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 00049 OSG_BEGIN_NAMESPACE 00050 00055 class OSG_SYSTEMLIB_DLLMAPPING TGAImageFileType : public ImageFileType 00056 { 00057 /*========================== PUBLIC =================================*/ 00058 public: 00059 00060 /*---------------------------------------------------------------------*/ 00064 virtual ~TGAImageFileType (void); 00065 00067 /*---------------------------------------------------------------------*/ 00071 static TGAImageFileType & the (void); 00072 00074 /*---------------------------------------------------------------------*/ 00078 virtual bool read (ImagePtr &image, const Char8 *fileName); 00079 00080 virtual bool write (const ImagePtr &image, const Char8 *fileName); 00081 00084 /*========================= PROTECTED ===============================*/ 00085 protected: 00086 00087 /*---------------------------------------------------------------------*/ 00091 TGAImageFileType (const Char8 *mimeType, 00092 const Char8 *suffixArray[], UInt16 suffixByteCount ); 00093 00095 /*---------------------------------------------------------------------*/ 00099 TGAImageFileType (const TGAImageFileType &obj); 00100 00103 /*========================== PRIVATE ================================*/ 00104 private: 00105 00106 // header struct 00107 00108 typedef struct 00109 { 00110 UInt8 idLength; 00111 UInt8 colorMapType; 00112 UInt8 imageType; 00113 UInt16 cmapFirst; 00114 UInt16 cmapLength; 00115 UInt8 cmapEntrySize; 00116 UInt16 xOrigin; 00117 UInt16 yOrigin; 00118 UInt16 width; 00119 UInt16 height; 00120 UInt8 depth; 00121 UInt8 descriptor; 00122 } 00123 TGAHeader; 00124 00125 void readHeader(std::istream &in, TGAHeader &header); 00126 00127 bool readCompressedImageData(std::istream &in, ImagePtr &image); 00128 00129 typedef ImageFileType Inherited; 00130 00131 static TGAImageFileType _the; 00132 00133 }; 00134 00135 typedef TGAImageFileType* TGAImageFileTypeP; 00136 00137 OSG_END_NAMESPACE 00138 00139 #endif // OSGTGAIMAGEFILETYPE_CLASS_DECLARATION
1.4.3