bgfx/3rdparty/glsl-optimizer/tests/fragment/z-fxaa-preset3-ir.txt

#extension GL_ARB_shader_texture_lod : enable
varying vec2 xlv_TEXCOORD0;
uniform vec4 _MainTex_TexelSize;
uniform sampler2D _MainTex;
vec4 xll_tex2Dlod (
  in sampler2D s_1,
  in vec4 coord_2
)
{
  vec4 tmpvar_3;
  tmpvar_3 = texture2DLod (s_1, coord_2.xy, coord_2.w);
  return tmpvar_3;
}

vec4 FxaaTexOff (
  in sampler2D tex_4,
  in vec2 pos_5,
  in vec2 off_6,
  in vec2 rcpFrame_7
)
{
  vec4 tmpvar_8;
  tmpvar_8.zw = vec2(0.0, 0.0);
  tmpvar_8.xy = (pos_5.xy + (off_6 * rcpFrame_7)).xy;
  vec4 tmpvar_9;
  tmpvar_9 = xll_tex2Dlod (tex_4, tmpvar_8);
  return tmpvar_9;
}

vec4 FxaaTexLod0 (
  in sampler2D tex_10,
  in vec2 pos_11
)
{
  vec4 tmpvar_12;
  tmpvar_12.zw = vec2(0.0, 0.0);
  tmpvar_12.xy = pos_11.xy.xy;
  vec4 tmpvar_13;
  tmpvar_13 = xll_tex2Dlod (tex_10, tmpvar_12);
  return tmpvar_13;
}

float FxaaLuma (
  in vec3 rgb_14
)
{
  return ((rgb_14.y * 1.96321) + rgb_14.x);
}

vec3 FxaaLerp3 (
  in vec3 a_15,
  in vec3 b_16,
  in float amountOfA_17
)
{
  vec3 tmpvar_18;
  tmpvar_18.x = -(amountOfA_17);
  tmpvar_18.y = -(amountOfA_17);
  tmpvar_18.z = -(amountOfA_17);
  vec3 tmpvar_19;
  tmpvar_19.x = amountOfA_17;
  tmpvar_19.y = amountOfA_17;
  tmpvar_19.z = amountOfA_17;
  return ((tmpvar_18 * b_16) + ((a_15 * tmpvar_19) + b_16));
}

vec3 FxaaFilterReturn (
  in vec3 rgb_20
)
{
  return rgb_20;
}

vec3 FxaaPixelShader (
  in vec2 pos_21,
  in sampler2D tex_22,
  in vec2 rcpFrame_23
)
{
  vec3 rgbF_24;
  float subPixelOffset_25;
  float spanLength_26;
  bool directionN_27;
  float dstP_28;
  float dstN_29;
  int i_30;
  bool doneP_31;
  bool doneN_32;
  float lumaEndP_33;
  float lumaEndN_34;
  vec2 offNP_35;
  vec2 posP_36;
  vec2 posN_37;
  bool pairN_38;
  float gradientS_39;
  float gradientN_40;
  float lengthSign_41;
  bool horzSpan_42;
  float edgeHorz_43;
  float edgeVert_44;
  float lumaSE_45;
  float lumaSW_46;
  float lumaNE_47;
  float lumaNW_48;
  vec3 rgbSE_49;
  vec3 rgbSW_50;
  vec3 rgbNE_51;
  vec3 rgbNW_52;
  float blendL_53;
  float rangeL_54;
  float lumaL_55;
  vec3 rgbL_56;
  float range_57;
  float rangeMax_58;
  float rangeMin_59;
  float lumaS_60;
  float lumaE_61;
  float lumaM_62;
  float lumaW_63;
  float lumaN_64;
  vec3 rgbS_65;
  vec3 rgbE_66;
  vec3 rgbM_67;
  vec3 rgbW_68;
  vec3 rgbN_69;
  bool tmpvar_70;
  tmpvar_70 = bool(0);
  doneN_32 = tmpvar_70;
  bool tmpvar_71;
