_size_pixels = metrics.point_size * TypefaceSTB::kPointsToPixels;
213 float scale_y =
214 stbtt_ScaleForPixelHeight(typeface_stb->GetFontInfo(), text_size_pixels);
215 float scale_x = scale_y;
216
217 auto output = bitmap->GetPixelAddress({static_cast<size_t>(location.GetX()),
218 static_cast<size_t>(location.GetY())});
219 // For Alpha and Signed Distance field bitmaps we can use STB to draw the
220 // Glyph in place
221 if (!has_color || DISABLE_COLOR_FONT_SUPPORT) {
222 stbtt_MakeGlyphBitmap(typeface_stb->GetFontInfo(), output,
223 location.GetWidth() - kPadding,
224 location.GetHeight() - kPadding,
225 bitmap->GetRowBytes(), scale_x, scale_y, glyph.index);
226 } else {
227 // But for color bitmaps we need to get the glyph pixels and then carry all
228 // channels into the atlas bitmap. This may not be performant but I'm unsure
229 // of any other approach currently.
230 int glyph_bitmap_width = 0;
231 int glyph_bitmap_height = 0;
232 int glyph_bitmap_xoff = 0;
233 int glyph_bitmap_yoff = 0;
234 auto glyph_pixels = stbtt_GetGlyphBitmap(
235 typeface_stb->GetFontInfo(), scale_x, scale_y, glyph.index,
236 &glyph_bitmap_width, &glyph_bitmap_height, &glyph_bitmap_xoff,
237 &glyph_bitmap_yoff);
238
239 uint8_t* write_pos = output;
240 for (auto y = 0; y < glyph_bitmap_height; ++y) {
241 for (auto x = 0; x < glyph_bitmap_width; ++x) {
242 // Color bitmaps write as White (i.e. what is 0 in an alpha bitmap is
243 // 255 in a color bitmap) But not alpha. Alpha still carries
244 // transparency info in the normal way.
245 // There's some issue with color fonts, in that if the pixel color is
246 // nonzero, the alpha is ignored during rendering. That is, partially
247 // (or fully) transparent pixels with nonzero color are rendered as
248 // fully opaque.
249 uint8_t a = glyph_pixels[x + y * glyph_bitmap_width];
250 uint8_t c = 255 - a;
251
252 // Red channel
253 *write_pos = c;
254 write_pos++;
255 // Green channel
256 *write_pos = c;
257 write_pos++;
258 // Blue channel
259 *write_pos = c;
260 write_pos++;
261 // Alpha channel
262 *write_pos = a;
263 write_pos++;
264 }
265 // next row
266 write_pos = output + (y * bitmap->GetRowBytes());
267 }
268 stbtt_FreeBitmap(glyph_pixels, nullptr);
269 }
270 }

References DISABLE_COLOR_FONT_SUPPORT, impeller::ScaledFont::font, impeller::TRect< T >::GetHeight(), impeller::Font::GetMetrics(), impeller::BitmapSTB::GetPixelAddress(), impeller::BitmapSTB::GetRowBytes(), impeller::Font::GetTypeface(), impeller::TRect< T >::GetWidth(), impeller::TRect< T >::GetX(), impeller::TRect< T >::GetY(), impeller::Glyph::index, kPadding, and impeller::TypefaceSTB::kPointsToPixels.

## ◆ DrawGlyph() [2/2]

static void impeller::DrawGlyph | ( | SkCanvas * | canvas,
|  | const ScaledFont & | scaled_font,
|  | const Glyph & | glyph,
|  | const Rect & | location,
|  | bool | has_color
| ) |  |
| static

Definition at line 155 of file typographer_context_skia.cc.

159 {
160 const auto& metrics = scaled_font.font.GetMetrics();
161 const auto position = SkPoint::Make(location.GetX() / scaled_font.scale,
162 location.GetY() / scaled_font.scale);
163 SkGlyphID glyph_id = glyph.index;
164
165 SkFont sk_font(
166 TypefaceSkia::Cast(*scaled_font.font.GetTypeface()).GetSkiaTypeface(),
167 metrics.point_size, metrics.scaleX, metrics.skewX);
168 sk_font.setEdging(SkFont::Edging::kAntiAlias);
169 sk_font.setHinting(SkFontHinting::kSlight);
170 sk_font.setEmbolden(metrics.embolden);
171
172 auto glyph_color = has_color ? SK_ColorWHITE : SK_ColorBLACK;
173
174 SkPaint glyph_paint;
175 glyph_paint.setColor(glyph_color);
176 canvas->resetMatrix();
177 canvas->scale(scaled_font.scale, scaled_font.scale);
178 canvas->drawGlyphs(1u, // count
179 &glyph_id, // glyphs
180 &position, // positions
181 SkPoint::Make(-glyph.bounds.GetLeft(),
182 -glyph.bounds.GetTop()), // origin
183 sk_font, // font
184 glyph_paint // paint
185 );
186 }

References impeller::Glyph::bounds, impeller::BackendCast< TypefaceSkia, Typeface >::Cast(), impeller::ScaledFont::font, impeller::TRect< T >::GetLeft(), impeller::Font::GetMetrics(), impeller::TypefaceSkia::GetSkiaTypeface(), impeller::TRect< T >::GetTop(), impeller::Font::GetTypeface(), impeller::TRect< T >::GetX(), impeller::TRect< T >::GetY(), impeller::Glyph::index, and impeller::ScaledFont::scale.

Referenced by CreateAtlasBitmap(), and UpdateAtlasBitmap().

## ◆ EmptyFeedback()

static vk::PipelineCreationFeedbackEXT impeller::EmptyFeedback | ( |  | ) |
| static

Definition at line 173 of file pipeline_library_vk.cc.

173 {
174 vk::PipelineCreationFeedbackEXT feedback;
175 // If the VK_PIPELINE_CREATION_FEEDBACK_VALID_BIT is not set in flags, an
176 // implementation must not set any other bits in flags, and the values of all
177 // other VkPipelineCreationFeedback data members are undefined.
178 feedback.flags = vk::PipelineCreationFeedbackFlagBits::eValid;
179 return feedback;
180 }

## ◆ EncodeCommand()

static bool impeller::EncodeCommand | ( | const Context & | context,
|  | const Command & | command,
|  | CommandEncoderVK & | encoder,
|  | PassBindingsCache & | command_buffer_cache,
|  | const ISize & | target_size,
|  | const vk::DescriptorSet | vk_desc_set
| ) |  |
| static

Definition at line 367 of file render_pass_vk.cc.

372 {
373 #ifdef IMPELLER_DEBUG
374 fml::ScopedCleanupClosure pop_marker(
375 [&encoder]() { encoder.PopDebugGroup(); });
376 if (!command.label.empty()) {
377 encoder.PushDebugGroup(command.label.c_str());
378 } else {
379 pop_marker.Release();
380 }
381 #endif // IMPELLER_DEBUG
382
383 const auto& cmd_buffer = encoder.GetCommandBuffer();
384 const auto& pipeline_vk = PipelineVK::Cast(*command.pipeline);
385
386 encoder.GetCommandBuffer().bindDescriptorSets(
387 vk::PipelineBindPoint::eGraphics, // bind point
388 pipeline_vk.GetPipelineLayout(), // layout
389 0, // first set
390 {vk::DescriptorSet{vk_desc_set}}, // sets
391 nullptr // offsets
392 );
393
394 command_buffer_cache.BindPipeline(
395 cmd_buffer, vk::PipelineBindPoint::eGraphics, pipeline_vk.GetPipeline());
396
397 // Set the viewport and scissors.
398 SetViewportAndScissor(command, cmd_buffer, command_buffer_cache, target_size);
399
400 // Set the stencil reference.
401 command_buffer_cache.SetStencilReference(
402 cmd_buffer, vk::StencilFaceFlagBits::eVkStencilFrontAndBack,
403 command.stencil_reference);
404
405 // Configure vertex and index and buffers for binding.
406 auto& vertex_buffer_view = command.vertex_buffer.vertex_buffer;
407
408 if (!vertex_buffer_view) {
409 return false;
410 }
411
412 auto& allocator = *context.GetResourceAllocator();
413 auto vertex_buffer = vertex_buffer_view.buffer->GetDeviceBuffer(allocator);
414
415 if (!vertex_buffer) {
416 VALIDATION_LOG << "Failed to acquire device buffer"
417 << " for vertex buffer view";
418 return false;
419 }
420
421 if (!encoder.Track(vertex_buffer)) {
422 return false;
423 }
424
425 // Bind the vertex buffer.
426 auto vertex_buffer_handle = DeviceBufferVK::Cast(*vertex_buffer).GetBuffer();
427 vk::Buffer vertex_buffers[] = {vertex_buffer_handle};
428 vk::DeviceSize vertex_buffer_offsets[] = {vertex_buffer_view.range.offset};
429 cmd_buffer.bindVertexBuffers(0u, 1u, vertex_buffers, vertex_buffer_offsets);
430
431 if (command.vertex_buffer.index_type != IndexType::kNone) {
432 // Bind the index buffer.
433 auto index_buffer_view = command.vertex_buffer.index_buffer;
434 if (!index_buffer_view) {
435 return false;
436 }
437
438 auto index_buffer = index_buffer_view.buffer->GetDeviceBuffer(allocator);
439 if (!index_buffer) {
440 VALIDATION_LOG << "Failed to acquire device buffer"
441 << " for index buffer view";
442 return false;
443 }
444
445 if (!encoder.Track(index_buffer)) {
446 return false;
447 }
448
449 auto index_buffer_handle = DeviceBufferVK::Cast(*index_buffer).GetBuffer();
450 cmd_buffer.bindIndexBuffer(index_buffer_handle,
451 index_buffer_view.range.offset,
452 ToVKIndexType(command.vertex_buffer.index_type));
453
454 // Engage!
455 cmd_buffer.drawIndexed(command.vertex_buffer.vertex_count, // index count
456 command.instance_count, // instance count
457 0u, // first index
458 command.base_vertex, // vertex offset
459 0u // first instance
460 );
461 } else {
462 cmd_buffer.draw(command.vertex_buffer.vertex_count, // vertex count
463 command.instance_count, // instance count
464 command.base_vertex, // vertex offset
465 0u // first instance
466 );
467 }
468 return true;
469 }

References impeller::CommandEncoderVK::GetCommandBuffer(), impeller::Command::pipeline, impeller::CommandEncoderVK::PopDebugGroup(), and impeller::CommandEncoderVK::PushDebugGroup().

## ◆ EncodeCommandsInReactor() [1/2]

bool impeller::EncodeCommandsInReactor | ( | const RenderPassData & | pass_data,
|  | const std::shared_ptr< Allocator > & | transients_allocator,
|  | const ReactorGLES & | reactor,
|  | const std::vector< Command > & | commands,
|  | const std::shared_ptr< GPUTracerGLES > & | tracer
| ) |  |

Configure blending.

Setup stencil.

Configure depth.

Setup the viewport.

Setup the scissor rect.

Setup culling.

Setup winding order.

Bind vertex and index buffers.

Bind the pipeline program.

Bind vertex attribs.

Bind uniform data.

Determine the primitive type.

Finally! Invoke the draw call.

Unbind vertex attribs.

Unbind the program pipeline.

Definition at line 146 of file render_pass_gles.cc.

151 {
152 TRACE_EVENT0("impeller", "RenderPassGLES::EncodeCommandsInReactor");
153
154 if (commands.empty()) {
155 return true;
156 }
157
158 const auto& gl = reactor.GetProcTable();
159 #ifdef IMPELLER_DEBUG
160 tracer->MarkFrameStart(gl);
161 #endif // IMPELLER_DEBUG
162
163 fml::ScopedCleanupClosure pop_pass_debug_marker(
164 [&gl]() { gl.PopDebugGroup(); });
165 if (!pass_data.label.empty()) {
166 gl.PushDebugGroup(pass_data.label);
167 } else {
168 pop_pass_debug_marker.Release();
169 }
170
171 GLuint fbo = GL_NONE;
172 fml::ScopedCleanupClosure delete_fbo([&gl, &fbo]() {
173 if (fbo != GL_NONE) {
174 gl.BindFramebuffer(GL_FRAMEBUFFER, GL_NONE);
175 gl.DeleteFramebuffers(1u, &fbo);
176 }
177 });
178
179 const auto is_default_fbo =
180 TextureGLES::Cast(*pass_data.color_attachment).IsWrapped();
181
182 if (!is_default_fbo) {
183 // Create and bind an offscreen FBO.
184 gl.GenFramebuffers(1u, &fbo);
185 gl.BindFramebuffer(GL_FRAMEBUFFER, fbo);
186
187 if (auto color = TextureGLES::Cast(pass_data.color_attachment.get())) {
188 if (!color->SetAsFramebufferAttachment(
189 GL_FRAMEBUFFER, TextureGLES::AttachmentPoint::kColor0)) {
190 return false;
191 }
192 }
193
194 if (auto depth = TextureGLES::Cast(pass_data.depth_attachment.get())) {
195 if (!depth->SetAsFramebufferAttachment(
196 GL_FRAMEBUFFER, TextureGLES::AttachmentPoint::kDepth)) {
197 return false;
198 }
199 }
200 if (auto stencil = TextureGLES::Cast(pass_data.stencil_attachment.get())) {
201 if (!stencil->SetAsFramebufferAttachment(
202 GL_FRAMEBUFFER, TextureGLES::AttachmentPoint::kStencil)) {
203 return false;
204 }
205 }
206
207 auto status = gl.CheckFramebufferStatus(GL_FRAMEBUFFER);
208 if (status != GL_FRAMEBUFFER_COMPLETE) {
209 VALIDATION_LOG << "Could not create a complete frambuffer: "
210 << DebugToFramebufferError(status);
211 return false;
212 }
213 }
214
215 gl.ClearColor(pass_data.clear_color.red, // red
216 pass_data.clear_color.green, // green
217 pass_data.clear_color.blue, // blue
218 pass_data.clear_color.alpha // alpha
219 );
220 if (pass_data.depth_attachment) {
221 // TODO(bdero): Desktop GL for Apple requires glClearDepth. glClearDepthf
222 // throws GL_INVALID_OPERATION.
223 // https://github.com/flutter/flutter/issues/136322
224 #if !FML_OS_MACOSX
225 gl.ClearDepthf(pass_data.clear_depth);
226 #endif
227 }
228 if (pass_data.stencil_attachment) {
229 gl.ClearStencil(pass_data.clear_stencil);
230 }
231
232 GLenum clear_bits = 0u;
233 if (pass_data.clear_color_attachment) {
234 clear_bits |= GL_COLOR_BUFFER_BIT;
235 }
236 if (pass_data.clear_depth_attachment) {
237 clear_bits |= GL_DEPTH_BUFFER_BIT;
238 }
239 if (pass_data.clear_stencil_attachment) {
240 clear_bits |= GL_STENCIL_BUFFER_BIT;
241 }
242
243 gl.Disable(GL_SCISSOR_TEST);
244 gl.Disable(GL_DEPTH_TEST);
245 gl.Disable(GL_STENCIL_TEST);
246 gl.Disable(GL_CULL_FACE);
247 gl.Disable(GL_BLEND);
248 gl.ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
249
250 gl.Clear(clear_bits);
251
252 for (const auto& command : commands) {
253 if (command.instance_count != 1u) {
254 VALIDATION_LOG << "GLES backend does not support instanced rendering.";
255 return false;
256 }
257
258 if (!command.pipeline) {
259 VALIDATION_LOG << "Command has no pipeline specified.";
260 return false;
261 }
262
263 #ifdef IMPELLER_DEBUG
264 fml::ScopedCleanupClosure pop_cmd_debug_marker(
265 [&gl]() { gl.PopDebugGroup(); });
266 if (!command.label.empty()) {
267 gl.PushDebugGroup(command.label);
268 } else {
269 pop_cmd_debug_marker.Release();
270 }
271 #endif // IMPELLER_DEBUG
272
273 const auto& pipeline = PipelineGLES::Cast(*command.pipeline);
274
275 const auto* color_attachment =
276 pipeline.GetDescriptor().GetLegacyCompatibleColorAttachment();
277 if (!color_attachment) {
278 VALIDATION_LOG
279 << "Color attachment is too complicated for a legacy renderer.";
280 return false;
281 }
282
283 //--------------------------------------------------------------------------
284 /// Configure blending.
285 ///
286 ConfigureBlending(gl, color_attachment);
287
288 //--------------------------------------------------------------------------
289 /// Setup stencil.
290 ///
291 ConfigureStencil(gl, pipeline.GetDescriptor(), command.stencil_reference);
292
293 //--------------------------------------------------------------------------
294 /// Configure depth.
295 ///
296 if (auto depth =
297 pipeline.GetDescriptor().GetDepthStencilAttachmentDescriptor();
298 depth.has_value()) {
299 gl.Enable(GL_DEPTH_TEST);
300 gl.DepthFunc(ToCompareFunction(depth->depth_compare));
301 gl.DepthMask(depth->depth_write_enabled ? GL_TRUE : GL_FALSE);
302 } else {
303 gl.Disable(GL_DEPTH_TEST);
304 }
305
306 // Both the viewport and scissor are specified in framebuffer coordinates.
307 // Impeller's framebuffer coordinate system is top left origin, but OpenGL's
308 // is bottom left origin, so we convert the coordinates here.
309 auto target_size = pass_data.color_attachment->GetSize();
310
311 //--------------------------------------------------------------------------
312 /// Setup the viewport.
313 ///
314 const auto& viewport = command.viewport.value_or(pass_data.viewport);
315 gl.Viewport(viewport.rect.GetX(), // x
316 target_size.height - viewport.rect.GetY() -
317 viewport.rect.GetHeight(), // y
318 viewport.rect.GetWidth(), // width
319 viewport.rect.GetHeight() // height
320 );
321 if (pass_data.depth_attachment) {
322 // TODO(bdero): Desktop GL for Apple requires glDepthRange. glDepthRangef
323 // throws GL_INVALID_OPERATION.
324 // https://github.com/flutter/flutter/issues/136322
325 #if !FML_OS_MACOSX
326 gl.DepthRangef(viewport.depth_range.z_near, viewport.depth_range.z_far);
327 #endif
328 }
329
330 //--------------------------------------------------------------------------
331 /// Setup the scissor rect.
332 ///
333 if (command.scissor.has_value()) {
334 const auto& scissor = command.scissor.value();
335 gl.Enable(GL_SCISSOR_TEST);
336 gl.Scissor(
337 scissor.GetX(), // x
338 target_size.height - scissor.GetY() - scissor.GetHeight(), // y
339 scissor.GetWidth(), // width
340 scissor.GetHeight() // height
341 );
342 } else {
343 gl.Disable(GL_SCISSOR_TEST);
344 }
345
346 //--------------------------------------------------------------------------
347 /// Setup culling.
348 ///
349 switch (pipeline.GetDescriptor().GetCullMode()) {
350 case CullMode::kNone:
351 gl.Disable(GL_CULL_FACE);
352 break;
353 case CullMode::kFrontFace:
354 gl.Enable(GL_CULL_FACE);
355 gl.CullFace(GL_FRONT);
356 break;
357 case CullMode::kBackFace:
358 gl.Enable(GL_CULL_FACE);
359 gl.CullFace(GL_BACK);
360 break;
361 }
362 //--------------------------------------------------------------------------
363 /// Setup winding order.
364 ///
365 switch (pipeline.GetDescriptor().GetWindingOrder()) {
366 case WindingOrder::kClockwise:
367 gl.FrontFace(GL_CW);
368 break;
369 case WindingOrder::kCounterClockwise:
370 gl.FrontFace(GL_CCW);
371 break;
372 }
373
374 if (command.vertex_buffer.index_type == IndexType::kUnknown) {
375 return false;
376 }
377
378 auto vertex_desc_gles = pipeline.GetBufferBindings();
379
380 //--------------------------------------------------------------------------
381 /// Bind vertex and index buffers.
382 ///
383 auto& vertex_buffer_view = command.vertex_buffer.vertex_buffer;
384
385 if (!vertex_buffer_view) {
386 return false;
387 }
388
389 auto vertex_buffer =
390 vertex_buffer_view.buffer->GetDeviceBuffer(*transients_allocator);
391
392 if (!vertex_buffer) {
393 return false;
394 }
395
396 const auto& vertex_buffer_gles = DeviceBufferGLES::Cast(*vertex_buffer);
397 if (!vertex_buffer_gles.BindAndUploadDataIfNecessary(
398 DeviceBufferGLES::BindingType::kArrayBuffer)) {
399 return false;
400 }
401
402 //--------------------------------------------------------------------------
403 /// Bind the pipeline program.
404 ///
405 if (!pipeline.BindProgram()) {
406 return false;
407 }
408
409 //--------------------------------------------------------------------------
410 /// Bind vertex attribs.
411 ///
412 if (!vertex_desc_gles->BindVertexAttributes(
413 gl, vertex_buffer_view.range.offset)) {
414 return false;
415 }
416
417 //--------------------------------------------------------------------------
418 /// Bind uniform data.
419 ///
420 if (!vertex_desc_gles->BindUniformData(gl, //
421 *transients_allocator, //
422 command.vertex_bindings, //
423 command.fragment_bindings //
424 )) {
425 return false;
426 }
427
428 //--------------------------------------------------------------------------
429 /// Determine the primitive type.
430 ///
431 // GLES doesn't support setting the fill mode, so override the primitive
432 // with GL_LINE_STRIP to somewhat emulate PolygonMode::kLine. This isn't
433 // correct; full triangle outlines won't be drawn and disconnected
434 // geometry may appear connected. However this can still be useful for
435 // wireframe debug views.
436 auto mode = pipeline.GetDescriptor().GetPolygonMode() == PolygonMode::kLine
437 ? GL_LINE_STRIP
438 : ToMode(pipeline.GetDescriptor().GetPrimitiveType());
439
440 //--------------------------------------------------------------------------
441 /// Finally! Invoke the draw call.
442 ///
443 if (command.vertex_buffer.index_type == IndexType::kNone) {
444 gl.DrawArrays(mode, command.base_vertex,
445 command.vertex_buffer.vertex_count);
446 } else {
447 // Bind the index buffer if necessary.
448 auto index_buffer_view = command.vertex_buffer.index_buffer;
449 auto index_buffer =
450 index_buffer_view.buffer->GetDeviceBuffer(*transients_allocator);
451 const auto& index_buffer_gles = DeviceBufferGLES::Cast(*index_buffer);
452 if (!index_buffer_gles.BindAndUploadDataIfNecessary(
453 DeviceBufferGLES::BindingType::kElementArrayBuffer)) {
454 return false;
455 }
456 gl.DrawElements(mode, // mode
457 command.vertex_buffer.vertex_count, // count
458 ToIndexType(command.vertex_buffer.index_type), // type
459 reinterpret_cast<const GLvoid*>(static_cast<GLsizei>(
460 index_buffer_view.range.offset)) // indices
461 );
462 }
463
464 //--------------------------------------------------------------------------
465 /// Unbind vertex attribs.
466 ///
467 if (!vertex_desc_gles->UnbindVertexAttributes(gl)) {
468 return false;
469 }
470
471 //--------------------------------------------------------------------------
472 /// Unbind the program pipeline.
473 ///
474 if (!pipeline.UnbindProgram()) {
475 return false;
476 }
477 }
478
479 if (gl.DiscardFramebufferEXT.IsAvailable()) {
480 std::vector<GLenum> attachments;
481
482 if (pass_data.discard_color_attachment) {
483 attachments.push_back(is_default_fbo ? GL_COLOR_EXT
484 : GL_COLOR_ATTACHMENT0);
485 }
486 if (pass_data.discard_depth_attachment) {
487 attachments.push_back(is_default_fbo ? GL_DEPTH_EXT
488 : GL_DEPTH_ATTACHMENT);
489 }
490
491 // TODO(jonahwilliams): discarding the stencil on the default fbo when running
492 // on Windows causes Angle to discard the entire render target. Until we know
493 // the reason, default to storing.
494 #ifdef FML_OS_WIN
495 if (pass_data.discard_stencil_attachment && !is_default_fbo) {
496 #else
497 if (pass_data.discard_stencil_attachment) {
498 #endif
499 attachments.push_back(is_default_fbo ? GL_STENCIL_EXT
500 : GL_STENCIL_ATTACHMENT);
501 }
502 gl.DiscardFramebufferEXT(GL_FRAMEBUFFER, // target
503 attachments.size(), // attachments to discard
504 attachments.data() // size
505 );
506 }
507
508 #ifdef IMPELLER_DEBUG
509 if (is_default_fbo) {
510 tracer->MarkFrameEnd(gl);
511 }
512 #endif // IMPELLER_DEBUG
513
514 return true;
515 }

References impeller::Color::alpha, impeller::Color::blue, CanClearAttachment(), CanDiscardAttachmentWhenDone(), impeller::BackendCast< TextureGLES, Texture >::Cast(), impeller::BackendCast< DeviceBufferGLES, DeviceBuffer >::Cast(), impeller::BackendCast< PipelineGLES, Pipeline< PipelineDescriptor > >::Cast(), impeller::BackendCast< ContextGLES, Context >::Cast(), impeller::RenderPassData::clear_color, impeller::RenderPassData::clear_color_attachment, impeller::RenderPassData::clear_depth, impeller::RenderPassData::clear_depth_attachment, impeller::RenderPassData::clear_stencil, impeller::RenderPassData::clear_stencil_attachment, impeller::RenderPassData::color_attachment, impeller::RenderPass::commands_, ConfigureBlending(), ConfigureStencil(), DebugToFramebufferError(), impeller::RenderPassData::depth_attachment, impeller::RenderPassData::discard_color_attachment, impeller::RenderPassData::discard_depth_attachment, impeller::RenderPassData::discard_stencil_attachment, impeller::Context::GetCapabilities(), impeller::ContextGLES::GetGPUTracer(), impeller::ReactorGLES::GetProcTable(), impeller::RenderPass::GetRenderTarget(), impeller::RenderPass::GetRenderTargetSize(), impeller::Context::GetResourceAllocator(), impeller::Color::green, impeller::DeviceBufferGLES::kArrayBuffer, kBackFace, kClockwise, impeller::TextureGLES::kColor0, kCounterClockwise, impeller::TextureGLES::kDepth, impeller::DeviceBufferGLES::kElementArrayBuffer, kFrontFace, kLine, kNone, impeller::TextureGLES::kStencil, kUnknown, impeller::RenderPassData::label, impeller::TRect< Scalar >::MakeSize(), impeller::ProcTableGLES::PushDebugGroup(), impeller::Viewport::rect, impeller::Color::red, impeller::RenderPassData::stencil_attachment, ToCompareFunction(), ToIndexType(), ToMode(), VALIDATION_LOG, and impeller::RenderPassData::viewport.

## ◆ EncodeCommandsInReactor() [2/2]

bool impeller::EncodeCommandsInReactor | ( | const std::shared_ptr< Allocator > & | transients_allocator,
|  | const ReactorGLES & | reactor,
|  | const std::vector< std::unique_ptr< BlitEncodeGLES >> & | commands,
|  | const std::string & | label
| ) |  |

Definition at line 34 of file blit_pass_gles.cc.

38 {
39 TRACE_EVENT0("impeller", "BlitPassGLES::EncodeCommandsInReactor");
40
41 if (commands.empty()) {
42 return true;
43 }
44
45 const auto& gl = reactor.GetProcTable();
46
47 fml::ScopedCleanupClosure pop_pass_debug_marker(
48 [&gl]() { gl.PopDebugGroup(); });
49 if (!label.empty()) {
50 gl.PushDebugGroup(label);
51 } else {
52 pop_pass_debug_marker.Release();
53 }
54
55 for (const auto& command : commands) {
56 fml::ScopedCleanupClosure pop_cmd_debug_marker(
57 [&gl]() { gl.PopDebugGroup(); });
58 auto label = command->GetLabel();
59 if (!label.empty()) {
60 gl.PushDebugGroup(label);
61 } else {
62 pop_cmd_debug_marker.Release();
63 }
64
65 if (!command->Encode(reactor)) {
66 return false;
67 }
68 }
69
70 return true;
71 }

References impeller::ReactorGLES::GetProcTable(), and impeller::ProcTableGLES::PushDebugGroup().

## ◆ FormatWindowTitle() [1/2]

static std::string impeller::FormatWindowTitle | ( | const std::string & | test_name | ) |
| static

Definition at line 44 of file compute_playground_test.cc.

44 {
45 std::stringstream stream;
46 stream << "Impeller Playground for '" << test_name << "' (Press ESC to quit)";
47 return stream.str();
48 }

Referenced by impeller::ComputePlaygroundTest::GetWindowTitle(), and impeller::PlaygroundTest::GetWindowTitle().

## ◆ FormatWindowTitle() [2/2]

static std::string impeller::FormatWindowTitle | ( | const std::string & | test_name | ) |
| static

Definition at line 59 of file playground_test.cc.

59 {
60 std::stringstream stream;
61 stream << "Impeller Playground for '" << test_name << "' (Press ESC to quit)";
62 return stream.str();
63 }

## ◆ FramebufferStatusToString()

static const char* impeller::FramebufferStatusToString | ( | GLenum | status | ) |
| static

Definition at line 199 of file proc_table_gles.cc.

199 {
200 switch (status) {
201 case GL_FRAMEBUFFER_COMPLETE:
202 return "GL_FRAMEBUFFER_COMPLETE";
203 case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
204 return "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT";
205 #if GL_ES_VERSION_2_0
206 case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS:
207 return "GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS";
208 #endif
209 case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
210 return "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT";
211 case GL_FRAMEBUFFER_UNSUPPORTED:
212 return "GL_FRAMEBUFFER_UNSUPPORTED";
213 case GL_INVALID_ENUM:
214 return "GL_INVALID_ENUM";
215 }
216
217 return "Unknown FBO Error Status";
218 }

Referenced by impeller::ProcTableGLES::DescribeCurrentFramebuffer().

## ◆ fromFanIndices()

static std::vector<uint16_t> impeller::fromFanIndices | ( | const std::vector< Point > & | vertices,
|  | const std::vector< uint16_t > & | indices
| ) |  |
| static

Definition at line 20 of file vertices_geometry.cc.

22 {
23 std::vector<uint16_t> unrolled_indices;
24
25 // Un-fan index buffer if provided.
26 if (indices.size() > 0u) {
27 if (indices.size() < 3u) {
28 return {};
29 }
30
31 auto center_point = indices[0];
32 for (auto i = 1u; i < indices.size() - 1; i++) {
33 unrolled_indices.push_back(center_point);
34 unrolled_indices.push_back(indices[i]);
35 unrolled_indices.push_back(indices[i + 1]);
36 }
37 } else {
38 if (vertices.size() < 3u) {
39 return {};
40 }
41
42 // If indices were not provided, create an index buffer that unfans
43 // triangles instead of re-writing points, colors, et cetera.
44 for (auto i = 1u; i < vertices.size() - 1; i++) {
45 unrolled_indices.push_back(0);
46 unrolled_indices.push_back(i);
47 unrolled_indices.push_back(i + 1);
48 }
49 }
50 return unrolled_indices;
51 }

## ◆ FromMTLLoadAction()

constexpr LoadAction impeller::FromMTLLoadAction | ( | MTLLoadAction | action | ) |
| constexpr

Definition at line 292 of file formats_mtl.h.

292 {
293 switch (action) {
294 case MTLLoadActionDontCare:
295 return LoadAction::kDontCare;
296 case MTLLoadActionLoad:
297 return LoadAction::kLoad;
298 case MTLLoadActionClear:
299 return LoadAction::kClear;
300 default:
301 break;
302 }
303
304 return LoadAction::kDontCare;
305 }

References kClear, kDontCare, and kLoad.

## ◆ FromMTLPixelFormat()

constexpr PixelFormat impeller::FromMTLPixelFormat | ( | MTLPixelFormat | format | ) |
| constexpr

Definition at line 23 of file formats_mtl.h.

23 {
24 switch (format) {
25 case MTLPixelFormatInvalid:
26 return PixelFormat::kUnknown;
27 case MTLPixelFormatBGRA8Unorm:
28 return PixelFormat::kB8G8R8A8UNormInt;
29 case MTLPixelFormatBGRA8Unorm_sRGB:
30 return PixelFormat::kB8G8R8A8UNormIntSRGB;
31 case MTLPixelFormatRGBA8Unorm:
32 return PixelFormat::kR8G8B8A8UNormInt;
33 case MTLPixelFormatRGBA8Unorm_sRGB:
34 return PixelFormat::kR8G8B8A8UNormIntSRGB;
35 case MTLPixelFormatRGBA32Float:
36 return PixelFormat::kR32G32B32A32Float;
37 case MTLPixelFormatRGBA16Float:
38 return PixelFormat::kR16G16B16A16Float;
39 case MTLPixelFormatStencil8:
40 return PixelFormat::kS8UInt;
41 #if !FML_OS_IOS
42 case MTLPixelFormatDepth24Unorm_Stencil8:
43 return PixelFormat::kD24UnormS8Uint;
44 #endif // FML_OS_IOS
45 case MTLPixelFormatDepth32Float_Stencil8:
46 return PixelFormat::kD32FloatS8UInt;
47 case MTLPixelFormatBGR10_XR_sRGB:
48 return PixelFormat::kB10G10R10XRSRGB;
49 case MTLPixelFormatBGR10_XR:
50 return PixelFormat::kB10G10R10XR;
51 case MTLPixelFormatBGRA10_XR:
52 return PixelFormat::kB10G10R10A10XR;
53 default:
54 return PixelFormat::kUnknown;
55 }
56 return PixelFormat::kUnknown;
57 }

References kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kS8UInt, and kUnknown.

Referenced by WrapTextureMTL(), and WrapTextureWithRenderTarget().

## ◆ FromMTLStoreAction()

constexpr StoreAction impeller::FromMTLStoreAction | ( | MTLStoreAction | action | ) |
| constexpr

Definition at line 321 of file formats_mtl.h.

321 {
322 switch (action) {
323 case MTLStoreActionDontCare:
324 return StoreAction::kDontCare;
325 case MTLStoreActionStore:
326 return StoreAction::kStore;
327 case MTLStoreActionMultisampleResolve:
328 return StoreAction::kMultisampleResolve;
329 case MTLStoreActionStoreAndMultisampleResolve:
330 return StoreAction::kStoreAndMultisampleResolve;
331 default:
332 break;
333 }
334 return StoreAction::kDontCare;
335 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

## ◆ FromRGB()

static constexpr Color impeller::FromRGB | ( | Vector3 | color,
|  | Scalar | alpha
| ) |  |
| inline static constexpr

Definition at line 192 of file color.cc.

192 {
193 return {color.x, color.y, color.z, alpha};
194 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by DoColorBlend().

## ◆ GenerateBlurInfo()

KernelPipeline::FragmentShader::KernelSamples impeller::GenerateBlurInfo | ( | BlurParameters | parameters | ) |

Definition at line 435 of file gaussian_blur_filter_contents.cc.

436 {
437 KernelPipeline::FragmentShader::KernelSamples result;
438 result.sample_count =
439 ((2 * parameters.blur_radius) / parameters.step_size) + 1;
440 FML_CHECK(result.sample_count < 24);
441
442 Scalar tally = 0.0f;
443 for (int i = 0; i < result.sample_count; ++i) {
444 int x = (i * parameters.step_size) - parameters.blur_radius;
445 result.samples[i] = KernelPipeline::FragmentShader::KernelSample{
446 .uv_offset = parameters.blur_uv_offset * x,
447 .coefficient = expf(-0.5f * (x * x) /
448 (parameters.blur_sigma * parameters.blur_sigma)) /
449 (sqrtf(2.0f * M_PI) * parameters.blur_sigma),
450 };
451 tally += result.samples[i].coefficient;
452 }
453
454 // Make sure everything adds up to 1.
455 for (auto& sample : result.samples) {
456 sample.coefficient /= tally;
457 }
458
459 return result;
460 }

References impeller::BlurParameters::blur_radius, impeller::BlurParameters::blur_sigma, impeller::BlurParameters::blur_uv_offset, and impeller::BlurParameters::step_size.

Referenced by impeller::testing::TEST().

## ◆ GetBytesPerPixel()

static size_t impeller::GetBytesPerPixel | ( | DecompressedImage::Format | format | ) |
| static

Definition at line 46 of file decompressed_image.cc.

46 {
47 switch (format) {
48 case DecompressedImage::Format::kInvalid:
49 return 0u;
50 case DecompressedImage::Format::kGrey:
51 return 1u;
52 case DecompressedImage::Format::kGreyAlpha:
53 return 1u;
54 case DecompressedImage::Format::kRGB:
55 return 3u;
56 case DecompressedImage::Format::kRGBA:
57 return 4;
58 }
59 return 0u;
60 }

References impeller::DecompressedImage::kGrey, impeller::DecompressedImage::kGreyAlpha, impeller::DecompressedImage::kInvalid, impeller::DecompressedImage::kRGB, and impeller::DecompressedImage::kRGBA.

Referenced by impeller::DecompressedImage::ConvertToRGBA().

## ◆ GetDefaultStencilConfig()

static RenderTarget::AttachmentConfig impeller::GetDefaultStencilConfig | ( | bool | readable | ) |
| static

Definition at line 241 of file entity_pass.cc.

241 {
242 return RenderTarget::AttachmentConfig{
243 .storage_mode = readable ? StorageMode::kDevicePrivate
244 : StorageMode::kDeviceTransient,
245 .load_action = LoadAction::kDontCare,
246 .store_action = StoreAction::kDontCare,
247 };
248 }

References kDevicePrivate, kDeviceTransient, kDontCare, and impeller::RenderTarget::AttachmentConfig::storage_mode.

Referenced by CreateRenderTarget().

## ◆ GetDeviceExtensionName()

static const char* impeller::GetDeviceExtensionName | ( | OptionalDeviceExtensionVK | ext | ) |
| static

Definition at line 156 of file capabilities_vk.cc.

156 {
157 switch (ext) {
158 case OptionalDeviceExtensionVK::kEXTPipelineCreationFeedback:
159 return VK_EXT_PIPELINE_CREATION_FEEDBACK_EXTENSION_NAME;
160 case OptionalDeviceExtensionVK::kARMRasterizationOrderAttachmentAccess:
161 return VK_ARM_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_EXTENSION_NAME;
162 case OptionalDeviceExtensionVK::kEXTRasterizationOrderAttachmentAccess:
163 return VK_EXT_RASTERIZATION_ORDER_ATTACHMENT_ACCESS_EXTENSION_NAME;
164 case OptionalDeviceExtensionVK::kLast:
165 return "Unknown";
166 }
167 return "Unknown";
168 }

References kARMRasterizationOrderAttachmentAccess, kEXTPipelineCreationFeedback, kEXTRasterizationOrderAttachmentAccess, and kLast.

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceExtensions(), and impeller::CapabilitiesVK::SetPhysicalDevice().

## ◆ GetDrawableDeferred()

std::shared_future< id< CAMetalDrawable > > impeller::GetDrawableDeferred | ( | CAMetalLayer * | layer | ) |

Create a deferred drawable from a CAMetalLayer.

Definition at line 23 of file lazy_drawable_holder.mm.

24 {
25 auto future =
26 std::async(std::launch::deferred, [layer]() -> id<CAMetalDrawable> {
27 id<CAMetalDrawable> current_drawable = nil;
28 {
29 TRACE_EVENT0("impeller", "WaitForNextDrawable");
30 current_drawable = [layer nextDrawable];
31 }
32 if (!current_drawable) {
33 VALIDATION_LOG << "Could not acquire current drawable.";
34 return nullptr;
35 }
36 return current_drawable;
37 });
38 return std::shared_future<id<CAMetalDrawable>>(std::move(future));
39 }

References VALIDATION_LOG.

Referenced by impeller::testing::TEST().

## ◆ GetFencesForWaitSet()

static std::vector<vk::Fence> impeller::GetFencesForWaitSet | ( | const WaitSet & | set | ) |
| static

Definition at line 82 of file fence_waiter_vk.cc.

82 {
83 std::vector<vk::Fence> fences;
84 for (const auto& entry : set) {
85 if (!entry->IsSignalled()) {
86 fences.emplace_back(entry->GetFence());
87 }
88 }
89 return fences;
90 }

## ◆ GetGLString()

static std::string impeller::GetGLString | ( | const ProcTableGLES & | gl,
|  | GLenum | name
| ) |  |
| static

Definition at line 21 of file description_gles.cc.

21 {
22 auto str = gl.GetString(name);
23 if (str == nullptr) {
24 return "";
25 }
26 return reinterpret_cast<const char*>(str);
27 }

Referenced by impeller::DescriptionGLES::DescriptionGLES().

## ◆ GetGLStringi()

static std::string impeller::GetGLStringi | ( | const ProcTableGLES & | gl,
|  | GLenum | name,
|  | int | index
| ) |  |
| static

Definition at line 29 of file description_gles.cc.

31 {
32 auto str = gl.GetStringi(name, index);
33 if (str == nullptr) {
34 return "";
35 }
36 return reinterpret_cast<const char*>(str);
37 }

Referenced by impeller::DescriptionGLES::DescriptionGLES().

## ◆ GetMTLComputePipelineDescriptor()

static MTLComputePipelineDescriptor* impeller::GetMTLComputePipelineDescriptor | ( | const ComputePipelineDescriptor & | desc | ) |
| static

Definition at line 84 of file pipeline_library_mtl.mm.

85 {
86 auto descriptor = [[MTLComputePipelineDescriptor alloc] init];
87 descriptor.label = @(desc.GetLabel().c_str());
88 descriptor.computeFunction =
89 ShaderFunctionMTL::Cast(*desc.GetStageEntrypoint()).GetMTLFunction();
90 return descriptor;
91 }

References impeller::BackendCast< ShaderFunctionMTL, ShaderFunction >::Cast(), impeller::ComputePipelineDescriptor::GetLabel(), impeller::ShaderFunctionMTL::GetMTLFunction(), and impeller::ComputePipelineDescriptor::GetStageEntrypoint().

## ◆ GetMTLRenderPipelineDescriptor()

static void impeller::GetMTLRenderPipelineDescriptor | ( | const PipelineDescriptor & | desc,
|  | const Callback & | callback
| ) |  |
| static

Definition at line 28 of file pipeline_library_mtl.mm.

29 {
30 auto descriptor = [[MTLRenderPipelineDescriptor alloc] init];
31 descriptor.label = @(desc.GetLabel().c_str());
32 descriptor.rasterSampleCount = static_cast<NSUInteger>(desc.GetSampleCount());
33 bool created_specialized_function = false;
34
35 if (const auto& vertex_descriptor = desc.GetVertexDescriptor()) {
36 VertexDescriptorMTL vertex_descriptor_mtl;
37 if (vertex_descriptor_mtl.SetStageInputsAndLayout(
38 vertex_descriptor->GetStageInputs(),
39 vertex_descriptor->GetStageLayouts())) {
40 descriptor.vertexDescriptor =
41 vertex_descriptor_mtl.GetMTLVertexDescriptor();
42 }
43 }
44
45 for (const auto& item : desc.GetColorAttachmentDescriptors()) {
46 descriptor.colorAttachments[item.first] =
47 ToMTLRenderPipelineColorAttachmentDescriptor(item.second);
48 }
49
50 descriptor.depthAttachmentPixelFormat =
51 ToMTLPixelFormat(desc.GetDepthPixelFormat());
52 descriptor.stencilAttachmentPixelFormat =
53 ToMTLPixelFormat(desc.GetStencilPixelFormat());
54
55 const auto& constants = desc.GetSpecializationConstants();
56 for (const auto& entry : desc.GetStageEntrypoints()) {
57 if (entry.first == ShaderStage::kVertex) {
58 descriptor.vertexFunction =
59 ShaderFunctionMTL::Cast(*entry.second).GetMTLFunction();
60 }
61 if (entry.first == ShaderStage::kFragment) {
62 if (constants.empty()) {
63 descriptor.fragmentFunction =
64 ShaderFunctionMTL::Cast(*entry.second).GetMTLFunction();
65 } else {
66 // This code only expects a single specialized function per pipeline.
67 FML_CHECK(!created_specialized_function);
68 created_specialized_function = true;
69 ShaderFunctionMTL::Cast(*entry.second)
70 .GetMTLFunctionSpecialized(
71 constants, [callback, descriptor](id<MTLFunction> function) {
72 descriptor.fragmentFunction = function;
73 callback(descriptor);
74 });
75 }
76 }
77 }
78
79 if (!created_specialized_function) {
80 callback(descriptor);
81 }
82 }

References impeller::BackendCast< ShaderFunctionMTL, ShaderFunction >::Cast(), impeller::PipelineDescriptor::GetColorAttachmentDescriptors(), impeller::PipelineDescriptor::GetDepthPixelFormat(), impeller::PipelineDescriptor::GetLabel(), impeller::ShaderFunctionMTL::GetMTLFunction(), impeller::ShaderFunctionMTL::GetMTLFunctionSpecialized(), impeller::VertexDescriptorMTL::GetMTLVertexDescriptor(), impeller::PipelineDescriptor::GetSampleCount(), impeller::PipelineDescriptor::GetSpecializationConstants(), impeller::PipelineDescriptor::GetStageEntrypoints(), impeller::PipelineDescriptor::GetStencilPixelFormat(), impeller::PipelineDescriptor::GetVertexDescriptor(), kFragment, kVertex, impeller::VertexDescriptorMTL::SetStageInputsAndLayout(), ToMTLPixelFormat(), and ToMTLRenderPipelineColorAttachmentDescriptor().

## ◆ GetQueueCreateInfos()

static std::vector<vk::DeviceQueueCreateInfo> impeller::GetQueueCreateInfos | ( | std::initializer_list< QueueIndexVK > | queues | ) |
| static

Definition at line 58 of file context_vk.cc.

59 {
60 std::map<size_t /* family */, size_t /* index */> family_index_map;
61 for (const auto& queue : queues) {
62 family_index_map[queue.family] = 0;
63 }
64 for (const auto& queue : queues) {
65 auto value = family_index_map[queue.family];
66 family_index_map[queue.family] = std::max(value, queue.index);
67 }
68
69 static float kQueuePriority = 1.0f;
70 std::vector<vk::DeviceQueueCreateInfo> infos;
71 for (const auto& item : family_index_map) {
72 vk::DeviceQueueCreateInfo info;
73 info.setQueueFamilyIndex(item.first);
74 info.setQueueCount(item.second + 1);
75 info.setQueuePriorities(kQueuePriority);
76 infos.push_back(info);
77 }
78 return infos;
79 }

## ◆ GetShaderInfoLog()

static std::string impeller::GetShaderInfoLog | ( | const ProcTableGLES & | gl,
|  | GLuint | shader
| ) |  |
| static

Definition at line 22 of file pipeline_library_gles.cc.

