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// 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.
#ifndef OffscreenCanvasFrameDispatcherImpl_h
#define OffscreenCanvasFrameDispatcherImpl_h
#include "cc/ipc/mojo_compositor_frame_sink.mojom-blink.h"
#include "cc/output/begin_frame_args.h"
#include "cc/resources/shared_bitmap.h"
#include "cc/surfaces/surface_id.h"
#include "cc/surfaces/surface_id_allocator.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "platform/graphics/OffscreenCanvasFrameDispatcher.h"
#include "platform/graphics/StaticBitmapImage.h"
#include "wtf/Compiler.h"
#include <memory>
namespace blink {
class PLATFORM_EXPORT OffscreenCanvasFrameDispatcherImpl final
: public OffscreenCanvasFrameDispatcher,
NON_EXPORTED_BASE(
public cc::mojom::blink::MojoCompositorFrameSinkClient) {
public:
OffscreenCanvasFrameDispatcherImpl(OffscreenCanvasFrameDispatcherClient*,
uint32_t clientId,
uint32_t sinkId,
int canvasId,
int width,
int height);
// OffscreenCanvasFrameDispatcher implementation.
~OffscreenCanvasFrameDispatcherImpl() final;
void dispatchFrame(RefPtr<StaticBitmapImage>,
double commitStartTime,
bool isWebGLSoftwareRendering = false) final;
void reclaimResource(unsigned resourceId) final;
void reshape(int width, int height) final;
// cc::mojom::blink::MojoCompositorFrameSinkClient implementation.
void DidReceiveCompositorFrameAck() final;
void OnBeginFrame(const cc::BeginFrameArgs&) final;
void ReclaimResources(const cc::ReturnedResourceArray& resources) final;
void WillDrawSurface() final;
// This enum is used in histogram, so it should be append-only.
enum OffscreenCanvasCommitType {
CommitGPUCanvasGPUCompositing = 0,
CommitGPUCanvasSoftwareCompositing = 1,
CommitSoftwareCanvasGPUCompositing = 2,
CommitSoftwareCanvasSoftwareCompositing = 3,
OffscreenCanvasCommitTypeCount,
};
private:
// Surface-related
cc::SurfaceIdAllocator m_surfaceIdAllocator;
void scheduleSyntheticBeginFrame(); // To be removed (crbug.com/674744)
TaskHandle m_syntheticBeginFrameTask; // To be removed (crbug.com/674744)
const cc::FrameSinkId m_frameSinkId;
cc::LocalFrameId m_currentLocalFrameId;
int m_width;
int m_height;
bool m_changeSizeForNextCommit;
unsigned m_nextResourceId;
HashMap<unsigned, RefPtr<StaticBitmapImage>> m_cachedImages;
HashMap<unsigned, std::unique_ptr<cc::SharedBitmap>> m_sharedBitmaps;
HashMap<unsigned, GLuint> m_cachedTextureIds;
HashSet<unsigned> m_spareResourceLocks;
bool verifyImageSize(const IntSize);
cc::mojom::blink::MojoCompositorFrameSinkPtr m_sink;
mojo::Binding<cc::mojom::blink::MojoCompositorFrameSinkClient> m_binding;
int m_placeholderCanvasId;
void setTransferableResourceToSharedBitmap(cc::TransferableResource&,
RefPtr<StaticBitmapImage>);
void setTransferableResourceToSharedGPUContext(cc::TransferableResource&,
RefPtr<StaticBitmapImage>);
void setTransferableResourceToStaticBitmapImage(cc::TransferableResource&,
RefPtr<StaticBitmapImage>);
};
} // namespace blink
#endif // OffscreenCanvasFrameDispatcherImpl_h
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