  tmpvar_71 = bool(0);
  doneP_31 = tmpvar_71;
  int tmpvar_72;
  tmpvar_72 = 0;
  i_30 = tmpvar_72;
  vec4 tmpvar_73;
  tmpvar_73 = FxaaTexOff (tex_22, pos_21.xy, vec2(0.0, -1.0), rcpFrame_23);
  vec3 tmpvar_74;
  tmpvar_74 = tmpvar_73.xyz;
  rgbN_69 = tmpvar_74;
  vec4 tmpvar_75;
  tmpvar_75 = FxaaTexOff (tex_22, pos_21.xy, vec2(-1.0, 0.0), rcpFrame_23);
  vec3 tmpvar_76;
  tmpvar_76 = tmpvar_75.xyz;
  rgbW_68 = tmpvar_76;
  vec4 tmpvar_77;
  tmpvar_77 = FxaaTexOff (tex_22, pos_21.xy, vec2(0.0, 0.0), rcpFrame_23);
  vec3 tmpvar_78;
  tmpvar_78 = tmpvar_77.xyz;
  rgbM_67 = tmpvar_78;
  vec4 tmpvar_79;
  tmpvar_79 = FxaaTexOff (tex_22, pos_21.xy, vec2(1.0, 0.0), rcpFrame_23);
  vec3 tmpvar_80;
  tmpvar_80 = tmpvar_79.xyz;
  rgbE_66 = tmpvar_80;
  vec4 tmpvar_81;
  tmpvar_81 = FxaaTexOff (tex_22, pos_21.xy, vec2(0.0, 1.0), rcpFrame_23);
  vec3 tmpvar_82;
  tmpvar_82 = tmpvar_81.xyz;
  rgbS_65 = tmpvar_82;
  float tmpvar_83;
  tmpvar_83 = FxaaLuma (rgbN_69);
  float tmpvar_84;
  tmpvar_84 = tmpvar_83;
  lumaN_64 = tmpvar_84;
  float tmpvar_85;
  tmpvar_85 = FxaaLuma (rgbW_68);
  float tmpvar_86;
  tmpvar_86 = tmpvar_85;
  lumaW_63 = tmpvar_86;
  float tmpvar_87;
  tmpvar_87 = FxaaLuma (rgbM_67);
  float tmpvar_88;
  tmpvar_88 = tmpvar_87;
  lumaM_62 = tmpvar_88;
  float tmpvar_89;
  tmpvar_89 = FxaaLuma (rgbE_66);
  float tmpvar_90;
  tmpvar_90 = tmpvar_89;
  lumaE_61 = tmpvar_90;
  float tmpvar_91;
  tmpvar_91 = FxaaLuma (rgbS_65);
  float tmpvar_92;
  tmpvar_92 = tmpvar_91;
  lumaS_60 = tmpvar_92;
  float tmpvar_93;
  tmpvar_93 = min (lumaN_64, lumaW_63);
  float tmpvar_94;
  tmpvar_94 = min (lumaS_60, lumaE_61);
  float tmpvar_95;
  tmpvar_95 = min (tmpvar_93, tmpvar_94);
  float tmpvar_96;
  tmpvar_96 = min (lumaM_62, tmpvar_95);
  float tmpvar_97;
  tmpvar_97 = tmpvar_96;
  rangeMin_59 = tmpvar_97;
  float tmpvar_98;
  tmpvar_98 = max (lumaN_64, lumaW_63);
  float tmpvar_99;
  tmpvar_99 = max (lumaS_60, lumaE_61);
  float tmpvar_100;
  tmpvar_100 = max (tmpvar_98, tmpvar_99);
  float tmpvar_101;
  tmpvar_101 = max (lumaM_62, tmpvar_100);
  float tmpvar_102;
  tmpvar_102 = tmpvar_101;
  rangeMax_58 = tmpvar_102;
  float tmpvar_103;
  tmpvar_103 = (rangeMax_58 - rangeMin_59);
  range_57 = tmpvar_103;
  float tmpvar_104;
  tmpvar_104 = max (0.0416667, (rangeMax_58 * 0.125));
  if ((range_57 < tmpvar_104)) {
    vec3 tmpvar_105;
    tmpvar_105 = FxaaFilterReturn (rgbM_67);
    return tmpvar_105;
