1 files changed, 126 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/ca/win/CACFLayerTreeHost.h b/Source/WebCore/platform/graphics/ca/win/CACFLayerTreeHost.h
new file mode 100644
index 0000000..fc61f39
--- /dev/null
+++ b/Source/WebCore/platform/graphics/ca/win/CACFLayerTreeHost.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2009 Apple 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. ``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 COMPUTER, INC. OR
+ * 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 CACFLayerTreeHost_h
+#define CACFLayerTreeHost_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "COMPtr.h"
+#include "Timer.h"
+
+#include <wtf/HashSet.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+#include <wtf/RetainPtr.h>
+#include <wtf/Vector.h>
+
+#include <CoreGraphics/CGGeometry.h>
+
+interface IDirect3DDevice9;
+struct WKCACFContext;
+
+typedef struct CGImage* CGImageRef;
+
+namespace WebCore {
+
+class PlatformCALayer;
+
+class CACFLayerTreeHostClient {
+public:
+    virtual ~CACFLayerTreeHostClient() { }
+    virtual void flushPendingGraphicsLayerChanges() { }
+};
+
+// FIXME: Currently there is a CACFLayerTreeHost for each WebView and each
+// has its own CARenderOGLContext and Direct3DDevice9, which is inefficient.
+// (https://bugs.webkit.org/show_bug.cgi?id=31855)
+class CACFLayerTreeHost : public RefCounted<CACFLayerTreeHost> {
+    friend PlatformCALayer;
+
+public:
+    static PassRefPtr<CACFLayerTreeHost> create();
+    ~CACFLayerTreeHost();
+
+    static bool acceleratedCompositingAvailable();
+
+    void setClient(CACFLayerTreeHostClient* client) { m_client = client; }
+
+    void setRootChildLayer(PlatformCALayer*);
+    void layerTreeDidChange();
+    void setWindow(HWND);
+    void paint();
+    void resize();
+    void flushPendingGraphicsLayerChangesSoon();
+    void flushPendingLayerChangesNow();
+
+protected:
+    PlatformCALayer* rootLayer() const;
+    void addPendingAnimatedLayer(PassRefPtr<PlatformCALayer>);
+
+private:
+    CACFLayerTreeHost();
+
+    bool createRenderer();
+    void destroyRenderer();
+    void renderSoon();
+    void renderTimerFired(Timer<CACFLayerTreeHost>*);
+
+    CGRect bounds() const;
+
+    void initD3DGeometry();
+
+    // Call this when the device window has changed size or when IDirect3DDevice9::Present returns
+    // D3DERR_DEVICELOST. Returns true if the device was recovered, false if rendering must be
+    // aborted and reattempted soon.
+    enum ResetReason { ChangedWindowSize, LostDevice };
+    bool resetDevice(ResetReason);
+
+    void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>());
+
+    CACFLayerTreeHostClient* m_client;
+    bool m_mightBeAbleToCreateDeviceLater;
+    COMPtr<IDirect3DDevice9> m_d3dDevice;
+    RefPtr<PlatformCALayer> m_rootLayer;
+    RefPtr<PlatformCALayer> m_rootChildLayer;
+    WKCACFContext* m_context;
+    HWND m_window;
+    Timer<CACFLayerTreeHost> m_renderTimer;
+    bool m_mustResetLostDeviceBeforeRendering;
+    bool m_shouldFlushPendingGraphicsLayerChanges;
+    bool m_isFlushingLayerChanges;
+    HashSet<RefPtr<PlatformCALayer> > m_pendingAnimatedLayers;
+
+#ifndef NDEBUG
+    bool m_printTree;
+#endif
+};
+
+}
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif // CACFLayerTreeHost_h