Shader.h

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//
//  Shader.h
//  flowviz
//
//  Created by Johann Götz on 01.05.15.
//  Copyright (c) 2015 Johann Götz. All rights reserved.
//

#ifndef __flowviz__Shader__
#define __flowviz__Shader__

#include <stdio.h>
#include <OpenGL/gl3.h>
#include <OpenGL/OpenGL.h>

#include "glm.hpp"
#include "type_ptr.hpp"

#include "ISceneGraphPart.h"
#include "SceneContext.h"

namespace render {
    
    class Uniform
    {
    private:
        GLint m_uniformLocation;                    
    public:
        Uniform(void);
        Uniform(GLint uniformLocation);
        ~Uniform(void);
        
        void set1i(const int);
        void set1f(const float);
        void set2f(const float, const float);
        void set3fv(const glm::vec3*, int num = 1);
        void set4fv(const glm::vec4*, int num = 1);
        void set3x3fv(const glm::mat3*, int num = 1);
        void set3x3fv(const glm::mat4*, int num = 1);
        void set4x4fv(const glm::mat4*, int num = 1);
    };

    
    class Shader : public ISceneGraphPart
    {
    private:
        GLuint m_program;
        
    public:
        Shader() : m_program(0) { }
        //Shader(const char *vertexShaderFilename, const char *pixelShaderFilename);
        virtual ~Shader(void);
        
        bool init(const char *vertexShaderFilename, const char* pixelShaderFilename);
        
        void uninit(void);
        
        void bindAttributeLocations();
        
        //void bindFullAttributeLocations();
        //void bindFontAttributeLocations();
        //void bindGuiAttributeLocations();
        
        void use(void);
        
        Uniform getUniform(const char* uniformName) { return Uniform(glGetUniformLocation(m_program, uniformName)); }
        
        virtual void render(SceneContext *context);
    };
    
}

#endif /* defined(__flowviz__Shader__) */