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#ifndef _FRAMEBUFFER_H

#define _FRAMEBUFFER_H


#include <vector>

#include <array>


#include "texture.h"


struct Framebuffer

{

    Framebuffer( ) = default;


    GLuint create( const int width, const int height );

    void release( );


    int width( ) const;

    int height( ) const;


    void clear_color( const Color& value );

    void clear_depth( const float value );

    void clear_position( const Point& value );

    void clear_texcoord( const vec2& value );

    void clear_normal( const Vector& value );

    void clear_material( const unsigned value );


    void bind( const GLuint program, const bool store_color, const bool store_depth, const bool store_position, const bool store_texcoord, const bool store_normal, const bool store_material );


    void unbind( const int width, const int height );


    void unbind_textures( );


    void use_color_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );

    void use_depth_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );

    void use_position_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );

    void use_texcoord_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );

    void use_normal_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );

    void use_material_texture( const GLuint program, const char *uniform, const int unit, const GLuint sampler= 0 );


    void blit_depth( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );

    void blit_color( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );

    void blit_position( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );

    void blit_texcoord( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );

    void blit_normal( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );

    //~ void blit_material( const int dstX0, const int dstY0, const int dstX1, const int dstY1 );


protected:

    bool status( );


    std::vector<GLenum> m_draw_buffers;

    std::vector<GLuint> m_color_textures;


    std::vector< std::array<unsigned,4> > m_clear_colors;

    std::vector<int> m_color_units;

    float m_clear_depth;

    int m_depth_unit;


    GLuint m_depth_texture;

    GLuint m_fbo;

    int m_width;

    int m_height;

};


#endif

Color
representation d'une couleur (rgba) transparente ou opaque.
Definition color.h:14

Framebuffer::release
void release()
destruction.
Definition framebuffer.cpp:33

Framebuffer::height
int height() const
renvoie la hauteur du framebuffer.
Definition framebuffer.cpp:45

Framebuffer::clear_texcoord
void clear_texcoord(const vec2 &value)
texcoord par defaut.
Definition framebuffer.cpp:333

Framebuffer::clear_position
void clear_position(const Point &value)
position par defaut.
Definition framebuffer.cpp:324

Framebuffer::clear_material
void clear_material(const unsigned value)
indice de matiere par defaut.
Definition framebuffer.cpp:351

Framebuffer::width
int width() const
renvoie la largeur du framebuffer.
Definition framebuffer.cpp:40

Framebuffer::unbind
void unbind(const int width, const int height)
desactive le framebuffer, selection du framebuffer par defaut associe a la fenetre.
Definition framebuffer.cpp:276

Framebuffer::create
GLuint create(const int width, const int height)
creation du framebuffer
Definition framebuffer.cpp:13

Framebuffer::clear_color
void clear_color(const Color &value)
couleur par defaut.
Definition framebuffer.cpp:315

Framebuffer::clear_depth
void clear_depth(const float value)
profondeur par defaut.
Definition framebuffer.cpp:307

Framebuffer::unbind_textures
void unbind_textures()
nettoyage, desactive les textures utilisees par les autres shaders, cf use_color_texture(),...
Definition framebuffer.cpp:283

Framebuffer::bind
void bind(const GLuint program, const bool store_color, const bool store_depth, const bool store_position, const bool store_texcoord, const bool store_normal, const bool store_material)
selection du framebuffer, stocker les sorties du fragment shader. les textures sont initialisees avec...
Definition framebuffer.cpp:51

Framebuffer::clear_normal
void clear_normal(const Vector &value)
normale par defaut.
Definition framebuffer.cpp:342

Point
representation d'un point 3d.
Definition vec.h:21

Vector
representation d'un vecteur 3d.
Definition vec.h:67

vec2
vecteur generique, utilitaire.
Definition vec.h:152

texture.h