[require]
% The ternary operator works differently in sm6. See sm6-ternary.shader_test.
shader model < 6.0


[pixel shader]
uniform float4 x;

float4 main() : sv_target
{
    return x.x ? x : x - 1;
}

[test]
uniform 0 float4 2.0 3.0 4.0 5.0
draw quad
probe (0, 0) rgba (2.0, 3.0, 4.0, 5.0)
uniform 0 float4 0.0 10.0 11.0 12.0
draw quad
probe (0, 0) rgba (-1.0, 9.0, 10.0, 11.0)


[pixel shader]
uniform float4 x;

float4 main() : sv_target
{
    float4 ret;

    ret.x = x.x ? x.x : 1;
    ret.y = x.y ? 2 : x.y;
    ret.z = ret.w = 0.0;
    return ret;
}

[test]
uniform 0 float4 1.1 3.0 4.0 5.0
draw quad
probe (0, 0) rgba (1.1, 2.0, 0.0, 0.0)


[pixel shader]
float4 f;

float4 main() : sv_target
{
    float f1 = 0.1, f2 = 0.2, f3;
    f3 = f.x ? (f1 = 0.5) + 0.2 : (f2 = 0.6);
    return float4(f1, f2, f3, 0.0);
}

[test]
uniform 0 float4 1.0 0.0 0.0 0.0
draw quad
probe (0, 0) rgba (0.5, 0.6, 0.7, 0.0)


[pixel shader]
float4 x, y, z;

float4 main() : sv_target
{
    return x ? y : z;
}

[test]
uniform 0 float4 0.0 1.0 0.0 -3.0
uniform 4 float4 1.0 2.0 3.0 4.0
uniform 8 float4 5.0 6.0 7.0 8.0
draw quad
probe (0, 0) rgba (5.0, 2.0, 7.0, 4.0)

[pixel shader]
int4 x, y, z;

float4 main() : sv_target
{
    return x ? y : z;
}

[test]
if(sm<4)  uniform 0 float4 0.0 1.0 0.0 -3.0
if(sm<4)  uniform 4 float4 1.0 2.0 3.0 4.0
if(sm<4)  uniform 8 float4 5.0 6.0 7.0 8.0
if(sm>=4) uniform 0 int4 0 1 0 -3
if(sm>=4) uniform 4 int4 1 2 3 4
if(sm>=4) uniform 8 int4 5 6 7 8
draw quad
probe (0, 0) f32(5.0, 2.0, 7.0, 4.0)

[pixel shader]
uint4 x, y, z;

float4 main() : sv_target
{
    return x ? y : z;
}

[test]
if(sm<4)  uniform 0 float4 0.0 1.0 0.0 3.0
if(sm<4)  uniform 4 float4 1.0 2.0 3.0 4.0
if(sm<4)  uniform 8 float4 5.0 6.0 7.0 8.0
if(sm>=4) uniform 0 uint4 0 1 0 3
if(sm>=4) uniform 4 uint4 1 2 3 4
if(sm>=4) uniform 8 uint4 5 6 7 8
draw quad
probe (0, 0) f32(5.0, 2.0, 7.0, 4.0)

% The usual type conversion is applied to the first and second expression, as
% long as they are numeric.

[pixel shader fail]

uniform float2x4 a;
uniform float3x2 b;

float4 main() : sv_target
{
    0 ? a : b;
    return 0;
}


[pixel shader]

static float3x3 a = {0, 1, 2, 3, 4, 5, 6, 7, 8};
static float2x2 b = {.1, .2, .3, .4};

float4 main() : sv_target
{
    return float4(1 ? a : b);
}

[test]
draw quad
probe (0, 0) rgba (0.0, 1.0, 3.0, 4.0)


[pixel shader]

static float3 a = {0, 1, 2};
static float4 b = {5, 6, 7, 8};

float4 main() : sv_target
{
    return float4(0 ? a : b, 1.0);
}

[test]
draw quad
probe (0, 0) rgba (5.0, 6.0, 7.0, 1.0)