  };
  vec3 tmpvar_106;
  tmpvar_106 = ((((rgbN_69 + rgbW_68) + rgbM_67) + rgbE_66) + rgbS_65);
  rgbL_56 = tmpvar_106;
  float tmpvar_107;
  tmpvar_107 = ((((lumaN_64 + lumaW_63) + lumaE_61) + lumaS_60) * 0.25);
  lumaL_55 = tmpvar_107;
  float tmpvar_108;
  tmpvar_108 = abs ((lumaL_55 - lumaM_62));
  float tmpvar_109;
  tmpvar_109 = tmpvar_108;
  rangeL_54 = tmpvar_109;
  float tmpvar_110;
  tmpvar_110 = max (0.0, ((rangeL_54 / range_57) - 0.25));
  float tmpvar_111;
  tmpvar_111 = (tmpvar_110 * 1.33333);
  blendL_53 = tmpvar_111;
  float tmpvar_112;
  tmpvar_112 = min (0.75, blendL_53);
  float tmpvar_113;
  tmpvar_113 = tmpvar_112;
  blendL_53 = tmpvar_113;
  vec4 tmpvar_114;
  tmpvar_114 = FxaaTexOff (tex_22, pos_21.xy, vec2(-1.0, -1.0), rcpFrame_23);
  vec3 tmpvar_115;
  tmpvar_115 = tmpvar_114.xyz;
  rgbNW_52 = tmpvar_115;
  vec4 tmpvar_116;
  tmpvar_116 = FxaaTexOff (tex_22, pos_21.xy, vec2(1.0, -1.0), rcpFrame_23);
  vec3 tmpvar_117;
  tmpvar_117 = tmpvar_116.xyz;
  rgbNE_51 = tmpvar_117;
  vec4 tmpvar_118;
  tmpvar_118 = FxaaTexOff (tex_22, pos_21.xy, vec2(-1.0, 1.0), rcpFrame_23);
  vec3 tmpvar_119;
  tmpvar_119 = tmpvar_118.xyz;
  rgbSW_50 = tmpvar_119;
  vec4 tmpvar_120;
  tmpvar_120 = FxaaTexOff (tex_22, pos_21.xy, vec2(1.0, 1.0), rcpFrame_23);
  vec3 tmpvar_121;
  tmpvar_121 = tmpvar_120.xyz;
  rgbSE_49 = tmpvar_121;
  vec3 tmpvar_122;
  tmpvar_122 = (rgbL_56 + (((rgbNW_52 + rgbNE_51) + rgbSW_50) + rgbSE_49));
  rgbL_56 = tmpvar_122;
  vec3 tmpvar_123;
  tmpvar_123 = (rgbL_56 * vec3(0.111111, 0.111111, 0.111111));
  rgbL_56 = tmpvar_123;
  float tmpvar_124;
  tmpvar_124 = FxaaLuma (rgbNW_52);
  float tmpvar_125;
  tmpvar_125 = tmpvar_124;
  lumaNW_48 = tmpvar_125;
  float tmpvar_126;
  tmpvar_126 = FxaaLuma (rgbNE_51);
  float tmpvar_127;
  tmpvar_127 = tmpvar_126;
  lumaNE_47 = tmpvar_127;
  float tmpvar_128;
  tmpvar_128 = FxaaLuma (rgbSW_50);
  float tmpvar_129;
  tmpvar_129 = tmpvar_128;
  lumaSW_46 = tmpvar_129;
  float tmpvar_130;
  tmpvar_130 = FxaaLuma (rgbSE_49);
  float tmpvar_131;
  tmpvar_131 = tmpvar_130;
  lumaSE_45 = tmpvar_131;
  float tmpvar_132;
  tmpvar_132 = abs ((((0.25 * lumaNW_48) + (-(0.5) * lumaN_64)) + (0.25 * lumaNE_47)));
  float tmpvar_133;
  tmpvar_133 = abs ((((0.5 * lumaW_63) + (-(1.0) * lumaM_62)) + (0.5 * lumaE_61)));
  float tmpvar_134;
  tmpvar_134 = abs ((((0.25 * lumaSW_46) + (-(0.5) * lumaS_60)) + (0.25 * lumaSE_45)));
