bgfx/3rdparty/glsl-optimizer/tests/fragment/z-collectshadows-outES3Metal.txt

#include <metal_stdlib>
using namespace metal;
struct xlatMtlShaderInput {
  float2 xlv_TEXCOORD0;
  float3 xlv_TEXCOORD1;
};
struct xlatMtlShaderOutput {
  half4 _fragData [[color(0)]];
};
struct xlatMtlShaderUniform {
  float4 _LightShadowData;
  float4 _LightSplitsFar;
  float4 _LightSplitsNear;
  float4x4 _View2Shadow;
  float4x4 _View2Shadow1;
  float4x4 _View2Shadow2;
  float4x4 _View2Shadow3;
  float4 _ZBufferParams;
};
fragment xlatMtlShaderOutput xlatMtlMain (xlatMtlShaderInput _mtl_i [[stage_in]], constant xlatMtlShaderUniform& _mtl_u [[buffer(0)]]
  ,   texture2d<half> _CameraDepthTexture [[texture(0)]], sampler _mtlsmp__CameraDepthTexture [[sampler(0)]]
  ,   texture2d<half> _ShadowMapTexture [[texture(1)]], sampler _mtlsmp__ShadowMapTexture [[sampler(1)]])
{
  xlatMtlShaderOutput _mtl_o;
  half4 tmpvar_1;
  float4 res_2;
  float depth_3;
  half4 tmpvar_4;
  tmpvar_4 = _CameraDepthTexture.sample(_mtlsmp__CameraDepthTexture, (float2)(_mtl_i.xlv_TEXCOORD0));
  depth_3 = float(tmpvar_4.x);
  float tmpvar_5;
  tmpvar_5 = (1.0/(((_mtl_u._ZBufferParams.x * depth_3) + _mtl_u._ZBufferParams.y)));
  depth_3 = tmpvar_5;
  float4 tmpvar_6;
  tmpvar_6.w = 1.0;
  tmpvar_6.xyz = (_mtl_i.xlv_TEXCOORD1 * tmpvar_5);
  half shadow_7;
  float4 weights_8;
  float4 far_9;
  float4 near_10;
  bool4 tmpvar_11;
  tmpvar_11 = bool4((tmpvar_6.zzzz >= _mtl_u._LightSplitsNear));
  half4 tmpvar_12;
  tmpvar_12 = half4(tmpvar_11);
  near_10 = float4(tmpvar_12);
  bool4 tmpvar_13;
  tmpvar_13 = bool4((tmpvar_6.zzzz < _mtl_u._LightSplitsFar));
  half4 tmpvar_14;
  tmpvar_14 = half4(tmpvar_13);
  far_9 = float4(tmpvar_14);
  weights_8 = (near_10 * far_9);
  float4 tmpvar_15;
  tmpvar_15.w = 1.0;
  tmpvar_15.xyz = (((
    ((_mtl_u._View2Shadow * tmpvar_6).xyz * weights_8.x)
   + 
    ((_mtl_u._View2Shadow1 * tmpvar_6).xyz * weights_8.y)
  ) + (
    (_mtl_u._View2Shadow2 * tmpvar_6)
  .xyz * weights_8.z)) + ((_mtl_u._View2Shadow3 * tmpvar_6).xyz * weights_8.w));
  half4 tmpvar_16;
  tmpvar_16 = _ShadowMapTexture.sample(_mtlsmp__ShadowMapTexture, (float2)(tmpvar_15.xy));
  float tmpvar_17;
  if (((float)tmpvar_16.x < tmpvar_15.z)) {
    tmpvar_17 = _mtl_u._LightShadowData.x;
  } else {
    tmpvar_17 = 1.0;
  };
  shadow_7 = half(tmpvar_17);
  res_2.x = float(shadow_7);
  res_2.y = 1.0;
  float2 enc_18;
  enc_18 = (float2(1.0, 255.0) * (1.0 - tmpvar_5));
  float2 tmpvar_19;
  tmpvar_19 = fract(enc_18);
  enc_18.y = tmpvar_19.y;
  enc_18.x = (tmpvar_19.x - (tmpvar_19.y * 0.00392157));
  res_2.zw = enc_18;
  tmpvar_1 = half4(res_2);
  _mtl_o._fragData = tmpvar_1;
  return _mtl_o;
}


// stats: 30 alu 2 tex 1 flow
// inputs: 2
//  #0: xlv_TEXCOORD0 (high float) 2x1 [-1]
//  #1: xlv_TEXCOORD1 (high float) 3x1 [-1]
// uniforms: 8 (total size: 320)
//  #0: _LightShadowData (high float) 4x1 [-1] loc 0
//  #1: _LightSplitsFar (high float) 4x1 [-1] loc 16
//  #2: _LightSplitsNear (high float) 4x1 [-1] loc 32
//  #3: _View2Shadow (high float) 4x4 [-1] loc 48
//  #4: _View2Shadow1 (high float) 4x4 [-1] loc 112
//  #5: _View2Shadow2 (high float) 4x4 [-1] loc 176
//  #6: _View2Shadow3 (high float) 4x4 [-1] loc 240
//  #7: _ZBufferParams (high float) 4x1 [-1] loc 304
// textures: 2
//  #0: _CameraDepthTexture (low 2d) 0x0 [-1] loc 0
//  #1: _ShadowMapTexture (low 2d) 0x0 [-1] loc 1