1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 float2 ah; 6 float2 bh; 7 float2 af; 8 float2 bf; 9}; 10struct Inputs { 11}; 12struct Outputs { 13 float4 sk_FragColor [[color(0)]]; 14}; 15float cross_hh2h2(float2 a, float2 b) { 16 return a.x * b.y - a.y * b.x; 17} 18float cross_ff2f2(float2 a, float2 b) { 19 return a.x * b.y - a.y * b.x; 20} 21 22fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 23 Outputs _out; 24 (void)_out; 25 _out.sk_FragColor.x = cross_hh2h2(_uniforms.ah, _uniforms.bh); 26 _out.sk_FragColor.y = cross_ff2f2(_uniforms.af, _uniforms.bf); 27 return _out; 28} 29