vkd3d/tests/hlsl-vector-indexing.shader_test
Francisco Casas 524029a062 tests: Test using single-component swizzles as indexes.
Vectors cannot be used as array indexes, however, single-component
swizzles (such as vec.x) can be used.

This suggests that single-component swizzles should actually be
scalars and not vectors of dimx = 1.

It is worth noting that the use of single-component swizzles on scalars
should still be allowed.
2023-01-26 21:52:16 +01:00

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[pixel shader]
float4 main() : SV_TARGET
{
float4 color;
color[0] = 0.020;
color[1] = 0.245;
color[2] = 0.351;
color[3] = 1.0;
return color;
}
[test]
draw quad
probe all rgba (0.02, 0.245, 0.351, 1.0)
[pixel shader]
uniform float4 m;
float4 main() : SV_TARGET
{
return float4(m[0], m[1], m[1], m[2]);
}
[test]
uniform 0 float4 1.0 2.0 3.0 4.0
draw quad
probe all rgba (1.0, 2.0, 2.0, 3.0)
[pixel shader fail]
float4 main() : SV_TARGET
{
float4 vec = {0, 1, 2, 3};
int1 idx = {3};
return vec[idx];
}
[pixel shader todo]
float4 main() : SV_TARGET
{
float4 vec = {0, 1, 2, 3};
int2 idx = {1, 2};
return vec[idx.y];
}
[test]
todo draw quad
todo probe all rgba (2.0, 2.0, 2.0, 2.0)