#include <stdlib.h>
void *libgl_handle;
+void *wrapper_handle;
static void
open_libgl_handle (void)
}
}
+static void
+open_wrapper_handle (void)
+{
+ const char *path;
+
+ if (wrapper_handle)
+ return;
+
+ path = getenv ("GLAZE_WRAPPER");
+ if (path == NULL) {
+ fprintf (stderr, "GLAZE_WRAPPER unset. Please set to path of real libGL.so under glaze.\n");
+ exit (1);
+ }
+
+ wrapper_handle = dlopen (path, RTLD_LAZY);
+ if (wrapper_handle == NULL) {
+ fprintf (stderr, "Error: Failed to dlopen %s\n", path);
+ exit (1);
+ }
+}
+
static void
glaze_init (void) __attribute__((constructor));
glaze_init (void)
{
open_libgl_handle ();
+ open_wrapper_handle ();
}
static void *
resolve (const char *name)
{
+ void *symbol;
+
+ /* The wrapper gets first choice on all symbols. */
+ symbol = dlsym (wrapper_handle, name);
+ if (symbol)
+ return symbol;
+
return dlsym (libgl_handle, name);
}
name ## _resolver (void) { return resolve (#name); }
#include "specs/gl.def"
+#include "specs/glx.def"