X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?p=xscreensaver;a=blobdiff_plain;f=hacks%2Fglx%2Fflipscreen3d.c;h=8ccc710e2880befed674fa7da1d87638f0c1bbc6;hp=2134fbcfae256ebaba876c623352c86aa27aa864;hb=cccbddbc4140cf9a06d7d95cc5c0ca36eb5d6e28;hpb=a94197e76a5dea5cb60542840809d6c20d0abbf3

diff --git a/hacks/glx/flipscreen3d.c b/hacks/glx/flipscreen3d.c
index 2134fbcf..8ccc710e 100644
--- a/hacks/glx/flipscreen3d.c
+++ b/hacks/glx/flipscreen3d.c
@@ -389,6 +389,12 @@ void getSnapshot (ModeInfo *modeinfo)
  status = gluBuild2DMipmaps(GL_TEXTURE_2D, 3,
                             ximage->width, ximage->height,
                             GL_RGBA, GL_UNSIGNED_BYTE, ximage->data);
+
+ if (!status && glGetError())
+   /* Some implementations of gluBuild2DMipmaps(), but set a GL error anyway.
+      We could just call check_gl_error(), but that would exit. */
+   status = -1;
+
  if (status)
    {
      const char *s = gluErrorString (status);