/*
 * fbo-ext.h --
 *
 *      Header file produced according to the OpenGL framebuffer object
 *      specification.  This file should have all the #defines and
 *      prototypes to use framebuffer objects (GL_EXT_framebuffer_object).
 */

#ifndef __FBO_EXT_H__
#define __FBO_EXT_H__

#define GL_FRAMEBUFFER_EXT                     0x8D40

#define GL_RENDERBUFFER_EXT                    0x8D41

#define GL_STENCIL_INDEX_EXT                   0x8D45
#define GL_STENCIL_INDEX1_EXT                  0x8D46
#define GL_STENCIL_INDEX4_EXT                  0x8D47
#define GL_STENCIL_INDEX8_EXT                  0x8D48
#define GL_STENCIL_INDEX16_EXT                 0x8D49

#define GL_RENDERBUFFER_WIDTH_EXT              0x8D42
#define GL_RENDERBUFFER_HEIGHT_EXT             0x8D43
#define GL_RENDERBUFFER_INTERNAL_FORMAT_EXT    0x8D44

#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT            0x8CD0
#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT            0x8CD1
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT          0x8CD2
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT  0x8CD3
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT     0x8CD4

#define GL_COLOR_ATTACHMENT0_EXT                0x8CE0
#define GL_COLOR_ATTACHMENT1_EXT                0x8CE1
#define GL_COLOR_ATTACHMENT2_EXT                0x8CE2
#define GL_COLOR_ATTACHMENT3_EXT                0x8CE3
#define GL_COLOR_ATTACHMENT4_EXT                0x8CE4
#define GL_COLOR_ATTACHMENT5_EXT                0x8CE5
#define GL_COLOR_ATTACHMENT6_EXT                0x8CE6
#define GL_COLOR_ATTACHMENT7_EXT                0x8CE7
#define GL_COLOR_ATTACHMENT8_EXT                0x8CE8
#define GL_COLOR_ATTACHMENT9_EXT                0x8CE9
#define GL_COLOR_ATTACHMENT10_EXT               0x8CEA
#define GL_COLOR_ATTACHMENT11_EXT               0x8CEB
#define GL_COLOR_ATTACHMENT12_EXT               0x8CEC
#define GL_COLOR_ATTACHMENT13_EXT               0x8CED
#define GL_COLOR_ATTACHMENT14_EXT               0x8CEE
#define GL_COLOR_ATTACHMENT15_EXT               0x8CEF
#define GL_DEPTH_ATTACHMENT_EXT                 0x8D00
#define GL_STENCIL_ATTACHMENT_EXT               0x8D20

#define GL_FRAMEBUFFER_COMPLETE_EXT                          0x8CD5
#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT             0x8CD6
#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT     0x8CD7
#define GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT   0x8CD8
#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT             0x8CD9
#define GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT                0x8CDA
#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT            0x8CDB
#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT            0x8CDC
#define GL_FRAMEBUFFER_UNSUPPORTED_EXT                       0x8CDD
#define GL_FRAMEBUFFER_STATUS_ERROR_EXT                      0x8CDE

#define GL_FRAMEBUFFER_BINDING_EXT             0x8CA6
#define GL_RENDERBUFFER_BINDING_EXT            0x8CA7
#define GL_MAX_COLOR_ATTACHMENTS_EXT           0x8CDF
#define GL_MAX_RENDERBUFFER_SIZE_EXT           0x84E8

#define GL_INVALID_FRAMEBUFFER_OPERATION_EXT   0x0506

/*
 * I'm just attempting to mimic the NV glext.h here.
 */
#ifdef GL_GLEXT_PROTOTYPES
GLboolean APIENTRY glIsRenderbufferEXT(GLuint renderbuffer);
void APIENTRY glBindRenderbufferEXT(GLenum target, GLuint renderbuffer);
void APIENTRY glDeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers);
void APIENTRY glGenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers);

void APIENTRY glRenderbufferStorageEXT(GLenum target, GLenum internalformat,
                                       GLsizei width, GLsizei height);

void APIENTRY glGetRenderbufferParameterivEXT(GLenum target,
                                              GLenum pname, GLint* params);

GLboolean APIENTRY glIsFramebufferEXT(GLuint framebuffer);
void APIENTRY glBindFramebufferEXT(GLenum target, GLuint framebuffer);
void APIENTRY glDeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers);
void APIENTRY glGenFramebuffersEXT(GLsizei n, GLuint *framebuffers);

GLenum APIENTRY glCheckFramebufferStatusEXT(GLenum target);

void APIENTRY glFramebufferTexture1DEXT(GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level);
void APIENTRY glFramebufferTexture2DEXT(GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level);
void APIENTRY glFramebufferTexture3DEXT(GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level, GLint zoffset);

void APIENTRY glFramebufferRenderbufferEXT(GLenum target, GLenum attachment,
                                           GLenum renderbuffertarget,
                                           GLuint renderbuffer);

void APIENTRY glGetFramebufferAttachmentParameterivEXT(GLenum target,
                                                       GLenum attachment,
                                                       GLenum pname,
                                                       GLint *params);

void APIENTRY glGenerateMipmapEXT(GLenum target);
#endif
typedef GLboolean (APIENTRY * PFNGLISRENDERBUFFEREXTPROC) (GLuint renderbuffer);
typedef void (APIENTRY * PFNGLBINDRENDERBUFFEREXTPROC) (GLenum target, GLuint renderbuffer);
typedef void (APIENTRY * PFNGLDELETERENDERBUFFERSEXTPROC) (GLsizei n, const GLuint *renderbuffers);
typedef void (APIENTRY * PFNGLGENRENDERBUFFERSEXTPROC) (GLsizei n, GLuint *renderbuffers);

typedef void (APIENTRY * PFNGLRENDERBUFFERSTORAGEEXTPROC) (GLenum target, GLenum internalformat,
                                       GLsizei width, GLsizei height);

typedef void (APIENTRY * PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC) (GLenum target,
                                              GLenum pname, GLint* params);

typedef GLboolean (APIENTRY * PFNGLISFRAMEBUFFEREXTPROC) (GLuint framebuffer);
typedef void (APIENTRY * PFNGLBINDFRAMEBUFFEREXTPROC) (GLenum target, GLuint framebuffer);
typedef void (APIENTRY * PFNGLDELETEFRAMEBUFFERSEXTPROC) (GLsizei n, const GLuint *framebuffers);
typedef void (APIENTRY * PFNGLGENFRAMEBUFFERSEXTPROC) (GLsizei n, GLuint *framebuffers);

typedef GLenum (APIENTRY * PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) (GLenum target);

typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE1DEXTPROC) (GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level);
typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) (GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level);
typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE3DEXTPROC) (GLenum target, GLenum attachment,
                                        GLenum textarget, GLuint texture,
                                        GLint level, GLint zoffset);

typedef void (APIENTRY * PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) (GLenum target, GLenum attachment,
                                           GLenum renderbuffertarget,
                                           GLuint renderbuffer);

typedef void (APIENTRY * PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC) (GLenum target,
                                                       GLenum attachment,
                                                       GLenum pname,
                                                       GLint *params);

typedef void (APIENTRY * PFNGLGENERATEMIPMAPEXTPROC) (GLenum target);
#endif