flutter::EmbedderSurfaceGLImpeller Class Reference

#include <embedder_surface_gl_impeller.h>

Inheritance diagram for flutter::EmbedderSurfaceGLImpeller:

Public Member Functions
	EmbedderSurfaceGLImpeller (EmbedderSurfaceGLSkia::GLDispatchTable gl_dispatch_table, bool fbo_reset_after_present, std::shared_ptr< EmbedderExternalViewEmbedder > external_view_embedder, std::shared_ptr< fml::BasicTaskRunner > io_task_runner, impeller::Flags impeller_flags={})
	~EmbedderSurfaceGLImpeller () override
Public Member Functions inherited from flutter::EmbedderSurface
	EmbedderSurface ()
virtual	~EmbedderSurface ()
Public Member Functions inherited from flutter::GPUSurfaceGLDelegate
	~GPUSurfaceGLDelegate ()
virtual void	GLContextSetDamageRegion (const std::optional< DlIRect > &region)
virtual sk_sp< const GrGLInterface >	GetGLInterface () const
virtual bool	AllowsDrawingWhenGpuDisabled () const

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 29 of file embedder_surface_gl_impeller.h.

Constructor & Destructor Documentation

EmbedderSurfaceGLImpeller()

flutter::EmbedderSurfaceGLImpeller::EmbedderSurfaceGLImpeller	(	EmbedderSurfaceGLSkia::GLDispatchTable	gl_dispatch_table,
		bool	fbo_reset_after_present,
		std::shared_ptr< EmbedderExternalViewEmbedder >	external_view_embedder,
		std::shared_ptr< fml::BasicTaskRunner >	io_task_runner,
		impeller::Flags	impeller_flags = {}
	)

Definition at line 77 of file embedder_surface_gl_impeller.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)),
      worker_(std::make_shared<ReactorWorker>()) {
  // 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 ||
      !gl_dispatch_table_.gl_proc_resolver) {
    return;
  }
  // Certain GL backends need to made current before any GL
  // state can be accessed.
  gl_dispatch_table_.gl_make_current_callback();
 
  auto gl = std::make_unique<impeller::ProcTableGLES>(
      gl_dispatch_table_.gl_proc_resolver);
  if (!gl->IsValid()) {
    return;
  }
 
  const auto is_gles3 =
      gl->GetDescription()->GetGlVersion().IsAtLeast(impeller::Version(3));
  const auto shader_mappings = GetShaderMappings(is_gles3);
 
  impeller_context_ = impeller::ContextGLES::Create(
      impeller_flags, std::move(gl), shader_mappings,
      /*enable_gpu_tracing=*/false, std::move(io_task_runner));
 
  if (!impeller_context_) {
    FML_LOG(ERROR) << "Could not create Impeller context.";
    return;
  }
 
  auto worker_id = impeller_context_->AddReactorWorker(worker_);
  if (!worker_id.has_value()) {
    FML_LOG(ERROR) << "Could not add reactor worker.";
    return;
  }
 
  gl_dispatch_table_.gl_clear_current_callback();
  if (impeller_flags.use_sdfs) {
    FML_LOG(IMPORTANT) << "Using the Impeller rendering backend (OpenGLESSDF).";
  } else {
    FML_LOG(IMPORTANT) << "Using the Impeller rendering backend (OpenGLES).";
  }
  valid_ = true;
}

References impeller::ContextGLES::Create(), FML_LOG, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_clear_current_callback, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_fbo_callback, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_make_current_callback, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_populate_existing_damage, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_present_callback, flutter::EmbedderSurfaceGLSkia::GLDispatchTable::gl_proc_resolver, and impeller::Flags::use_sdfs.

~EmbedderSurfaceGLImpeller()

flutter::EmbedderSurfaceGLImpeller::~EmbedderSurfaceGLImpeller ( )

overridedefault

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

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