vkd3d/tests/hlsl-lerp.shader_test
Francisco Casas 86c35fc79d tests: Test for common type conversion for element-wise intrinsics.
Some intrinsics have different rules for the allowed data types than
expressions:

- Vectors and matrices at the same time are not allowed, regardless of
  their dimensions. Even if they have the same number of components.

- Any combination of matrices is always allowed, even those when no
  matrix fits inside another, e.g.:
  float2x3 is compatible with float3x2, resulting in float 2x2.
  The common data type is the min on each dimension.

This is the case for max, pow, ldexp, clamp and smoothstep; which suggest that
it is the case for all intrinsics where the operation is applied element-wise.

Tests for mul() are also added as a counter-example where the operation
is not element-wise.
2023-01-11 16:02:53 +01:00

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[pixel shader]
uniform float4 x;
uniform float4 y;
uniform float4 s;
float4 main() : SV_TARGET
{
return lerp(x, y, s);
}
[test]
uniform 0 float4 2.0 3.0 4.0 5.0
uniform 4 float4 0.0 -10.0 10.0 100.0
uniform 8 float4 0.0 1.0 -1.0 0.75
draw quad
probe all rgba (2.0, -10.0, -2.0, 76.25)
[require]
shader model >= 4.0
[pixel shader]
uniform int4 x;
uniform int4 y;
uniform int4 s;
float4 main() : SV_TARGET
{
return lerp(x, y, s);
}
[test]
uniform 0 int4 2 3 4 0
uniform 4 int4 0 -10 10 1000000
uniform 8 int4 0 1 -1 1000000
draw quad
probe all rgba (2.0, -10.0, -2.0, 1e12)
[pixel shader todo]
float4 main() : sv_target
{
float3x2 a = {6, 5, 4, 3, 2, 1};
float2x3 b = {1, 2, 3, 4.2, 5.2, 6.2};
float3x4 c = 2.4;
float2x2 r = lerp(a, b, c);
return float4(r);
}
[test]
todo draw quad
todo probe all rgba (-6.0, -2.2, 4.48, 8.28)
[pixel shader fail todo]
float4 main() : sv_target
{
float2x2 a = {0, 1, 2, 3};
float2x2 b = {1, 2, 3, 4};
float4 c = {0.5, 0.5, 0.5, 0.5};
lerp(a, b, c);
return 0;
}