flutter::EmbedderSurfaceGL Class Reference

#include <embedder_surface_gl.h>

Inheritance diagram for flutter::EmbedderSurfaceGL:

Classes
struct	GLDispatchTable

Public Member Functions
	EmbedderSurfaceGL (GLDispatchTable gl_dispatch_table, bool fbo_reset_after_present, std::shared_ptr< EmbedderExternalViewEmbedder > external_view_embedder)
	~EmbedderSurfaceGL () override
Public Member Functions inherited from flutter::EmbedderSurface
	EmbedderSurface ()
virtual	~EmbedderSurface ()
virtual std::shared_ptr< impeller::Context >	CreateImpellerContext () const
Public Member Functions inherited from flutter::GPUSurfaceGLDelegate
	~GPUSurfaceGLDelegate ()
virtual void	GLContextSetDamageRegion (const std::optional< SkIRect > &region)
virtual sk_sp< const GrGLInterface >	GetGLInterface () const
virtual bool	AllowsDrawingWhenGpuDisabled () const

Private Member Functions
bool	IsValid () const override
std::unique_ptr< Surface >	CreateGPUSurface () override
sk_sp< GrDirectContext >	CreateResourceContext () const override
std::unique_ptr< GLContextResult >	GLContextMakeCurrent () override
bool	GLContextClearCurrent () override
bool	GLContextPresent (const GLPresentInfo &present_info) override
GLFBOInfo	GLContextFBO (GLFrameInfo frame_info) const override
bool	GLContextFBOResetAfterPresent () const override
SkMatrix	GLContextSurfaceTransformation () const override
GLProcResolver	GetGLProcResolver () const override
SurfaceFrame::FramebufferInfo	GLContextFramebufferInfo () const override

Additional Inherited Members
Public Types inherited from flutter::GPUSurfaceGLDelegate
using	GLProcResolver = std::function< void *(const char *)>
Static Public Member Functions inherited from flutter::GPUSurfaceGLDelegate
static sk_sp< const GrGLInterface >	GetDefaultPlatformGLInterface ()

Detailed Description

Definition at line 15 of file embedder_surface_gl.h.

Constructor & Destructor Documentation

EmbedderSurfaceGL()

flutter::EmbedderSurfaceGL::EmbedderSurfaceGL	(	GLDispatchTable	gl_dispatch_table,
		bool	fbo_reset_after_present,
		std::shared_ptr< EmbedderExternalViewEmbedder >	external_view_embedder
	)

Definition at line 13 of file embedder_surface_gl.cc.

    : gl_dispatch_table_(std::move(gl_dispatch_table)),
      fbo_reset_after_present_(fbo_reset_after_present),
      external_view_embedder_(std::move(external_view_embedder)) {
  // Make sure all required members of the dispatch table are checked.
  if (!gl_dispatch_table_.gl_make_current_callback ||
      !gl_dispatch_table_.gl_clear_current_callback ||
      !gl_dispatch_table_.gl_present_callback ||
      !gl_dispatch_table_.gl_fbo_callback ||
      !gl_dispatch_table_.gl_populate_existing_damage) {
    return;
  }
 
  valid_ = true;
}

~EmbedderSurfaceGL()

flutter::EmbedderSurfaceGL::~EmbedderSurfaceGL ( )

overridedefault

Member Function Documentation

CreateGPUSurface()

std::unique_ptr< Surface > flutter::EmbedderSurfaceGL::CreateGPUSurface ( )

overrideprivatevirtual

Implements flutter::EmbedderSurface.

Definition at line 97 of file embedder_surface_gl.cc.

                                                           {
  const bool render_to_surface = !external_view_embedder_;
  return std::make_unique<GPUSurfaceGLSkia>(
      this,              // GPU surface GL delegate
      render_to_surface  // render to surface
  );
}

CreateResourceContext()

sk_sp< GrDirectContext > flutter::EmbedderSurfaceGL::CreateResourceContext ( ) const

overrideprivatevirtual

Reimplemented from flutter::EmbedderSurface.

Definition at line 106 of file embedder_surface_gl.cc.

