draw: fix points with negative w coords for d3d style point clipping

[mesa.git] / src / gallium / auxiliary / draw / draw_context.c

diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 9b5bcb5a3beba4735d760b2e651c8cd240a4c488..da1e958900cd74b3fa1acd0bd31923fff3114f07 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -27,7 +27,7 @@
 
  /*
   * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
+  *   Keith Whitwell <keithw@vmware.com>
   */
 
 
@@ -262,10 +262,10 @@ static void update_clip_flags( struct draw_context *draw )
                    draw->rasterizer && draw->rasterizer->depth_clip);
    draw->clip_user = draw->rasterizer &&
                      draw->rasterizer->clip_plane_enable != 0;
-   draw->clip_points_xy = draw->clip_xy &&
-                          (!draw->driver.bypass_clip_points ||
-                          (draw->rasterizer &&
-                          !draw->rasterizer->point_tri_clip));
+   draw->guard_band_points_xy = draw->guard_band_xy ||
+                                (draw->driver.bypass_clip_points &&
+                                (draw->rasterizer &&
+                                 draw->rasterizer->point_tri_clip));
 }
 
 /**