| Flutter Impeller |

Public Member Functions | List of all members
impeller::KHRSwapchainImageVK Class Referencefinal

`#include <khr_swapchain_image_vk.h>`

Inheritance diagram for impeller::KHRSwapchainImageVK:

## Public Member Functions
| KHRSwapchainImageVK (TextureDescriptor desc, const vk::Device &device, vk::Image image)
| ~KHRSwapchainImageVK () override
bool | IsValid () const
vk::Image | GetImage () const override
| Get the image handle for this texture source. More...
vk::ImageView | GetImageView () const override
| Retrieve the image view used for sampling/blitting/compute with this texture source. More...
vk::ImageView | GetRenderTargetView () const override
| Retrieve the image view used for render target attachments with this texture source. More...
bool | IsSwapchainImage () const override
| Determines if swapchain image. That is, an image used as the root render target. More...
Public Member Functions inherited from impeller::TextureSourceVK
virtual | ~TextureSourceVK ()
const TextureDescriptor & | GetTextureDescriptor () const
| Gets the texture descriptor for this image source. More...
fml::Status | SetLayout (const BarrierVK &barrier) const
| Encodes the layout transition `barrier` to `barrier.cmd_buffer` for the image. More...
vk::ImageLayout | SetLayoutWithoutEncoding (vk::ImageLayout layout) const
| Store the layout of the image. More...
vk::ImageLayout | GetLayout () const
| Get the last layout assigned to the TextureSourceVK. More...
virtual std::shared_ptr< YUVConversionVK > | GetYUVConversion () const
| When sampling from textures whose formats are not known to Vulkan, a custom conversion is necessary to setup custom samplers. This accessor provides this conversion if one is present. Most texture source have none. More...
void | SetCachedFramebuffer (const SharedHandleVK< vk::Framebuffer > &framebuffer)
void | SetCachedRenderPass (const SharedHandleVK< vk::RenderPass > &render_pass)
SharedHandleVK< vk::Framebuffer > | GetCachedFramebuffer () const
SharedHandleVK< vk::RenderPass > | GetCachedRenderPass () const

## Additional Inherited Members
Protected Member Functions inherited from impeller::TextureSourceVK
| TextureSourceVK (TextureDescriptor desc)
Protected Attributes inherited from impeller::TextureSourceVK
const TextureDescriptor | desc_

## Detailed Description

Definition at line 15 of file khr_swapchain_image_vk.h.

## Constructor & Destructor Documentation

## ◆ KHRSwapchainImageVK()

impeller::KHRSwapchainImageVK::KHRSwapchainImageVK | ( | TextureDescriptor | desc,
|  | const vk::Device & | device,
|  | vk::Image | image
| ) |  |

Definition at line 9 of file khr_swapchain_image_vk.cc.

12 : TextureSourceVK(desc), image_(image) {
13 vk::ImageViewCreateInfo view_info;
14 view_info.image = image_;
15 view_info.viewType = vk::ImageViewType::e2D;
16 view_info.format = ToVKImageFormat(desc.format);
17 view_info.subresourceRange.aspectMask = vk::ImageAspectFlagBits::eColor;
18 view_info.subresourceRange.baseMipLevel = 0u;
19 view_info.subresourceRange.baseArrayLayer = 0u;
20 view_info.subresourceRange.levelCount = desc.mip_count;
21 view_info.subresourceRange.layerCount = ToArrayLayerCount(desc.type);
22
23 auto [view_result, view] = device.createImageViewUnique(view_info);
24 if (view_result != vk::Result::eSuccess) {
25 return;
26 }
27
28 image_view_ = std::move(view);
29 is_valid_ = true;
30 }

References impeller::TextureDescriptor::format, impeller::TextureDescriptor::mip_count, impeller::ToArrayLayerCount(), impeller::ToVKImageFormat(), and impeller::TextureDescriptor::type.

## ◆ ~KHRSwapchainImageVK()

impeller::KHRSwapchainImageVK::~KHRSwapchainImageVK | ( |  | ) |
| override default

## Member Function Documentation

## ◆ GetImage()

vk::Image impeller::KHRSwapchainImageVK::GetImage | ( |  | ) | const
| override virtual

Get the image handle for this texture source.

Returns
  The image.

Implements impeller::TextureSourceVK.

Definition at line 39 of file khr_swapchain_image_vk.cc.

39 {
40 return image_;
41 }

## ◆ GetImageView()

vk::ImageView impeller::KHRSwapchainImageVK::GetImageView | ( |  | ) | const
| override virtual

Retrieve the image view used for sampling/blitting/compute with this texture source.

Returns
  The image view.

Implements impeller::TextureSourceVK.

Definition at line 44 of file khr_swapchain_image_vk.cc.

44 {
45 return image_view_.get();
46 }

## ◆ GetRenderTargetView()

vk::ImageView impeller::KHRSwapchainImageVK::GetRenderTargetView | ( |  | ) | const
| override virtual

Retrieve the image view used for render target attachments with this texture source.

ImageViews used as render target attachments cannot have any mip levels. In cases where we want to generate mipmaps with the result of this texture, we need to create multiple image views.

Returns
  The render target view.

Implements impeller::TextureSourceVK.

Definition at line 49 of file khr_swapchain_image_vk.cc.

49 {
50 return image_view_.get();
51 }

## ◆ IsSwapchainImage()

bool impeller::KHRSwapchainImageVK::IsSwapchainImage | ( |  | ) | const
| override virtual

Determines if swapchain image. That is, an image used as the root render target.

Returns
  Whether or not this is a swapchain image.

Implements impeller::TextureSourceVK.

Definition at line 54 of file khr_swapchain_image_vk.cc.

54 {
55 return true;
56 }

## ◆ IsValid()

bool impeller::KHRSwapchainImageVK::IsValid | ( |  | ) | const

Definition at line 34 of file khr_swapchain_image_vk.cc.

34 {
35 return is_valid_;
36 }

The documentation for this class was generated from the following files:

- impeller/renderer/backend/vulkan/swapchain/khr/khr_swapchain_image_vk.h
- impeller/renderer/backend/vulkan/swapchain/khr/khr_swapchain_image_vk.cc

impeller::TextureSourceVK::TextureSourceVK
TextureSourceVK(TextureDescriptor desc)
Definition: texture_source_vk.cc:9
impeller::ToArrayLayerCount
constexpr uint32_t ToArrayLayerCount(TextureType type)
Definition: formats_vk.h:516
impeller::ToVKImageFormat
constexpr vk::Format ToVKImageFormat(PixelFormat format)
Definition: formats_vk.h:133