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i965: Update comment about clipper constants.

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The old VS backend doesn't exist, but I believe these still need to be
delivered to the clipper thread.

Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Kenneth Graunke 2012-10-26 11:01:57 -07:00
parent b68e662e61
commit 31c1ea5ed4
1 changed files with 1 additions and 9 deletions
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10
src/mesa/drivers/dri/i965/brw_curbe.c
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@ -207,15 +207,7 @@ brw_upload_constant_buffer(struct brw_context *brw)
}
}
/* When using the old VS backend, the clipplanes are actually delivered to
* both CLIP and VS units. VS uses them to calculate the outcode bitmasks.
*
* When using the new VS backend, it is responsible for setting up its own
* clipplane constants if it needs them. This results in a slight waste of
* of curbe space, but the advantage is that the new VS backend can use its
* general-purpose uniform layout code to store the clipplanes.
*/
/* clipper constants */
if (brw->curbe.clip_size) {
GLuint offset = brw->curbe.clip_start * 16;
GLuint j;