flutter::testing::TestVulkanContext Class Reference

#include <test_vulkan_context.h>

Inheritance diagram for flutter::testing::TestVulkanContext:

Public Member Functions
	TestVulkanContext ()
	~TestVulkanContext ()
std::optional< TestVulkanImage >	CreateImage (const SkISize &size) const
sk_sp< GrDirectContext >	GetGrDirectContext () const
Public Member Functions inherited from fml::RefCountedThreadSafe< TestVulkanContext >
void	Release () const
Public Member Functions inherited from fml::internal::RefCountedThreadSafeBase
void	AddRef () const
bool	HasOneRef () const
void	AssertHasOneRef () const

Friends
class	EmbedderTestContextVulkan
class	EmbedderConfigBuilder

Additional Inherited Members
Protected Member Functions inherited from fml::RefCountedThreadSafe< TestVulkanContext >
	RefCountedThreadSafe ()
	~RefCountedThreadSafe ()
Protected Member Functions inherited from fml::internal::RefCountedThreadSafeBase
	RefCountedThreadSafeBase ()
	~RefCountedThreadSafeBase ()
bool	Release () const
void	Adopt ()

Detailed Description

Definition at line 21 of file test_vulkan_context.h.

Constructor & Destructor Documentation

TestVulkanContext()

flutter::testing::TestVulkanContext::TestVulkanContext

(

)

Definition at line 27 of file test_vulkan_context.cc.

                                     {
  // ---------------------------------------------------------------------------
  // Initialize basic Vulkan state using the Swiftshader ICD.
  // ---------------------------------------------------------------------------
 
  const char* vulkan_icd = VULKAN_SO_PATH;
 
  // TODO(96949): Clean this up and pass a native library directly to
  //              VulkanProcTable.
  if (!fml::NativeLibrary::Create(VULKAN_SO_PATH)) {
    FML_LOG(ERROR) << "Couldn't find Vulkan ICD \"" << vulkan_icd
                   << "\", trying \"libvulkan.so\" instead.";
    vulkan_icd = "libvulkan.so";
  }
 
  FML_LOG(INFO) << "Using Vulkan ICD: " << vulkan_icd;
 
  vk_ = fml::MakeRefCounted<vulkan::VulkanProcTable>(vulkan_icd);
  if (!vk_ || !vk_->HasAcquiredMandatoryProcAddresses()) {
    FML_LOG(ERROR) << "Proc table has not acquired mandatory proc addresses.";
    return;
  }
 
  application_ = std::make_unique<vulkan::VulkanApplication>(
      *vk_, "Flutter Unittests", std::vector<std::string>{},
      VK_MAKE_VERSION(1, 0, 0), VK_MAKE_VERSION(1, 0, 0), true);
  if (!application_->IsValid()) {
    FML_LOG(ERROR) << "Failed to initialize basic Vulkan state.";
    return;
  }
  if (!vk_->AreInstanceProcsSetup()) {
    FML_LOG(ERROR) << "Failed to acquire full proc table.";
    return;
  }
 
  device_ = application_->AcquireFirstCompatibleLogicalDevice();
  if (!device_ || !device_->IsValid()) {
    FML_LOG(ERROR) << "Failed to create compatible logical device.";
    return;
  }
 
  // ---------------------------------------------------------------------------
  // Create a Skia context.
  // For creating SkSurfaces from VkImages and snapshotting them, etc.
  // ---------------------------------------------------------------------------
 
  uint32_t skia_features = 0;
  if (!device_->GetPhysicalDeviceFeaturesSkia(&skia_features)) {
    FML_LOG(ERROR) << "Failed to get physical device features.";
 
    return;
  }
 
  auto get_proc = vulkan::CreateSkiaGetProc(vk_);
  if (get_proc == nullptr) {
    FML_LOG(ERROR) << "Failed to create Vulkan getProc for Skia.";
    return;
  }
 
  sk_sp<skgpu::VulkanMemoryAllocator> allocator =
      flutter::FlutterSkiaVulkanMemoryAllocator::Make(
          VK_MAKE_VERSION(1, 0, 0), application_->GetInstance(),
          device_->GetPhysicalDeviceHandle(), device_->GetHandle(), vk_, true);
 
  GrVkExtensions extensions;
 
