GLFramebuffer.h

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#pragma once
 
#include <vector>
 
#include "GLEnv.h"
 
#include "GLTexture2D.h"
#include "GLTexture3D.h"
#include "GLDepthBuffer.h"
#include "GLDepthTexture.h"

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

  const GLuint getId() const;
 
  // ===== Bind helpers: depth texture + color 2D textures =====
  void bind(const GLDepthTexture& d);
  void bind(const GLTexture2D& t, const GLDepthTexture& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLDepthTexture& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2, const GLDepthTexture& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2, const GLTexture2D& t3, const GLDepthTexture& d);
 
  // ===== Bind helpers: depth renderbuffer + color 2D textures =====
  void bind(const GLTexture2D& t, const GLDepthBuffer& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLDepthBuffer& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2, const GLDepthBuffer& d);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2, const GLTexture2D& t3, const GLDepthBuffer& d);
 
  // ===== Bind helpers: color-only 2D textures (no depth) =====
  void bind(const GLTexture2D& t);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2);
  void bind(const GLTexture2D& t0, const GLTexture2D& t1, const GLTexture2D& t2, const GLTexture2D& t3);
 
  // ===== Bind helpers: depth renderbuffer + 3D texture slices =====
  void bind(const GLTexture3D& t, size_t slice, const GLDepthBuffer& d);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1, const GLDepthBuffer& d);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1, const GLTexture3D& t2, size_t slice2,
            const GLDepthBuffer& d);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1, const GLTexture3D& t2, size_t slice2,
            const GLTexture3D& t3, size_t slice3, const GLDepthBuffer& d);
 
  // ===== Bind helpers: color-only 3D texture slices (no depth) =====
  void bind(const GLTexture3D& t, size_t slice);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1, const GLTexture3D& t2, size_t slice2);
  void bind(const GLTexture3D& t0, size_t slice0, const GLTexture3D& t1, size_t slice1, const GLTexture3D& t2, size_t slice2,
            const GLTexture3D& t3, size_t slice3);

  void unbind2D();
  void unbind3D();

  bool checkBinding() const;
 
private:
  GLuint id; 

  void setBuffers(size_t count, size_t width, size_t height);
};
 
// glFramebufferTexture3D