flutter::TextureRegistrarImpl Class Reference

#include <texture_registrar_impl.h>

Inheritance diagram for flutter::TextureRegistrarImpl:

Public Member Functions
	TextureRegistrarImpl (FlutterDesktopTextureRegistrarRef texture_registrar_ref)
virtual	~TextureRegistrarImpl ()
	TextureRegistrarImpl (TextureRegistrarImpl const &)=delete
TextureRegistrarImpl &	operator= (TextureRegistrarImpl const &)=delete
int64_t	RegisterTexture (TextureVariant *texture) override
bool	MarkTextureFrameAvailable (int64_t texture_id) override
void	UnregisterTexture (int64_t texture_id, std::function< void()> callback) override
bool	UnregisterTexture (int64_t texture_id) override
Public Member Functions inherited from flutter::TextureRegistrar
virtual	~TextureRegistrar ()=default

Detailed Description

Definition at line 14 of file texture_registrar_impl.h.

Constructor & Destructor Documentation

TextureRegistrarImpl() [1/2]

flutter::TextureRegistrarImpl::TextureRegistrarImpl ( FlutterDesktopTextureRegistrarRef  texture_registrar_ref )

explicit

Definition at line 211 of file core_implementations.cc.

    : texture_registrar_ref_(texture_registrar_ref) {}

~TextureRegistrarImpl()

flutter::TextureRegistrarImpl::~TextureRegistrarImpl ( )

virtualdefault

TextureRegistrarImpl() [2/2]

flutter::TextureRegistrarImpl::TextureRegistrarImpl ( TextureRegistrarImpl const &  )

delete

Member Function Documentation

MarkTextureFrameAvailable()

bool flutter::TextureRegistrarImpl::MarkTextureFrameAvailable ( int64_t  texture_id )

overridevirtual

Implements flutter::TextureRegistrar.

Definition at line 251 of file core_implementations.cc.

                                                                       {
  return FlutterDesktopTextureRegistrarMarkExternalTextureFrameAvailable(
      texture_registrar_ref_, texture_id);
}

References FlutterDesktopTextureRegistrarMarkExternalTextureFrameAvailable(), and texture_id.

operator=()

TextureRegistrarImpl& flutter::TextureRegistrarImpl::operator= ( TextureRegistrarImpl const &  )

delete

RegisterTexture()

int64_t flutter::TextureRegistrarImpl::RegisterTexture ( TextureVariant *  texture )

overridevirtual

Implements flutter::TextureRegistrar.

Definition at line 217 of file core_implementations.cc.

                                                                     {
  FlutterDesktopTextureInfo info = {};
  if (auto pixel_buffer_texture = std::get_if<PixelBufferTexture>(texture)) {
    info.type = kFlutterDesktopPixelBufferTexture;
    info.pixel_buffer_config.user_data = pixel_buffer_texture;
    info.pixel_buffer_config.callback =
        [](size_t width, size_t height,
           void* user_data) -> const FlutterDesktopPixelBuffer* {
      auto texture = static_cast<PixelBufferTexture*>(user_data);
      return texture->CopyPixelBuffer(width, height);
    };
  } else if (auto gpu_surface_texture =
                 std::get_if<GpuSurfaceTexture>(texture)) {
    info.type = kFlutterDesktopGpuSurfaceTexture;
    info.gpu_surface_config.struct_size =
        sizeof(FlutterDesktopGpuSurfaceTextureConfig);
    info.gpu_surface_config.type = gpu_surface_texture->surface_type();
    info.gpu_surface_config.user_data = gpu_surface_texture;
    info.gpu_surface_config.callback =
        [](size_t width, size_t height,
           void* user_data) -> const FlutterDesktopGpuSurfaceDescriptor* {
      auto texture = static_cast<GpuSurfaceTexture*>(user_data);
      return texture->ObtainDescriptor(width, height);
    };
  } else {
    std::cerr << "Attempting to register unknown texture variant." << std::endl;
    return -1;
  }
 
  int64_t texture_id = FlutterDesktopTextureRegistrarRegisterExternalTexture(
      texture_registrar_ref_, &info);
  return texture_id;
}  // namespace flutter

References FlutterDesktopPixelBufferTextureConfig::callback, FlutterDesktopGpuSurfaceTextureConfig::callback, flutter::PixelBufferTexture::CopyPixelBuffer(), FlutterDesktopTextureRegistrarRegisterExternalTexture(), FlutterDesktopTextureInfo::gpu_surface_config, kFlutterDesktopGpuSurfaceTexture, kFlutterDesktopPixelBufferTexture, flutter::GpuSurfaceTexture::ObtainDescriptor(), FlutterDesktopTextureInfo::pixel_buffer_config, FlutterDesktopGpuSurfaceTextureConfig::struct_size, texture_id, FlutterDesktopGpuSurfaceTextureConfig::type, FlutterDesktopTextureInfo::type, user_data, FlutterDesktopPixelBufferTextureConfig::user_data, and FlutterDesktopGpuSurfaceTextureConfig::user_data.

UnregisterTexture() [1/2]

bool flutter::TextureRegistrarImpl::UnregisterTexture ( int64_t  texture_id )

overridevirtual

Implements flutter::TextureRegistrar.

Definition at line 279 of file core_implementations.cc.

                                                               {
  UnregisterTexture(texture_id, nullptr);
  return true;
}

References texture_id, and UnregisterTexture().

UnregisterTexture() [2/2]

void flutter::TextureRegistrarImpl::UnregisterTexture ( int64_t  texture_id, std::function< void()>  callback  )

overridevirtual

Implements flutter::TextureRegistrar.

Definition at line 256 of file core_implementations.cc.

                                                                           {
  if (callback == nullptr) {
    FlutterDesktopTextureRegistrarUnregisterExternalTexture(
        texture_registrar_ref_, texture_id, nullptr, nullptr);
    return;
  }
 
  struct Captures {
    std::function<void()> callback;
  };
  auto captures = new Captures();
  captures->callback = std::move(callback);
  FlutterDesktopTextureRegistrarUnregisterExternalTexture(
      texture_registrar_ref_, texture_id,
      [](void* opaque) {
        auto captures = reinterpret_cast<Captures*>(opaque);
        captures->callback();
        delete captures;
      },
      captures);
}

References callback, FlutterDesktopTextureRegistrarUnregisterExternalTexture(), and texture_id.

Referenced by UnregisterTexture().

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

• shell/platform/common/client_wrapper/texture_registrar_impl.h
• shell/platform/common/client_wrapper/core_implementations.cc