Function glad_gl_load_GL_EXT_framebuffer_blit

examples/include/gl.h:6797–6801

    glad_glCopyTexSubImage3DEXT = (PFNGLCOPYTEXSUBIMAGE3DEXTPROC) load(userptr, "glCopyTexSubImage3DEXT");
}
static void glad_gl_load_GL_EXT_framebuffer_blit( GLADuserptrloadfunc load, void* userptr) {
    if(!GLAD_GL_EXT_framebuffer_blit) return;
    glad_glBlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC) load(userptr, "glBlitFramebuffer");
    glad_glBlitFramebufferEXT = (PFNGLBLITFRAMEBUFFEREXTPROC) load(userptr, "glBlitFramebufferEXT");
}
static void glad_gl_load_GL_EXT_framebuffer_multisample( GLADuserptrloadfunc load, void* userptr) {
    if(!GLAD_GL_EXT_framebuffer_multisample) return;
    glad_glRenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC) load(userptr, "glRenderbufferStorageMultisample");