[require]
shader model >= 4.0

[input layout]
0 r32g32b32a32 float texcoord

[vb 0]
0.0 1.0 0.0 1.0
1.0 0.0 0.0 1.0
0.0 0.0 1.0 1.0

[vertex shader]
void main(uint id : sv_vertexid, nointerpolation inout float4 t : texcoord, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[pixel shader]
float4 main(nointerpolation float4 t : texcoord) : sv_target
{
    return t;
}

[test]
draw triangle list 3
probe all rgba (0.0, 1.0, 0.0, 1.0)

[vertex shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[pixel shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

float4 main(ps_input input) : sv_target
{
    return input.t;
}

[test]
draw triangle list 3
probe all rgba (0.0, 1.0, 0.0, 1.0)

[vertex shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[pixel shader]
struct ps_input
{
    float4 t : texcoord;
};

float4 main(nointerpolation ps_input input) : sv_target
{
    return input.t;
}

[test]
draw triangle list 3
probe all rgba (0.0, 1.0, 0.0, 1.0)

[vertex shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[pixel shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

float4 main(centroid ps_input input) : sv_target
{
    return input.t;
}

[test]
draw triangle list 3
probe all rgba (0.0, 1.0, 0.0, 1.0)

[vertex shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[pixel shader]
struct ps_input
{
    centroid float4 t : texcoord;
};

float4 main(nointerpolation ps_input input) : sv_target
{
    return input.t;
}

[require]
shader model >= 4.0
shader model < 6.0

[test]
draw triangle list 3
probe all rgba (0.0, 1.0, 0.0, 1.0)

% Centroid for SM 6.
[require]
shader model >= 6.0

[test]
draw triangle list 3
probe (320,240) rgba (0.250390589, 0.499088615, 0.250520796, 1.0) 1

[require]
shader model >= 4.0


[vertex shader fail todo]
struct ps_input
{
    nointerpolation centroid float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}

[vertex shader]
struct ps_input
{
    nointerpolation float4 t : texcoord;
};

void main(uint id : sv_vertexid, inout centroid ps_input input, out float4 pos : sv_position)
{
    float2 coords = float2((id << 1) & 2, id & 2);
    pos = float4(coords * float2(2, -2) + float2(-1, 1), 0, 1);
}