diff options
| author | Brian Paul <brianp@vmware.com> | 2011-01-25 11:57:35 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2011-02-21 17:29:18 -0700 |
| commit | fa5c4b988a750ec1fd84ab355d4dac83bbd74f13 (patch) | |
| tree | 9e8f6677c2155e80bd5637e614dfd99aa1afc27b /src | |
| parent | 0a218b00e7deeea0c217c5854eda0b667d98384a (diff) | |
softpipe: fix off-by-one error in setup_fragcoord_coeff()
If we invert Y, need to subtract one from the surface height.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=26795
for softpipe.
NOTE: This is a candidate for the 7.9 and 7.10 branches.
(cherry picked from commit 40ac24e631e694e00652a2df6c0ac5d0f07f620f)
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/softpipe/sp_setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c index 5d727dc00df..0ce28f4c6ee 100644 --- a/src/gallium/drivers/softpipe/sp_setup.c +++ b/src/gallium/drivers/softpipe/sp_setup.c @@ -575,7 +575,7 @@ setup_fragcoord_coeff(struct setup_context *setup, uint slot) setup->coef[slot].dady[0] = 0.0; /*Y*/ setup->coef[slot].a0[1] = - (spfs->origin_lower_left ? setup->softpipe->framebuffer.height : 0) + (spfs->origin_lower_left ? setup->softpipe->framebuffer.height-1 : 0) + (spfs->pixel_center_integer ? 0.0 : 0.5); setup->coef[slot].dadx[1] = 0.0; setup->coef[slot].dady[1] = spfs->origin_lower_left ? -1.0 : 1.0; |