i965/blorp: Clarify why width/height must be adjusted for Gen6 IMS surfaces.
authorPaul Berry <stereotype441@gmail.com>
Wed, 29 Aug 2012 19:04:30 +0000 (12:04 -0700)
committerPaul Berry <stereotype441@gmail.com>
Wed, 12 Sep 2012 21:44:12 +0000 (14:44 -0700)
commit32c7b2769cbe80ff56d1c73c4f9b62f13f577c8d
tree42c07fc288330a75a0cfabef0952c392e76f9e59
parentbde833c9d014ad8aebfab0d2285184d7e6d5896d
i965/blorp: Clarify why width/height must be adjusted for Gen6 IMS surfaces.

Also add a clarifying comment for why the width/height doesn't need
adjustment for Gen7.

NOTE: This is a candidate for stable release branches.

Reviewed-by: Eric Anholt <eric@anholt.net>
src/mesa/drivers/dri/i965/gen6_blorp.cpp
src/mesa/drivers/dri/i965/gen7_blorp.cpp