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vkd3d-shader/d3dbc: Respect "idx_count" when writing registers.

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Some SM1 src registers have idx_count = 0, in which case we have to
respect that instead of always reading reg->reg.idx[0].offset even when
it is invalid.
This commit is contained in:
Francisco Casas
2025-02-11 15:51:45 -03:00
committed by Henri Verbeet
parent 2327f87e37
commit 0e0ed72652
Notes: Henri Verbeet 2025-04-02 19:43:14 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1434
1 changed files with 9 additions and 2 deletions
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11
libs/vkd3d-shader/d3dbc.c
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@@ -1759,21 +1759,25 @@ static bool is_inconsequential_instr(const struct vkd3d_shader_instruction *ins)
static void write_sm1_dst_register(struct vkd3d_bytecode_buffer *buffer, const struct vkd3d_shader_dst_param *reg)
{
uint32_t offset = reg->reg.idx_count ? reg->reg.idx[0].offset : 0;
VKD3D_ASSERT(reg->write_mask);
put_u32(buffer, VKD3D_SM1_INSTRUCTION_PARAMETER
| sm1_encode_register_type(&reg->reg)
| (reg->modifiers << VKD3D_SM1_DST_MODIFIER_SHIFT)
| (reg->write_mask << VKD3D_SM1_WRITEMASK_SHIFT)
| (reg->reg.idx[0].offset & VKD3D_SM1_REGISTER_NUMBER_MASK));
| (offset & VKD3D_SM1_REGISTER_NUMBER_MASK));
}
static void write_sm1_src_register(struct vkd3d_bytecode_buffer *buffer, const struct vkd3d_shader_src_param *reg)
{
uint32_t offset = reg->reg.idx_count ? reg->reg.idx[0].offset : 0;
put_u32(buffer, VKD3D_SM1_INSTRUCTION_PARAMETER
| sm1_encode_register_type(&reg->reg)
| (reg->modifiers << VKD3D_SM1_SRC_MODIFIER_SHIFT)
| (swizzle_from_vsir(reg->swizzle) << VKD3D_SM1_SWIZZLE_SHIFT)
| (reg->reg.idx[0].offset & VKD3D_SM1_REGISTER_NUMBER_MASK));
| (offset & VKD3D_SM1_REGISTER_NUMBER_MASK));
}
static void d3dbc_write_instruction(struct d3dbc_compiler *d3dbc, const struct vkd3d_shader_instruction *ins)
@@ -1831,6 +1835,7 @@ static void d3dbc_write_vsir_def(struct d3dbc_compiler *d3dbc, const struct vkd3
.reg.type = VKD3DSPR_CONST,
.write_mask = VKD3DSP_WRITEMASK_ALL,
.reg.idx[0].offset = ins->dst[0].reg.idx[0].offset,
.reg.idx_count = 1,
};
token = VKD3D_SM1_OP_DEF;
@@ -1863,6 +1868,7 @@ static void d3dbc_write_vsir_sampler_dcl(struct d3dbc_compiler *d3dbc,
reg.reg.type = VKD3DSPR_COMBINED_SAMPLER;
reg.write_mask = VKD3DSP_WRITEMASK_ALL;
reg.reg.idx[0].offset = reg_id;
reg.reg.idx_count = 1;
write_sm1_dst_register(buffer, &reg);
}
@@ -1982,6 +1988,7 @@ static void d3dbc_write_semantic_dcl(struct d3dbc_compiler *d3dbc,
uint32_t token, usage_idx;
bool ret;
reg.reg.idx_count = 1;
if (sm1_register_from_semantic_name(version, element->semantic_name,
element->semantic_index, output, &reg.reg.type, &reg.reg.idx[0].offset))
{