  GrVkBackendContext backend_context = {};
  backend_context.fInstance = application_->GetInstance();
  backend_context.fPhysicalDevice = device_->GetPhysicalDeviceHandle();
  backend_context.fDevice = device_->GetHandle();
  backend_context.fQueue = device_->GetQueueHandle();
  backend_context.fGraphicsQueueIndex = device_->GetGraphicsQueueIndex();
  backend_context.fMinAPIVersion = VK_MAKE_VERSION(1, 0, 0);
  backend_context.fMaxAPIVersion = VK_MAKE_VERSION(1, 0, 0);
  backend_context.fFeatures = skia_features;
  backend_context.fVkExtensions = &extensions;
  backend_context.fGetProc = get_proc;
  backend_context.fOwnsInstanceAndDevice = false;
  backend_context.fMemoryAllocator = allocator;
 
  GrContextOptions options =
      MakeDefaultContextOptions(ContextType::kRender, GrBackendApi::kVulkan);
  options.fReduceOpsTaskSplitting = GrContextOptions::Enable::kNo;
  context_ = GrDirectContexts::MakeVulkan(backend_context, options);
}

~TestVulkanContext()

flutter::testing::TestVulkanContext::~TestVulkanContext

(

)

Definition at line 113 of file test_vulkan_context.cc.

                                      {
  if (context_) {
    context_->releaseResourcesAndAbandonContext();
  }
}

Member Function Documentation

CreateImage()

std::optional< TestVulkanImage > flutter::testing::TestVulkanContext::CreateImage

(

const SkISize &

size

)

const

Definition at line 119 of file test_vulkan_context.cc.

                               {
  TestVulkanImage result;
 
  VkImageCreateInfo info = {
      .sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,
      .pNext = nullptr,
      .flags = 0,
      .imageType = VK_IMAGE_TYPE_2D,
      .format = VK_FORMAT_R8G8B8A8_UNORM,
      .extent = VkExtent3D{static_cast<uint32_t>(size.width()),
                           static_cast<uint32_t>(size.height()), 1},
      .mipLevels = 1,
      .arrayLayers = 1,
      .samples = VK_SAMPLE_COUNT_1_BIT,
      .tiling = VK_IMAGE_TILING_OPTIMAL,
      .usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
               VK_IMAGE_USAGE_TRANSFER_DST_BIT |
               VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT,
      .sharingMode = VK_SHARING_MODE_EXCLUSIVE,
      .queueFamilyIndexCount = 0,
      .pQueueFamilyIndices = nullptr,
      .initialLayout = VK_IMAGE_LAYOUT_UNDEFINED,
  };
 
  VkImage image;
  if (VK_CALL_LOG_ERROR(VK_CALL_LOG_ERROR(
          vk_->CreateImage(device_->GetHandle(), &info, nullptr, &image)))) {
    return std::nullopt;
  }
 
  result.image_ = vulkan::VulkanHandle<VkImage>(
      image, [&vk = vk_, &device = device_](VkImage image) {
        vk->DestroyImage(device->GetHandle(), image, nullptr);
      });
 
  VkMemoryRequirements mem_req;
  vk_->GetImageMemoryRequirements(device_->GetHandle(), image, &mem_req);
  VkMemoryAllocateInfo alloc_info{};
  alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
  alloc_info.allocationSize = mem_req.size;
  alloc_info.memoryTypeIndex = static_cast<uint32_t>(__builtin_ctz(
      mem_req.memoryTypeBits & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT));
 
  VkDeviceMemory memory;
  if (VK_CALL_LOG_ERROR(vk_->AllocateMemory(device_->GetHandle(), &alloc_info,
                                            nullptr, &memory)) != VK_SUCCESS) {
    return std::nullopt;
  }
 
  result.memory_ = vulkan::VulkanHandle<VkDeviceMemory>{
      memory, [&vk = vk_, &device = device_](VkDeviceMemory memory) {
        vk->FreeMemory(device->GetHandle(), memory, nullptr);
      }};
 
  if (VK_CALL_LOG_ERROR(VK_CALL_LOG_ERROR(vk_->BindImageMemory(
          device_->GetHandle(), result.image_, result.memory_, 0)))) {
    return std::nullopt;
  }
 
  result.context_ =
      fml::RefPtr<TestVulkanContext>(const_cast<TestVulkanContext*>(this));
 
  return result;
}

GetGrDirectContext()

sk_sp< GrDirectContext > flutter::testing::TestVulkanContext::GetGrDirectContext

(

)

const

Definition at line 185 of file test_vulkan_context.cc.

                                                                   {
  return context_;
}

Friends And Related Symbol Documentation

EmbedderConfigBuilder

friend class EmbedderConfigBuilder

friend

Definition at line 38 of file test_vulkan_context.h.

EmbedderTestContextVulkan

friend class EmbedderTestContextVulkan

friend

Definition at line 37 of file test_vulkan_context.h.

---

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

• testing/test_vulkan_context.h
• testing/test_vulkan_context.cc