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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CCThreadProxy_h
#define CCThreadProxy_h
#include "CCAnimationEvents.h"
#include "CCCompletionEvent.h"
#include "CCLayerTreeHostImpl.h"
#include "CCProxy.h"
#include "CCScheduler.h"
#include <wtf/OwnPtr.h>
namespace WebCore {
class CCInputHandler;
class CCLayerTreeHost;
class CCScheduler;
class CCScopedThreadProxy;
class CCTextureUpdateQueue;
class CCTextureUpdateController;
class CCThread;
class CCThreadProxyContextRecreationTimer;
class CCThreadProxy : public CCProxy, CCLayerTreeHostImplClient, CCSchedulerClient {
public:
static PassOwnPtr<CCProxy> create(CCLayerTreeHost*);
virtual ~CCThreadProxy();
// CCProxy implementation
virtual bool compositeAndReadback(void *pixels, const IntRect&) OVERRIDE;
virtual void startPageScaleAnimation(const IntSize& targetPosition, bool useAnchor, float scale, double duration) OVERRIDE;
virtual void finishAllRendering() OVERRIDE;
virtual bool isStarted() const OVERRIDE;
virtual bool initializeContext() OVERRIDE;
virtual void setSurfaceReady() OVERRIDE;
virtual void setVisible(bool) OVERRIDE;
virtual bool initializeRenderer() OVERRIDE;
virtual bool recreateContext() OVERRIDE;
virtual void implSideRenderingStats(CCRenderingStats&) OVERRIDE;
virtual const RendererCapabilities& rendererCapabilities() const OVERRIDE;
virtual void loseContext() OVERRIDE;
virtual void setNeedsAnimate() OVERRIDE;
virtual void setNeedsCommit() OVERRIDE;
virtual void setNeedsRedraw() OVERRIDE;
virtual bool commitRequested() const OVERRIDE;
virtual void didAddAnimation() OVERRIDE { }
virtual void start() OVERRIDE;
virtual void stop() OVERRIDE;
virtual size_t maxPartialTextureUpdates() const OVERRIDE;
virtual void acquireLayerTextures() OVERRIDE;
virtual void forceSerializeOnSwapBuffers() OVERRIDE;
// CCLayerTreeHostImplClient implementation
virtual void didLoseContextOnImplThread() OVERRIDE;
virtual void onSwapBuffersCompleteOnImplThread() OVERRIDE;
virtual void onVSyncParametersChanged(double monotonicTimebase, double intervalInSeconds) OVERRIDE;
virtual void onCanDrawStateChanged(bool canDraw) OVERRIDE;
virtual void setNeedsRedrawOnImplThread() OVERRIDE;
virtual void setNeedsCommitOnImplThread() OVERRIDE;
virtual void postAnimationEventsToMainThreadOnImplThread(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime) OVERRIDE;
// CCSchedulerClient implementation
virtual bool hasMoreResourceUpdates() const OVERRIDE;
virtual void scheduledActionBeginFrame() OVERRIDE;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapIfPossible() OVERRIDE;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapForced() OVERRIDE;
virtual void scheduledActionUpdateMoreResources(double monotonicTimeLimit) OVERRIDE;
virtual void scheduledActionCommit() OVERRIDE;
virtual void scheduledActionBeginContextRecreation() OVERRIDE;
virtual void scheduledActionAcquireLayerTexturesForMainThread() OVERRIDE;
private:
explicit CCThreadProxy(CCLayerTreeHost*);
friend class CCThreadProxyContextRecreationTimer;
// Set on impl thread, read on main thread.
