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#ifndef _SOFTSHADEROOM_FRAMEBUFFER_H_
#define _SOFTSHADEROOM_FRAMEBUFFER_H_
#include "texture.h"
#include "depth.h"
#include "stencil.h"
/*frame buffer object*/
#define RENDER_TARGET_COUNT 6
/*
** OpenGL��fbo�������ҵ������renderbuffer����texture2d�������Ч��ֻ�ṩ
** 8��texture2d����color attachment��
** �����������Ȳ��Ի�ģ����ԣ���ôӦ�ð�Ӧ����Ȼ����ģ�建��
*/
typedef struct FrameBuffer{
Texture* render_textures[RENDER_TARGET_COUNT]; /*color attachments*/
float* depth_buffer; /*depth attachment*/
byte* stencil_buffer; /*stencil attachment*/
} FrameBuffer;
FrameBuffer* fbo_create();
void fbo_attachrendertexture(FrameBuffer* fb, uint attachment, Texture* rt);
/*depth buffer��stencil buffer�����0������Ļ������*/
void fbo_attachdepthbuffer(FrameBuffer* fb, float* depthbuffer);
void fbo_attachstencilbuffer(FrameBuffer* fb, byte* stencilbuffer);
void fbo_free(FrameBuffer* fb);
#endif
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