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// Copyright 2015 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 CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_
#define CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_
#include <stddef.h>
#include <stdint.h>
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/single_thread_task_runner.h"
#include "cc/output/compositor_frame.h"
#include "content/browser/android/synchronous_compositor_base.h"
#include "ui/gfx/geometry/scroll_offset.h"
#include "ui/gfx/geometry/size_f.h"
namespace IPC {
class Sender;
}
namespace content {
class RenderWidgetHostViewAndroid;
class SynchronousCompositorClient;
struct DidOverscrollParams;
struct SyncCompositorCommonBrowserParams;
struct SyncCompositorCommonRendererParams;
class SynchronousCompositorHost : public SynchronousCompositorBase {
public:
~SynchronousCompositorHost() override;
// SynchronousCompositor overrides.
scoped_ptr<cc::CompositorFrame> DemandDrawHw(
const gfx::Size& surface_size,
const gfx::Transform& transform,
const gfx::Rect& viewport,
const gfx::Rect& clip,
const gfx::Rect& viewport_rect_for_tile_priority,
const gfx::Transform& transform_for_tile_priority) override;
bool DemandDrawSw(SkCanvas* canvas) override;
void ReturnResources(const cc::CompositorFrameAck& frame_ack) override;
void SetMemoryPolicy(size_t bytes_limit) override;
void DidChangeRootLayerScrollOffset(
const gfx::ScrollOffset& root_offset) override;
void SetIsActive(bool is_active) override;
void OnComputeScroll(base::TimeTicks animation_time) override;
// SynchronousCompositorBase overrides.
InputEventAckState HandleInputEvent(
const blink::WebInputEvent& input_event) override;
void DidOverscroll(const DidOverscrollParams& over_scroll_params) override;
void BeginFrame(const cc::BeginFrameArgs& args) override;
bool OnMessageReceived(const IPC::Message& message) override;
void DidBecomeCurrent() override;
private:
class ScopedSendZeroMemory;
struct SharedMemoryWithSize;
friend class ScopedSetZeroMemory;
friend class SynchronousCompositorBase;
SynchronousCompositorHost(RenderWidgetHostViewAndroid* rwhva,
SynchronousCompositorClient* client,
bool async_input,
bool use_in_proc_software_draw);
void PopulateCommonParams(SyncCompositorCommonBrowserParams* params);
void ProcessCommonParams(const SyncCompositorCommonRendererParams& params);
void UpdateNeedsBeginFrames();
void UpdateFrameMetaData(const cc::CompositorFrameMetadata& frame_metadata);
void OnOverScroll(const SyncCompositorCommonRendererParams& params,
const DidOverscrollParams& over_scroll_params);
void SendAsyncCompositorStateIfNeeded();
void UpdateStateTask();
bool DemandDrawSwInProc(SkCanvas* canvas);
void SetSoftwareDrawSharedMemoryIfNeeded(size_t stride, size_t buffer_size);
void SendZeroMemory();
RenderWidgetHostViewAndroid* const rwhva_;
SynchronousCompositorClient* const client_;
const scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
const int routing_id_;
IPC::Sender* const sender_;
const bool async_input_;
const bool use_in_process_zero_copy_software_draw_;
bool is_active_;
size_t bytes_limit_;
cc::ReturnedResourceArray returned_resources_;
scoped_ptr<SharedMemoryWithSize> software_draw_shm_;
// Updated by both renderer and browser.
gfx::ScrollOffset root_scroll_offset_;
bool root_scroll_offset_updated_by_browser_;
// From renderer.
uint32_t renderer_param_version_;
bool need_animate_scroll_;
uint32_t need_invalidate_count_;
bool need_begin_frame_;
uint32_t did_activate_pending_tree_count_;
base::WeakPtrFactory<SynchronousCompositorHost> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorHost);
};
} // namespace content
#endif // CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_
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