  float tmpvar_135;
  tmpvar_135 = ((tmpvar_132 + tmpvar_133) + tmpvar_134);
  edgeVert_44 = tmpvar_135;
  float tmpvar_136;
  tmpvar_136 = abs ((((0.25 * lumaNW_48) + (-(0.5) * lumaW_63)) + (0.25 * lumaSW_46)));
  float tmpvar_137;
  tmpvar_137 = abs ((((0.5 * lumaN_64) + (-(1.0) * lumaM_62)) + (0.5 * lumaS_60)));
  float tmpvar_138;
  tmpvar_138 = abs ((((0.25 * lumaNE_47) + (-(0.5) * lumaE_61)) + (0.25 * lumaSE_45)));
  float tmpvar_139;
  tmpvar_139 = ((tmpvar_136 + tmpvar_137) + tmpvar_138);
  edgeHorz_43 = tmpvar_139;
  bool tmpvar_140;
  tmpvar_140 = (edgeHorz_43 >= edgeVert_44);
  horzSpan_42 = tmpvar_140;
  float tmpvar_141;
  if (horzSpan_42) {
    tmpvar_141 = -(rcpFrame_23.y);
  } else {
    tmpvar_141 = -(rcpFrame_23.x);
  };
  float tmpvar_142;
  tmpvar_142 = tmpvar_141;
  lengthSign_41 = tmpvar_142;
  if (!(horzSpan_42)) {
    float tmpvar_143;
    tmpvar_143 = lumaW_63;
    lumaN_64 = tmpvar_143;
  };
  if (!(horzSpan_42)) {
    float tmpvar_144;
    tmpvar_144 = lumaE_61;
    lumaS_60 = tmpvar_144;
  };
  float tmpvar_145;
  tmpvar_145 = abs ((lumaN_64 - lumaM_62));
  float tmpvar_146;
  tmpvar_146 = tmpvar_145;
  gradientN_40 = tmpvar_146;
  float tmpvar_147;
  tmpvar_147 = abs ((lumaS_60 - lumaM_62));
  float tmpvar_148;
  tmpvar_148 = tmpvar_147;
  gradientS_39 = tmpvar_148;
  float tmpvar_149;
  tmpvar_149 = ((lumaN_64 + lumaM_62) * 0.5);
  lumaN_64 = tmpvar_149;
  float tmpvar_150;
  tmpvar_150 = ((lumaS_60 + lumaM_62) * 0.5);
  lumaS_60 = tmpvar_150;
  bool tmpvar_151;
  tmpvar_151 = (gradientN_40 >= gradientS_39);
  pairN_38 = tmpvar_151;
  if (!(pairN_38)) {
    float tmpvar_152;
    tmpvar_152 = lumaS_60;
    lumaN_64 = tmpvar_152;
  };
  if (!(pairN_38)) {
    float tmpvar_153;
    tmpvar_153 = gradientS_39;
    gradientN_40 = tmpvar_153;
  };
  if (!(pairN_38)) {
    float tmpvar_154;
    tmpvar_154 = (lengthSign_41 * -(1.0));
    lengthSign_41 = tmpvar_154;
  };
  float tmpvar_155;
  if (horzSpan_42) {
    tmpvar_155 = 0.0;
  } else {
    tmpvar_155 = (lengthSign_41 * 0.5);
  };
  float tmpvar_156;
  tmpvar_156 = (pos_21.x + tmpvar_155);
  posN_37.x = tmpvar_156;
  float tmpvar_157;
  if (horzSpan_42) {
    tmpvar_157 = (lengthSign_41 * 0.5);
  } else {
    tmpvar_157 = 0.0;
  };
  float tmpvar_158;
  tmpvar_158 = (pos_21.y + tmpvar_157);
  posN_37.y = vec2(tmpvar_158).y;
  float tmpvar_159;
  tmpvar_159 = (gradientN_40 * 0.25);
  gradientN_40 = tmpvar_159;
