1 files changed, 3 insertions, 0 deletions
diff --git a/xc/extras/Mesa/src/texstate.c b/xc/extras/Mesa/src/texstate.c
index db4031fcc..89db8520c 100644
--- a/xc/extras/Mesa/src/texstate.c
+++ b/xc/extras/Mesa/src/texstate.c
@@ -1362,6 +1362,9 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
             *params = 0;
          else if (img->TexFormat->IntensityBits > 0)
             *params = img->TexFormat->IntensityBits;
+         else if (img->TexFormat->LuminanceBits > 0)
+	    /* intensity probably stored as luminance-alpha texture */
+            *params = MIN2(img->TexFormat->LuminanceBits, img->TexFormat->AlphaBits);
          else /* intensity probably stored as rgb texture */
             *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits);
          return;