% More restrictions are placed on the type of the first (condition) operand,
% relative to the common type computed from the other two (result). Either:
% * the class and dimensions must match exactly;
% * the condition operand is scalar;
% * the result operands are scalar;
% * one is a typeN and the other is a type1xN

[pixel shader fail]

uniform float4 cond;
uniform float2x2 a, b;

float4 main() : sv_target
{
    return float4(cond ? a : b);
}


[pixel shader fail]

uniform float2x2 cond;
uniform float4 a, b;

float4 main() : sv_target
{
    return float4(cond ? a : b);
}


[pixel shader]

static float2x2 cond = {1, 0, 0, 1};
static float2x2 a = {1, 2, 3, 4};
static float2x2 b = {5, 6, 7, 8};

float4 main() : sv_target
{
    return float4(cond ? a : b);
}

[test]
draw quad
probe (0, 0) rgba (1.0, 6.0, 7.0, 4.0)

[pixel shader]
static float4 cond = {1, 0, 0, 1};
uniform float4 a;

float4 main() : sv_target
{
    return cond ? a : a;
}

[test]
uniform 0 float4 1.0 2.0 3.0 4.0
draw quad
probe (0, 0) f32(1.0, 2.0, 3.0, 4.0)

[pixel shader]
uniform float4 a;

float4 main() : sv_target
{
    return float4(false ? a.x : a.y, true ? a.x : a.y, 0, 0);
}

[test]
uniform 0 float4 1.0 2.0 0.0 0.0
draw quad
probe (0, 0) f32(2.0, 1.0, 0.0, 0.0)

[pixel shader]
uniform float c;

float4 main() : sv_target
{
    bool cond = c >= 0;
    return float4(cond ? true : false, cond ? false : true, 0, 0);
}

[test]
uniform 0 float -1.0
draw quad
probe (0, 0) f32(0.0, 1.0, 0.0, 0.0)

[pixel shader]
uniform bool cond;
uniform float4 a, b;

float4 main() : sv_target
{
    return !cond ? a : b;
}

[test]
if(sm<4)  uniform 0 float 0.0
if(sm>=4) uniform 0 uint  0
uniform 4 float4 1.0 2.0 3.0 4.0
uniform 8 float4 5.0 6.0 7.0 8.0
draw quad
probe (0, 0) f32(1.0, 2.0, 3.0, 4.0)

[pixel shader]
uniform float4 a;

float4 main() : sv_target
{
    bool cond1 = a.x > 0, cond2 = a.x > 2;
    float4 ret;

    ret.x = cond1 ? (cond1 ? a.x : a.y) : a.z;
    ret.y = cond1 ? a.x : (cond1 ? a.y : a.z);
    ret.z = cond2 ? (cond2 ? a.x : a.y) : a.z;
    ret.w = cond2 ? a.x : (cond2 ? a.y : a.z);

    return ret;
}

[test]
uniform 0 float4 1.0 2.0 3.0 0.0
draw quad
probe (0, 0) f32(1.0, 1.0, 3.0, 3.0)

[pixel shader]
uniform float a;

float4 main() : sv_target
{
    bool cond1 = a > 0, cond2 = a > 2;
    float4 ret;

    ret.xy = cond1 ? (cond1 ? float2(0, 1) : float2(1, 0)) : float2(1, 1);
    ret.zw = cond2 ? float2(0, 2) : (cond2 ? float2(2, 0) : float2(2, 2));

    return ret;
}

[test]
uniform 0 float 1.0
draw quad
probe (0, 0) f32(0.0, 1.0, 2.0, 2.0)

[pixel shader]
uniform float4 a;

float4 main() : sv_target
{
    bool cond1 = a.x > 2, cond2 = a.x > 0, cond3 = a.y > 3;

    float b = cond1 ? a.x : a.y;
    float c = cond2 ? a.z : b;
    float d = cond3 ? a.w : c + 10;
    float e = cond1 ? a.x : d;

    return e;
}

[test]
uniform 0 float4 1.0 2.0 3.0 4.0
draw quad
probe (0, 0) f32(13.0, 13.0, 13.0, 13.0)

[pixel shader fail]

uniform float3 cond;
uniform float4 a, b;

float4 main() : sv_target
{
    (cond ? a : b);
    return 0;
}


[pixel shader fail]

uniform float4 cond;
uniform float4x1 a, b;

float4 main() : sv_target
{
    (cond ? a : b);
    return 0;
}


% As may be expected, this yields the type of the arguments, not the conditional.

