00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://www.ogre3d.org/ 00006 00007 Copyright (c) 2000-2006 Torus Knot Software Ltd 00008 Also see acknowledgements in Readme.html 00009 00010 This program is free software; you can redistribute it and/or modify it under 00011 the terms of the GNU Lesser General Public License as published by the Free Software 00012 Foundation; either version 2 of the License, or (at your option) any later 00013 version. 00014 00015 This program is distributed in the hope that it will be useful, but WITHOUT 00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public License along with 00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple 00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to 00022 http://www.gnu.org/copyleft/lesser.txt. 00023 00024 You may alternatively use this source under the terms of a specific version of 00025 the OGRE Unrestricted License provided you have obtained such a license from 00026 Torus Knot Software Ltd. 00027 ----------------------------------------------------------------------------- 00028 */ 00029 #ifndef _Codec_H__ 00030 #define _Codec_H__ 00031 00032 #include "OgrePrerequisites.h" 00033 #include "OgreSharedPtr.h" 00034 #include "OgreDataStream.h" 00035 #include "OgreIteratorWrappers.h" 00036 #include "OgreStringVector.h" 00037 00038 namespace Ogre { 00039 00049 class _OgreExport Codec : public CodecAlloc 00050 { 00051 protected: 00052 typedef std::map< String, Codec* > CodecList; 00055 static CodecList ms_mapCodecs; 00056 00057 public: 00058 class _OgrePrivate CodecData : public CodecAlloc 00059 { 00060 public: 00061 virtual ~CodecData() {}; 00062 00065 virtual String dataType() const { return "CodecData"; }; 00066 }; 00067 typedef SharedPtr<CodecData> CodecDataPtr; 00068 00069 typedef ConstMapIterator<CodecList> CodecIterator; 00070 00071 public: 00072 virtual ~Codec(); 00073 00076 static void registerCodec( Codec *pCodec ) 00077 { 00078 ms_mapCodecs[pCodec->getType()] = pCodec; 00079 } 00080 00083 static void unRegisterCodec( Codec *pCodec ) 00084 { 00085 ms_mapCodecs.erase(pCodec->getType()); 00086 } 00087 00089 static CodecIterator getCodecIterator(void) 00090 { 00091 return CodecIterator(ms_mapCodecs.begin(), ms_mapCodecs.end()); 00092 } 00093 00095 static StringVector getExtensions(void); 00096 00098 static Codec* getCodec(const String& extension); 00099 00106 static Codec* getCodec(char *magicNumberPtr, size_t maxbytes); 00107 00111 virtual DataStreamPtr code(MemoryDataStreamPtr& input, CodecDataPtr& pData) const = 0; 00119 virtual void codeToFile(MemoryDataStreamPtr& input, const String& outFileName, CodecDataPtr& pData) const = 0; 00120 00122 typedef std::pair<MemoryDataStreamPtr, CodecDataPtr> DecodeResult; 00128 virtual DecodeResult decode(DataStreamPtr& input) const = 0; 00129 00132 virtual String getType() const = 0; 00133 00136 virtual String getDataType() const = 0; 00137 00144 virtual bool magicNumberMatch(const char *magicNumberPtr, size_t maxbytes) const 00145 { return !magicNumberToFileExt(magicNumberPtr, maxbytes).empty(); } 00153 virtual String magicNumberToFileExt(const char *magicNumberPtr, size_t maxbytes) const = 0; 00154 }; 00155 00156 } // namespace 00157 00158 #endif
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Last modified Sun Sep 27 22:02:22 2009