X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=util.h;h=3abd8d124a6e11f6087f0e6ccb62765db238b39b;hp=0d499453048d2e9bebb2ea50c8d56fd75c01c67d;hb=e61807327b9a1f98f39dd5e1496254905f78e581;hpb=02d19b8323a1b626acd9d3b4f08bb63f51149cf3

diff --git a/util.h b/util.h
index 0d49945..3abd8d1 100644
--- a/util.h
+++ b/util.h
@@ -1,7 +1,16 @@
 #ifndef _UTIL_H
 #define _UTIL_H 1
 
+#include <stdio.h>
+#include <stdlib.h>
+
 // assumes h in [0, 2pi> or [-pi, pi>
 void hsv2rgb(float h, float s, float v, float *r, float *g, float *b);
 
+#ifdef NDEBUG
+#define check_error()
+#else
+#define check_error() { int err = glGetError(); if (err != GL_NO_ERROR) { printf("GL error 0x%x at line %d\n", err, __LINE__); exit(1); } }
+#endif
+
 #endif // !defined(_UTIL_H)