From: Brian Paul <brianp@vmware.com>
Date: Tue, 20 Oct 2009 22:22:03 +0000 (-0600)
Subject: progs/trivial: check if GL_ARB_occlusion_query is supported
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5283a3fb25b2667501eb782fb461c981200a65ef;p=mesa.git

progs/trivial: check if GL_ARB_occlusion_query is supported
---

diff --git a/progs/trivial/tri-query.c b/progs/trivial/tri-query.c
index 85e39df2dfa..94956a86f33 100644
--- a/progs/trivial/tri-query.c
+++ b/progs/trivial/tri-query.c
@@ -39,6 +39,11 @@ GLenum doubleBuffer;
 
 static void Init(void)
 {
+   if (!glutExtensionSupported("GL_ARB_occlusion_query")) {
+      fprintf(stderr, "Sorry, this program requires GL_ARB_occlusion_query\n");
+      exit(1);
+   }
+
    fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
    fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
    fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));