1 /* 2 * Copyright (C) 2010 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 COMPUTER, 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 QTDecompressionSession_h 27 #define QTDecompressionSession_h 28 29 #ifdef QTMOVIEWIN_EXPORTS 30 #define QTMOVIEWIN_API __declspec(dllexport) 31 #else 32 #define QTMOVIEWIN_API __declspec(dllimport) 33 #endif 34 35 #include "QTPixelBuffer.h" 36 37 #include <WTF/PassOwnPtr.h> 38 39 class QTDecompressionSessionClient; 40 typedef struct OpaqueICMDecompressionSession* ICMDecompressionSessionRef; 41 42 class QTMOVIEWIN_API QTDecompressionSession { 43 public: 44 static PassOwnPtr<QTDecompressionSession> create(unsigned long pixelFormat, size_t width, size_t height); 45 ~QTDecompressionSession(); 46 47 bool canDecompress(QTPixelBuffer); 48 49 // The resulting QTPixelBuffer will be a CG compatable ARGB pixel buffer. 50 QTPixelBuffer decompress(QTPixelBuffer); 51 52 private: 53 friend class QTDecompressionSessionClient; 54 QTDecompressionSession(unsigned long pixelFormat, size_t width, size_t height); 55 void initializeSession(); 56 57 unsigned long m_pixelFormat; 58 size_t m_width; 59 size_t m_height; 60 QTPixelBuffer m_latestFrame; 61 ICMDecompressionSessionRef m_session; 62 }; 63 64 #endif 65