  vec2 tmpvar_160;
  tmpvar_160 = posN_37;
  posP_36 = tmpvar_160;
  vec2 tmpvar_161;
  if (horzSpan_42) {
    vec2 tmpvar_162;
    tmpvar_162.y = 0.0;
    tmpvar_162.x = rcpFrame_23.x;
    tmpvar_161 = tmpvar_162;
  } else {
    vec2 tmpvar_163;
    tmpvar_163.x = 0.0;
    tmpvar_163.y = rcpFrame_23.y;
    tmpvar_161 = tmpvar_163;
  };
  vec2 tmpvar_164;
  tmpvar_164 = tmpvar_161;
  offNP_35 = tmpvar_164;
  float tmpvar_165;
  tmpvar_165 = lumaN_64;
  lumaEndN_34 = tmpvar_165;
  float tmpvar_166;
  tmpvar_166 = lumaN_64;
  lumaEndP_33 = tmpvar_166;
  vec2 tmpvar_167;
  tmpvar_167 = (posN_37 + (offNP_35 * vec2(-1.0, -1.0)));
  posN_37 = tmpvar_167;
  vec2 tmpvar_168;
  tmpvar_168 = (posP_36 + (offNP_35 * vec2(1.0, 1.0)));
  posP_36 = tmpvar_168;
  while (true) {
    if (!((i_30 < 16))) {
      break;
    };
    if (!(doneN_32)) {
      vec4 tmpvar_169;
      tmpvar_169 = FxaaTexLod0 (tex_22, posN_37.xy);
      float tmpvar_170;
      tmpvar_170 = FxaaLuma (tmpvar_169.xyz);
      float tmpvar_171;
      tmpvar_171 = tmpvar_170;
      lumaEndN_34 = tmpvar_171;
    };
    if (!(doneP_31)) {
      vec4 tmpvar_172;
      tmpvar_172 = FxaaTexLod0 (tex_22, posP_36.xy);
      float tmpvar_173;
      tmpvar_173 = FxaaLuma (tmpvar_172.xyz);
      float tmpvar_174;
      tmpvar_174 = tmpvar_173;
      lumaEndP_33 = tmpvar_174;
    };
    bool tmpvar_175;
    if (doneN_32) {
      tmpvar_175 = bool(1);
    } else {
      float tmpvar_176;
      tmpvar_176 = abs ((lumaEndN_34 - lumaN_64));
      tmpvar_175 = (tmpvar_176 >= gradientN_40);
    };
    bool tmpvar_177;
    tmpvar_177 = tmpvar_175;
    doneN_32 = tmpvar_177;
    bool tmpvar_178;
    if (doneP_31) {
      tmpvar_178 = bool(1);
    } else {
      float tmpvar_179;
      tmpvar_179 = abs ((lumaEndP_33 - lumaN_64));
      tmpvar_178 = (tmpvar_179 >= gradientN_40);
    };
    bool tmpvar_180;
    tmpvar_180 = tmpvar_178;
    doneP_31 = tmpvar_180;
    if ((doneN_32 && doneP_31)) {
      break;
    };
    if (!(doneN_32)) {
      vec2 tmpvar_181;
      tmpvar_181 = (posN_37 - offNP_35);
      posN_37 = tmpvar_181;
    };
    if (!(doneP_31)) {
      vec2 tmpvar_182;
      tmpvar_182 = (posP_36 + offNP_35);
      posP_36 = tmpvar_182;
    };
    int _post_incdec_tmp_183;
    _post_incdec_tmp_183 = i_30;
    int tmpvar_184;
    tmpvar_184 = (i_30 + 1);
    i_30 = tmpvar_184;
  };
  float tmpvar_185;
  if (horzSpan_42) {
    tmpvar_185 = (pos_21.x - posN_37.x);
