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A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlCore/plugins/ioDAT.cpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #include "ioDAT.hpp"
    00033 #include <vlCore/LoadWriterManager.hpp>
    00034 #include <vlCore/VisualizationLibrary.hpp>
    00035 #include <vlCore/VisualizationLibrary.hpp>
    00036 #include <vlCore/FileSystem.hpp>
    00037 #include <vlCore/VirtualFile.hpp>
    00038 #include <vlCore/Image.hpp>
    00039 #include <vlCore/TextStream.hpp>
    00040 #include <stdio.h>
    00041
    00042 using namespace vl;
    00043
    00044 #include <vlCore/ImageTools.hpp>
    00045
    00046 //-----------------------------------------------------------------------------
    00047 ref<Image> vl::loadDAT( const String& path )
    00048 {
    00049   ref<VirtualFile> file = defFileSystem()->locateFile(path);
    00050   if ( !file )
    00051   {
    00052     Log::error( Say("File '%s' not found.\n") << path );
    00053     return NULL;
    00054   }
    00055
    00056   return loadDAT(file.get());
    00057 }
    00058 //-----------------------------------------------------------------------------
    00059 ref<Image> vl::loadDAT(VirtualFile* file)
    00060 {
    00061   if (!file->open(OM_ReadOnly))
    00062   {
    00063     Log::error( Say("loadDAT: could not find DAT file '%s'.\n") << file->path() );
    00064     return NULL;
    00065   }
    00066
    00067   #define BUFFER_SIZE 1024
    00068
    00069   ref<TextStream> stream = new TextStream(file);
    00070   std::string line;
    00071   char buffer[BUFFER_SIZE ];
    00072   char filename[BUFFER_SIZE ];
    00073   char typ[BUFFER_SIZE ];
    00074   char fmt[BUFFER_SIZE ];
    00075   float a=0,b=0,c=0;
    00076   int width=0, height=0, depth=0, bytealign=1;
    00077   EImageFormat format;
    00078   EImageType type;
    00079
    00080   // safe way, get a line first then sscanf the string
    00081   stream->readLine(line);
    00082   if ( sscanf(line.c_str(), "%s %s", buffer, filename) != 2 )
    00083     return NULL;
    00084   // make sure it is zero terminated
    00085   filename[BUFFER_SIZE-1] = 0;
    00086   stream->readLine(line);
    00087   if ( sscanf(line.c_str(), "%s %d %d %d", buffer, &width, &height, &depth) != 4 )
    00088     return NULL;
    00089   stream->readLine(line);
    00090   if ( sscanf(line.c_str(), "%s %f %f %f", buffer, &a,&b,&c) != 4 )
    00091     return NULL;
    00092   stream->readLine(line);
    00093   if ( sscanf(line.c_str(), "%s %s", buffer, typ) != 2 )
    00094     return NULL;
    00095   // make sure it is zero terminated
    00096   typ[BUFFER_SIZE-1] = 0;
    00097   stream->readLine(line);
    00098   if ( sscanf(line.c_str(), "%s %s", buffer, fmt) != 2 )
    00099     return NULL;
    00100   // make sure it is zero terminated
    00101   fmt[BUFFER_SIZE-1] = 0;
    00102   file->close();
    00103
    00104   // strip quotes
    00105   int len = strlen(filename);
    00106   if (len > 2)
    00107   {
    00108     if (filename[0] == '\'' || filename[0] == '"')
    00109       memmove(filename, filename + 1, len);
    00110     len = (int)strlen(filename);
    00111     if (filename[len-1] == '\'' || filename[len-1] == '"')
    00112       filename[len-1] = 0;
    00113   }
    00114
    00115   // extract path
    00116   String raw_file = file->path().extractPath() + filename;
    00117
    00118   if (String(typ) == "UCHAR")
    00119     type = IT_UNSIGNED_BYTE;
    00120   else
    00121   {
    00122     Log::error( Say("loadDAT('%s'): type '%s' not supported.\n") << file->path() << typ );
    00123     return NULL;
    00124   }
    00125
    00126   if (String(fmt) == "LUMINANCE")
    00127     format = IF_LUMINANCE;
    00128   else
    00129   if (String(fmt) == "LUMINANCE_ALPHA")
    00130     format = IF_LUMINANCE_ALPHA;
