source: downloads/ogre/OgreMain/src/OgreILCodecs.cpp @ 45

/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2006 Torus Knot Software Ltd
Also see acknowledgements in Readme.html

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.

You may alternatively use this source under the terms of a specific version of
the OGRE Unrestricted License provided you have obtained such a license from
Torus Knot Software Ltd.
-----------------------------------------------------------------------------
*/
#include <OgreStableHeaders.h>

#include <OgreImage.h>
#include <OgreCodec.h>
#include <OgreException.h>
#include <OgreLogManager.h>
#include <OgreStringConverter.h>
#include "OgreILImageCodec.h"
#include "OgreILCodecs.h"

#include <IL/il.h>
#include <IL/ilu.h>

namespace Ogre {
    std::list<ILImageCodec*> ILCodecs::codeclist;

        // Return IL type for a certain extension
        ILenum ogreIlTypeFromExt(const String &ext)
        {
#ifdef IL_TGA
                if (ext=="tga" || ext=="vda" ||
                        ext=="icb" || ext=="vst")
                        return IL_TGA;
#endif
#ifdef IL_JPG
                if (ext=="jpg" || ext=="jpe" || ext=="jpeg")
                        return IL_JPG;
#endif
/*#ifdef IL_DDS
                if (ext=="dds")
                        return IL_DDS;
#endif*/
#ifdef IL_PNG
                if (ext=="png")
                        return IL_PNG;
#endif
#ifdef IL_BMP
                if (ext=="bmp" || ext=="dib")
                        return IL_BMP;
#endif
#ifdef IL_GIF
                if (ext=="gif")
                        return IL_GIF;
#endif
#ifdef IL_CUT
                if (ext=="cut")
                        return IL_CUT;
#endif
#ifdef IL_HDR
                if (ext=="hdr")
                        return IL_HDR;
#endif
#ifdef IL_ICO
                if (ext=="ico" || ext=="cur")
                        return IL_ICO;
#endif
#ifdef IL_JNG
                if (ext=="jng")
                        return IL_JNG;
#endif
#ifdef IL_LIF
                if (ext=="lif")
                        return IL_LIF;
#endif
#ifdef IL_MDL
                if (ext=="mdl")
                        return IL_MDL;
#endif
#ifdef IL_MNG
                if (ext=="mng" || ext=="jng")
                        return IL_MNG;
#endif
#ifdef IL_PCD
                if (ext=="pcd")
                        return IL_PCD;
#endif
#ifdef IL_PCX
                if (ext=="pcx")
                        return IL_PCX;
#endif
#ifdef IL_PIC
                if (ext=="pic")
                        return IL_PIC;
#endif
#ifdef IL_PIX
                if (ext=="pix")
                        return IL_PIX;
#endif
#ifdef IL_PNM
                if (ext=="pbm" || ext=="pgm" ||
                        ext=="pnm" || ext=="ppm")
                        return IL_PNM;
#endif
#ifdef IL_PSD
                if (ext=="psd" || ext=="pdd")
                        return IL_PSD;
#endif
#ifdef IL_PSP
                if (ext=="psp")
                        return IL_PSP;
#endif
#ifdef IL_PXR
                if (ext=="pxr")
                        return IL_PXR;
#endif
#ifdef IL_SGI
                if (ext=="sgi" || ext=="bw" ||
                        ext=="rgb" || ext=="rgba")
                        return IL_SGI;
#endif
#ifdef IL_TIF
                if (ext=="tif" || ext=="tiff")
                        return IL_TIF;
#endif
#ifdef IL_WAL
                if (ext=="wal")
                        return IL_WAL;
#endif
#ifdef IL_XPM
                if (ext=="xpm")
                        return IL_XPM;
#endif
        
                return IL_TYPE_UNKNOWN;
        }

        
    void ILCodecs::registerCodecs(void) {
                const char *il_version = ilGetString ( IL_VERSION_NUM );
                if( ilGetError() != IL_NO_ERROR )
                {
                        // IL defined the version number as IL_VERSION in older versions, so we have to scan for it
                        for(int ver=150; ver<170; ver++)
                        {
                                il_version = ilGetString ( ver ); 
                                if(ilGetError() == IL_NO_ERROR)
                                        break;
                                else
                                        il_version = "Unknown";
                        }
                }
                LogManager::getSingleton().logMessage(
         LML_NORMAL,
            "DevIL version: " + String(il_version));
        const char *il_extensions = ilGetString ( IL_LOAD_EXT );
                if( ilGetError() != IL_NO_ERROR )
                        il_extensions = "";
        
        std::stringstream ext;
        String str, all;
        ext << il_extensions;
        while(ext >> str)
        {
#if 0
                        String fileName = "dummy." + str;
                        // DevIL doesn't export this under windows -- how weird
                        int ilType = ilTypeFromext(const_cast<char*>(fileName.c_str()));
#endif
                        int ilType = ogreIlTypeFromExt(str);
            ILImageCodec *codec = new ILImageCodec(str, ilType);
            Codec::registerCodec(codec);
            codeclist.push_back(codec);
                        //all += str+String("(")+StringConverter::toString(ilType)+String(") ");
                        all += str+String(" ");
        }
                // Raw format, missing in image formats string
                ILImageCodec *cod = new ILImageCodec("raw", IL_RAW);
                Codec::registerCodec(cod);
                codeclist.push_back(cod);
                //all += String("raw")+"("+StringConverter::toString(IL_RAW)+String(") ");
                all += String("raw ");
                LogManager::getSingleton().logMessage(
         LML_NORMAL,
            "DevIL image formats: " + all);
    }

    void ILCodecs::deleteCodecs(void) {
        for(std::list<ILImageCodec*>::const_iterator i = codeclist.begin(); i != codeclist.end(); ++i)
        {
            Codec::unRegisterCodec(*i);   
            delete *i;
        }
        codeclist.clear();
    }

}