flutter::EmbedderSurfaceVulkanImpeller Class Reference

#include <embedder_surface_vulkan_impeller.h>

Inheritance diagram for flutter::EmbedderSurfaceVulkanImpeller:

Classes
struct	VulkanDispatchTable

Public Member Functions
	EmbedderSurfaceVulkanImpeller (uint32_t version, VkInstance instance, size_t instance_extension_count, const char **instance_extensions, size_t device_extension_count, const char **device_extensions, VkPhysicalDevice physical_device, VkDevice device, uint32_t queue_family_index, VkQueue queue, const VulkanDispatchTable &vulkan_dispatch_table, std::shared_ptr< EmbedderExternalViewEmbedder > external_view_embedder)
	~EmbedderSurfaceVulkanImpeller () override
const vulkan::VulkanProcTable &	vk () override
	Obtain a reference to the Vulkan implementation's proc table.
FlutterVulkanImage	AcquireImage (const DlISize &size) override
	Called by the engine to fetch a VkImage for writing the next frame.
bool	PresentImage (VkImage image, VkFormat format) override
	Called by the engine once a frame has been rendered to the image and it's ready to be bound for further reading/writing.
std::shared_ptr< impeller::Context >	CreateImpellerContext () const override
Public Member Functions inherited from flutter::EmbedderSurface
	EmbedderSurface ()
virtual	~EmbedderSurface ()
Public Member Functions inherited from flutter::GPUSurfaceVulkanDelegate
virtual	~GPUSurfaceVulkanDelegate ()

Detailed Description

Definition at line 19 of file embedder_surface_vulkan_impeller.h.

Constructor & Destructor Documentation

EmbedderSurfaceVulkanImpeller()

flutter::EmbedderSurfaceVulkanImpeller::EmbedderSurfaceVulkanImpeller	(	uint32_t	version,
		VkInstance	instance,
		size_t	instance_extension_count,
		const char **	instance_extensions,
		size_t	device_extension_count,
		const char **	device_extensions,
		VkPhysicalDevice	physical_device,
		VkDevice	device,
		uint32_t	queue_family_index,
		VkQueue	queue,
		const VulkanDispatchTable &	vulkan_dispatch_table,
		std::shared_ptr< EmbedderExternalViewEmbedder >	external_view_embedder
	)

Definition at line 20 of file embedder_surface_vulkan_impeller.cc.

    : vk_(fml::MakeRefCounted<vulkan::VulkanProcTable>(
          vulkan_dispatch_table.get_instance_proc_address)),
      vulkan_dispatch_table_(vulkan_dispatch_table),
      external_view_embedder_(std::move(external_view_embedder)) {
  // Make sure all required members of the dispatch table are checked.
  if (!vulkan_dispatch_table_.get_instance_proc_address ||
      !vulkan_dispatch_table_.get_next_image ||
      !vulkan_dispatch_table_.present_image) {
    return;
  }
 
  std::vector<std::shared_ptr<fml::Mapping>> shader_mappings = {
      std::make_shared<fml::NonOwnedMapping>(impeller_entity_shaders_vk_data,
                                             impeller_entity_shaders_vk_length),
      std::make_shared<fml::NonOwnedMapping>(impeller_modern_shaders_vk_data,
                                             impeller_modern_shaders_vk_length),
      std::make_shared<fml::NonOwnedMapping>(
          impeller_framebuffer_blend_shaders_vk_data,
          impeller_framebuffer_blend_shaders_vk_length),
  };
  impeller::ContextVK::Settings settings;
  settings.shader_libraries_data = shader_mappings;
  settings.proc_address_callback =
      vulkan_dispatch_table.get_instance_proc_address;
 
  impeller::ContextVK::EmbedderData data;
  data.instance = instance;
  data.physical_device = physical_device;
  data.device = device;
  data.queue = queue;
  data.queue_family_index = queue_family_index;
  data.instance_extensions.reserve(instance_extension_count);
  for (auto i = 0u; i < instance_extension_count; i++) {
    data.instance_extensions.push_back(std::string{instance_extensions[i]});
  }
  data.device_extensions.reserve(device_extension_count);
  for (auto i = 0u; i < device_extension_count; i++) {
    data.device_extensions.push_back(std::string{device_extensions[i]});
  }
  settings.embedder_data = data;
 
  context_ = impeller::ContextVK::Create(std::move(settings));
  if (!context_) {
    FML_LOG(ERROR) << "Failed to initialize Vulkan Context.";
    return;
  }
 
  FML_LOG(IMPORTANT) << "Using the Impeller rendering backend (Vulkan).";
 
  valid_ = true;
}

References impeller::ContextVK::Create(), flutter::data, device, impeller::ContextVK::Settings::embedder_data, FML_LOG, flutter::EmbedderSurfaceVulkanImpeller::VulkanDispatchTable::get_instance_proc_address, flutter::EmbedderSurfaceVulkanImpeller::VulkanDispatchTable::get_next_image, i, instance, impeller::ContextVK::EmbedderData::instance, physical_device, flutter::EmbedderSurfaceVulkanImpeller::VulkanDispatchTable::present_image, impeller::ContextVK::Settings::proc_address_callback, queue, queue_family_index, and impeller::ContextVK::Settings::shader_libraries_data.

~EmbedderSurfaceVulkanImpeller()

flutter::EmbedderSurfaceVulkanImpeller::~EmbedderSurfaceVulkanImpeller ( )

override

Definition at line 85 of file embedder_surface_vulkan_impeller.cc.

{}

Member Function Documentation

AcquireImage()

FlutterVulkanImage flutter::EmbedderSurfaceVulkanImpeller::AcquireImage ( const DlISize &  size )

overridevirtual

Called by the engine to fetch a VkImage for writing the next frame.

Implements flutter::GPUSurfaceVulkanDelegate.

Definition at line 98 of file embedder_surface_vulkan_impeller.cc.

                         {
  return vulkan_dispatch_table_.get_next_image(size);
}

References flutter::EmbedderSurfaceVulkanImpeller::VulkanDispatchTable::get_next_image, and flutter::size.

CreateImpellerContext()

std::shared_ptr< impeller::Context > flutter::EmbedderSurfaceVulkanImpeller::CreateImpellerContext ( ) const

overridevirtual

Reimplemented from flutter::EmbedderSurface.

Definition at line 88 of file embedder_surface_vulkan_impeller.cc.

                                                           {
  return context_;
}

PresentImage()

bool flutter::EmbedderSurfaceVulkanImpeller::PresentImage ( VkImage  image, VkFormat  format  )

overridevirtual

Called by the engine once a frame has been rendered to the image and it's ready to be bound for further reading/writing.

Implements flutter::GPUSurfaceVulkanDelegate.

Definition at line 104 of file embedder_surface_vulkan_impeller.cc.

                                                                  {
  return vulkan_dispatch_table_.present_image(image, format);
}

References format, image, and flutter::EmbedderSurfaceVulkanImpeller::VulkanDispatchTable::present_image.

vk()

const vulkan::VulkanProcTable & flutter::EmbedderSurfaceVulkanImpeller::vk ( )

overridevirtual

Obtain a reference to the Vulkan implementation's proc table.

Implements flutter::GPUSurfaceVulkanDelegate.

Definition at line 93 of file embedder_surface_vulkan_impeller.cc.

                                                               {
  return *vk_;
}

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

• shell/platform/embedder/embedder_surface_vulkan_impeller.h
• shell/platform/embedder/embedder_surface_vulkan_impeller.cc