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vkd3d-shader/hlsl: Correctly fold casts from double.

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This commit is contained in:
Giovanni Mascellani 2023-09-12 14:03:33 +02:00 committed by Alexandre Julliard
parent 49bbd98a04
commit c69562128a
Notes: Alexandre Julliard 2023-09-22 22:46:53 +02:00 
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/338
1 changed files with 27 additions and 2 deletions
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29
libs/vkd3d-shader/hlsl_constant_ops.c
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@ -88,6 +88,31 @@ static int32_t float_to_int(float x)
return x;
}
static uint32_t double_to_uint(double x)
{
if (isnan(x) || x <= 0)
return 0;
if (x >= 4294967296.0)
return UINT32_MAX;
return x;
}
static int32_t double_to_int(double x)
{
if (isnan(x))
return 0;
if (x <= -2147483648.0)
return INT32_MIN;
if (x >= 2147483648.0)
return INT32_MAX;
return x;
}
static bool fold_cast(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst,
const struct hlsl_type *dst_type, const struct hlsl_ir_constant *src)
{
@ -118,8 +143,8 @@ static bool fold_cast(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst,
break;
case HLSL_TYPE_DOUBLE:
u = src->value.u[k].d;
i = src->value.u[k].d;
u = double_to_uint(src->value.u[k].d);
i = double_to_int(src->value.u[k].d);
f = src->value.u[k].d;
d = src->value.u[k].d;
break;