ehofman
32e2cd9f06
This is the low level shader class for Simgear. It's the code from Roman Grigoriev with a few adaptations.
91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/* Shader
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*
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* Copyright (C) 2003-2005, Alexander Zaprjagaev <frustum@frustum.org>
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* Roman Grigoriev <grigoriev@gosniias.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __SHADER_H__
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#define __SHADER_H__
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#include <simgear/compiler.h>
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#include <simgear/screen/extensions.hxx>
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#include <vector>
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#include <map>
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#include STL_STRING
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SG_USING_STD(map);
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SG_USING_STD(vector);
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SG_USING_STD(string);
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class Shader {
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public:
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Shader(const char *name,const char *vertex = NULL,const char *fragment = NULL);
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~Shader();
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void bindNames(const char *name,...);
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void enable();
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void disable();
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void bind();
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void bind(const float *value,...);
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void setLocalParameter(int location,const float *value);
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void setEnvParameter(int location,const float *value);
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void setParameter(const char *name,const float *value);
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void setParameters(const float *value,...);
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static void Init(void);
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inline static bool is_VP_supported(void) {return VP_supported;}
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inline static bool is_FP_supported(void) {return FP_supported;}
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inline static bool is_GLSL_supported(void) {return GLSL_supported;}
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inline static bool is_NVFP_supported(void) {return NVFP_supported;}
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inline static int get_nb_texture_units(void) {return nb_texture_unit;}
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protected:
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struct Parameter {
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GLuint location;
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int length;
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};
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const char *get_error(char *data,int pos);
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const char *get_glsl_error();
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void getParameter(const char *name,Parameter *parameter);
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GLhandleARB program;
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GLuint vertex_target;
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GLuint vertex_id;
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GLuint fragment_target;
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GLuint fragment_id;
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std::vector<Parameter> parameters;
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typedef map<string, struct Parameter> arb_parameter_list;
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arb_parameter_list arb_parameters;
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static bool VP_supported, FP_supported, GLSL_supported, NVFP_supported;
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static GLint nb_texture_unit;
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};
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#endif /* __SHADER_H__ */
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