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vkd3d-shader: Add constant folding for 'floor'.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-10-18 00:08:02 +02:00 committed by Alexandre Julliard
parent 634ec96b52
commit 4778d051df
Notes: Alexandre Julliard 2023-11-08 23:02:33 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Francisco Casas (@fcasas)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/417
2 changed files with 40 additions and 0 deletions
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30
libs/vkd3d-shader/hlsl_constant_ops.c
View File

@ -280,6 +280,32 @@ static bool fold_exp2(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst,
return true;
}
static bool fold_floor(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst,
const struct hlsl_type *dst_type, const struct hlsl_ir_constant *src)
{
enum hlsl_base_type type = dst_type->base_type;
unsigned int k;
assert(type == src->node.data_type->base_type);
for (k = 0; k < dst_type->dimx; ++k)
{
switch (type)
{
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
dst->u[k].f = floorf(src->value.u[k].f);
break;
default:
FIXME("Fold 'floor' for type %s.\n", debug_hlsl_type(ctx, dst_type));
return false;
}
}
return true;
}
static bool fold_fract(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst,
const struct hlsl_type *dst_type, const struct hlsl_ir_constant *src)
{
@ -1263,6 +1289,10 @@ bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr,
success = fold_exp2(ctx, &res, instr->data_type, arg1);
break;
case HLSL_OP1_FLOOR:
success = fold_floor(ctx, &res, instr->data_type, arg1);
break;
case HLSL_OP1_FRACT:
success = fold_fract(ctx, &res, instr->data_type, arg1);
break;

10
tests/hlsl/floor.shader_test
View File

@ -1,3 +1,13 @@
[pixel shader]
float4 main() : sv_target
{
return floor(float4(-0.5, 6.5, 7.5, 3.4));
}
[test]
draw quad
probe all rgba (-1.0, 6.0, 7.0, 3.0) 4
[pixel shader]
uniform float4 u;