22 {
23 GLint log_length = 0;
24 gl.GetShaderiv(shader, GL_INFO_LOG_LENGTH, &log_length);
25 if (log_length == 0) {
26 return "";
27 }
28 auto log_buffer =
29 reinterpret_cast<char*>(std::calloc(log_length, sizeof(char)));
30 gl.GetShaderInfoLog(shader, log_length, &log_length, log_buffer);
31 auto log_string = std::string(log_buffer, log_length);
32 std::free(log_buffer);
33 return log_string;
34 }

Referenced by LogShaderCompilationFailure().

## ◆ GetShaderSource()

static std::string impeller::GetShaderSource | ( | const ProcTableGLES & | gl,
|  | GLuint | shader
| ) |  |
| static

Definition at line 36 of file pipeline_library_gles.cc.

36 {
37 // Arbitrarily chosen size that should be larger than most shaders.
38 // Since this only fires on compilation errors the performance shouldn't
39 // matter.
40 auto data = static_cast<char*>(malloc(10240));
41 GLsizei length;
42 gl.GetShaderSource(shader, 10240, &length, data);
43
44 auto result = std::string{data, static_cast<size_t>(length)};
45 free(data);
46 return result;
47 }

Referenced by LogShaderCompilationFailure().

## ◆ GetShaderType()

static ShaderType impeller::GetShaderType | ( | RuntimeUniformType | type | ) |
| static

Definition at line 44 of file runtime_effect_contents.cc.

44 {
45 switch (type) {
46 case kSampledImage:
47 return ShaderType::kSampledImage;
48 case kFloat:
49 return ShaderType::kFloat;
50 case kBoolean:
51 case kSignedByte:
52 case kUnsignedByte:
53 case kSignedShort:
54 case kUnsignedShort:
55 case kSignedInt:
56 case kUnsignedInt:
57 case kSignedInt64:
58 case kUnsignedInt64:
59 case kHalfFloat:
60 case kDouble:
61 VALIDATION_LOG << "Unsupported uniform type.";
62 return ShaderType::kVoid;
63 }
64 }

References kBoolean, kDouble, kFloat, kHalfFloat, kSampledImage, kSignedByte, kSignedInt, kSignedInt64, kSignedShort, kUnsignedByte, kUnsignedInt, kUnsignedInt64, kUnsignedShort, kVoid, and VALIDATION_LOG.

Referenced by MakeShaderMetadata().

## ◆ GetSupportedDeviceExtensions()

static std::optional<std::set<std::string> > impeller::GetSupportedDeviceExtensions | ( | const vk::PhysicalDevice & | physical_device | ) |
| static

Definition at line 181 of file capabilities_vk.cc.

182 {
183 auto device_extensions = physical_device.enumerateDeviceExtensionProperties();
184 if (device_extensions.result != vk::Result::eSuccess) {
185 return std::nullopt;
186 }
187
188 std::set<std::string> exts;
189 for (const auto& device_extension : device_extensions.value) {
190 exts.insert(device_extension.extensionName);
191 };
192
193 return exts;
194 }

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceExtensions(), and impeller::CapabilitiesVK::SetPhysicalDevice().

## ◆ GetTextureTypeFromDescriptor()

static TextureGLES::Type impeller::GetTextureTypeFromDescriptor | ( | const TextureDescriptor & | desc | ) |
| static

Definition at line 20 of file texture_gles.cc.

21 {
22 const auto usage = static_cast<TextureUsageMask>(desc.usage);
23 const auto render_target =
24 static_cast<TextureUsageMask>(TextureUsage::kRenderTarget);
25 const auto is_msaa = desc.sample_count == SampleCount::kCount4;
26 if (usage == render_target && desc.format == PixelFormat::kS8UInt) {
27 return is_msaa ? TextureGLES::Type::kRenderBufferMultisampled
28 : TextureGLES::Type::kRenderBuffer;
29 }
30 return is_msaa ? TextureGLES::Type::kTextureMultisampled
31 : TextureGLES::Type::kTexture;
32 }

References impeller::TextureDescriptor::format, kCount4, impeller::TextureGLES::kRenderBuffer, impeller::TextureGLES::kRenderBufferMultisampled, kRenderTarget, kS8UInt, impeller::TextureGLES::kTexture, impeller::TextureGLES::kTextureMultisampled, impeller::TextureDescriptor::sample_count, and impeller::TextureDescriptor::usage.

## ◆ GetVKClearValues()

static std::vector<vk::ClearValue> impeller::GetVKClearValues | ( | const RenderTarget & | target | ) |
| static

Definition at line 231 of file render_pass_vk.cc.

232 {
233 std::vector<vk::ClearValue> clears;
234
235 for (const auto& [_, color] : target.GetColorAttachments()) {
236 clears.emplace_back(VKClearValueFromColor(color.clear_color));
237 if (color.resolve_texture) {
238 clears.emplace_back(VKClearValueFromColor(color.clear_color));
239 }
240 }
241
242 const auto& depth = target.GetDepthAttachment();
243 const auto& stencil = target.GetStencilAttachment();
244
245 if (depth.has_value()) {
246 clears.emplace_back(VKClearValueFromDepthStencil(
247 stencil ? stencil->clear_stencil : 0u, depth->clear_depth));
248 }
249
250 if (stencil.has_value()) {
251 clears.emplace_back(VKClearValueFromDepthStencil(
252 stencil->clear_stencil, depth ? depth->clear_depth : 0.0f));
253 }
254
255 return clears;
256 }

References impeller::RenderTarget::GetColorAttachments(), impeller::RenderTarget::GetDepthAttachment(), impeller::RenderTarget::GetStencilAttachment(), VKClearValueFromColor(), and VKClearValueFromDepthStencil().

## ◆ GLErrorIsFatal()

bool impeller::GLErrorIsFatal | ( | GLenum | value | ) |

Definition at line 38 of file proc_table_gles.cc.

38 {
39 switch (value) {
40 case GL_NO_ERROR:
41 return false;
42 case GL_INVALID_ENUM:
43 case GL_INVALID_VALUE:
44 case GL_INVALID_OPERATION:
45 case GL_INVALID_FRAMEBUFFER_OPERATION:
46 case GL_OUT_OF_MEMORY:
47 return true;
48 }
49 return false;
50 }

Referenced by impeller::AutoErrorCheck::~AutoErrorCheck().

## ◆ GLErrorToString()

const char * impeller::GLErrorToString | ( | GLenum | value | ) |

Definition at line 18 of file proc_table_gles.cc.

18 {
19 switch (value) {
20 case GL_NO_ERROR:
21 return "GL_NO_ERROR";
22 case GL_INVALID_ENUM:
23 return "GL_INVALID_ENUM";
24 case GL_INVALID_VALUE:
25 return "GL_INVALID_VALUE";
26 case GL_INVALID_OPERATION:
27 return "GL_INVALID_OPERATION";
28 case GL_INVALID_FRAMEBUFFER_OPERATION:
29 return "GL_INVALID_FRAMEBUFFER_OPERATION";
30 case GL_FRAMEBUFFER_COMPLETE:
31 return "GL_FRAMEBUFFER_COMPLETE";
32 case GL_OUT_OF_MEMORY:
33 return "GL_OUT_OF_MEMORY";
34 }
35 return "Unknown.";
36 }

Referenced by impeller::AutoErrorCheck::~AutoErrorCheck().

## ◆ GLESShaderNameToShaderKeyName()

static std::string impeller::GLESShaderNameToShaderKeyName | ( | const std::string & | name,
|  | ShaderStage | stage
| ) |  |
| static

Definition at line 30 of file shader_library_gles.cc.

31 {
32 std::stringstream stream;
33 stream << name;
34 switch (stage) {
35 case ShaderStage::kUnknown:
36 stream << "_unknown_";
37 break;
38 case ShaderStage::kVertex:
39 stream << "_vertex_";
40 break;
41 case ShaderStage::kFragment:
42 stream << "_fragment_";
43 break;
44 case ShaderStage::kCompute:
45 stream << "_compute_";
46 break;
47 }
48 stream << "main";
49 return stream.str();
50 }

References kCompute, kFragment, kUnknown, and kVertex.

## ◆ HandleTypeToString()

std::string impeller::HandleTypeToString | ( | HandleType | type | ) |

Definition at line 11 of file handle_gles.cc.

11 {
12 switch (type) {
13 case HandleType::kUnknown:
14 return "Unknown";
15 case HandleType::kTexture:
16 return "Texture";
17 case HandleType::kBuffer:
18 return "Buffer";
19 case HandleType::kProgram:
20 return "Program";
21 case HandleType::kRenderBuffer:
22 return "RenderBuffer";
23 case HandleType::kFrameBuffer:
24 return "Framebuffer";
25 }
26 FML_UNREACHABLE();
27 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kTexture, and kUnknown.

Referenced by std::operator<<().

## ◆ HasPrefix()

bool impeller::HasPrefix | ( | const std::string & | string,
|  | const std::string & | prefix
| ) |  |

Definition at line 30 of file strings.cc.

30 {
31 return string.find(prefix) == 0u;
32 }

Referenced by DetermineIfES(), and StripPrefix().

## ◆ HasRequiredProperties()

static bool impeller::HasRequiredProperties | ( | const vk::PhysicalDevice & | physical_device | ) |
| static

Definition at line 267 of file capabilities_vk.cc.

267 {
268 auto properties = physical_device.getProperties();
269 if (!(properties.limits.framebufferColorSampleCounts &
270 (vk::SampleCountFlagBits::e1 | vk::SampleCountFlagBits::e4))) {
271 return false;
272 }
273 return true;
274 }

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceFeatures().

## ◆ HasRequiredQueues()

static bool impeller::HasRequiredQueues | ( | const vk::PhysicalDevice & | physical_device | ) |
| static

Definition at line 276 of file capabilities_vk.cc.

276 {
277 auto queue_flags = vk::QueueFlags{};
278 for (const auto& queue : physical_device.getQueueFamilyProperties()) {
279 if (queue.queueCount == 0) {
280 continue;
281 }
282 queue_flags |= queue.queueFlags;
283 }
284 return static_cast<VkQueueFlags>(queue_flags &
285 (vk::QueueFlagBits::eGraphics |
286 vk::QueueFlagBits::eCompute |
287 vk::QueueFlagBits::eTransfer));
288 }

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceFeatures().

## ◆ HasSuffix()

bool impeller::HasSuffix | ( | const std::string & | string,
|  | const std::string & | suffix
| ) |  |

Definition at line 34 of file strings.cc.

34 {
35 auto position = string.rfind(suffix);
36 if (position == std::string::npos) {
37 return false;
38 }
39 return position == string.size() - suffix.size();
40 }

## ◆ HasSuitableColorFormat()

static bool impeller::HasSuitableColorFormat | ( | const vk::PhysicalDevice & | device,
|  | vk::Format | format
| ) |  |
| static

Definition at line 241 of file capabilities_vk.cc.

242 {
243 const auto props = device.getFormatProperties(format);
244 // This needs to be more comprehensive.
245 return !!(props.optimalTilingFeatures &
246 vk::FormatFeatureFlagBits::eColorAttachment);
247 }

Referenced by PhysicalDeviceSupportsRequiredFormats().

## ◆ HasSuitableDepthStencilFormat()

static bool impeller::HasSuitableDepthStencilFormat | ( | const vk::PhysicalDevice & | device,
|  | vk::Format | format
| ) |  |
| static

Definition at line 249 of file capabilities_vk.cc.

250 {
251 const auto props = device.getFormatProperties(format);
252 return !!(props.optimalTilingFeatures &
253 vk::FormatFeatureFlagBits::eDepthStencilAttachment);
254 }

Referenced by PhysicalDeviceSupportsRequiredFormats(), and impeller::CapabilitiesVK::SetPhysicalDevice().

## ◆ HasValidationLayers()

bool impeller::HasValidationLayers | ( |  | ) |

Definition at line 43 of file context_vk.cc.

43 {
44 return gHasValidationLayers;
45 }

References gHasValidationLayers.

Referenced by impeller::QueueVK::InsertDebugMarker(), impeller::CommandEncoderVK::InsertDebugMarker(), impeller::CommandEncoderVK::PopDebugGroup(), impeller::CommandEncoderVK::PushDebugGroup(), and impeller::ContextVK::SetDebugName().

## ◆ HeapAlloc()

static void* impeller::HeapAlloc | ( | void * | userData,
|  | unsigned int | size
| ) |  |
| static

Definition at line 11 of file tessellator.cc.

11 {
12 return malloc(size);
13 }

## ◆ HeapFree()

static void impeller::HeapFree | ( | void * | userData,
|  | void * | ptr
| ) |  |
| static

Definition at line 19 of file tessellator.cc.

19 {
20 free(ptr);
21 }

## ◆ HeapRealloc()

static void* impeller::HeapRealloc | ( | void * | userData,
|  | void * | ptr,
|  | unsigned int | size
| ) |  |
| static

Definition at line 15 of file tessellator.cc.

15 {
16 return realloc(ptr, size);
17 }

## ◆ ImpellerUnimplemented()

void impeller::ImpellerUnimplemented | ( | const char * | method,
|  | const char * | file,
|  | int | line
| ) |  |
| inline

Definition at line 30 of file config.h.

32 {
33 FML_CHECK(false) << "Unimplemented: " << method << " in " << file << ":"
34 << line;
35 std::abort();
36 }

## ◆ ImpellerValidationBreak()

void impeller::ImpellerValidationBreak | ( | const char * | message | ) |

Definition at line 40 of file validation.cc.

40 {
41 // Nothing to do. Exists for the debugger.
42 #ifdef IMPELLER_ENABLE_VALIDATION
43 std::stringstream stream;
44 stream << "Break on '" << __FUNCTION__
45 << "' to inspect point of failure: " << message;
46 if (sValidationLogsAreFatal) {
47 FML_LOG(FATAL) << stream.str();
48 } else {
49 FML_LOG(ERROR) << stream.str();
50 }
51 #endif // IMPELLER_ENABLE_VALIDATION
52 }

References sValidationLogsAreFatal.

Referenced by impeller::ValidationLog::~ValidationLog().

## ◆ ImpellerValidationErrorsSetFatal()

void impeller::ImpellerValidationErrorsSetFatal | ( | bool | fatal | ) |

Definition at line 16 of file validation.cc.

16 {
17 sValidationLogsAreFatal = fatal;
18 }

References sValidationLogsAreFatal.

Referenced by impeller::PlaygroundTest::SetUp().

## ◆ InferMetalCapabilities()

static std::unique_ptr<Capabilities> impeller::InferMetalCapabilities | ( | id< MTLDevice > | device,
|  | PixelFormat | color_format
| ) |  |
| static

Definition at line 54 of file context_mtl.mm.

56 {
57 return CapabilitiesBuilder()
58 .SetSupportsOffscreenMSAA(true)
59 .SetSupportsSSBO(true)
60 .SetSupportsBufferToTextureBlits(true)
61 .SetSupportsTextureToTextureBlits(true)
62 .SetSupportsDecalSamplerAddressMode(true)
63 .SetSupportsFramebufferFetch(DeviceSupportsFramebufferFetch(device))
64 .SetDefaultColorFormat(color_format)
65 .SetDefaultStencilFormat(PixelFormat::kS8UInt)
66 .SetDefaultDepthStencilFormat(PixelFormat::kD32FloatS8UInt)
67 .SetSupportsCompute(true)
68 .SetSupportsComputeSubgroups(DeviceSupportsComputeSubgroups(device))
69 .SetSupportsReadFromResolve(true)
70 .SetSupportsDeviceTransientTextures(true)
71 .Build();
72 }

References impeller::CapabilitiesBuilder::Build(), DeviceSupportsComputeSubgroups(), DeviceSupportsFramebufferFetch(), kD32FloatS8UInt, kS8UInt, impeller::CapabilitiesBuilder::SetDefaultColorFormat(), impeller::CapabilitiesBuilder::SetDefaultDepthStencilFormat(), impeller::CapabilitiesBuilder::SetDefaultStencilFormat(), impeller::CapabilitiesBuilder::SetSupportsBufferToTextureBlits(), impeller::CapabilitiesBuilder::SetSupportsCompute(), impeller::CapabilitiesBuilder::SetSupportsComputeSubgroups(), impeller::CapabilitiesBuilder::SetSupportsDecalSamplerAddressMode(), impeller::CapabilitiesBuilder::SetSupportsDeviceTransientTextures(), impeller::CapabilitiesBuilder::SetSupportsFramebufferFetch(), impeller::CapabilitiesBuilder::SetSupportsOffscreenMSAA(), impeller::CapabilitiesBuilder::SetSupportsReadFromResolve(), impeller::CapabilitiesBuilder::SetSupportsSSBO(), and impeller::CapabilitiesBuilder::SetSupportsTextureToTextureBlits().

Referenced by impeller::ContextMTL::UpdateOffscreenLayerPixelFormat().

## ◆ InferShaderTypefromFileExtension()

std::optional<ArchiveShaderType> impeller::InferShaderTypefromFileExtension | ( | const std::filesystem::path & | path | ) |

Definition at line 19 of file shader_archive_writer.cc.

20 {
21 if (path == ".vert") {
22 return ArchiveShaderType::kVertex;
23 } else if (path == ".frag") {
24 return ArchiveShaderType::kFragment;
25 } else if (path == ".comp") {
26 return ArchiveShaderType::kCompute;
27 }
28 return std::nullopt;
29 }

References kCompute, kFragment, and kVertex.

Referenced by impeller::ShaderArchiveWriter::AddShaderAtPath().

## ◆ InsertImageMemoryBarrier()

static void impeller::InsertImageMemoryBarrier | ( | const vk::CommandBuffer & | cmd,
|  | const vk::Image & | image,
|  | vk::AccessFlags | src_access_mask,
|  | vk::AccessFlags | dst_access_mask,
|  | vk::ImageLayout | old_layout,
|  | vk::ImageLayout | new_layout,
|  | vk::PipelineStageFlags | src_stage,
|  | vk::PipelineStageFlags | dst_stage,
|  | uint32_t | base_mip_level,
|  | uint32_t | mip_level_count = `1u`
| ) |  |
| static

Definition at line 217 of file blit_command_vk.cc.

226 {
227 if (old_layout == new_layout) {
228 return;
229 }
230
231 vk::ImageMemoryBarrier barrier;
232 barrier.srcAccessMask = src_access_mask;
233 barrier.dstAccessMask = dst_access_mask;
234 barrier.oldLayout = old_layout;
235 barrier.newLayout = new_layout;
236 barrier.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
237 barrier.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED;
238 barrier.image = image;
239 barrier.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;
240 barrier.subresourceRange.baseMipLevel = base_mip_level;
241 barrier.subresourceRange.levelCount = mip_level_count;
242 barrier.subresourceRange.baseArrayLayer = 0u;
243 barrier.subresourceRange.layerCount = 1u;
244
245 cmd.pipelineBarrier(src_stage, dst_stage, {}, nullptr, nullptr, barrier);
246 }

Referenced by impeller::BlitGenerateMipmapCommandVK::Encode().

## ◆ InvertPorterDuffBlend()

std::optional< BlendMode > impeller::InvertPorterDuffBlend | ( | BlendMode | blend_mode | ) |

Definition at line 26 of file blend_filter_contents.cc.

26 {
27 switch (blend_mode) {
28 case BlendMode::kClear:
29 return BlendMode::kClear;
30 case BlendMode::kSource:
31 return BlendMode::kDestination;
32 case BlendMode::kDestination:
33 return BlendMode::kSource;
34 case BlendMode::kSourceOver:
35 return BlendMode::kDestinationOver;
36 case BlendMode::kDestinationOver:
37 return BlendMode::kSourceOver;
38 case BlendMode::kSourceIn:
39 return BlendMode::kDestinationIn;
40 case BlendMode::kDestinationIn:
41 return BlendMode::kSourceIn;
42 case BlendMode::kSourceOut:
43 return BlendMode::kDestinationOut;
44 case BlendMode::kDestinationOut:
45 return BlendMode::kSourceOut;
46 case BlendMode::kSourceATop:
47 return BlendMode::kDestinationATop;
48 case BlendMode::kDestinationATop:
49 return BlendMode::kSourceATop;
50 case BlendMode::kXor:
51 return BlendMode::kXor;
52 case BlendMode::kPlus:
53 return BlendMode::kPlus;
54 case BlendMode::kModulate:
55 return BlendMode::kModulate;
56 default:
57 return std::nullopt;
58 }
59 }

References kClear, kDestination, kDestinationATop, kDestinationIn, kDestinationOut, kDestinationOver, kModulate, kPlus, kSource, kSourceATop, kSourceIn, kSourceOut, kSourceOver, and kXor.

Referenced by impeller::AtlasContents::Render().

## ◆ IPLR_CAPABILITY()

class impeller::IPLR_CAPABILITY | ( | "mutex" |  | ) |

Definition at line 24 of file thread.h.

24 {
25 public:
26 Mutex() = default;
27
28 ~Mutex() = default;
29
30 void Lock() IPLR_ACQUIRE() { mutex_.lock(); }
31
32 void Unlock() IPLR_RELEASE() { mutex_.unlock(); }
33
34 private:
35 friend class ConditionVariable;
36
37 std::mutex mutex_;
38
39 Mutex(const Mutex&) = delete;
40
41 Mutex(Mutex&&) = delete;
42
43 Mutex& operator=(const Mutex&) = delete;
44
45 Mutex& operator=(Mutex&&) = delete;
46 };

References IPLR_ACQUIRE, and IPLR_RELEASE.

## ◆ IPLR_GUARDED_BY()

static std::unordered_map<const ContextVK*, std::vector<std::weak_ptr<CommandPoolVK> > > g_all_pools_map impeller::IPLR_GUARDED_BY | ( | g_all_pools_map_mutex |  | ) |
| static

## ◆ IsDepthWritable()

constexpr bool impeller::IsDepthWritable | ( | PixelFormat | format | ) |
| constexpr

Definition at line 114 of file formats.h.

114 {
115 switch (format) {
116 case PixelFormat::kD24UnormS8Uint:
117 case PixelFormat::kD32FloatS8UInt:
118 return true;
119 default:
120 return false;
121 }
122 }

References kD24UnormS8Uint, and kD32FloatS8UInt.

## ◆ IsMappingSPIRV()

static bool impeller::IsMappingSPIRV | ( | const fml::Mapping & | mapping | ) |
| static

Definition at line 116 of file shader_library_vk.cc.

116 {
117 // https://registry.khronos.org/SPIR-V/specs/1.0/SPIRV.html#Magic
118 const uint32_t kSPIRVMagic = 0x07230203;
119 if (mapping.GetSize() < sizeof(kSPIRVMagic)) {
120 return false;
121 }
122 uint32_t magic = 0u;
123 ::memcpy(&magic, mapping.GetMapping(), sizeof(magic));
124 return magic == kSPIRVMagic;
125 }

## ◆ IsMultisampleCapable()

constexpr bool impeller::IsMultisampleCapable | ( | TextureType | type | ) |
| constexpr

Definition at line 278 of file formats.h.

278 {
279 switch (type) {
280 case TextureType::kTexture2D:
281 case TextureType::kTextureCube:
282 case TextureType::kTextureExternalOES:
283 return false;
284 case TextureType::kTexture2DMultisample:
285 return true;
286 }
287 return false;
288 }

References kTexture2D, kTexture2DMultisample, kTextureCube, and kTextureExternalOES.

Referenced by impeller::TextureDescriptor::SamplingOptionsAreValid().

## ◆ IsStencilWritable()

constexpr bool impeller::IsStencilWritable | ( | PixelFormat | format | ) |
| constexpr

Definition at line 124 of file formats.h.

124 {
125 switch (format) {
126 case PixelFormat::kS8UInt:
127 case PixelFormat::kD24UnormS8Uint:
128 case PixelFormat::kD32FloatS8UInt:
129 return true;
130 default:
131 return false;
132 }
133 }

References kD24UnormS8Uint, kD32FloatS8UInt, and kS8UInt.

## ◆ IterateOptionalDeviceExtensions()

static void impeller::IterateOptionalDeviceExtensions | ( | const std::function< void(OptionalDeviceExtensionVK)> & | it | ) |
| static

Definition at line 170 of file capabilities_vk.cc.

171 {
172 if (!it) {
173 return;
174 }
175 for (size_t i = 0;
176 i < static_cast<uint32_t>(OptionalDeviceExtensionVK::kLast); i++) {
177 it(static_cast<OptionalDeviceExtensionVK>(i));
178 }
179 }

References kLast.

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceExtensions(), and impeller::CapabilitiesVK::SetPhysicalDevice().

## ◆ JoinLabels()

static std::string impeller::JoinLabels | ( | const VkDebugUtilsLabelEXT * | labels,
|  | size_t | count
| ) |  |
| static

Definition at line 48 of file debug_report_vk.cc.

49 {
50 std::stringstream stream;
51 for (size_t i = 0u; i < count; i++) {
52 stream << labels[i].pLabelName;
53 if (i != count - 1u) {
54 stream << ", ";
55 }
56 }
57 return stream.str();
58 }

## ◆ JoinVKDebugUtilsObjectNameInfoEXT()

static std::string impeller::JoinVKDebugUtilsObjectNameInfoEXT | ( | const VkDebugUtilsObjectNameInfoEXT * | names,
|  | size_t | count
| ) |  |
| static

Definition at line 60 of file debug_report_vk.cc.

62 {
63 std::stringstream stream;
64 for (size_t i = 0u; i < count; i++) {
65 stream << vk::to_string(vk::ObjectType(names[i].objectType)) << " ["
66 << names[i].objectHandle << "] [";
67 if (names[i].pObjectName != nullptr) {
68 stream << names[i].pObjectName;
69 } else {
70 stream << "UNNAMED";
71 }
72 stream << "]";
73 if (i != count - 1u) {
74 stream << ", ";
75 }
76 }
77 return stream.str();
78 }

## ◆ LinearSolve()

static Scalar impeller::LinearSolve | ( | Scalar | t,
|  | Scalar | p0,
|  | Scalar | p1
| ) |  |
| inline static

Definition at line 15 of file path_component.cc.

15 {
16 return p0 + t * (p1 - p0);
17 }

Referenced by impeller::LinearPathComponent::Solve().

## ◆ LineTo()

IMPELLER_API void impeller::LineTo | ( | PathBuilder * | builder,
|  | Scalar | x,
|  | Scalar | y
| ) |  |

Definition at line 22 of file tessellator.cc.

22 {
23 builder->LineTo(Point(x, y));
24 }

References impeller::PathBuilder::LineTo().

Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ LinkProgram()

static bool impeller::LinkProgram | ( | const ReactorGLES & | reactor,
|  | const std::shared_ptr< PipelineGLES > & | pipeline,
|  | const std::shared_ptr< const ShaderFunction > & | vert_function,
|  | const std::shared_ptr< const ShaderFunction > & | frag_function
| ) |  |
| static

Definition at line 77 of file pipeline_library_gles.cc.

81 {
82 TRACE_EVENT0("impeller", __FUNCTION__);
83
84 const auto& descriptor = pipeline->GetDescriptor();
85
86 auto vert_mapping =
87 ShaderFunctionGLES::Cast(*vert_function).GetSourceMapping();
88 auto frag_mapping =
89 ShaderFunctionGLES::Cast(*frag_function).GetSourceMapping();
90
91 const auto& gl = reactor.GetProcTable();
92
93 auto vert_shader = gl.CreateShader(GL_VERTEX_SHADER);
94 auto frag_shader = gl.CreateShader(GL_FRAGMENT_SHADER);
95
96 if (vert_shader == 0 || frag_shader == 0) {
97 VALIDATION_LOG << "Could not create shader handles.";
98 return false;
99 }
100
101 gl.SetDebugLabel(DebugResourceType::kShader, vert_shader,
102 SPrintF("%s Vertex Shader", descriptor.GetLabel().c_str()));
103 gl.SetDebugLabel(
104 DebugResourceType::kShader, frag_shader,
105 SPrintF("%s Fragment Shader", descriptor.GetLabel().c_str()));
106
107 fml::ScopedCleanupClosure delete_vert_shader(
108 [&gl, vert_shader]() { gl.DeleteShader(vert_shader); });
109 fml::ScopedCleanupClosure delete_frag_shader(
110 [&gl, frag_shader]() { gl.DeleteShader(frag_shader); });
111
112 gl.ShaderSourceMapping(vert_shader, *vert_mapping,
113 descriptor.GetSpecializationConstants());
114 gl.ShaderSourceMapping(frag_shader, *frag_mapping,
115 descriptor.GetSpecializationConstants());
116
117 gl.CompileShader(vert_shader);
118 gl.CompileShader(frag_shader);
119
120 GLint vert_status = GL_FALSE;
121 GLint frag_status = GL_FALSE;
122
123 gl.GetShaderiv(vert_shader, GL_COMPILE_STATUS, &vert_status);
124 gl.GetShaderiv(frag_shader, GL_COMPILE_STATUS, &frag_status);
125
126 if (vert_status != GL_TRUE) {
127 LogShaderCompilationFailure(gl, vert_shader, descriptor.GetLabel(),
128 *vert_mapping, ShaderStage::kVertex);
129 return false;
130 }
131
132 if (frag_status != GL_TRUE) {
133 LogShaderCompilationFailure(gl, frag_shader, descriptor.GetLabel(),
134 *frag_mapping, ShaderStage::kFragment);
135 return false;
136 }
137
138 auto program = reactor.GetGLHandle(pipeline->GetProgramHandle());
139 if (!program.has_value()) {
140 VALIDATION_LOG << "Could not get program handle from reactor.";
141 return false;
142 }
143
144 gl.AttachShader(*program, vert_shader);
145 gl.AttachShader(*program, frag_shader);
146
147 fml::ScopedCleanupClosure detach_vert_shader(
148 [&gl, program = *program, vert_shader]() {
149 gl.DetachShader(program, vert_shader);
150 });
151 fml::ScopedCleanupClosure detach_frag_shader(
152 [&gl, program = *program, frag_shader]() {
153 gl.DetachShader(program, frag_shader);
154 });
155
156 for (const auto& stage_input :
157 descriptor.GetVertexDescriptor()->GetStageInputs()) {
158 gl.BindAttribLocation(*program, //
159 static_cast<GLuint>(stage_input.location), //
160 stage_input.name //
161 );
162 }
163
164 gl.LinkProgram(*program);
165
166 GLint link_status = GL_FALSE;
167 gl.GetProgramiv(*program, GL_LINK_STATUS, &link_status);
168
169 if (link_status != GL_TRUE) {
170 VALIDATION_LOG << "Could not link shader program: "
171 << gl.GetProgramInfoLogString(*program);
172 return false;
173 }
174 return true;
175 }

References impeller::BackendCast< ShaderFunctionGLES, ShaderFunction >::Cast(), impeller::ReactorGLES::GetGLHandle(), impeller::ReactorGLES::GetProcTable(), impeller::ShaderFunctionGLES::GetSourceMapping(), kFragment, kShader, kVertex, LogShaderCompilationFailure(), SPrintF(), and VALIDATION_LOG.

## ◆ LoadActionToString()

constexpr const char* impeller::LoadActionToString | ( | LoadAction | action | ) |
| constexpr

Definition at line 210 of file formats.h.

210 {
211 switch (action) {
212 case LoadAction::kDontCare:
213 return "DontCare";
214 case LoadAction::kLoad:
215 return "Load";
216 case LoadAction::kClear:
217 return "Clear";
218 }
219 }

References kClear, kDontCare, and kLoad.

Referenced by AttachmentToString().

## ◆ LogMTLCommandBufferErrorIfPresent()

static bool impeller::LogMTLCommandBufferErrorIfPresent | ( | id< MTLCommandBuffer > | buffer | ) |
| static

Definition at line 61 of file command_buffer_mtl.mm.

61 {
62 if (!buffer) {
63 return true;
64 }
65
66 if (buffer.status == MTLCommandBufferStatusCompleted) {
67 return true;
68 }
69
70 std::stringstream stream;
71 stream << ">>>>>>>" << std::endl;
72 stream << "Impeller command buffer could not be committed!" << std::endl;
73
74 if (auto desc = buffer.error.localizedDescription) {
75 stream << desc.UTF8String << std::endl;
76 }
77
78 if (buffer.error) {
79 stream << "Domain: "
80 << (buffer.error.domain.length > 0u ? buffer.error.domain.UTF8String
81 : "<unknown>")
82 << " Code: "
83 << MTLCommandBufferErrorToString(
84 static_cast<MTLCommandBufferError>(buffer.error.code))
85 .UTF8String
86 << std::endl;
87 }
88
89 if (@available(iOS 14.0, macOS 11.0, *)) {
90 NSArray<id<MTLCommandBufferEncoderInfo>>* infos =
91 buffer.error.userInfo[MTLCommandBufferEncoderInfoErrorKey];
92 for (id<MTLCommandBufferEncoderInfo> info in infos) {
93 stream << (info.label.length > 0u ? info.label.UTF8String
94 : "<Unlabelled Render Pass>")
95 << ": "
96 << MTLCommandEncoderErrorStateToString(info.errorState).UTF8String
97 << std::endl;
98
99 auto signposts = [info.debugSignposts componentsJoinedByString:@", "];
100 if (signposts.length > 0u) {
101 stream << signposts.UTF8String << std::endl;
102 }
103 }
104
105 for (id<MTLFunctionLog> log in buffer.logs) {
106 auto desc = log.description;
107 if (desc.length > 0u) {
108 stream << desc.UTF8String << std::endl;
109 }
110 }
111 }
112
113 stream << "<<<<<<<";
114 VALIDATION_LOG << stream.str();
115 return false;
116 }

References MTLCommandBufferErrorToString(), and VALIDATION_LOG.

## ◆ LogShaderCompilationFailure()

static void impeller::LogShaderCompilationFailure | ( | const ProcTableGLES & | gl,
|  | GLuint | shader,
|  | const std::string & | name,
|  | const fml::Mapping & | source_mapping,
|  | ShaderStage | stage
| ) |  |
| static

Definition at line 49 of file pipeline_library_gles.cc.

53 {
54 std::stringstream stream;
55 stream << "Failed to compile ";
56 switch (stage) {
57 case ShaderStage::kUnknown:
58 stream << "unknown";
59 break;
60 case ShaderStage::kVertex:
61 stream << "vertex";
62 break;
63 case ShaderStage::kFragment:
64 stream << "fragment";
65 break;
66 case ShaderStage::kCompute:
67 stream << "compute";
68 break;
69 }
70 stream << " shader for '" << name << "' with error:" << std::endl;
71 stream << GetShaderInfoLog(gl, shader) << std::endl;
72 stream << "Shader source was: " << std::endl;
73 stream << GetShaderSource(gl, shader) << std::endl;
74 VALIDATION_LOG << stream.str();
75 }

References GetShaderInfoLog(), GetShaderSource(), kCompute, kFragment, kUnknown, kVertex, and VALIDATION_LOG.

Referenced by LinkProgram().

## ◆ Luminosity()

static constexpr Scalar impeller::Luminosity | ( | Vector3 | color | ) |
| inline static constexpr

Definition at line 140 of file color.cc.

140 {
141 return color.x * 0.3f + color.y * 0.59f + color.z * 0.11f;
142 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by impeller::Color::Blend(), ClipColor(), impeller::BlendFilterContents::SetBlendMode(), and SetLuminosity().

## ◆ Main()

bool impeller::Main | ( | const fml::CommandLine & | command_line | ) |

Definition at line 13 of file shader_archive_main.cc.

13 {
14 ShaderArchiveWriter writer;
15
16 std::string output;
17 if (!command_line.GetOptionValue("output", &output)) {
18 std::cerr << "Output path not specified." << std::endl;
19 return false;
20 }
21
22 for (const auto& input : command_line.GetOptionValues("input")) {
23 if (!writer.AddShaderAtPath(std::string{input})) {
24 std::cerr << "Could not add shader at path: " << input << std::endl;
25 return false;
26 }
27 }
28
29 auto archive = writer.CreateMapping();
30 if (!archive) {
31 std::cerr << "Could not create shader archive." << std::endl;
32 return false;
33 }
34
35 auto current_directory =
36 fml::OpenDirectory(std::filesystem::current_path().string().c_str(),
37 false, fml::FilePermission::kReadWrite);
38 auto output_path =
39 std::filesystem::absolute(std::filesystem::current_path() / output);
40 if (!fml::WriteAtomically(current_directory, output_path.string().c_str(),
41 *archive)) {
42 std::cerr << "Could not write shader archive to path " << output
43 << std::endl;
44 return false;
45 }
46
47 return true;
48 }

References impeller::ShaderArchiveWriter::AddShaderAtPath(), and impeller::ShaderArchiveWriter::CreateMapping().

Referenced by main().

## ◆ MakeShaderMetadata()

static std::shared_ptr<ShaderMetadata> impeller::MakeShaderMetadata | ( | const RuntimeUniformDescription & | uniform | ) |
| static

Definition at line 66 of file runtime_effect_contents.cc.

67 {
68 auto metadata = std::make_shared<ShaderMetadata>();
69 metadata->name = uniform.name;
70 metadata->members.emplace_back(ShaderStructMemberMetadata{
71 .type = GetShaderType(uniform.type),
72 .size = uniform.GetSize(),
73 .byte_length = uniform.bit_width / 8,
74 });
75
76 return metadata;
77 }

References impeller::RuntimeUniformDescription::bit_width, GetShaderType(), impeller::RuntimeUniformDescription::GetSize(), impeller::RuntimeUniformDescription::name, impeller::RuntimeUniformDescription::type, and impeller::ShaderStructMemberMetadata::type.

Referenced by impeller::RuntimeEffectContents::Render().

## ◆ MakeSharedVK()

template<class T >

auto impeller::MakeSharedVK | ( | vk::UniqueHandle< T, VULKAN_HPP_DEFAULT_DISPATCHER_TYPE > | handle | ) |

Definition at line 43 of file shared_object_vk.h.

44 {
45 if (!handle) {
46 return std::shared_ptr<SharedObjectVKT<T>>{nullptr};
47 }
48 return std::make_shared<SharedObjectVKT<T>>(std::move(handle));
49 }

## ◆ MakeTextFrameFromTextBlobSkia()

std::shared_ptr< impeller::TextFrame > impeller::MakeTextFrameFromTextBlobSkia | ( | const sk_sp< SkTextBlob > & | blob | ) |

Definition at line 41 of file text_frame_skia.cc.

42 {
43 bool has_color = false;
44 std::vector<TextRun> runs;
45 for (SkTextBlobRunIterator run(blob.get()); !run.done(); run.next()) {
46 // TODO(jonahwilliams): ask Skia for a public API to look this up.
47 // https://github.com/flutter/flutter/issues/112005
48 SkStrikeSpec strikeSpec = SkStrikeSpec::MakeWithNoDevice(run.font());
49 SkBulkGlyphMetricsAndPaths paths{strikeSpec};
50
51 const auto glyph_count = run.glyphCount();
52 const auto* glyphs = run.glyphs();
53 switch (run.positioning()) {
54 case SkTextBlobRunIterator::kFull_Positioning: {
55 std::vector<SkRect> glyph_bounds;
56 glyph_bounds.resize(glyph_count);
57 SkFont font = run.font();
58 auto font_size = font.getSize();
59 // For some platforms (including Android), `SkFont::getBounds()` snaps
60 // the computed bounds to integers. And so we scale up the font size
61 // prior to fetching the bounds to ensure that the returned bounds are
62 // always precise enough.
63 font.setSize(kScaleSize);
64 font.getBounds(glyphs, glyph_count, glyph_bounds.data(), nullptr);
65
66 std::vector<TextRun::GlyphPosition> positions;
67 positions.reserve(glyph_count);
68 for (auto i = 0u; i < glyph_count; i++) {
69 // kFull_Positioning has two scalars per glyph.
70 const SkPoint* glyph_points = run.points();
71 const auto* point = glyph_points + i;
72 Glyph::Type type = paths.glyph(glyphs[i])->isColor()
73 ? Glyph::Type::kBitmap
74 : Glyph::Type::kPath;
75 has_color |= type == Glyph::Type::kBitmap;
76
77 positions.emplace_back(TextRun::GlyphPosition{
78 Glyph{glyphs[i], type,
79 ToRect(glyph_bounds[i]).Scale(font_size / kScaleSize)},
80 Point{point->x(), point->y()}});
81 }
82 TextRun text_run(ToFont(run), positions);
83 runs.emplace_back(text_run);
84 break;
85 }
86 default:
87 FML_DLOG(ERROR) << "Unimplemented.";
88 continue;
89 }
90 }
91 return std::make_shared<TextFrame>(runs, ToRect(blob->bounds()), has_color);
92 }

References impeller::Glyph::kBitmap, impeller::Glyph::kPath, kScaleSize, impeller::TRect< T >::Scale(), ToFont(), ToRect(), and impeller::TPoint< T >::x.

Referenced by impeller::testing::TEST_P().

## ◆ MakeTextFrameSTB()

std::shared_ptr< TextFrame > impeller::MakeTextFrameSTB | ( | const std::shared_ptr< TypefaceSTB > & | typeface_stb,
|  | Font::Metrics | metrics,
|  | const std::string & | text
| ) |  |

Definition at line 11 of file text_frame_stb.cc.

14 {
15 TextRun run(Font(typeface_stb, metrics));
16
17 // Shape the text run using STB. The glyph positions could also be resolved
18 // using a more advanced text shaper such as harfbuzz.
19
20 float scale = stbtt_ScaleForPixelHeight(
21 typeface_stb->GetFontInfo(),
22 metrics.point_size * TypefaceSTB::kPointsToPixels);
23
24 int ascent, descent, line_gap;
25 stbtt_GetFontVMetrics(typeface_stb->GetFontInfo(), &ascent, &descent,
26 &line_gap);
27 ascent = std::round(ascent * scale);
28 descent = std::round(descent * scale);
29
30 float x = 0;
31 for (size_t i = 0; i < text.size(); i++) {
32 int glyph_index =
33 stbtt_FindGlyphIndex(typeface_stb->GetFontInfo(), text[i]);
34
35 int x0, y0, x1, y1;
36 stbtt_GetGlyphBitmapBox(typeface_stb->GetFontInfo(), glyph_index, scale,
37 scale, &x0, &y0, &x1, &y1);
38 float y = y0;
39
40 int advance_width;
41 int left_side_bearing;
42 stbtt_GetGlyphHMetrics(typeface_stb->GetFontInfo(), glyph_index,
43 &advance_width, &left_side_bearing);
44
45 Glyph glyph(glyph_index, Glyph::Type::kPath,
46 Rect::MakeXYWH(0, 0, x1 - x0, y1 - y0));
47 run.AddGlyph(glyph, {x + (left_side_bearing * scale), y});
48
49 if (i + 1 < text.size()) {
50 int kerning = stbtt_GetCodepointKernAdvance(typeface_stb->GetFontInfo(),
51 text[i], text[i + 1]);
52 x += std::round((advance_width + kerning) * scale);
53 }
54 }
55
56 std::optional<Rect> result;
57 for (const auto& glyph_position : run.GetGlyphPositions()) {
58 Rect glyph_rect = Rect::MakeOriginSize(
59 glyph_position.position + glyph_position.glyph.bounds.GetOrigin(),
60 glyph_position.glyph.bounds.GetSize());
61 result = result.has_value() ? result->Union(glyph_rect) : glyph_rect;
62 }
63
64 std::vector<TextRun> runs = {run};
65 return std::make_shared<TextFrame>(
66 runs, result.value_or(Rect::MakeLTRB(0, 0, 0, 0)), false);
67 }

References impeller::TextRun::AddGlyph(), impeller::TextRun::GetGlyphPositions(), impeller::Glyph::kPath, impeller::TypefaceSTB::kPointsToPixels, impeller::TRect< Scalar >::MakeLTRB(), impeller::TRect< Scalar >::MakeOriginSize(), impeller::TRect< Scalar >::MakeXYWH(), and impeller::Font::Metrics::point_size.

## ◆ MakeVertices()

std::shared_ptr< VerticesGeometry > impeller::MakeVertices | ( | const flutter::DlVertices * | vertices | ) |

Definition at line 31 of file dl_vertices_geometry.cc.

32 {
33 auto bounds = ToRect(vertices->bounds());
34 auto mode = ToVertexMode(vertices->mode());
35 std::vector<Point> positions(vertices->vertex_count());
36 for (auto i = 0; i < vertices->vertex_count(); i++) {
37 positions[i] = skia_conversions::ToPoint(vertices->vertices()[i]);
38 }
39
40 std::vector<uint16_t> indices(vertices->index_count());
41 for (auto i = 0; i < vertices->index_count(); i++) {
42 indices[i] = vertices->indices()[i];
43 }
44
45 std::vector<Color> colors;
46 if (vertices->colors()) {
47 colors.reserve(vertices->vertex_count());
48 for (auto i = 0; i < vertices->vertex_count(); i++) {
49 colors.push_back(
50 skia_conversions::ToColor(vertices->colors()[i]).Premultiply());
51 }
52 }
53 std::vector<Point> texture_coordinates;
54 if (vertices->texture_coordinates()) {
55 texture_coordinates.reserve(vertices->vertex_count());
56 for (auto i = 0; i < vertices->vertex_count(); i++) {
57 texture_coordinates.push_back(
58 skia_conversions::ToPoint(vertices->texture_coordinates()[i]));
59 }
60 }
61 return std::make_shared<VerticesGeometry>(
62 positions, indices, texture_coordinates, colors, bounds, mode);
63 }

References impeller::Color::Premultiply(), impeller::skia_conversions::ToColor(), impeller::skia_conversions::ToPoint(), ToRect(), and ToVertexMode().

Referenced by impeller::DlDispatcher::drawVertices().

## ◆ Min()

static constexpr Color impeller::Min | ( | Color | c,
|  | float | threshold
| ) |  |
| inline static constexpr

Definition at line 132 of file color.cc.

132 {
133 return Color(std::min(c.red, threshold), std::min(c.green, threshold),
134 std::min(c.blue, threshold), std::min(c.alpha, threshold));
135 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

Referenced by impeller::Color::Blend().

