1 /* 2 * Copyright 2012, The Android Open Source Project 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 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 CanvasTexture_h 27 #define CanvasTexture_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "CanvasLayer.h" 32 33 #include <wtf/RefPtr.h> 34 #include <utils/threads.h> 35 36 namespace android { 37 class SurfaceTexture; 38 class SurfaceTextureClient; 39 } 40 41 namespace WebCore { 42 43 class CanvasTexture : public ThreadSafeRefCounted<CanvasTexture> { 44 45 public: 46 /******************************************** 47 * Called by both threads 48 ********************************************/ 49 static PassRefPtr<CanvasTexture> getCanvasTexture(CanvasLayer* layer); 50 bool setHwAccelerated(bool hwAccelerated); 51 52 /******************************************** 53 * Called by WebKit thread 54 ********************************************/ 55 void setSize(const IntSize& size); 56 SurfaceTextureClient* nativeWindow(); 57 bool uploadImageBuffer(ImageBuffer* imageBuffer); hasValidTexture()58 bool hasValidTexture() { return m_hasValidTexture; } 59 60 /******************************************** 61 * Called by UI thread WITH GL context 62 ********************************************/ 63 virtual ~CanvasTexture(); 64 void requireTexture(); texture()65 GLuint texture() { requireTexture(); return m_texture; } 66 bool updateTexImage(); 67 68 private: 69 /******************************************** 70 * Called by both threads 71 ********************************************/ 72 void destroySurfaceTextureLocked(); 73 74 /******************************************** 75 * Called by WebKit thread 76 ********************************************/ 77 CanvasTexture(int layerId); 78 bool useSurfaceTexture(); 79 80 IntSize m_size; 81 int m_layerId; 82 GLuint m_texture; 83 android::Mutex m_surfaceLock; 84 sp<android::SurfaceTexture> m_surfaceTexture; 85 sp<android::SurfaceTextureClient> m_ANW; 86 bool m_hasValidTexture; 87 bool m_useHwAcceleration; 88 89 }; 90 91 } // namespace WebCore 92 93 #endif // USE(ACCELERATED_COMPOSITING) 94 95 #endif // CanvasTexture_h 96