From: Carl Worth <cworth@cworth.org>
Date: Fri, 20 Sep 2013 23:39:17 +0000 (-0700)
Subject: Add wrapper for glXGetProcAddressARB
X-Git-Url: https://git.cworth.org/git?p=glfps;a=commitdiff_plain;h=b61062a780ddc9eea7217cb4f110cb65e5148b23

Add wrapper for glXGetProcAddressARB

Some applications may be using this to get at the functions we want to
wrap, so we have to wrap it as well.
---

diff --git a/glfps.c b/glfps.c
index 68d389a..e6739e4 100644
--- a/glfps.c
+++ b/glfps.c
@@ -8,6 +8,7 @@
 #include <GL/glx.h>
 
 #include <sys/time.h>
+#include <string.h>
 
 /* How many frames between reports. */
 #define REPORT_FREQ 60
@@ -46,3 +47,17 @@ glXSwapBuffers (Display *dpy, GLXDrawable drawable)
 
 	real_glXSwapBuffers (dpy, drawable);
 }
+
+void
+(*glXGetProcAddressARB (const GLubyte *func))(void)
+{
+	static typeof(&glXGetProcAddressARB) real_glXGetProcAddressARB = NULL;
+
+	if (strcmp((char *) func, "glXSwapBuffers") == 0)
+		return (void*) glXSwapBuffers;
+
+	if (real_glXGetProcAddressARB == NULL)
+		real_glXGetProcAddressARB = dlsym (RTLD_NEXT, "glXGetProcAddressARB");
+
+	return real_glXGetProcAddressARB (func);
+}