[pixel shader]

static float4 cond = {1, 0, 0, 1};
static float1x4 a = {1, 2, 3, 4};
static float1x4 b = {5, 6, 7, 8};

float4 main() : sv_target
{
    return (cond ? a : b)[0];
}

[test]
draw quad
probe (0, 0) rgba (1.0, 6.0, 7.0, 4.0)


[pixel shader]

static float1x4 cond = {1, 0, 0, 1};
static float4 a = {1, 2, 3, 4};
static float4 b = {5, 6, 7, 8};

float4 main() : sv_target
{
    return (cond ? a : b)[0];
}

[test]
draw quad
probe (0, 0) rgba (1.0, 1.0, 1.0, 1.0)


[pixel shader fail]

uniform float1x4 cond;
uniform float4 a, b;

float4 main() : sv_target
{
    return (cond ? a : b)[0][0];
}


[pixel shader]

static float1 cond = {0};
static float1x1 a = {2};
static float1x1 b = {3};

float4 main() : sv_target
{
    return (cond ? a : b)[0][0];
}

[test]
draw quad
probe (0, 0) rgba (3.0, 3.0, 3.0, 3.0)


[pixel shader]

static float1x1 cond = {1};
static float1 a = {2};
static float1 b = {3};

float4 main() : sv_target
{
    return (cond ? a : b)[0];
}

[test]
draw quad
probe (0, 0) rgba (2.0, 2.0, 2.0, 2.0)


[pixel shader fail]

static float1x1 cond = {1};
static float1 a = {2};
static float1 b = {3};

float4 main() : sv_target
{
    return (cond ? a : b)[0][0];
}


[pixel shader]

uniform float cond;
uniform float4 a, b;

float4 main() : sv_target
{
    return float4(cond ? a : b);
}

[test]
uniform 0 float4 1.0 0.0 0.0 0.0
uniform 4 float4 1.0 2.0 3.0 4.0
uniform 8 float4 5.0 6.0 7.0 8.0
draw quad
probe (0, 0) rgba (1.0, 2.0, 3.0, 4.0)


[pixel shader]

// "scalar" can mean any 1-component numeric type.
static float1x1 cond = {0};
static float4 a = {1, 2, 3, 4};
static float4 b = {5, 6, 7, 8};

float4 main() : sv_target
{
    return float4(cond ? a : b);
}

[test]
draw quad
probe (0, 0) rgba (5.0, 6.0, 7.0, 8.0)


[pixel shader]

uniform float4 cond;
uniform float4 a, b;

float4 main() : sv_target
{
    return float4(cond ? a.x : b.x);
}

[test]
uniform 0 float4 1.0 0.0 1.0 0.0
uniform 4 float4 1.0 2.0 3.0 4.0
uniform 8 float4 5.0 6.0 7.0 8.0
draw quad
probe (0, 0) rgba (1.0, 5.0, 1.0, 5.0)


[pixel shader]

// "scalar" can mean any 1-component numeric type.
static float4 cond = {1, 0, 0, 1};
static float1x1 a = {2};
static float1x1 b = {3};

float4 main() : sv_target
{
    return float4(cond ? a : b);
}

[test]
draw quad
probe (0, 0) rgba (2.0, 3.0, 3.0, 2.0)


% Objects can be used, but their types have to be identical.

[pixel shader]
Texture2D t;

float4 main() : sv_target
{
    Texture2D tmp = 0 ? t : t;
    return 0;
}


[pixel shader fail todo]
Texture2D t;
float4 f;

float4 main() : sv_target
{
    f ? t : t;
    return 0;
}


[pixel shader fail]
Texture2D t;
Texture3D u;

float4 main() : sv_target
{
    0 ? t : u;
    return 0;
}


% Of course objects cannot be used as the condition.

[pixel shader fail]
Texture2D t;

float4 main() : sv_target
{
    t ? 0 : 1;
    return 0;
}