15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 27757ec2eadfa2dd8ac2aeed0a4399e9b07ec38cbBen Murdoch * Copyright (C) 2013 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2609380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#ifndef DecodingImageGenerator_h 2709380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#define DecodingImageGenerator_h 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#include "SkImageGenerator.h" 3009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#include "SkImageInfo.h" 3109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 3209380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#include "wtf/RefPtr.h" 3309380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 3409380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)class SkData; 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3809380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)class ImageFrameGenerator; 3909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 4009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)// Implements SkImageGenerator and used by SkPixelRef to populate a discardable 4109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)// memory with decoded pixels. 4209380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)// 4309380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)// This class does not own an ImageDecode. It does not own encoded data. It serves 4409380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)// as and adapter to ImageFrameGenerator which actually performs decoding. 4509380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)class DecodingImageGenerator FINAL : public SkImageGenerator { 4609380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)public: 4709380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) DecodingImageGenerator(PassRefPtr<ImageFrameGenerator>, const SkImageInfo&, size_t index); 4809380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual ~DecodingImageGenerator(); 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 5009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) void setGenerationId(size_t id) { m_generationId = id; } 5109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 52f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles)protected: 53f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) virtual SkData* onRefEncodedData() OVERRIDE; 54f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) virtual bool onGetInfo(SkImageInfo*) OVERRIDE; 55f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) virtual bool onGetPixels(const SkImageInfo&, void* pixels, size_t rowBytes, SkPMColor ctable[], int* ctableCount) OVERRIDE; 56f6b7aed3f7ce69aca0d7a032d144cbd088b04393Torne (Richard Coles) 5709380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)private: 5809380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) RefPtr<ImageFrameGenerator> m_frameGenerator; 5909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) SkImageInfo m_imageInfo; 6009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) size_t m_frameIndex; 6109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) size_t m_generationId; 6209380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)}; 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 6509380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) 6609380295ba73501a205346becac22c6978e4671dTorne (Richard Coles)#endif // DecodingImageGenerator_h_ 67