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(parent: 082874e) | patch
i965/blorp: Compute sample number correctly for 8x MSAA.
authorPaul Berry <stereotype441@gmail.com>
Wed, 18 Jul 2012 04:06:01 +0000 (21:06 -0700)
committerPaul Berry <stereotype441@gmail.com>
Tue, 24 Jul 2012 21:52:58 +0000 (14:52 -0700)
commit619471dc322de80942f7dbb29a437890e48155c6
treedfdfa396d2b645fb0b32f4bcdd6acb974564426btree
parent082874e3891e588f674508be6578f600b35852c4commit | diff
i965/blorp: Compute sample number correctly for 8x MSAA.

When operating in persample dispatch mode, the blorp engine would
previously assume that subspan N always represented sample N (this is
correct assuming 4x MSAA and a 16-wide dispatch).  In order to support
8x MSAA, we must compute which sample is associated with each subspan,
using the "Starting Sample Pair Index" field in the thread payload.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
src/mesa/drivers/dri/i965/brw_blorp_blit.cpp diff | blob | history