| #include <metal_stdlib> |
| #include <simd/simd.h> |
| using namespace metal; |
| struct Uniforms { |
| half2 ah; |
| half2 bh; |
| float2 af; |
| float2 bf; |
| }; |
| struct Inputs { |
| }; |
| struct Outputs { |
| half4 sk_FragColor [[color(0)]]; |
| }; |
| half cross_length_2d_hh2h2(half2 a, half2 b) { |
| return a.x * b.y - a.y * b.x; |
| } |
| float cross_length_2d_ff2f2(float2 a, float2 b) { |
| return a.x * b.y - a.y * b.x; |
| } |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { |
| Outputs _out; |
| (void)_out; |
| _out.sk_FragColor.x = cross_length_2d_hh2h2(_uniforms.ah, _uniforms.bh); |
| _out.sk_FragColor.y = half(cross_length_2d_ff2f2(_uniforms.af, _uniforms.bf)); |
| return _out; |
| } |