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OgreTGACodec.h

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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004 (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://ogre.sourceforge.net/
00006 
00007 Copyright © 2000-2002 The OGRE Team
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 */
00025 #ifndef _TGACodec_H__
00026 #define _TGACodec_H__
00027 
00028 #include "OgreImageCodec.h"
00029 #include "OgreSDDataChunk.h"
00030 
00031 namespace Ogre {
00032 
00035     class _OgreExport TGACodec : public ImageCodec
00036     {
00037     protected:
00038 
00039     // We're mapping onto raw file data, so ensure members are packed with no gaps 
00040     //    by using uchars all the way (more portable than #pragma pack
00041     typedef struct {
00042         uchar id_length;
00043         uchar color_map_type;
00044         uchar image_type;
00045         uchar first_entry_index[2];
00046         uchar color_map_length[2];
00047         uchar color_map_entry_size;
00048         uchar x_origin[2];
00049         uchar y_origin[2];
00050         uchar image_width[2];
00051         uchar image_height[2];
00052         uchar pixel_depth;
00053         uchar image_descriptor;
00054     } TgaHeader;
00055 
00056     public:
00057         void code( const DataChunk& input, DataChunk* output, ... ) const;
00058         CodecData * decode( const DataChunk& input, DataChunk* output, ... ) const;
00059 
00060         String getType() const { return "tga"; }
00061     };
00062 
00063 }
00064 
00065 #endif

Copyright © 2002 by The OGRE Team