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#ifndef _SHADER_H_
#define _SHADER_H_
#include <iostream>
#include <string>
#define GL_GLEXT_PROTOTYPES
#ifndef __APPLE__
#include <GL/gl.h>
#include <GL/glu.h>
#else
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#endif
class GLBaseShader {
friend class GLShaderProgram;
protected:
void shader_source(const char *filename);
void shader_source(std::string& filename);
unsigned int shader;
public:
GLBaseShader(GLenum);
~GLBaseShader();
};
class GLVertexShader : public GLBaseShader {
public:
GLVertexShader() : GLBaseShader(GL_VERTEX_SHADER) {};
GLVertexShader(const char *s) : GLBaseShader(GL_VERTEX_SHADER) { shader_source(s); };
GLVertexShader(std::string& s) : GLBaseShader(GL_VERTEX_SHADER) { shader_source(s); };
};
class GLFragmentShader : public GLBaseShader {
public:
GLFragmentShader() : GLBaseShader(GL_FRAGMENT_SHADER) {};
GLFragmentShader(const char *s) : GLBaseShader(GL_FRAGMENT_SHADER) { shader_source(s); };
GLFragmentShader(std::string& s) : GLBaseShader(GL_FRAGMENT_SHADER) { shader_source(s); };
};
class GLShaderProgram {
protected:
unsigned int program;
public:
GLShaderProgram();
~GLShaderProgram();
void attach(GLBaseShader&);
void detach(GLBaseShader&);
void link();
void use();
};
#endif
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