[require]
shader model >= 5.0

% UAVs are implicitly allocated starting from the highest render target slot.
% They cannot overlap render target slots, and also cannot be allocated any
% lower than the highest render target.
% This ceases to be true with shader model 5.1.

[rtv 1]
format r32g32b32a32 float
size (2d, 640, 480)

[pixel shader]
struct s
{
    float3 a;
};

RWBuffer<float4> u : register(u2);
RWBuffer<float> u1;
RWBuffer<float2x2> u2;
RWBuffer<struct s> u3;

float4 main() : sv_target1
{
    u[0] = float4(11.1, 12.2, 13.3, 14.4);
    return 0;
}

[pixel shader]
struct s
{
    float3 a;
};

RasterizerOrderedBuffer<float4> u : register(u2);
RasterizerOrderedBuffer<float> u1;
RasterizerOrderedBuffer<float2x2> u2;
RasterizerOrderedBuffer<struct s> u3;

float4 main() : sv_target1
{
    u[0] = float4(11.1, 12.2, 13.3, 14.4);
    return 0;
}

% Type size is too wide
[pixel shader fail]
struct s
{
    float3 a;
    float2 b;
};
RWBuffer<struct s> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail(sm<6) todo]
RWBuffer<double3> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader]
RWBuffer<double2> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail]
struct s
{
    float3 a;
    float2 b;
};
RasterizerOrderedBuffer<struct s> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail(sm<6) todo]
RasterizerOrderedBuffer<double3> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader]
RasterizerOrderedBuffer<double2> u;

float4 main() : sv_target1
{
    return 0;
}

% Array type
[pixel shader fail(sm<6)]
typedef float arr[2];
RWBuffer<arr> u;

float4 main() : sv_target1
{
    return 0;
}

% Object types
[pixel shader fail(sm<6)]
RWBuffer<Texture2D> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail]
struct s
{
    Texture2D t;
};
RWBuffer<struct s> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail(sm<6)]
typedef float arr[2];
RasterizerOrderedBuffer<arr> u;

float4 main() : sv_target1
{
    return 0;
}

% Object types
[pixel shader fail(sm<6)]
RasterizerOrderedBuffer<Texture2D> u;

float4 main() : sv_target1
{
    return 0;
}

[pixel shader fail]
struct s
{
    Texture2D t;
};
RasterizerOrderedBuffer<struct s> u;

float4 main() : sv_target1
{
    return 0;
}

[uav 1]
format r32g32b32a32 sint
size (buffer, 2)
1 2 3 4 5 6 7 8

[pixel shader]
RWBuffer<int4> u : register(u1);

float4 main() : sv_target
{
    u[0] = int4(11, -12, 13, -14);
    u[1] = int4(-15, 16, -17, 18);
    return 0;
}

[test]
draw quad
probe uav 1 (0) rgbai (11, -12, 13, -14)
probe uav 1 (1) rgbai (-15, 16, -17, 18)

[uav 2]
size (buffer, 1)
0.1 0.2 0.3 0.4

[pixel shader]
RWBuffer<float4> u : register(u2);

float4 main() : sv_target1
{
    u[0] = float4(11.1, 12.2, 13.3, 14.4);
    return 0;
}

[test]
draw quad
probe uav 2 (0) rgba (11.1, 12.2, 13.3, 14.4)