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vkd3d-shader/ir: Don't shift register write masks by the component index in shader_dst_param_io_normalise().

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This loses information about which source elements they want, making
"o.yzw = reg.xxyz" compile to "o = reg.xxy" instead of "o = reg.xyz".
This commit is contained in:
Evan Tang 2024-10-04 10:40:06 -05:00 committed by Henri Verbeet
parent b5ccc0e705
commit c571a45e65
Notes: Henri Verbeet 2024-10-07 17:54:27 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1151
2 changed files with 3 additions and 5 deletions
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1
libs/vkd3d-shader/ir.c
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@ -1667,7 +1667,6 @@ static bool shader_dst_param_io_normalise(struct vkd3d_shader_dst_param *dst_par
vkd3d_unreachable();
e = &signature->elements[element_idx];
dst_param->write_mask >>= vsir_write_mask_get_component_idx(e->mask);
if (is_io_dcl)
{
/* Validated in the TPF reader. */

7
libs/vkd3d-shader/spirv.c
View File

@ -5510,7 +5510,7 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
const struct shader_signature *shader_signature;
const struct vkd3d_spirv_builtin *builtin;
enum vkd3d_shader_sysval_semantic sysval;
uint32_t write_mask, reg_write_mask;
uint32_t write_mask;
bool use_private_variable = false;
struct vkd3d_symbol reg_symbol;
SpvStorageClass storage_class;
@ -5561,7 +5561,6 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
use_private_variable = true;
}
reg_write_mask = write_mask >> component_idx;
vkd3d_symbol_make_io(&reg_symbol, reg_type, element_idx);
if (rb_get(&compiler->symbol_table, &reg_symbol))
@ -5639,7 +5638,7 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
vkd3d_symbol_set_register_info(&reg_symbol, var_id, storage_class,
use_private_variable ? VKD3D_SHADER_COMPONENT_FLOAT : component_type,
use_private_variable ? VKD3DSP_WRITEMASK_ALL : reg_write_mask);
use_private_variable ? VKD3DSP_WRITEMASK_ALL : write_mask);
reg_symbol.info.reg.is_aggregate = array_sizes[0] || array_sizes[1];
VKD3D_ASSERT(!builtin || !builtin->spirv_array_size || use_private_variable || array_sizes[0] || array_sizes[1]);
@ -5650,7 +5649,7 @@ static void spirv_compiler_emit_output(struct spirv_compiler *compiler,
if (use_private_variable)
{
compiler->private_output_variable[element_idx] = var_id;
compiler->private_output_variable_write_mask[element_idx] |= reg_write_mask;
compiler->private_output_variable_write_mask[element_idx] |= write_mask >> component_idx;
if (!compiler->epilogue_function_id)
compiler->epilogue_function_id = vkd3d_spirv_alloc_id(builder);
}