- glIsRenderbufferEXT=reinterpret_cast<PFNGLISRENDERBUFFEREXTPROC>(get_proc_address("glIsRenderbufferEXT"));
- glBindRenderbufferEXT=reinterpret_cast<PFNGLBINDRENDERBUFFEREXTPROC>(get_proc_address("glBindRenderbufferEXT"));
- glDeleteRenderbuffersEXT=reinterpret_cast<PFNGLDELETERENDERBUFFERSEXTPROC>(get_proc_address("glDeleteRenderbuffersEXT"));
- glGenRenderbuffersEXT=reinterpret_cast<PFNGLGENRENDERBUFFERSEXTPROC>(get_proc_address("glGenRenderbuffersEXT"));
- glRenderbufferStorageEXT=reinterpret_cast<PFNGLRENDERBUFFERSTORAGEEXTPROC>(get_proc_address("glRenderbufferStorageEXT"));
- glGetRenderbufferParameterivEXT=reinterpret_cast<PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC>(get_proc_address("glGetRenderbufferParameterivEXT"));
- glIsFramebufferEXT=reinterpret_cast<PFNGLISFRAMEBUFFEREXTPROC>(get_proc_address("glIsFramebufferEXT"));
- glBindFramebufferEXT=reinterpret_cast<PFNGLBINDFRAMEBUFFEREXTPROC>(get_proc_address("glBindFramebufferEXT"));
- glDeleteFramebuffersEXT=reinterpret_cast<PFNGLDELETEFRAMEBUFFERSEXTPROC>(get_proc_address("glDeleteFramebuffersEXT"));
- glGenFramebuffersEXT=reinterpret_cast<PFNGLGENFRAMEBUFFERSEXTPROC>(get_proc_address("glGenFramebuffersEXT"));
- glCheckFramebufferStatusEXT=reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC>(get_proc_address("glCheckFramebufferStatusEXT"));
- glFramebufferTexture1DEXT=reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE1DEXTPROC>(get_proc_address("glFramebufferTexture1DEXT"));
- glFramebufferTexture2DEXT=reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE2DEXTPROC>(get_proc_address("glFramebufferTexture2DEXT"));
- glFramebufferTexture3DEXT=reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE3DEXTPROC>(get_proc_address("glFramebufferTexture3DEXT"));
- glFramebufferRenderbufferEXT=reinterpret_cast<PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC>(get_proc_address("glFramebufferRenderbufferEXT"));
- glGetFramebufferAttachmentParameterivEXT=reinterpret_cast<PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC>(get_proc_address("glGetFramebufferAttachmentParameterivEXT"));
- glGenerateMipmapEXT=reinterpret_cast<PFNGLGENERATEMIPMAPEXTPROC>(get_proc_address("glGenerateMipmapEXT"));
+ if(is_version_at_least(3, 0) || is_supported("GL_ARB_framebuffer_object"))
+ {
+ glBindFramebuffer = reinterpret_cast<PFNGLBINDFRAMEBUFFERPROC>(get_proc_address("glBindFramebuffer"));
+ glBindRenderbuffer = reinterpret_cast<PFNGLBINDRENDERBUFFERPROC>(get_proc_address("glBindRenderbuffer"));
+ glCheckFramebufferStatus = reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSPROC>(get_proc_address("glCheckFramebufferStatus"));
+ glDeleteFramebuffers = reinterpret_cast<PFNGLDELETEFRAMEBUFFERSPROC>(get_proc_address("glDeleteFramebuffers"));
+ glDeleteRenderbuffers = reinterpret_cast<PFNGLDELETERENDERBUFFERSPROC>(get_proc_address("glDeleteRenderbuffers"));
+ glFramebufferRenderbuffer = reinterpret_cast<PFNGLFRAMEBUFFERRENDERBUFFERPROC>(get_proc_address("glFramebufferRenderbuffer"));
+ glFramebufferTexture1D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE1DPROC>(get_proc_address("glFramebufferTexture1D"));
+ glFramebufferTexture2D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE2DPROC>(get_proc_address("glFramebufferTexture2D"));
