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vkd3d-shader/hlsl: Do not generate infinities in SM1.

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Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Giovanni Mascellani 2022-04-22 12:24:57 +02:00 committed by Alexandre Julliard
parent 6b893b597b
commit c680b674d6
2 changed files with 9 additions and 1 deletions
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9
libs/vkd3d-shader/hlsl_constant_ops.c
View File

@ -18,6 +18,8 @@
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <math.h>
#include "hlsl.h"
static bool fold_cast(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst, struct hlsl_ir_constant *src)
@ -270,12 +272,17 @@ static bool fold_div(struct hlsl_ctx *ctx, struct hlsl_ir_constant *dst,
{
case HLSL_TYPE_FLOAT:
case HLSL_TYPE_HALF:
if (src2->value[k].f == 0)
if (ctx->profile->major_version >= 4 && src2->value[k].f == 0)
{
hlsl_warning(ctx, &dst->node.loc, VKD3D_SHADER_WARNING_HLSL_DIVISION_BY_ZERO,
"Floating point division by zero");
}
dst->value[k].f = src1->value[k].f / src2->value[k].f;
if (ctx->profile->major_version < 4 && isinf(dst->value[k].f))
{
hlsl_error(ctx, &dst->node.loc, VKD3D_SHADER_ERROR_HLSL_DIVISION_BY_ZERO,
"Infinities are not allowed by the shader model.");
}
break;
case HLSL_TYPE_DOUBLE:

1
tests/arithmetic-float.shader_test
View File

@ -25,6 +25,7 @@ todo draw quad
probe all rgba (5.0, 5.0, -5.0, 3.0)
[require]
% Infinities are not allowed in SM1
shader model >= 4.0
[pixel shader]