## ◆ MoveTo()

IMPELLER_API void impeller::MoveTo | ( | PathBuilder * | builder,
|  | Scalar | x,
|  | Scalar | y
| ) |  |

Definition at line 18 of file tessellator.cc.

18 {
19 builder->MoveTo(Point(x, y));
20 }

References impeller::PathBuilder::MoveTo().

Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ MTLCommandBufferErrorToString()

static NSString* impeller::MTLCommandBufferErrorToString | ( | MTLCommandBufferError | code | ) |
| static

Definition at line 36 of file command_buffer_mtl.mm.

36 {
37 switch (code) {
38 case MTLCommandBufferErrorNone:
39 return @"none";
40 case MTLCommandBufferErrorInternal:
41 return @"internal";
42 case MTLCommandBufferErrorTimeout:
43 return @"timeout";
44 case MTLCommandBufferErrorPageFault:
45 return @"page fault";
46 case MTLCommandBufferErrorNotPermitted:
47 return @"not permitted";
48 case MTLCommandBufferErrorOutOfMemory:
49 return @"out of memory";
50 case MTLCommandBufferErrorInvalidResource:
51 return @"invalid resource";
52 case MTLCommandBufferErrorMemoryless:
53 return @"memory-less";
54 default:
55 break;
56 }
57
58 return [NSString stringWithFormat:@"<unknown> %zu", code];
59 }

Referenced by LogMTLCommandBufferErrorIfPresent().

## ◆ MTLShaderLibraryFromFileData()

static NSArray<id<MTLLibrary> >* impeller::MTLShaderLibraryFromFileData | ( | id< MTLDevice > | device,
|  | const std::vector< std::shared_ptr< fml::Mapping >> & | libraries_data,
|  | const std::string & | label
| ) |  |
| static

Definition at line 179 of file context_mtl.mm.

182 {
183 NSMutableArray<id<MTLLibrary>>* found_libraries = [NSMutableArray array];
184 for (const auto& library_data : libraries_data) {
185 if (library_data == nullptr) {
186 FML_LOG(ERROR) << "Shader library data was null.";
187 return nil;
188 }
189
190 __block auto data = library_data;
191
192 auto dispatch_data =
193 ::dispatch_data_create(library_data->GetMapping(), // buffer
194 library_data->GetSize(), // size
195 dispatch_get_main_queue(), // queue
196 ^() {
197 // We just need a reference.
198 data.reset();
199 } // destructor
200 );
201 if (!dispatch_data) {
202 FML_LOG(ERROR) << "Could not wrap shader data in dispatch data.";
203 return nil;
204 }
205
206 NSError* shader_library_error = nil;
207 auto library = [device newLibraryWithData:dispatch_data
208 error:&shader_library_error];
209 if (!library) {
210 FML_LOG(ERROR) << "Could not create shader library: "
211 << shader_library_error.localizedDescription.UTF8String;
212 return nil;
213 }
214 if (!label.empty()) {
215 library.label = @(label.c_str());
216 }
217 [found_libraries addObject:library];
218 }
219 return found_libraries;
220 }

Referenced by impeller::ContextMTL::Create().

## ◆ MTLShaderLibraryFromFilePaths()

static NSArray<id<MTLLibrary> >* impeller::MTLShaderLibraryFromFilePaths | ( | id< MTLDevice > | device,
|  | const std::vector< std::string > & | libraries_paths
| ) |  |
| static

Definition at line 156 of file context_mtl.mm.

158 {
159 NSMutableArray<id<MTLLibrary>>* found_libraries = [NSMutableArray array];
160 for (const auto& library_path : libraries_paths) {
161 if (!fml::IsFile(library_path)) {
162 VALIDATION_LOG << "Shader library does not exist at path '"
163 << library_path << "'";
164 return nil;
165 }
166 NSError* shader_library_error = nil;
167 auto library = [device newLibraryWithFile:@(library_path.c_str())
168 error:&shader_library_error];
169 if (!library) {
170 FML_LOG(ERROR) << "Could not create shader library: "
171 << shader_library_error.localizedDescription.UTF8String;
172 return nil;
173 }
174 [found_libraries addObject:library];
175 }
176 return found_libraries;
177 }

References VALIDATION_LOG.

Referenced by impeller::ContextMTL::Create().

## ◆ NearEqual()

static bool impeller::NearEqual | ( | Scalar | a,
|  | Scalar | b,
|  | Scalar | epsilon
| ) |  |
| inline static

Definition at line 245 of file path_component.cc.

245 {
246 return (a > (b - epsilon)) && (a < (b + epsilon));
247 }

Referenced by NearZero().

## ◆ NearZero()

static bool impeller::NearZero | ( | Scalar | a | ) |
| inline static

Definition at line 249 of file path_component.cc.

249 {
250 return NearEqual(a, 0.0, 1e-12);
251 }

References NearEqual().

Referenced by CubicPathBoundingPopulateValues().

## ◆ NormalizeUniformKey()

static std::string impeller::NormalizeUniformKey | ( | const std::string & | key | ) |
| static

Definition at line 51 of file buffer_bindings_gles.cc.

51 {
52 std::string result;
53 result.reserve(key.length());
54 for (char ch : key) {
55 if (ch != '_') {
56 result.push_back(toupper(ch));
57 }
58 }
59 return result;
60 }

Referenced by CreateUniformMemberKey(), and impeller::BufferBindingsGLES::ReadUniformsBindings().

## ◆ OpenCacheFile()

static std::unique_ptr<fml::Mapping> impeller::OpenCacheFile | ( | const fml::UniqueFD & | base_directory,
|  | const std::string & | cache_file_name,
|  | const CapabilitiesVK & | caps
| ) |  |
| static

Definition at line 34 of file pipeline_cache_vk.cc.

37 {
38 if (!base_directory.is_valid()) {
39 return nullptr;
40 }
41 std::unique_ptr<fml::Mapping> mapping =
42 fml::FileMapping::CreateReadOnly(base_directory, cache_file_name);
43 if (!mapping) {
44 return nullptr;
45 }
46 if (!VerifyExistingCache(*mapping, caps)) {
47 return nullptr;
48 }
49 mapping = RemoveMetadataFromCache(std::move(mapping));
50 if (!mapping) {
51 return nullptr;
52 }
53 return mapping;
54 }

References RemoveMetadataFromCache(), and VerifyExistingCache().

Referenced by impeller::PipelineCacheVK::PipelineCacheVK().

## ◆ operator*() [1/7]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator* | ( | const TPoint< F > & | p1,
|  | const TPoint< I > & | p2
| ) |  |
| constexpr

Definition at line 255 of file point.h.

255 {
256 return {p1.x * static_cast<F>(p2.x), p1.y * static_cast<F>(p2.y)};
257 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator*() [2/7]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator* | ( | const TPoint< I > & | p1,
|  | const TPoint< F > & | p2
| ) |  |
| constexpr

Definition at line 260 of file point.h.

260 {
261 return p2 * p1;
262 }

## ◆ operator*() [3/7]

template<class T , class U >

constexpr TPoint<T> impeller::operator* | ( | const TSize< U > & | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 299 of file point.h.

299 {
300 return p * s;
301 }

## ◆ operator*() [4/7]

template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>

constexpr Color impeller::operator* | ( | T | value,
|  | const Color & | c
| ) |  |
| inline constexpr

Definition at line 901 of file color.h.

901 {
902 return c * static_cast<Scalar>(value);
903 }

## ◆ operator*() [5/7]

template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr TPoint<T> impeller::operator* | ( | U | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 277 of file point.h.

277 {
278 return p * s;
279 }

## ◆ operator*() [6/7]

template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr TSize<T> impeller::operator* | ( | U | s,
|  | const TSize< T > & | p
| ) |  |
| constexpr

Definition at line 128 of file size.h.

128 {
129 return p * s;
130 }

## ◆ operator*() [7/7]

template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr Vector3 impeller::operator* | ( | U | s,
|  | const Vector3 & | p
| ) |  |
| constexpr

Definition at line 209 of file vector.h.

209 {
210 return p * s;
211 }

## ◆ operator+() [1/5]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator+ | ( | const TPoint< F > & | p1,
|  | const TPoint< I > & | p2
| ) |  |
| constexpr

Definition at line 235 of file point.h.

235 {
236 return {p1.x + static_cast<F>(p2.x), p1.y + static_cast<F>(p2.y)};
237 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator+() [2/5]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator+ | ( | const TPoint< I > & | p1,
|  | const TPoint< F > & | p2
| ) |  |
| constexpr

Definition at line 240 of file point.h.

240 {
241 return p2 + p1;
242 }

## ◆ operator+() [3/5]

template<class T , class U >

constexpr TPoint<T> impeller::operator+ | ( | const TSize< U > & | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 289 of file point.h.

289 {
290 return p + s;
291 }

## ◆ operator+() [4/5]

template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>

constexpr Color impeller::operator+ | ( | T | value,
|  | const Color & | c
| ) |  |
| inline constexpr

Definition at line 890 of file color.h.

890 {
891 return c + static_cast<Scalar>(value);
892 }

## ◆ operator+() [5/5]

template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr Vector3 impeller::operator+ | ( | U | s,
|  | const Vector3 & | p
| ) |  |
| constexpr

Definition at line 214 of file vector.h.

214 {
215 return p + s;
216 }

## ◆ operator-() [1/5]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator- | ( | const TPoint< F > & | p1,
|  | const TPoint< I > & | p2
| ) |  |
| constexpr

Definition at line 245 of file point.h.

245 {
246 return {p1.x - static_cast<F>(p2.x), p1.y - static_cast<F>(p2.y)};
247 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator-() [2/5]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator- | ( | const TPoint< I > & | p1,
|  | const TPoint< F > & | p2
| ) |  |
| constexpr

Definition at line 250 of file point.h.

250 {
251 return {static_cast<F>(p1.x) - p2.x, static_cast<F>(p1.y) - p2.y};
252 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator-() [3/5]

template<class T , class U >

constexpr TPoint<T> impeller::operator- | ( | const TSize< U > & | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 294 of file point.h.

294 {
295 return {static_cast<T>(s.width) - p.x, static_cast<T>(s.height) - p.y};
296 }

References impeller::TSize< T >::height, impeller::TSize< T >::width, impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator-() [4/5]

template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>

constexpr Color impeller::operator- | ( | T | value,
|  | const Color & | c
| ) |  |
| inline constexpr

Definition at line 895 of file color.h.

895 {
896 auto v = static_cast<Scalar>(value);
897 return {v - c.red, v - c.green, v - c.blue, v - c.alpha};
898 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

## ◆ operator-() [5/5]

template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr Vector3 impeller::operator- | ( | U | s,
|  | const Vector3 & | p
| ) |  |
| constexpr

Definition at line 219 of file vector.h.

219 {
220 return -p + s;
221 }

## ◆ operator/() [1/7]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator/ | ( | const TPoint< F > & | p1,
|  | const TPoint< I > & | p2
| ) |  |
| constexpr

Definition at line 265 of file point.h.

265 {
266 return {p1.x / static_cast<F>(p2.x), p1.y / static_cast<F>(p2.y)};
267 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator/() [2/7]

template<class F , class I , class = MixedOp<F, I>>

constexpr TPoint<F> impeller::operator/ | ( | const TPoint< I > & | p1,
|  | const TPoint< F > & | p2
| ) |  |
| constexpr

Definition at line 270 of file point.h.

270 {
271 return {static_cast<F>(p1.x) / p2.x, static_cast<F>(p1.y) / p2.y};
272 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator/() [3/7]

template<class T , class U >

constexpr TPoint<T> impeller::operator/ | ( | const TSize< U > & | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 304 of file point.h.

304 {
305 return {static_cast<T>(s.width) / p.x, static_cast<T>(s.height) / p.y};
306 }

References impeller::TSize< T >::height, impeller::TSize< T >::width, impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator/() [4/7]

template<class T , class = std::enable_if_t<std::is_arithmetic_v<T>>>

constexpr Color impeller::operator/ | ( | T | value,
|  | const Color & | c
| ) |  |
| inline constexpr

Definition at line 906 of file color.h.

906 {
907 auto v = static_cast<Scalar>(value);
908 return {v / c.red, v / c.green, v / c.blue, v / c.alpha};
909 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

## ◆ operator/() [5/7]

template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr TPoint<T> impeller::operator/ | ( | U | s,
|  | const TPoint< T > & | p
| ) |  |
| constexpr

Definition at line 282 of file point.h.

282 {
283 return {static_cast<T>(s) / p.x, static_cast<T>(s) / p.y};
284 }

References impeller::TPoint< T >::x, and impeller::TPoint< T >::y.

## ◆ operator/() [6/7]

template<class T , class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr TSize<T> impeller::operator/ | ( | U | s,
|  | const TSize< T > & | p
| ) |  |
| constexpr

Definition at line 133 of file size.h.

133 {
134 return {static_cast<T>(s) / p.x, static_cast<T>(s) / p.y};
135 }

## ◆ operator/() [7/7]

template<class U , class = std::enable_if_t<std::is_arithmetic_v<U>>>

constexpr Vector3 impeller::operator/ | ( | U | s,
|  | const Vector3 & | p
| ) |  |
| constexpr

Definition at line 224 of file vector.h.

224 {
225 return {
226 static_cast<Scalar>(s) / p.x,
227 static_cast<Scalar>(s) / p.y,
228 static_cast<Scalar>(s) / p.z,
229 };
230 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

## ◆ OptimumAtlasSizeForFontGlyphPairs() [1/2]

static ISize impeller::OptimumAtlasSizeForFontGlyphPairs | ( | const std::vector< FontGlyphPair > & | pairs,
|  | std::vector< Rect > & | glyph_positions,
|  | const std::shared_ptr< GlyphAtlasContext > & | atlas_context,
|  | GlyphAtlas::Type | type,
|  | const ISize & | max_texture_size
| ) |  |
| static

Definition at line 116 of file typographer_context_skia.cc.

121 {
122 static constexpr auto kMinAtlasSize = 8u;
123 static constexpr auto kMinAlphaBitmapSize = 1024u;
124
125 TRACE_EVENT0("impeller", __FUNCTION__);
126
127 ISize current_size = type == GlyphAtlas::Type::kAlphaBitmap
128 ? ISize(kMinAlphaBitmapSize, kMinAlphaBitmapSize)
129 : ISize(kMinAtlasSize, kMinAtlasSize);
130 size_t total_pairs = pairs.size() + 1;
131 do {
132 auto rect_packer = std::shared_ptr<RectanglePacker>(
133 RectanglePacker::Factory(current_size.width, current_size.height));
134
135 auto remaining_pairs = PairsFitInAtlasOfSize(pairs, current_size,
136 glyph_positions, rect_packer);
137 if (remaining_pairs == 0) {
138 atlas_context->UpdateRectPacker(rect_packer);
139 return current_size;
140 } else if (remaining_pairs < std::ceil(total_pairs / 2)) {
141 current_size = ISize::MakeWH(
142 std::max(current_size.width, current_size.height),
143 Allocation::NextPowerOfTwoSize(
144 std::min(current_size.width, current_size.height) + 1));
145 } else {
146 current_size = ISize::MakeWH(
147 Allocation::NextPowerOfTwoSize(current_size.width + 1),
148 Allocation::NextPowerOfTwoSize(current_size.height + 1));
149 }
150 } while (current_size.width <= max_texture_size.width &&
151 current_size.height <= max_texture_size.height);
152 return ISize{0, 0};
153 }

References impeller::RectanglePacker::Factory(), impeller::TSize< T >::height, impeller::GlyphAtlas::kAlphaBitmap, impeller::TSize< int64_t >::MakeWH(), impeller::Allocation::NextPowerOfTwoSize(), PairsFitInAtlasOfSize(), and impeller::TSize< T >::width.

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ OptimumAtlasSizeForFontGlyphPairs() [2/2]

static ISize impeller::OptimumAtlasSizeForFontGlyphPairs | ( | const std::vector< FontGlyphPair > & | pairs,
|  | std::vector< Rect > & | glyph_positions,
|  | const std::shared_ptr< GlyphAtlasContext > & | atlas_context,
|  | GlyphAtlas::Type | type,
|  | const ISize & | max_texture_size
| ) |  |
| static

Definition at line 159 of file typographer_context_stb.cc.

164 {
165 static constexpr auto kMinAtlasSize = 8u;
166 static constexpr auto kMinAlphaBitmapSize = 1024u;
167
168 TRACE_EVENT0("impeller", __FUNCTION__);
169
170 ISize current_size = type == GlyphAtlas::Type::kAlphaBitmap
171 ? ISize(kMinAlphaBitmapSize, kMinAlphaBitmapSize)
172 : ISize(kMinAtlasSize, kMinAtlasSize);
173 size_t total_pairs = pairs.size() + 1;
174 do {
175 auto rect_packer = std::shared_ptr<RectanglePacker>(
176 RectanglePacker::Factory(current_size.width, current_size.height));
177
178 auto remaining_pairs = PairsFitInAtlasOfSize(pairs, current_size,
179 glyph_positions, rect_packer);
180 if (remaining_pairs == 0) {
181 atlas_context->UpdateRectPacker(rect_packer);
182 return current_size;
183 } else if (remaining_pairs < std::ceil(total_pairs / 2)) {
184 current_size = ISize::MakeWH(
185 std::max(current_size.width, current_size.height),
186 Allocation::NextPowerOfTwoSize(
187 std::min(current_size.width, current_size.height) + 1));
188 } else {
189 current_size = ISize::MakeWH(
190 Allocation::NextPowerOfTwoSize(current_size.width + 1),
191 Allocation::NextPowerOfTwoSize(current_size.height + 1));
192 }
193 } while (current_size.width <= max_texture_size.width &&
194 current_size.height <= max_texture_size.height);
195 return ISize{0, 0};
196 }

References impeller::RectanglePacker::Factory(), impeller::TSize< T >::height, impeller::GlyphAtlas::kAlphaBitmap, impeller::TSize< int64_t >::MakeWH(), impeller::Allocation::NextPowerOfTwoSize(), PairsFitInAtlasOfSize(), and impeller::TSize< T >::width.

## ◆ OptionsFromPass()

ContentContextOptions impeller::OptionsFromPass | ( | const RenderPass & | pass | ) |

Definition at line 20 of file contents.cc.

20 {
21 ContentContextOptions opts;
22 opts.sample_count = pass.GetSampleCount();
23 opts.color_attachment_pixel_format = pass.GetRenderTargetPixelFormat();
24 opts.has_stencil_attachment = pass.HasStencilAttachment();
25 return opts;
26 }

References impeller::ContentContextOptions::color_attachment_pixel_format, impeller::RenderPass::GetRenderTargetPixelFormat(), impeller::RenderPass::GetSampleCount(), impeller::ContentContextOptions::has_stencil_attachment, impeller::RenderPass::HasStencilAttachment(), and impeller::ContentContextOptions::sample_count.

Referenced by AdvancedBlend(), OptionsFromPassAndEntity(), PipelineBlend(), impeller::CheckerboardContents::Render(), impeller::ClipContents::Render(), impeller::AtlasContents::Render(), impeller::ClipRestoreContents::Render(), and impeller::testing::TEST_P().

## ◆ OptionsFromPassAndEntity()

ContentContextOptions impeller::OptionsFromPassAndEntity | ( | const RenderPass & | pass,
|  | const Entity & | entity
| ) |  |

Definition at line 28 of file contents.cc.

29 {
30 ContentContextOptions opts = OptionsFromPass(pass);
31 opts.blend_mode = entity.GetBlendMode();
32 return opts;
33 }

References impeller::ContentContextOptions::blend_mode, impeller::Entity::GetBlendMode(), and OptionsFromPass().

Referenced by impeller::RuntimeEffectContents::Render(), impeller::TiledTextureContents::Render(), impeller::SolidRRectBlurContents::Render(), impeller::SolidColorContents::Render(), impeller::TextContents::Render(), impeller::TextureContents::Render(), impeller::VerticesColorContents::Render(), impeller::VerticesUVContents::Render(), impeller::AtlasTextureContents::Render(), and impeller::AtlasColorContents::Render().

## ◆ PairsFitInAtlasOfSize() [1/2]

static size_t impeller::PairsFitInAtlasOfSize | ( | const std::vector< FontGlyphPair > & | pairs,
|  | const ISize & | atlas_size,
|  | std::vector< Rect > & | glyph_positions,
|  | const std::shared_ptr< RectanglePacker > & | rect_packer
| ) |  |
| static

Definition at line 43 of file typographer_context_skia.cc.

47 {
48 if (atlas_size.IsEmpty()) {
49 return false;
50 }
51
52 glyph_positions.clear();
53 glyph_positions.reserve(pairs.size());
54
55 size_t i = 0;
56 for (auto it = pairs.begin(); it != pairs.end(); ++i, ++it) {
57 const auto& pair = *it;
58
59 const auto glyph_size =
60 ISize::Ceil(pair.glyph.bounds.GetSize() * pair.scaled_font.scale);
61 IPoint16 location_in_atlas;
62 if (!rect_packer->addRect(glyph_size.width + kPadding, //
63 glyph_size.height + kPadding, //
64 &location_in_atlas //
65 )) {
66 return pairs.size() - i;
67 }
68 glyph_positions.emplace_back(Rect::MakeXYWH(location_in_atlas.x(), //
69 location_in_atlas.y(), //
70 glyph_size.width, //
71 glyph_size.height //
72 ));
73 }
74
75 return 0;
76 }

References impeller::TSize< int64_t >::Ceil(), impeller::TSize< T >::IsEmpty(), kPadding, impeller::TRect< Scalar >::MakeXYWH(), impeller::IPoint16::x(), and impeller::IPoint16::y().

Referenced by OptimumAtlasSizeForFontGlyphPairs().

## ◆ PairsFitInAtlasOfSize() [2/2]

static size_t impeller::PairsFitInAtlasOfSize | ( | const std::vector< FontGlyphPair > & | pairs,
|  | const ISize & | atlas_size,
|  | std::vector< Rect > & | glyph_positions,
|  | const std::shared_ptr< RectanglePacker > & | rect_packer
| ) |  |
| static

Definition at line 44 of file typographer_context_stb.cc.

48 {
49 if (atlas_size.IsEmpty()) {
50 return false;
51 }
52
53 glyph_positions.clear();
54 glyph_positions.reserve(pairs.size());
55
56 size_t i = 0;
57 for (auto it = pairs.begin(); it != pairs.end(); ++i, ++it) {
58 const auto& pair = *it;
59 const Font& font = pair.scaled_font.font;
60
61 // We downcast to the correct typeface type to access `stb` specific
62 // methods.
63 std::shared_ptr<TypefaceSTB> typeface_stb =
64 std::reinterpret_pointer_cast<TypefaceSTB>(font.GetTypeface());
65 // Conversion factor to scale font size in Points to pixels.
66 // Note this assumes typical DPI.
67 float text_size_pixels =
68 font.GetMetrics().point_size * TypefaceSTB::kPointsToPixels;
69
70 ISize glyph_size;
71 {
72 int x0 = 0, y0 = 0, x1 = 0, y1 = 0;
73 // NOTE: We increase the size of the glyph by one pixel in all dimensions
74 // to allow us to cut out padding later.
75 float scale = stbtt_ScaleForPixelHeight(typeface_stb->GetFontInfo(),
76 text_size_pixels);
77 stbtt_GetGlyphBitmapBox(typeface_stb->GetFontInfo(), pair.glyph.index,
78 scale, scale, &x0, &y0, &x1, &y1);
79
80 glyph_size = ISize(x1 - x0, y1 - y0);
81 }
82
83 IPoint16 location_in_atlas;
84 if (!rect_packer->addRect(glyph_size.width + kPadding, //
85 glyph_size.height + kPadding, //
86 &location_in_atlas //
87 )) {
88 return pairs.size() - i;
89 }
90 glyph_positions.emplace_back(Rect::MakeXYWH(location_in_atlas.x(), //
91 location_in_atlas.y(), //
92 glyph_size.width, //
93 glyph_size.height //
94 ));
95 }
96
97 return 0;
98 }

References impeller::Font::GetMetrics(), impeller::Font::GetTypeface(), impeller::TSize< T >::height, impeller::TSize< T >::IsEmpty(), kPadding, impeller::TypefaceSTB::kPointsToPixels, impeller::TRect< Scalar >::MakeXYWH(), impeller::Font::Metrics::point_size, impeller::TSize< T >::width, impeller::IPoint16::x(), and impeller::IPoint16::y().

## ◆ PhysicalDeviceSupportsRequiredFormats()

static bool impeller::PhysicalDeviceSupportsRequiredFormats | ( | const vk::PhysicalDevice & | device | ) |
| static

Definition at line 256 of file capabilities_vk.cc.

257 {
258 const auto has_color_format =
259 HasSuitableColorFormat(device, vk::Format::eB8G8R8A8Unorm);
260 const auto has_stencil_format =
261 HasSuitableDepthStencilFormat(device, vk::Format::eS8Uint) ||
262 HasSuitableDepthStencilFormat(device, vk::Format::eD32SfloatS8Uint) ||
263 HasSuitableDepthStencilFormat(device, vk::Format::eD24UnormS8Uint);
264 return has_color_format && has_stencil_format;
265 }

References HasSuitableColorFormat(), and HasSuitableDepthStencilFormat().

Referenced by impeller::CapabilitiesVK::GetEnabledDeviceFeatures().

## ◆ PickPhysicalDevice()

static std::optional<vk::PhysicalDevice> impeller::PickPhysicalDevice | ( | const CapabilitiesVK & | caps,
|  | const vk::Instance & | instance
| ) |  |
| static

Definition at line 47 of file context_vk.cc.

49 {
50 for (const auto& device : instance.enumeratePhysicalDevices().value) {
51 if (caps.GetEnabledDeviceFeatures(device).has_value()) {
52 return device;
53 }
54 }
55 return std::nullopt;
56 }

References impeller::CapabilitiesVK::GetEnabledDeviceFeatures().

## ◆ PickQueue()

static std::optional<QueueIndexVK> impeller::PickQueue | ( | const vk::PhysicalDevice & | device,
|  | vk::QueueFlagBits | flags
| ) |  |
| static

Definition at line 81 of file context_vk.cc.

82 {
83 // This can be modified to ensure that dedicated queues are returned for each
84 // queue type depending on support.
85 const auto families = device.getQueueFamilyProperties();
86 for (size_t i = 0u; i < families.size(); i++) {
87 if (!(families[i].queueFlags & flags)) {
88 continue;
89 }
90 return QueueIndexVK{.family = i, .index = 0};
91 }
92 return std::nullopt;
93 }

References impeller::QueueIndexVK::family.

## ◆ PipelineBlend()

static std::optional<Entity> impeller::PipelineBlend | ( | const FilterInput::Vector & | inputs,
|  | const ContentContext & | renderer,
|  | const Entity & | entity,
|  | const Rect & | coverage,
|  | BlendMode | blend_mode,
|  | std::optional< Color > | foreground_color,
|  | ColorFilterContents::AbsorbOpacity | absorb_opacity,
|  | std::optional< Scalar > | alpha
| ) |  |
| static

Definition at line 518 of file blend_filter_contents.cc.

526 {
527 using VS = BlendPipeline::VertexShader;
528 using FS = BlendPipeline::FragmentShader;
529
530 auto dst_snapshot =
531 inputs[0]->GetSnapshot("PipelineBlend(Dst)", renderer, entity);
532 if (!dst_snapshot.has_value()) {
533 return std::nullopt; // Nothing to render.
534 }
535
536 Rect subpass_coverage = coverage;
537 if (entity.GetContents()) {
538 auto coverage_hint = entity.GetContents()->GetCoverageHint();
539
540 if (coverage_hint.has_value()) {
541 auto maybe_subpass_coverage =
542 subpass_coverage.Intersection(*coverage_hint);
543 if (!maybe_subpass_coverage.has_value()) {
544 return std::nullopt; // Nothing to render.
545 }
546
547 subpass_coverage = *maybe_subpass_coverage;
548 }
549 }
550
551 ContentContext::SubpassCallback callback = [&](const ContentContext& renderer,
552 RenderPass& pass) {
553 auto& host_buffer = pass.GetTransientsBuffer();
554
555 Command cmd;
556 DEBUG_COMMAND_INFO(cmd, SPrintF("Pipeline Blend Filter (%s)",
557 BlendModeToString(blend_mode)));
558 auto options = OptionsFromPass(pass);
559 options.primitive_type = PrimitiveType::kTriangleStrip;
560
561 auto add_blend_command = [&](std::optional<Snapshot> input) {
562 if (!input.has_value()) {
563 return false;
564 }
565 auto input_coverage = input->GetCoverage();
566 if (!input_coverage.has_value()) {
567 return false;
568 }
569
570 auto sampler = renderer.GetContext()->GetSamplerLibrary()->GetSampler(
571 input->sampler_descriptor);
572 FS::BindTextureSamplerSrc(cmd, input->texture, sampler);
573
574 auto size = input->texture->GetSize();
575 VertexBufferBuilder<VS::PerVertexData> vtx_builder;
576 vtx_builder.AddVertices({
577 {Point(0, 0), Point(0, 0)},
578 {Point(size.width, 0), Point(1, 0)},
579 {Point(0, size.height), Point(0, 1)},
580 {Point(size.width, size.height), Point(1, 1)},
581 });
582 cmd.BindVertices(vtx_builder.CreateVertexBuffer(host_buffer));
583
584 VS::FrameInfo frame_info;
585 frame_info.mvp = pass.GetOrthographicTransform() *
586 Matrix::MakeTranslation(-subpass_coverage.GetOrigin()) *
587 input->transform;
588 frame_info.texture_sampler_y_coord_scale =
589 input->texture->GetYCoordScale();
590
591 FS::FragInfo frag_info;
592 frag_info.input_alpha =
593 absorb_opacity == ColorFilterContents::AbsorbOpacity::kYes
594 ? input->opacity
595 : 1.0;
596 FS::BindFragInfo(cmd, host_buffer.EmplaceUniform(frag_info));
597 VS::BindFrameInfo(cmd, host_buffer.EmplaceUniform(frame_info));
598
599 pass.AddCommand(std::move(cmd));
600 return true;
601 };
602
603 // Draw the first texture using kSource.
604 options.blend_mode = BlendMode::kSource;
605 cmd.pipeline = renderer.GetBlendPipeline(options);
606 if (!add_blend_command(dst_snapshot)) {
607 return true;
608 }
609
610 // Write subsequent textures using the selected blend mode.
611
612 if (inputs.size() >= 2) {
613 options.blend_mode = blend_mode;
614 cmd.pipeline = renderer.GetBlendPipeline(options);
615
616 for (auto texture_i = inputs.begin() + 1; texture_i < inputs.end();
617 texture_i++) {
618 auto src_input = texture_i->get()->GetSnapshot("PipelineBlend(Src)",
619 renderer, entity);
620 if (!add_blend_command(src_input)) {
621 return true;
622 }
623 }
624 }
625
626 // If a foreground color is set, blend it in.
627
628 if (foreground_color.has_value()) {
629 auto contents = std::make_shared<SolidColorContents>();
630 contents->SetGeometry(
631 Geometry::MakeRect(Rect::MakeSize(pass.GetRenderTargetSize())));
632 contents->SetColor(foreground_color.value());
633
634 Entity foreground_entity;
635 foreground_entity.SetBlendMode(blend_mode);
636 foreground_entity.SetContents(contents);
637 if (!foreground_entity.Render(renderer, pass)) {
638 return false;
639 }
640 }
641
642 return true;
643 };
644
645 fml::StatusOr<RenderTarget> render_target = renderer.MakeSubpass(
646 "Pipeline Blend Filter", ISize(subpass_coverage.GetSize()), callback);
647
648 if (!render_target.ok()) {
649 return std::nullopt;
650 }
651
652 return Entity::FromSnapshot(
653 Snapshot{
654 .texture = render_target.value().GetRenderTargetTexture(),
655 .transform = Matrix::MakeTranslation(subpass_coverage.GetOrigin()),
656 // Since we absorbed the transform of the inputs and used the
657 // respective snapshot sampling modes when blending, pass on
658 // the default NN clamp sampler.
659 .sampler_descriptor = {},
660 .opacity = (absorb_opacity == ColorFilterContents::AbsorbOpacity::kYes
661 ? 1.0f
662 : dst_snapshot->opacity) *
663 alpha.value_or(1.0)},
664 entity.GetBlendMode(), entity.GetClipDepth());
665 }

References impeller::VertexBufferBuilder< VertexType_, IndexType_ >::AddVertices(), impeller::Command::BindVertices(), BlendModeToString(), impeller::VertexBufferBuilder< VertexType_, IndexType_ >::CreateVertexBuffer(), DEBUG_COMMAND_INFO, impeller::Entity::FromSnapshot(), impeller::Entity::GetBlendMode(), impeller::ContentContext::GetBlendPipeline(), impeller::Entity::GetClipDepth(), impeller::Entity::GetContents(), impeller::ContentContext::GetContext(), impeller::TRect< T >::GetOrigin(), impeller::TRect< T >::GetSize(), impeller::TRect< T >::Intersection(), kSource, kTriangleStrip, impeller::ColorFilterContents::kYes, impeller::Geometry::MakeRect(), impeller::TRect< Scalar >::MakeSize(), impeller::ContentContext::MakeSubpass(), impeller::Matrix::MakeTranslation(), OptionsFromPass(), impeller::Command::pipeline, impeller::Entity::Render(), impeller::Entity::SetBlendMode(), impeller::Entity::SetContents(), SPrintF(), and impeller::Snapshot::texture.

## ◆ PixelFormatIsDepthStencil()

constexpr bool impeller::PixelFormatIsDepthStencil | ( | PixelFormat | format | ) |
| constexpr

Definition at line 373 of file formats_vk.h.

373 {
374 switch (format) {
375 case PixelFormat::kUnknown:
376 case PixelFormat::kA8UNormInt:
377 case PixelFormat::kR8UNormInt:
378 case PixelFormat::kR8G8UNormInt:
379 case PixelFormat::kR8G8B8A8UNormInt:
380 case PixelFormat::kR8G8B8A8UNormIntSRGB:
381 case PixelFormat::kB8G8R8A8UNormInt:
382 case PixelFormat::kB8G8R8A8UNormIntSRGB:
383 case PixelFormat::kR32G32B32A32Float:
384 case PixelFormat::kR16G16B16A16Float:
385 case PixelFormat::kB10G10R10XR:
386 case PixelFormat::kB10G10R10XRSRGB:
387 case PixelFormat::kB10G10R10A10XR:
388 return false;
389 case PixelFormat::kS8UInt:
390 case PixelFormat::kD24UnormS8Uint:
391 case PixelFormat::kD32FloatS8UInt:
392 return true;
393 }
394 return false;
395 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by ToVKImageUsageFlags().

## ◆ PixelFormatToString()

constexpr const char* impeller::PixelFormatToString | ( | PixelFormat | format | ) |
| constexpr

Definition at line 135 of file formats.h.

135 {
136 switch (format) {
137 case PixelFormat::kUnknown:
138 return "Unknown";
139 case PixelFormat::kA8UNormInt:
140 return "A8UNormInt";
141 case PixelFormat::kR8UNormInt:
142 return "R8UNormInt";
143 case PixelFormat::kR8G8UNormInt:
144 return "R8G8UNormInt";
145 case PixelFormat::kR8G8B8A8UNormInt:
146 return "R8G8B8A8UNormInt";
147 case PixelFormat::kR8G8B8A8UNormIntSRGB:
148 return "R8G8B8A8UNormIntSRGB";
149 case PixelFormat::kB8G8R8A8UNormInt:
150 return "B8G8R8A8UNormInt";
151 case PixelFormat::kB8G8R8A8UNormIntSRGB:
152 return "B8G8R8A8UNormIntSRGB";
153 case PixelFormat::kR32G32B32A32Float:
154 return "R32G32B32A32Float";
155 case PixelFormat::kR16G16B16A16Float:
156 return "R16G16B16A16Float";
157 case PixelFormat::kB10G10R10XR:
158 return "B10G10R10XR";
159 case PixelFormat::kB10G10R10XRSRGB:
160 return "B10G10R10XRSRGB";
161 case PixelFormat::kB10G10R10A10XR:
162 return "B10G10R10A10XR";
163 case PixelFormat::kS8UInt:
164 return "S8UInt";
165 case PixelFormat::kD24UnormS8Uint:
166 return "D24UnormS8Uint";
167 case PixelFormat::kD32FloatS8UInt:
168 return "D32FloatS8UInt";
169 }
170 FML_UNREACHABLE();
171 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by impeller::BlitPass::AddCopy(), and TextureDescriptorToString().

## ◆ PlaygroundBackendToRuntimeStageBackend()

constexpr RuntimeStageBackend impeller::PlaygroundBackendToRuntimeStageBackend | ( | PlaygroundBackend | backend | ) |
| inline constexpr

Definition at line 35 of file playground.h.

36 {
37 switch (backend) {
38 case PlaygroundBackend::kMetal:
39 return RuntimeStageBackend::kMetal;
40 case PlaygroundBackend::kOpenGLES:
41 return RuntimeStageBackend::kOpenGLES;
42 case PlaygroundBackend::kVulkan:
43 return RuntimeStageBackend::kVulkan;
44 }
45 FML_UNREACHABLE();
46 }

References kMetal, kOpenGLES, and kVulkan.

Referenced by impeller::testing::TEST_P().

## ◆ PlaygroundBackendToString()

std::string impeller::PlaygroundBackendToString | ( | PlaygroundBackend | backend | ) |

Definition at line 39 of file playground.cc.

39 {
40 switch (backend) {
41 case PlaygroundBackend::kMetal:
42 return "Metal";
43 case PlaygroundBackend::kOpenGLES:
44 return "OpenGLES";
45 case PlaygroundBackend::kVulkan:
46 return "Vulkan";
47 }
48 FML_UNREACHABLE();
49 }

References kMetal, kOpenGLES, and kVulkan.

Referenced by impeller::PlaygroundImpl::Create().

## ◆ PlaygroundKeyCallback()

static void impeller::PlaygroundKeyCallback | ( | GLFWwindow * | window,
|  | int | key,
|  | int | scancode,
|  | int | action,
|  | int | mods
| ) |  |
| static

Definition at line 156 of file playground.cc.

160 {
161 if ((key == GLFW_KEY_ESCAPE) && action == GLFW_RELEASE) {
162 if (mods & (GLFW_MOD_CONTROL | GLFW_MOD_SUPER | GLFW_MOD_SHIFT)) {
163 gShouldOpenNewPlaygrounds = false;
164 }
165 ::glfwSetWindowShouldClose(window, GLFW_TRUE);
166 }
167 }

References gShouldOpenNewPlaygrounds.

Referenced by impeller::Playground::OpenPlaygroundHere().

## ◆ QuadraticSolve()

static Scalar impeller::QuadraticSolve | ( | Scalar | t,
|  | Scalar | p0,
|  | Scalar | p1,
|  | Scalar | p2
| ) |  |
| inline static

Definition at line 19 of file path_component.cc.

19 {
20 return (1 - t) * (1 - t) * p0 + //
21 2 * (1 - t) * t * p1 + //
22 t * t * p2;
23 }

Referenced by impeller::QuadraticPathComponent::Solve().

## ◆ QuadraticSolveDerivative()

static Scalar impeller::QuadraticSolveDerivative | ( | Scalar | t,
|  | Scalar | p0,
|  | Scalar | p1,
|  | Scalar | p2
| ) |  |
| inline static

Definition at line 25 of file path_component.cc.

28 {
29 return 2 * (1 - t) * (p1 - p0) + //
30 2 * t * (p2 - p1);
31 }

Referenced by impeller::QuadraticPathComponent::SolveDerivative().

## ◆ ReadStageInputFormat()

static MTLVertexFormat impeller::ReadStageInputFormat | ( | const ShaderStageIOSlot & | input | ) |
| static

Definition at line 16 of file vertex_descriptor_mtl.mm.

16 {
17 if (input.columns != 1) {
18 // All matrix types are unsupported as vertex inputs.
19 return MTLVertexFormatInvalid;
20 }
21
22 switch (input.type) {
23 case ShaderType::kFloat: {
24 if (input.bit_width == 8 * sizeof(float)) {
25 switch (input.vec_size) {
26 case 1:
27 return MTLVertexFormatFloat;
28 case 2:
29 return MTLVertexFormatFloat2;
30 case 3:
31 return MTLVertexFormatFloat3;
32 case 4:
33 return MTLVertexFormatFloat4;
34 }
35 }
36 return MTLVertexFormatInvalid;
37 }
38 case ShaderType::kHalfFloat: {
39 if (input.bit_width == 8 * sizeof(float) / 2) {
40 switch (input.vec_size) {
41 case 1:
42 return MTLVertexFormatHalf;
43 case 2:
44 return MTLVertexFormatHalf2;
45 case 3:
46 return MTLVertexFormatHalf3;
47 case 4:
48 return MTLVertexFormatHalf4;
49 }
50 }
51 return MTLVertexFormatInvalid;
52 }
53 case ShaderType::kDouble: {
54 // Unsupported.
55 return MTLVertexFormatInvalid;
56 }
57 case ShaderType::kBoolean: {
58 if (input.bit_width == 8 * sizeof(bool) && input.vec_size == 1) {
59 return MTLVertexFormatChar;
60 }
61 return MTLVertexFormatInvalid;
62 }
63 case ShaderType::kSignedByte: {
64 if (input.bit_width == 8 * sizeof(char)) {
65 switch (input.vec_size) {
66 case 1:
67 return MTLVertexFormatChar;
68 case 2:
69 return MTLVertexFormatChar2;
70 case 3:
71 return MTLVertexFormatChar3;
72 case 4:
73 return MTLVertexFormatChar4;
74 }
75 }
76 return MTLVertexFormatInvalid;
77 }
78 case ShaderType::kUnsignedByte: {
79 if (input.bit_width == 8 * sizeof(char)) {
80 switch (input.vec_size) {
81 case 1:
82 return MTLVertexFormatUChar;
83 case 2:
84 return MTLVertexFormatUChar2;
85 case 3:
86 return MTLVertexFormatUChar3;
87 case 4:
88 return MTLVertexFormatUChar4;
89 }
90 }
91 return MTLVertexFormatInvalid;
92 }
93 case ShaderType::kSignedShort: {
94 if (input.bit_width == 8 * sizeof(short)) {
95 switch (input.vec_size) {
96 case 1:
97 return MTLVertexFormatShort;
98 case 2:
99 return MTLVertexFormatShort2;
100 case 3:
101 return MTLVertexFormatShort3;
102 case 4:
103 return MTLVertexFormatShort4;
104 }
105 }
106 return MTLVertexFormatInvalid;
107 }
108 case ShaderType::kUnsignedShort: {
109 if (input.bit_width == 8 * sizeof(ushort)) {
110 switch (input.vec_size) {
111 case 1:
112 return MTLVertexFormatUShort;
113 case 2:
114 return MTLVertexFormatUShort2;
115 case 3:
116 return MTLVertexFormatUShort3;
117 case 4:
118 return MTLVertexFormatUShort4;
119 }
120 }
121 return MTLVertexFormatInvalid;
122 }
123 case ShaderType::kSignedInt: {
124 if (input.bit_width == 8 * sizeof(int32_t)) {
125 switch (input.vec_size) {
126 case 1:
127 return MTLVertexFormatInt;
128 case 2:
129 return MTLVertexFormatInt2;
130 case 3:
131 return MTLVertexFormatInt3;
132 case 4:
133 return MTLVertexFormatInt4;
134 }
135 }
136 return MTLVertexFormatInvalid;
137 }
138 case ShaderType::kUnsignedInt: {
139 if (input.bit_width == 8 * sizeof(uint32_t)) {
140 switch (input.vec_size) {
141 case 1:
142 return MTLVertexFormatUInt;
143 case 2:
144 return MTLVertexFormatUInt2;
145 case 3:
146 return MTLVertexFormatUInt3;
147 case 4:
148 return MTLVertexFormatUInt4;
149 }
150 }
151 return MTLVertexFormatInvalid;
152 }
153 case ShaderType::kSignedInt64: {
154 // Unsupported.
155 return MTLVertexFormatInvalid;
156 }
157 case ShaderType::kUnsignedInt64: {
158 // Unsupported.
159 return MTLVertexFormatInvalid;
160 }
161 case ShaderType::kAtomicCounter:
162 case ShaderType::kStruct:
163 case ShaderType::kImage:
164 case ShaderType::kSampledImage:
165 case ShaderType::kUnknown:
166 case ShaderType::kVoid:
167 case ShaderType::kSampler:
168 return MTLVertexFormatInvalid;
169 }
170 }

References impeller::ShaderStageIOSlot::bit_width, impeller::ShaderStageIOSlot::columns, kAtomicCounter, kBoolean, kDouble, kFloat, kHalfFloat, kImage, kSampledImage, kSampler, kSignedByte, kSignedInt, kSignedInt64, kSignedShort, kStruct, kUnknown, kUnsignedByte, kUnsignedInt, kUnsignedInt64, kUnsignedShort, kVoid, impeller::ShaderStageIOSlot::type, and impeller::ShaderStageIOSlot::vec_size.

Referenced by impeller::VertexDescriptorMTL::SetStageInputsAndLayout().

## ◆ RealizedFuture()

template<class T >

std::future<T> impeller::RealizedFuture | ( | T | t | ) |

Definition at line 13 of file promise.h.

13 {
14 std::promise<T> promise;
15 auto future = promise.get_future();
16 promise.set_value(std::move(t));
17 return future;
18 }

## ◆ RegistrationIfReady()

static const ArchiveClassRegistration* impeller::RegistrationIfReady | ( | const ArchiveClassRegistration * | registration | ) |
| inline static

Definition at line 97 of file archive_database.cc.

98 {
99 if (registration == nullptr) {
100 return nullptr;
101 }
102 return registration->IsValid() ? registration : nullptr;
103 }

References impeller::ArchiveClassRegistration::IsValid().

Referenced by impeller::ArchiveDatabase::GetRegistrationForDefinition().

## ◆ RemoveMetadataFromCache()

static std::unique_ptr<fml::Mapping> impeller::RemoveMetadataFromCache | ( | std::unique_ptr< fml::Mapping > | data | ) |
| static

Definition at line 29 of file pipeline_cache_vk.cc.

30 {
31 return data;
32 }

Referenced by OpenCacheFile().

## ◆ ReportPipelineCreationFeedback()

static void impeller::ReportPipelineCreationFeedback | ( | const PipelineDescriptor & | desc,
|  | const vk::PipelineCreationFeedbackCreateInfoEXT & | feedback
| ) |  |
| static

Definition at line 247 of file pipeline_library_vk.cc.

