1 files changed, 127 insertions, 1 deletions
diff --git a/cc/proxy.h b/cc/proxy.h
index 638cbb2..30a62cc 100644
--- a/cc/proxy.h
+++ b/cc/proxy.h
@@ -1,3 +1,129 @@
-// Copyright 2012 The Chromium Authors. All rights reserved.
+// 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 CCProxy_h
+#define CCProxy_h
+
+#include "base/basictypes.h"
+#include <public/WebCompositorOutputSurface.h>
+#include <wtf/PassOwnPtr.h>
+#include <wtf/PassRefPtr.h>
+
+namespace cc {
+
+class CCThread;
+class IntRect;
+class IntSize;
+struct CCRenderingStats;
+struct RendererCapabilities;
+
+// Abstract class responsible for proxying commands from the main-thread side of
+// the compositor over to the compositor implementation.
+class CCProxy {
+public:
+    static void setMainThread(CCThread*);
+    static CCThread* mainThread();
+
+    static bool hasImplThread();
+    static void setImplThread(CCThread*);
+    static CCThread* implThread();
+
+    // Returns 0 if the current thread is neither the main thread nor the impl thread.
+    static CCThread* currentThread();
+
+    virtual ~CCProxy();
+
+    virtual bool compositeAndReadback(void *pixels, const IntRect&) = 0;
+
+    virtual void startPageScaleAnimation(const IntSize& targetPosition, bool useAnchor, float scale, double durationSec) = 0;
+
+    virtual void finishAllRendering() = 0;
+
+    virtual bool isStarted() const = 0;
+
+    // Attempts to initialize a context to use for rendering. Returns false if the context could not be created.
+    // The context will not be used and no frames may be produced until initializeRenderer() is called.
+    virtual bool initializeContext() = 0;
+
+    // Indicates that the compositing surface associated with our context is ready to use.
+    virtual void setSurfaceReady() = 0;
+
+    virtual void setVisible(bool) = 0;
+
+    // Attempts to initialize the layer renderer. Returns false if the context isn't usable for compositing.
+    virtual bool initializeRenderer() = 0;
+
+    // Attempts to recreate the context and layer renderer after a context lost. Returns false if the renderer couldn't be
+    // reinitialized.
+    virtual bool recreateContext() = 0;
+
+    virtual void renderingStats(CCRenderingStats*) = 0;
+
+    virtual const RendererCapabilities& rendererCapabilities() const = 0;
+
+    virtual void setNeedsAnimate() = 0;
+    virtual void setNeedsCommit() = 0;
+    virtual void setNeedsRedraw() = 0;
+
+    virtual void didAddAnimation() = 0;
+
+    virtual bool commitRequested() const = 0;
+
+    virtual void start() = 0; // Must be called before using the proxy.
+    virtual void stop() = 0; // Must be called before deleting the proxy.
+
+    // Forces 3D commands on all contexts to wait for all previous SwapBuffers to finish before executing in the GPU
+    // process.
+    virtual void forceSerializeOnSwapBuffers() = 0;
+
+    // Maximum number of sub-region texture updates supported for each commit.
+    virtual size_t maxPartialTextureUpdates() const = 0;
+
+    virtual void acquireLayerTextures() = 0;
+
+    // Debug hooks
+#ifndef NDEBUG
+    static bool isMainThread();
+    static bool isImplThread();
+    static bool isMainThreadBlocked();
+    static void setMainThreadBlocked(bool);
+#endif
+
+    // Testing hooks
+    virtual void loseContext() = 0;
+
+#ifndef NDEBUG
+    static void setCurrentThreadIsImplThread(bool);
+#endif
+
+protected:
+    CCProxy();
+    friend class DebugScopedSetImplThread;
+    friend class DebugScopedSetMainThreadBlocked;
+
+private:
+    DISALLOW_COPY_AND_ASSIGN(CCProxy);
+};
+
+class DebugScopedSetMainThreadBlocked {
+public:
+    DebugScopedSetMainThreadBlocked()
+    {
+#if !ASSERT_DISABLED
+        ASSERT(!CCProxy::isMainThreadBlocked());
+        CCProxy::setMainThreadBlocked(true);
+#endif
+    }
+    ~DebugScopedSetMainThreadBlocked()
+    {
+#if !ASSERT_DISABLED
+        ASSERT(CCProxy::isMainThreadBlocked());
+        CCProxy::setMainThreadBlocked(false);
+#endif
+    }
+};
+
+}
+
+#endif