CEdgeList::CullSmallOccluders

/* CEdgeList::CullSmallOccluders() */

void __thiscall CEdgeList::CullSmallOccluders(CEdgeList *this)

{
  ushort *puVar1;
  float *pfVar2;
  ushort uVar3;
  size_t __nmemb;
  int iVar4;
  int iVar5;
  int iVar6;
  size_t sVar7;
  void *pvVar8;
  int iVar9;
  int iVar10;
  int in_GS_OFFSET;
  longdouble lVar11;
  float fVar12;
  undefined4 uStackY_50;
  int local_30 [4];
  int local_20;
  
  local_20 = *(int *)(in_GS_OFFSET + 0x14);
  __nmemb = *(size_t *)(this + 0xb0);
  s_pSortSurfaces = *(undefined4 *)(this + 0xa4);
  uStackY_50 = 0x1cd24a;
  qsort(*(void **)(this + 0xb8),__nmemb,4,SurfCompare);
  iVar4 = *(int *)(r_occludermincount._28_4_ + 0x30);
  fVar12 = *(float *)(r_occluderminarea._28_4_ + 0x2c) * 0.02;
  if (fVar12 == 0.0) {
    uStackY_50 = 0x1cd3ec;
    lVar11 = (longdouble)(**(code **)(g_OcclusionSystem + 0x10))();
    fVar12 = (float)lVar11 * 0.02;
  }
  iVar6 = -((__nmemb + 0xf & 0xfffffff0) + 0x10);
  *(size_t *)((int)local_30 + iVar6 + -0x14) = __nmemb;
  local_30[0] = (int)local_30 + iVar6;
  *(undefined4 *)((int)local_30 + iVar6 + -0x18) = 0;
  *(int *)((int)local_30 + iVar6 + -0x1c) = local_30[0];
  *(undefined4 *)((int)&uStackY_50 + iVar6) = 0x1cd2aa;
  memset(*(void **)((int)local_30 + iVar6 + -0x1c),*(int *)((int)local_30 + iVar6 + -0x18),
         *(size_t *)((int)local_30 + iVar6 + -0x14));
  if (0 < (int)__nmemb) {
    iVar9 = *(int *)(this + 0xa4);
    iVar10 = *(int *)(this + 0xb8);
    sVar7 = 0;
    do {
      iVar5 = *(int *)(iVar10 + sVar7 * 4);
      pfVar2 = (float *)(iVar9 + 0x24 + iVar5 * 0x28);
      if ((*pfVar2 <= fVar12 && fVar12 != *pfVar2) && (iVar4 <= (int)sVar7)) break;
      sVar7 = sVar7 + 1;
      *(undefined1 *)(local_30[0] + iVar5) = 1;
    } while (sVar7 != __nmemb);
  }
  iVar4 = *(int *)(this + 0x20);
  *(undefined4 *)(this + 0x3c) = 0;
  if ((*(int *)(this + 0x34) < iVar4) && (-1 < *(int *)(this + 0x38))) {
    *(int *)(this + 0x34) = iVar4;
    if (*(int *)(this + 0x30) == 0) {
      *(int *)((int)local_30 + iVar6 + -0x1c) = iVar4 * 2;
      *(undefined4 *)((int)&uStackY_50 + iVar6) = 0x1cd40d;
      pvVar8 = malloc(*(size_t *)((int)local_30 + iVar6 + -0x1c));
      *(void **)(this + 0x30) = pvVar8;
    }
    else {
      *(int *)((int)local_30 + iVar6 + -0x1c) = *(int *)(this + 0x30);
      *(int *)((int)local_30 + iVar6 + -0x18) = iVar4 * 2;
      *(undefined4 *)((int)&uStackY_50 + iVar6) = 0x1cd326;
      pvVar8 = realloc(*(void **)((int)local_30 + iVar6 + -0x1c),
                       *(size_t *)((int)local_30 + iVar6 + -0x18));
      *(void **)(this + 0x30) = pvVar8;
    }
  }
  else {
    pvVar8 = *(void **)(this + 0x30);
  }
  *(void **)(this + 0x40) = pvVar8;
  iVar10 = 0;
  iVar9 = local_30[0];
  if (0 < iVar4) {
    do {
      while (uVar3 = *(ushort *)(*(int *)(this + 0x14) + iVar10),
            *(char *)(iVar9 + *(int *)((uint)uVar3 * 0x30 + *(int *)this + 0x24)) == '\0') {
LAB_001cd350:
        iVar10 = iVar10 + 2;
        if (iVar10 == iVar4 * 2) goto LAB_001cd3c1;
      }
      iVar5 = *(int *)(this + 0x3c);
      *(undefined4 *)((int)local_30 + iVar6 + -0x18) = 1;
      local_30[0] = iVar9;
      *(CEdgeList **)((int)local_30 + iVar6 + -0x1c) = this + 0x30;
      *(undefined4 *)((int)&uStackY_50 + iVar6) = 0x1cd38f;
      CUtlVector<unsigned_short,CUtlMemory<unsigned_short,int>>::GrowVector
                (*(CUtlVector<unsigned_short,CUtlMemory<unsigned_short,int>> **)
                  ((int)local_30 + iVar6 + -0x1c),*(int *)((int)local_30 + iVar6 + -0x18));
      *(undefined4 *)((int)local_30 + iVar6 + -0x14) = 1;
      *(int *)((int)local_30 + iVar6 + -0x18) = iVar5;
      *(CEdgeList **)((int)local_30 + iVar6 + -0x1c) = this + 0x30;
      *(undefined4 *)((int)&uStackY_50 + iVar6) = 0x1cd3a6;
      CUtlVector<unsigned_short,CUtlMemory<unsigned_short,int>>::ShiftElementsRight
                (*(CUtlVector<unsigned_short,CUtlMemory<unsigned_short,int>> **)
                  ((int)local_30 + iVar6 + -0x1c),*(int *)((int)local_30 + iVar6 + -0x18),
                 *(int *)((int)local_30 + iVar6 + -0x14));
      puVar1 = (ushort *)(*(int *)(this + 0x30) + iVar5 * 2);
      iVar9 = local_30[0];
      if (puVar1 == (ushort *)0x0) goto LAB_001cd350;
      iVar10 = iVar10 + 2;
      *puVar1 = uVar3;
    } while (iVar10 != iVar4 * 2);
  }
LAB_001cd3c1:
  if (local_20 != *(int *)(in_GS_OFFSET + 0x14)) {
                    /* WARNING: Subroutine does not return */
    *(undefined **)((int)&uStackY_50 + iVar6) = &UNK_001cd41a;
    __stack_chk_fail();
  }
  return;
}