249 {
250 constexpr bool kReportPipelineCreationFeedbackToLogs = false;
251 constexpr bool kReportPipelineCreationFeedbackToTraces = true;
252 if (kReportPipelineCreationFeedbackToLogs) {
253 ReportPipelineCreationFeedbackToLog(desc, feedback);
254 }
255 if (kReportPipelineCreationFeedbackToTraces) {
256 ReportPipelineCreationFeedbackToTrace(desc, feedback);
257 }
258 }

References ReportPipelineCreationFeedbackToLog(), and ReportPipelineCreationFeedbackToTrace().

## ◆ ReportPipelineCreationFeedbackToLog() [1/2]

static void impeller::ReportPipelineCreationFeedbackToLog | ( | const PipelineDescriptor & | desc,
|  | const vk::PipelineCreationFeedbackCreateInfoEXT & | feedback
| ) |  |
| static

Definition at line 199 of file pipeline_library_vk.cc.

201 {
202 std::stringstream stream;
203 stream << std::fixed << std::showpoint << std::setprecision(2);
204 stream << std::endl << ">>>>>>" << std::endl;
205 stream << "Pipeline '" << desc.GetLabel() << "' ";
206 ReportPipelineCreationFeedbackToLog(stream,
207 *feedback.pPipelineCreationFeedback);
208 if (feedback.pipelineStageCreationFeedbackCount != 0) {
209 stream << std::endl;
210 }
211 for (size_t i = 0, count = feedback.pipelineStageCreationFeedbackCount;
212 i < count; i++) {
213 stream << "\tStage " << i + 1 << ": ";
214 ReportPipelineCreationFeedbackToLog(
215 stream, feedback.pPipelineStageCreationFeedbacks[i]);
216 if (i != count - 1) {
217 stream << std::endl;
218 }
219 }
220 stream << std::endl << "<<<<<<" << std::endl;
221 FML_LOG(ERROR) << stream.str();
222 }

References impeller::PipelineDescriptor::GetLabel(), and ReportPipelineCreationFeedbackToLog().

## ◆ ReportPipelineCreationFeedbackToLog() [2/2]

static void impeller::ReportPipelineCreationFeedbackToLog | ( | std::stringstream & | stream,
|  | const vk::PipelineCreationFeedbackEXT & | feedback
| ) |  |
| static

Definition at line 182 of file pipeline_library_vk.cc.

184 {
185 const auto pipeline_cache_hit =
186 feedback.flags &
187 vk::PipelineCreationFeedbackFlagBits::eApplicationPipelineCacheHit;
188 const auto base_pipeline_accl =
189 feedback.flags &
190 vk::PipelineCreationFeedbackFlagBits::eBasePipelineAcceleration;
191 auto duration = std::chrono::duration_cast<MillisecondsF>(
192 std::chrono::nanoseconds{feedback.duration});
193 stream << "Time: " << duration.count() << "ms"
194 << " Cache Hit: " << static_cast<bool>(pipeline_cache_hit)
195 << " Base Accel: " << static_cast<bool>(base_pipeline_accl)
196 << " Thread: " << std::this_thread::get_id();
197 }

Referenced by ReportPipelineCreationFeedback(), and ReportPipelineCreationFeedbackToLog().

## ◆ ReportPipelineCreationFeedbackToTrace()

static void impeller::ReportPipelineCreationFeedbackToTrace | ( | const PipelineDescriptor & | desc,
|  | const vk::PipelineCreationFeedbackCreateInfoEXT & | feedback
| ) |  |
| static

Definition at line 224 of file pipeline_library_vk.cc.

226 {
227 static int64_t gPipelineCacheHits = 0;
228 static int64_t gPipelineCacheMisses = 0;
229 static int64_t gPipelines = 0;
230 if (feedback.pPipelineCreationFeedback->flags &
231 vk::PipelineCreationFeedbackFlagBits::eApplicationPipelineCacheHit) {
232 gPipelineCacheHits++;
233 } else {
234 gPipelineCacheMisses++;
235 }
236 gPipelines++;
237 static constexpr int64_t kImpellerPipelineTraceID = 1988;
238 FML_TRACE_COUNTER("impeller", //
239 "PipelineCache", // series name
240 kImpellerPipelineTraceID, // series ID
241 "PipelineCacheHits", gPipelineCacheHits, //
242 "PipelineCacheMisses", gPipelineCacheMisses, //
243 "TotalPipelines", gPipelines //
244 );
245 }

Referenced by ReportPipelineCreationFeedback().

## ◆ ResourceIsLive()

static bool impeller::ResourceIsLive | ( | const ProcTableGLES & | gl,
|  | DebugResourceType | type,
|  | GLint | name
| ) |  |
| static

Definition at line 319 of file proc_table_gles.cc.

321 {
322 switch (type) {
323 case DebugResourceType::kTexture:
324 return gl.IsTexture(name);
325 case DebugResourceType::kBuffer:
326 return gl.IsBuffer(name);
327 case DebugResourceType::kProgram:
328 return gl.IsProgram(name);
329 case DebugResourceType::kShader:
330 return gl.IsShader(name);
331 case DebugResourceType::kRenderBuffer:
332 return gl.IsRenderbuffer(name);
333 case DebugResourceType::kFrameBuffer:
334 return gl.IsFramebuffer(name);
335 }
336 FML_UNREACHABLE();
337 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kShader, and kTexture.

Referenced by impeller::ProcTableGLES::SetDebugLabel().

## ◆ SafeMTLPixelFormatBGR10_XR()

MTLPixelFormat impeller::SafeMTLPixelFormatBGR10_XR | ( |  | ) |

Safe accessor for MTLPixelFormatBGR10_XR. Returns PixelFormat::kUnknown if MTLPixelFormatBGR10_XR isn't supported.

Definition at line 130 of file formats_mtl.mm.

130 {
131 if (@available(iOS 10, macOS 11.0, *)) {
132 return MTLPixelFormatBGR10_XR;
133 } else {
134 return MTLPixelFormatInvalid;
135 }
136 }

Referenced by ToMTLPixelFormat().

## ◆ SafeMTLPixelFormatBGR10_XR_sRGB()

MTLPixelFormat impeller::SafeMTLPixelFormatBGR10_XR_sRGB | ( |  | ) |

Safe accessor for MTLPixelFormatBGR10_XR_sRGB. Returns PixelFormat::kUnknown if MTLPixelFormatBGR10_XR_sRGB isn't supported.

Definition at line 122 of file formats_mtl.mm.

122 {
123 if (@available(iOS 11, macOS 11.0, *)) {
124 return MTLPixelFormatBGR10_XR_sRGB;
125 } else {
126 return MTLPixelFormatInvalid;
127 }
128 }

Referenced by ToMTLPixelFormat().

## ◆ SafeMTLPixelFormatBGRA10_XR()

MTLPixelFormat impeller::SafeMTLPixelFormatBGRA10_XR | ( |  | ) |

Safe accessor for MTLPixelFormatBGRA10_XR. Returns PixelFormat::kUnknown if MTLPixelFormatBGR10_XR isn't supported.

Definition at line 138 of file formats_mtl.mm.

138 {
139 if (@available(iOS 10, macOS 11.0, *)) {
140 return MTLPixelFormatBGRA10_XR;
141 } else {
142 return MTLPixelFormatInvalid;
143 }
144 }

Referenced by ToMTLPixelFormat().

## ◆ SafeMTLPixelFormatDepth24Unorm_Stencil8()

MTLPixelFormat impeller::SafeMTLPixelFormatDepth24Unorm_Stencil8 | ( |  | ) |

Safe accessor for MTLPixelFormatDepth24Unorm_Stencil8. Returns PixelFormat::kUnknown if MTLPixelFormatDepth24Unorm_Stencil8 isn't supported.

Definition at line 113 of file formats_mtl.mm.

113 {
114 #if !FML_OS_IOS
115 if (@available(macOS 10.11, *)) {
116 return MTLPixelFormatDepth24Unorm_Stencil8;
117 }
118 #endif // FML_OS_IOS
119 return MTLPixelFormatInvalid;
120 }

Referenced by ToMTLPixelFormat().

## ◆ Saturation()

static constexpr Scalar impeller::Saturation | ( | Vector3 | color | ) |
| inline static constexpr

Definition at line 166 of file color.cc.

166 {
167 return std::max(std::max(color.x, color.y), color.z) -
168 std::min(std::min(color.x, color.y), color.z);
169 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by impeller::Color::Blend(), and impeller::BlendFilterContents::SetBlendMode().

## ◆ ScalarNearlyEqual()

constexpr bool impeller::ScalarNearlyEqual | ( | Scalar | x,
|  | Scalar | y,
|  | Scalar | tolerance = `kEhCloseEnough`
| ) |  |
| inline constexpr

Definition at line 30 of file scalar.h.

32 {
33 return ScalarNearlyZero(x - y, tolerance);
34 }

References ScalarNearlyZero().

Referenced by CreateGradientBuffer(), impeller::Color::operator==(), impeller::testing::TEST(), impeller::testing::TEST_P(), and impeller::Color::Unpremultiply().

## ◆ ScalarNearlyZero()

constexpr bool impeller::ScalarNearlyZero | ( | Scalar | x,
|  | Scalar | tolerance = `kEhCloseEnough`
| ) |  |
| inline constexpr

Definition at line 25 of file scalar.h.

26 {
27 return Absolute(x) <= tolerance;
28 }

References Absolute().

Referenced by impeller::Matrix::IsAligned(), and ScalarNearlyEqual().

## ◆ ScalarToHalf()

constexpr InternalHalf impeller::ScalarToHalf | ( | Scalar | f | ) |
| inline constexpr

Convert a scalar to a half precision float.

See also: https://clang.llvm.org/docs/LanguageExtensions.html This is not currently supported on Windows toolchains.

Definition at line 31 of file half.h.

31 {
32 #ifdef FML_OS_WIN
33 return static_cast<InternalHalf>(0);
34 #else
35 return static_cast<InternalHalf>(f);
36 #endif
37 }

Referenced by impeller::testing::TEST().

## ◆ ScaleSigma()

Sigma impeller::ScaleSigma | ( | Sigma | sigma | ) |

Definition at line 27 of file directional_gaussian_blur_filter_contents.cc.

27 {
28 // Limit the kernel size to 1000x1000 pixels, like Skia does.
29 Scalar clamped = std::min(sigma.sigma, 500.0f);
30 Scalar scalar = 1.0 - 3.4e-3 * clamped + 3.4e-06 * clamped * clamped;
31 return Sigma(clamped * scalar);
32 }

References impeller::Sigma::sigma.

Referenced by impeller::DirectionalGaussianBlurFilterContents::GetFilterCoverage().

## ◆ SetLuminosity()

static constexpr Vector3 impeller::SetLuminosity | ( | Vector3 | color,
|  | Scalar | luminosity
| ) |  |
| inline static constexpr

Definition at line 160 of file color.cc.

161 {
162 Scalar relative_lum = luminosity - Luminosity(color);
163 return ClipColor(color + relative_lum);
164 }

References ClipColor(), and Luminosity().

Referenced by impeller::Color::Blend().

## ◆ SetSaturation()

static constexpr Vector3 impeller::SetSaturation | ( | Vector3 | color,
|  | Scalar | saturation
| ) |  |
| inline static constexpr

Definition at line 171 of file color.cc.

172 {
173 Scalar mn = std::min(std::min(color.x, color.y), color.z);
174 Scalar mx = std::max(std::max(color.x, color.y), color.z);
175 return (mn < mx) ? ((color - mn) * saturation) / (mx - mn) : Vector3();
176 }

References impeller::Vector3::x, impeller::Vector3::y, and impeller::Vector3::z.

Referenced by impeller::Color::Blend().

## ◆ SetTextureLayout()

static void impeller::SetTextureLayout | ( | const Attachment & | attachment,
|  | const vk::AttachmentDescription & | attachment_desc,
|  | const std::shared_ptr< CommandBufferVK > & | command_buffer,
|  | const std::shared_ptr< Texture > Attachment::* | texture_ptr
| ) |  |
| static

Definition at line 72 of file render_pass_vk.cc.

76 {
77 const auto& texture = attachment.*texture_ptr;
78 if (!texture) {
79 return;
80 }
81 const auto& texture_vk = TextureVK::Cast(*texture);
82
83 if (attachment_desc.initialLayout == vk::ImageLayout::eGeneral) {
84 BarrierVK barrier;
85 barrier.new_layout = vk::ImageLayout::eGeneral;
86 barrier.cmd_buffer = command_buffer->GetEncoder()->GetCommandBuffer();
87 barrier.src_access = vk::AccessFlagBits::eShaderRead;
88 barrier.src_stage = vk::PipelineStageFlagBits::eFragmentShader;
89 barrier.dst_access = vk::AccessFlagBits::eColorAttachmentWrite |
90 vk::AccessFlagBits::eTransferWrite;
91 barrier.dst_stage = vk::PipelineStageFlagBits::eColorAttachmentOutput |
92 vk::PipelineStageFlagBits::eTransfer;
93
94 texture_vk.SetLayout(barrier);
95 }
96
97 // Instead of transitioning layouts manually using barriers, we are going to
98 // make the subpass perform our transitions.
99 texture_vk.SetLayoutWithoutEncoding(attachment_desc.finalLayout);
100 }

References impeller::BackendCast< TextureVK, Texture >::Cast(), impeller::BarrierVK::cmd_buffer, impeller::BarrierVK::dst_access, impeller::BarrierVK::dst_stage, impeller::BarrierVK::new_layout, impeller::BarrierVK::src_access, and impeller::BarrierVK::src_stage.

## ◆ SetViewportAndScissor()

static void impeller::SetViewportAndScissor | ( | const Command & | command,
|  | const vk::CommandBuffer & | cmd_buffer,
|  | PassBindingsCache & | cmd_buffer_cache,
|  | const ISize & | target_size
| ) |  |
| static

Definition at line 343 of file render_pass_vk.cc.

346 {
347 // Set the viewport.
348 const auto& vp = command.viewport.value_or<Viewport>(
349 {.rect = Rect::MakeSize(target_size)});
350 vk::Viewport viewport = vk::Viewport()
351 .setWidth(vp.rect.GetWidth())
352 .setHeight(-vp.rect.GetHeight())
353 .setY(vp.rect.GetHeight())
354 .setMinDepth(0.0f)
355 .setMaxDepth(1.0f);
356 cmd_buffer_cache.SetViewport(cmd_buffer, 0, 1, &viewport);
357
358 // Set the scissor rect.
359 const auto& sc = command.scissor.value_or(IRect::MakeSize(target_size));
360 vk::Rect2D scissor =
361 vk::Rect2D()
362 .setOffset(vk::Offset2D(sc.GetX(), sc.GetY()))
363 .setExtent(vk::Extent2D(sc.GetWidth(), sc.GetHeight()));
364 cmd_buffer_cache.SetScissor(cmd_buffer, 0, 1, &scissor);
365 }

References impeller::Command::scissor, impeller::PassBindingsCache::SetScissor(), impeller::PassBindingsCache::SetViewport(), and impeller::Command::viewport.

## ◆ ShaderLibraryMappingsForPlayground() [1/3]

static std::vector<std::shared_ptr<fml::Mapping> > impeller::ShaderLibraryMappingsForPlayground | ( |  | ) |
| static

Definition at line 31 of file playground_impl_vk.cc.

31 {
32 return {
33 std::make_shared<fml::NonOwnedMapping>(impeller_entity_shaders_vk_data,
34 impeller_entity_shaders_vk_length),
35 std::make_shared<fml::NonOwnedMapping>(impeller_modern_shaders_vk_data,
36 impeller_modern_shaders_vk_length),
37 std::make_shared<fml::NonOwnedMapping>(
38 impeller_framebuffer_blend_shaders_vk_data,
39 impeller_framebuffer_blend_shaders_vk_length),
40 std::make_shared<fml::NonOwnedMapping>(
41 impeller_fixtures_shaders_vk_data,
42 impeller_fixtures_shaders_vk_length),
43 std::make_shared<fml::NonOwnedMapping>(impeller_imgui_shaders_vk_data,
44 impeller_imgui_shaders_vk_length),
45 std::make_shared<fml::NonOwnedMapping>(impeller_scene_shaders_vk_data,
46 impeller_scene_shaders_vk_length),
47 std::make_shared<fml::NonOwnedMapping>(
48 impeller_compute_shaders_vk_data, impeller_compute_shaders_vk_length),
49 };
50 }

## ◆ ShaderLibraryMappingsForPlayground() [2/3]

static std::vector<std::shared_ptr<fml::Mapping> > impeller::ShaderLibraryMappingsForPlayground | ( |  | ) |
| static

Definition at line 36 of file playground_impl_mtl.mm.

36 {
37 return {std::make_shared<fml::NonOwnedMapping>(
38 impeller_entity_shaders_data, impeller_entity_shaders_length),
39 std::make_shared<fml::NonOwnedMapping>(
40 impeller_modern_shaders_data, impeller_modern_shaders_length),
41 std::make_shared<fml::NonOwnedMapping>(
42 impeller_framebuffer_blend_shaders_data,
43 impeller_framebuffer_blend_shaders_length),
44 std::make_shared<fml::NonOwnedMapping>(
45 impeller_fixtures_shaders_data, impeller_fixtures_shaders_length),
46 std::make_shared<fml::NonOwnedMapping>(impeller_imgui_shaders_data,
47 impeller_imgui_shaders_length),
48 std::make_shared<fml::NonOwnedMapping>(impeller_scene_shaders_data,
49 impeller_scene_shaders_length),
50 std::make_shared<fml::NonOwnedMapping>(
51 impeller_compute_shaders_data, impeller_compute_shaders_length)
52
53 };
54 }

## ◆ ShaderLibraryMappingsForPlayground() [3/3]

static std::vector<std::shared_ptr<fml::Mapping> > impeller::ShaderLibraryMappingsForPlayground | ( |  | ) |
| static

Definition at line 91 of file playground_impl_gles.cc.

91 {
92 return {
93 std::make_shared<fml::NonOwnedMapping>(
94 impeller_entity_shaders_gles_data,
95 impeller_entity_shaders_gles_length),
96 std::make_shared<fml::NonOwnedMapping>(
97 impeller_fixtures_shaders_gles_data,
98 impeller_fixtures_shaders_gles_length),
99 std::make_shared<fml::NonOwnedMapping>(
100 impeller_imgui_shaders_gles_data, impeller_imgui_shaders_gles_length),
101 std::make_shared<fml::NonOwnedMapping>(
102 impeller_scene_shaders_gles_data, impeller_scene_shaders_gles_length),
103 };
104 }

Referenced by impeller::PlaygroundImplMTL::PlaygroundImplMTL(), and impeller::PlaygroundImplVK::PlaygroundImplVK().

## ◆ SortUniforms()

std::vector< spirv_cross::ID > impeller::SortUniforms | ( | const spirv_cross::ParsedIR * | ir,
|  | const spirv_cross::Compiler * | compiler,
|  | std::optional< spirv_cross::SPIRType::BaseType > | type_filter = `std::nullopt`,
|  | bool | include = `true`
| ) |  |

Sorts uniform declarations in an IR according to decoration order.

The [type_filter] may be optionally supplied to limit which types are returned The [include] value can be set to false change this filter to exclude instead of include.

Definition at line 11 of file uniform_sorter.cc.

15 {
16 // Sort the IR so that the uniforms are in declaration order.
17 std::vector<spirv_cross::ID> uniforms;
18 ir->for_each_typed_id<spirv_cross::SPIRVariable>(
19 [&](uint32_t, const spirv_cross::SPIRVariable& var) {
20 if (var.storage != spv::StorageClassUniformConstant) {
21 return;
22 }
23 const auto& type = compiler->get_type(var.basetype);
24 if (!type_filter.has_value() ||
25 (include && type_filter.value() == type.basetype) ||
26 (!include && type_filter.value() != type.basetype)) {
27 uniforms.push_back(var.self);
28 }
29 });
30
31 auto compare_locations = [&ir](spirv_cross::ID id1, spirv_cross::ID id2) {
32 auto& flags1 = ir->get_decoration_bitset(id1);
33 auto& flags2 = ir->get_decoration_bitset(id2);
34 // Put the uniforms with no location after the ones that have a location.
35 if (!flags1.get(spv::Decoration::DecorationLocation)) {
36 return false;
37 }
38 if (!flags2.get(spv::Decoration::DecorationLocation)) {
39 return true;
40 }
41 // Sort in increasing order of location.
42 return ir->get_decoration(id1, spv::Decoration::DecorationLocation) <
43 ir->get_decoration(id2, spv::Decoration::DecorationLocation);
44 };
45 std::sort(uniforms.begin(), uniforms.end(), compare_locations);
46
47 return uniforms;
48 }

## ◆ SPrintF()

std::string impeller::SPrintF | ( | const char * | format,
|  |  | ...
| ) |  |

Definition at line 12 of file strings.cc.

12 {
13 std::string ret_val;
14 va_list list;
15 va_list list2;
16 va_start(list, format);
17 va_copy(list2, list);
18 if (auto string_length = ::vsnprintf(nullptr, 0, format, list);
19 string_length >= 0) {
20 auto buffer = reinterpret_cast<char*>(::malloc(string_length + 1));
21 ::vsnprintf(buffer, string_length + 1, format, list2);
22 ret_val = std::string{buffer, static_cast<size_t>(string_length)};
23 ::free(buffer);
24 }
25 va_end(list2);
26 va_end(list);
27 return ret_val;
28 }

Referenced by impeller::BlitPass::AddCopy(), AdvancedBlend(), ColorToString(), CreateGradientTexture(), impeller::RenderTarget::CreateOffscreen(), impeller::RenderTarget::CreateOffscreenMSAA(), CreateTextureForDecompressedImage(), DepthAttachmentToString(), impeller::FilterContentsFilterInput::GetSnapshot(), impeller::ContentsFilterInput::GetSnapshot(), ImGui_ImplImpeller_RenderDrawData(), impeller::ComputePipelineBuilder< ComputeShader_ >::InitializePipelineDescriptorDefaults(), impeller::PipelineBuilder< VertexShader_, FragmentShader_ >::InitializePipelineDescriptorDefaults(), LinkProgram(), impeller::ContentContext::MakeSubpass(), PipelineBlend(), impeller::AtlasContents::Render(), impeller::ComputePass::SetLabel(), impeller::BlitPass::SetLabel(), impeller::RenderPass::SetLabel(), impeller::RenderTarget::SetupStencilAttachment(), impeller::testing::TEST(), and impeller::RenderTarget::ToString().

## ◆ StencilAttachmentToString()

std::string impeller::StencilAttachmentToString | ( | const StencilAttachment & | stencil | ) |

Definition at line 137 of file formats.cc.

137 {
138 std::stringstream stream;
139 stream << AttachmentToString(stencil) << ",";
140 stream << "ClearStencil=" << stencil.clear_stencil;
141 return stream.str();
142 }

References AttachmentToString(), and impeller::StencilAttachment::clear_stencil.

Referenced by impeller::RenderTarget::ToString().

## ◆ StorageModeToString()

constexpr const char* impeller::StorageModeToString | ( | StorageMode | mode | ) |
| constexpr

Definition at line 55 of file formats.h.

55 {
56 switch (mode) {
57 case StorageMode::kHostVisible:
58 return "HostVisible";
59 case StorageMode::kDevicePrivate:
60 return "DevicePrivate";
61 case StorageMode::kDeviceTransient:
62 return "DeviceTransient";
63 }
64 FML_UNREACHABLE();
65 }

References kDevicePrivate, kDeviceTransient, and kHostVisible.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK(), and TextureDescriptorToString().

## ◆ StoreActionNeedsResolveTexture()

constexpr bool impeller::StoreActionNeedsResolveTexture | ( | StoreAction | action | ) |
| constexpr

Definition at line 15 of file formats.cc.

15 {
16 switch (action) {
17 case StoreAction::kDontCare:
18 case StoreAction::kStore:
19 return false;
20 case StoreAction::kMultisampleResolve:
21 case StoreAction::kStoreAndMultisampleResolve:
22 return true;
23 }
24 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

Referenced by impeller::Attachment::IsValid().

## ◆ StoreActionToString()

constexpr const char* impeller::StoreActionToString | ( | StoreAction | action | ) |
| constexpr

Definition at line 221 of file formats.h.

221 {
222 switch (action) {
223 case StoreAction::kDontCare:
224 return "DontCare";
225 case StoreAction::kStore:
226 return "Store";
227 case StoreAction::kMultisampleResolve:
228 return "MultisampleResolve";
229 case StoreAction::kStoreAndMultisampleResolve:
230 return "StoreAndMultisampleResolve";
231 }
232 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

Referenced by AttachmentToString().

## ◆ StripPrefix()

std::string impeller::StripPrefix | ( | const std::string & | string,
|  | const std::string & | to_strip
| ) |  |

Definition at line 42 of file strings.cc.

43 {
44 if (!HasPrefix(string, to_strip)) {
45 return string;
46 }
47 return string.substr(to_strip.length());
48 }

References HasPrefix().

Referenced by DetermineVersion().

## ◆ SupportsLossyTextureCompression()

static bool impeller::SupportsLossyTextureCompression | ( | id< MTLDevice > | device | ) |
| static

Definition at line 81 of file allocator_mtl.mm.

81 {
82 #ifdef FML_OS_IOS_SIMULATOR
83 return false;
84 #else
85 if (@available(macOS 10.15, iOS 13, tvOS 13, *)) {
86 return [device supportsFamily:MTLGPUFamilyApple8];
87 }
88 return false;
89 #endif
90 }

## ◆ Tessellate()

IMPELLER_API struct Vertices * impeller::Tessellate | ( | PathBuilder * | builder,
|  | int | fill_type,
|  | Scalar | tolerance
| ) |  |

Definition at line 40 of file tessellator.cc.

42 {
43 auto path = builder->CopyPath(static_cast<FillType>(fill_type));
44 std::vector<float> points;
45 if (Tessellator{}.Tessellate(
46 path, tolerance,
47 [&points](const float* vertices, size_t vertices_count,
48 const uint16_t* indices, size_t indices_count) {
49 // Results are expected to be re-duplicated.
50 std::vector<Point> raw_points;
51 for (auto i = 0u; i < vertices_count * 2; i += 2) {
52 raw_points.emplace_back(Point{vertices[i], vertices[i + 1]});
53 }
54 for (auto i = 0u; i < indices_count; i++) {
55 auto point = raw_points[indices[i]];
56 points.push_back(point.x);
57 points.push_back(point.y);
58 }
59 return true;
60 }) != Tessellator::Result::kSuccess) {
61 return nullptr;
62 }
63
64 Vertices* vertices = new Vertices();
65 vertices->points = new float[points.size()];
66 if (!vertices->points) {
67 return nullptr;
68 }
69 vertices->length = points.size();
70 std::copy(points.begin(), points.end(), vertices->points);
71 return vertices;
72 }

References impeller::PathBuilder::CopyPath(), impeller::Tessellator::kSuccess, impeller::Vertices::length, impeller::Vertices::points, and impeller::Tessellator::Tessellate().

## ◆ TextureDescriptorToString()

std::string impeller::TextureDescriptorToString | ( | const TextureDescriptor & | desc | ) |

Definition at line 11 of file texture_descriptor.cc.

11 {
12 std::stringstream stream;
13 stream << "StorageMode=" << StorageModeToString(desc.storage_mode) << ",";
14 stream << "Type=" << TextureTypeToString(desc.type) << ",";
15 stream << "Format=" << PixelFormatToString(desc.format) << ",";
16 stream << "Size=" << desc.size << ",";
17 stream << "MipCount=" << desc.mip_count << ",";
18 stream << "SampleCount=" << static_cast<size_t>(desc.sample_count) << ",";
19 stream << "Compression=" << CompressionTypeToString(desc.compression_type);
20 return stream.str();
21 }

References impeller::TextureDescriptor::compression_type, CompressionTypeToString(), impeller::TextureDescriptor::format, impeller::TextureDescriptor::mip_count, PixelFormatToString(), impeller::TextureDescriptor::sample_count, impeller::TextureDescriptor::size, impeller::TextureDescriptor::storage_mode, StorageModeToString(), TextureTypeToString(), and impeller::TextureDescriptor::type.

Referenced by AttachmentToString().

## ◆ TextureTypeToString()

constexpr const char* impeller::TextureTypeToString | ( | TextureType | type | ) |
| constexpr

Definition at line 264 of file formats.h.

264 {
265 switch (type) {
266 case TextureType::kTexture2D:
267 return "Texture2D";
268 case TextureType::kTexture2DMultisample:
269 return "Texture2DMultisample";
270 case TextureType::kTextureCube:
271 return "TextureCube";
272 case TextureType::kTextureExternalOES:
273 return "TextureExternalOES";
274 }
275 FML_UNREACHABLE();
276 }

References kTexture2D, kTexture2DMultisample, kTextureCube, and kTextureExternalOES.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK(), impeller::RenderTarget::IsValid(), and TextureDescriptorToString().

## ◆ TextureUsageIsRenderTarget()

constexpr bool impeller::TextureUsageIsRenderTarget | ( | TextureUsageMask | mask | ) |
| constexpr

Definition at line 304 of file formats.h.

304 {
305 return static_cast<TextureUsageMask>(TextureUsage::kRenderTarget) & mask;
306 }

References kRenderTarget.

## ◆ TextureUsageMaskToString()

std::string impeller::TextureUsageMaskToString | ( | TextureUsageMask | mask | ) |

Definition at line 81 of file formats.cc.

81 {
82 std::vector<TextureUsage> usages;
83 if (mask & static_cast<TextureUsageMask>(TextureUsage::kShaderRead)) {
84 usages.push_back(TextureUsage::kShaderRead);
85 }
86 if (mask & static_cast<TextureUsageMask>(TextureUsage::kShaderWrite)) {
87 usages.push_back(TextureUsage::kShaderWrite);
88 }
89 if (mask & static_cast<TextureUsageMask>(TextureUsage::kRenderTarget)) {
90 usages.push_back(TextureUsage::kRenderTarget);
91 }
92 std::stringstream stream;
93 stream << "{ ";
94 for (size_t i = 0; i < usages.size(); i++) {
95 stream << TextureUsageToString(usages[i]);
96 if (i != usages.size() - 1u) {
97 stream << ", ";
98 }
99 }
100 stream << " }";
101 return stream.str();
102 }

References kRenderTarget, kShaderRead, kShaderWrite, and TextureUsageToString().

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ TextureUsageToString()

constexpr const char* impeller::TextureUsageToString | ( | TextureUsage | usage | ) |
| constexpr

Definition at line 308 of file formats.h.

308 {
309 switch (usage) {
310 case TextureUsage::kUnknown:
311 return "Unknown";
312 case TextureUsage::kShaderRead:
313 return "ShaderRead";
314 case TextureUsage::kShaderWrite:
315 return "ShaderWrite";
316 case TextureUsage::kRenderTarget:
317 return "RenderTarget";
318 }
319 FML_UNREACHABLE();
320 }

References kRenderTarget, kShaderRead, kShaderWrite, and kUnknown.

Referenced by TextureUsageMaskToString().

## ◆ TileModeToAddressMode()

static std::optional<SamplerAddressMode> impeller::TileModeToAddressMode | ( | Entity::TileMode | tile_mode,
|  | const Capabilities & | capabilities
| ) |  |
| static

Definition at line 18 of file tiled_texture_contents.cc.

20 {
21 switch (tile_mode) {
22 case Entity::TileMode::kClamp:
23 return SamplerAddressMode::kClampToEdge;
24 break;
25 case Entity::TileMode::kMirror:
26 return SamplerAddressMode::kMirror;
27 break;
28 case Entity::TileMode::kRepeat:
29 return SamplerAddressMode::kRepeat;
30 break;
31 case Entity::TileMode::kDecal:
32 if (capabilities.SupportsDecalSamplerAddressMode()) {
33 return SamplerAddressMode::kDecal;
34 }
35 return std::nullopt;
36 }
37 }

References impeller::Entity::kClamp, kClampToEdge, impeller::Entity::kDecal, kDecal, impeller::Entity::kMirror, kMirror, impeller::Entity::kRepeat, kRepeat, and impeller::Capabilities::SupportsDecalSamplerAddressMode().

## ◆ ToAddressMode()

static GLint impeller::ToAddressMode | ( | SamplerAddressMode | mode,
|  | bool | supports_decal_sampler_address_mode
| ) |  |
| static

Definition at line 56 of file sampler_gles.cc.

57 {
58 switch (mode) {
59 case SamplerAddressMode::kClampToEdge:
60 return GL_CLAMP_TO_EDGE;
61 case SamplerAddressMode::kRepeat:
62 return GL_REPEAT;
63 case SamplerAddressMode::kMirror:
64 return GL_MIRRORED_REPEAT;
65 case SamplerAddressMode::kDecal:
66 if (supports_decal_sampler_address_mode) {
67 return IMPELLER_GL_CLAMP_TO_BORDER;
68 } else {
69 return GL_CLAMP_TO_EDGE;
70 }
71 }
72 FML_UNREACHABLE();
73 }

References IMPELLER_GL_CLAMP_TO_BORDER, kClampToEdge, kDecal, kMirror, and kRepeat.

Referenced by impeller::SamplerGLES::ConfigureBoundTexture().

## ◆ ToArchiveRenderingBackend()

constexpr ArchiveRenderingBackend impeller::ToArchiveRenderingBackend | ( | fb::RenderingBackend | backend | ) |
| constexpr

Definition at line 11 of file multi_arch_shader_archive.cc.

12 {
13 switch (backend) {
14 case fb::RenderingBackend::kOpenGLES:
15 return ArchiveRenderingBackend::kOpenGLES;
16 case fb::RenderingBackend::kVulkan:
17 return ArchiveRenderingBackend::kVulkan;
18 case fb::RenderingBackend::kMetal:
19 return ArchiveRenderingBackend::kMetal;
20 }
21 FML_UNREACHABLE();
22 }

References kMetal, kOpenGLES, and kVulkan.

Referenced by impeller::MultiArchShaderArchive::MultiArchShaderArchive().

## ◆ ToArrayLayerCount()

constexpr uint32_t impeller::ToArrayLayerCount | ( | TextureType | type | ) |
| constexpr

Definition at line 594 of file formats_vk.h.

594 {
595 switch (type) {
596 case TextureType::kTexture2D:
597 case TextureType::kTexture2DMultisample:
598 return 1u;
599 case TextureType::kTextureCube:
600 return 6u;
601 case TextureType::kTextureExternalOES:
602 VALIDATION_LOG
603 << "kTextureExternalOES can not be used with the Vulkan backend.";
604 }
605 FML_UNREACHABLE();
606 }

References kTexture2D, kTexture2DMultisample, kTextureCube, kTextureExternalOES, and VALIDATION_LOG.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK(), impeller::TextureSourceVK::SetLayout(), and impeller::SwapchainImageVK::SwapchainImageVK().

## ◆ ToAttachmentPoint()

static GLenum impeller::ToAttachmentPoint | ( | TextureGLES::AttachmentPoint | point | ) |
| static

Definition at line 460 of file texture_gles.cc.

460 {
461 switch (point) {
462 case TextureGLES::AttachmentPoint::kColor0:
463 return GL_COLOR_ATTACHMENT0;
464 case TextureGLES::AttachmentPoint::kDepth:
465 return GL_DEPTH_ATTACHMENT;
466 case TextureGLES::AttachmentPoint::kStencil:
467 return GL_STENCIL_ATTACHMENT;
468 }
469 }

References impeller::TextureGLES::kColor0, impeller::TextureGLES::kDepth, and impeller::TextureGLES::kStencil.

Referenced by impeller::TextureGLES::SetAsFramebufferAttachment().

## ◆ ToBlendFactor()

constexpr GLenum impeller::ToBlendFactor | ( | BlendFactor | factor | ) |
| constexpr

Definition at line 91 of file formats_gles.h.

91 {
92 switch (factor) {
93 case BlendFactor::kZero:
94 return GL_ZERO;
95 case BlendFactor::kOne:
96 return GL_ONE;
97 case BlendFactor::kSourceColor:
98 return GL_SRC_COLOR;
99 case BlendFactor::kOneMinusSourceColor:
100 return GL_ONE_MINUS_SRC_COLOR;
101 case BlendFactor::kSourceAlpha:
102 return GL_SRC_ALPHA;
103 case BlendFactor::kOneMinusSourceAlpha:
104 return GL_ONE_MINUS_SRC_ALPHA;
105 case BlendFactor::kDestinationColor:
106 return GL_DST_COLOR;
107 case BlendFactor::kOneMinusDestinationColor:
108 return GL_ONE_MINUS_DST_COLOR;
109 case BlendFactor::kDestinationAlpha:
110 return GL_DST_ALPHA;
111 case BlendFactor::kOneMinusDestinationAlpha:
112 return GL_ONE_MINUS_DST_ALPHA;
113 case BlendFactor::kSourceAlphaSaturated:
114 return GL_SRC_ALPHA_SATURATE;
115 case BlendFactor::kBlendColor:
116 return GL_CONSTANT_COLOR;
117 case BlendFactor::kOneMinusBlendColor:
118 return GL_ONE_MINUS_CONSTANT_COLOR;
119 case BlendFactor::kBlendAlpha:
120 return GL_CONSTANT_ALPHA;
121 case BlendFactor::kOneMinusBlendAlpha:
122 return GL_ONE_MINUS_CONSTANT_ALPHA;
123 }
124 FML_UNREACHABLE();
125 }

References kBlendAlpha, kBlendColor, kDestinationAlpha, kDestinationColor, kOne, kOneMinusBlendAlpha, kOneMinusBlendColor, kOneMinusDestinationAlpha, kOneMinusDestinationColor, kOneMinusSourceAlpha, kOneMinusSourceColor, kSourceAlpha, kSourceAlphaSaturated, kSourceColor, and kZero.

Referenced by ConfigureBlending().

## ◆ ToBlendMode()

static BlendMode impeller::ToBlendMode | ( | flutter::DlBlendMode | mode | ) |
| static

Definition at line 47 of file dl_dispatcher.cc.

47 {
48 switch (mode) {
49 case flutter::DlBlendMode::kClear:
50 return BlendMode::kClear;
51 case flutter::DlBlendMode::kSrc:
52 return BlendMode::kSource;
53 case flutter::DlBlendMode::kDst:
54 return BlendMode::kDestination;
55 case flutter::DlBlendMode::kSrcOver:
56 return BlendMode::kSourceOver;
57 case flutter::DlBlendMode::kDstOver:
58 return BlendMode::kDestinationOver;
59 case flutter::DlBlendMode::kSrcIn:
60 return BlendMode::kSourceIn;
61 case flutter::DlBlendMode::kDstIn:
62 return BlendMode::kDestinationIn;
63 case flutter::DlBlendMode::kSrcOut:
64 return BlendMode::kSourceOut;
65 case flutter::DlBlendMode::kDstOut:
66 return BlendMode::kDestinationOut;
67 case flutter::DlBlendMode::kSrcATop:
68 return BlendMode::kSourceATop;
69 case flutter::DlBlendMode::kDstATop:
70 return BlendMode::kDestinationATop;
71 case flutter::DlBlendMode::kXor:
72 return BlendMode::kXor;
73 case flutter::DlBlendMode::kPlus:
74 return BlendMode::kPlus;
75 case flutter::DlBlendMode::kModulate:
76 return BlendMode::kModulate;
77 case flutter::DlBlendMode::kScreen:
78 return BlendMode::kScreen;
79 case flutter::DlBlendMode::kOverlay:
80 return BlendMode::kOverlay;
81 case flutter::DlBlendMode::kDarken:
82 return BlendMode::kDarken;
83 case flutter::DlBlendMode::kLighten:
84 return BlendMode::kLighten;
85 case flutter::DlBlendMode::kColorDodge:
86 return BlendMode::kColorDodge;
87 case flutter::DlBlendMode::kColorBurn:
88 return BlendMode::kColorBurn;
89 case flutter::DlBlendMode::kHardLight:
90 return BlendMode::kHardLight;
91 case flutter::DlBlendMode::kSoftLight:
92 return BlendMode::kSoftLight;
93 case flutter::DlBlendMode::kDifference:
94 return BlendMode::kDifference;
95 case flutter::DlBlendMode::kExclusion:
96 return BlendMode::kExclusion;
97 case flutter::DlBlendMode::kMultiply:
98 return BlendMode::kMultiply;
99 case flutter::DlBlendMode::kHue:
100 return BlendMode::kHue;
101 case flutter::DlBlendMode::kSaturation:
102 return BlendMode::kSaturation;
103 case flutter::DlBlendMode::kColor:
104 return BlendMode::kColor;
105 case flutter::DlBlendMode::kLuminosity:
106 return BlendMode::kLuminosity;
107 }
108 FML_UNREACHABLE();
109 }

References kClear, kColor, kColorBurn, kColorDodge, kDarken, kDestination, kDestinationATop, kDestinationIn, kDestinationOut, kDestinationOver, kDifference, kExclusion, kHardLight, kHue, kLighten, kLuminosity, kModulate, kMultiply, kOverlay, kPlus, kSaturation, kScreen, kSoftLight, kSource, kSourceATop, kSourceIn, kSourceOut, kSourceOver, and kXor.

Referenced by impeller::DlDispatcher::drawAtlas(), impeller::DlDispatcher::drawColor(), impeller::DlDispatcher::drawVertices(), impeller::DlDispatcher::setBlendMode(), and ToColorFilter().

## ◆ ToBlendOperation()

constexpr GLenum impeller::ToBlendOperation | ( | BlendOperation | op | ) |
| constexpr

Definition at line 127 of file formats_gles.h.

127 {
128 switch (op) {
129 case BlendOperation::kAdd:
130 return GL_FUNC_ADD;
131 case BlendOperation::kSubtract:
132 return GL_FUNC_SUBTRACT;
133 case BlendOperation::kReverseSubtract:
134 return GL_FUNC_REVERSE_SUBTRACT;
135 }
136 FML_UNREACHABLE();
137 }

References kAdd, kReverseSubtract, and kSubtract.

Referenced by ConfigureBlending().

## ◆ ToBlurStyle()

static FilterContents::BlurStyle impeller::ToBlurStyle | ( | flutter::DlBlurStyle | blur_style | ) |
| static

Definition at line 492 of file dl_dispatcher.cc.

492 {
493 switch (blur_style) {
494 case flutter::DlBlurStyle::kNormal:
495 return FilterContents::BlurStyle::kNormal;
496 case flutter::DlBlurStyle::kSolid:
497 return FilterContents::BlurStyle::kSolid;
498 case flutter::DlBlurStyle::kOuter:
499 return FilterContents::BlurStyle::kOuter;
500 case flutter::DlBlurStyle::kInner:
501 return FilterContents::BlurStyle::kInner;
502 }
503 }

References impeller::FilterContents::kInner, impeller::FilterContents::kNormal, impeller::FilterContents::kOuter, and impeller::FilterContents::kSolid.

Referenced by impeller::DlDispatcher::setMaskFilter().

## ◆ ToClipOperation()

static Entity::ClipOperation impeller::ToClipOperation | ( | flutter::DlCanvas::ClipOp | clip_op | ) |
| static

Definition at line 712 of file dl_dispatcher.cc.

713 {
714 switch (clip_op) {
715 case flutter::DlCanvas::ClipOp::kDifference:
716 return Entity::ClipOperation::kDifference;
717 case flutter::DlCanvas::ClipOp::kIntersect:
718 return Entity::ClipOperation::kIntersect;
719 }
720 }

References impeller::Entity::kDifference, and impeller::Entity::kIntersect.

Referenced by impeller::DlDispatcher::clipPath(), impeller::DlDispatcher::clipRect(), and impeller::DlDispatcher::clipRRect().

## ◆ ToColorFilter()

static std::shared_ptr<ColorFilter> impeller::ToColorFilter | ( | const flutter::DlColorFilter * | filter | ) |
| static

Definition at line 445 of file dl_dispatcher.cc.

446 {
447 if (filter == nullptr) {
448 return nullptr;
449 }
450 switch (filter->type()) {
451 case flutter::DlColorFilterType::kBlend: {
452 auto dl_blend = filter->asBlend();
453 auto blend_mode = ToBlendMode(dl_blend->mode());
454 auto color = skia_conversions::ToColor(dl_blend->color());
455 return ColorFilter::MakeBlend(blend_mode, color);
456 }
457 case flutter::DlColorFilterType::kMatrix: {
458 const flutter::DlMatrixColorFilter* dl_matrix = filter->asMatrix();
459 impeller::ColorMatrix color_matrix;
460 dl_matrix->get_matrix(color_matrix.array);
461 return ColorFilter::MakeMatrix(color_matrix);
462 }
463 case flutter::DlColorFilterType::kSrgbToLinearGamma:
464 return ColorFilter::MakeSrgbToLinear();
465 case flutter::DlColorFilterType::kLinearToSrgbGamma:
466 return ColorFilter::MakeLinearToSrgb();
467 }
468 return nullptr;
469 }

References impeller::ColorMatrix::array, impeller::ColorFilter::MakeBlend(), impeller::ColorFilter::MakeLinearToSrgb(), impeller::ColorFilter::MakeMatrix(), impeller::ColorFilter::MakeSrgbToLinear(), ToBlendMode(), and impeller::skia_conversions::ToColor().

Referenced by impeller::DlDispatcher::setColorFilter(), and ToImageFilter().

## ◆ ToColors()

static std::vector<Color> impeller::ToColors | ( | const flutter::DlColor | colors[],
|  | int | count
| ) |  |
| static

Definition at line 250 of file dl_dispatcher.cc.

250 {
251 auto result = std::vector<Color>();
252 if (colors == nullptr) {
253 return result;
254 }
255 for (int i = 0; i < count; i++) {
256 result.push_back(skia_conversions::ToColor(colors[i]));
257 }
258 return result;
259 }

References impeller::skia_conversions::ToColor().

Referenced by impeller::DlDispatcher::drawAtlas().

## ◆ ToColorSourceType()

static std::optional<ColorSource::Type> impeller::ToColorSourceType | ( | flutter::DlColorSourceType | type | ) |
| static

Definition at line 261 of file dl_dispatcher.cc.

