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vkd3d-shader/hlsl: Allow accounting for interpolation mode when allocating semantics.

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For now this has no effect since semantics are allocated with reg_size
4, but will have effect when optimizing interstage signatures.
This commit is contained in:
Francisco Casas
2024-09-25 13:46:08 -03:00
committed by Henri Verbeet
parent b65f5fb069
commit 7fd6c29ee8
Notes: Henri Verbeet 2024-10-22 20:54:15 +02:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1193
3 changed files with 41 additions and 35 deletions
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40
libs/vkd3d-shader/hlsl_codegen.c
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@@ -5190,6 +5190,36 @@ uint32_t allocate_temp_registers(struct hlsl_ctx *ctx, struct hlsl_ir_function_d
return allocator.reg_count;
}
enum vkd3d_shader_interpolation_mode sm4_get_interpolation_mode(struct hlsl_type *type, unsigned int storage_modifiers)
{
unsigned int i;
static const struct
{
unsigned int modifiers;
enum vkd3d_shader_interpolation_mode mode;
}
modes[] =
{
{HLSL_STORAGE_CENTROID | HLSL_STORAGE_NOPERSPECTIVE, VKD3DSIM_LINEAR_NOPERSPECTIVE_CENTROID},
{HLSL_STORAGE_NOPERSPECTIVE, VKD3DSIM_LINEAR_NOPERSPECTIVE},
{HLSL_STORAGE_CENTROID, VKD3DSIM_LINEAR_CENTROID},
{HLSL_STORAGE_CENTROID | HLSL_STORAGE_LINEAR, VKD3DSIM_LINEAR_CENTROID},
};
if ((storage_modifiers & HLSL_STORAGE_NOINTERPOLATION)
|| base_type_get_semantic_equivalent(type->e.numeric.type) == HLSL_TYPE_UINT)
return VKD3DSIM_CONSTANT;
for (i = 0; i < ARRAY_SIZE(modes); ++i)
{
if ((storage_modifiers & modes[i].modifiers) == modes[i].modifiers)
return modes[i].mode;
}
return VKD3DSIM_LINEAR;
}
static void allocate_semantic_register(struct hlsl_ctx *ctx, struct hlsl_ir_var *var,
struct register_allocator *allocator, bool output, bool is_patch_constant_func)
{
@@ -5259,7 +5289,10 @@ static void allocate_semantic_register(struct hlsl_ctx *ctx, struct hlsl_ir_var
}
else
{
var->regs[HLSL_REGSET_NUMERIC] = allocate_register(ctx, allocator, 1, UINT_MAX, 4, var->data_type->dimx, 0);
int mode = (ctx->profile->major_version < 4)
? 0 : sm4_get_interpolation_mode(var->data_type, var->storage_modifiers);
var->regs[HLSL_REGSET_NUMERIC] = allocate_register(ctx, allocator, 1, UINT_MAX, 4, var->data_type->dimx, mode);
TRACE("Allocated %s to %s.\n", var->name, debug_register(output ? 'o' : 'v',
var->regs[HLSL_REGSET_NUMERIC], var->data_type));
@@ -6328,16 +6361,15 @@ static void generate_vsir_signature_entry(struct hlsl_ctx *ctx, struct vsir_prog
if (sm4_register_from_semantic_name(&program->shader_version, var->semantic.name, output, &type, &has_idx))
{
register_index = has_idx ? var->semantic.index : ~0u;
mask = (1u << var->data_type->dimx) - 1;
}
else
{
VKD3D_ASSERT(var->regs[HLSL_REGSET_NUMERIC].allocated);
register_index = var->regs[HLSL_REGSET_NUMERIC].id;
mask = var->regs[HLSL_REGSET_NUMERIC].writemask;
}
/* NOTE: remember to change this to the actually allocated mask once
* we start optimizing interstage signatures. */
mask = (1u << var->data_type->dimx) - 1;
use_mask = mask; /* FIXME: retrieve use mask accurately. */
switch (var->data_type->e.numeric.type)