bgfx/3rdparty/glsl-optimizer/tests/fragment/unity-Hidden_Shadow-ScreenBlur-ir.txt

struct v2f_img {
  vec4 pos;
  vec2 uv;
};
uniform vec4 unity_ShadowBlurParams;
uniform sampler2D _MainTex;
uniform vec4 _BlurOffsets[8];
float xll_saturate (
  in float x
)
{
  float tmpvar_1;
  tmpvar_1 = clamp (x, 0.0, 1.0);
  return tmpvar_1;
}

vec2 xll_saturate (
  in vec2 x
)
{
  vec2 tmpvar_1;
  tmpvar_1 = clamp (x, 0.0, 1.0);
  return tmpvar_1;
}

vec3 xll_saturate (
  in vec3 x
)
{
  vec3 tmpvar_1;
  tmpvar_1 = clamp (x, 0.0, 1.0);
  return tmpvar_1;
}

vec4 xll_saturate (
  in vec4 x
)
{
  vec4 tmpvar_1;
  tmpvar_1 = clamp (x, 0.0, 1.0);
  return tmpvar_1;
}

mat2 xll_saturate (
  in mat2 m
)
{
  vec2 tmpvar_1;
  tmpvar_1 = clamp (m[0], 0.0, 1.0);
  vec2 tmpvar_2;
  tmpvar_2 = clamp (m[1], 0.0, 1.0);
  mat2 tmpvar_3;
  vec2 tmpvar_4;
  tmpvar_4 = tmpvar_1;
  tmpvar_3[0] = tmpvar_4;
  vec2 tmpvar_5;
  tmpvar_5 = tmpvar_2;
  tmpvar_3[1] = tmpvar_5;
  return tmpvar_3;
}

mat3 xll_saturate (
  in mat3 m
)
{
  vec3 tmpvar_1;
  tmpvar_1 = clamp (m[0], 0.0, 1.0);
  vec3 tmpvar_2;
  tmpvar_2 = clamp (m[1], 0.0, 1.0);
  vec3 tmpvar_3;
  tmpvar_3 = clamp (m[2], 0.0, 1.0);
  mat3 tmpvar_4;
  vec3 tmpvar_5;
  tmpvar_5 = tmpvar_1;
  tmpvar_4[0] = tmpvar_5;
  vec3 tmpvar_6;
  tmpvar_6 = tmpvar_2;
  tmpvar_4[1] = tmpvar_6;
  vec3 tmpvar_7;
  tmpvar_7 = tmpvar_3;
  tmpvar_4[2] = tmpvar_7;
  return tmpvar_4;
}

mat4 xll_saturate (
  in mat4 m
)
{
  vec4 tmpvar_1;
  tmpvar_1 = clamp (m[0], 0.0, 1.0);
  vec4 tmpvar_2;
  tmpvar_2 = clamp (m[1], 0.0, 1.0);
  vec4 tmpvar_3;
  tmpvar_3 = clamp (m[2], 0.0, 1.0);
  vec4 tmpvar_4;
  tmpvar_4 = clamp (m[3], 0.0, 1.0);
  mat4 tmpvar_5;
  vec4 tmpvar_6;
  tmpvar_6 = tmpvar_1;
  tmpvar_5[0] = tmpvar_6;
  vec4 tmpvar_7;
  tmpvar_7 = tmpvar_2;
  tmpvar_5[1] = tmpvar_7;
  vec4 tmpvar_8;
  tmpvar_8 = tmpvar_3;
  tmpvar_5[2] = tmpvar_8;
  vec4 tmpvar_9;
  tmpvar_9 = tmpvar_4;
  tmpvar_5[3] = tmpvar_9;
  return tmpvar_5;
}

vec4 frag (
  in v2f_img i
)
{
  float shadow;
  float diff;
  float sampleDist;
  vec4 sample;
  int i_1;
  float diffTolerance;
  float radius;
  float dist;
  vec4 mask;
  vec4 coord;
  int tmpvar_1;
  tmpvar_1 = 0;
  i_1 = tmpvar_1;
  vec4 tmpvar_2;
  tmpvar_2.zw = vec2(0.0, 0.0);
  tmpvar_2.xy = i.uv.xy;
  vec4 tmpvar_3;
  tmpvar_3 = tmpvar_2;
  coord = tmpvar_3;
  vec4 tmpvar_4;
  tmpvar_4 = texture2D (_MainTex, coord.xy);
  vec4 tmpvar_5;
  tmpvar_5 = tmpvar_4;
  mask = tmpvar_5;
  float tmpvar_6;
  tmpvar_6 = (mask.z + (mask.w / 255.0));
  dist = tmpvar_6;
  float tmpvar_7;
  tmpvar_7 = xll_saturate ((unity_ShadowBlurParams.y / (1.0 - dist)));
  float tmpvar_8;
  tmpvar_8 = tmpvar_7;
  radius = tmpvar_8;
  float tmpvar_9;
  tmpvar_9 = unity_ShadowBlurParams.x;
  diffTolerance = tmpvar_9;
  vec2 tmpvar_10;
  tmpvar_10 = (mask.xy * diffTolerance);
  mask.xy = tmpvar_10.xy.xy;
  while (true) {
    if (!((i_1 < 8))) {
      break;
    };
    vec4 tmpvar_11;
    tmpvar_11 = texture2D (_MainTex, (coord + (radius * _BlurOffsets[i_1])).xy);
    vec4 tmpvar_12;
    tmpvar_12 = tmpvar_11;
    sample = tmpvar_12;
    float tmpvar_13;
    tmpvar_13 = (sample.z + (sample.w / 255.0));
    sampleDist = tmpvar_13;
    float tmpvar_14;
    tmpvar_14 = (dist - sampleDist);
    diff = tmpvar_14;
    float tmpvar_15;
    tmpvar_15 = abs (diff);
    float tmpvar_16;
    tmpvar_16 = xll_saturate ((diffTolerance - tmpvar_15));
    float tmpvar_17;
    tmpvar_17 = tmpvar_16;
    diff = tmpvar_17;
    vec2 tmpvar_18;
    tmpvar_18 = (mask.xy + (diff * sample.xy));
    mask.xy = tmpvar_18.xy.xy;
    int _post_incdec_tmp;
    _post_incdec_tmp = i_1;
    int tmpvar_19;
    tmpvar_19 = (i_1 + 1);
    i_1 = tmpvar_19;
  };
  float tmpvar_20;
  tmpvar_20 = (mask.x / mask.y);
  shadow = tmpvar_20;
  vec4 tmpvar_21;
  tmpvar_21 = vec4(shadow);
  return tmpvar_21;
}

void main ()
{
  v2f_img xlt_i;
  vec4 xl_retval;
  vec4 tmpvar_1;
  tmpvar_1 = vec4(0.0, 0.0, 0.0, 0.0);
  xlt_i.pos = tmpvar_1;
  vec2 tmpvar_2;
  tmpvar_2 = gl_TexCoord[0].xy;
  vec2 tmpvar_3;
  tmpvar_3 = tmpvar_2;
  xlt_i.uv = tmpvar_3;
  vec4 tmpvar_4;
  tmpvar_4 = frag (xlt_i);
  vec4 tmpvar_5;
  tmpvar_5 = tmpvar_4;
  xl_retval = tmpvar_5;
  vec4 tmpvar_6;
  tmpvar_6 = xl_retval.xyzw;
  vec4 tmpvar_7;
  tmpvar_7 = tmpvar_6;
  gl_FragData[0] = tmpvar_7;
}