    00131   else
    00132   if (String(fmt) == "RGB")
    00133     format = IF_RGB;
    00134   else
    00135   if (String(fmt) == "RGBA")
    00136     format = IF_RGBA;
    00137   else
    00138   {
    00139     Log::error( Say("loadDAT('%s'): format '%s' not supported.\n") << file->path() << fmt );
    00140     return NULL;
    00141   }
    00142
    00143   ref<VirtualFile> rawf = defFileSystem()->locateFile(raw_file);
    00144   if (rawf)
    00145   {
    00146     return loadRAW( rawf.get(), -1, width, height, depth, bytealign, format, type );
    00147   }
    00148   else
    00149   {
    00150     Log::error( Say("loadDAT('%s'): could not find RAW file '%s'.\n") << file->path() << raw_file );
    00151     return NULL;
    00152   }
    00153 }
    00154 //-----------------------------------------------------------------------------
    00155 bool vl::isDAT(VirtualFile* file)
    00156 {
    00157   #define BUFFER_SIZE 1024
    00158
    00159   if (!file->open(OM_ReadOnly))
    00160     return false;
    00161
    00162   ref<TextStream> stream = new TextStream(file);
    00163   std::string line;
    00164   char buffer[BUFFER_SIZE];
    00165   char filename[BUFFER_SIZE];
    00166   char typ[BUFFER_SIZE];
    00167   char fmt[BUFFER_SIZE];
    00168   float a=0,b=0,c=0;
    00169   int width=0, height=0, depth=0;
    00170   EImageFormat format;
    00171   EImageType type;
    00172
    00173   // safe way, get a line first then sscanf the string
    00174   stream->readLine(line);
    00175   if ( sscanf(line.c_str(), "%s %s", buffer, filename) != 2 )
    00176     return false;
    00177   // make sure it is zero terminated
    00178   filename[BUFFER_SIZE-1] = 0;
    00179   stream->readLine(line);
    00180   if ( sscanf(line.c_str(), "%s %d %d %d", buffer, &width, &height, &depth) != 4 )
    00181     return false;
    00182   stream->readLine(line);
    00183   if ( sscanf(line.c_str(), "%s %f %f %f", buffer, &a,&b,&c) != 4 )
    00184     return false;
    00185   stream->readLine(line);
    00186   if ( sscanf(line.c_str(), "%s %s", buffer, typ) != 2 )
    00187     return false;
    00188   // make sure it is zero terminated
    00189   typ[BUFFER_SIZE-1] = 0;
    00190   stream->readLine(line);
    00191   if ( sscanf(line.c_str(), "%s %s", buffer, fmt) != 2 )
    00192     return false;
    00193   // make sure it is zero terminated
    00194   fmt[BUFFER_SIZE-1] = 0;
    00195   file->close();
    00196
    00197   // strip quotes
    00198   int len = strlen(filename);
    00199   if (len > 2)
    00200   {
    00201     if (filename[0] == '\'' || filename[0] == '"')
    00202       memmove(filename,filename + 1, len);
    00203     len = (int)strlen(filename);
    00204     if (filename[len-1] == '\'' || filename[len-1] == '"')
    00205       filename[len-1] = 0;
    00206   }
    00207
    00208   // extract path
    00209   String raw_file = file->path().extractPath() + filename;
    00210
    00211   // check type
    00212   if (String(typ) == "UCHAR")
    00213     type = IT_UNSIGNED_BYTE;
    00214   else
    00215     return false;
    00216
    00217   if (String(fmt) == "LUMINANCE")
    00218     format = IF_LUMINANCE;
    00219   else
    00220   if (String(fmt) == "LUMINANCE_ALPHA")
    00221     format = IF_LUMINANCE_ALPHA;
    00222   else
    00223   if (String(fmt) == "RGB")
    00224     format = IF_RGB;
    00225   else
    00226   if (String(fmt) == "RGBA")
    00227     format = IF_RGBA;
    00228   else
    00229     return false;
    00230
    00231   if (defFileSystem()->locateFile(raw_file))
    00232     return true;
    00233   else
    00234     return false;
    00235 }
    00236 //-----------------------------------------------------------------------------

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:30.
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