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// Copyright 2014 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 ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
#define ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
#include "android_webview/browser/parent_compositor_draw_constraints.h"
#include "base/cancelable_callback.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/synchronization/lock.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/compositor_frame_ack.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/vector2d.h"
namespace android_webview {
namespace internal {
class RequestDrawGLTracker;
}
class BrowserViewRendererClient;
class InsideHardwareReleaseReset;
// This class is used to pass data between UI thread and RenderThread.
class SharedRendererState {
public:
SharedRendererState(scoped_refptr<base::MessageLoopProxy> ui_loop,
BrowserViewRendererClient* client);
~SharedRendererState();
void ClientRequestDrawGL();
void DidDrawGLProcess();
void SetScrollOffset(gfx::Vector2d scroll_offset);
gfx::Vector2d GetScrollOffset();
bool HasCompositorFrame() const;
void SetCompositorFrame(scoped_ptr<cc::CompositorFrame> frame,
bool force_commit);
scoped_ptr<cc::CompositorFrame> PassCompositorFrame();
bool ForceCommit() const;
bool IsInsideHardwareRelease() const;
// Returns true if the draw constraints are updated.
bool UpdateDrawConstraints(
const ParentCompositorDrawConstraints& parent_draw_constraints);
void PostExternalDrawConstraintsToChildCompositor(
const ParentCompositorDrawConstraints& parent_draw_constraints);
void DidSkipCommitFrame();
const ParentCompositorDrawConstraints ParentDrawConstraints() const;
void SetForceInvalidateOnNextDrawGL(
bool needs_force_invalidate_on_next_draw_gl);
bool NeedsForceInvalidateOnNextDrawGL() const;
void InsertReturnedResources(const cc::ReturnedResourceArray& resources);
void SwapReturnedResources(cc::ReturnedResourceArray* resources);
bool ReturnedResourcesEmpty() const;
private:
friend class InsideHardwareReleaseReset;
friend class internal::RequestDrawGLTracker;
void ResetRequestDrawGLCallback();
void ClientRequestDrawGLOnUIThread();
void UpdateParentDrawConstraintsOnUIThread();
void DidSkipCommitFrameOnUIThread();
void SetInsideHardwareRelease(bool inside);
scoped_refptr<base::MessageLoopProxy> ui_loop_;
BrowserViewRendererClient* client_on_ui_;
base::WeakPtr<SharedRendererState> ui_thread_weak_ptr_;
base::CancelableClosure request_draw_gl_cancelable_closure_;
// Accessed by both UI and RT thread.
mutable base::Lock lock_;
gfx::Vector2d scroll_offset_;
scoped_ptr<cc::CompositorFrame> compositor_frame_;
bool force_commit_;
bool inside_hardware_release_;
bool needs_force_invalidate_on_next_draw_gl_;
ParentCompositorDrawConstraints parent_draw_constraints_;
cc::ReturnedResourceArray returned_resources_;
base::Closure request_draw_gl_closure_;
base::WeakPtrFactory<SharedRendererState> weak_factory_on_ui_thread_;
DISALLOW_COPY_AND_ASSIGN(SharedRendererState);
};
class InsideHardwareReleaseReset {
public:
explicit InsideHardwareReleaseReset(
SharedRendererState* shared_renderer_state);
~InsideHardwareReleaseReset();
private:
SharedRendererState* shared_renderer_state_;
DISALLOW_COPY_AND_ASSIGN(InsideHardwareReleaseReset);
};
} // namespace android_webview
#endif // ANDROID_WEBVIEW_BROWSER_SHARED_RENDERER_STATE_H_
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