flutter::testing::EmbedderTestBackingStoreProducerVulkan Class Reference

#include <embedder_test_backingstore_producer_vulkan.h>

Inheritance diagram for flutter::testing::EmbedderTestBackingStoreProducerVulkan:

Public Member Functions
	EmbedderTestBackingStoreProducerVulkan (sk_sp< GrDirectContext > context, RenderTargetType type)
virtual	~EmbedderTestBackingStoreProducerVulkan ()
bool	Create (const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out) override
sk_sp< SkSurface >	GetSurface (const FlutterBackingStore *backing_store) const override
sk_sp< SkImage >	MakeImageSnapshot (const FlutterBackingStore *backing_store) const override
Public Member Functions inherited from flutter::testing::EmbedderTestBackingStoreProducer
	EmbedderTestBackingStoreProducer (sk_sp< GrDirectContext > context, RenderTargetType type)
virtual	~EmbedderTestBackingStoreProducer ()

Additional Inherited Members
Public Types inherited from flutter::testing::EmbedderTestBackingStoreProducer
enum class	RenderTargetType {   kSoftwareBuffer ,   kSoftwareBuffer2 ,   kOpenGLFramebuffer ,   kOpenGLTexture ,   kOpenGLSurface ,   kMetalTexture ,   kVulkanImage }
Protected Member Functions inherited from flutter::testing::EmbedderTestBackingStoreProducer
	FML_DISALLOW_COPY_AND_ASSIGN (EmbedderTestBackingStoreProducer)
Protected Attributes inherited from flutter::testing::EmbedderTestBackingStoreProducer
sk_sp< GrDirectContext >	context_
RenderTargetType	type_

Detailed Description

Definition at line 14 of file embedder_test_backingstore_producer_vulkan.h.

Constructor & Destructor Documentation

EmbedderTestBackingStoreProducerVulkan()

flutter::testing::EmbedderTestBackingStoreProducerVulkan::EmbedderTestBackingStoreProducerVulkan	(	sk_sp< GrDirectContext >	context,
		RenderTargetType	type
	)

Definition at line 23 of file embedder_test_backingstore_producer_vulkan.cc.

    : EmbedderTestBackingStoreProducer(std::move(context), type),
      test_vulkan_context_(nullptr) {}

~EmbedderTestBackingStoreProducerVulkan()

flutter::testing::EmbedderTestBackingStoreProducerVulkan::~EmbedderTestBackingStoreProducerVulkan ( )

virtualdefault

Member Function Documentation

Create()

bool flutter::testing::EmbedderTestBackingStoreProducerVulkan::Create ( const FlutterBackingStoreConfig *  config, FlutterBackingStore *  backing_store_out  )

overridevirtual

Implements flutter::testing::EmbedderTestBackingStoreProducer.

Definition at line 32 of file embedder_test_backingstore_producer_vulkan.cc.

                                            {
  if (!test_vulkan_context_) {
    test_vulkan_context_ = fml::MakeRefCounted<TestVulkanContext>();
  }
 
  auto surface_size = DlISize(config->size.width, config->size.height);
  auto optional_image = test_vulkan_context_->CreateImage(surface_size);
  if (!optional_image.has_value()) {
    FML_LOG(ERROR) << "Could not create Vulkan image.";
    return false;
  }
  TestVulkanImage* test_image = new TestVulkanImage(std::move(*optional_image));
 
  GrVkImageInfo image_info = {
      .fImage = test_image->GetImage(),
      .fImageTiling = VK_IMAGE_TILING_OPTIMAL,
      .fImageLayout = VK_IMAGE_LAYOUT_UNDEFINED,
      .fFormat = VK_FORMAT_R8G8B8A8_UNORM,
      .fImageUsageFlags = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
                          VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
                          VK_IMAGE_USAGE_TRANSFER_DST_BIT |
                          VK_IMAGE_USAGE_SAMPLED_BIT,
      .fSampleCount = 1,
      .fLevelCount = 1,
  };
  auto backend_texture = GrBackendTextures::MakeVk(
      surface_size.width, surface_size.height, image_info);
 
  SkSurfaceProps surface_properties(0, kUnknown_SkPixelGeometry);
 
  SkSurfaces::TextureReleaseProc release_vktexture = [](void* user_data) {
    delete reinterpret_cast<TestVulkanImage*>(user_data);
  };
 
  sk_sp<SkSurface> surface = SkSurfaces::WrapBackendTexture(
      context_.get(),            // context
      backend_texture,           // back-end texture
      kTopLeft_GrSurfaceOrigin,  // surface origin
      1,                         // sample count
      kRGBA_8888_SkColorType,    // color type
      SkColorSpace::MakeSRGB(),  // color space
      &surface_properties,       // surface properties
      release_vktexture,         // texture release proc
      test_image                 // release context
  );
 
  if (!surface) {
    FML_LOG(ERROR) << "Could not create Skia surface from Vulkan image.";
    return false;
  }
  backing_store_out->type = kFlutterBackingStoreTypeVulkan;
 
  FlutterVulkanImage* image = new FlutterVulkanImage();
  image->image = reinterpret_cast<uint64_t>(image_info.fImage);
  image->format = VK_FORMAT_R8G8B8A8_UNORM;
  backing_store_out->vulkan.image = image;
 
  // Collect all allocated resources in the destruction_callback.
  {
    auto user_data = new UserData{.surface = surface, .image = image};
    backing_store_out->user_data = user_data;
    backing_store_out->vulkan.user_data = user_data;
    backing_store_out->vulkan.destruction_callback = [](void* user_data) {
      UserData* d = reinterpret_cast<UserData*>(user_data);
      delete d->image;
      delete d;
    };
  }
 
  return true;
}

References flutter::testing::EmbedderTestBackingStoreProducer::context_, d, FlutterVulkanBackingStore::destruction_callback, FML_LOG, FlutterVulkanImage::format, flutter::testing::TestVulkanImage::GetImage(), FlutterSize::height, FlutterVulkanImage::image, FlutterVulkanBackingStore::image, image, kFlutterBackingStoreTypeVulkan, FlutterBackingStoreConfig::size, surface, FlutterBackingStore::type, user_data, FlutterVulkanBackingStore::user_data, FlutterBackingStore::user_data, FlutterBackingStore::vulkan, and FlutterSize::width.

GetSurface()

sk_sp< SkSurface > flutter::testing::EmbedderTestBackingStoreProducerVulkan::GetSurface ( const FlutterBackingStore *  backing_store ) const

overridevirtual

Implements flutter::testing::EmbedderTestBackingStoreProducer.

Definition at line 106 of file embedder_test_backingstore_producer_vulkan.cc.

                                                    {
  UserData* user_data = reinterpret_cast<UserData*>(backing_store->user_data);
  return user_data->surface;
}

References user_data, and FlutterBackingStore::user_data.

MakeImageSnapshot()

sk_sp< SkImage > flutter::testing::EmbedderTestBackingStoreProducerVulkan::MakeImageSnapshot ( const FlutterBackingStore *  backing_store ) const

overridevirtual

Implements flutter::testing::EmbedderTestBackingStoreProducer.

Definition at line 112 of file embedder_test_backingstore_producer_vulkan.cc.

                                                    {
  UserData* user_data = reinterpret_cast<UserData*>(backing_store->user_data);
  return user_data->surface->makeImageSnapshot();
}

References user_data, and FlutterBackingStore::user_data.

---

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

• shell/platform/embedder/tests/embedder_test_backingstore_producer_vulkan.h
• shell/platform/embedder/tests/embedder_test_backingstore_producer_vulkan.cc