From: James Benton <jbenton@vmware.com>
Date: Tue, 31 Jul 2012 11:48:27 +0000 (+0100)
Subject: Check if GL_ARB_timer_query is supported before using it.
X-Git-Url: https://git.cworth.org/git?a=commitdiff_plain;h=b6ca846eb0bd53c4e28a6fcd6bf2a403da94a12f;p=apitrace

Check if GL_ARB_timer_query is supported before using it.
---

diff --git a/retrace/glretrace_main.cpp b/retrace/glretrace_main.cpp
index ce06402..e3bb9d4 100644
--- a/retrace/glretrace_main.cpp
+++ b/retrace/glretrace_main.cpp
@@ -171,6 +171,12 @@ getActiveProgram()
 void
 beginProfile(trace::Call &call) {
     if (firstFrame) {
+        const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
+        if (!glws::checkExtension("GL_ARB_timer_query", extensions)) {
+            std::cout << "Error: Cannot run profile, GL_ARB_timer_query extension is not supported." << std::endl;
+            exit(-1);
+        }
+
         frame_start();
     }