void* NSGLGetProcAddress (const GLubyte *name)
{
static const struct mach_header* image = NULL;
NSSymbol symbol;
char* symbolName;
if (NULL == image)
{
#ifdef GLEW_REGAL
image = NSAddImage("libRegal.dylib", NSADDIMAGE_OPTION_RETURN_ON_ERROR);
#else
image = NSAddImage("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", NSADDIMAGE_OPTION_RETURN_ON_ERROR);
#endif
}
/* prepend a '_' for the Unix C symbol mangling convention */
symbolName = malloc(strlen((const char*)name) + 2);
strcpy(symbolName+1, (const char*)name);
symbolName[0] = '_';
symbol = NULL;
/* if (NSIsSymbolNameDefined(symbolName))
symbol = NSLookupAndBindSymbol(symbolName); */
symbol = image ? NSLookupSymbolInImage(image, symbolName, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR) : NULL;
free(symbolName);
if( symbol ) return NSAddressOfSymbol(symbol);
#ifdef GLEW_APPLE_GLX
return dlGetProcAddress( name ); // try next for glx symbols
#else
return NULL;
#endif
}
void* NSGLGetProcAddress (const GLubyte *name)
{
static void* image = NULL;
void* addr;
if (NULL == image)
{
image = dlopen("/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL", RTLD_LAZY);
}
if( !image ) return NULL;
addr = dlsym(image, (const char*)name);
if( addr ) return addr;
#ifdef GLEW_APPLE_GLX
return dlGetProcAddress( name ); // try next for glx symbols
#else
return NULL;
#endif
}