nuclear@0: #ifndef RTARG_H_
nuclear@0: #define RTARG_H_
nuclear@0: 
nuclear@0: #include "vmath/vmath.h"
nuclear@0: #include "opengl.h"
nuclear@0: 
nuclear@0: class Texture;
nuclear@0: 
nuclear@0: class RenderTarget {
nuclear@0: private:
nuclear@0: 	int width, height;
nuclear@0: 
nuclear@0: 	unsigned int fbo;
nuclear@0: 	Texture *color_tex;
nuclear@0: 	unsigned int tex_targ;
nuclear@0: 	int tex_face;
nuclear@0: 	unsigned int rbuf_zstencil;
nuclear@0: 
nuclear@0: public:
nuclear@0: 	RenderTarget();
nuclear@0: 	~RenderTarget();
nuclear@0: 
nuclear@0: 	bool create(unsigned int fmt = GL_RGBA);
nuclear@0: 	bool create(int width, int height, unsigned int fmt = GL_RGBA);
nuclear@0: 	bool create(Texture *tex, int face = 0);
nuclear@0: 
nuclear@0: 	void cleanup();
nuclear@0: 
nuclear@0: 	bool resize(int width, int height);
nuclear@0: 
nuclear@0: 	int get_width() const;
nuclear@0: 	int get_height() const;
nuclear@0: 
nuclear@0: 	Texture *get_texture() const;
nuclear@0: 
nuclear@0: 	/** calculates a texture matrix to map the full texture space
nuclear@0: 	 * onto the part of the texture occupied by the render target
nuclear@0: 	 */
nuclear@0: 	Matrix4x4 get_texture_matrix() const;
nuclear@0: 
nuclear@0: 	bool check() const;
nuclear@0: 	void bind() const;
nuclear@0: };
nuclear@0: 
nuclear@0: void set_render_target(const RenderTarget *rtarg);
nuclear@0: 
nuclear@0: int next_pow2(int x);
nuclear@0: 
nuclear@0: #endif	// RTARG_H_