skia2/tests/sksl/shared/ComplexDelete.metal

#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
    float4x4 colorXform;
};
struct Inputs {
};
struct Outputs {
    half4 sk_FragColor [[color(0)]];
};
struct Globals {
    texture2d<half> s;
    sampler sSmplr;
};

thread bool operator==(const float4x4 left, const float4x4 right);
thread bool operator!=(const float4x4 left, const float4x4 right);
thread bool operator==(const float4x4 left, const float4x4 right) {
    return all(left[0] == right[0]) &&
           all(left[1] == right[1]) &&
           all(left[2] == right[2]) &&
           all(left[3] == right[3]);
}
thread bool operator!=(const float4x4 left, const float4x4 right) {
    return !(left == right);
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], texture2d<half> s[[texture(0)]], sampler sSmplr[[sampler(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
    Globals _globals{s, sSmplr};
    (void)_globals;
    Outputs _out;
    (void)_out;
    float4 tmpColor;
    _out.sk_FragColor = (tmpColor = float4(_globals.s.sample(_globals.sSmplr, float2(1.0))), half4(_uniforms.colorXform != float4x4(1.0) ? float4(clamp((_uniforms.colorXform * float4(tmpColor.xyz, 1.0)).xyz, 0.0, tmpColor.w), tmpColor.w) : tmpColor));
    return _out;
}