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| author | Kenneth Graunke <kenneth@whitecape.org> | 2014-02-10 16:48:14 -0800 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2014-02-19 15:43:22 -0800 |
| commit | 4af8c95783acb632befa40c5bfc7fc58b62873d0 (patch) | |
| tree | ad83e21f405157538f95e5869e7ef158dd221d8e /src/mesa/drivers/dri/i965/intel_screen.c | |
| parent | 51145a24f7938a4d5575d8d9aa4f8afa369d836b (diff) | |
| download | external_mesa3d-4af8c95783acb632befa40c5bfc7fc58b62873d0.zip external_mesa3d-4af8c95783acb632befa40c5bfc7fc58b62873d0.tar.gz external_mesa3d-4af8c95783acb632befa40c5bfc7fc58b62873d0.tar.bz2 | |
i965: Update physical width/height munging for 2x IMS MSAA.
I can't find any documentation to explain what ought to be done here, so
I simply guessed based on the pattern I observed in the 4x/8x cases.
It appears to work, but it could be totally wrong.
I was able to find the Sandybridge PRM quote from the comments in the
latest documentation: Shared Functions > 3D Sampler > Multisampled
Surface Behavior. However, it only mentions 4x MSAA - not even 8x.
After a substantial amount more digging, I was able to find a second
page (incorrectly tagged) which confirmed the formulas in our code for
8x MSAA. However, that page didn't mention 2x MSAA at all.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_screen.c')
0 files changed, 0 insertions, 0 deletions