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vkd3d-shader/ir: Do not merge signature elements which have different interpolation modes.

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Regression in signature normalisation, however the old code was not
correct either because it would apply the interpolation mode to all
components. Found in an Assassin's Creed: Valhalla shader.
This commit is contained in:
Conor McCarthy 2023-12-06 12:37:38 +10:00 committed by Alexandre Julliard
parent 8d83b2eaec
commit b5c067b41a
Notes: Alexandre Julliard 2023-12-06 23:24:41 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/513
1 changed files with 2 additions and 1 deletions
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libs/vkd3d-shader/ir.c
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@ -777,8 +777,9 @@ static bool shader_signature_merge(struct shader_signature *s, uint8_t range_map
f = &elements[j];
/* Merge different components of the same register unless sysvals are different,
* or it will be relative-addressed. */
* interpolation modes are different, or it will be relative-addressed. */
if (f->register_index != e->register_index || f->sysval_semantic != e->sysval_semantic
|| f->interpolation_mode != e->interpolation_mode
|| range_map_get_register_count(range_map, f->register_index, f->mask) > 1)
break;