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authorBrian Paul <brianp@vmware.com>2011-05-18 16:17:12 -0600
committerBrian Paul <brianp@vmware.com>2011-05-18 16:33:18 -0600
commitb82461f2bf4a7fe0719ca1e8b45060c775cf680c (patch)
tree845430543a14343e4209d4040d3597b2844d078a /src/glsl
parent71f9f4901a340674465d2377c6c61bbe2f766e79 (diff)
bezier: check for GL_ARB_geometry_shader4 extension
Diffstat (limited to 'src/glsl')
-rw-r--r--src/glsl/bezier.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/glsl/bezier.c b/src/glsl/bezier.c
index b4036e77..0b56bc1c 100644
--- a/src/glsl/bezier.c
+++ b/src/glsl/bezier.c
@@ -161,6 +161,11 @@ static void init(void)
if (!ShadersSupported())
exit(1);
+ if (!glutExtensionSupported("GL_ARB_geometry_shader4")) {
+ printf("This demo requires GL_ARB_geometry_shader4\n");
+ exit(1);
+ }
+
menu_init();
fragShader = glCreateShader(GL_FRAGMENT_SHADER);