bgfx/3rdparty/glsl-optimizer/tests/fragment/zun-SSAO24-irES3.txt

#version 300 es
struct v2f_ao {
  highp vec4 pos;
  highp vec2 uv;
  highp vec2 uvr;
};
layout(location=0) out mediump vec4 _glesFragData[4];
uniform highp vec4 _ProjectionParams;
uniform highp vec2 _NoiseScale;
uniform highp vec4 _CameraDepthNormalsTexture_ST;
uniform sampler2D _CameraDepthNormalsTexture;
uniform sampler2D _RandomTexture;
uniform highp vec4 _Params;
in highp vec2 xlv_TEXCOORD0;
in highp vec2 xlv_TEXCOORD1;
float xll_saturate_f (
  in float x_1
)
{
  float tmpvar_2;
  tmpvar_2 = clamp (x_1, 0.0, 1.0);
  return tmpvar_2;
}

float DecodeFloatRG (
  in highp vec2 enc_3
)
{
  highp vec2 kDecodeDot_4;
  vec2 tmpvar_5;
  tmpvar_5 = vec2(1.0, 0.00392157);
  kDecodeDot_4 = tmpvar_5;
  highp float tmpvar_6;
  tmpvar_6 = dot (enc_3, kDecodeDot_4);
  return tmpvar_6;
}

vec3 DecodeViewNormalStereo (
  in highp vec4 enc4_7
)
{
  highp vec3 n_8;
  highp float g_9;
  highp vec3 nn_10;
  highp float kScale_11;
  float tmpvar_12;
  tmpvar_12 = 1.7777;
  kScale_11 = tmpvar_12;
  highp vec3 tmpvar_13;
  tmpvar_13.z = 0.0;
  tmpvar_13.x = (2.0 * kScale_11);
  tmpvar_13.y = (2.0 * kScale_11);
  highp vec3 tmpvar_14;
  tmpvar_14.z = 1.0;
  tmpvar_14.x = -(kScale_11);
  tmpvar_14.y = -(kScale_11);
  highp vec3 tmpvar_15;
  tmpvar_15 = ((enc4_7.xyz * tmpvar_13) + tmpvar_14);
  nn_10 = tmpvar_15;
  highp float tmpvar_16;
  tmpvar_16 = dot (nn_10.xyz, nn_10.xyz);
  highp float tmpvar_17;
  tmpvar_17 = (2.0 / tmpvar_16);
  g_9 = tmpvar_17;
  highp vec2 tmpvar_18;
  tmpvar_18 = (g_9 * nn_10.xy);
  n_8.xy = tmpvar_18.xy.xy;
  highp float tmpvar_19;
  tmpvar_19 = (g_9 - 1.0);
  n_8.z = vec3(tmpvar_19).z;
  return n_8;
}

void DecodeDepthNormal (
  in highp vec4 enc_20,
  out highp float depth_21,
  out highp vec3 normal_22
)
{
  highp float tmpvar_23;
  tmpvar_23 = DecodeFloatRG (enc_20.zw);
  highp float tmpvar_24;
  tmpvar_24 = tmpvar_23;
  depth_21 = tmpvar_24;
  highp vec3 tmpvar_25;
  tmpvar_25 = DecodeViewNormalStereo (enc_20);
  highp vec3 tmpvar_26;
  tmpvar_26 = tmpvar_25;
  normal_22 = tmpvar_26;
}

