00001 /*---------------------------------------------------------------------------*\ 00002 * OpenSG * 00003 * * 00004 * * 00005 * Copyright (C) 2000-2002 by the OpenSG Forum * 00006 * * 00007 * www.opensg.org * 00008 * * 00009 * contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de * 00010 * * 00011 \*---------------------------------------------------------------------------*/ 00012 /*---------------------------------------------------------------------------*\ 00013 * License * 00014 * * 00015 * This library is free software; you can redistribute it and/or modify it * 00016 * under the terms of the GNU Library General Public License as published * 00017 * by the Free Software Foundation, version 2. * 00018 * * 00019 * This library is distributed in the hope that it will be useful, but * 00020 * WITHOUT ANY WARRANTY; without even the implied warranty of * 00021 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00022 * Library General Public License for more details. * 00023 * * 00024 * You should have received a copy of the GNU Library General Public * 00025 * License along with this library; if not, write to the Free Software * 00026 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * 00027 * * 00028 \*---------------------------------------------------------------------------*/ 00029 /*---------------------------------------------------------------------------*\ 00030 * Changes * 00031 * * 00032 * * 00033 * * 00034 * * 00035 * * 00036 * * 00037 \*---------------------------------------------------------------------------*/ 00038 00039 #ifndef OSGTGAIMAGEFILETYPE_CLASS_DECLARATION 00040 #define OSGTGAIMAGEFILETYPE_CLASS_DECLARATION 00041 #ifdef __sgi 00042 #pragma once 00043 #endif 00044 00045 #include <OSGSystemDef.h> 00046 #include <OSGBaseTypes.h> 00047 #include <OSGImageFileType.h> 00048 #include <iosfwd> 00049 00050 OSG_BEGIN_NAMESPACE 00051 00056 class OSG_SYSTEMLIB_DLLMAPPING TGAImageFileType : public ImageFileType 00057 { 00058 /*========================== PUBLIC =================================*/ 00059 public: 00060 00061 /*---------------------------------------------------------------------*/ 00065 virtual ~TGAImageFileType (void); 00066 00068 /*---------------------------------------------------------------------*/ 00072 static TGAImageFileType & the (void); 00073 00075 /*---------------------------------------------------------------------*/ 00079 virtual bool read (ImagePtr &image, std::istream &is, const std::string &mimetype); 00080 00083 /*========================= PROTECTED ===============================*/ 00084 protected: 00085 00086 /*---------------------------------------------------------------------*/ 00090 TGAImageFileType (const Char8 *mimeType, 00091 const Char8 *suffixArray[], UInt16 suffixByteCount ); 00092 00095 /*========================== PRIVATE ================================*/ 00096 private: 00097 00098 /*---------------------------------------------------------------------*/ 00102 TGAImageFileType (const TGAImageFileType &obj); 00103 00105 /*---------------------------------------------------------------------*/ 00109 const TGAImageFileType & operator= (const TGAImageFileType &obj); 00110 00113 // header struct 00114 00115 typedef struct 00116 { 00117 UInt8 idLength; 00118 UInt8 colorMapType; 00119 UInt8 imageType; 00120 UInt16 cmapFirst; 00121 UInt16 cmapLength; 00122 UInt8 cmapEntrySize; 00123 UInt16 xOrigin; 00124 UInt16 yOrigin; 00125 UInt16 width; 00126 UInt16 height; 00127 UInt8 depth; 00128 UInt8 descriptor; 00129 } 00130 TGAHeader; 00131 00132 bool readHeader(std::istream &in, TGAHeader &header); 00133 00134 bool readCompressedImageData(std::istream &in, ImagePtr &image); 00135 00136 static TGAImageFileType _the; 00137 00138 }; 00139 00140 typedef TGAImageFileType* TGAImageFileTypeP; 00141 00142 OSG_END_NAMESPACE 00143 00144 #endif // OSGTGAIMAGEFILETYPE_CLASS_DECLARATION
1.5.5