                                                                      {
  auto callback = gl_dispatch_table_.gl_make_resource_current_callback;
  if (callback && callback()) {
    if (auto context = ShellIOManager::CreateCompatibleResourceLoadingContext(
            GrBackendApi::kOpenGL, GetGLInterface())) {
      return context;
    } else {
      FML_LOG(ERROR)
          << "Internal error: Resource context available but could not create "
             "a compatible Skia context.";
      return nullptr;
    }
  }
 
  // The callback was not available or failed.
  FML_LOG(ERROR)
      << "Could not create a resource context for async texture uploads. "
         "Expect degraded performance. Set a valid make_resource_current "
         "callback on FlutterOpenGLRendererConfig.";
  return nullptr;
}

GetGLProcResolver()

EmbedderSurfaceGL::GLProcResolver flutter::EmbedderSurfaceGL::GetGLProcResolver ( ) const

overrideprivatevirtual

Reimplemented from flutter::GPUSurfaceGLDelegate.

Definition at line 81 of file embedder_surface_gl.cc.

                                                                           {
  return gl_dispatch_table_.gl_proc_resolver;
}

GLContextClearCurrent()

bool flutter::EmbedderSurfaceGL::GLContextClearCurrent ( )

overrideprivatevirtual

Implements flutter::GPUSurfaceGLDelegate.

Definition at line 46 of file embedder_surface_gl.cc.

                                              {
  return gl_dispatch_table_.gl_clear_current_callback();
}

GLContextFBO()

GLFBOInfo flutter::EmbedderSurfaceGL::GLContextFBO ( GLFrameInfo  frame_info ) const

overrideprivatevirtual

Implements flutter::GPUSurfaceGLDelegate.

Definition at line 57 of file embedder_surface_gl.cc.

                                                                      {
  // Get the FBO ID using the gl_fbo_callback and then get exiting damage by
  // passing that ID to the gl_populate_existing_damage.
  return gl_dispatch_table_.gl_populate_existing_damage(
      gl_dispatch_table_.gl_fbo_callback(frame_info));
}

GLContextFBOResetAfterPresent()

bool flutter::EmbedderSurfaceGL::GLContextFBOResetAfterPresent ( ) const

overrideprivatevirtual

Reimplemented from flutter::GPUSurfaceGLDelegate.

Definition at line 65 of file embedder_surface_gl.cc.

                                                            {
  return fbo_reset_after_present_;
}

GLContextFramebufferInfo()

SurfaceFrame::FramebufferInfo flutter::EmbedderSurfaceGL::GLContextFramebufferInfo ( ) const

overrideprivatevirtual

Reimplemented from flutter::GPUSurfaceGLDelegate.

Definition at line 86 of file embedder_surface_gl.cc.

          {
  // Enable partial repaint by default on the embedders.
  auto info = SurfaceFrame::FramebufferInfo{};
  info.supports_readback = true;
  info.supports_partial_repaint =
      gl_dispatch_table_.gl_populate_existing_damage != nullptr;
  return info;
}

GLContextMakeCurrent()

std::unique_ptr< GLContextResult > flutter::EmbedderSurfaceGL::GLContextMakeCurrent ( )

overrideprivatevirtual

Implements flutter::GPUSurfaceGLDelegate.

Definition at line 40 of file embedder_surface_gl.cc.

                                                                       {
  return std::make_unique<GLContextDefaultResult>(
      gl_dispatch_table_.gl_make_current_callback());
}

GLContextPresent()

bool flutter::EmbedderSurfaceGL::GLContextPresent ( const GLPresentInfo &  present_info )

overrideprivatevirtual

Implements flutter::GPUSurfaceGLDelegate.

Definition at line 51 of file embedder_surface_gl.cc.

                                                                          {
  // Pass the present information to the embedder present callback.
  return gl_dispatch_table_.gl_present_callback(present_info);
}

GLContextSurfaceTransformation()

SkMatrix flutter::EmbedderSurfaceGL::GLContextSurfaceTransformation ( ) const

overrideprivatevirtual

Reimplemented from flutter::GPUSurfaceGLDelegate.

Definition at line 70 of file embedder_surface_gl.cc.

                                                                 {
  auto callback = gl_dispatch_table_.gl_surface_transformation_callback;
  if (!callback) {
    SkMatrix matrix;
    matrix.setIdentity();
    return matrix;
  }
  return callback();
}

IsValid()

bool flutter::EmbedderSurfaceGL::IsValid ( ) const

overrideprivatevirtual

Implements flutter::EmbedderSurface.

Definition at line 35 of file embedder_surface_gl.cc.

                                      {
  return valid_;
}

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

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