+ glFramebufferTexture3D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE3DPROC>(get_proc_address("glFramebufferTexture3D"));
+ glGenFramebuffers = reinterpret_cast<PFNGLGENFRAMEBUFFERSPROC>(get_proc_address("glGenFramebuffers"));
+ glGenRenderbuffers = reinterpret_cast<PFNGLGENRENDERBUFFERSPROC>(get_proc_address("glGenRenderbuffers"));
+ glGenerateMipmap = reinterpret_cast<PFNGLGENERATEMIPMAPPROC>(get_proc_address("glGenerateMipmap"));
+ glGetFramebufferAttachmentParameteriv = reinterpret_cast<PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC>(get_proc_address("glGetFramebufferAttachmentParameteriv"));
+ glGetRenderbufferParameteriv = reinterpret_cast<PFNGLGETRENDERBUFFERPARAMETERIVPROC>(get_proc_address("glGetRenderbufferParameteriv"));
+ glIsFramebuffer = reinterpret_cast<PFNGLISFRAMEBUFFERPROC>(get_proc_address("glIsFramebuffer"));
+ glIsRenderbuffer = reinterpret_cast<PFNGLISRENDERBUFFERPROC>(get_proc_address("glIsRenderbuffer"));
+ glRenderbufferStorage = reinterpret_cast<PFNGLRENDERBUFFERSTORAGEPROC>(get_proc_address("glRenderbufferStorage"));
+ return Extension::CORE;
+ }
+ if(is_supported("GL_EXT_framebuffer_object"))
+ {
+ glBindFramebuffer = reinterpret_cast<PFNGLBINDFRAMEBUFFERPROC>(get_proc_address("glBindFramebufferEXT"));
+ glBindRenderbuffer = reinterpret_cast<PFNGLBINDRENDERBUFFERPROC>(get_proc_address("glBindRenderbufferEXT"));
+ glCheckFramebufferStatus = reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSPROC>(get_proc_address("glCheckFramebufferStatusEXT"));
+ glDeleteFramebuffers = reinterpret_cast<PFNGLDELETEFRAMEBUFFERSPROC>(get_proc_address("glDeleteFramebuffersEXT"));
+ glDeleteRenderbuffers = reinterpret_cast<PFNGLDELETERENDERBUFFERSPROC>(get_proc_address("glDeleteRenderbuffersEXT"));
+ glFramebufferRenderbuffer = reinterpret_cast<PFNGLFRAMEBUFFERRENDERBUFFERPROC>(get_proc_address("glFramebufferRenderbufferEXT"));
+ glFramebufferTexture1D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE1DPROC>(get_proc_address("glFramebufferTexture1DEXT"));
+ glFramebufferTexture2D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE2DPROC>(get_proc_address("glFramebufferTexture2DEXT"));
+ glFramebufferTexture3D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE3DPROC>(get_proc_address("glFramebufferTexture3DEXT"));
+ glGenFramebuffers = reinterpret_cast<PFNGLGENFRAMEBUFFERSPROC>(get_proc_address("glGenFramebuffersEXT"));
+ glGenRenderbuffers = reinterpret_cast<PFNGLGENRENDERBUFFERSPROC>(get_proc_address("glGenRenderbuffersEXT"));
+ glGenerateMipmap = reinterpret_cast<PFNGLGENERATEMIPMAPPROC>(get_proc_address("glGenerateMipmapEXT"));
+ glGetFramebufferAttachmentParameteriv = reinterpret_cast<PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC>(get_proc_address("glGetFramebufferAttachmentParameterivEXT"));
+ glGetRenderbufferParameteriv = reinterpret_cast<PFNGLGETRENDERBUFFERPARAMETERIVPROC>(get_proc_address("glGetRenderbufferParameterivEXT"));
+ glIsFramebuffer = reinterpret_cast<PFNGLISFRAMEBUFFERPROC>(get_proc_address("glIsFramebufferEXT"));
+ glIsRenderbuffer = reinterpret_cast<PFNGLISRENDERBUFFERPROC>(get_proc_address("glIsRenderbufferEXT"));
+ glRenderbufferStorage = reinterpret_cast<PFNGLRENDERBUFFERSTORAGEPROC>(get_proc_address("glRenderbufferStorageEXT"));
+ return Extension::EXTENSION;
+ }
+ return Extension::UNSUPPORTED;