diff options
| author | Kenneth Graunke <[email protected]> | 2017-04-26 22:34:50 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2017-04-28 17:03:33 -0700 |
| commit | a1f12574b057a6eb00e17d76039df5ae2cb2a6e7 (patch) | |
| tree | e93e05d0e5696c625446b728f5328e886f364fdb /src/mesa | |
| parent | 4878ab9bd4281c4554254bbb0c62faae453bb863 (diff) | |
i965: Set point rasterization rule to UPPER_RIGHT on Gen6-7.5.
Gen4-5 and Gen8+ already set this, but Gen6-7.5 did not. We ought to
be consistent - the answer depends on the API, not the hardware generation.
The Sandybridge PRM says about RASTRULE_UPPER_RIGHT:
"To match OpenGL point rasterization rules (round to +infinity, where
this is the upper right direction wrt OpenGL screen origin of lower
left).
So this is likely the one we should use.
Reviewed-by: Rafael Antognolli <[email protected]>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_wm_state.c | 2 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen7_wm_state.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c index aabae70d10b..2fb2a333853 100644 --- a/src/mesa/drivers/dri/i965/gen6_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c @@ -199,6 +199,8 @@ gen6_upload_wm_state(struct brw_context *brw, dw6 |= GEN6_WM_MSDISPMODE_PERSAMPLE; } + dw6 |= GEN6_WM_POINT_RASTRULE_UPPER_RIGHT; + /* From the SNB PRM, volume 2 part 1, page 281: * "If the PS kernel does not need the Position XY Offsets * to compute a Position XY value, then this field should be diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c index 1c33db4d3b5..5efe55a0088 100644 --- a/src/mesa/drivers/dri/i965/gen7_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c @@ -51,6 +51,7 @@ upload_wm_state(struct brw_context *brw) dw1 |= GEN7_WM_STATISTICS_ENABLE; dw1 |= GEN7_WM_LINE_AA_WIDTH_1_0; dw1 |= GEN7_WM_LINE_END_CAP_AA_WIDTH_0_5; + dw1 |= GEN7_WM_POINT_RASTRULE_UPPER_RIGHT; /* _NEW_LINE */ if (ctx->Line.StippleFlag) |