262 {
263 switch (type) {
264 case flutter::DlColorSourceType::kColor:
265 return ColorSource::Type::kColor;
266 case flutter::DlColorSourceType::kImage:
267 return ColorSource::Type::kImage;
268 case flutter::DlColorSourceType::kLinearGradient:
269 return ColorSource::Type::kLinearGradient;
270 case flutter::DlColorSourceType::kRadialGradient:
271 return ColorSource::Type::kRadialGradient;
272 case flutter::DlColorSourceType::kConicalGradient:
273 return ColorSource::Type::kConicalGradient;
274 case flutter::DlColorSourceType::kSweepGradient:
275 return ColorSource::Type::kSweepGradient;
276 case flutter::DlColorSourceType::kRuntimeEffect:
277 return ColorSource::Type::kRuntimeEffect;
278 #ifdef IMPELLER_ENABLE_3D
279 case flutter::DlColorSourceType::kScene:
280 return ColorSource::Type::kScene;
281 #endif // IMPELLER_ENABLE_3D
282 }
283 }

References impeller::ColorSource::kColor, kColor, impeller::ColorSource::kConicalGradient, impeller::ColorSource::kImage, impeller::ColorSource::kLinearGradient, impeller::ColorSource::kRadialGradient, impeller::ColorSource::kRuntimeEffect, impeller::ColorSource::kScene, and impeller::ColorSource::kSweepGradient.

Referenced by impeller::DlDispatcher::setColorSource().

## ◆ ToColumn()

static constexpr int impeller::ToColumn | ( | size_t | index | ) |
| static constexpr

Definition at line 84 of file archive_statement.cc.

84 {
85 /*
86 * sqlite columns begin from 0
87 */
88 return static_cast<int>(index);
89 }

Referenced by impeller::ArchiveStatement::ReadValue().

## ◆ ToCommitResult()

static CommandBuffer::Status impeller::ToCommitResult | ( | MTLCommandBufferStatus | status | ) |
| static

Definition at line 149 of file command_buffer_mtl.mm.

149 {
150 switch (status) {
151 case MTLCommandBufferStatusCompleted:
152 return CommandBufferMTL::Status::kCompleted;
153 case MTLCommandBufferStatusEnqueued:
154 return CommandBufferMTL::Status::kPending;
155 default:
156 break;
157 }
158 return CommandBufferMTL::Status::kError;
159 }

## ◆ ToCompareFunction()

constexpr GLenum impeller::ToCompareFunction | ( | CompareFunction | func | ) |
| constexpr

Definition at line 69 of file formats_gles.h.

69 {
70 switch (func) {
71 case CompareFunction::kNever:
72 return GL_NEVER;
73 case CompareFunction::kAlways:
74 return GL_ALWAYS;
75 case CompareFunction::kLess:
76 return GL_LESS;
77 case CompareFunction::kEqual:
78 return GL_EQUAL;
79 case CompareFunction::kLessEqual:
80 return GL_LEQUAL;
81 case CompareFunction::kGreater:
82 return GL_GREATER;
83 case CompareFunction::kNotEqual:
84 return GL_NOTEQUAL;
85 case CompareFunction::kGreaterEqual:
86 return GL_GEQUAL;
87 }
88 FML_UNREACHABLE();
89 }

References kAlways, kEqual, kGreater, kGreaterEqual, kLess, kLessEqual, kNever, and kNotEqual.

Referenced by ConfigureStencil(), and EncodeCommandsInReactor().

## ◆ ToDebugIdentifier()

static std::optional<GLenum> impeller::ToDebugIdentifier | ( | DebugResourceType | type | ) |
| static

Definition at line 301 of file proc_table_gles.cc.

301 {
302 switch (type) {
303 case DebugResourceType::kTexture:
304 return GL_TEXTURE;
305 case DebugResourceType::kBuffer:
306 return GL_BUFFER_KHR;
307 case DebugResourceType::kProgram:
308 return GL_PROGRAM_KHR;
309 case DebugResourceType::kShader:
310 return GL_SHADER_KHR;
311 case DebugResourceType::kRenderBuffer:
312 return GL_RENDERBUFFER;
313 case DebugResourceType::kFrameBuffer:
314 return GL_FRAMEBUFFER;
315 }
316 FML_UNREACHABLE();
317 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kShader, and kTexture.

Referenced by impeller::ProcTableGLES::SetDebugLabel().

## ◆ ToDebugResourceType()

static DebugResourceType impeller::ToDebugResourceType | ( | HandleType | type | ) |
| static

Definition at line 173 of file reactor_gles.cc.

173 {
174 switch (type) {
175 case HandleType::kUnknown:
176 FML_UNREACHABLE();
177 case HandleType::kTexture:
178 return DebugResourceType::kTexture;
179 case HandleType::kBuffer:
180 return DebugResourceType::kBuffer;
181 case HandleType::kProgram:
182 return DebugResourceType::kProgram;
183 case HandleType::kRenderBuffer:
184 return DebugResourceType::kRenderBuffer;
185 case HandleType::kFrameBuffer:
186 return DebugResourceType::kFrameBuffer;
187 }
188 FML_UNREACHABLE();
189 }

References kBuffer, kFrameBuffer, kProgram, kRenderBuffer, kTexture, and kUnknown.

## ◆ ToFont()

static Font impeller::ToFont | ( | const SkTextBlobRunIterator & | run | ) |
| static

Definition at line 19 of file text_frame_skia.cc.

19 {
20 auto& font = run.font();
21 auto typeface = std::make_shared<TypefaceSkia>(font.refTypeface());
22
23 SkFontMetrics sk_metrics;
24 font.getMetrics(&sk_metrics);
25
26 Font::Metrics metrics;
27 metrics.point_size = font.getSize();
28 metrics.embolden = font.isEmbolden();
29 metrics.skewX = font.getSkewX();
30 metrics.scaleX = font.getScaleX();
31
32 return Font{std::move(typeface), metrics};
33 }

References impeller::Font::Metrics::embolden, impeller::Font::Metrics::point_size, impeller::Font::Metrics::scaleX, and impeller::Font::Metrics::skewX.

Referenced by MakeTextFrameFromTextBlobSkia().

## ◆ ToHandleType()

HandleType impeller::ToHandleType | ( | TextureGLES::Type | type | ) |

Definition at line 34 of file texture_gles.cc.

34 {
35 switch (type) {
36 case TextureGLES::Type::kTexture:
37 case TextureGLES::Type::kTextureMultisampled:
38 return HandleType::kTexture;
39 case TextureGLES::Type::kRenderBuffer:
40 case TextureGLES::Type::kRenderBufferMultisampled:
41 return HandleType::kRenderBuffer;
42 }
43 FML_UNREACHABLE();
44 }

References impeller::TextureGLES::kRenderBuffer, kRenderBuffer, impeller::TextureGLES::kRenderBufferMultisampled, impeller::TextureGLES::kTexture, kTexture, and impeller::TextureGLES::kTextureMultisampled.

## ◆ ToImageAspectFlags()

constexpr vk::ImageAspectFlags impeller::ToImageAspectFlags | ( | PixelFormat | format | ) |
| constexpr

Definition at line 641 of file formats_vk.h.

641 {
642 switch (format) {
643 case PixelFormat::kUnknown:
644 return {};
645 case PixelFormat::kA8UNormInt:
646 case PixelFormat::kR8UNormInt:
647 case PixelFormat::kR8G8UNormInt:
648 case PixelFormat::kR8G8B8A8UNormInt:
649 case PixelFormat::kR8G8B8A8UNormIntSRGB:
650 case PixelFormat::kB8G8R8A8UNormInt:
651 case PixelFormat::kB8G8R8A8UNormIntSRGB:
652 case PixelFormat::kR32G32B32A32Float:
653 case PixelFormat::kR16G16B16A16Float:
654 case PixelFormat::kB10G10R10XR:
655 case PixelFormat::kB10G10R10XRSRGB:
656 case PixelFormat::kB10G10R10A10XR:
657 return vk::ImageAspectFlagBits::eColor;
658 case PixelFormat::kS8UInt:
659 return vk::ImageAspectFlagBits::eStencil;
660 case PixelFormat::kD24UnormS8Uint:
661 case PixelFormat::kD32FloatS8UInt:
662 return vk::ImageAspectFlagBits::eDepth |
663 vk::ImageAspectFlagBits::eStencil;
664 }
665 FML_UNREACHABLE();
666 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by impeller::TextureSourceVK::SetLayout().

## ◆ ToImageFilter()

static std::shared_ptr<ImageFilter> impeller::ToImageFilter | ( | const flutter::DlImageFilter * | filter | ) |
| static

Definition at line 525 of file dl_dispatcher.cc.

526 {
527 if (filter == nullptr) {
528 return nullptr;
529 }
530
531 switch (filter->type()) {
532 case flutter::DlImageFilterType::kBlur: {
533 auto blur = filter->asBlur();
534 auto sigma_x = Sigma(blur->sigma_x());
535 auto sigma_y = Sigma(blur->sigma_y());
536 auto tile_mode = ToTileMode(blur->tile_mode());
537 return ImageFilter::MakeBlur(
538 sigma_x, sigma_y, FilterContents::BlurStyle::kNormal, tile_mode);
539 }
540 case flutter::DlImageFilterType::kDilate: {
541 auto dilate = filter->asDilate();
542 FML_DCHECK(dilate);
543 if (dilate->radius_x() < 0 || dilate->radius_y() < 0) {
544 return nullptr;
545 }
546 auto radius_x = Radius(dilate->radius_x());
547 auto radius_y = Radius(dilate->radius_y());
548 return ImageFilter::MakeDilate(radius_x, radius_y);
549 }
550 case flutter::DlImageFilterType::kErode: {
551 auto erode = filter->asErode();
552 FML_DCHECK(erode);
553 if (erode->radius_x() < 0 || erode->radius_y() < 0) {
554 return nullptr;
555 }
556 auto radius_x = Radius(erode->radius_x());
557 auto radius_y = Radius(erode->radius_y());
558 return ImageFilter::MakeErode(radius_x, radius_y);
559 }
560 case flutter::DlImageFilterType::kMatrix: {
561 auto matrix_filter = filter->asMatrix();
562 FML_DCHECK(matrix_filter);
563 auto matrix = ToMatrix(matrix_filter->matrix());
564 auto desc = ToSamplerDescriptor(matrix_filter->sampling());
565 return ImageFilter::MakeMatrix(matrix, desc);
566 }
567 case flutter::DlImageFilterType::kCompose: {
568 auto compose = filter->asCompose();
569 FML_DCHECK(compose);
570 auto outer_dl_filter = compose->outer();
571 auto inner_dl_filter = compose->inner();
572 auto outer_filter = ToImageFilter(outer_dl_filter.get());
573 auto inner_filter = ToImageFilter(inner_dl_filter.get());
574 if (!outer_filter) {
575 return inner_filter;
576 }
577 if (!inner_filter) {
578 return outer_filter;
579 }
580 FML_DCHECK(outer_filter && inner_filter);
581
582 return ImageFilter::MakeCompose(*inner_filter, *outer_filter);
583 }
584 case flutter::DlImageFilterType::kColorFilter: {
585 auto color_filter_image_filter = filter->asColorFilter();
586 FML_DCHECK(color_filter_image_filter);
587 auto color_filter =
588 ToColorFilter(color_filter_image_filter->color_filter().get());
589 if (!color_filter) {
590 return nullptr;
591 }
592 // When color filters are used as image filters, set the color filter's
593 // "absorb opacity" flag to false. For image filters, the snapshot
594 // opacity needs to be deferred until the result of the filter chain is
595 // being blended with the layer.
596 return ImageFilter::MakeFromColorFilter(*color_filter);
597 }
598 case flutter::DlImageFilterType::kLocalMatrix: {
599 auto local_matrix_filter = filter->asLocalMatrix();
600 FML_DCHECK(local_matrix_filter);
601 auto internal_filter = local_matrix_filter->image_filter();
602 FML_DCHECK(internal_filter);
603
604 auto image_filter = ToImageFilter(internal_filter.get());
605 if (!image_filter) {
606 return nullptr;
607 }
608
609 auto matrix = ToMatrix(local_matrix_filter->matrix());
610 return ImageFilter::MakeLocalMatrix(matrix, *image_filter);
611 }
612 }
613 }

References impeller::FilterContents::kNormal, impeller::ImageFilter::MakeBlur(), impeller::ImageFilter::MakeCompose(), impeller::ImageFilter::MakeDilate(), impeller::ImageFilter::MakeErode(), impeller::ImageFilter::MakeFromColorFilter(), impeller::ImageFilter::MakeLocalMatrix(), impeller::ImageFilter::MakeMatrix(), ToColorFilter(), ToMatrix(), ToSamplerDescriptor(), and ToTileMode().

Referenced by impeller::DlDispatcher::saveLayer(), and impeller::DlDispatcher::setImageFilter().

## ◆ ToIndexType()

constexpr GLenum impeller::ToIndexType | ( | IndexType | type | ) |
| constexpr

Definition at line 34 of file formats_gles.h.

34 {
35 switch (type) {
36 case IndexType::kUnknown:
37 case IndexType::kNone:
38 FML_UNREACHABLE();
39 case IndexType::k16bit:
40 return GL_UNSIGNED_SHORT;
41 case IndexType::k32bit:
42 return GL_UNSIGNED_INT;
43 }
44 FML_UNREACHABLE();
45 }

References k16bit, k32bit, kNone, and kUnknown.

Referenced by EncodeCommandsInReactor().

## ◆ ToMatrix()

static Matrix impeller::ToMatrix | ( | const SkMatrix & | m | ) |
| static

Definition at line 166 of file dl_dispatcher.cc.

166 {
167 return Matrix{
168 // clang-format off
169 m[0], m[3], 0, m[6],
170 m[1], m[4], 0, m[7],
171 0, 0, 1, 0,
172 m[2], m[5], 0, m[8],
173 // clang-format on
174 };
175 }

Referenced by impeller::DlDispatcher::setColorSource(), and ToImageFilter().

## ◆ ToMode()

constexpr GLenum impeller::ToMode | ( | PrimitiveType | primitive_type | ) |
| constexpr

Definition at line 18 of file formats_gles.h.

18 {
19 switch (primitive_type) {
20 case PrimitiveType::kTriangle:
21 return GL_TRIANGLES;
22 case PrimitiveType::kTriangleStrip:
23 return GL_TRIANGLE_STRIP;
24 case PrimitiveType::kLine:
25 return GL_LINES;
26 case PrimitiveType::kLineStrip:
27 return GL_LINE_STRIP;
28 case PrimitiveType::kPoint:
29 return GL_POINTS;
30 }
31 FML_UNREACHABLE();
32 }

References kLine, kLineStrip, kPoint, kTriangle, and kTriangleStrip.

Referenced by EncodeCommandsInReactor().

## ◆ ToMTLBlendFactor()

constexpr MTLBlendFactor impeller::ToMTLBlendFactor | ( | BlendFactor | type | ) |
| constexpr

Definition at line 115 of file formats_mtl.h.

115 {
116 switch (type) {
117 case BlendFactor::kZero:
118 return MTLBlendFactorZero;
119 case BlendFactor::kOne:
120 return MTLBlendFactorOne;
121 case BlendFactor::kSourceColor:
122 return MTLBlendFactorSourceColor;
123 case BlendFactor::kOneMinusSourceColor:
124 return MTLBlendFactorOneMinusSourceColor;
125 case BlendFactor::kSourceAlpha:
126 return MTLBlendFactorSourceAlpha;
127 case BlendFactor::kOneMinusSourceAlpha:
128 return MTLBlendFactorOneMinusSourceAlpha;
129 case BlendFactor::kDestinationColor:
130 return MTLBlendFactorDestinationColor;
131 case BlendFactor::kOneMinusDestinationColor:
132 return MTLBlendFactorOneMinusDestinationColor;
133 case BlendFactor::kDestinationAlpha:
134 return MTLBlendFactorDestinationAlpha;
135 case BlendFactor::kOneMinusDestinationAlpha:
136 return MTLBlendFactorOneMinusDestinationAlpha;
137 case BlendFactor::kSourceAlphaSaturated:
138 return MTLBlendFactorSourceAlphaSaturated;
139 case BlendFactor::kBlendColor:
140 return MTLBlendFactorBlendColor;
141 case BlendFactor::kOneMinusBlendColor:
142 return MTLBlendFactorOneMinusBlendColor;
143 case BlendFactor::kBlendAlpha:
144 return MTLBlendFactorBlendAlpha;
145 case BlendFactor::kOneMinusBlendAlpha:
146 return MTLBlendFactorOneMinusBlendAlpha;
147 }
148 return MTLBlendFactorZero;
149 };

References kBlendAlpha, kBlendColor, kDestinationAlpha, kDestinationColor, kOne, kOneMinusBlendAlpha, kOneMinusBlendColor, kOneMinusDestinationAlpha, kOneMinusDestinationColor, kOneMinusSourceAlpha, kOneMinusSourceColor, kSourceAlpha, kSourceAlphaSaturated, kSourceColor, and kZero.

Referenced by ToMTLRenderPipelineColorAttachmentDescriptor().

## ◆ ToMTLBlendOperation()

constexpr MTLBlendOperation impeller::ToMTLBlendOperation | ( | BlendOperation | type | ) |
| constexpr

Definition at line 198 of file formats_mtl.h.

198 {
199 switch (type) {
200 case BlendOperation::kAdd:
201 return MTLBlendOperationAdd;
202 case BlendOperation::kSubtract:
203 return MTLBlendOperationSubtract;
204 case BlendOperation::kReverseSubtract:
205 return MTLBlendOperationReverseSubtract;
206 }
207 return MTLBlendOperationAdd;
208 };

References kAdd, kReverseSubtract, and kSubtract.

Referenced by ToMTLRenderPipelineColorAttachmentDescriptor().

## ◆ ToMTLClearColor()

MTLClearColor impeller::ToMTLClearColor | ( | const Color & | color | ) |
| inline

Definition at line 372 of file formats_mtl.h.

372 {
373 return MTLClearColorMake(color.red, color.green, color.blue, color.alpha);
374 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

Referenced by ConfigureColorAttachment().

## ◆ ToMTLColorWriteMask()

constexpr MTLColorWriteMask impeller::ToMTLColorWriteMask | ( | std::underlying_type_t< ColorWriteMask > | type | ) |
| constexpr

Definition at line 210 of file formats_mtl.h.

211 {
212 using UnderlyingType = decltype(type);
213
214 MTLColorWriteMask mask = MTLColorWriteMaskNone;
215
216 if (type & static_cast<UnderlyingType>(ColorWriteMask::kRed)) {
217 mask |= MTLColorWriteMaskRed;
218 }
219
220 if (type & static_cast<UnderlyingType>(ColorWriteMask::kGreen)) {
221 mask |= MTLColorWriteMaskGreen;
222 }
223
224 if (type & static_cast<UnderlyingType>(ColorWriteMask::kBlue)) {
225 mask |= MTLColorWriteMaskBlue;
226 }
227
228 if (type & static_cast<UnderlyingType>(ColorWriteMask::kAlpha)) {
229 mask |= MTLColorWriteMaskAlpha;
230 }
231
232 return mask;
233 };

References kAlpha, kBlue, kGreen, and kRed.

Referenced by ToMTLRenderPipelineColorAttachmentDescriptor().

## ◆ ToMTLCompareFunction()

constexpr MTLCompareFunction impeller::ToMTLCompareFunction | ( | CompareFunction | func | ) |
| constexpr

Definition at line 235 of file formats_mtl.h.

235 {
236 switch (func) {
237 case CompareFunction::kNever:
238 return MTLCompareFunctionNever;
239 case CompareFunction::kLess:
240 return MTLCompareFunctionLess;
241 case CompareFunction::kEqual:
242 return MTLCompareFunctionEqual;
243 case CompareFunction::kLessEqual:
244 return MTLCompareFunctionLessEqual;
245 case CompareFunction::kGreater:
246 return MTLCompareFunctionGreater;
247 case CompareFunction::kNotEqual:
248 return MTLCompareFunctionNotEqual;
249 case CompareFunction::kGreaterEqual:
250 return MTLCompareFunctionGreaterEqual;
251 case CompareFunction::kAlways:
252 return MTLCompareFunctionAlways;
253 }
254 return MTLCompareFunctionAlways;
255 };

References kAlways, kEqual, kGreater, kGreaterEqual, kLess, kLessEqual, kNever, and kNotEqual.

Referenced by ToMTLDepthStencilDescriptor(), and ToMTLStencilDescriptor().

## ◆ ToMTLCullMode()

constexpr MTLCullMode impeller::ToMTLCullMode | ( | CullMode | mode | ) |
| constexpr

Definition at line 186 of file formats_mtl.h.

186 {
187 switch (mode) {
188 case CullMode::kNone:
189 return MTLCullModeNone;
190 case CullMode::kBackFace:
191 return MTLCullModeBack;
192 case CullMode::kFrontFace:
193 return MTLCullModeFront;
194 }
195 return MTLCullModeNone;
196 }

References kBackFace, kFrontFace, and kNone.

## ◆ ToMTLDepthStencilDescriptor()

MTLDepthStencilDescriptor * impeller::ToMTLDepthStencilDescriptor | ( | std::optional< DepthAttachmentDescriptor > | depth,
|  | std::optional< StencilAttachmentDescriptor > | front,
|  | std::optional< StencilAttachmentDescriptor > | back
| ) |  |

Definition at line 54 of file formats_mtl.mm.

57 {
58 if (!depth) {
59 depth = DepthAttachmentDescriptor{
60 // Always pass the depth test.
61 .depth_compare = CompareFunction::kAlways,
62 .depth_write_enabled = false,
63 };
64 }
65
66 auto des = [[MTLDepthStencilDescriptor alloc] init];
67
68 // These temporary variables are necessary for clang-tidy (Fuchsia LLVM
69 // version 17.0.0git) to not crash.
70 auto compare_function = ToMTLCompareFunction(depth->depth_compare);
71 auto depth_write_enabled = depth->depth_write_enabled;
72
73 des.depthCompareFunction = compare_function;
74 des.depthWriteEnabled = depth_write_enabled;
75
76 if (front.has_value()) {
77 des.frontFaceStencil = ToMTLStencilDescriptor(front.value());
78 }
79 if (back.has_value()) {
80 des.backFaceStencil = ToMTLStencilDescriptor(back.value());
81 }
82
83 return des;
84 }

References impeller::DepthAttachmentDescriptor::depth_compare, kAlways, ToMTLCompareFunction(), and ToMTLStencilDescriptor().

Referenced by CreateDepthStencilDescriptor().

## ◆ ToMTLFunctionType()

static MTLFunctionType impeller::ToMTLFunctionType | ( | ShaderStage | stage | ) |
| static

Definition at line 28 of file shader_library_mtl.mm.

28 {
29 switch (stage) {
30 case ShaderStage::kVertex:
31 return MTLFunctionTypeVertex;
32 case ShaderStage::kFragment:
33 return MTLFunctionTypeFragment;
34 case ShaderStage::kUnknown:
35 case ShaderStage::kCompute:
36 return MTLFunctionTypeKernel;
37 }
38 FML_UNREACHABLE();
39 }

References kCompute, kFragment, kUnknown, and kVertex.

## ◆ ToMTLIndexType()

constexpr MTLIndexType impeller::ToMTLIndexType | ( | IndexType | type | ) |
| constexpr

Definition at line 177 of file formats_mtl.h.

177 {
178 switch (type) {
179 case IndexType::k16bit:
180 return MTLIndexTypeUInt16;
181 default:
182 return MTLIndexTypeUInt32;
183 }
184 }

References k16bit.

## ◆ ToMTLLoadAction()

constexpr MTLLoadAction impeller::ToMTLLoadAction | ( | LoadAction | action | ) |
| constexpr

Definition at line 279 of file formats_mtl.h.

279 {
280 switch (action) {
281 case LoadAction::kDontCare:
282 return MTLLoadActionDontCare;
283 case LoadAction::kLoad:
284 return MTLLoadActionLoad;
285 case LoadAction::kClear:
286 return MTLLoadActionClear;
287 }
288
289 return MTLLoadActionDontCare;
290 }

References kClear, kDontCare, and kLoad.

Referenced by ConfigureAttachment().

## ◆ ToMTLPixelFormat()

constexpr MTLPixelFormat impeller::ToMTLPixelFormat | ( | PixelFormat | format | ) |
| constexpr

Definition at line 77 of file formats_mtl.h.

77 {
78 switch (format) {
79 case PixelFormat::kUnknown:
80 return MTLPixelFormatInvalid;
81 case PixelFormat::kA8UNormInt:
82 return MTLPixelFormatA8Unorm;
83 case PixelFormat::kR8UNormInt:
84 return MTLPixelFormatR8Unorm;
85 case PixelFormat::kR8G8UNormInt:
86 return MTLPixelFormatRG8Unorm;
87 case PixelFormat::kB8G8R8A8UNormInt:
88 return MTLPixelFormatBGRA8Unorm;
89 case PixelFormat::kB8G8R8A8UNormIntSRGB:
90 return MTLPixelFormatBGRA8Unorm_sRGB;
91 case PixelFormat::kR8G8B8A8UNormInt:
92 return MTLPixelFormatRGBA8Unorm;
93 case PixelFormat::kR8G8B8A8UNormIntSRGB:
94 return MTLPixelFormatRGBA8Unorm_sRGB;
95 case PixelFormat::kR32G32B32A32Float:
96 return MTLPixelFormatRGBA32Float;
97 case PixelFormat::kR16G16B16A16Float:
98 return MTLPixelFormatRGBA16Float;
99 case PixelFormat::kS8UInt:
100 return MTLPixelFormatStencil8;
101 case PixelFormat::kD24UnormS8Uint:
102 return SafeMTLPixelFormatDepth24Unorm_Stencil8();
103 case PixelFormat::kD32FloatS8UInt:
104 return MTLPixelFormatDepth32Float_Stencil8;
105 case PixelFormat::kB10G10R10XRSRGB:
106 return SafeMTLPixelFormatBGR10_XR_sRGB();
107 case PixelFormat::kB10G10R10XR:
108 return SafeMTLPixelFormatBGR10_XR();
109 case PixelFormat::kB10G10R10A10XR:
110 return SafeMTLPixelFormatBGRA10_XR();
111 }
112 return MTLPixelFormatInvalid;
113 };

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, kUnknown, SafeMTLPixelFormatBGR10_XR(), SafeMTLPixelFormatBGR10_XR_sRGB(), SafeMTLPixelFormatBGRA10_XR(), and SafeMTLPixelFormatDepth24Unorm_Stencil8().

Referenced by GetMTLRenderPipelineDescriptor(), impeller::PlaygroundImplMTL::PlaygroundImplMTL(), impeller::testing::TEST(), ToMTLRenderPipelineColorAttachmentDescriptor(), and ToMTLTextureDescriptor().

## ◆ ToMTLPrimitiveType()

constexpr MTLPrimitiveType impeller::ToMTLPrimitiveType | ( | PrimitiveType | type | ) |
| constexpr

Definition at line 151 of file formats_mtl.h.

151 {
152 switch (type) {
153 case PrimitiveType::kTriangle:
154 return MTLPrimitiveTypeTriangle;
155 case PrimitiveType::kTriangleStrip:
156 return MTLPrimitiveTypeTriangleStrip;
157 case PrimitiveType::kLine:
158 return MTLPrimitiveTypeLine;
159 case PrimitiveType::kLineStrip:
160 return MTLPrimitiveTypeLineStrip;
161 case PrimitiveType::kPoint:
162 return MTLPrimitiveTypePoint;
163 }
164 return MTLPrimitiveTypePoint;
165 }

References kLine, kLineStrip, kPoint, kTriangle, and kTriangleStrip.

## ◆ ToMTLRenderPassDescriptor()

static MTLRenderPassDescriptor* impeller::ToMTLRenderPassDescriptor | ( | const RenderTarget & | desc | ) |
| static

Definition at line 103 of file render_pass_mtl.mm.

104 {
105 auto result = [MTLRenderPassDescriptor renderPassDescriptor];
106
107 const auto& colors = desc.GetColorAttachments();
108
109 for (const auto& color : colors) {
110 if (!ConfigureColorAttachment(color.second,
111 result.colorAttachments[color.first])) {
112 VALIDATION_LOG << "Could not configure color attachment at index "
113 << color.first;
114 return nil;
115 }
116 }
117
118 const auto& depth = desc.GetDepthAttachment();
119
120 if (depth.has_value() &&
121 !ConfigureDepthAttachment(depth.value(), result.depthAttachment)) {
122 VALIDATION_LOG << "Could not configure depth attachment.";
123 return nil;
124 }
125
126 const auto& stencil = desc.GetStencilAttachment();
127
128 if (stencil.has_value() &&
129 !ConfigureStencilAttachment(stencil.value(), result.stencilAttachment)) {
130 VALIDATION_LOG << "Could not configure stencil attachment.";
131 return nil;
132 }
133
134 return result;
135 }

References ConfigureColorAttachment(), ConfigureDepthAttachment(), ConfigureStencilAttachment(), impeller::RenderTarget::GetColorAttachments(), impeller::RenderTarget::GetDepthAttachment(), impeller::RenderTarget::GetStencilAttachment(), and VALIDATION_LOG.

## ◆ ToMTLRenderPipelineColorAttachmentDescriptor()

MTLRenderPipelineColorAttachmentDescriptor * impeller::ToMTLRenderPipelineColorAttachmentDescriptor | ( | ColorAttachmentDescriptor | descriptor | ) |

Definition at line 15 of file formats_mtl.mm.

16 {
17 auto des = [[MTLRenderPipelineColorAttachmentDescriptor alloc] init];
18 des.pixelFormat = ToMTLPixelFormat(descriptor.format);
19
20 des.blendingEnabled = descriptor.blending_enabled;
21
22 des.sourceRGBBlendFactor =
23 ToMTLBlendFactor(descriptor.src_color_blend_factor);
24 des.rgbBlendOperation = ToMTLBlendOperation(descriptor.color_blend_op);
25 des.destinationRGBBlendFactor =
26 ToMTLBlendFactor(descriptor.dst_color_blend_factor);
27
28 des.sourceAlphaBlendFactor =
29 ToMTLBlendFactor(descriptor.src_alpha_blend_factor);
30 des.alphaBlendOperation = ToMTLBlendOperation(descriptor.alpha_blend_op);
31 des.destinationAlphaBlendFactor =
32 ToMTLBlendFactor(descriptor.dst_alpha_blend_factor);
33
34 des.writeMask = ToMTLColorWriteMask(descriptor.write_mask);
35 return des;
36 }

References impeller::ColorAttachmentDescriptor::alpha_blend_op, impeller::ColorAttachmentDescriptor::blending_enabled, impeller::ColorAttachmentDescriptor::color_blend_op, impeller::ColorAttachmentDescriptor::dst_alpha_blend_factor, impeller::ColorAttachmentDescriptor::dst_color_blend_factor, impeller::ColorAttachmentDescriptor::format, impeller::ColorAttachmentDescriptor::src_alpha_blend_factor, impeller::ColorAttachmentDescriptor::src_color_blend_factor, ToMTLBlendFactor(), ToMTLBlendOperation(), ToMTLColorWriteMask(), ToMTLPixelFormat(), and impeller::ColorAttachmentDescriptor::write_mask.

Referenced by GetMTLRenderPipelineDescriptor().

## ◆ ToMTLResourceOptions()

static MTLResourceOptions impeller::ToMTLResourceOptions | ( | StorageMode | type,
|  | bool | supports_memoryless_targets,
|  | bool | supports_uma
| ) |  |
| static

Definition at line 111 of file allocator_mtl.mm.

113 {
114 switch (type) {
115 case StorageMode::kHostVisible:
116 #if FML_OS_IOS
117 return MTLResourceStorageModeShared;
118 #else
119 if (supports_uma) {
120 return MTLResourceStorageModeShared;
121 } else {
122 return MTLResourceStorageModeManaged;
123 }
124 #endif
125 case StorageMode::kDevicePrivate:
126 return MTLResourceStorageModePrivate;
127 case StorageMode::kDeviceTransient:
128 if (supports_memoryless_targets) {
129 // Device may support but the OS has not been updated.
130 if (@available(macOS 11.0, *)) {
131 return MTLResourceStorageModeMemoryless;
132 } else {
133 return MTLResourceStorageModePrivate;
134 }
135 } else {
136 return MTLResourceStorageModePrivate;
137 }
138 FML_UNREACHABLE();
139 }
140 FML_UNREACHABLE();
141 }

## ◆ ToMTLSamplerAddressMode()

constexpr MTLSamplerAddressMode impeller::ToMTLSamplerAddressMode | ( | SamplerAddressMode | mode | ) |
| constexpr

Definition at line 357 of file formats_mtl.h.

358 {
359 switch (mode) {
360 case SamplerAddressMode::kClampToEdge:
361 return MTLSamplerAddressModeClampToEdge;
362 case SamplerAddressMode::kRepeat:
363 return MTLSamplerAddressModeRepeat;
364 case SamplerAddressMode::kMirror:
365 return MTLSamplerAddressModeMirrorRepeat;
366 case SamplerAddressMode::kDecal:
367 return MTLSamplerAddressModeClampToZero;
368 }
369 return MTLSamplerAddressModeClampToEdge;
370 }

References kClampToEdge, kDecal, kMirror, and kRepeat.

## ◆ ToMTLSamplerMinMagFilter()

constexpr MTLSamplerMinMagFilter impeller::ToMTLSamplerMinMagFilter | ( | MinMagFilter | filter | ) |
| constexpr

Definition at line 337 of file formats_mtl.h.

337 {
338 switch (filter) {
339 case MinMagFilter::kNearest:
340 return MTLSamplerMinMagFilterNearest;
341 case MinMagFilter::kLinear:
342 return MTLSamplerMinMagFilterLinear;
343 }
344 return MTLSamplerMinMagFilterNearest;
345 }

References kLinear, and kNearest.

## ◆ ToMTLSamplerMipFilter()

constexpr MTLSamplerMipFilter impeller::ToMTLSamplerMipFilter | ( | MipFilter | filter | ) |
| constexpr

Definition at line 347 of file formats_mtl.h.

347 {
348 switch (filter) {
349 case MipFilter::kNearest:
350 return MTLSamplerMipFilterNearest;
351 case MipFilter::kLinear:
352 return MTLSamplerMipFilterLinear;
353 }
354 return MTLSamplerMipFilterNotMipmapped;
355 }

References kLinear, and kNearest.

## ◆ ToMTLStencilDescriptor()

MTLStencilDescriptor* impeller::ToMTLStencilDescriptor | ( | const StencilAttachmentDescriptor & | descriptor | ) |

Definition at line 38 of file formats_mtl.mm.

39 {
40 auto des = [[MTLStencilDescriptor alloc] init];
41 des.stencilCompareFunction = ToMTLCompareFunction(descriptor.stencil_compare);
42 des.stencilFailureOperation =
43 ToMTLStencilOperation(descriptor.stencil_failure);
44 des.depthFailureOperation = ToMTLStencilOperation(descriptor.depth_failure);
45 des.depthStencilPassOperation =
46 ToMTLStencilOperation(descriptor.depth_stencil_pass);
47
48 des.readMask = descriptor.read_mask;
49 des.writeMask = descriptor.write_mask;
50
51 return des;
52 }

References impeller::StencilAttachmentDescriptor::depth_failure, impeller::StencilAttachmentDescriptor::depth_stencil_pass, impeller::StencilAttachmentDescriptor::read_mask, impeller::StencilAttachmentDescriptor::stencil_compare, impeller::StencilAttachmentDescriptor::stencil_failure, ToMTLCompareFunction(), ToMTLStencilOperation(), and impeller::StencilAttachmentDescriptor::write_mask.

Referenced by ToMTLDepthStencilDescriptor().

## ◆ ToMTLStencilOperation()

constexpr MTLStencilOperation impeller::ToMTLStencilOperation | ( | StencilOperation | op | ) |
| constexpr

Definition at line 257 of file formats_mtl.h.

257 {
258 switch (op) {
259 case StencilOperation::kKeep:
260 return MTLStencilOperationKeep;
261 case StencilOperation::kZero:
262 return MTLStencilOperationZero;
263 case StencilOperation::kSetToReferenceValue:
264 return MTLStencilOperationReplace;
265 case StencilOperation::kIncrementClamp:
266 return MTLStencilOperationIncrementClamp;
267 case StencilOperation::kDecrementClamp:
268 return MTLStencilOperationDecrementClamp;
269 case StencilOperation::kInvert:
270 return MTLStencilOperationInvert;
271 case StencilOperation::kIncrementWrap:
272 return MTLStencilOperationIncrementWrap;
273 case StencilOperation::kDecrementWrap:
274 return MTLStencilOperationDecrementWrap;
275 }
276 return MTLStencilOperationKeep;
277 };

References kDecrementClamp, kDecrementWrap, kIncrementClamp, kIncrementWrap, kInvert, kKeep, kSetToReferenceValue, and kZero.

Referenced by ToMTLStencilDescriptor().

## ◆ ToMTLStorageMode()

static MTLStorageMode impeller::ToMTLStorageMode | ( | StorageMode | mode,
|  | bool | supports_memoryless_targets,
|  | bool | supports_uma
| ) |  |
| static

Definition at line 143 of file allocator_mtl.mm.

145 {
146 switch (mode) {
147 case StorageMode::kHostVisible:
148 #if FML_OS_IOS
149 return MTLStorageModeShared;
150 #else
151 if (supports_uma) {
152 return MTLStorageModeShared;
153 } else {
154 return MTLStorageModeManaged;
155 }
156 #endif
157 case StorageMode::kDevicePrivate:
158 return MTLStorageModePrivate;
159 case StorageMode::kDeviceTransient:
160 if (supports_memoryless_targets) {
161 // Device may support but the OS has not been updated.
162 if (@available(macOS 11.0, *)) {
163 return MTLStorageModeMemoryless;
164 } else {
165 return MTLStorageModePrivate;
166 }
167 } else {
168 return MTLStorageModePrivate;
169 }
170 FML_UNREACHABLE();
171 }
172 FML_UNREACHABLE();
173 }

## ◆ ToMTLStoreAction()

constexpr MTLStoreAction impeller::ToMTLStoreAction | ( | StoreAction | action | ) |
| constexpr

Definition at line 307 of file formats_mtl.h.

307 {
308 switch (action) {
309 case StoreAction::kDontCare:
310 return MTLStoreActionDontCare;
311 case StoreAction::kStore:
312 return MTLStoreActionStore;
313 case StoreAction::kMultisampleResolve:
314 return MTLStoreActionMultisampleResolve;
315 case StoreAction::kStoreAndMultisampleResolve:
316 return MTLStoreActionStoreAndMultisampleResolve;
317 }
318 return MTLStoreActionDontCare;
319 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

Referenced by ConfigureAttachment().

## ◆ ToMTLTextureDescriptor()

MTLTextureDescriptor * impeller::ToMTLTextureDescriptor | ( | const TextureDescriptor & | desc | ) |

Definition at line 86 of file formats_mtl.mm.

86 {
87 if (!desc.IsValid()) {
88 return nil;
89 }
90 auto mtl_desc = [[MTLTextureDescriptor alloc] init];
91 mtl_desc.textureType = ToMTLTextureType(desc.type);
92 mtl_desc.pixelFormat = ToMTLPixelFormat(desc.format);
93 mtl_desc.sampleCount = static_cast<NSUInteger>(desc.sample_count);
94 mtl_desc.width = desc.size.width;
95 mtl_desc.height = desc.size.height;
96 mtl_desc.mipmapLevelCount = desc.mip_count;
97 mtl_desc.usage = MTLTextureUsageUnknown;
98 if (desc.usage & static_cast<TextureUsageMask>(TextureUsage::kUnknown)) {
99 mtl_desc.usage |= MTLTextureUsageUnknown;
100 }
101 if (desc.usage & static_cast<TextureUsageMask>(TextureUsage::kShaderRead)) {
102 mtl_desc.usage |= MTLTextureUsageShaderRead;
103 }
104 if (desc.usage & static_cast<TextureUsageMask>(TextureUsage::kShaderWrite)) {
105 mtl_desc.usage |= MTLTextureUsageShaderWrite;
106 }
107 if (desc.usage & static_cast<TextureUsageMask>(TextureUsage::kRenderTarget)) {
108 mtl_desc.usage |= MTLTextureUsageRenderTarget;
109 }
110 return mtl_desc;
111 }

References impeller::TextureDescriptor::format, impeller::TSize< T >::height, impeller::TextureDescriptor::IsValid(), kRenderTarget, kShaderRead, kShaderWrite, kUnknown, impeller::TextureDescriptor::mip_count, impeller::TextureDescriptor::sample_count, impeller::TextureDescriptor::size, ToMTLPixelFormat(), ToMTLTextureType(), impeller::TextureDescriptor::type, impeller::TextureDescriptor::usage, and impeller::TSize< T >::width.

## ◆ ToMTLTextureType()

constexpr MTLTextureType impeller::ToMTLTextureType | ( | TextureType | type | ) |
| constexpr

Definition at line 376 of file formats_mtl.h.

376 {
377 switch (type) {
378 case TextureType::kTexture2D:
379 return MTLTextureType2D;
380 case TextureType::kTexture2DMultisample:
381 return MTLTextureType2DMultisample;
382 case TextureType::kTextureCube:
383 return MTLTextureTypeCube;
384 case TextureType::kTextureExternalOES:
385 VALIDATION_LOG
386 << "kTextureExternalOES can not be used with the Metal backend.";
387 }
388 return MTLTextureType2D;
389 }

References kTexture2D, kTexture2DMultisample, kTextureCube, kTextureExternalOES, and VALIDATION_LOG.

Referenced by ToMTLTextureDescriptor().

## ◆ ToMTLTriangleFillMode()

constexpr MTLTriangleFillMode impeller::ToMTLTriangleFillMode | ( | PolygonMode | mode | ) |
| constexpr

Definition at line 167 of file formats_mtl.h.

167 {
168 switch (mode) {
169 case PolygonMode::kFill:
170 return MTLTriangleFillModeFill;
171 case PolygonMode::kLine:
172 return MTLTriangleFillModeLines;
173 }
174 return MTLTriangleFillModeFill;
175 }

References kFill, and kLine.

## ◆ ToParam() [1/2]

static GLint impeller::ToParam | ( | MinMagFilter | minmag_filter,
|  | std::optional< MipFilter > | mip_filter = `std::nullopt`
| ) |  |
| static

Definition at line 25 of file sampler_gles.cc.

26 {
27 if (!mip_filter.has_value()) {
28 switch (minmag_filter) {
29 case MinMagFilter::kNearest:
30 return GL_NEAREST;
31 case MinMagFilter::kLinear:
32 return GL_LINEAR;
33 }
34 FML_UNREACHABLE();
35 }
36
37 switch (mip_filter.value()) {
38 case MipFilter::kNearest:
39 switch (minmag_filter) {
40 case MinMagFilter::kNearest:
41 return GL_NEAREST_MIPMAP_NEAREST;
42 case MinMagFilter::kLinear:
43 return GL_LINEAR_MIPMAP_NEAREST;
44 }
45 case MipFilter::kLinear:
46 switch (minmag_filter) {
47 case MinMagFilter::kNearest:
48 return GL_NEAREST_MIPMAP_LINEAR;
49 case MinMagFilter::kLinear:
50 return GL_LINEAR_MIPMAP_LINEAR;
51 }
52 }
53 FML_UNREACHABLE();
54 }

References kLinear, and kNearest.

## ◆ ToParam() [2/2]

static constexpr int impeller::ToParam | ( | size_t | index | ) |
| static constexpr

Definition at line 77 of file archive_statement.cc.

77 {
78 /*
79 * sqlite parameters begin from 1
80 */
81 return static_cast<int>(index + 1);
82 }

Referenced by impeller::SamplerGLES::ConfigureBoundTexture(), and impeller::ArchiveStatement::WriteValue().

## ◆ ToPixelFormat()

constexpr PixelFormat impeller::ToPixelFormat | ( | vk::Format | format | ) |
| constexpr

Definition at line 173 of file formats_vk.h.

173 {
174 switch (format) {
175 case vk::Format::eUndefined:
176 return PixelFormat::kUnknown;
177 case vk::Format::eR8G8B8A8Unorm:
178 return PixelFormat::kR8G8B8A8UNormInt;
179 case vk::Format::eR8G8B8A8Srgb:
180 return PixelFormat::kR8G8B8A8UNormIntSRGB;
181 case vk::Format::eB8G8R8A8Unorm:
182 return PixelFormat::kB8G8R8A8UNormInt;
183 case vk::Format::eB8G8R8A8Srgb:
184 return PixelFormat::kB8G8R8A8UNormIntSRGB;
185 case vk::Format::eR32G32B32A32Sfloat:
186 return PixelFormat::kR32G32B32A32Float;
187 case vk::Format::eR16G16B16A16Sfloat:
188 return PixelFormat::kR16G16B16A16Float;
189 case vk::Format::eS8Uint:
190 return PixelFormat::kS8UInt;
191 case vk::Format::eD24UnormS8Uint:
192 return PixelFormat::kD24UnormS8Uint;
193 case vk::Format::eD32SfloatS8Uint:
194 return PixelFormat::kD32FloatS8UInt;
195 case vk::Format::eR8Unorm:
196 return PixelFormat::kR8UNormInt;
197 case vk::Format::eR8G8Unorm:
198 return PixelFormat::kR8G8UNormInt;
199 default:
200 return PixelFormat::kUnknown;
201 }
202 }

References kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

## ◆ ToRect() [1/2]

static Rect impeller::ToRect | ( | const SkRect & | rect | ) |
| static

Definition at line 16 of file dl_vertices_geometry.cc.

16 {
17 return Rect::MakeLTRB(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
18 }

References impeller::TRect< Scalar >::MakeLTRB().

Referenced by MakeTextFrameFromTextBlobSkia(), and MakeVertices().

## ◆ ToRect() [2/2]

static Rect impeller::ToRect | ( | const SkRect & | rect | ) |
| static

Definition at line 35 of file text_frame_skia.cc.

35 {
36 return Rect::MakeLTRB(rect.fLeft, rect.fTop, rect.fRight, rect.fBottom);
37 }

References impeller::TRect< Scalar >::MakeLTRB().

## ◆ ToRenderBufferFormat()

static std::optional<GLenum> impeller::ToRenderBufferFormat | ( | PixelFormat | format | ) |
| static

Definition at line 280 of file texture_gles.cc.

