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vkd3d-shader/ir: Fix the addition swizzle in vsir_program_lower_precise_mad().

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The swizzle from vsir_swizzle_from_writemask() is for use with a
contiguous write mask starting at bit zero, but we need the final write
mask to match that of the original MAD instruction.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58746
This commit is contained in:
Conor McCarthy
2025-10-09 17:41:26 +10:00
committed by Henri Verbeet
parent f9d12e5596
commit 1c23976660
Notes: Henri Verbeet 2025-10-15 13:00:34 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1781
2 changed files with 5 additions and 2 deletions
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2
tests/hlsl/arithmetic-float-uniform.shader_test
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@@ -201,7 +201,7 @@ uniform 0 float4 1.5 1.5 1.5 1.5
uniform 4 float4 1.00000007 -42.1 1.625 -5.0
uniform 8 float4 1.00000007 -1.0 2.0 2.0
todo(glsl | msl) draw quad
todo probe (0, 0) f32(6.0, 6.0, 3.93750072, 314.25) 1
probe (0, 0) f32(6.0, 6.0, 3.93750072, 314.25) 1
[require]
shader model >= 5.0