struct BeginFrameAndCommitState {
BeginFrameAndCommitState()
: monotonicFrameBeginTime(0)
{
}
double monotonicFrameBeginTime;
OwnPtr<CCScrollAndScaleSet> scrollInfo;
bool contentsTexturesWereDeleted;
size_t memoryAllocationLimitBytes;
};
OwnPtr<BeginFrameAndCommitState> m_pendingBeginFrameRequest;
// Called on main thread
void beginFrame();
void didCommitAndDrawFrame();
void didCompleteSwapBuffers();
void setAnimationEvents(PassOwnPtr<CCAnimationEventsVector>, double wallClockTime);
void beginContextRecreation();
void tryToRecreateContext();
// Called on impl thread
struct ReadbackRequest {
CCCompletionEvent completion;
bool success;
void* pixels;
IntRect rect;
};
void forceBeginFrameOnImplThread(CCCompletionEvent*);
void beginFrameCompleteOnImplThread(CCCompletionEvent*, PassOwnPtr<CCTextureUpdateQueue>, bool contentsTexturesWereDeleted);
void beginFrameAbortedOnImplThread();
void requestReadbackOnImplThread(ReadbackRequest*);
void requestStartPageScaleAnimationOnImplThread(IntSize targetPosition, bool useAnchor, float scale, double durationSec);
void finishAllRenderingOnImplThread(CCCompletionEvent*);
void initializeImplOnImplThread(CCCompletionEvent*, PassOwnPtr<CCInputHandler>);
void setSurfaceReadyOnImplThread();
void setVisibleOnImplThread(CCCompletionEvent*, bool);
void initializeContextOnImplThread(CCGraphicsContext*);
void initializeRendererOnImplThread(CCCompletionEvent*, bool* initializeSucceeded, RendererCapabilities*);
void layerTreeHostClosedOnImplThread(CCCompletionEvent*);
void setFullRootLayerDamageOnImplThread();
void acquireLayerTexturesForMainThreadOnImplThread(CCCompletionEvent*);
void recreateContextOnImplThread(CCCompletionEvent*, CCGraphicsContext*, bool* recreateSucceeded, RendererCapabilities*);
void implSideRenderingStatsOnImplThread(CCCompletionEvent*, CCRenderingStats*);
CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapInternal(bool forcedDraw);
void forceSerializeOnSwapBuffersOnImplThread(CCCompletionEvent*);
void setNeedsForcedCommitOnImplThread();
// Accessed on main thread only.
bool m_animateRequested; // Set only when setNeedsAnimate is called.
bool m_commitRequested; // Set only when setNeedsCommit is called.
bool m_commitRequestSentToImplThread; // Set by setNeedsCommit and setNeedsAnimate.
bool m_forcedCommitRequested;
OwnPtr<CCThreadProxyContextRecreationTimer> m_contextRecreationTimer;
CCLayerTreeHost* m_layerTreeHost;
bool m_rendererInitialized;
RendererCapabilities m_RendererCapabilitiesMainThreadCopy;
bool m_started;
bool m_texturesAcquired;
bool m_inCompositeAndReadback;
OwnPtr<CCLayerTreeHostImpl> m_layerTreeHostImpl;
OwnPtr<CCInputHandler> m_inputHandlerOnImplThread;
OwnPtr<CCScheduler> m_schedulerOnImplThread;
RefPtr<CCScopedThreadProxy> m_mainThreadProxy;
// Holds on to the context we might use for compositing in between initializeContext()
// and initializeRenderer() calls.
OwnPtr<CCGraphicsContext> m_contextBeforeInitializationOnImplThread;
// Set when the main thread is waiting on a scheduledActionBeginFrame to be issued.
CCCompletionEvent* m_beginFrameCompletionEventOnImplThread;
// Set when the main thread is waiting on a readback.
ReadbackRequest* m_readbackRequestOnImplThread;
// Set when the main thread is waiting on a commit to complete.
CCCompletionEvent* m_commitCompletionEventOnImplThread;
// Set when the main thread is waiting on layers to be drawn.
CCCompletionEvent* m_textureAcquisitionCompletionEventOnImplThread;
OwnPtr<CCTextureUpdateController> m_currentTextureUpdateControllerOnImplThread;
// Set when we need to reset the contentsTexturesPurged flag after the
// commit.
bool m_resetContentsTexturesPurgedAfterCommitOnImplThread;
// Set when the next draw should post didCommitAndDrawFrame to the main thread.
bool m_nextFrameIsNewlyCommittedFrameOnImplThread;
bool m_renderVSyncEnabled;
};
}
#endif
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