OpenWalnut  1.4.0
WGEShaderVersionPreprocessor.h
00001 //---------------------------------------------------------------------------
00002 //
00003 // Project: OpenWalnut ( http://www.openwalnut.org )
00004 //
00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS
00006 // For more information see http://www.openwalnut.org/copying
00007 //
00008 // This file is part of OpenWalnut.
00009 //
00010 // OpenWalnut is free software: you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as published by
00012 // the Free Software Foundation, either version 3 of the License, or
00013 // (at your option) any later version.
00014 //
00015 // OpenWalnut is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 // GNU Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public License
00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>.
00022 //
00023 //---------------------------------------------------------------------------
00024 
00025 #ifndef WGESHADERVERSIONPREPROCESSOR_H
00026 #define WGESHADERVERSIONPREPROCESSOR_H
00027 
00028 #include <string>
00029 
00030 #include "WGEShaderPreprocessor.h"
00031 
00032 
00033 
00034 /**
00035  * This preprocessor removes the version-statement from the code and puts it to the beginning of the code. This is requires for some GLSL
00036  * compiler.
00037  */
00038 class WGEShaderVersionPreprocessor: public WGEShaderPreprocessor
00039 {
00040 public:
00041     /**
00042      * Default constructor.
00043      */
00044     WGEShaderVersionPreprocessor();
00045 
00046     /**
00047      * Destructor.
00048      */
00049     virtual ~WGEShaderVersionPreprocessor();
00050 
00051     /**
00052      * Process the whole code. It is not allowed to modify some internal state in this function because it might be called by several shaders.
00053      *
00054      * \param code the code to process
00055      * \param file the filename of the shader currently processed. Should be used for debugging output.
00056      *
00057      * \return the resulting new code
00058      */
00059     virtual std::string process( const std::string& file, const std::string& code ) const;
00060 
00061 protected:
00062 private:
00063 };
00064 
00065 #endif  // WGESHADERVERSIONPREPROCESSOR_H
00066