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// Copyright 2011 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 CCScheduler_h
#define CCScheduler_h
#include "CCFrameRateController.h"
#include "CCSchedulerStateMachine.h"
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
namespace cc {
class CCThread;
struct CCScheduledActionDrawAndSwapResult {
CCScheduledActionDrawAndSwapResult()
: didDraw(false)
, didSwap(false)
{
}
CCScheduledActionDrawAndSwapResult(bool didDraw, bool didSwap)
: didDraw(didDraw)
, didSwap(didSwap)
{
}
bool didDraw;
bool didSwap;
};
class CCSchedulerClient {
public:
virtual void scheduledActionBeginFrame() = 0;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapIfPossible() = 0;
virtual CCScheduledActionDrawAndSwapResult scheduledActionDrawAndSwapForced() = 0;
virtual void scheduledActionUpdateMoreResources(double monotonicTimeLimit) = 0;
virtual void scheduledActionCommit() = 0;
virtual void scheduledActionBeginContextRecreation() = 0;
virtual void scheduledActionAcquireLayerTexturesForMainThread() = 0;
protected:
virtual ~CCSchedulerClient() { }
};
class CCScheduler : CCFrameRateControllerClient {
WTF_MAKE_NONCOPYABLE(CCScheduler);
public:
static PassOwnPtr<CCScheduler> create(CCSchedulerClient* client, PassOwnPtr<CCFrameRateController> frameRateController)
{
return adoptPtr(new CCScheduler(client, frameRateController));
}
virtual ~CCScheduler();
void setCanBeginFrame(bool);
void setVisible(bool);
void setCanDraw(bool);
void setNeedsCommit();
// Like setNeedsCommit(), but ensures a commit will definitely happen even if we are not visible.
void setNeedsForcedCommit();
void setNeedsRedraw();
void setMainThreadNeedsLayerTextures();
// Like setNeedsRedraw(), but ensures the draw will definitely happen even if we are not visible.
void setNeedsForcedRedraw();
void beginFrameComplete(bool hasResourceUpdates);
void beginFrameAborted();
void setMaxFramesPending(int);
void setSwapBuffersCompleteSupported(bool);
void didSwapBuffersComplete();
void didLoseContext();
void didRecreateContext();
bool commitPending() const { return m_stateMachine.commitPending(); }
bool redrawPending() const { return m_stateMachine.redrawPending(); }
void setTimebaseAndInterval(double timebase, double intervalSeconds);
// CCFrameRateControllerClient implementation
virtual void vsyncTick() OVERRIDE;
void updateResourcesComplete();
private:
CCScheduler(CCSchedulerClient*, PassOwnPtr<CCFrameRateController>);
void processScheduledActions();
CCSchedulerClient* m_client;
OwnPtr<CCFrameRateController> m_frameRateController;
CCSchedulerStateMachine m_stateMachine;
bool m_updateResourcesCompletePending;
};
}
#endif // CCScheduler_h
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