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vkd3d-shader/hlsl: Only read used coordinates in encode_texel_offset_as_aoffimmi().

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The V and W offsets may be uninitialized, which may spuriously trigger "out of range" errors.
This commit is contained in:
Zebediah Figura 2023-06-05 12:32:27 -05:00 committed by Alexandre Julliard
parent 7b476573ff
commit 974528cbe3
Notes: Alexandre Julliard 2023-06-08 23:22:36 +02:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/223
1 changed files with 6 additions and 2 deletions
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8
libs/vkd3d-shader/tpf.c
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@ -3657,8 +3657,12 @@ static bool encode_texel_offset_as_aoffimmi(struct sm4_instruction *instr,
modif.type = VKD3D_SM4_MODIFIER_AOFFIMMI;
modif.u.aoffimmi.u = offset->value.u[0].i;
modif.u.aoffimmi.v = offset->value.u[1].i;
modif.u.aoffimmi.w = offset->value.u[2].i;
modif.u.aoffimmi.v = 0;
modif.u.aoffimmi.w = 0;
if (offset->node.data_type->dimx > 1)
modif.u.aoffimmi.v = offset->value.u[1].i;
if (offset->node.data_type->dimx > 2)
modif.u.aoffimmi.w = offset->value.u[2].i;
if (modif.u.aoffimmi.u < -8 || modif.u.aoffimmi.u > 7
|| modif.u.aoffimmi.v < -8 || modif.u.aoffimmi.v > 7
|| modif.u.aoffimmi.w < -8 || modif.u.aoffimmi.w > 7)