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iris: Delete a comment suggesting we use tiled staging buffers

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We basically tried this, and it performed worse, so delete the
suggestion in the comments that we may want to do it someday.

Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10941>
This commit is contained in:
Kenneth Graunke 2021-05-20 11:25:35 -07:00 • committed by Marge Bot
parent dfe7ff5846
commit 1c73445d22
1 changed files with 1 additions and 2 deletions
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3
src/gallium/drivers/iris/iris_resource.c
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@ -2058,8 +2058,7 @@ iris_transfer_map(struct pipe_context *ctx,
*
* Images are less clear-cut. Resolves can be destructive, removing some
* of the underlying compression, so we'd rather blit the data to a linear
* temporary and map that, to avoid the resolve. (It might be better to
* a tiled temporary and use the tiled_memcpy paths...)
* temporary and map that, to avoid the resolve.
*/
if (!(usage & PIPE_MAP_DISCARD_RANGE) &&
!iris_has_invalid_primary(res, level, 1, box->z, box->depth)) {