dawn-cmake/test/tint/builtins/gen/textureSampleLevel/979816.wgsl.expected.msl

#include <metal_stdlib>

using namespace metal;
struct ExternalTextureParams {
  /* 0x0000 */ uint numPlanes;
  /* 0x0004 */ float vr;
  /* 0x0008 */ float ug;
  /* 0x000c */ float vg;
  /* 0x0010 */ float ub;
};

float4 textureSampleExternal(texture2d<float, access::sample> plane0, texture2d<float, access::sample> plane1, sampler smp, float2 coord, ExternalTextureParams params) {
  if ((params.numPlanes == 1u)) {
    return plane0.sample(smp, coord, level(0.0f));
  }
  float const y = (plane0.sample(smp, coord, level(0.0f))[0] - 0.0625f);
  float2 const uv = (float4(plane1.sample(smp, coord, level(0.0f))).rg - 0.5f);
  float const u = uv[0];
  float const v = uv[1];
  float const r = ((1.164000034f * y) + (params.vr * v));
  float const g = (((1.164000034f * y) - (params.ug * u)) - (params.vg * v));
  float const b = ((1.164000034f * y) + (params.ub * u));
  return float4(r, g, b, 1.0f);
}

void textureSampleLevel_979816(texture2d<float, access::sample> tint_symbol_1, texture2d<float, access::sample> tint_symbol_2, sampler tint_symbol_3, const constant ExternalTextureParams* const tint_symbol_4) {
  float4 res = textureSampleExternal(tint_symbol_1, tint_symbol_2, tint_symbol_3, float2(), *(tint_symbol_4));
}

struct tint_symbol {
  float4 value [[position]];
};

float4 vertex_main_inner(texture2d<float, access::sample> tint_symbol_5, texture2d<float, access::sample> tint_symbol_6, sampler tint_symbol_7, const constant ExternalTextureParams* const tint_symbol_8) {
  textureSampleLevel_979816(tint_symbol_5, tint_symbol_6, tint_symbol_7, tint_symbol_8);
  return float4();
}

vertex tint_symbol vertex_main(texture2d<float, access::sample> tint_symbol_9 [[texture(0)]], texture2d<float, access::sample> tint_symbol_10 [[texture(1)]], sampler tint_symbol_11 [[sampler(0)]], const constant ExternalTextureParams* tint_symbol_12 [[buffer(2)]]) {
  float4 const inner_result = vertex_main_inner(tint_symbol_9, tint_symbol_10, tint_symbol_11, tint_symbol_12);
  tint_symbol wrapper_result = {};
  wrapper_result.value = inner_result;
  return wrapper_result;
}

fragment void fragment_main(texture2d<float, access::sample> tint_symbol_13 [[texture(0)]], texture2d<float, access::sample> tint_symbol_14 [[texture(1)]], sampler tint_symbol_15 [[sampler(0)]], const constant ExternalTextureParams* tint_symbol_16 [[buffer(2)]]) {
  textureSampleLevel_979816(tint_symbol_13, tint_symbol_14, tint_symbol_15, tint_symbol_16);
  return;
}

kernel void compute_main(texture2d<float, access::sample> tint_symbol_17 [[texture(0)]], texture2d<float, access::sample> tint_symbol_18 [[texture(1)]], sampler tint_symbol_19 [[sampler(0)]], const constant ExternalTextureParams* tint_symbol_20 [[buffer(2)]]) {
  textureSampleLevel_979816(tint_symbol_17, tint_symbol_18, tint_symbol_19, tint_symbol_20);
  return;
}