| // 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 "content/browser/renderer_host/offscreen_canvas_compositor_frame_sink_manager.h" |
| |
| #include "base/lazy_instance.h" |
| #include "cc/surfaces/surface_manager.h" |
| #include "content/browser/compositor/surface_utils.h" |
| |
| namespace content { |
| |
| namespace { |
| base::LazyInstance<OffscreenCanvasCompositorFrameSinkManager>::Leaky g_manager = |
| LAZY_INSTANCE_INITIALIZER; |
| } |
| |
| OffscreenCanvasCompositorFrameSinkManager:: |
| OffscreenCanvasCompositorFrameSinkManager() { |
| GetSurfaceManager()->AddObserver(this); |
| } |
| |
| OffscreenCanvasCompositorFrameSinkManager:: |
| ~OffscreenCanvasCompositorFrameSinkManager() { |
| registered_surface_instances_.clear(); |
| GetSurfaceManager()->RemoveObserver(this); |
| } |
| |
| OffscreenCanvasCompositorFrameSinkManager* |
| OffscreenCanvasCompositorFrameSinkManager::GetInstance() { |
| return g_manager.Pointer(); |
| } |
| |
| void OffscreenCanvasCompositorFrameSinkManager::OnSurfaceCreated( |
| const cc::SurfaceInfo& surface_info) { |
| auto surface_iter = |
| registered_surface_instances_.find(surface_info.id().frame_sink_id()); |
| if (surface_iter == registered_surface_instances_.end()) |
| return; |
| OffscreenCanvasSurfaceImpl* surface_impl = surface_iter->second; |
| surface_impl->OnSurfaceCreated(surface_info); |
| } |
| |
| void OffscreenCanvasCompositorFrameSinkManager:: |
| RegisterOffscreenCanvasSurfaceInstance( |
| const cc::FrameSinkId& frame_sink_id, |
| OffscreenCanvasSurfaceImpl* surface_instance) { |
| DCHECK(surface_instance); |
| DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 0u); |
| registered_surface_instances_[frame_sink_id] = surface_instance; |
| } |
| |
| void OffscreenCanvasCompositorFrameSinkManager:: |
| UnregisterOffscreenCanvasSurfaceInstance( |
| const cc::FrameSinkId& frame_sink_id) { |
| DCHECK_EQ(registered_surface_instances_.count(frame_sink_id), 1u); |
| registered_surface_instances_.erase(frame_sink_id); |
| } |
| |
| OffscreenCanvasSurfaceImpl* |
| OffscreenCanvasCompositorFrameSinkManager::GetSurfaceInstance( |
| const cc::FrameSinkId& frame_sink_id) { |
| auto search = registered_surface_instances_.find(frame_sink_id); |
| if (search != registered_surface_instances_.end()) { |
| return search->second; |
| } |
| return nullptr; |
| } |
| |
| } // namespace content |