  } else {
    tmpvar_185 = (pos_21.y - posN_37.y);
  };
  float tmpvar_186;
  tmpvar_186 = tmpvar_185;
  dstN_29 = tmpvar_186;
  float tmpvar_187;
  if (horzSpan_42) {
    tmpvar_187 = (posP_36.x - pos_21.x);
  } else {
    tmpvar_187 = (posP_36.y - pos_21.y);
  };
  float tmpvar_188;
  tmpvar_188 = tmpvar_187;
  dstP_28 = tmpvar_188;
  bool tmpvar_189;
  tmpvar_189 = (dstN_29 < dstP_28);
  directionN_27 = tmpvar_189;
  float tmpvar_190;
  if (directionN_27) {
    tmpvar_190 = lumaEndN_34;
  } else {
    tmpvar_190 = lumaEndP_33;
  };
  float tmpvar_191;
  tmpvar_191 = tmpvar_190;
  lumaEndN_34 = tmpvar_191;
  if ((((lumaM_62 - lumaN_64) < 0.0) == ((lumaEndN_34 - lumaN_64) < 0.0))) {
    float tmpvar_192;
    tmpvar_192 = 0.0;
    lengthSign_41 = tmpvar_192;
  };
  float tmpvar_193;
  tmpvar_193 = (dstP_28 + dstN_29);
  spanLength_26 = tmpvar_193;
  float tmpvar_194;
  if (directionN_27) {
    tmpvar_194 = dstN_29;
  } else {
    tmpvar_194 = dstP_28;
  };
  float tmpvar_195;
  tmpvar_195 = tmpvar_194;
  dstN_29 = tmpvar_195;
  float tmpvar_196;
  tmpvar_196 = ((0.5 + (dstN_29 * (-(1.0) / spanLength_26))) * lengthSign_41);
  subPixelOffset_25 = tmpvar_196;
  float tmpvar_197;
  if (horzSpan_42) {
    tmpvar_197 = 0.0;
  } else {
    tmpvar_197 = subPixelOffset_25;
  };
  float tmpvar_198;
  if (horzSpan_42) {
    tmpvar_198 = subPixelOffset_25;
  } else {
    tmpvar_198 = 0.0;
  };
  vec2 tmpvar_199;
  tmpvar_199.x = (pos_21.x + tmpvar_197);
  tmpvar_199.y = (pos_21.y + tmpvar_198);
  vec4 tmpvar_200;
  tmpvar_200 = FxaaTexLod0 (tex_22, tmpvar_199);
  vec3 tmpvar_201;
  tmpvar_201 = tmpvar_200.xyz;
  rgbF_24 = tmpvar_201;
  vec3 tmpvar_202;
  tmpvar_202 = FxaaLerp3 (rgbL_56, rgbF_24, blendL_53);
  vec3 tmpvar_203;
  tmpvar_203 = FxaaFilterReturn (tmpvar_202);
  return tmpvar_203;
}

vec4 xlat_main (
  in vec2 uv_204
)
{
  vec3 tmpvar_205;
  tmpvar_205 = FxaaPixelShader (uv_204.xy, _MainTex, _MainTex_TexelSize.xy);
  vec4 tmpvar_206;
  tmpvar_206.w = 0.0;
  tmpvar_206.xyz = tmpvar_205.xyz.xyz;
  return tmpvar_206;
}

void main ()
{
  vec4 xl_retval_207;
  vec2 tmpvar_208;
  tmpvar_208 = xlv_TEXCOORD0.xy;
  vec4 tmpvar_209;
  tmpvar_209 = xlat_main (tmpvar_208);
  vec4 tmpvar_210;
  tmpvar_210 = tmpvar_209;
  xl_retval_207 = tmpvar_210;
  vec4 tmpvar_211;
  tmpvar_211 = xl_retval_207.xyzw;
  vec4 tmpvar_212;
  tmpvar_212 = tmpvar_211;
  gl_FragData[0] = tmpvar_212;
}