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isl: disable MCS compression on R9G9B9E5

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Not supported according to the docs and will trigger an assert
isl_get_render_compression_format().

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable
Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26112>
(cherry picked from commit d4499c4cb2)
This commit is contained in:
Lionel Landwerlin 2023-11-08 16:40:49 +02:00 • committed by Eric Engestrom
parent 8d9fa8ef99
commit 193256f9e7
2 changed files with 8 additions and 1 deletions
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2
.pick_status.json
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@ -124,7 +124,7 @@
"description": "isl: disable MCS compression on R9G9B9E5",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

7
src/intel/isl/isl.c
View file

@ -2774,6 +2774,13 @@ isl_surf_get_mcs_surf(const struct isl_device *dev,
if (intel_device_info_is_dg2(dev->info))
return false;
/* On Gfx12+ this format is not listed in TGL PRMs, Volume 2b: Command
* Reference: Enumerations, RenderCompressionFormat
*/
if (ISL_GFX_VER(dev) >= 12 &&
surf->format == ISL_FORMAT_R9G9B9E5_SHAREDEXP)
return false;
/* The following are true of all multisampled surfaces */
assert(surf->samples > 1);
assert(surf->dim == ISL_SURF_DIM_2D);