Framebuffer.h

#ifndef _FRAMEBUFFER_H_
#define _FRAMEBUFFER_H_

#include "include_opengl.h"

class FramebufferDescriptor
{
public:
    FramebufferDescriptor(int width, int height);

    int width, height;
    int depthFormat, depthInternalFormat;
    int numColorAttachments;
    int* colorFormat;
    int* colorInternalFormat;

    GLint textureWrap;

    GLint depthMinFilter, depthMagFilter;
    GLint depthType;

    GLint colorMinFilter, colorMagFilter;
    GLenum colorType;
};

class Framebuffer
{
public:
    Framebuffer();
    ~Framebuffer();

    bool init(const FramebufferDescriptor& descriptor);

    bool init(int width, int height, int depthFormat, int depthInternalFormat,
        int numColorAttachments, int* colorFormat, int* colorInternalFormat);

    bool init(int width, int height, int depthFormat, int depthInternalFormat,
        int colorFormat, int colorInternalFormat);

    void bind() const;
    void unbind() const;

    GLuint getDepthTextureHandle() const;
    GLuint getColorTextureHandle(int i=0) const;
    GLuint getHandle() const;
    void setViewport() const;

    int getWidth() const;
    int getHeight() const;

private:
    GLuint _framebufferHandle;

    int _depthFormat, _depthInternalFormat;
    GLuint _depthTextureHandle;

    int _numColorAttachments;
    int *_colorFormat, *_colorInternalFormat;
    GLuint *_colorTextureHandle;
    GLenum* _colorAttachments;

    int _width, _height;
    bool _initted;
};


#endif