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#include "config.h" 32#include "platform/graphics/gpu/AcceleratedImageBufferSurface.h" 33 34#include "public/platform/Platform.h" 35#include "public/platform/WebGraphicsContext3DProvider.h" 36#include "third_party/skia/include/core/SkCanvas.h" 37#include "third_party/skia/include/core/SkDevice.h" 38#include "third_party/skia/include/gpu/GrRenderTarget.h" 39#include "third_party/skia/include/gpu/GrTexture.h" 40#include "wtf/PassOwnPtr.h" 41#include "wtf/RefPtr.h" 42 43namespace blink { 44 45AcceleratedImageBufferSurface::AcceleratedImageBufferSurface(const IntSize& size, OpacityMode opacityMode, int msaaSampleCount) 46 : ImageBufferSurface(size, opacityMode) 47{ 48 m_contextProvider = adoptPtr(blink::Platform::current()->createSharedOffscreenGraphicsContext3DProvider()); 49 if (!m_contextProvider) 50 return; 51 GrContext* grContext = m_contextProvider->grContext(); 52 if (!grContext) 53 return; 54 55 SkAlphaType alphaType = (Opaque == opacityMode) ? kOpaque_SkAlphaType : kPremul_SkAlphaType; 56 SkImageInfo info = SkImageInfo::MakeN32(size.width(), size.height(), alphaType); 57 m_surface = adoptPtr(SkSurface::NewScratchRenderTarget(grContext, info, msaaSampleCount)); 58 if (!m_surface.get()) 59 return; 60 clear(); 61} 62 63Platform3DObject AcceleratedImageBufferSurface::getBackingTexture() const 64{ 65 GrRenderTarget* renderTarget = m_surface->getCanvas()->getTopDevice()->accessRenderTarget(); 66 if (renderTarget) { 67 return renderTarget->asTexture()->getTextureHandle(); 68 } 69 return 0; 70} 71 72} // namespace blink 73