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vkd3d-shader/hlsl: Emit the minimum-precision global flag when minimum-precision semantics are used.

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There are other things we need to check, but this is a start.
This commit is contained in:
Elizabeth Figura
2025-01-27 16:31:51 -06:00
committed by Henri Verbeet
parent 055625448b
commit c2ca6b6bdf
Notes: Henri Verbeet 2025-03-06 17:32:40 +01:00 
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1387
1 changed files with 20 additions and 0 deletions
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20
libs/vkd3d-shader/hlsl_codegen.c
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@@ -10442,6 +10442,7 @@ static void generate_vsir_scan_global_flags(struct hlsl_ctx *ctx,
const struct vkd3d_shader_version *version = &program->shader_version;
struct extern_resource *extern_resources;
unsigned int extern_resources_count, i;
struct hlsl_ir_var *var;
extern_resources = sm4_get_extern_resources(ctx, &extern_resources_count);
@@ -10462,6 +10463,25 @@ static void generate_vsir_scan_global_flags(struct hlsl_ctx *ctx,
sm4_free_extern_resources(extern_resources, extern_resources_count);
LIST_FOR_EACH_ENTRY(var, &entry_func->extern_vars, struct hlsl_ir_var, extern_entry)
{
const struct hlsl_type *type = var->data_type;
if (hlsl_type_is_patch_array(type))
type = var->data_type->e.array.type;
/* Note that it doesn't matter if the semantic is unused or doesn't
* generate a signature element (e.g. SV_DispatchThreadID). */
if ((var->is_input_semantic || var->is_output_semantic)
&& type->is_minimum_precision)
{
program->global_flags |= VKD3DSGF_ENABLE_MINIMUM_PRECISION;
break;
}
}
/* FIXME: We also need to check for minimum-precision uniforms and local
* variable arithmetic. */
if (entry_func->early_depth_test && vkd3d_shader_ver_ge(version, 5, 0))
program->global_flags |= VKD3DSGF_FORCE_EARLY_DEPTH_STENCIL;
}