gl_Cg_shader.h

Go to the documentation of this file.

/***************************************************************************
 *   Copyright (C) 2008 by Kutumov Alexey                                  *
 *   ru.pixel@gmail.com                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU 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.             *
 ***************************************************************************/

#ifndef __gl_Cg_shader__header__
#define __gl_Cg_shader__header__

#include "gpucalc/shader.h"

#include <Cg/cgGL.h>

namespace gpucalc
{

 const char _GLCgShaderClassName [] = "GLCgShader";


 class _GpuCalcPrivate GLCgShader: public Shader
 {


  OBJ_DISABLE_COPY(GLCgShader)


  friend class GLCgShaderSystem;


  public:
   GLCgShader(const std::string & ShaderName, CGcontext CgContext, CGprofile CgProfile, ShaderSystem * system);


  ~GLCgShader();

  
  void setSource(const std::string & ShaderSource);


  std::string getSource() const
  {
   return mShaderSource;
  }


  void addUniform(Uniform * uniform);


  void removeUniform(Uniform * uniform);


  void compile(const std::string & Parameters = std::string());


  bool isCompiled() const
  {
   return mIsCompiled;
  }


  void validate();


  void preCompute();


  bool isDebugEnabled() const
  {
   return mIsDebug;
  }


  std::string getLanguageID() const
  {
   return "Cg";
  }


  private:


   CGcontext mCgContextID;


   CGprofile mCgFragmentProfileID;


   CGprogram mCgFragmentProgramID;


   bool mIsCompiled;


   bool mIsDebug;


   void setUniformVariable(Uniform * uniform);


   void setUniformSampler(Uniform * uniform);


   std::string mShaderSource;


   std::string mShaderCompilerParams;


   typedef std::list<Uniform *> UniformVector;
   UniformVector mUniformVector;
 };
}

#endif