GLSLShaderSetup.h

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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.
//
//    Scorched3D 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 Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////

#if !defined(__INCLUDE_GLSLShaderSetuph_INCLUDE__)
#define __INCLUDE_GLSLShaderSetuph_INCLUDE__

#include <GLSL/GLSLShader.h>
#include <GLSL/GLSLProgram.h>

class GLSLShaderSetup
{
public:
        /// create shader setup of two shaders
        GLSLShaderSetup(
                const std::string &filename_vshader,
                const std::string &filename_fshader,
                const GLSLShader::defines_list& dl = GLSLShader::defines_list());
        ~GLSLShaderSetup();

        /// use this setup
        void use() const { prog_.use(); }

        /// use fixed function pipeline instead of particular setup
        static void use_fixed() { GLSLProgram::use_fixed(); }

        /// set up texture for a particular shader name
        void set_gl_texture(GLTexture &tex, const char *texname, unsigned texunitnr) const 
        {
                prog_.set_gl_texture(tex, texname, texunitnr);
        }
        void set_gl_texture(GLShadowFrameBuffer &tex, const char *texname, unsigned texunitnr) const
        {
                prog_.set_gl_texture(tex, texname, texunitnr);
        }
        void set_gl_texture_unit(const char *texname, unsigned texunitnr) const
        {
                prog_.set_gl_texture_unit(texname, texunitnr);
        }

        /// set uniform variable
        void set_uniform(const char *name, const Vector& value) const 
        {
                prog_.set_uniform(name, value);
        }
        void set_uniform(const char *name, const float value) const
        {
                prog_.set_uniform(name, value);
        }

        /// get vertex attribute index
        unsigned get_vertex_attrib_index(const char *name) const 
        {
                return prog_.get_vertex_attrib_index(name);
        }

protected:
        GLSLShader vs_, fs_;
        GLSLProgram prog_;

private:
        GLSLShaderSetup(const GLSLShaderSetup&);
        GLSLShaderSetup& operator= (const GLSLShaderSetup&);
};

#endif // __INCLUDE_GLSLShaderSetuph_INCLUDE__

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