280 {
281 switch (format) {
282 case PixelFormat::kB8G8R8A8UNormInt:
283 case PixelFormat::kR8G8B8A8UNormInt:
284 return GL_RGBA4;
285 case PixelFormat::kR32G32B32A32Float:
286 return GL_RGBA32F;
287 case PixelFormat::kR16G16B16A16Float:
288 return GL_RGBA16F;
289 case PixelFormat::kS8UInt:
290 return GL_STENCIL_INDEX8;
291 case PixelFormat::kD24UnormS8Uint:
292 return GL_DEPTH24_STENCIL8;
293 case PixelFormat::kD32FloatS8UInt:
294 return GL_DEPTH32F_STENCIL8;
295 case PixelFormat::kUnknown:
296 case PixelFormat::kA8UNormInt:
297 case PixelFormat::kR8UNormInt:
298 case PixelFormat::kR8G8UNormInt:
299 case PixelFormat::kR8G8B8A8UNormIntSRGB:
300 case PixelFormat::kB8G8R8A8UNormIntSRGB:
301 case PixelFormat::kB10G10R10XRSRGB:
302 case PixelFormat::kB10G10R10XR:
303 case PixelFormat::kB10G10R10A10XR:
304 return std::nullopt;
305 }
306 FML_UNREACHABLE();
307 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

## ◆ ToRenderingBackend()

constexpr fb::RenderingBackend impeller::ToRenderingBackend | ( | ArchiveRenderingBackend | backend | ) |
| constexpr

Definition at line 31 of file multi_arch_shader_archive_writer.cc.

32 {
33 switch (backend) {
34 case ArchiveRenderingBackend::kMetal:
35 return fb::RenderingBackend::kMetal;
36 case ArchiveRenderingBackend::kVulkan:
37 return fb::RenderingBackend::kVulkan;
38 case ArchiveRenderingBackend::kOpenGLES:
39 return fb::RenderingBackend::kOpenGLES;
40 }
41 FML_UNREACHABLE();
42 }

References kMetal, kOpenGLES, and kVulkan.

Referenced by impeller::MultiArchShaderArchiveWriter::CreateMapping().

## ◆ ToRGB()

static constexpr Vector3 impeller::ToRGB | ( | Color | color | ) |
| inline static constexpr

Definition at line 188 of file color.cc.

188 {
189 return {color.red, color.green, color.blue};
190 }

References impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

Referenced by DoColorBlend().

## ◆ ToSamplerDescriptor() [1/2]

static impeller::SamplerDescriptor impeller::ToSamplerDescriptor | ( | const flutter::DlFilterMode | options | ) |
| static

Definition at line 148 of file dl_dispatcher.cc.

149 {
150 impeller::SamplerDescriptor desc;
151 switch (options) {
152 case flutter::DlFilterMode::kNearest:
153 desc.min_filter = desc.mag_filter = impeller::MinMagFilter::kNearest;
154 desc.label = "Nearest Sampler";
155 break;
156 case flutter::DlFilterMode::kLinear:
157 desc.min_filter = desc.mag_filter = impeller::MinMagFilter::kLinear;
158 desc.label = "Linear Sampler";
159 break;
160 default:
161 break;
162 }
163 return desc;
164 }

References kLinear, kNearest, impeller::SamplerDescriptor::label, impeller::SamplerDescriptor::mag_filter, and impeller::SamplerDescriptor::min_filter.

## ◆ ToSamplerDescriptor() [2/2]

static impeller::SamplerDescriptor impeller::ToSamplerDescriptor | ( | const flutter::DlImageSampling | options | ) |
| static

Definition at line 124 of file dl_dispatcher.cc.

125 {
126 impeller::SamplerDescriptor desc;
127 switch (options) {
128 case flutter::DlImageSampling::kNearestNeighbor:
129 desc.min_filter = desc.mag_filter = impeller::MinMagFilter::kNearest;
130 desc.label = "Nearest Sampler";
131 break;
132 case flutter::DlImageSampling::kLinear:
133 // Impeller doesn't support cubic sampling, but linear is closer to correct
134 // than nearest for this case.
135 case flutter::DlImageSampling::kCubic:
136 desc.min_filter = desc.mag_filter = impeller::MinMagFilter::kLinear;
137 desc.label = "Linear Sampler";
138 break;
139 case flutter::DlImageSampling::kMipmapLinear:
140 desc.min_filter = desc.mag_filter = impeller::MinMagFilter::kLinear;
141 desc.mip_filter = impeller::MipFilter::kLinear;
142 desc.label = "Mipmap Linear Sampler";
143 break;
144 }
145 return desc;
146 }

References kLinear, kNearest, impeller::SamplerDescriptor::label, impeller::SamplerDescriptor::mag_filter, impeller::SamplerDescriptor::min_filter, and impeller::SamplerDescriptor::mip_filter.

Referenced by impeller::DlDispatcher::drawAtlas(), impeller::DlDispatcher::drawImageNine(), impeller::DlDispatcher::drawImageRect(), impeller::DlDispatcher::setColorSource(), and ToImageFilter().

## ◆ ToShaderStage() [1/4]

static ShaderStage impeller::ToShaderStage | ( | ArchiveShaderType | type | ) |
| static

Definition at line 18 of file shader_library_gles.cc.

18 {
19 switch (type) {
20 case ArchiveShaderType::kVertex:
21 return ShaderStage::kVertex;
22 case ArchiveShaderType::kFragment:
23 return ShaderStage::kFragment;
24 case ArchiveShaderType::kCompute:
25 return ShaderStage::kCompute;
26 }
27 FML_UNREACHABLE();
28 }

References kCompute, kFragment, and kVertex.

## ◆ ToShaderStage() [2/4]

static ShaderStage impeller::ToShaderStage | ( | ArchiveShaderType | type | ) |
| static

Definition at line 18 of file shader_library_vk.cc.

18 {
19 switch (type) {
20 case ArchiveShaderType::kVertex:
21 return ShaderStage::kVertex;
22 case ArchiveShaderType::kFragment:
23 return ShaderStage::kFragment;
24 case ArchiveShaderType::kCompute:
25 return ShaderStage::kCompute;
26 }
27 FML_UNREACHABLE();
28 }

References kCompute, kFragment, and kVertex.

## ◆ ToShaderStage() [3/4]

static RuntimeShaderStage impeller::ToShaderStage | ( | fb::Stage | stage | ) |
| static

Definition at line 49 of file runtime_stage.cc.

49 {
50 switch (stage) {
51 case fb::Stage::kVertex:
52 return RuntimeShaderStage::kVertex;
53 case fb::Stage::kFragment:
54 return RuntimeShaderStage::kFragment;
55 case fb::Stage::kCompute:
56 return RuntimeShaderStage::kCompute;
57 }
58 FML_UNREACHABLE();
59 }

References kCompute, kFragment, and kVertex.

## ◆ ToShaderStage() [4/4]

constexpr ShaderStage impeller::ToShaderStage | ( | RuntimeShaderStage | stage | ) |
| constexpr

Definition at line 29 of file shader_types.h.

29 {
30 switch (stage) {
31 case RuntimeShaderStage::kVertex:
32 return ShaderStage::kVertex;
33 case RuntimeShaderStage::kFragment:
34 return ShaderStage::kFragment;
35 case RuntimeShaderStage::kCompute:
36 return ShaderStage::kCompute;
37 }
38 FML_UNREACHABLE();
39 }

References kCompute, kFragment, and kVertex.

Referenced by impeller::RuntimeStagePlayground::RegisterStage(), impeller::RuntimeEffectContents::Render(), impeller::RuntimeStage::RuntimeStage(), and impeller::testing::TEST_P().

## ◆ ToShaderType()

constexpr ArchiveShaderType impeller::ToShaderType | ( | fb::Stage | stage | ) |
| constexpr

Definition at line 16 of file shader_archive.cc.

16 {
17 switch (stage) {
18 case fb::Stage::kVertex:
19 return ArchiveShaderType::kVertex;
20 case fb::Stage::kFragment:
21 return ArchiveShaderType::kFragment;
22 case fb::Stage::kCompute:
23 return ArchiveShaderType::kCompute;
24 }
25 FML_UNREACHABLE();
26 }

References kCompute, kFragment, and kVertex.

## ◆ ToStage()

constexpr fb::Stage impeller::ToStage | ( | ArchiveShaderType | type | ) |
| constexpr

Definition at line 86 of file shader_archive_writer.cc.

86 {
87 switch (type) {
88 case ArchiveShaderType::kVertex:
89 return fb::Stage::kVertex;
90 case ArchiveShaderType::kFragment:
91 return fb::Stage::kFragment;
92 case ArchiveShaderType::kCompute:
93 return fb::Stage::kCompute;
94 }
95 FML_UNREACHABLE();
96 }

References kCompute, kFragment, and kVertex.

Referenced by impeller::ShaderArchiveWriter::CreateMapping().

## ◆ ToStencilOp()

constexpr GLenum impeller::ToStencilOp | ( | StencilOperation | op | ) |
| constexpr

Definition at line 47 of file formats_gles.h.

47 {
48 switch (op) {
49 case StencilOperation::kKeep:
50 return GL_KEEP;
51 case StencilOperation::kZero:
52 return GL_ZERO;
53 case StencilOperation::kSetToReferenceValue:
54 return GL_REPLACE;
55 case StencilOperation::kIncrementClamp:
56 return GL_INCR;
57 case StencilOperation::kDecrementClamp:
58 return GL_DECR;
59 case StencilOperation::kInvert:
60 return GL_INVERT;
61 case StencilOperation::kIncrementWrap:
62 return GL_INCR_WRAP;
63 case StencilOperation::kDecrementWrap:
64 return GL_DECR_WRAP;
65 }
66 FML_UNREACHABLE();
67 }

References kDecrementClamp, kDecrementWrap, kIncrementClamp, kIncrementWrap, kInvert, kKeep, kSetToReferenceValue, and kZero.

Referenced by ConfigureStencil().

## ◆ ToStyle()

static Paint::Style impeller::ToStyle | ( | flutter::DlDrawStyle | style | ) |
| static

Definition at line 182 of file dl_dispatcher.cc.

182 {
183 switch (style) {
184 case flutter::DlDrawStyle::kFill:
185 return Paint::Style::kFill;
186 case flutter::DlDrawStyle::kStroke:
187 return Paint::Style::kStroke;
188 case flutter::DlDrawStyle::kStrokeAndFill:
189 UNIMPLEMENTED;
190 break;
191 }
192 return Paint::Style::kFill;
193 }

References impeller::Paint::kFill, impeller::Paint::kStroke, and UNIMPLEMENTED.

Referenced by impeller::DlDispatcher::setDrawStyle().

## ◆ ToTarget()

static GLenum impeller::ToTarget | ( | DeviceBufferGLES::BindingType | type | ) |
| static

Definition at line 60 of file device_buffer_gles.cc.

60 {
61 switch (type) {
62 case DeviceBufferGLES::BindingType::kArrayBuffer:
63 return GL_ARRAY_BUFFER;
64 case DeviceBufferGLES::BindingType::kElementArrayBuffer:
65 return GL_ELEMENT_ARRAY_BUFFER;
66 }
67 FML_UNREACHABLE();
68 }

References impeller::DeviceBufferGLES::kArrayBuffer, and impeller::DeviceBufferGLES::kElementArrayBuffer.

Referenced by impeller::DeviceBufferGLES::BindAndUploadDataIfNecessary().

## ◆ ToTessWindingRule()

static int impeller::ToTessWindingRule | ( | FillType | fill_type | ) |
| static

Definition at line 48 of file tessellator.cc.

48 {
49 switch (fill_type) {
50 case FillType::kOdd:
51 return TESS_WINDING_ODD;
52 case FillType::kNonZero:
53 return TESS_WINDING_NONZERO;
54 case FillType::kPositive:
55 return TESS_WINDING_POSITIVE;
56 case FillType::kNegative:
57 return TESS_WINDING_NEGATIVE;
58 case FillType::kAbsGeqTwo:
59 return TESS_WINDING_ABS_GEQ_TWO;
60 }
61 return TESS_WINDING_ODD;
62 }

References kAbsGeqTwo, kNegative, kNonZero, kOdd, and kPositive.

Referenced by impeller::Tessellator::Tessellate().

## ◆ ToTextureTarget()

constexpr std::optional<GLenum> impeller::ToTextureTarget | ( | TextureType | type | ) |
| constexpr

Definition at line 184 of file formats_gles.h.

184 {
185 switch (type) {
186 case TextureType::kTexture2D:
187 return GL_TEXTURE_2D;
188 case TextureType::kTexture2DMultisample:
189 return GL_TEXTURE_2D;
190 case TextureType::kTextureCube:
191 return GL_TEXTURE_CUBE_MAP;
192 case TextureType::kTextureExternalOES:
193 return GL_TEXTURE_EXTERNAL_OES;
194 }
195 FML_UNREACHABLE();
196 }

References kTexture2D, kTexture2DMultisample, kTextureCube, and kTextureExternalOES.

Referenced by impeller::TextureGLES::Bind(), and impeller::SamplerGLES::ConfigureBoundTexture().

## ◆ ToTextureType()

constexpr GLenum impeller::ToTextureType | ( | TextureType | type | ) |
| constexpr

Definition at line 170 of file formats_gles.h.

170 {
171 switch (type) {
172 case TextureType::kTexture2D:
173 return GL_TEXTURE_2D;
174 case TextureType::kTexture2DMultisample:
175 return GL_TEXTURE_2D_MULTISAMPLE;
176 case TextureType::kTextureCube:
177 return GL_TEXTURE_CUBE_MAP;
178 case TextureType::kTextureExternalOES:
179 return GL_TEXTURE_EXTERNAL_OES;
180 }
181 FML_UNREACHABLE();
182 }

References kTexture2D, kTexture2DMultisample, kTextureCube, and kTextureExternalOES.

Referenced by impeller::TextureGLES::GenerateMipmap().

## ◆ ToTileMode()

static Entity::TileMode impeller::ToTileMode | ( | flutter::DlTileMode | tile_mode | ) |
| static

Definition at line 111 of file dl_dispatcher.cc.

111 {
112 switch (tile_mode) {
113 case flutter::DlTileMode::kClamp:
114 return Entity::TileMode::kClamp;
115 case flutter::DlTileMode::kRepeat:
116 return Entity::TileMode::kRepeat;
117 case flutter::DlTileMode::kMirror:
118 return Entity::TileMode::kMirror;
119 case flutter::DlTileMode::kDecal:
120 return Entity::TileMode::kDecal;
121 }
122 }

References impeller::Entity::kClamp, impeller::Entity::kDecal, impeller::Entity::kMirror, and impeller::Entity::kRepeat.

Referenced by impeller::DlDispatcher::setColorSource(), and ToImageFilter().

## ◆ ToType()

static RuntimeUniformType impeller::ToType | ( | fb::UniformDataType | type | ) |
| static

Definition at line 17 of file runtime_stage.cc.

17 {
18 switch (type) {
19 case fb::UniformDataType::kBoolean:
20 return RuntimeUniformType::kBoolean;
21 case fb::UniformDataType::kSignedByte:
22 return RuntimeUniformType::kSignedByte;
23 case fb::UniformDataType::kUnsignedByte:
24 return RuntimeUniformType::kUnsignedByte;
25 case fb::UniformDataType::kSignedShort:
26 return RuntimeUniformType::kSignedShort;
27 case fb::UniformDataType::kUnsignedShort:
28 return RuntimeUniformType::kUnsignedShort;
29 case fb::UniformDataType::kSignedInt:
30 return RuntimeUniformType::kSignedInt;
31 case fb::UniformDataType::kUnsignedInt:
32 return RuntimeUniformType::kUnsignedInt;
33 case fb::UniformDataType::kSignedInt64:
34 return RuntimeUniformType::kSignedInt64;
35 case fb::UniformDataType::kUnsignedInt64:
36 return RuntimeUniformType::kUnsignedInt64;
37 case fb::UniformDataType::kHalfFloat:
38 return RuntimeUniformType::kHalfFloat;
39 case fb::UniformDataType::kFloat:
40 return RuntimeUniformType::kFloat;
41 case fb::UniformDataType::kDouble:
42 return RuntimeUniformType::kDouble;
43 case fb::UniformDataType::kSampledImage:
44 return RuntimeUniformType::kSampledImage;
45 }
46 FML_UNREACHABLE();
47 }

References kBoolean, kDouble, kFloat, kHalfFloat, kSampledImage, kSignedByte, kSignedInt, kSignedInt64, kSignedShort, kUnsignedByte, kUnsignedInt, kUnsignedInt64, and kUnsignedShort.

Referenced by impeller::RuntimeStage::RuntimeStage().

## ◆ ToVector()

constexpr Vector4 impeller::ToVector | ( | Color | color | ) |
| inline constexpr

Definition at line 185 of file shader_types.h.

185 {
186 return {color.red, color.green, color.blue, color.alpha};
187 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

Referenced by impeller::TextContents::Render().

## ◆ ToVertexAttribType()

constexpr std::optional<GLenum> impeller::ToVertexAttribType | ( | ShaderType | type | ) |
| constexpr

Definition at line 139 of file formats_gles.h.

139 {
140 switch (type) {
141 case ShaderType::kSignedByte:
142 return GL_BYTE;
143 case ShaderType::kUnsignedByte:
144 return GL_UNSIGNED_BYTE;
145 case ShaderType::kSignedShort:
146 return GL_SHORT;
147 case ShaderType::kUnsignedShort:
148 return GL_UNSIGNED_SHORT;
149 case ShaderType::kFloat:
150 return GL_FLOAT;
151 case ShaderType::kUnknown:
152 case ShaderType::kVoid:
153 case ShaderType::kBoolean:
154 case ShaderType::kSignedInt:
155 case ShaderType::kUnsignedInt:
156 case ShaderType::kSignedInt64:
157 case ShaderType::kUnsignedInt64:
158 case ShaderType::kAtomicCounter:
159 case ShaderType::kHalfFloat:
160 case ShaderType::kDouble:
161 case ShaderType::kStruct:
162 case ShaderType::kImage:
163 case ShaderType::kSampledImage:
164 case ShaderType::kSampler:
165 return std::nullopt;
166 }
167 FML_UNREACHABLE();
168 }

References kAtomicCounter, kBoolean, kDouble, kFloat, kHalfFloat, kImage, kSampledImage, kSampler, kSignedByte, kSignedInt, kSignedInt64, kSignedShort, kStruct, kUnknown, kUnsignedByte, kUnsignedInt, kUnsignedInt64, kUnsignedShort, and kVoid.

Referenced by impeller::BufferBindingsGLES::RegisterVertexStageInput().

## ◆ ToVertexDescriptorFormat()

vk::Format impeller::ToVertexDescriptorFormat | ( | const ShaderStageIOSlot & | input | ) |

Definition at line 11 of file vertex_descriptor_vk.cc.

11 {
12 if (input.columns != 1) {
13 // All matrix types are unsupported as vertex inputs.
14 return vk::Format::eUndefined;
15 }
16
17 switch (input.type) {
18 case ShaderType::kFloat: {
19 if (input.bit_width == 8 * sizeof(float)) {
20 switch (input.vec_size) {
21 case 1:
22 return vk::Format::eR32Sfloat;
23 case 2:
24 return vk::Format::eR32G32Sfloat;
25 case 3:
26 return vk::Format::eR32G32B32Sfloat;
27 case 4:
28 return vk::Format::eR32G32B32A32Sfloat;
29 }
30 }
31 return vk::Format::eUndefined;
32 }
33 case ShaderType::kHalfFloat: {
34 if (input.bit_width == 8 * sizeof(float) / 2) {
35 switch (input.vec_size) {
36 case 1:
37 return vk::Format::eR16Sfloat;
38 case 2:
39 return vk::Format::eR16G16Sfloat;
40 case 3:
41 return vk::Format::eR16G16B16Sfloat;
42 case 4:
43 return vk::Format::eR16G16B16A16Sfloat;
44 }
45 }
46 return vk::Format::eUndefined;
47 }
48 case ShaderType::kDouble: {
49 // Unsupported.
50 return vk::Format::eUndefined;
51 }
52 case ShaderType::kBoolean: {
53 if (input.bit_width == 8 * sizeof(bool) && input.vec_size == 1) {
54 return vk::Format::eR8Uint;
55 }
56 return vk::Format::eUndefined;
57 }
58 case ShaderType::kSignedByte: {
59 if (input.bit_width == 8 * sizeof(char)) {
60 switch (input.vec_size) {
61 case 1:
62 return vk::Format::eR8Sint;
63 case 2:
64 return vk::Format::eR8G8Sint;
65 case 3:
66 return vk::Format::eR8G8B8Sint;
67 case 4:
68 return vk::Format::eR8G8B8A8Sint;
69 }
70 }
71 return vk::Format::eUndefined;
72 }
73 case ShaderType::kUnsignedByte: {
74 if (input.bit_width == 8 * sizeof(char)) {
75 switch (input.vec_size) {
76 case 1:
77 return vk::Format::eR8Uint;
78 case 2:
79 return vk::Format::eR8G8Uint;
80 case 3:
81 return vk::Format::eR8G8B8Uint;
82 case 4:
83 return vk::Format::eR8G8B8A8Uint;
84 }
85 }
86 return vk::Format::eUndefined;
87 }
88 case ShaderType::kSignedShort: {
89 if (input.bit_width == 8 * sizeof(int16_t)) {
90 switch (input.vec_size) {
91 case 1:
92 return vk::Format::eR16Sint;
93 case 2:
94 return vk::Format::eR16G16Sint;
95 case 3:
96 return vk::Format::eR16G16B16Sint;
97 case 4:
98 return vk::Format::eR16G16B16A16Sint;
99 }
100 }
101 return vk::Format::eUndefined;
102 }
103 case ShaderType::kUnsignedShort: {
104 if (input.bit_width == 8 * sizeof(uint16_t)) {
105 switch (input.vec_size) {
106 case 1:
107 return vk::Format::eR16Uint;
108 case 2:
109 return vk::Format::eR16G16Uint;
110 case 3:
111 return vk::Format::eR16G16B16Uint;
112 case 4:
113 return vk::Format::eR16G16B16A16Uint;
114 }
115 }
116 return vk::Format::eUndefined;
117 }
118 case ShaderType::kSignedInt: {
119 if (input.bit_width == 8 * sizeof(int32_t)) {
120 switch (input.vec_size) {
121 case 1:
122 return vk::Format::eR32Sint;
123 case 2:
124 return vk::Format::eR32G32Sint;
125 case 3:
126 return vk::Format::eR32G32B32Sint;
127 case 4:
128 return vk::Format::eR32G32B32A32Sint;
129 }
130 }
131 return vk::Format::eUndefined;
132 }
133 case ShaderType::kUnsignedInt: {
134 if (input.bit_width == 8 * sizeof(uint32_t)) {
135 switch (input.vec_size) {
136 case 1:
137 return vk::Format::eR32Uint;
138 case 2:
139 return vk::Format::eR32G32Uint;
140 case 3:
141 return vk::Format::eR32G32B32Uint;
142 case 4:
143 return vk::Format::eR32G32B32A32Uint;
144 }
145 }
146 return vk::Format::eUndefined;
147 }
148 case ShaderType::kSignedInt64: {
149 // Unsupported.
150 return vk::Format::eUndefined;
151 }
152 case ShaderType::kUnsignedInt64: {
153 // Unsupported.
154 return vk::Format::eUndefined;
155 }
156 case ShaderType::kAtomicCounter:
157 case ShaderType::kStruct:
158 case ShaderType::kImage:
159 case ShaderType::kSampledImage:
160 case ShaderType::kUnknown:
161 case ShaderType::kVoid:
162 case ShaderType::kSampler:
163 return vk::Format::eUndefined;
164 }
165 }

References impeller::ShaderStageIOSlot::bit_width, impeller::ShaderStageIOSlot::columns, kAtomicCounter, kBoolean, kDouble, kFloat, kHalfFloat, kImage, kSampledImage, kSampler, kSignedByte, kSignedInt, kSignedInt64, kSignedShort, kStruct, kUnknown, kUnsignedByte, kUnsignedInt, kUnsignedInt64, kUnsignedShort, kVoid, impeller::ShaderStageIOSlot::type, and impeller::ShaderStageIOSlot::vec_size.

## ◆ ToVertexMode()

static VerticesGeometry::VertexMode impeller::ToVertexMode | ( | flutter::DlVertexMode | mode | ) |
| static

Definition at line 20 of file dl_vertices_geometry.cc.

20 {
21 switch (mode) {
22 case flutter::DlVertexMode::kTriangles:
23 return VerticesGeometry::VertexMode::kTriangles;
24 case flutter::DlVertexMode::kTriangleStrip:
25 return VerticesGeometry::VertexMode::kTriangleStrip;
26 case flutter::DlVertexMode::kTriangleFan:
27 return VerticesGeometry::VertexMode::kTriangleFan;
28 };
29 }

References impeller::VerticesGeometry::kTriangleFan, impeller::VerticesGeometry::kTriangles, and impeller::VerticesGeometry::kTriangleStrip.

Referenced by MakeVertices().

## ◆ ToVKAttachmentLoadOp()

constexpr vk::AttachmentLoadOp impeller::ToVKAttachmentLoadOp | ( | LoadAction | load_action | ) |
| constexpr

Definition at line 303 of file formats_vk.h.

303 {
304 switch (load_action) {
305 case LoadAction::kLoad:
306 return vk::AttachmentLoadOp::eLoad;
307 case LoadAction::kClear:
308 return vk::AttachmentLoadOp::eClear;
309 case LoadAction::kDontCare:
310 return vk::AttachmentLoadOp::eDontCare;
311 }
312
313 FML_UNREACHABLE();
314 }

References kClear, kDontCare, and kLoad.

Referenced by CreateAttachmentDescription().

## ◆ ToVKAttachmentStoreOp()

constexpr vk::AttachmentStoreOp impeller::ToVKAttachmentStoreOp | ( | StoreAction | store_action | ) |
| constexpr

Definition at line 316 of file formats_vk.h.

317 {
318 switch (store_action) {
319 case StoreAction::kStore:
320 return vk::AttachmentStoreOp::eStore;
321 case StoreAction::kDontCare:
322 return vk::AttachmentStoreOp::eDontCare;
323 case StoreAction::kMultisampleResolve:
324 case StoreAction::kStoreAndMultisampleResolve:
325 return vk::AttachmentStoreOp::eDontCare;
326 }
327
328 FML_UNREACHABLE();
329 }

References kDontCare, kMultisampleResolve, kStore, and kStoreAndMultisampleResolve.

Referenced by CreateAttachmentDescription().

## ◆ ToVKBlendFactor()

constexpr vk::BlendFactor impeller::ToVKBlendFactor | ( | BlendFactor | factor | ) |
| constexpr

Definition at line 29 of file formats_vk.h.

29 {
30 switch (factor) {
31 case BlendFactor::kZero:
32 return vk::BlendFactor::eZero;
33 case BlendFactor::kOne:
34 return vk::BlendFactor::eOne;
35 case BlendFactor::kSourceColor:
36 return vk::BlendFactor::eSrcColor;
37 case BlendFactor::kOneMinusSourceColor:
38 return vk::BlendFactor::eOneMinusSrcColor;
39 case BlendFactor::kSourceAlpha:
40 return vk::BlendFactor::eSrcAlpha;
41 case BlendFactor::kOneMinusSourceAlpha:
42 return vk::BlendFactor::eOneMinusSrcAlpha;
43 case BlendFactor::kDestinationColor:
44 return vk::BlendFactor::eDstColor;
45 case BlendFactor::kOneMinusDestinationColor:
46 return vk::BlendFactor::eOneMinusDstColor;
47 case BlendFactor::kDestinationAlpha:
48 return vk::BlendFactor::eDstAlpha;
49 case BlendFactor::kOneMinusDestinationAlpha:
50 return vk::BlendFactor::eOneMinusDstAlpha;
51 case BlendFactor::kSourceAlphaSaturated:
52 return vk::BlendFactor::eSrcAlphaSaturate;
53 case BlendFactor::kBlendColor:
54 return vk::BlendFactor::eConstantColor;
55 case BlendFactor::kOneMinusBlendColor:
56 return vk::BlendFactor::eOneMinusConstantColor;
57 case BlendFactor::kBlendAlpha:
58 return vk::BlendFactor::eConstantAlpha;
59 case BlendFactor::kOneMinusBlendAlpha:
60 return vk::BlendFactor::eOneMinusConstantAlpha;
61 }
62 FML_UNREACHABLE();
63 }

References kBlendAlpha, kBlendColor, kDestinationAlpha, kDestinationColor, kOne, kOneMinusBlendAlpha, kOneMinusBlendColor, kOneMinusDestinationAlpha, kOneMinusDestinationColor, kOneMinusSourceAlpha, kOneMinusSourceColor, kSourceAlpha, kSourceAlphaSaturated, kSourceColor, and kZero.

Referenced by ToVKPipelineColorBlendAttachmentState().

## ◆ ToVKBlendOp()

constexpr vk::BlendOp impeller::ToVKBlendOp | ( | BlendOperation | op | ) |
| constexpr

Definition at line 65 of file formats_vk.h.

65 {
66 switch (op) {
67 case BlendOperation::kAdd:
68 return vk::BlendOp::eAdd;
69 case BlendOperation::kSubtract:
70 return vk::BlendOp::eSubtract;
71 case BlendOperation::kReverseSubtract:
72 return vk::BlendOp::eReverseSubtract;
73 }
74 FML_UNREACHABLE();
75 }

References kAdd, kReverseSubtract, and kSubtract.

Referenced by ToVKPipelineColorBlendAttachmentState().

## ◆ ToVKBufferMemoryPropertyFlags()

static constexpr vk::Flags<vk::MemoryPropertyFlagBits> impeller::ToVKBufferMemoryPropertyFlags | ( | StorageMode | mode | ) |
| static constexpr

Definition at line 20 of file allocator_vk.cc.

20 {
21 switch (mode) {
22 case StorageMode::kHostVisible:
23 return vk::MemoryPropertyFlagBits::eHostVisible;
24 case StorageMode::kDevicePrivate:
25 return vk::MemoryPropertyFlagBits::eDeviceLocal;
26 case StorageMode::kDeviceTransient:
27 return vk::MemoryPropertyFlagBits::eLazilyAllocated;
28 }
29 FML_UNREACHABLE();
30 }

References kDevicePrivate, kDeviceTransient, and kHostVisible.

Referenced by CreateBufferPool().

## ◆ ToVKColorComponentFlags()

constexpr vk::ColorComponentFlags impeller::ToVKColorComponentFlags | ( | std::underlying_type_t< ColorWriteMask > | type | ) |
| constexpr

Definition at line 77 of file formats_vk.h.

78 {
79 using UnderlyingType = decltype(type);
80
81 vk::ColorComponentFlags mask;
82
83 if (type & static_cast<UnderlyingType>(ColorWriteMask::kRed)) {
84 mask |= vk::ColorComponentFlagBits::eR;
85 }
86
87 if (type & static_cast<UnderlyingType>(ColorWriteMask::kGreen)) {
88 mask |= vk::ColorComponentFlagBits::eG;
89 }
90
91 if (type & static_cast<UnderlyingType>(ColorWriteMask::kBlue)) {
92 mask |= vk::ColorComponentFlagBits::eB;
93 }
94
95 if (type & static_cast<UnderlyingType>(ColorWriteMask::kAlpha)) {
96 mask |= vk::ColorComponentFlagBits::eA;
97 }
98
99 return mask;
100 }

References kAlpha, kBlue, kGreen, and kRed.

Referenced by ToVKPipelineColorBlendAttachmentState().

## ◆ ToVKCompareOp()

constexpr vk::CompareOp impeller::ToVKCompareOp | ( | CompareFunction | op | ) |
| constexpr

Definition at line 508 of file formats_vk.h.

508 {
509 switch (op) {
510 case CompareFunction::kNever:
511 return vk::CompareOp::eNever;
512 case CompareFunction::kAlways:
513 return vk::CompareOp::eAlways;
514 case CompareFunction::kLess:
515 return vk::CompareOp::eLess;
516 case CompareFunction::kEqual:
517 return vk::CompareOp::eEqual;
518 case CompareFunction::kLessEqual:
519 return vk::CompareOp::eLessOrEqual;
520 case CompareFunction::kGreater:
521 return vk::CompareOp::eGreater;
522 case CompareFunction::kNotEqual:
523 return vk::CompareOp::eNotEqual;
524 case CompareFunction::kGreaterEqual:
525 return vk::CompareOp::eGreaterOrEqual;
526 }
527 FML_UNREACHABLE();
528 }

References kAlways, kEqual, kGreater, kGreaterEqual, kLess, kLessEqual, kNever, and kNotEqual.

Referenced by ToVKPipelineDepthStencilStateCreateInfo(), and ToVKStencilOpState().

## ◆ ToVKCullModeFlags()

constexpr vk::CullModeFlags impeller::ToVKCullModeFlags | ( | CullMode | mode | ) |
| constexpr

Definition at line 496 of file formats_vk.h.

496 {
497 switch (mode) {
498 case CullMode::kNone:
499 return vk::CullModeFlagBits::eNone;
500 case CullMode::kFrontFace:
501 return vk::CullModeFlagBits::eFront;
502 case CullMode::kBackFace:
503 return vk::CullModeFlagBits::eBack;
504 }
505 FML_UNREACHABLE();
506 }

References kBackFace, kFrontFace, and kNone.

## ◆ ToVKDescriptorSetLayoutBinding()

constexpr vk::DescriptorSetLayoutBinding impeller::ToVKDescriptorSetLayoutBinding | ( | const DescriptorSetLayout & | layout | ) |
| constexpr

Definition at line 293 of file formats_vk.h.

294 {
295 vk::DescriptorSetLayoutBinding binding;
296 binding.binding = layout.binding;
297 binding.descriptorCount = 1u;
298 binding.descriptorType = ToVKDescriptorType(layout.descriptor_type);
299 binding.stageFlags = ToVkShaderStage(layout.shader_stage);
300 return binding;
301 }

References impeller::DescriptorSetLayout::binding, impeller::DescriptorSetLayout::descriptor_type, impeller::DescriptorSetLayout::shader_stage, ToVKDescriptorType(), and ToVkShaderStage().

## ◆ ToVKDescriptorType()

constexpr vk::DescriptorType impeller::ToVKDescriptorType | ( | DescriptorType | type | ) |
| constexpr

Definition at line 269 of file formats_vk.h.

269 {
270 switch (type) {
271 case DescriptorType::kSampledImage:
272 return vk::DescriptorType::eCombinedImageSampler;
273 break;
274 case DescriptorType::kUniformBuffer:
275 return vk::DescriptorType::eUniformBuffer;
276 break;
277 case DescriptorType::kStorageBuffer:
278 return vk::DescriptorType::eStorageBuffer;
279 break;
280 case DescriptorType::kImage:
281 return vk::DescriptorType::eSampledImage;
282 break;
283 case DescriptorType::kSampler:
284 return vk::DescriptorType::eSampler;
285 break;
286 case DescriptorType::kInputAttachment:
287 return vk::DescriptorType::eInputAttachment;
288 }
289
290 FML_UNREACHABLE();
291 }

References kImage, kInputAttachment, kSampledImage, kSampler, kStorageBuffer, and kUniformBuffer.

Referenced by BindBuffers(), and ToVKDescriptorSetLayoutBinding().

## ◆ ToVKFrontFace()

constexpr vk::FrontFace impeller::ToVKFrontFace | ( | WindingOrder | order | ) |
| constexpr

Definition at line 163 of file pipeline_library_vk.cc.

163 {
164 switch (order) {
165 case WindingOrder::kClockwise:
166 return vk::FrontFace::eClockwise;
167 case WindingOrder::kCounterClockwise:
168 return vk::FrontFace::eCounterClockwise;
169 }
170 FML_UNREACHABLE();
171 }

References kClockwise, and kCounterClockwise.

## ◆ ToVKImageAspectFlags()

constexpr vk::ImageAspectFlags impeller::ToVKImageAspectFlags | ( | PixelFormat | format | ) |
| constexpr

Definition at line 568 of file formats_vk.h.

568 {
569 switch (format) {
570 case PixelFormat::kUnknown:
571 case PixelFormat::kA8UNormInt:
572 case PixelFormat::kR8UNormInt:
573 case PixelFormat::kR8G8UNormInt:
574 case PixelFormat::kR8G8B8A8UNormInt:
575 case PixelFormat::kR8G8B8A8UNormIntSRGB:
576 case PixelFormat::kB8G8R8A8UNormInt:
577 case PixelFormat::kB8G8R8A8UNormIntSRGB:
578 case PixelFormat::kR32G32B32A32Float:
579 case PixelFormat::kR16G16B16A16Float:
580 case PixelFormat::kB10G10R10XR:
581 case PixelFormat::kB10G10R10XRSRGB:
582 case PixelFormat::kB10G10R10A10XR:
583 return vk::ImageAspectFlagBits::eColor;
584 case PixelFormat::kS8UInt:
585 return vk::ImageAspectFlagBits::eStencil;
586 case PixelFormat::kD24UnormS8Uint:
587 case PixelFormat::kD32FloatS8UInt:
588 return vk::ImageAspectFlagBits::eDepth |
589 vk::ImageAspectFlagBits::eStencil;
590 }
591 FML_UNREACHABLE();
592 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVKImageCreateFlags()

constexpr vk::ImageCreateFlags impeller::ToVKImageCreateFlags | ( | TextureType | type | ) |
| constexpr

Definition at line 622 of file formats_vk.h.

622 {
623 switch (type) {
624 case TextureType::kTexture2D:
625 case TextureType::kTexture2DMultisample:
626 return {};
627 case TextureType::kTextureCube:
628 return vk::ImageCreateFlagBits::eCubeCompatible;
629 case TextureType::kTextureExternalOES:
630 VALIDATION_LOG
631 << "kTextureExternalOES can not be used with the Vulkan backend.";
632 }
633 FML_UNREACHABLE();
634 }

References kTexture2D, kTexture2DMultisample, kTextureCube, kTextureExternalOES, and VALIDATION_LOG.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVKImageFormat()

constexpr vk::Format impeller::ToVKImageFormat | ( | PixelFormat | format | ) |
| constexpr

Definition at line 136 of file formats_vk.h.

136 {
137 switch (format) {
138 case PixelFormat::kUnknown:
139 case PixelFormat::kB10G10R10XR:
140 case PixelFormat::kB10G10R10A10XR:
141 case PixelFormat::kB10G10R10XRSRGB:
142 return vk::Format::eUndefined;
143 case PixelFormat::kA8UNormInt:
144 // TODO(csg): This is incorrect. Don't depend on swizzle support for GLES.
145 return vk::Format::eR8Unorm;
146 case PixelFormat::kR8G8B8A8UNormInt:
147 return vk::Format::eR8G8B8A8Unorm;
148 case PixelFormat::kR8G8B8A8UNormIntSRGB:
149 return vk::Format::eR8G8B8A8Srgb;
150 case PixelFormat::kB8G8R8A8UNormInt:
151 return vk::Format::eB8G8R8A8Unorm;
152 case PixelFormat::kB8G8R8A8UNormIntSRGB:
153 return vk::Format::eB8G8R8A8Srgb;
154 case PixelFormat::kR32G32B32A32Float:
155 return vk::Format::eR32G32B32A32Sfloat;
156 case PixelFormat::kR16G16B16A16Float:
157 return vk::Format::eR16G16B16A16Sfloat;
158 case PixelFormat::kS8UInt:
159 return vk::Format::eS8Uint;
160 case PixelFormat::kD24UnormS8Uint:
161 return vk::Format::eD24UnormS8Uint;
162 case PixelFormat::kD32FloatS8UInt:
163 return vk::Format::eD32SfloatS8Uint;
164 case PixelFormat::kR8UNormInt:
165 return vk::Format::eR8Unorm;
166 case PixelFormat::kR8G8UNormInt:
167 return vk::Format::eR8G8Unorm;
168 }
169
170 FML_UNREACHABLE();
171 }

References kA8UNormInt, kB10G10R10A10XR, kB10G10R10XR, kB10G10R10XRSRGB, kB8G8R8A8UNormInt, kB8G8R8A8UNormIntSRGB, kD24UnormS8Uint, kD32FloatS8UInt, kR16G16B16A16Float, kR32G32B32A32Float, kR8G8B8A8UNormInt, kR8G8B8A8UNormIntSRGB, kR8G8UNormInt, kR8UNormInt, kS8UInt, and kUnknown.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK(), ChooseSurfaceFormat(), CreateAttachmentDescription(), and impeller::SwapchainImageVK::SwapchainImageVK().

## ◆ ToVKImageUsageFlags()

static constexpr vk::ImageUsageFlags impeller::ToVKImageUsageFlags | ( | PixelFormat | format,
|  | TextureUsageMask | usage,
|  | StorageMode | mode,
|  | bool | supports_memoryless_textures,
|  | bool | supports_framebuffer_fetch
| ) |  |
| static constexpr

Definition at line 166 of file allocator_vk.cc.

171 {
172 vk::ImageUsageFlags vk_usage;
173
174 switch (mode) {
175 case StorageMode::kHostVisible:
176 case StorageMode::kDevicePrivate:
177 break;
178 case StorageMode::kDeviceTransient:
179 if (supports_memoryless_textures) {
180 vk_usage |= vk::ImageUsageFlagBits::eTransientAttachment;
181 }
182 break;
183 }
184
185 if (usage & static_cast<TextureUsageMask>(TextureUsage::kRenderTarget)) {
186 if (PixelFormatIsDepthStencil(format)) {
187 vk_usage |= vk::ImageUsageFlagBits::eDepthStencilAttachment;
188 } else {
189 vk_usage |= vk::ImageUsageFlagBits::eColorAttachment;
190 }
191 if (supports_framebuffer_fetch) {
192 vk_usage |= vk::ImageUsageFlagBits::eInputAttachment;
193 }
194 }
195
196 if (usage & static_cast<TextureUsageMask>(TextureUsage::kShaderRead)) {
197 vk_usage |= vk::ImageUsageFlagBits::eSampled;
198 // Device transient images can only be used as attachments. The caller
199 // specified incorrect usage flags and is attempting to read a device
200 // transient image in a shader. Unset the transient attachment flag. See:
201 // https://github.com/flutter/flutter/issues/121633
202 if (mode == StorageMode::kDeviceTransient) {
203 vk_usage &= ~vk::ImageUsageFlagBits::eTransientAttachment;
204 }
205 }
206
207 if (usage & static_cast<TextureUsageMask>(TextureUsage::kShaderWrite)) {
208 vk_usage |= vk::ImageUsageFlagBits::eStorage;
209 // Device transient images can only be used as attachments. The caller
210 // specified incorrect usage flags and is attempting to read a device
211 // transient image in a shader. Unset the transient attachment flag. See:
212 // https://github.com/flutter/flutter/issues/121633
213 if (mode == StorageMode::kDeviceTransient) {
214 vk_usage &= ~vk::ImageUsageFlagBits::eTransientAttachment;
215 }
216 }
217
218 if (mode != StorageMode::kDeviceTransient) {
219 // Add transfer usage flags to support blit passes only if image isn't
220 // device transient.
221 vk_usage |= vk::ImageUsageFlagBits::eTransferSrc |
222 vk::ImageUsageFlagBits::eTransferDst;
223 }
224
225 return vk_usage;
226 }

References PixelFormatIsDepthStencil().

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVKImageViewType()

constexpr vk::ImageViewType impeller::ToVKImageViewType | ( | TextureType | type | ) |
| constexpr

Definition at line 608 of file formats_vk.h.

608 {
609 switch (type) {
610 case TextureType::kTexture2D:
611 case TextureType::kTexture2DMultisample:
612 return vk::ImageViewType::e2D;
613 case TextureType::kTextureCube:
614 return vk::ImageViewType::eCube;
615 case TextureType::kTextureExternalOES:
616 VALIDATION_LOG
617 << "kTextureExternalOES can not be used with the Vulkan backend.";
618 }
619 FML_UNREACHABLE();
620 }

References kTexture2D, kTexture2DMultisample, kTextureCube, kTextureExternalOES, and VALIDATION_LOG.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVKIndexType()

constexpr vk::IndexType impeller::ToVKIndexType | ( | IndexType | index_type | ) |
| constexpr

Definition at line 331 of file formats_vk.h.

331 {
332 switch (index_type) {
333 case IndexType::k16bit:
334 return vk::IndexType::eUint16;
335 case IndexType::k32bit:
336 return vk::IndexType::eUint32;
337 case IndexType::kUnknown:
338 return vk::IndexType::eUint32;
339 case IndexType::kNone:
340 FML_UNREACHABLE();
341 }
342
343 FML_UNREACHABLE();
344 }

References k16bit, k32bit, kNone, and kUnknown.

## ◆ ToVKPipelineColorBlendAttachmentState()

constexpr vk::PipelineColorBlendAttachmentState impeller::ToVKPipelineColorBlendAttachmentState | ( | const ColorAttachmentDescriptor & | desc | ) |
| constexpr

Definition at line 103 of file formats_vk.h.

103 {
104 vk::PipelineColorBlendAttachmentState res;
105
106 res.setBlendEnable(desc.blending_enabled);
107
108 res.setSrcColorBlendFactor(ToVKBlendFactor(desc.src_color_blend_factor));
109 res.setColorBlendOp(ToVKBlendOp(desc.color_blend_op));
110 res.setDstColorBlendFactor(ToVKBlendFactor(desc.dst_color_blend_factor));
111
112 res.setSrcAlphaBlendFactor(ToVKBlendFactor(desc.src_alpha_blend_factor));
113 res.setAlphaBlendOp(ToVKBlendOp(desc.alpha_blend_op));
114 res.setDstAlphaBlendFactor(ToVKBlendFactor(desc.dst_alpha_blend_factor));
115
116 res.setColorWriteMask(ToVKColorComponentFlags(desc.write_mask));
117
118 return res;
119 }

References impeller::ColorAttachmentDescriptor::alpha_blend_op, impeller::ColorAttachmentDescriptor::blending_enabled, impeller::ColorAttachmentDescriptor::color_blend_op, impeller::ColorAttachmentDescriptor::dst_alpha_blend_factor, impeller::ColorAttachmentDescriptor::dst_color_blend_factor, impeller::ColorAttachmentDescriptor::src_alpha_blend_factor, impeller::ColorAttachmentDescriptor::src_color_blend_factor, ToVKBlendFactor(), ToVKBlendOp(), ToVKColorComponentFlags(), and impeller::ColorAttachmentDescriptor::write_mask.

