impeller::TexImage2DData Struct Reference

Public Member Functions
	TexImage2DData (PixelFormat pixel_format)
	TexImage2DData (PixelFormat pixel_format, std::shared_ptr< const fml::Mapping > mapping)
bool	IsValid () const

Public Attributes
GLint	internal_format = 0
GLenum	external_format = GL_NONE
GLenum	type = GL_NONE
std::shared_ptr< const fml::Mapping >	data

Detailed Description

Definition at line 95 of file texture_gles.cc.

Constructor & Destructor Documentation

TexImage2DData() [1/2]

impeller::TexImage2DData::TexImage2DData ( PixelFormat  pixel_format )

inlineexplicit

Definition at line 101 of file texture_gles.cc.

                                                    {
    switch (pixel_format) {
      case PixelFormat::kA8UNormInt:
        internal_format = GL_ALPHA;
        external_format = GL_ALPHA;
        type = GL_UNSIGNED_BYTE;
        break;
      case PixelFormat::kR8G8B8A8UNormInt:
      case PixelFormat::kB8G8R8A8UNormInt:
      case PixelFormat::kR8G8B8A8UNormIntSRGB:
      case PixelFormat::kB8G8R8A8UNormIntSRGB:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_UNSIGNED_BYTE;
        break;
      case PixelFormat::kR32G32B32A32Float:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_FLOAT;
        break;
      case PixelFormat::kR16G16B16A16Float:
        internal_format = GL_RGBA;
        external_format = GL_RGBA;
        type = GL_HALF_FLOAT;
        break;
      case PixelFormat::kS8UInt:
        // Pure stencil textures are only available in OpenGL 4.4+, which is
        // ~0% of mobile devices. Instead, we use a depth-stencil texture and
        // only use the stencil component.
        //
        // https://registry.khronos.org/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml
        internal_format = GL_DEPTH_STENCIL;
        external_format = GL_DEPTH_STENCIL;
        type = GL_UNSIGNED_INT_24_8;
        break;
      case PixelFormat::kUnknown:
      case PixelFormat::kD24UnormS8Uint:
      case PixelFormat::kD32FloatS8UInt:
      case PixelFormat::kR8UNormInt:
      case PixelFormat::kR8G8UNormInt:
      case PixelFormat::kB10G10R10XRSRGB:
      case PixelFormat::kB10G10R10XR:
      case PixelFormat::kB10G10R10A10XR:
        return;
    }
    is_valid_ = true;
  }

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

TexImage2DData() [2/2]

impeller::TexImage2DData::TexImage2DData ( PixelFormat  pixel_format, std::shared_ptr< const fml::Mapping >  mapping  )

inline

Definition at line 149 of file texture_gles.cc.

      : TexImage2DData(pixel_format) {
    data = std::move(mapping);
  }

References data.

Member Function Documentation

IsValid()

bool impeller::TexImage2DData::IsValid ( ) const

inline

Definition at line 155 of file texture_gles.cc.

{ return is_valid_; }

Member Data Documentation

data

std::shared_ptr<const fml::Mapping> impeller::TexImage2DData::data

Definition at line 99 of file texture_gles.cc.

Referenced by TexImage2DData().

external_format

GLenum impeller::TexImage2DData::external_format = GL_NONE

Definition at line 97 of file texture_gles.cc.

Referenced by TexImage2DData().

internal_format

GLint impeller::TexImage2DData::internal_format = 0

Definition at line 96 of file texture_gles.cc.

Referenced by TexImage2DData().

type

GLenum impeller::TexImage2DData::type = GL_NONE

Definition at line 98 of file texture_gles.cc.

Referenced by TexImage2DData().

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The documentation for this struct was generated from the following file:

• impeller/renderer/backend/gles/texture_gles.cc