FrameBuffer.h

#ifndef NTA_FRAMEBUFFER_H_INCLUDED
#define NTA_FRAMEBUFFER_H_INCLUDED
 
#include <vector>
 
#include <GL/glew.h>
 
namespace nta {
    class FrameBuffer {
    private:
        GLuint m_fbo;
        std::vector<GLuint> m_texs;
        std::vector<GLuint> m_rbos;
    public:
        FrameBuffer() : m_fbo(0) {}
        ~FrameBuffer() { destroy(); }
 
        void init();
        void use() const;
        void set_texture(GLuint idx = 0) const;
        void unuse() const;
 
        GLuint add_texture(GLuint width, GLuint height, 
                           GLint min_filt = GL_LINEAR, GLint mag_filt = GL_LINEAR,
                           bool rgba = true);
        GLuint get_tex(GLuint idx = 0) const;
        GLuint get_width(GLuint idx = 0) const;
        GLuint get_height(GLuint idx = 0) const;
        GLuint num_texs() const { return m_texs.size(); }
 
        void destroy();
    };
}
 
#endif // NTA_FRAMEBUFFER_H_INCLUDED