static BOOL init_opengl(void)
{
static BOOL init_done = FALSE;
static void *osmesa_handle;
char buffer[200];
unsigned int i;
if (init_done) return (osmesa_handle != NULL);
init_done = TRUE;
osmesa_handle = wine_dlopen( SONAME_LIBOSMESA, RTLD_NOW, buffer, sizeof(buffer) );
if (osmesa_handle == NULL)
{
ERR( "Failed to load OSMesa: %s\n", buffer );
return FALSE;
}
#define LOAD_FUNCPTR(f) do if (!(p##f = wine_dlsym( osmesa_handle, #f, buffer, sizeof(buffer) ))) \
{ \
ERR( "%s not found in %s (%s), disabling.\n", #f, SONAME_LIBOSMESA, buffer ); \
goto failed; \
} while(0)
LOAD_FUNCPTR(OSMesaCreateContextExt);
LOAD_FUNCPTR(OSMesaDestroyContext);
LOAD_FUNCPTR(OSMesaGetProcAddress);
LOAD_FUNCPTR(OSMesaMakeCurrent);
LOAD_FUNCPTR(OSMesaPixelStore);
#undef LOAD_FUNCPTR
for (i = 0; i < sizeof(opengl_func_names)/sizeof(opengl_func_names[0]); i++)
{
if (!(((void **)&opengl_funcs.gl)[i] = pOSMesaGetProcAddress( opengl_func_names[i] )))
{
ERR( "%s not found in %s, disabling.\n", opengl_func_names[i], SONAME_LIBOSMESA );
goto failed;
}
}
return TRUE;
failed:
wine_dlclose( osmesa_handle, NULL, 0 );
osmesa_handle = NULL;
return FALSE;
}
/***********************************************************************
* dibdrv_wglGetProcAddress
*/
static PROC dibdrv_wglGetProcAddress( const char *proc )
{
if (!strncmp( proc, "wgl", 3 )) return NULL;
return (PROC)pOSMesaGetProcAddress( proc );
}
