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i965/gen7: Add support for gl_PointCoord.

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This is exactly analogous to Eric's Gen6 change in commit
6861a70177.  His explanation:

"This is just like PointSprite overrides, but it's always on for that
 attribute."

Fixes glsl-fs-pointcoord and gtf/point_sprites.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

(cherry-picked from commit 186e37c754)
This commit is contained in:
Kenneth Graunke 2011-06-29 15:18:55 -07:00 • committed by Ian Romanick
parent 31f4ab790f
commit e6e7c456de
1 changed files with 3 additions and 0 deletions
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src/mesa/drivers/dri/i965/gen7_sf_state.c
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@ -79,6 +79,9 @@ upload_sbe_state(struct brw_context *brw)
dw10 |= (1 << input_index);
}
if (attr == FRAG_ATTRIB_PNTC)
dw10 |= (1 << input_index);
/* The hardware can only do the overrides on 16 overrides at a
* time, and the other up to 16 have to be lined up so that the
* input index = the output index. We'll need to do some