## ◆ ToVKPipelineDepthStencilStateCreateInfo()

vk::PipelineDepthStencilStateCreateInfo impeller::ToVKPipelineDepthStencilStateCreateInfo | ( | std::optional< DepthAttachmentDescriptor > | depth,
|  | std::optional< StencilAttachmentDescriptor > | front,
|  | std::optional< StencilAttachmentDescriptor > | back
| ) |  |

Definition at line 9 of file formats_vk.cc.

12 {
13 vk::PipelineDepthStencilStateCreateInfo info;
14
15 if (depth.has_value()) {
16 info.depthTestEnable = true;
17 info.depthWriteEnable = depth->depth_write_enabled;
18 info.depthCompareOp = ToVKCompareOp(depth->depth_compare);
19 info.minDepthBounds = 0.0f;
20 info.maxDepthBounds = 1.0f;
21 }
22
23 if (front.has_value()) {
24 info.stencilTestEnable = true;
25 info.front = ToVKStencilOpState(*front);
26 }
27
28 if (back.has_value()) {
29 info.stencilTestEnable = true;
30 info.back = ToVKStencilOpState(*back);
31 }
32
33 return info;
34 }

References ToVKCompareOp(), and ToVKStencilOpState().

## ◆ ToVKPolygonMode()

constexpr vk::PolygonMode impeller::ToVKPolygonMode | ( | PolygonMode | mode | ) |
| constexpr

Definition at line 346 of file formats_vk.h.

346 {
347 switch (mode) {
348 case PolygonMode::kFill:
349 return vk::PolygonMode::eFill;
350 case PolygonMode::kLine:
351 return vk::PolygonMode::eLine;
352 }
353 FML_UNREACHABLE();
354 }

References kFill, and kLine.

## ◆ ToVKPrimitiveTopology()

constexpr vk::PrimitiveTopology impeller::ToVKPrimitiveTopology | ( | PrimitiveType | primitive | ) |
| constexpr

Definition at line 356 of file formats_vk.h.

356 {
357 switch (primitive) {
358 case PrimitiveType::kTriangle:
359 return vk::PrimitiveTopology::eTriangleList;
360 case PrimitiveType::kTriangleStrip:
361 return vk::PrimitiveTopology::eTriangleStrip;
362 case PrimitiveType::kLine:
363 return vk::PrimitiveTopology::eLineList;
364 case PrimitiveType::kLineStrip:
365 return vk::PrimitiveTopology::eLineStrip;
366 case PrimitiveType::kPoint:
367 return vk::PrimitiveTopology::ePointList;
368 }
369
370 FML_UNREACHABLE();
371 }

References kLine, kLineStrip, kPoint, kTriangle, and kTriangleStrip.

## ◆ ToVKSampleCount()

constexpr vk::SampleCountFlagBits impeller::ToVKSampleCount | ( | SampleCount | sample_count | ) |
| constexpr

Definition at line 204 of file formats_vk.h.

204 {
205 switch (sample_count) {
206 case SampleCount::kCount1:
207 return vk::SampleCountFlagBits::e1;
208 case SampleCount::kCount4:
209 return vk::SampleCountFlagBits::e4;
210 }
211
212 FML_UNREACHABLE();
213 }

References kCount1, and kCount4.

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK(), and CreateAttachmentDescription().

## ◆ ToVKSampleCountFlagBits()

constexpr vk::SampleCountFlagBits impeller::ToVKSampleCountFlagBits | ( | SampleCount | count | ) |
| constexpr

Definition at line 19 of file formats_vk.h.

19 {
20 switch (count) {
21 case SampleCount::kCount1:
22 return vk::SampleCountFlagBits::e1;
23 case SampleCount::kCount4:
24 return vk::SampleCountFlagBits::e4;
25 }
26 FML_UNREACHABLE();
27 }

References kCount1, and kCount4.

## ◆ ToVKSamplerAddressMode()

constexpr vk::SamplerAddressMode impeller::ToVKSamplerAddressMode | ( | SamplerAddressMode | mode | ) |
| constexpr

Definition at line 238 of file formats_vk.h.

239 {
240 switch (mode) {
241 case SamplerAddressMode::kRepeat:
242 return vk::SamplerAddressMode::eRepeat;
243 case SamplerAddressMode::kMirror:
244 return vk::SamplerAddressMode::eMirroredRepeat;
245 case SamplerAddressMode::kClampToEdge:
246 return vk::SamplerAddressMode::eClampToEdge;
247 case SamplerAddressMode::kDecal:
248 return vk::SamplerAddressMode::eClampToBorder;
249 }
250
251 FML_UNREACHABLE();
252 }

References kClampToEdge, kDecal, kMirror, and kRepeat.

## ◆ ToVKSamplerMinMagFilter()

constexpr vk::Filter impeller::ToVKSamplerMinMagFilter | ( | MinMagFilter | filter | ) |
| constexpr

Definition at line 215 of file formats_vk.h.

215 {
216 switch (filter) {
217 case MinMagFilter::kNearest:
218 return vk::Filter::eNearest;
219 case MinMagFilter::kLinear:
220 return vk::Filter::eLinear;
221 }
222
223 FML_UNREACHABLE();
224 }

References kLinear, and kNearest.

## ◆ ToVKSamplerMipmapMode()

constexpr vk::SamplerMipmapMode impeller::ToVKSamplerMipmapMode | ( | MipFilter | filter | ) |
| constexpr

Definition at line 226 of file formats_vk.h.

226 {
227 vk::SamplerCreateInfo sampler_info;
228 switch (filter) {
229 case MipFilter::kNearest:
230 return vk::SamplerMipmapMode::eNearest;
231 case MipFilter::kLinear:
232 return vk::SamplerMipmapMode::eLinear;
233 }
234
235 FML_UNREACHABLE();
236 }

References kLinear, and kNearest.

## ◆ ToVkShaderStage()

constexpr vk::ShaderStageFlags impeller::ToVkShaderStage | ( | ShaderStage | stage | ) |
| constexpr

Definition at line 254 of file formats_vk.h.

254 {
255 switch (stage) {
256 case ShaderStage::kUnknown:
257 return vk::ShaderStageFlagBits::eAll;
258 case ShaderStage::kFragment:
259 return vk::ShaderStageFlagBits::eFragment;
260 case ShaderStage::kCompute:
261 return vk::ShaderStageFlagBits::eCompute;
262 case ShaderStage::kVertex:
263 return vk::ShaderStageFlagBits::eVertex;
264 }
265
266 FML_UNREACHABLE();
267 }

References kCompute, kFragment, kUnknown, and kVertex.

Referenced by ToVKDescriptorSetLayoutBinding().

## ◆ ToVKShaderStageFlagBits()

constexpr std::optional<vk::ShaderStageFlagBits> impeller::ToVKShaderStageFlagBits | ( | ShaderStage | stage | ) |
| constexpr

Definition at line 121 of file formats_vk.h.

122 {
123 switch (stage) {
124 case ShaderStage::kUnknown:
125 return std::nullopt;
126 case ShaderStage::kVertex:
127 return vk::ShaderStageFlagBits::eVertex;
128 case ShaderStage::kFragment:
129 return vk::ShaderStageFlagBits::eFragment;
130 case ShaderStage::kCompute:
131 return vk::ShaderStageFlagBits::eCompute;
132 }
133 FML_UNREACHABLE();
134 }

References kCompute, kFragment, kUnknown, and kVertex.

## ◆ ToVKStencilOp()

constexpr vk::StencilOp impeller::ToVKStencilOp | ( | StencilOperation | op | ) |
| constexpr

Definition at line 530 of file formats_vk.h.

530 {
531 switch (op) {
532 case StencilOperation::kKeep:
533 return vk::StencilOp::eKeep;
534 case StencilOperation::kZero:
535 return vk::StencilOp::eZero;
536 case StencilOperation::kSetToReferenceValue:
537 return vk::StencilOp::eReplace;
538 case StencilOperation::kIncrementClamp:
539 return vk::StencilOp::eIncrementAndClamp;
540 case StencilOperation::kDecrementClamp:
541 return vk::StencilOp::eDecrementAndClamp;
542 case StencilOperation::kInvert:
543 return vk::StencilOp::eInvert;
544 case StencilOperation::kIncrementWrap:
545 return vk::StencilOp::eIncrementAndWrap;
546 case StencilOperation::kDecrementWrap:
547 return vk::StencilOp::eDecrementAndWrap;
548 break;
549 }
550 FML_UNREACHABLE();
551 }

References kDecrementClamp, kDecrementWrap, kIncrementClamp, kIncrementWrap, kInvert, kKeep, kSetToReferenceValue, and kZero.

Referenced by ToVKStencilOpState().

## ◆ ToVKStencilOpState()

constexpr vk::StencilOpState impeller::ToVKStencilOpState | ( | const StencilAttachmentDescriptor & | desc | ) |
| constexpr

Definition at line 553 of file formats_vk.h.

554 {
555 vk::StencilOpState state;
556 state.failOp = ToVKStencilOp(desc.stencil_failure);
557 state.passOp = ToVKStencilOp(desc.depth_stencil_pass);
558 state.depthFailOp = ToVKStencilOp(desc.depth_failure);
559 state.compareOp = ToVKCompareOp(desc.stencil_compare);
560 state.compareMask = desc.read_mask;
561 state.writeMask = desc.write_mask;
562 // This is irrelevant as the stencil references are always dynamic state and
563 // will be set in the render pass.
564 state.reference = 1988;
565 return state;
566 }

References impeller::StencilAttachmentDescriptor::depth_failure, impeller::StencilAttachmentDescriptor::depth_stencil_pass, impeller::StencilAttachmentDescriptor::read_mask, impeller::StencilAttachmentDescriptor::stencil_compare, impeller::StencilAttachmentDescriptor::stencil_failure, ToVKCompareOp(), ToVKStencilOp(), and impeller::StencilAttachmentDescriptor::write_mask.

Referenced by ToVKPipelineDepthStencilStateCreateInfo().

## ◆ ToVKTextureMemoryPropertyFlags()

static constexpr vk::Flags<vk::MemoryPropertyFlagBits> impeller::ToVKTextureMemoryPropertyFlags | ( | StorageMode | mode,
|  | bool | supports_memoryless_textures
| ) |  |
| static constexpr

Definition at line 233 of file allocator_vk.cc.

234 {
235 switch (mode) {
236 case StorageMode::kHostVisible:
237 return vk::MemoryPropertyFlagBits::eHostVisible |
238 vk::MemoryPropertyFlagBits::eDeviceLocal;
239 case StorageMode::kDevicePrivate:
240 return vk::MemoryPropertyFlagBits::eDeviceLocal;
241 case StorageMode::kDeviceTransient:
242 if (supports_memoryless_textures) {
243 return vk::MemoryPropertyFlagBits::eLazilyAllocated |
244 vk::MemoryPropertyFlagBits::eDeviceLocal;
245 }
246 return vk::MemoryPropertyFlagBits::eDeviceLocal;
247 }
248 FML_UNREACHABLE();
249 }

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVmaAllocationBufferCreateFlags()

static VmaAllocationCreateFlags impeller::ToVmaAllocationBufferCreateFlags | ( | StorageMode | mode | ) |
| static

Definition at line 32 of file allocator_vk.cc.

33 {
34 VmaAllocationCreateFlags flags = 0;
35 switch (mode) {
36 case StorageMode::kHostVisible:
37 flags |= VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT;
38 flags |= VMA_ALLOCATION_CREATE_MAPPED_BIT;
39 return flags;
40 case StorageMode::kDevicePrivate:
41 return flags;
42 case StorageMode::kDeviceTransient:
43 return flags;
44 }
45 FML_UNREACHABLE();
46 }

References kDevicePrivate, kDeviceTransient, and kHostVisible.

Referenced by CreateBufferPool().

## ◆ ToVmaAllocationCreateFlags()

static VmaAllocationCreateFlags impeller::ToVmaAllocationCreateFlags | ( | StorageMode | mode | ) |
| static

Definition at line 251 of file allocator_vk.cc.

251 {
252 VmaAllocationCreateFlags flags = 0;
253 switch (mode) {
254 case StorageMode::kHostVisible:
255 return flags;
256 case StorageMode::kDevicePrivate:
257 return flags;
258 case StorageMode::kDeviceTransient:
259 return flags;
260 }
261 FML_UNREACHABLE();
262 }

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ ToVMAMemoryUsage()

static constexpr VmaMemoryUsage impeller::ToVMAMemoryUsage | ( |  | ) |
| static constexpr

Definition at line 228 of file allocator_vk.cc.

228 {
229 return VMA_MEMORY_USAGE_AUTO;
230 }

Referenced by impeller::AllocatedTextureSourceVK::AllocatedTextureSourceVK().

## ◆ UpdateAtlasBitmap() [1/2]

static bool impeller::UpdateAtlasBitmap | ( | const GlyphAtlas & | atlas,
|  | const std::shared_ptr< BitmapSTB > & | bitmap,
|  | const std::vector< FontGlyphPair > & | new_pairs
| ) |  |
| static

Definition at line 272 of file typographer_context_stb.cc.

274 {
275 TRACE_EVENT0("impeller", __FUNCTION__);
276 FML_DCHECK(bitmap != nullptr);
277
278 bool has_color = atlas.GetType() == GlyphAtlas::Type::kColorBitmap;
279
280 for (const FontGlyphPair& pair : new_pairs) {
281 auto pos = atlas.FindFontGlyphBounds(pair);
282 if (!pos.has_value()) {
283 continue;
284 }
285 DrawGlyph(bitmap.get(), pair.scaled_font, pair.glyph, pos.value(),
286 has_color);
287 }
288 return true;
289 }

References DrawGlyph(), impeller::GlyphAtlas::FindFontGlyphBounds(), impeller::GlyphAtlas::GetType(), and impeller::GlyphAtlas::kColorBitmap.

## ◆ UpdateAtlasBitmap() [2/2]

static bool impeller::UpdateAtlasBitmap | ( | const GlyphAtlas & | atlas,
|  | const std::shared_ptr< SkBitmap > & | bitmap,
|  | const std::vector< FontGlyphPair > & | new_pairs
| ) |  |
| static

Definition at line 188 of file typographer_context_skia.cc.

190 {
191 TRACE_EVENT0("impeller", __FUNCTION__);
192 FML_DCHECK(bitmap != nullptr);
193
194 auto surface = SkSurfaces::WrapPixels(bitmap->pixmap());
195 if (!surface) {
196 return false;
197 }
198 auto canvas = surface->getCanvas();
199 if (!canvas) {
200 return false;
201 }
202
203 bool has_color = atlas.GetType() == GlyphAtlas::Type::kColorBitmap;
204
205 for (const FontGlyphPair& pair : new_pairs) {
206 auto pos = atlas.FindFontGlyphBounds(pair);
207 if (!pos.has_value()) {
208 continue;
209 }
210 DrawGlyph(canvas, pair.scaled_font, pair.glyph, pos.value(), has_color);
211 }
212 return true;
213 }

References DrawGlyph(), impeller::GlyphAtlas::FindFontGlyphBounds(), impeller::GlyphAtlas::GetType(), and impeller::GlyphAtlas::kColorBitmap.

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ UpdateBindingLayouts() [1/6]

static bool impeller::UpdateBindingLayouts | ( | const Bindings & | bindings,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 36 of file compute_pass_vk.cc.

37 {
38 BarrierVK barrier;
39 barrier.cmd_buffer = buffer;
40 barrier.src_access = vk::AccessFlagBits::eTransferWrite;
41 barrier.src_stage = vk::PipelineStageFlagBits::eTransfer;
42 barrier.dst_access = vk::AccessFlagBits::eShaderRead;
43 barrier.dst_stage = vk::PipelineStageFlagBits::eComputeShader;
44
45 barrier.new_layout = vk::ImageLayout::eShaderReadOnlyOptimal;
46
47 for (const TextureAndSampler& data : bindings.sampled_images) {
48 if (!TextureVK::Cast(*data.texture.resource).SetLayout(barrier)) {
49 return false;
50 }
51 }
52 return true;
53 }

References impeller::BackendCast< TextureVK, Texture >::Cast(), impeller::BarrierVK::cmd_buffer, impeller::BarrierVK::dst_access, impeller::BarrierVK::dst_stage, impeller::BarrierVK::new_layout, impeller::Resource< T >::resource, impeller::Bindings::sampled_images, impeller::TextureVK::SetLayout(), impeller::BarrierVK::src_access, impeller::BarrierVK::src_stage, and impeller::TextureAndSampler::texture.

Referenced by UpdateBindingLayouts().

## ◆ UpdateBindingLayouts() [2/6]

static bool impeller::UpdateBindingLayouts | ( | const Bindings & | bindings,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 304 of file render_pass_vk.cc.

305 {
306 // All previous writes via a render or blit pass must be done before another
307 // shader attempts to read the resource.
308 BarrierVK barrier;
309 barrier.cmd_buffer = buffer;
310 barrier.src_access = vk::AccessFlagBits::eColorAttachmentWrite |
311 vk::AccessFlagBits::eTransferWrite;
312 barrier.src_stage = vk::PipelineStageFlagBits::eColorAttachmentOutput |
313 vk::PipelineStageFlagBits::eTransfer;
314 barrier.dst_access = vk::AccessFlagBits::eShaderRead;
315 barrier.dst_stage = vk::PipelineStageFlagBits::eFragmentShader;
316
317 barrier.new_layout = vk::ImageLayout::eShaderReadOnlyOptimal;
318
319 for (const TextureAndSampler& data : bindings.sampled_images) {
320 if (!TextureVK::Cast(*data.texture.resource).SetLayout(barrier)) {
321 return false;
322 }
323 }
324 return true;
325 }

References impeller::BarrierVK::cmd_buffer, impeller::BarrierVK::dst_access, impeller::BarrierVK::dst_stage, impeller::BarrierVK::new_layout, impeller::Resource< T >::resource, impeller::Bindings::sampled_images, impeller::BarrierVK::src_access, impeller::BarrierVK::src_stage, and impeller::TextureAndSampler::texture.

## ◆ UpdateBindingLayouts() [3/6]

static bool impeller::UpdateBindingLayouts | ( | const Command & | command,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 327 of file render_pass_vk.cc.

328 {
329 return UpdateBindingLayouts(command.vertex_bindings, buffer) &&
330 UpdateBindingLayouts(command.fragment_bindings, buffer);
331 }

References impeller::Command::fragment_bindings, UpdateBindingLayouts(), and impeller::Command::vertex_bindings.

## ◆ UpdateBindingLayouts() [4/6]

static bool impeller::UpdateBindingLayouts | ( | const ComputeCommand & | command,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 55 of file compute_pass_vk.cc.

56 {
57 return UpdateBindingLayouts(command.bindings, buffer);
58 }

References impeller::ComputeCommand::bindings, and UpdateBindingLayouts().

## ◆ UpdateBindingLayouts() [5/6]

static bool impeller::UpdateBindingLayouts | ( | const std::vector< Command > & | commands,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 333 of file render_pass_vk.cc.

334 {
335 for (const Command& command : commands) {
336 if (!UpdateBindingLayouts(command, buffer)) {
337 return false;
338 }
339 }
340 return true;
341 }

Referenced by UpdateBindingLayouts().

## ◆ UpdateBindingLayouts() [6/6]

static bool impeller::UpdateBindingLayouts | ( | const std::vector< ComputeCommand > & | commands,
|  | const vk::CommandBuffer & | buffer
| ) |  |
| static

Definition at line 60 of file compute_pass_vk.cc.

61 {
62 for (const ComputeCommand& command : commands) {
63 if (!UpdateBindingLayouts(command, buffer)) {
64 return false;
65 }
66 }
67 return true;
68 }

References UpdateBindingLayouts().

## ◆ UpdateGlyphTextureAtlas() [1/2]

static bool impeller::UpdateGlyphTextureAtlas | ( | std::shared_ptr< BitmapSTB > & | bitmap,
|  | const std::shared_ptr< Texture > & | texture
| ) |  |
| static

Definition at line 316 of file typographer_context_stb.cc.

317 {
318 TRACE_EVENT0("impeller", __FUNCTION__);
319
320 FML_DCHECK(bitmap != nullptr);
321
322 auto texture_descriptor = texture->GetTextureDescriptor();
323
324 auto mapping = std::make_shared<fml::NonOwnedMapping>(
325 reinterpret_cast<const uint8_t*>(bitmap->GetPixels()), // data
326 texture_descriptor.GetByteSizeOfBaseMipLevel() // size
327 // As the bitmap is static in this module I believe we don't need to
328 // specify a release proc.
329 );
330
331 return texture->SetContents(mapping);
332 }

## ◆ UpdateGlyphTextureAtlas() [2/2]

static bool impeller::UpdateGlyphTextureAtlas | ( | std::shared_ptr< SkBitmap > | bitmap,
|  | const std::shared_ptr< Texture > & | texture
| ) |  |
| static

Definition at line 256 of file typographer_context_skia.cc.

257 {
258 TRACE_EVENT0("impeller", __FUNCTION__);
259
260 FML_DCHECK(bitmap != nullptr);
261 auto texture_descriptor = texture->GetTextureDescriptor();
262
263 auto mapping = std::make_shared<fml::NonOwnedMapping>(
264 reinterpret_cast<const uint8_t*>(bitmap->getAddr(0, 0)), // data
265 texture_descriptor.GetByteSizeOfBaseMipLevel(), // size
266 [bitmap](auto, auto) mutable { bitmap.reset(); } // proc
267 );
268
269 return texture->SetContents(mapping);
270 }

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ UploadGlyphTextureAtlas() [1/2]

static std::shared_ptr<Texture> impeller::UploadGlyphTextureAtlas | ( | const std::shared_ptr< Allocator > & | allocator,
|  | std::shared_ptr< BitmapSTB > & | bitmap,
|  | const ISize & | atlas_size,
|  | PixelFormat | format
| ) |  |
| static

Definition at line 334 of file typographer_context_stb.cc.

338 {
339 TRACE_EVENT0("impeller", __FUNCTION__);
340 if (!allocator) {
341 return nullptr;
342 }
343
344 FML_DCHECK(bitmap != nullptr);
345
346 TextureDescriptor texture_descriptor;
347 texture_descriptor.storage_mode = StorageMode::kHostVisible;
348 texture_descriptor.format = format;
349 texture_descriptor.size = atlas_size;
350
351 if (bitmap->GetRowBytes() * bitmap->GetHeight() !=
352 texture_descriptor.GetByteSizeOfBaseMipLevel()) {
353 return nullptr;
354 }
355
356 auto texture = allocator->CreateTexture(texture_descriptor);
357 if (!texture || !texture->IsValid()) {
358 return nullptr;
359 }
360 texture->SetLabel("GlyphAtlas");
361
362 auto mapping = std::make_shared<fml::NonOwnedMapping>(
363 reinterpret_cast<const uint8_t*>(bitmap->GetPixels()), // data
364 texture_descriptor.GetByteSizeOfBaseMipLevel() // size
365 // As the bitmap is static in this module I believe we don't need to
366 // specify a release proc.
367 );
368
369 if (!texture->SetContents(mapping)) {
370 return nullptr;
371 }
372 return texture;
373 }

References impeller::TextureDescriptor::format, impeller::TextureDescriptor::GetByteSizeOfBaseMipLevel(), kHostVisible, impeller::TextureDescriptor::size, and impeller::TextureDescriptor::storage_mode.

## ◆ UploadGlyphTextureAtlas() [2/2]

static std::shared_ptr<Texture> impeller::UploadGlyphTextureAtlas | ( | const std::shared_ptr< Allocator > & | allocator,
|  | std::shared_ptr< SkBitmap > | bitmap,
|  | const ISize & | atlas_size,
|  | PixelFormat | format
| ) |  |
| static

Definition at line 272 of file typographer_context_skia.cc.

276 {
277 TRACE_EVENT0("impeller", __FUNCTION__);
278 if (!allocator) {
279 return nullptr;
280 }
281
282 FML_DCHECK(bitmap != nullptr);
283 const auto& pixmap = bitmap->pixmap();
284
285 TextureDescriptor texture_descriptor;
286 texture_descriptor.storage_mode = StorageMode::kHostVisible;
287 texture_descriptor.format = format;
288 texture_descriptor.size = atlas_size;
289
290 if (pixmap.rowBytes() * pixmap.height() !=
291 texture_descriptor.GetByteSizeOfBaseMipLevel()) {
292 return nullptr;
293 }
294
295 auto texture = allocator->CreateTexture(texture_descriptor);
296 if (!texture || !texture->IsValid()) {
297 return nullptr;
298 }
299 texture->SetLabel("GlyphAtlas");
300
301 auto mapping = std::make_shared<fml::NonOwnedMapping>(
302 reinterpret_cast<const uint8_t*>(bitmap->getAddr(0, 0)), // data
303 texture_descriptor.GetByteSizeOfBaseMipLevel(), // size
304 [bitmap](auto, auto) mutable { bitmap.reset(); } // proc
305 );
306
307 if (!texture->SetContents(mapping)) {
308 return nullptr;
309 }
310 return texture;
311 }

References impeller::TextureDescriptor::format, impeller::TextureDescriptor::GetByteSizeOfBaseMipLevel(), kHostVisible, impeller::TextureDescriptor::size, and impeller::TextureDescriptor::storage_mode.

Referenced by impeller::TypographerContextSkia::CreateGlyphAtlas(), and impeller::TypographerContextSTB::CreateGlyphAtlas().

## ◆ UseColorSourceContents()

static bool impeller::UseColorSourceContents | ( | const std::shared_ptr< VerticesGeometry > & | vertices,
|  | const Paint & | paint
| ) |  |
| static

Definition at line 729 of file canvas.cc.

731 {
732 // If there are no vertex color or texture coordinates. Or if there
733 // are vertex coordinates then only if the contents are an image or
734 // a solid color.
735 if (vertices->HasVertexColors()) {
736 return false;
737 }
738 if (vertices->HasTextureCoordinates() &&
739 (paint.color_source.GetType() == ColorSource::Type::kImage ||
740 paint.color_source.GetType() == ColorSource::Type::kColor)) {
741 return true;
742 }
743 return !vertices->HasTextureCoordinates();
744 }

References impeller::Paint::color_source, impeller::ColorSource::GetType(), impeller::ColorSource::kColor, and impeller::ColorSource::kImage.

Referenced by impeller::Canvas::DrawVertices().

## ◆ ValidateBlendModes()

static constexpr bool impeller::ValidateBlendModes | ( |  | ) |
| inline static constexpr

Definition at line 28 of file color.cc.

28 {
29 std::underlying_type_t<BlendMode> i = 0;
30 // Ensure the order of the blend modes match.
31 IMPELLER_FOR_EACH_BLEND_MODE(_IMPELLER_ASSERT_BLEND_MODE)
32 // Ensure the total number of blend modes match.
33 if (i - 1 !=
34 static_cast<std::underlying_type_t<BlendMode>>(BlendMode::kLast)) {
35 return false;
36 }
37 return true;
38 }

References _IMPELLER_ASSERT_BLEND_MODE, IMPELLER_FOR_EACH_BLEND_MODE, and kLast.

## ◆ VerifyExistingCache()

static bool impeller::VerifyExistingCache | ( | const fml::Mapping & | mapping,
|  | const CapabilitiesVK & | caps
| ) |  |
| static

Definition at line 19 of file pipeline_cache_vk.cc.

20 {
21 return true;
22 }

Referenced by OpenCacheFile().

## ◆ VKClearValueFromColor()

static vk::ClearColorValue impeller::VKClearValueFromColor | ( | Color | color | ) |
| static

Definition at line 216 of file render_pass_vk.cc.

216 {
217 vk::ClearColorValue value;
218 value.setFloat32(
219 std::array<float, 4>{color.red, color.green, color.blue, color.alpha});
220 return value;
221 }

References impeller::Color::alpha, impeller::Color::blue, impeller::Color::green, and impeller::Color::red.

Referenced by GetVKClearValues().

## ◆ VKClearValueFromDepthStencil()

static vk::ClearDepthStencilValue impeller::VKClearValueFromDepthStencil | ( | uint32_t | stencil,
|  | Scalar | depth
| ) |  |
| static

Definition at line 223 of file render_pass_vk.cc.

224 {
225 vk::ClearDepthStencilValue value;
226 value.depth = depth;
227 value.stencil = stencil;
228 return value;
229 }

Referenced by GetVKClearValues().

## ◆ VKShaderNameToShaderKeyName()

static std::string impeller::VKShaderNameToShaderKeyName | ( | const std::string & | name,
|  | ShaderStage | stage
| ) |  |
| static

Definition at line 30 of file shader_library_vk.cc.

31 {
32 std::stringstream stream;
33 stream << name;
34 switch (stage) {
35 case ShaderStage::kUnknown:
36 stream << "_unknown_";
37 break;
38 case ShaderStage::kVertex:
39 stream << "_vertex_";
40 break;
41 case ShaderStage::kFragment:
42 stream << "_fragment_";
43 break;
44 case ShaderStage::kCompute:
45 stream << "_compute_";
46 break;
47 }
48 stream << "main";
49 return stream.str();
50 }

References kCompute, kFragment, kUnknown, and kVertex.

## ◆ WrappedResolver()

ProcTableGLES::Resolver impeller::WrappedResolver | ( | const ProcTableGLES::Resolver & | resolver | ) |

Definition at line 52 of file proc_table_gles.cc.

53 {
54 return [resolver](const char* function_name) -> void* {
55 auto resolved = resolver(function_name);
56 if (resolved) {
57 return resolved;
58 }
59 // If there are certain known suffixes (usually for extensions), strip them
60 // out and try to resolve the same proc addresses again.
61 auto function = std::string{function_name};
62 if (function.find("KHR", function.size() - 3) != std::string::npos) {
63 auto truncated = function.substr(0u, function.size() - 3);
64 return resolver(truncated.c_str());
65 }
66 if (function.find("EXT", function.size() - 3) != std::string::npos) {
67 auto truncated = function.substr(0u, function.size() - 3);
68 return resolver(truncated.c_str());
69 }
70 return nullptr;
71 };
72 }

Referenced by impeller::ProcTableGLES::ProcTableGLES().

## ◆ WrapperMTL()

std::shared_ptr<Texture> impeller::WrapperMTL | ( | TextureDescriptor | desc,
|  | const void * | mtl_texture,
|  | std::function< void()> | deletion_proc
| ) |  |

Definition at line 13 of file texture_mtl.mm.

15 {
16 return TextureMTL::Wrapper(desc, (__bridge id<MTLTexture>)mtl_texture,
17 std::move(deletion_proc));
18 }

References impeller::TextureMTL::Wrapper().

## ◆ WrapTextureMTL()

std::shared_ptr< Texture > impeller::WrapTextureMTL | ( | TextureDescriptor | desc,
|  | const void * | mtl_texture,
|  | std::function< void()> | deletion_proc = `nullptr`
| ) |  |

Definition at line 14 of file texture_wrapper_mtl.mm.

16 {
17 auto texture = (__bridge id<MTLTexture>)mtl_texture;
18 desc.format = FromMTLPixelFormat(texture.pixelFormat);
19 return TextureMTL::Wrapper(desc, texture, std::move(deletion_proc));
20 }

References impeller::TextureDescriptor::format, FromMTLPixelFormat(), and impeller::TextureMTL::Wrapper().

## ◆ WrapTextureWithRenderTarget()

static std::optional<RenderTarget> impeller::WrapTextureWithRenderTarget | ( | Allocator & | allocator,
|  | id< MTLTexture > | texture,
|  | bool | requires_blit,
|  | std::optional< IRect > | clip_rect
| ) |  |
| static

Definition at line 43 of file surface_mtl.mm.

47 {
48 // compositor_context.cc will offset the rendering by the clip origin. Here we
49 // shrink to the size of the clip. This has the same effect as clipping the
50 // rendering but also creates smaller intermediate passes.
51 ISize root_size;
52 if (requires_blit) {
53 if (!clip_rect.has_value()) {
54 VALIDATION_LOG << "Missing clip rectangle.";
55 return std::nullopt;
56 }
57 root_size = ISize(clip_rect->GetWidth(), clip_rect->GetHeight());
58 } else {
59 root_size = {static_cast<ISize::Type>(texture.width),
60 static_cast<ISize::Type>(texture.height)};
61 }
62
63 TextureDescriptor resolve_tex_desc;
64 resolve_tex_desc.format = FromMTLPixelFormat(texture.pixelFormat);
65 resolve_tex_desc.size = root_size;
66 resolve_tex_desc.usage = static_cast<uint64_t>(TextureUsage::kRenderTarget) |
67 static_cast<uint64_t>(TextureUsage::kShaderRead);
68 resolve_tex_desc.sample_count = SampleCount::kCount1;
69 resolve_tex_desc.storage_mode = StorageMode::kDevicePrivate;
70
71 if (resolve_tex_desc.format == PixelFormat::kUnknown) {
72 VALIDATION_LOG << "Unknown drawable color format.";
73 return std::nullopt;
74 }
75
76 // Create color resolve texture.
77 std::shared_ptr<Texture> resolve_tex;
78 if (requires_blit) {
79 resolve_tex_desc.compression_type = CompressionType::kLossy;
80 resolve_tex = allocator.CreateTexture(resolve_tex_desc);
81 } else {
82 resolve_tex = TextureMTL::Create(resolve_tex_desc, texture);
83 }
84
85 if (!resolve_tex) {
86 VALIDATION_LOG << "Could not wrap resolve texture.";
87 return std::nullopt;
88 }
89 resolve_tex->SetLabel("ImpellerOnscreenResolve");
90
91 TextureDescriptor msaa_tex_desc;
92 msaa_tex_desc.storage_mode = StorageMode::kDeviceTransient;
93 msaa_tex_desc.type = TextureType::kTexture2DMultisample;
94 msaa_tex_desc.sample_count = SampleCount::kCount4;
95 msaa_tex_desc.format = resolve_tex->GetTextureDescriptor().format;
96 msaa_tex_desc.size = resolve_tex->GetSize();
97 msaa_tex_desc.usage = static_cast<uint64_t>(TextureUsage::kRenderTarget);
98
99 auto msaa_tex = allocator.CreateTexture(msaa_tex_desc);
100 if (!msaa_tex) {
101 VALIDATION_LOG << "Could not allocate MSAA color texture.";
102 return std::nullopt;
103 }
104 msaa_tex->SetLabel("ImpellerOnscreenColorMSAA");
105
106 ColorAttachment color0;
107 color0.texture = msaa_tex;
108 color0.clear_color = Color::DarkSlateGray();
109 color0.load_action = LoadAction::kClear;
110 color0.store_action = StoreAction::kMultisampleResolve;
111 color0.resolve_texture = std::move(resolve_tex);
112
113 auto render_target_desc = std::make_optional<RenderTarget>();
114 render_target_desc->SetColorAttachment(color0, 0u);
115
116 return render_target_desc;
117 }

References impeller::ColorAttachment::clear_color, impeller::TextureDescriptor::compression_type, impeller::TextureMTL::Create(), impeller::Allocator::CreateTexture(), impeller::Color::DarkSlateGray(), impeller::TextureDescriptor::format, FromMTLPixelFormat(), kClear, kCount1, kCount4, kDevicePrivate, kDeviceTransient, kLossy, kMultisampleResolve, kRenderTarget, kShaderRead, kTexture2DMultisample, kUnknown, impeller::Attachment::load_action, impeller::Attachment::resolve_texture, impeller::TextureDescriptor::sample_count, impeller::TextureDescriptor::size, impeller::TextureDescriptor::storage_mode, impeller::Attachment::store_action, impeller::Attachment::texture, impeller::TextureDescriptor::type, impeller::TextureDescriptor::usage, and VALIDATION_LOG.

Referenced by impeller::SurfaceMTL::MakeFromTexture().

## Variable Documentation

## ◆ g_all_pools_map_mutex

Mutex impeller::g_all_pools_map_mutex
| static

Definition at line 136 of file command_pool_vk.cc.

Referenced by impeller::CommandPoolRecyclerVK::DestroyThreadLocalPools(), and impeller::CommandPoolRecyclerVK::Get().

## ◆ gHasValidationLayers

bool impeller::gHasValidationLayers = false
| static

Definition at line 41 of file context_vk.cc.

Referenced by HasValidationLayers().

## ◆ gShouldOpenNewPlaygrounds

std::atomic_bool impeller::gShouldOpenNewPlaygrounds = true
| static

Definition at line 150 of file playground.cc.

Referenced by PlaygroundKeyCallback(), and impeller::Playground::ShouldOpenNewPlaygrounds().

## ◆ k1OverPi

constexpr float impeller::k1OverPi = 0.31830988618379067154f
| constexpr

Definition at line 38 of file constants.h.

## ◆ k1OverSqrt2

constexpr float impeller::k1OverSqrt2 = 0.70710678118654752440f
| constexpr

Definition at line 50 of file constants.h.

Referenced by impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ k2OverPi

constexpr float impeller::k2OverPi = 0.63661977236758134308f
| constexpr

Definition at line 41 of file constants.h.

## ◆ k2OverSqrtPi

constexpr float impeller::k2OverSqrtPi = 1.12837916709551257390f
| constexpr

Definition at line 44 of file constants.h.

## ◆ k2Pi

constexpr float impeller::k2Pi = 6.28318530717958647693f
| constexpr

Definition at line 29 of file constants.h.

Referenced by impeller::PathBuilder::AddArc(), impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ kAlloc

const TESSalloc impeller::kAlloc
| static

Initial value:
= {
HeapAlloc, HeapRealloc, HeapFree, 0,
16,
16,
16,
16,
16,
0
}

Definition at line 24 of file tessellator.cc.

Referenced by impeller::Tessellator::Tessellator().

## ◆ kArchivePrimaryKeyColumnName

constexpr const char* impeller::kArchivePrimaryKeyColumnName = "primary_key"
| static constexpr

Definition at line 15 of file archive_class_registration.cc.

Referenced by impeller::ArchiveClassRegistration::CreateQueryStatement().

## ◆ kBlendModeNames

constexpr const char* impeller::kBlendModeNames[]
| static constexpr

Initial value:
= {
IMPELLER_FOR_EACH_BLEND_MODE(_IMPELLER_BLEND_MODE_NAME_LIST)}

Definition at line 44 of file color.cc.

Referenced by BlendModeToString().

## ◆ kColorInversion

constexpr ColorMatrix impeller::kColorInversion
| constexpr

Initial value:
= {
.array = {
-1.0, 0, 0, 1.0, 0,
0, -1.0, 0, 1.0, 0,
0, 0, -1.0, 1.0, 0,
1.0, 1.0, 1.0, 1.0, 0
}
}

A color matrix which inverts colors.

Definition at line 19 of file paint.cc.

Referenced by impeller::Paint::GetColorFilter().

## ◆ kDefaultCurveTolerance

constexpr Scalar impeller::kDefaultCurveTolerance = .1f
| static constexpr

Definition at line 26 of file path_component.h.

Referenced by impeller::QuadraticPathComponent::AppendPolylinePoints().

## ◆ kE

constexpr float impeller::kE = 2.7182818284590452354f
| constexpr

Definition at line 11 of file constants.h.

## ◆ kEhCloseEnough

constexpr float impeller::kEhCloseEnough = 1e-3f
| constexpr

Definition at line 56 of file constants.h.

Referenced by impeller::Color::Blend(), ClipColor(), impeller::VerticesGeometry::GetPositionUVBuffer(), impeller::SolidRRectBlurContents::Render(), impeller::TextureContents::RenderToSnapshot(), impeller::Tessellator::RoundCapLine(), and impeller::testing::TEST().

## ◆ kElementsWindowName

const char* impeller::kElementsWindowName = "Elements"
| static

Definition at line 17 of file aiks_playground_inspector.cc.

## ◆ kEmptyResult

const GeometryResult impeller::kEmptyResult
| static

Initial value:
= {
.vertex_buffer =
{
.index_type = IndexType::kNone,
},
}

Definition at line 27 of file geometry.h.

## ◆ kFramebufferFetchExt

const constexpr char* impeller::kFramebufferFetchExt
| static constexpr

Initial value:
=
"GL_EXT_shader_framebuffer_fetch"

Definition at line 12 of file capabilities_gles.cc.

Referenced by impeller::CapabilitiesGLES::CapabilitiesGLES().

## ◆ kImageSizeThresholdForDedicatedMemoryAllocation

constexpr size_t impeller::kImageSizeThresholdForDedicatedMemoryAllocation
| constexpr

Initial value:
=
4 * 1024 * 1024

Definition at line 12 of file limits_vk.h.

## ◆ kInstanceLayer

constexpr const char* impeller::kInstanceLayer = "ImpellerInstance"
| static constexpr

Definition at line 16 of file capabilities_vk.cc.

Referenced by impeller::CapabilitiesVK::CapabilitiesVK().

## ◆ kKernelRadiusPerSigma

constexpr static float impeller::kKernelRadiusPerSigma = 1.73205080757
| static constexpr

For filters that use a Gaussian distribution, this is the `Radius` size to use per `Sigma` (standard deviation).

This cutoff (sqrt(3)) is taken from Flutter and Skia (where the multiplicative inverse of this constant is used (1 / sqrt(3)): https://api.flutter.dev/flutter/dart-ui/Shadow/convertRadiusToSigma.html

In practice, this value is somewhat arbitrary, and can be changed to a higher number to integrate more of the Gaussian function and render higher quality blurs (with exponentially diminishing returns for the same sigma input). Making this value any lower results in a noticable loss of quality in the blur.

Definition at line 24 of file sigma.h.

Referenced by impeller::Sigma::operator Radius(), and impeller::Radius::operator Sigma().

## ◆ kLog10E

constexpr float impeller::kLog10E = 0.43429448190325182765f
| constexpr

Definition at line 17 of file constants.h.

## ◆ kLog2E

constexpr float impeller::kLog2E = 1.4426950408889634074f
| constexpr

Definition at line 14 of file constants.h.

## ◆ kLogE10

constexpr float impeller::kLogE10 = 2.30258509299404568402f
| constexpr

Definition at line 23 of file constants.h.

## ◆ kLogE2

constexpr float impeller::kLogE2 = 0.69314718055994530942f
| constexpr

Definition at line 20 of file constants.h.

## ◆ kMagicSubpassInputBinding

constexpr size_t impeller::kMagicSubpassInputBinding = 64
| static constexpr

Definition at line 24 of file binding_helpers_vk.cc.

Referenced by AllocateAndBindDescriptorSets().

## ◆ kMatrixBT601FullRange

constexpr Matrix impeller::kMatrixBT601FullRange
| constexpr

Initial value:
= {
1.0, 1.0, 1.0, 0.0,
0.0, -0.344, 1.772, 0.0,
1.402, -0.714, 0.0, 0.0,
0.0, 0.0, 0.0, 1.0
}

Definition at line 24 of file yuv_to_rgb_filter_contents.cc.

## ◆ kMatrixBT601LimitedRange

constexpr Matrix impeller::kMatrixBT601LimitedRange
| constexpr

Initial value:
= {
1.164, 1.164, 1.164, 0.0,
0.0, -0.392, 2.017, 0.0,
1.596, -0.813, 0.0, 0.0,
0.0, 0.0, 0.0, 1.0
}

Definition at line 17 of file yuv_to_rgb_filter_contents.cc.

## ◆ kMaxFramesInFlight

constexpr size_t impeller::kMaxFramesInFlight = 3u
| static constexpr

Definition at line 21 of file swapchain_impl_vk.cc.

## ◆ kMultisampledRenderToTextureExt

const constexpr char* impeller::kMultisampledRenderToTextureExt
| static constexpr

Initial value:
=
"GL_EXT_multisampled_render_to_texture"

Definition at line 21 of file capabilities_gles.cc.

Referenced by impeller::CapabilitiesGLES::CapabilitiesGLES().

## ◆ kNvidiaTextureBorderClampExt

const constexpr char* impeller::kNvidiaTextureBorderClampExt
| static constexpr

Initial value:
=
"GL_NV_texture_border_clamp"

Definition at line 17 of file capabilities_gles.cc.

Referenced by impeller::CapabilitiesGLES::CapabilitiesGLES().

## ◆ kPadding

constexpr size_t impeller::kPadding = 2
| constexpr

Definition at line 28 of file typographer_context_skia.cc.

Referenced by CanAppendToExistingAtlas(), DrawGlyph(), and PairsFitInAtlasOfSize().

## ◆ kPhi

constexpr float impeller::kPhi = 1.61803398874989484820f
| constexpr

Definition at line 53 of file constants.h.

Referenced by impeller::testing::TEST_P().

## ◆ kPi

constexpr float impeller::kPi = 3.14159265358979323846f
| constexpr

Definition at line 26 of file constants.h.

Referenced by impeller::Degrees::operator Radians(), impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ kPiOver2

constexpr float impeller::kPiOver2 = 1.57079632679489661923f
| constexpr

Definition at line 32 of file constants.h.

Referenced by impeller::PathBuilder::AddArc(), impeller::testing::TEST(), and impeller::testing::TEST_P().

## ◆ kPiOver4

constexpr float impeller::kPiOver4 = 0.78539816339744830962f
| constexpr

Definition at line 35 of file constants.h.

Referenced by ComputeQuadrantDivisions(), impeller::testing::TEST(), and impeller::scene::testing::TEST_P().

## ◆ kPipelineCacheFileName

constexpr const char* impeller::kPipelineCacheFileName
| static constexpr

Initial value:
=
"flutter.impeller.vkcache"

Definition at line 16 of file pipeline_cache_vk.cc.

Referenced by impeller::PipelineCacheVK::PersistCacheToDisk(), and impeller::PipelineCacheVK::PipelineCacheVK().

## ◆ kPollFramesForOrientation

constexpr size_t impeller::kPollFramesForOrientation = 1u
| static constexpr

Definition at line 26 of file swapchain_impl_vk.cc.

Referenced by impeller::SwapchainImplVK::AcquireNextDrawable().

## ◆ kPoolSize

constexpr uint32_t impeller::kPoolSize = 1024u
| static constexpr

Definition at line 19 of file gpu_tracer_vk.cc.

## ◆ kPorterDuffCoefficients

constexpr std::array<std::array<Scalar, 5>, 15> impeller::kPorterDuffCoefficients
| constexpr

Initial value:
= {{
{0, 0, 0, 0, 0},
{1, 0, 0, 0, 0},
{0, 0, 1, 0, 0},
{1, 0, 1, -1, 0},
{1, -1, 1, 0, 0},
{0, 1, 0, 0, 0},
{0, 0, 0, 1, 0},
{1, -1, 0, 0, 0},
{0, 0, 1, -1, 0},
{0, 1, 1, -1, 0},
{1, -1, 0, 1, 0},
{1, -1, 1, -1, 0},
{1, 0, 1, 0, 0},
{0, 0, 0, 0, 1},
{0, 0, 1, 0, -1},
}}

Definition at line 15 of file blend_filter_contents.h.

