vkd3d/tests/hlsl/inverse-trig.shader_test

% TPF does not define instructions for inverse trig; these intrinsics are
% decomposed into other instructions. FXC emits code which may vary wrt other
% implementations. DXIL defines intrinsics for inverse trig, to be implemented
% by the backend.

[pixel shader todo]
uniform float4 a;

float4 main() : sv_target
{
    return float4(acos(a.x), 0.0, 0.0, 0.0);
}

[test]
uniform 0 float4 -1.0 0.0 0.0 0.0
todo draw quad
probe all rgba (3.14159274, 0.0, 0.0, 0.0) 128

uniform 0 float4 -0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (2.094441441, 0.0, 0.0, 0.0) 256

uniform 0 float4 0.0 0.0 0.0 0.0
todo draw quad
probe all rgba (1.57072878, 0.0, 0.0, 0.0) 1024

uniform 0 float4 0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (1.04715133, 0.0, 0.0, 0.0) 512

uniform 0 float4 1.0 0.0 0.0 0.0
todo draw quad
probe all rgba (0.0, 0.0, 0.0, 0.0) 128

[pixel shader todo]
uniform float4 a;

float4 main() : sv_target
{
    float4 result = float4(asin(a.x), 0.0, 0.0, 0.0);
    // Quantize to cover implementation variations, which are quite large for asin().
    return round(result * 20000.0);
}

[test]
uniform 0 float4 -1.0 0.0 0.0 0.0
todo draw quad
probe all rgba (-31416.0, 0.0, 0.0, 0.0)

[require]
shader model < 6.0

[test]
uniform 0 float4 -0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (-10473.0, 0.0, 0.0, 0.0)

uniform 0 float4 0.0 0.0 0.0 0.0
todo draw quad
probe all rgba (1.0, 0.0, 0.0, 0.0)

uniform 0 float4 0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (10473.0, 0.0, 0.0, 0.0)

[require]
shader model >= 6.0

% We implement SM 6.0 inverse trig instructions using the native equivalents
% available in the backend. The values below are from the AMD Windows drivers,
% which are very close to those from Ubuntu's calculator app. Results from
% RADV are a bit lower than these, hence the large max ulp difference.
[test]
uniform 0 float4 -0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (-10472.0, 0.0, 0.0, 0.0) 4096

uniform 0 float4 0.0 0.0 0.0 0.0
todo draw quad
probe all rgba (0.0, 0.0, 0.0, 0.0)

uniform 0 float4 0.5 0.0 0.0 0.0
todo draw quad
probe all rgba (10472.0, 0.0, 0.0, 0.0) 4096

[require]
% reset requirements

[test]
uniform 0 float4 1.0 0.0 0.0 0.0
todo draw quad
probe all rgba (31416.0, 0.0, 0.0, 0.0)