fix even-sized point positioning (bug 11874)

diff --git a/src/mesa/swrast/s_points.c b/src/mesa/swrast/s_points.c
index 4768fbea972bb5a3973f3a9fce026ff3ba0ac246..21316372e80cde57ac109c7f055d5e8d0ad64f68 100644 (file)
--- a/src/mesa/swrast/s_points.c
+++ b/src/mesa/swrast/s_points.c
@@ -172,9 +172,9 @@ sprite_point(GLcontext *ctx, const SWvertex *vert)
       }
       else {
          /* even size */
-         xmin = (GLint) x - iRadius + 1;
+         xmin = (GLint) x - iRadius;
          xmax = xmin + iSize - 1;
-         ymin = (GLint) y - iRadius + 1;
+         ymin = (GLint) y - iRadius;
          ymax = ymin + iSize - 1;
       }
 
@@ -418,9 +418,9 @@ large_point(GLcontext *ctx, const SWvertex *vert)
       }
       else {
          /* even size */
-         xmin = (GLint) x - iRadius + 1;
+         xmin = (GLint) x - iRadius;
          xmax = xmin + iSize - 1;
-         ymin = (GLint) y - iRadius + 1;
+         ymin = (GLint) y - iRadius;
          ymax = ymin + iSize - 1;
       }