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authorBrian Paul <[email protected]>2013-09-30 09:47:31 -0600
committerBrian Paul <[email protected]>2013-09-30 18:50:37 -0600
commit1d05caf9f2b27b1af4424ebd66584ab2b25025a5 (patch)
tree41860c3ab52d4e1b41d3c6e420bb798d1b97d164 /src/gallium
parent360610c89efa62c869ffbe32c050b0fb86525ffe (diff)
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 <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/svga/svga_screen.c6
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 d0e242ab447..a1108c62837 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 */