X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=vrfileman;a=blobdiff_plain;f=src%2Frtarg.h;fp=src%2Frtarg.h;h=ed15ac36baff1e32ba96fba5245864a4ae036860;hp=0000000000000000000000000000000000000000;hb=7c59a70219aa7bcf80291f41903a9e6fc9b6e073;hpb=5e07bfd4d034dc3d974c8db008c6446e62838d39

diff --git a/src/rtarg.h b/src/rtarg.h
new file mode 100644
index 0000000..ed15ac3
--- /dev/null
+++ b/src/rtarg.h
@@ -0,0 +1,56 @@
+#ifndef RTARG_H_
+#define RTARG_H_
+
+#include "gmath/gmath.h"
+#include "opengl.h"
+
+class Texture;
+
+class RenderTarget {
+private:
+	int width, height;
+
+	unsigned int fbo;
+	Texture *color_tex;
+	unsigned int tex_targ;
+	int tex_face;
+	unsigned int rbuf_zstencil;
+
+	Mat4 tex_matrix;
+
+	void bind() const;
+
+public:
+	static unsigned int default_fbo;	// 0 on most platforms, GLKit fbo on iOS.
+
+	RenderTarget();
+	~RenderTarget();
+
+	bool create(unsigned int fmt = GL_RGBA);
+	bool create(int width, int height, unsigned int fmt = GL_RGBA);
+	bool create(Texture *tex, int face = 0);
+
+	void cleanup();
+
+	bool resize(int width, int height);
+
+	int get_width() const;
+	int get_height() const;
+
+	Texture *get_texture() const;
+
+	/** calculates a texture matrix to map the full texture space
+	 * onto the part of the texture occupied by the render target
+	 */
+	const Mat4 &get_texture_matrix() const;
+
+	bool check() const;
+
+	friend void set_render_target(const RenderTarget *rtarg);
+};
+
+void set_render_target(const RenderTarget *rtarg);
+
+int next_pow2(int x);
+
+#endif	// RTARG_H_