On 02/15/2013 10:46 PM, Eric Anholt wrote:
The desktop spec asks for gl_PointCoord to be defined only when
GL_POINT_SPRITE is enabled, and it's undefined otherwise (why?!). The
ES spec doesn't have GL_POINT_SPRITE and gl_PointCoord is always
defined. So just make our implementation always give you gl_PointCoord
regardless of the enable.
We had a similar issue with core-profiles, which also lack the enable.
I seem to recall that we just changed the default state to enabled...
which would also fix this issue for i915. Right?
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32429
---
src/mesa/drivers/dri/i965/brw_sf.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_sf.c
b/src/mesa/drivers/dri/i965/brw_sf.c
index eb361a9..6e5bfe5 100644
--- a/src/mesa/drivers/dri/i965/brw_sf.c
+++ b/src/mesa/drivers/dri/i965/brw_sf.c
@@ -181,8 +181,11 @@ brw_upload_sf_prog(struct brw_context *brw)
key.point_sprite_coord_replace |= (1 << i);
}
}
- if (brw->fragment_program->Base.InputsRead &
BITFIELD64_BIT(FRAG_ATTRIB_PNTC))
+ if (brw->fragment_program->Base.InputsRead & FRAG_BIT_PNTC) {
key.do_point_coord = 1;
+ key.do_point_sprite = 1;
+ }
+
/*
* Window coordinates in a FBO are inverted, which means point
* sprite origin must be inverted, too.
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