Referenced by impeller::AtlasContents::Render().

## ◆ kPrecomputedDivisionCount

constexpr int impeller::kPrecomputedDivisionCount = 1024
| static constexpr

Definition at line 227 of file tessellator.cc.

Referenced by ComputeQuadrantDivisions().

## ◆ kPrecomputedDivisions

int impeller::kPrecomputedDivisions[kPrecomputedDivisionCount]
| static

Definition at line 228 of file tessellator.cc.

Referenced by ComputeQuadrantDivisions().

## ◆ kPropertiesProcTable

const auto impeller::kPropertiesProcTable
| static

Definition at line 70 of file aiks_playground_inspector.cc.

## ◆ kPropertiesWindowName

const char* impeller::kPropertiesWindowName = "Properties"
| static

Definition at line 18 of file aiks_playground_inspector.cc.

## ◆ kScaleSize

constexpr Scalar impeller::kScaleSize = 100000.0f
| static constexpr

Definition at line 39 of file text_frame_skia.cc.

Referenced by MakeTextFrameFromTextBlobSkia().

## ◆ kSkipTests

const std::vector<std::string> impeller::kSkipTests
| static

Definition at line 21 of file golden_playground_test_mac.cc.

Referenced by impeller::GoldenPlaygroundTest::SetUp().

## ◆ kSqrt2

constexpr float impeller::kSqrt2 = 1.41421356237309504880f
| constexpr

Definition at line 47 of file constants.h.

## ◆ kSupportedDocuments

const std::initializer_list<std::string> impeller::kSupportedDocuments
| static

Initial value:
= {
EntityPass::kCaptureDocumentName}

Definition at line 20 of file aiks_playground_inspector.cc.

Referenced by impeller::AiksInspector::RenderInspector().

## ◆ kTextureBorderClampExt

const constexpr char* impeller::kTextureBorderClampExt
| static constexpr

Initial value:
=
"GL_EXT_texture_border_clamp"

Definition at line 15 of file capabilities_gles.cc.

Referenced by impeller::CapabilitiesGLES::CapabilitiesGLES().

## ◆ kUnusedAttachmentReference

constexpr vk::AttachmentReference impeller::kUnusedAttachmentReference
| static constexpr

Initial value:
= {
VK_ATTACHMENT_UNUSED, vk::ImageLayout::eUndefined}

Definition at line 493 of file formats_vk.h.

Referenced by CreateCompatRenderPassForPipeline().

## ◆ kVectorKeys

constexpr const char* impeller::kVectorKeys = "keys"
| static constexpr

Definition at line 18 of file archive_vector.cc.

Referenced by impeller::ArchiveVector::Read(), and impeller::ArchiveVector::Write().

## ◆ sLastID

std::atomic_size_t impeller::sLastID
| static

Definition at line 11 of file comparable.cc.

## ◆ sValidationLogsAreFatal

bool impeller::sValidationLogsAreFatal = false
| static

Definition at line 14 of file validation.cc.

Referenced by ImpellerValidationBreak(), and ImpellerValidationErrorsSetFatal().

## ◆ sValidationLogsDisabledCount

std::atomic_int32_t impeller::sValidationLogsDisabledCount = 0
| static

Definition at line 13 of file validation.cc.

Referenced by impeller::ScopedValidationDisable::ScopedValidationDisable(), impeller::ScopedValidationDisable::~ScopedValidationDisable(), and impeller::ValidationLog::~ValidationLog().

## ◆ tess

Tessellator impeller::tess
| static

Definition at line 23 of file geometry_benchmarks.cc.

Referenced by BM_Convex(), and BM_Polyline().

## ◆ tls_command_pool_map

FML_THREAD_LOCAL fml::ThreadLocalUniquePtr<CommandPoolMap> impeller::tls_command_pool_map

Definition at line 132 of file command_pool_vk.cc.

Referenced by impeller::CommandPoolRecyclerVK::DestroyThreadLocalPools(), impeller::CommandPoolRecyclerVK::Dispose(), and impeller::CommandPoolRecyclerVK::Get().

impeller::OptionalDeviceExtensionVK
OptionalDeviceExtensionVK
Definition: capabilities_vk.h:22
impeller::StoreAction::kMultisampleResolve
@ kMultisampleResolve
impeller::PixelFormat::kS8UInt
@ kS8UInt
impeller::TextureType::kTextureExternalOES
@ kTextureExternalOES
impeller::BlendSelectValues::kSaturation
@ kSaturation
impeller::kBoolean
@ kBoolean
Definition: runtime_types.h:22
impeller::kFloat
@ kFloat
Definition: runtime_types.h:32
impeller::kResetTransform
@ kResetTransform
Definition: canvas_recorder.h:25
impeller::DeepComparePointer
bool DeepComparePointer(const std::shared_ptr< ComparableType > &lhs, const std::shared_ptr< ComparableType > &rhs)
Definition: comparable.h:57
impeller::OptionsFromPass
ContentContextOptions OptionsFromPass(const RenderPass &pass)
Definition: contents.cc:20
DEBUG_COMMAND_INFO
#define DEBUG_COMMAND_INFO(obj, arg)
Definition: command.h:28
impeller::ToVKSampleCount
constexpr vk::SampleCountFlagBits ToVKSampleCount(SampleCount sample_count)
Definition: formats_vk.h:204
impeller::SetViewportAndScissor
static void SetViewportAndScissor(const Command &command, const vk::CommandBuffer &cmd_buffer, PassBindingsCache &cmd_buffer_cache, const ISize &target_size)
Definition: render_pass_vk.cc:343
impeller::GetShaderType
static ShaderType GetShaderType(RuntimeUniformType type)
Definition: runtime_effect_contents.cc:44
impeller::kPreConcat
@ kPreConcat
Definition: canvas_recorder.h:28
impeller::kDrawImage
@ kDrawImage
Definition: canvas_recorder.h:40
impeller::CompareFunction::kGreater
@ kGreater
Comparison test passes if new_value > current_value.
impeller::PrimitiveType::kLineStrip
@ kLineStrip
impeller::LoadAction::kLoad
@ kLoad
impeller::ToMTLColorWriteMask
constexpr MTLColorWriteMask ToMTLColorWriteMask(std::underlying_type_t< ColorWriteMask > type)
Definition: formats_mtl.h:210
impeller::VKClearValueFromDepthStencil
static vk::ClearDepthStencilValue VKClearValueFromDepthStencil(uint32_t stencil, Scalar depth)
Definition: render_pass_vk.cc:223
impeller::HandleType::kRenderBuffer
@ kRenderBuffer
impeller::ConfigureStencil
void ConfigureStencil(const ProcTableGLES &gl, const PipelineDescriptor &pipeline, uint32_t stencil_reference)
Definition: render_pass_gles.cc:96
impeller::BlendModeToString
const char * BlendModeToString(BlendMode blend_mode)
Definition: color.cc:47
impeller::kClipPath
@ kClipPath
Definition: canvas_recorder.h:42
impeller::BlendMode::kDestinationATop
@ kDestinationATop
impeller::PixelFormatIsDepthStencil
constexpr bool PixelFormatIsDepthStencil(PixelFormat format)
Definition: formats_vk.h:373
impeller::StencilOperation::kDecrementClamp
@ kDecrementClamp
Decrement the current stencil value by 1. Clamp it to zero.
impeller::ColorWriteMask
ColorWriteMask
Definition: formats.h:433
impeller::gHasValidationLayers
static bool gHasValidationLayers
Definition: context_vk.cc:41
impeller::StoreAction::kStoreAndMultisampleResolve
@ kStoreAndMultisampleResolve
impeller::ColorToString
std::string ColorToString(const Color &color)
Definition: color.cc:398
impeller::TextureUsageMask
uint64_t TextureUsageMask
Definition: formats.h:295
impeller::ShaderType::kAtomicCounter
@ kAtomicCounter
impeller::ConfigureColorAttachment
static bool ConfigureColorAttachment(const ColorAttachment &desc, MTLRenderPassColorAttachmentDescriptor *attachment)
Definition: render_pass_mtl.mm:72
impeller::ToVmaAllocationBufferCreateFlags
static VmaAllocationCreateFlags ToVmaAllocationBufferCreateFlags(StorageMode mode)
Definition: allocator_vk.cc:32
impeller::IndexType::k16bit
@ k16bit
impeller::PixelFormatToString
constexpr const char * PixelFormatToString(PixelFormat format)
Definition: formats.h:135
impeller::Scalar
float Scalar
Definition: scalar.h:18
impeller::BlendSelectValues::kColorBurn
@ kColorBurn
impeller::Font
Describes a typeface along with any modifications to its intrinsic properties.
Definition: font.h:22
impeller::BlendSelectValues::kMultiply
@ kMultiply
impeller::kUnsignedShort
@ kUnsignedShort
Definition: runtime_types.h:26
impeller::DeviceSupportsComputeSubgroups
static bool DeviceSupportsComputeSubgroups(id< MTLDevice > device)
Definition: context_mtl.mm:43
impeller::PixelFormat::kB10G10R10A10XR
@ kB10G10R10A10XR
impeller::PixelFormat::kB8G8R8A8UNormIntSRGB
@ kB8G8R8A8UNormIntSRGB
impeller::ConfigureStencilAttachment
static bool ConfigureStencilAttachment(const StencilAttachment &desc, MTLRenderPassStencilAttachmentDescriptor *attachment)
Definition: render_pass_mtl.mm:92
impeller::kConcat
@ kConcat
Definition: canvas_recorder.h:27
impeller::SafeMTLPixelFormatBGRA10_XR
MTLPixelFormat SafeMTLPixelFormatBGRA10_XR()
Definition: formats_mtl.mm:138
impeller::PixelFormat::kA8UNormInt
@ kA8UNormInt
impeller::ToVKBlendFactor
constexpr vk::BlendFactor ToVKBlendFactor(BlendFactor factor)
Definition: formats_vk.h:29
impeller::kDrawPicture
@ kDrawPicture
Definition: canvas_recorder.h:45
impeller::DeleteFBO
static void DeleteFBO(const ProcTableGLES &gl, GLuint fbo, GLenum type)
Definition: blit_command_gles.cc:16
impeller::BlendFactor::kSourceAlphaSaturated
@ kSourceAlphaSaturated
impeller::ReportPipelineCreationFeedbackToTrace
static void ReportPipelineCreationFeedbackToTrace(const PipelineDescriptor &desc, const vk::PipelineCreationFeedbackCreateInfoEXT &feedback)
Definition: pipeline_library_vk.cc:224
impeller::FillType::kOdd
@ kOdd
impeller::NearZero
static bool NearZero(Scalar a)
Definition: path_component.cc:249
impeller::compiler::SourceType::kUnknown
@ kUnknown
impeller::PixelFormat::kR8UNormInt
@ kR8UNormInt
impeller::HeapRealloc
static void * HeapRealloc(void *userData, void *ptr, unsigned int size)
Definition: tessellator.cc:15
impeller::ReportPipelineCreationFeedbackToLog
static void ReportPipelineCreationFeedbackToLog(const PipelineDescriptor &desc, const vk::PipelineCreationFeedbackCreateInfoEXT &feedback)
Definition: pipeline_library_vk.cc:199
impeller::ToImageFilter
static std::shared_ptr< ImageFilter > ToImageFilter(const flutter::DlImageFilter *filter)
Definition: dl_dispatcher.cc:525
impeller::CompareFunction::kEqual
@ kEqual
Comparison test passes if new_value == current_value.
impeller::ToVKDescriptorType
constexpr vk::DescriptorType ToVKDescriptorType(DescriptorType type)
Definition: formats_vk.h:269
impeller::BlendFactor::kOneMinusSourceAlpha
@ kOneMinusSourceAlpha
impeller::kEhCloseEnough
constexpr float kEhCloseEnough
Definition: constants.h:56
impeller::CompareFunction::kGreaterEqual
@ kGreaterEqual
Comparison test passes if new_value >= current_value.
impeller::ToBlendFactor
constexpr GLenum ToBlendFactor(BlendFactor factor)
Definition: formats_gles.h:91
impeller::ToMTLStencilOperation
constexpr MTLStencilOperation ToMTLStencilOperation(StencilOperation op)
Definition: formats_mtl.h:257
impeller::StencilOperation::kKeep
@ kKeep
Don't modify the current stencil value.
impeller::TextureDescriptor::format
PixelFormat format
Definition: texture_descriptor.h:40
impeller::kScaleSize
static constexpr Scalar kScaleSize
Definition: text_frame_skia.cc:39
impeller::HeapFree
static void HeapFree(void *userData, void *ptr)
Definition: tessellator.cc:19
impeller::LoadActionToString
constexpr const char * LoadActionToString(LoadAction action)
Definition: formats.h:210
impeller::BlendMode::kSource
@ kSource
impeller::PixelFormat::kR8G8B8A8UNormInt
@ kR8G8B8A8UNormInt
impeller::BlendMode::kDestination
@ kDestination
impeller::CreatePlaceholderAttachmentDescription
static vk::AttachmentDescription CreatePlaceholderAttachmentDescription(PixelFormat format, SampleCount sample_count)
Creates an attachment description that does just enough to ensure render pass compatibility with the ...
Definition: pipeline_library_vk.cc:61
impeller::ColorWriteMask::kGreen
@ kGreen
impeller::PairsFitInAtlasOfSize
static size_t PairsFitInAtlasOfSize(const std::vector< FontGlyphPair > &pairs, const ISize &atlas_size, std::vector< Rect > &glyph_positions, const std::shared_ptr< RectanglePacker > &rect_packer)
Definition: typographer_context_skia.cc:43
impeller::HandleType::kTexture
@ kTexture
impeller::ConfigureAttachment
static bool ConfigureAttachment(const Attachment &desc, MTLRenderPassAttachmentDescriptor *attachment)
Definition: render_pass_mtl.mm:55
impeller::FillType::kAbsGeqTwo
@ kAbsGeqTwo
impeller::HasSuitableDepthStencilFormat
static bool HasSuitableDepthStencilFormat(const vk::PhysicalDevice &device, vk::Format format)
Definition: capabilities_vk.cc:249
impeller::kRotate
@ kRotate
Definition: canvas_recorder.h:33
impeller::PointStyle::kRound
@ kRound
Points are drawn as squares.
impeller::kSignedByte
@ kSignedByte
Definition: runtime_types.h:23
impeller::TextureDescriptor::mip_count
size_t mip_count
Definition: texture_descriptor.h:42
impeller::StencilOperation::kIncrementClamp
@ kIncrementClamp
Increment the current stencil value by 1. Clamp it to the maximum.
impeller::ShaderType::kImage
@ kImage
impeller::ColorWriteMask::kRed
@ kRed
impeller::tess
static Tessellator tess
Definition: geometry_benchmarks.cc:23
impeller::MTLCommandBufferErrorToString
static NSString * MTLCommandBufferErrorToString(MTLCommandBufferError code)
Definition: command_buffer_mtl.mm:36
impeller::Color::alpha
Scalar alpha
Definition: color.h:143
impeller::TextureUsage::kRenderTarget
@ kRenderTarget
impeller::BlendMode::kDestinationOver
@ kDestinationOver
impeller::BlendMode::kPlus
@ kPlus
impeller::BlendSelectValues::kSoftLight
@ kSoftLight
impeller::kSampledImage
@ kSampledImage
Definition: runtime_types.h:34
impeller::SafeMTLPixelFormatDepth24Unorm_Stencil8
MTLPixelFormat SafeMTLPixelFormatDepth24Unorm_Stencil8()
Definition: formats_mtl.mm:113
impeller::skia_conversions::ToColor
Color ToColor(const flutter::DlColor &color)
Definition: skia_conversions.cc:148
impeller::TextureDescriptorToString
std::string TextureDescriptorToString(const TextureDescriptor &desc)
Definition: texture_descriptor.cc:11
impeller::StencilOperation::kInvert
@ kInvert
Perform a logical bitwise invert on the current stencil value.
impeller::ShaderType::kVoid
@ kVoid
impeller::WindingOrder::kClockwise
@ kClockwise
impeller::SamplerAddressMode::kClampToEdge
@ kClampToEdge
impeller::BlendFactor::kDestinationAlpha
@ kDestinationAlpha
impeller::ToMTLStoreAction
constexpr MTLStoreAction ToMTLStoreAction(StoreAction action)
Definition: formats_mtl.h:307
impeller::BlendSelectValues::kDifference
@ kDifference
impeller::IndexType::k32bit
@ k32bit
impeller::StorageMode::kHostVisible
@ kHostVisible
impeller::OptionalDeviceExtensionVK::kEXTPipelineCreationFeedback
@ kEXTPipelineCreationFeedback
impeller::ToMTLCompareFunction
constexpr MTLCompareFunction ToMTLCompareFunction(CompareFunction func)
Definition: formats_mtl.h:235
impeller::LogShaderCompilationFailure
static void LogShaderCompilationFailure(const ProcTableGLES &gl, GLuint shader, const std::string &name, const fml::Mapping &source_mapping, ShaderStage stage)
Definition: pipeline_library_gles.cc:49
impeller::GetShaderSource
static std::string GetShaderSource(const ProcTableGLES &gl, GLuint shader)
Definition: pipeline_library_gles.cc:36
impeller::Cap::kButt
@ kButt
impeller::OptionalDeviceExtensionVK::kARMRasterizationOrderAttachmentAccess
@ kARMRasterizationOrderAttachmentAccess
kColorFontBitsPerPixel
constexpr auto kColorFontBitsPerPixel
Definition: typographer_context_stb.cc:20
impeller::CreateMappingFromAllocation
std::shared_ptr< fml::Mapping > CreateMappingFromAllocation(const std::shared_ptr< Allocation > &allocation)
Definition: allocation.cc:99
impeller::kSave
@ kSave
Definition: canvas_recorder.h:21
impeller::ToVKStencilOpState
constexpr vk::StencilOpState ToVKStencilOpState(const StencilAttachmentDescriptor &desc)
Definition: formats_vk.h:553
impeller::NormalizeUniformKey
static std::string NormalizeUniformKey(const std::string &key)
Definition: buffer_bindings_gles.cc:51
impeller::AttachmentKind::kDepthStencil
@ kDepthStencil
impeller::ToMTLClearColor
MTLClearColor ToMTLClearColor(const Color &color)
Definition: formats_mtl.h:372
UNIMPLEMENTED
#define UNIMPLEMENTED
Definition: dl_dispatcher.cc:36
impeller::ToTileMode
static Entity::TileMode ToTileMode(flutter::DlTileMode tile_mode)
Definition: dl_dispatcher.cc:111
impeller::BlendMode::kModulate
@ kModulate
impeller::PolygonMode::kFill
@ kFill
impeller::StencilOperation::kSetToReferenceValue
@ kSetToReferenceValue
Reset the stencil value to the reference value.
impeller::FillType::kPositive
@ kPositive
impeller::ToVKCompareOp
constexpr vk::CompareOp ToVKCompareOp(CompareFunction op)
Definition: formats_vk.h:508
impeller::Join::kMiter
@ kMiter
impeller::BlendFactor::kSourceColor
@ kSourceColor
impeller::PixelFormat::kD32FloatS8UInt
@ kD32FloatS8UInt
impeller::BlendMode::kSourceOut
@ kSourceOut
impeller::ToMTLDepthStencilDescriptor
MTLDepthStencilDescriptor * ToMTLDepthStencilDescriptor(std::optional< DepthAttachmentDescriptor > depth, std::optional< StencilAttachmentDescriptor > front, std::optional< StencilAttachmentDescriptor > back)
Definition: formats_mtl.mm:54
impeller::Font::GetTypeface
const std::shared_ptr< Typeface > & GetTypeface() const
The typeface whose intrinsic properties this font modifies.
Definition: font.cc:23
impeller::RuntimeShaderStage::kVertex
@ kVertex
impeller::PrimitiveType::kLine
@ kLine
impeller::BlendFactor::kDestinationColor
@ kDestinationColor
impeller::kDrawCircle
@ kDrawCircle
Definition: canvas_recorder.h:38
impeller::CreateAttachmentDescription
constexpr vk::AttachmentDescription CreateAttachmentDescription(PixelFormat format, SampleCount sample_count, LoadAction load_action, StoreAction store_action, vk::ImageLayout current_layout, bool supports_framebuffer_fetch)
Definition: formats_vk.h:429
IPLR_ACQUIRE
#define IPLR_ACQUIRE(...)
Definition: thread_safety.h:36
impeller::ToMatrix
static Matrix ToMatrix(const SkMatrix &m)
Definition: dl_dispatcher.cc:166
impeller::BlendSelectValues::kDarken
@ kDarken
impeller::MinMagFilter::kNearest
@ kNearest
Select nearest to the sample point. Most widely supported.
impeller::ToVKStencilOp
constexpr vk::StencilOp ToVKStencilOp(StencilOperation op)
Definition: formats_vk.h:530
impeller::SamplerDescriptor::mag_filter
MinMagFilter mag_filter
Definition: sampler_descriptor.h:17
impeller::TextureCoordinateSystem::kUploadFromHost
@ kUploadFromHost
impeller::SamplerDescriptor
Definition: sampler_descriptor.h:15
impeller::kColor
@ kColor
Definition: geometry.h:36
impeller::PrimitiveType::kTriangle
@ kTriangle
impeller::UpdateBindingLayouts
static bool UpdateBindingLayouts(const std::vector< ComputeCommand > &commands, const vk::CommandBuffer &buffer)
Definition: compute_pass_vk.cc:60
impeller::BlendSelectValues::kExclusion
@ kExclusion
impeller::BlendFactor::kZero
@ kZero
impeller::TextureType::kTexture2DMultisample
@ kTexture2DMultisample
impeller::ConfigureDepthAttachment
static bool ConfigureDepthAttachment(const DepthAttachment &desc, MTLRenderPassDepthAttachmentDescriptor *attachment)
Definition: render_pass_mtl.mm:82
impeller::TextureCoordinateSystem::kRenderToTexture
@ kRenderToTexture
impeller::ToSamplerDescriptor
static impeller::SamplerDescriptor ToSamplerDescriptor(const flutter::DlFilterMode options)
Definition: dl_dispatcher.cc:148
impeller::kDrawTextFrame
@ kDrawTextFrame
Definition: canvas_recorder.h:46
impeller::kSignedInt
@ kSignedInt
Definition: runtime_types.h:27
impeller::ToIndexType
constexpr GLenum ToIndexType(IndexType type)
Definition: formats_gles.h:34
impeller::LoadAction::kClear
@ kClear
impeller::StencilOperation::kDecrementWrap
@ kDecrementWrap
Decrement the current stencil value by 1. If at zero, set to maximum.
impeller::BlendFactor::kOneMinusDestinationColor
@ kOneMinusDestinationColor
impeller::kPrecomputedDivisions
static int kPrecomputedDivisions[kPrecomputedDivisionCount]
Definition: tessellator.cc:228
impeller::PointStyle::kSquare
@ kSquare
Points are drawn as circles.
impeller::PrimitiveType::kTriangleStrip
@ kTriangleStrip
impeller::RuntimeShaderStage::kFragment
@ kFragment
impeller::SamplerDescriptor::min_filter
MinMagFilter min_filter
Definition: sampler_descriptor.h:16
impeller::ToCompareFunction
constexpr GLenum ToCompareFunction(CompareFunction func)
Definition: formats_gles.h:69
impeller::kScale2
@ kScale2
Definition: canvas_recorder.h:30
impeller::StorageMode::kDeviceTransient
@ kDeviceTransient
impeller::Point
TPoint< Scalar > Point
Definition: point.h:308
impeller::CullMode::kBackFace
@ kBackFace
impeller::ToMTLLoadAction
constexpr MTLLoadAction ToMTLLoadAction(LoadAction action)
Definition: formats_mtl.h:279
impeller::TRect::Intersection
constexpr std::optional< TRect< T > > Intersection(const TRect &o) const
Definition: rect.h:312
impeller::CullMode::kNone
@ kNone
impeller::ToMTLBlendOperation
constexpr MTLBlendOperation ToMTLBlendOperation(BlendOperation type)
Definition: formats_mtl.h:198
impeller::ToMTLStencilDescriptor
MTLStencilDescriptor * ToMTLStencilDescriptor(const StencilAttachmentDescriptor &descriptor)
Definition: formats_mtl.mm:38
impeller::ToVKImageFormat
constexpr vk::Format ToVKImageFormat(PixelFormat format)
Definition: formats_vk.h:136
impeller::OptionalDeviceExtensionVK::kEXTRasterizationOrderAttachmentAccess
@ kEXTRasterizationOrderAttachmentAccess
impeller::BlendOperation::kReverseSubtract
@ kReverseSubtract
impeller::ToVKIndexType
constexpr vk::IndexType ToVKIndexType(IndexType index_type)
Definition: formats_vk.h:331
IPLR_RELEASE
#define IPLR_RELEASE(...)
Definition: thread_safety.h:42
impeller::Tessellator::TessellateConvex
std::vector< Point > TessellateConvex(const Path &path, Scalar tolerance)
Given a convex path, create a triangle fan structure.
Definition: tessellator.cc:173
impeller::BlendFactor::kBlendAlpha
@ kBlendAlpha
impeller::UpdateBindingLayouts
static bool UpdateBindingLayouts(const std::vector< Command > &commands, const vk::CommandBuffer &buffer)
Definition: render_pass_vk.cc:333
impeller::compiler::TargetPlatform::kVulkan
@ kVulkan
impeller::SPrintF
std::string SPrintF(const char *format,...)
Definition: strings.cc:12
impeller::AttachmentKind::kStencil
@ kStencil
impeller::PrimitiveType::kPoint
@ kPoint
Draws a point at each input vertex.
impeller::ToVertexMode
static VerticesGeometry::VertexMode ToVertexMode(flutter::DlVertexMode mode)
Definition: dl_vertices_geometry.cc:20
impeller::PixelFormat::kR8G8UNormInt
@ kR8G8UNormInt
impeller::AttachmentKindFromFormat
constexpr AttachmentKind AttachmentKindFromFormat(PixelFormat format)
Definition: formats_vk.h:404
impeller::ContainsFormat
static bool ContainsFormat(const std::vector< vk::SurfaceFormatKHR > &formats, vk::SurfaceFormatKHR format)
Definition: swapchain_impl_vk.cc:79
impeller::gShouldOpenNewPlaygrounds
static std::atomic_bool gShouldOpenNewPlaygrounds
Definition: playground.cc:150
impeller::ToMTLRenderPipelineColorAttachmentDescriptor
MTLRenderPipelineColorAttachmentDescriptor * ToMTLRenderPipelineColorAttachmentDescriptor(ColorAttachmentDescriptor descriptor)
Definition: formats_mtl.mm:15
impeller::DeviceSupportsFramebufferFetch
static bool DeviceSupportsFramebufferFetch(id< MTLDevice > device)
Definition: context_mtl.mm:23
impeller::YUVColorSpace::kBT601FullRange
@ kBT601FullRange
impeller::ToMode
constexpr GLenum ToMode(PrimitiveType primitive_type)
Definition: formats_gles.h:18
impeller::BlendOperation::kAdd
@ kAdd
impeller::ShaderType::kSampler
@ kSampler
impeller::MinMagFilter::kLinear
@ kLinear
impeller::StorageMode::kDevicePrivate
@ kDevicePrivate
impeller::StorageModeToString
constexpr const char * StorageModeToString(StorageMode mode)
Definition: formats.h:55
impeller::BlendFactor::kBlendColor
@ kBlendColor
impeller::kDrawRect
@ kDrawRect
Definition: canvas_recorder.h:36
impeller::CreateAttachmentDescription
static vk::AttachmentDescription CreateAttachmentDescription(const Attachment &attachment, const std::shared_ptr< Texture > Attachment::*texture_ptr, bool supports_framebuffer_fetch)
Definition: render_pass_vk.cc:31
impeller::ColorMatrix::array
Scalar array[20]
Definition: color.h:118
impeller::PixelFormat::kB10G10R10XR
@ kB10G10R10XR
impeller::CompressionType::kLossless
@ kLossless
impeller::AttachmentToString
std::string AttachmentToString(const Attachment &attachment)
Definition: formats.cc:104
impeller::TextureUsage::kShaderRead
@ kShaderRead
impeller::PixelFormat::kD24UnormS8Uint
@ kD24UnormS8Uint
impeller::kSkew
@ kSkew
Definition: canvas_recorder.h:32
impeller::kClipRRect
@ kClipRRect
Definition: canvas_recorder.h:44
impeller::WindingOrder::kCounterClockwise
@ kCounterClockwise
impeller::GetDefaultStencilConfig
static RenderTarget::AttachmentConfig GetDefaultStencilConfig(bool readable)
Definition: entity_pass.cc:241
impeller::BlendFactor::kOneMinusBlendColor
@ kOneMinusBlendColor
InternalHalf
_Float16 InternalHalf
Definition: half.h:22
impeller::TRect::Scale
constexpr TRect Scale(Type scale) const
Definition: rect.h:108
impeller::StencilOperation::kIncrementWrap
@ kIncrementWrap
Increment the current stencil value by 1. If at maximum, set to zero.
impeller::TextureType::kTextureCube
@ kTextureCube
impeller::FillType
FillType
Definition: path.h:30
impeller::kDrawImageRect
@ kDrawImageRect
Definition: canvas_recorder.h:41
impeller::kUnsignedByte
@ kUnsignedByte
Definition: runtime_types.h:24
impeller::kUnsignedInt64
@ kUnsignedInt64
Definition: runtime_types.h:30
impeller::PixelFormat::kR16G16B16A16Float
@ kR16G16B16A16Float
impeller::ScalarNearlyZero
constexpr bool ScalarNearlyZero(Scalar x, Scalar tolerance=kEhCloseEnough)
Definition: scalar.h:25
impeller::AttachmentKind::kDepth
@ kDepth
impeller::StoreAction::kStore
@ kStore
impeller::ToVkShaderStage
constexpr vk::ShaderStageFlags ToVkShaderStage(ShaderStage stage)
Definition: formats_vk.h:254
impeller::CompressionTypeToString
constexpr const char * CompressionTypeToString(CompressionType type)
Definition: texture_descriptor.h:23
impeller::Absolute
constexpr T Absolute(const T &val)
Definition: scalar.h:21
impeller::Rect
TRect< Scalar > Rect
Definition: rect.h:488
impeller::kHalfFloat
@ kHalfFloat
Definition: runtime_types.h:31
impeller::CompareFunction::kLessEqual
@ kLessEqual
Comparison test passes if new_value <= current_value.
impeller::BlendFactor::kOne
@ kOne
impeller::Luminosity
static constexpr Scalar Luminosity(Vector3 color)
Definition: color.cc:140
impeller::BindBuffers
static bool BindBuffers(const Bindings &bindings, Allocator &allocator, const std::shared_ptr< CommandEncoderVK > &encoder, vk::DescriptorSet &vk_desc_set, const std::vector< DescriptorSetLayout > &desc_set, std::vector< vk::DescriptorBufferInfo > &buffers, std::vector< vk::WriteDescriptorSet > &writes)
Definition: binding_helpers_vk.cc:63
impeller::BlendFactor::kOneMinusBlendAlpha
@ kOneMinusBlendAlpha
impeller::CompressionType::kLossy
@ kLossy
impeller::kUnsignedInt
@ kUnsignedInt
Definition: runtime_types.h:28
impeller::DebugResourceType::kShader
@ kShader
impeller::ToFont
static Font ToFont(const SkTextBlobRunIterator &run)
Definition: text_frame_skia.cc:19
impeller::kTransform
@ kTransform
Definition: canvas_recorder.h:26
impeller::AppendColor
static void AppendColor(const Color &color, GradientData *data)
Definition: gradient.cc:12
impeller::CompareFunction::kAlways
@ kAlways
Comparison test passes always passes.
impeller::kDrawAtlas
@ kDrawAtlas
Definition: canvas_recorder.h:48
impeller::skia_conversions::ToPoint
Point ToPoint(const SkPoint &point)
Definition: skia_conversions.cc:140
impeller::kPadding
constexpr auto kPadding
Definition: typographer_context_skia.cc:28
impeller::YUVColorSpace::kBT601LimitedRange
@ kBT601LimitedRange
impeller::ConfigureResolveTextureAttachment
static bool ConfigureResolveTextureAttachment(const Attachment &desc, MTLRenderPassAttachmentDescriptor *attachment)
Definition: render_pass_mtl.mm:26
impeller::kSignedShort
@ kSignedShort
Definition: runtime_types.h:25
impeller::TextureType::kTexture2D
@ kTexture2D
impeller::FillType::kNonZero
@ kNonZero
impeller::PixelFormat::kR32G32B32A32Float
@ kR32G32B32A32Float
impeller::DescriptorType::kUniformBuffer
@ kUniformBuffer
impeller::ToVKAttachmentStoreOp
constexpr vk::AttachmentStoreOp ToVKAttachmentStoreOp(StoreAction store_action)
Definition: formats_vk.h:316
impeller::SamplerDescriptor::mip_filter
MipFilter mip_filter
Definition: sampler_descriptor.h:18
IMPELLER_FOR_EACH_BLEND_MODE
#define IMPELLER_FOR_EACH_BLEND_MODE(V)
Definition: color.h:19
impeller::HandleType::kProgram
@ kProgram
impeller::kDrawPaint
@ kDrawPaint
Definition: canvas_recorder.h:35
impeller::TPoint::x
Type x
Definition: point.h:25
impeller::VerifyExistingCache
static bool VerifyExistingCache(const fml::Mapping &mapping, const CapabilitiesVK &caps)
Definition: pipeline_cache_vk.cc:19
impeller::kNew
@ kNew
Definition: canvas_recorder.h:20
impeller::kUV
@ kUV
Definition: geometry.h:37
impeller::ToMTLPixelFormat
constexpr MTLPixelFormat ToMTLPixelFormat(PixelFormat format)
Definition: formats_mtl.h:77
impeller::CompareFunction::kNever
@ kNever
Comparison test never passes.
impeller::SafeMTLPixelFormatBGR10_XR
MTLPixelFormat SafeMTLPixelFormatBGR10_XR()
Definition: formats_mtl.mm:130
impeller::StripPrefix
std::string StripPrefix(const std::string &string, const std::string &to_strip)
Definition: strings.cc:42
impeller::ISize
TSize< int64_t > ISize
Definition: size.h:138
impeller::kMagicSubpassInputBinding
static constexpr size_t kMagicSubpassInputBinding
Definition: binding_helpers_vk.cc:24
impeller::kSaveLayer
@ kSaveLayer
Definition: canvas_recorder.h:22
impeller::HeapAlloc
static void * HeapAlloc(void *userData, unsigned int size)
Definition: tessellator.cc:11
impeller::TextureDescriptor::size
ISize size
Definition: texture_descriptor.h:41
impeller::ToVKAttachmentLoadOp
constexpr vk::AttachmentLoadOp ToVKAttachmentLoadOp(LoadAction load_action)
Definition: formats_vk.h:303
impeller::NearEqual
static bool NearEqual(Scalar a, Scalar b, Scalar epsilon)
Definition: path_component.cc:245
impeller::BlendMode::kDestinationIn
@ kDestinationIn
impeller::ToMTLTextureType
constexpr MTLTextureType ToMTLTextureType(TextureType type)
Definition: formats_mtl.h:376
impeller::Join::kBevel
@ kBevel
VALIDATION_LOG
#define VALIDATION_LOG
Definition: validation.h:67
impeller::CullMode::kFrontFace
@ kFrontFace
_IMPELLER_ASSERT_BLEND_MODE
#define _IMPELLER_ASSERT_BLEND_MODE(blend_mode)
Definition: color.cc:20
impeller::TextureTypeToString
constexpr const char * TextureTypeToString(TextureType type)
Definition: formats.h:264
impeller::BlendMode::kDestinationOut
@ kDestinationOut
impeller::ShaderType::kStruct
@ kStruct
impeller::ClipColor
static constexpr Vector3 ClipColor(Vector3 color)
Definition: color.cc:144
impeller::ColorWriteMask::kAll
@ kAll
impeller::PixelFormat::kR8G8B8A8UNormIntSRGB
@ kR8G8B8A8UNormIntSRGB
impeller::SafeMTLPixelFormatBGR10_XR_sRGB
MTLPixelFormat SafeMTLPixelFormatBGR10_XR_sRGB()
Definition: formats_mtl.mm:122
impeller::SamplerAddressMode::kMirror
@ kMirror
impeller::RemoveMetadataFromCache
static std::unique_ptr< fml::Mapping > RemoveMetadataFromCache(std::unique_ptr< fml::Mapping > data)
Definition: pipeline_cache_vk.cc:29
impeller::kDouble
@ kDouble
Definition: runtime_types.h:33
impeller::HasSuitableColorFormat
static bool HasSuitableColorFormat(const vk::PhysicalDevice &device, vk::Format format)
Definition: capabilities_vk.cc:241
impeller::kDrawPoints
@ kDrawPoints
Definition: canvas_recorder.h:39
impeller::BlendSelectValues::kHardLight
@ kHardLight
impeller::ConfigureBlending
void ConfigureBlending(const ProcTableGLES &gl, const ColorAttachmentDescriptor *color)
Definition: render_pass_gles.cc:43
impeller::LoadAction::kDontCare
@ kDontCare
impeller::kSignedInt64
@ kSignedInt64
Definition: runtime_types.h:29
impeller::BlendSelectValues::kScreen
@ kScreen
DISABLE_COLOR_FONT_SUPPORT
#define DISABLE_COLOR_FONT_SUPPORT
Definition: typographer_context_stb.cc:18
impeller::BindImages
static bool BindImages(const Bindings &bindings, Allocator &allocator, const std::shared_ptr< CommandEncoderVK > &encoder, vk::DescriptorSet &vk_desc_set, std::vector< vk::DescriptorImageInfo > &images, std::vector< vk::WriteDescriptorSet > &writes)
Definition: binding_helpers_vk.cc:26
impeller::Tessellator::Tessellate
Tessellator::Result Tessellate(const Path &path, Scalar tolerance, const BuilderCallback &callback)
Generates filled triangles from the path. A callback is invoked once for the entire tessellation.
Definition: tessellator.cc:64
impeller::ToMTLBlendFactor
constexpr MTLBlendFactor ToMTLBlendFactor(BlendFactor type)
Definition: formats_mtl.h:115
impeller::BlendFactor::kOneMinusSourceColor
@ kOneMinusSourceColor
impeller::HasPrefix
bool HasPrefix(const std::string &string, const std::string &prefix)
Definition: strings.cc:30
impeller::compiler::TargetPlatform::kOpenGLES
@ kOpenGLES
impeller::BlendSelectValues::kLighten
@ kLighten
impeller::MipFilter::kLinear
@ kLinear
impeller::BlendMode::kSourceIn
@ kSourceIn
impeller::RuntimeShaderStage::kCompute
@ kCompute
impeller::FromMTLPixelFormat
constexpr PixelFormat FromMTLPixelFormat(MTLPixelFormat format)
Definition: formats_mtl.h:23
impeller::kUnusedAttachmentReference
static constexpr vk::AttachmentReference kUnusedAttachmentReference
Definition: formats_vk.h:493
impeller::ScalarNearlyEqual
constexpr bool ScalarNearlyEqual(Scalar x, Scalar y, Scalar tolerance=kEhCloseEnough)
Definition: scalar.h:30
impeller::SamplerDescriptor::label
std::string label
Definition: sampler_descriptor.h:24
impeller::ToBlendMode
static BlendMode ToBlendMode(flutter::DlBlendMode mode)
Definition: dl_dispatcher.cc:47
impeller::sValidationLogsAreFatal
static bool sValidationLogsAreFatal
Definition: validation.cc:14
impeller::ColorWriteMask::kAlpha
@ kAlpha
impeller::ColorWriteMask::kBlue
@ kBlue
impeller::FromRGB
static constexpr Color FromRGB(Vector3 color, Scalar alpha)
Definition: color.cc:192
impeller::BlendMode::kLast
@ kLast
impeller::SampleCount::kCount1
@ kCount1
impeller::BlendSelectValues::kHue
@ kHue
impeller::SampleCount::kCount4
@ kCount4
impeller::BlendSelectValues::kLuminosity
@ kLuminosity
impeller::FillType::kNegative
@ kNegative
impeller::TextureDescriptor::storage_mode
StorageMode storage_mode
Definition: texture_descriptor.h:38
impeller::UseSubpassInput::kYes
@ kYes
impeller::kPrecomputedDivisionCount
static constexpr int kPrecomputedDivisionCount
Definition: tessellator.cc:227
impeller::kScale3
@ kScale3
Definition: canvas_recorder.h:31
impeller::DrawGlyph
static void DrawGlyph(BitmapSTB *bitmap, const ScaledFont &scaled_font, const Glyph &glyph, const Rect &location, bool has_color)
Definition: typographer_context_stb.cc:198
impeller::StoreActionToString
constexpr const char * StoreActionToString(StoreAction action)
Definition: formats.h:221
impeller::DescriptorType::kInputAttachment
@ kInputAttachment
impeller::ToColorFilter
static std::shared_ptr< ColorFilter > ToColorFilter(const flutter::DlColorFilter *filter)
Definition: dl_dispatcher.cc:445
impeller::TextureDescriptor
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...
Definition: texture_descriptor.h:37
impeller::ToBlendOperation
constexpr GLenum ToBlendOperation(BlendOperation op)
Definition: formats_gles.h:127
IMPELLER_GL_CLAMP_TO_BORDER
#define IMPELLER_GL_CLAMP_TO_BORDER
Definition: gles.h:12
impeller::kBlendModeNames
static constexpr const char * kBlendModeNames[]
Definition: color.cc:44
impeller::CompareFunction::kNotEqual
@ kNotEqual
Comparison test passes if new_value != current_value.
impeller::HandleType::kFrameBuffer
@ kFrameBuffer
impeller::PixelFormat::kB10G10R10XRSRGB
@ kB10G10R10XRSRGB
impeller::UseSubpassInput::kNo
@ kNo
impeller::ToVKBlendOp
constexpr vk::BlendOp ToVKBlendOp(BlendOperation op)
Definition: formats_vk.h:65
impeller::BlendMode::kXor
@ kXor
impeller::HandleType::kBuffer
@ kBuffer
impeller::Convexity::kConvex
@ kConvex
impeller::kDrawVertices
@ kDrawVertices
Definition: canvas_recorder.h:47
impeller::PixelFormat::kB8G8R8A8UNormInt
@ kB8G8R8A8UNormInt
impeller::BlendFactor::kSourceAlpha
@ kSourceAlpha
impeller::AttachmentTypeString
static const char * AttachmentTypeString(GLint type)
Definition: proc_table_gles.cc:220
impeller::ToVKBufferMemoryPropertyFlags
static constexpr vk::Flags< vk::MemoryPropertyFlagBits > ToVKBufferMemoryPropertyFlags(StorageMode mode)
Definition: allocator_vk.cc:20
impeller::kDrawPath
@ kDrawPath
Definition: canvas_recorder.h:34
impeller::kDrawRRect
@ kDrawRRect
Definition: canvas_recorder.h:37
impeller::ColorMatrix
Definition: color.h:117
impeller::GetShaderInfoLog
static std::string GetShaderInfoLog(const ProcTableGLES &gl, GLuint shader)
Definition: pipeline_library_gles.cc:22
impeller::ToStencilOp
constexpr GLenum ToStencilOp(StencilOperation op)
Definition: formats_gles.h:47
impeller::RuntimeStageBackend::kMetal
@ kMetal
impeller::ToRect
static Rect ToRect(const SkRect &rect)
Definition: text_frame_skia.cc:35
impeller::TextureUsage::kShaderWrite
@ kShaderWrite
impeller::TextureUsageToString
constexpr const char * TextureUsageToString(TextureUsage usage)
Definition: formats.h:308
impeller::CompareFunction::kLess
@ kLess
Comparison test passes if new_value < current_value.
impeller::kRestore
@ kRestore
Definition: canvas_recorder.h:23
impeller::BlendMode::kSourceATop
@ kSourceATop
impeller::kPosition
@ kPosition
Definition: geometry.h:35
impeller::kPiOver4
constexpr float kPiOver4
Definition: constants.h:35
impeller::BlendSelectValues::kColorDodge
@ kColorDodge
impeller::BlendOperation::kSubtract
@ kSubtract
impeller::kTranslate
@ kTranslate
Definition: canvas_recorder.h:29
impeller::Color::Premultiply
constexpr Color Premultiply() const
Definition: color.h:214
impeller::DrawGlyph
static void DrawGlyph(SkCanvas *canvas, const ScaledFont &scaled_font, const Glyph &glyph, const Rect &location, bool has_color)
Definition: typographer_context_skia.cc:155
impeller::BlendMode::kSourceOver
@ kSourceOver
impeller::DebugToFramebufferError
std::string DebugToFramebufferError(int status)
Definition: formats_gles.cc:9
impeller::BlendSelectValues::kOverlay
@ kOverlay
impeller::BlendFactor::kOneMinusDestinationAlpha
@ kOneMinusDestinationAlpha
impeller::kClipRect
@ kClipRect
Definition: canvas_recorder.h:43
impeller::VKClearValueFromColor
static vk::ClearColorValue VKClearValueFromColor(Color color)
Definition: render_pass_vk.cc:216
impeller::compiler::TargetPlatform::kSkSL
@ kSkSL
impeller::DescriptorType::kStorageBuffer
@ kStorageBuffer
impeller::ToVKColorComponentFlags
constexpr vk::ColorComponentFlags ToVKColorComponentFlags(std::underlying_type_t< ColorWriteMask > type)
Definition: formats_vk.h:77
impeller::kRestoreToCount
@ kRestoreToCount
Definition: canvas_recorder.h:24
impeller::ToRGB
static constexpr Vector3 ToRGB(Color color)
Definition: color.cc:188
_IMPELLER_BLEND_MODE_NAME_LIST
#define _IMPELLER_BLEND_MODE_NAME_LIST(blend_mode)
Definition: color.cc:42
impeller::SamplerAddressMode::kRepeat
@ kRepeat
impeller::SamplerAddressMode::kDecal
@ kDecal
decal sampling mode is only supported on devices that pass the Capabilities.SupportsDecalSamplerAddre...