Mus: surfaces::CompositorFrameSink => DisplayCompositorFrameSink

services/ui/surfaces/compositor_frame_sink.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "services/ui/surfaces/compositor_frame_sink.h"
-
-#include "cc/output/copy_output_request.h"
-#include "cc/output/output_surface.h"
-#include "cc/output/renderer_settings.h"
-#include "cc/output/texture_mailbox_deleter.h"
-#include "cc/scheduler/begin_frame_source.h"
-#include "cc/scheduler/delay_based_time_source.h"
-#include "cc/surfaces/display.h"
-#include "cc/surfaces/display_scheduler.h"
-#include "cc/surfaces/frame_sink_id.h"
-#include "gpu/ipc/client/gpu_channel_host.h"
-#include "services/ui/surfaces/direct_output_surface.h"
-#include "services/ui/surfaces/surfaces_context_provider.h"
-
-#if defined(USE_OZONE)
-#include "gpu/command_buffer/client/gles2_interface.h"
-#include "services/ui/surfaces/direct_output_surface_ozone.h"
-#endif
-
-namespace ui {
-namespace surfaces {
-
-CompositorFrameSink::CompositorFrameSink(
-    const cc::FrameSinkId& frame_sink_id,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-    gfx::AcceleratedWidget widget,
-    scoped_refptr<gpu::GpuChannelHost> gpu_channel,
-    const scoped_refptr<DisplayCompositor>& display_compositor)
-    : frame_sink_id_(frame_sink_id),
-      task_runner_(task_runner),
-      display_compositor_(display_compositor),
-      factory_(frame_sink_id_, display_compositor->manager(), this) {
-  display_compositor_->manager()->RegisterFrameSinkId(frame_sink_id_);
-  display_compositor_->manager()->RegisterSurfaceFactoryClient(frame_sink_id_,
-                                                               this);
-
-  gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager =
-      gpu_channel->gpu_memory_buffer_manager();
-  scoped_refptr<SurfacesContextProvider> surfaces_context_provider(
-      new SurfacesContextProvider(widget, std::move(gpu_channel)));
-  // TODO(rjkroege): If there is something better to do than CHECK, add it.
-  CHECK(surfaces_context_provider->BindToCurrentThread());
-
-  std::unique_ptr<cc::SyntheticBeginFrameSource> synthetic_begin_frame_source(
-      new cc::DelayBasedBeginFrameSource(
-          base::MakeUnique<cc::DelayBasedTimeSource>(task_runner_.get())));
-
-  std::unique_ptr<cc::OutputSurface> display_output_surface;
-  if (surfaces_context_provider->ContextCapabilities().surfaceless) {
-#if defined(USE_OZONE)
-    display_output_surface = base::MakeUnique<DirectOutputSurfaceOzone>(
-        surfaces_context_provider, widget, synthetic_begin_frame_source.get(),
-        gpu_memory_buffer_manager, GL_TEXTURE_2D, GL_RGB);
-#else
-    NOTREACHED();
-#endif
-  } else {
-    display_output_surface = base::MakeUnique<DirectOutputSurface>(
-        surfaces_context_provider, synthetic_begin_frame_source.get());
-  }
-
-  int max_frames_pending =
-      display_output_surface->capabilities().max_frames_pending;
-  DCHECK_GT(max_frames_pending, 0);
-
-  std::unique_ptr<cc::DisplayScheduler> scheduler(
-      new cc::DisplayScheduler(synthetic_begin_frame_source.get(),
-                               task_runner_.get(), max_frames_pending));
-
-  display_.reset(new cc::Display(
-      nullptr /* bitmap_manager */, gpu_memory_buffer_manager,
-      cc::RendererSettings(), std::move(synthetic_begin_frame_source),
-      std::move(display_output_surface), std::move(scheduler),
-      base::MakeUnique<cc::TextureMailboxDeleter>(task_runner_.get())));
-  display_->Initialize(this, display_compositor_->manager(), frame_sink_id_);
-  display_->SetVisible(true);
-}
-
-CompositorFrameSink::~CompositorFrameSink() {
-  display_compositor_->manager()->UnregisterSurfaceFactoryClient(
-      frame_sink_id_);
-  display_compositor_->manager()->InvalidateFrameSinkId(frame_sink_id_);
-}
-
-void CompositorFrameSink::SubmitCompositorFrame(
-    cc::CompositorFrame frame,
-    const base::Callback<void()>& callback) {
-  gfx::Size frame_size =
-      frame.delegated_frame_data->render_pass_list.back()->output_rect.size();
-  if (frame_size.IsEmpty() || frame_size != display_size_) {
-    if (!local_frame_id_.is_null())
-      factory_.Destroy(local_frame_id_);
-    local_frame_id_ = allocator_.GenerateId();
-    factory_.Create(local_frame_id_);
-    display_size_ = frame_size;
-    display_->Resize(display_size_);
-  }
-  display_->SetSurfaceId(cc::SurfaceId(frame_sink_id_, local_frame_id_),
-                         frame.metadata.device_scale_factor);
-  factory_.SubmitCompositorFrame(local_frame_id_, std::move(frame), callback);
-}
-
-void CompositorFrameSink::ReturnResources(
-    const cc::ReturnedResourceArray& resources) {
-  // TODO(fsamuel): Implement this.
-}
-
-void CompositorFrameSink::SetBeginFrameSource(
-    cc::BeginFrameSource* begin_frame_source) {
-  // TODO(fsamuel): Implement this.
-}
-
-void CompositorFrameSink::DisplayOutputSurfaceLost() {
-  // TODO(fsamuel): This looks like it would crash if a frame was in flight and
-  // will be submitted.
-  display_.reset();
-}
-
-void CompositorFrameSink::DisplayWillDrawAndSwap(
-    bool will_draw_and_swap,
-    const cc::RenderPassList& render_passes) {
-  // This notification is not relevant to our client outside of tests.
-}
-
-void CompositorFrameSink::DisplayDidDrawAndSwap() {
-  // This notification is not relevant to our client outside of tests. We
-  // unblock the client from the DrawCallback when the surface is going to
-  // be drawn.
-}
-
-}  // namespace surfaces
-}  // namespace ui