vkd3d/tests/hlsl/trunc.shader_test
Conor McCarthy 57280673e5 tests/shader-runner: Test shaders with dxcompiler.
The location of dxcompiler should be set during configuration with
'DXCOMPILER_LIBS=-L/path/to/dxcompiler', and then at runtime with
LD_LIBRARY_PATH, WINEPATH or PATH as applicable.

A new 'fail(sm<6)' decoration is needed on many shader declarations
because dxcompiler succeeds on many shaders which fail with fxc. The
opposite case is less common and is flagged with 'fail(sm>=6)'. A few
tests cause dxcompiler to crash or hang, so these are avoided using
[require], which now skips tests until reset instead of exiting. Also,
'todo(sm<6)' and 'todo(sm>=6)' are used to separate checking of results.
2023-10-11 22:21:14 +02:00

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[pixel shader]
uniform float4 u;
float4 main() : sv_target
{
return trunc(u);
}
[test]
uniform 0 float4 -0.5 6.5 7.5 3.4
todo(sm>=6) draw quad
probe all rgba (0.0, 6.0, 7.0, 3.0)
uniform 0 float4 -1.5 6.5 7.5 3.4
todo(sm>=6) draw quad
probe all rgba (-1.0, 6.0, 7.0, 3.0)
[pixel shader]
uniform float4 u;
float4 main() : sv_target
{
float a = trunc(u.r);
int2 b = trunc(u.gb);
float4 res = float4(b, a, u.a);
return trunc(res);
}
[test]
uniform 0 float4 -0.5 6.5 7.5 3.4
todo(sm>=6) draw quad
probe all rgba (6.0, 7.0, 0.0, 3.0)
[require]
shader model >= 4.0
[pixel shader]
uniform int4 u;
float4 main() : sv_target
{
float a = trunc(u.r);
int2 b = trunc(u.gb);
float4 res = float4(b, a, u.a);
return trunc(res);
}
[test]
uniform 0 int4 -1 6 7 3
todo(sm>=6) draw quad
probe all rgba (6.0, 7.0, -1.0, 3.0)