1#include <metal_stdlib> 2#include <simd/simd.h> 3#ifdef __clang__ 4#pragma clang diagnostic ignored "-Wall" 5#endif 6using namespace metal; 7 8struct sampler2D { 9 texture2d<half> tex; 10 sampler smp; 11}; 12half4 sample(sampler2D i, float2 p, float b=0) { return i.tex.sample(i.smp, p, bias(b)); } 13half4 sample(sampler2D i, float3 p, float b=0) { return i.tex.sample(i.smp, p.xy / p.z, bias(b)); } 14half4 sampleLod(sampler2D i, float2 p, float lod) { return i.tex.sample(i.smp, p, level(lod)); } 15half4 sampleLod(sampler2D i, float3 p, float lod) { 16 return i.tex.sample(i.smp, p.xy / p.z, level(lod)); 17} 18half4 sampleGrad(sampler2D i, float2 p, float2 dPdx, float2 dPdy) { 19 return i.tex.sample(i.smp, p, gradient2d(dPdx, dPdy)); 20} 21 22struct Inputs { 23}; 24struct Outputs { 25 half4 sk_FragColor [[color(0)]]; 26}; 27struct Globals { 28 sampler2D tex; 29}; 30fragment Outputs fragmentMain(Inputs _in [[stage_in]], texture2d<half> tex_Tex [[texture(0)]], sampler tex_Smplr [[sampler(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 31 Globals _globals{{tex_Tex, tex_Smplr}}; 32 (void)_globals; 33 Outputs _out; 34 (void)_out; 35 float4 a = float4(sample(_globals.tex, float2(0.0))); 36 float4 b = float4(sample(_globals.tex, float3(0.0))); 37 _out.sk_FragColor = half4(half2(a.xy), half2(b.zw)); 38 return _out; 39} 40