Mesa (master): svga: fix pixel center integer
Brian Paul
brianp at kemper.freedesktop.org
Tue Oct 1 00:54:20 UTC 2013
Module: Mesa
Branch: master
Commit: 1d05caf9f2b27b1af4424ebd66584ab2b25025a5
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=1d05caf9f2b27b1af4424ebd66584ab2b25025a5
Author: Brian Paul <brianp at vmware.com>
Date: Mon Sep 30 09:47:31 2013 -0600
svga: fix pixel center integer
The svga/d3d9 convention is that pixel centers are at integer coordinates.
Fixes piglit glsl-arb-fragment-coord-conventions test.
Reviewed-by: José Fonseca <jfonseca at vmware.com>
---
src/gallium/drivers/svga/svga_screen.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index d0e242a..a1108c6 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -207,11 +207,13 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
return 1;
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
- case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
return 1;
+ case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
+ return 0;
case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
- case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
return 0;
+ case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
+ return 1;
case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
return 1; /* The color outputs of vertex shaders are not clamped */
More information about the mesa-commit
mailing list