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tests: Test casting negative floats to int.

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Turns out we are not doing this correctly in SM1, because the rounding
should be to the number that is closer to zero and lower_casts_to_int()
doesn't do that.

A vertex shader test is added since in SM1 they must rely on the SLT
operation instead of the CMP operation.
This commit is contained in:
Francisco Casas 2025-01-14 20:54:19 -03:00 committed by Henri Verbeet
parent efd7f2e014
commit 4f7c117296
Notes: Henri Verbeet 2025-01-16 19:29:44 +01:00 
Approved-by: Elizabeth Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1339
1 changed files with 23 additions and 2 deletions
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25
tests/hlsl/cast-to-int.shader_test
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@ -9,9 +9,30 @@ float4 main() : sv_target
}
[test]
uniform 0 float4 10.3 11.5 12.8 13.1
uniform 0 float4 10.3 -11.6 12.8 13.1
draw quad
probe (0, 0) rgba (10, 11, 12, 0)
todo(sm<4) probe (0, 0) rgba(10, -11, 12, 0)
[vertex shader]
uniform float4 f;
void main(float4 pos : position, out float4 t1 : TEXCOORD1, out float4 out_pos : sv_position)
{
out_pos = pos;
t1 = (int4)f;
}
[pixel shader]
float4 main(float4 t1 : TEXCOORD1) : sv_target
{
return t1;
}
[test]
uniform 0 float4 -0.4 -0.7 -12.8 14.8
draw quad
todo(sm<4) probe (0, 0) rgba(0, 0, -12, 14)
[pixel shader todo(sm<4)]