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vkd3d-shader/tpf: Write sysval semantic consistently.

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Specifically we should write the sysval semantic as an instruction idx
for the following instructions:

    VKD3D_SM4_OP_DCL_INPUT_SGV
    VKD3D_SM4_OP_DCL_INPUT_PS_SGV
    VKD3D_SM4_OP_DCL_INPUT_SIV
    VKD3D_SM4_OP_DCL_INPUT_PS_SIV
    VKD3D_SM4_OP_DCL_OUTPUT_SIV

and not the following ones:

    VKD3D_SM4_OP_DCL_INPUT
    VKD3D_SM4_OP_DCL_PS_INPUT
    VKD3D_SM4_OP_DCL_OUTPUT

Which is consistent with what we do when reading these instructions in
the following functions:

    shader_sm4_read_declaration_register_semantic()
    shader_sm4_read_dcl_input_ps_siv()

and

    shader_sm4_read_dcl_input_ps()
    shader_sm4_read_declaration_dst()

for the non-SGV and non-SIV cases.

Note that the non-SGV and non-SIV instructions don't need/use this
extra information because they rely on the dst register type and index.

I suggest to introduce this change because the here replaced check is
brittle, and we might be omitting the sysval semantic in some cases.
This commit is contained in:
Francisco Casas 2024-10-10 19:35:34 -03:00 committed by Henri Verbeet
parent 5fb3a91276
commit ad2f821ff5
Notes: Henri Verbeet 2024-10-15 17:04:18 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1174
1 changed files with 13 additions and 13 deletions
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22
libs/vkd3d-shader/tpf.c
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@ -4877,20 +4877,20 @@ static void write_sm4_dcl_semantic(const struct tpf_writer *tpf, const struct hl
instr.opcode = VKD3D_SM4_OP_DCL_OUTPUT_SIV;
}
switch (semantic)
if (instr.opcode == VKD3D_SM4_OP_DCL_OUTPUT)
{
case VKD3D_SHADER_SV_COVERAGE:
case VKD3D_SHADER_SV_DEPTH:
case VKD3D_SHADER_SV_DEPTH_GREATER_EQUAL:
case VKD3D_SHADER_SV_DEPTH_LESS_EQUAL:
case VKD3D_SHADER_SV_TARGET:
case VKD3D_SHADER_SV_NONE:
break;
default:
VKD3D_ASSERT(semantic == VKD3D_SHADER_SV_NONE || semantic == VKD3D_SHADER_SV_TARGET
|| instr.dsts[0].reg.type != VKD3DSPR_OUTPUT);
}
else if (instr.opcode == VKD3D_SM4_OP_DCL_INPUT || instr.opcode == VKD3D_SM4_OP_DCL_INPUT_PS)
{
VKD3D_ASSERT(semantic == VKD3D_SHADER_SV_NONE);
}
else
{
VKD3D_ASSERT(semantic != VKD3D_SHADER_SV_NONE);
instr.idx_count = 1;
instr.idx[0] = semantic;
break;
}
write_sm4_instruction(tpf, &instr);