mediump float frag_ao (
  in v2f_ao i_27,
  in int sampleCount_28,
  in highp vec3 samples_29[8]
)
{
  int s_30;
  highp float occ_31;
  highp float scale_32;
  highp float depth_33;
  highp vec3 viewNorm_34;
  highp vec4 depthnormal_35;
  mediump vec3 randN_36;
  lowp vec4 tmpvar_37;
  tmpvar_37 = texture (_RandomTexture, i_27.uvr);
  lowp vec3 tmpvar_38;
  tmpvar_38 = ((tmpvar_37.xyz * 2.0) - 1.0);
  randN_36 = tmpvar_38;
  lowp vec4 tmpvar_39;
  tmpvar_39 = texture (_CameraDepthNormalsTexture, i_27.uv);
  lowp vec4 tmpvar_40;
  tmpvar_40 = tmpvar_39;
  depthnormal_35 = tmpvar_40;
  DecodeDepthNormal (depthnormal_35, depth_33, viewNorm_34);
  highp float tmpvar_41;
  tmpvar_41 = (depth_33 * _ProjectionParams.z);
  depth_33 = tmpvar_41;
  highp float tmpvar_42;
  tmpvar_42 = (_Params.x / depth_33);
  scale_32 = tmpvar_42;
  float tmpvar_43;
  tmpvar_43 = 0.0;
  occ_31 = tmpvar_43;
  int tmpvar_44;
  tmpvar_44 = 0;
  s_30 = tmpvar_44;
  while (true) {
    highp float zd_45;
    highp vec3 sampleN_46;
    highp float sampleD_47;
    highp vec4 sampleND_48;
    highp float sD_49;
    highp vec2 offset_50;
    mediump float flip_51;
    mediump vec3 randomDir_52;
    if (!((s_30 < sampleCount_28))) {
      break;
    };
    highp vec3 tmpvar_53;
    tmpvar_53 = reflect (samples_29[s_30], randN_36);
    highp vec3 tmpvar_54;
    tmpvar_54 = tmpvar_53;
    randomDir_52 = tmpvar_54;
    highp float tmpvar_55;
    tmpvar_55 = dot (viewNorm_34, randomDir_52);
    float tmpvar_56;
    if ((tmpvar_55 < 0.0)) {
      tmpvar_56 = 1.0;
    } else {
      tmpvar_56 = -(1.0);
    };
    float tmpvar_57;
    tmpvar_57 = tmpvar_56;
    flip_51 = tmpvar_57;
    mediump vec3 tmpvar_58;
    tmpvar_58 = (randomDir_52 * -(flip_51));
    randomDir_52 = tmpvar_58;
    highp vec3 tmpvar_59;
    tmpvar_59 = (randomDir_52 + (viewNorm_34 * 0.3));
    randomDir_52 = tmpvar_59;
    highp vec2 tmpvar_60;
    tmpvar_60 = (randomDir_52.xy * scale_32);
    offset_50 = tmpvar_60;
    highp float tmpvar_61;
    tmpvar_61 = (depth_33 - (randomDir_52.z * _Params.x));
    sD_49 = tmpvar_61;
    lowp vec4 tmpvar_62;
    tmpvar_62 = texture (_CameraDepthNormalsTexture, (i_27.uv + offset_50));
    lowp vec4 tmpvar_63;
    tmpvar_63 = tmpvar_62;
    sampleND_48 = tmpvar_63;
    DecodeDepthNormal (sampleND_48, sampleD_47, sampleN_46);
    highp float tmpvar_64;
    tmpvar_64 = (sampleD_47 * _ProjectionParams.z);
    sampleD_47 = tmpvar_64;
    float tmpvar_65;
    tmpvar_65 = xll_saturate_f ((sD_49 - sampleD_47));
    float tmpvar_66;
    tmpvar_66 = tmpvar_65;
    zd_45 = tmpvar_66;
    if ((zd_45 > _Params.y)) {
      highp float tmpvar_67;
      tmpvar_67 = pow ((1.0 - zd_45), _Params.z);
      highp float tmpvar_68;
      tmpvar_68 = (occ_31 + tmpvar_67);
      occ_31 = tmpvar_68;
    };
    int tmpvar_69;
    tmpvar_69 = (s_30 + 1);
    s_30 = tmpvar_69;
  };
  highp float tmpvar_70;
  tmpvar_70 = (occ_31 / float(sampleCount_28));
  occ_31 = tmpvar_70;
  return (1.0 - occ_31);
}

mediump vec4 frag (
  in v2f_ao i_71
)
{
  highp vec3 RAND_SAMPLES_72[8] = vec3[8](vec3(0.0130572, 0.587232, -0.119337), vec3(0.323078, 0.0220727, -0.418873), vec3(-0.310725, -0.191367, 0.0561369), vec3(-0.479646, 0.0939877, -0.580265), vec3(0.139999, -0.33577, 0.559679), vec3(-0.248458, 0.255532, 0.348944), vec3(0.18719, -0.702764, -0.231748), vec3(0.884915, 0.284208, 0.368524));
  vec3 tmpvar_73[8];
  tmpvar_73 = vec3[8](vec3(0.0130572, 0.587232, -0.119337), vec3(0.323078, 0.0220727, -0.418873), vec3(-0.310725, -0.191367, 0.0561369), vec3(-0.479646, 0.0939877, -0.580265), vec3(0.139999, -0.33577, 0.559679), vec3(-0.248458, 0.255532, 0.348944), vec3(0.18719, -0.702764, -0.231748), vec3(0.884915, 0.284208, 0.368524));
  RAND_SAMPLES_72 = tmpvar_73;
  mediump float tmpvar_74;
  tmpvar_74 = frag_ao (i_71, 8, vec3[8](vec3(0.0130572, 0.587232, -0.119337), vec3(0.323078, 0.0220727, -0.418873), vec3(-0.310725, -0.191367, 0.0561369), vec3(-0.479646, 0.0939877, -0.580265), vec3(0.139999, -0.33577, 0.559679), vec3(-0.248458, 0.255532, 0.348944), vec3(0.18719, -0.702764, -0.231748), vec3(0.884915, 0.284208, 0.368524)));
  mediump vec4 tmpvar_75;
  tmpvar_75 = vec4(tmpvar_74);
  return tmpvar_75;
}

void main ()
{
  v2f_ao xlt_i_76;
  mediump vec4 xl_retval_77;
  vec4 tmpvar_78;
  tmpvar_78 = vec4(0.0, 0.0, 0.0, 0.0);
  xlt_i_76.pos = tmpvar_78;
  highp vec2 tmpvar_79;
  tmpvar_79 = xlv_TEXCOORD0.xy;
  highp vec2 tmpvar_80;
  tmpvar_80 = tmpvar_79;
  xlt_i_76.uv = tmpvar_80;
  highp vec2 tmpvar_81;
  tmpvar_81 = xlv_TEXCOORD1.xy;
  highp vec2 tmpvar_82;
  tmpvar_82 = tmpvar_81;
  xlt_i_76.uvr = tmpvar_82;
  mediump vec4 tmpvar_83;
  tmpvar_83 = frag (xlt_i_76);
  mediump vec4 tmpvar_84;
  tmpvar_84 = tmpvar_83;
  xl_retval_77 = tmpvar_84;
  mediump vec4 tmpvar_85;
  tmpvar_85 = xl_retval_77.xyzw;
  mediump vec4 tmpvar_86;
  tmpvar_86 = tmpvar_85;
  _glesFragData[0] = tmpvar_86;
}