1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef LegacyCACFLayerTreeHost_h 27 #define LegacyCACFLayerTreeHost_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "CACFLayerTreeHost.h" 32 33 namespace WebCore { 34 35 // FIXME: Currently there is a LegacyCACFLayerTreeHost for each WebView and each 36 // has its own WKCACFContext and Direct3DDevice9, which is inefficient. 37 // (https://bugs.webkit.org/show_bug.cgi?id=31855) 38 class LegacyCACFLayerTreeHost : public CACFLayerTreeHost { 39 public: 40 static PassRefPtr<LegacyCACFLayerTreeHost> create(); 41 virtual ~LegacyCACFLayerTreeHost(); 42 43 private: 44 LegacyCACFLayerTreeHost(); 45 46 void initD3DGeometry(); 47 48 // Call this when the device window has changed size or when IDirect3DDevice9::Present returns 49 // D3DERR_DEVICELOST. Returns true if the device was recovered, false if rendering must be 50 // aborted and reattempted soon. 51 enum ResetReason { ChangedWindowSize, LostDevice }; 52 bool resetDevice(ResetReason); 53 54 void renderSoon(); 55 void renderTimerFired(Timer<LegacyCACFLayerTreeHost>*); 56 57 virtual void initializeContext(void* userData, PlatformCALayer*); 58 virtual void resize(); 59 virtual bool createRenderer(); 60 virtual void destroyRenderer(); 61 virtual CFTimeInterval lastCommitTime() const; 62 virtual void flushContext(); 63 virtual void contextDidChange(); 64 virtual void paint(); 65 virtual void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>()); 66 67 Timer<LegacyCACFLayerTreeHost> m_renderTimer; 68 COMPtr<IDirect3DDevice9> m_d3dDevice; 69 WKCACFContext* m_context; 70 bool m_mightBeAbleToCreateDeviceLater; 71 bool m_mustResetLostDeviceBeforeRendering; 72 73 #ifndef NDEBUG 74 bool m_printTree; 75 #endif 76 }; 77 78 } // namespace WebCore 79 80 #endif // USE(ACCELERATED_COMPOSITING) 81 82 #endif // LegacyCACFLayerTreeHost_h 83