mesa: adjust texcoords for swrast sprite points.

Fixes glean pointSprite test w/ software rendering
2008-10-06 11:34:01 -06:00
parent 145d49838f
commit 6e34fc0d37
1 changed files with 2 additions and 2 deletions
@@ -129,13 +129,13 @@ sprite_point(GLcontext *ctx, const SWvertex *vert)
      s = 0.0;
      dsdx = 1.0 / size;
      if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) {
-         t0 = 0.0;
         dtdy = 1.0 / size;
+         t0 = 0.5 * dtdy;
      }
      else {
         /* GL_UPPER_LEFT */
-         t0 = 1.0;
         dtdy = -1.0 / size;
+         t0 = 1.0 + 0.5 * dtdy;
      }

      ATTRIB_LOOP_BEGIN