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vkd3d-shader/msl: Implement support for VKD3DSPR_UNDEF registers.

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MSL doesn't seem to have any special handling for undefined values,
differently from SPIR-V. Thus we just emit zeros.

UNDEF registers are sometimes created by the DXIL parser,
for example in sm6_parser_emit_composite_construct().
This commit is contained in:
Giovanni Mascellani
2025-10-20 22:04:46 +02:00
committed by Henri Verbeet
parent eaabd2ffd7
commit cc1db404b0
Notes: Henri Verbeet 2025-10-30 20:00:07 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1757
10 changed files with 125 additions and 135 deletions
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10
tests/hlsl/initializer-objects.shader_test
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@@ -25,9 +25,8 @@ float4 main() : sv_target
}
[test]
todo(msl & sm>=6) draw quad
probe (0, 0) rgba (0.2, 0.2, 0.2, 0.1)
draw quad
probe (0, 0) f32(0.2, 0.2, 0.2, 0.1)
[pixel shader]
Texture2D tex;
@@ -48,9 +47,8 @@ float4 main() : sv_target
}
[test]
todo(msl & sm>=6) draw quad
probe (0, 0) rgba (31.1, 41.1, 51.1, 61.1) 1
draw quad
probe (0, 0) f32(31.1, 41.1, 51.1, 61.1) 1
[pixel shader]
Texture2D tex1;