skia2/tests/sksl/shared/Functions.metal

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Metal
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#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Uniforms {
float4 colorGreen;
float4 colorRed;
};
struct Inputs {
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
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void bar(thread float& x);
void _skOutParamHelper0_bar(thread float& x) {
float _var0 = x;
bar(_var0);
x = _var0;
}
float foo(float2 v) {
return v.x * v.y;
}
void bar(thread float& x) {
float y[2];
y[0] = x;
y[1] = x * 2.0;
x = foo(float2(y[0], y[1]));
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Outputs _out;
(void)_out;
float x = 10.0;
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_skOutParamHelper0_bar(x);
_out.sk_FragColor = x == 200.0 ? _uniforms.colorGreen : _uniforms.colorRed;
return _out;
}