1 /* 2 * Copyright (C) 2013 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef GraphicsContextRecorder_h 32 #define GraphicsContextRecorder_h 33 34 #include "platform/PlatformExport.h" 35 #include "platform/graphics/GraphicsContext.h" 36 #include "third_party/skia/include/core/SkPicture.h" 37 #include "wtf/RefCounted.h" 38 39 namespace WebCore { 40 41 class PLATFORM_EXPORT GraphicsContextSnapshot : public RefCounted<GraphicsContextSnapshot> { 42 WTF_MAKE_NONCOPYABLE(GraphicsContextSnapshot); 43 public: 44 typedef Vector<Vector<double> > Timings; 45 46 PassOwnPtr<ImageBuffer> replay(unsigned fromStep = 0, unsigned toStep = 0) const; 47 PassOwnPtr<Timings> profile(unsigned minIterations, double minDuration) const; 48 49 private: 50 friend class GraphicsContextRecorder; 51 GraphicsContextSnapshot(PassRefPtr<SkPicture>, bool isCerteainlyOpaque); 52 53 PassOwnPtr<ImageBuffer> createImageBuffer() const; 54 55 RefPtr<SkPicture> m_picture; 56 bool m_isCertainlyOpaque; 57 }; 58 59 class PLATFORM_EXPORT GraphicsContextRecorder { 60 WTF_MAKE_NONCOPYABLE(GraphicsContextRecorder); 61 public: GraphicsContextRecorder()62 GraphicsContextRecorder() { } 63 GraphicsContext* record(const IntSize&, bool isCertainlyOpaque); 64 PassRefPtr<GraphicsContextSnapshot> stop(); 65 66 private: 67 RefPtr<SkPicture> m_picture; 68 OwnPtr<GraphicsContext> m_context; 69 bool m_isCertainlyOpaque; 70 }; 71 72 } 73 74 #endif // GraphicsContextRecorder_h 75