X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=hacks%2Fglx%2Fstairs.c;h=6832bf4117bc0d48f34acad2a58f71ac3a0edf3b;hp=e905cae4a76c51f85be59de8d2c96979ed2e320d;hb=cccbddbc4140cf9a06d7d95cc5c0ca36eb5d6e28;hpb=a94197e76a5dea5cb60542840809d6c20d0abbf3

diff --git a/hacks/glx/stairs.c b/hacks/glx/stairs.c
index e905cae4..6832bf41 100644
--- a/hacks/glx/stairs.c
+++ b/hacks/glx/stairs.c
@@ -440,6 +440,7 @@ reshape_stairs(ModeInfo * mi, int width, int height)
 static void
 pinit(void)
 {
+    int status;
 	glClearDepth(1.0);
 	glClearColor(0.0, 0.0, 0.0, 1.0);
 
@@ -465,8 +466,21 @@ pinit(void)
 	glEnable(GL_CULL_FACE);
 
 	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-	gluBuild2DMipmaps(GL_TEXTURE_2D, 3, WoodTextureWidth, WoodTextureHeight,
-			  GL_RGB, GL_UNSIGNED_BYTE, WoodTextureData);
+
+    clear_gl_error();
+    status = gluBuild2DMipmaps(GL_TEXTURE_2D, 3,
+                               WoodTextureWidth, WoodTextureHeight,
+                               GL_RGB, GL_UNSIGNED_BYTE, WoodTextureData);
+    if (status)
+      {
+        const char *s = gluErrorString (status);
+        fprintf (stderr, "%s: error mipmapping %dx%d texture: %s\n",
+                 progname, WoodTextureWidth, WoodTextureHeight,
+                 (s ? s : "(unknown)"));
+        exit (1);
+      }
+    check_gl_error("mipmapping");
+
 	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);