CHLTVServer::EntityPVSCheck

/* CHLTVServer::EntityPVSCheck(CClientFrame*) */

void __thiscall CHLTVServer::EntityPVSCheck(CHLTVServer *this,CClientFrame *param_1)

{
  CClientFrame *pCVar1;
  CFrameSnapshot *pCVar2;
  uint uVar3;
  byte bVar4;
  int iVar5;
  int iVar6;
  int iVar7;
  undefined4 *puVar8;
  uint uVar9;
  uint uVar10;
  uint *puVar11;
  int in_GS_OFFSET;
  undefined4 local_2050;
  undefined4 local_202c;
  undefined4 local_2028;
  undefined4 local_2024;
  byte local_2020 [8192];
  int local_20;
  
  local_20 = *(int *)(in_GS_OFFSET + 0x14);
  iVar5 = DAT_0039453c + 7;
  if (DAT_0039453c + 7 < 0) {
    iVar5 = DAT_0039453c + 0xe;
  }
  local_2050 = 0x171970;
  SV_ResetPVS(local_2020,iVar5 >> 3);
  pCVar2 = *(CFrameSnapshot **)(param_1 + 0x118);
  local_2050 = 0x17198a;
  iVar6 = (**(code **)(**(int **)(this + 0x51b8) + 0x18))();
  if ((iVar6 < 1) || (pCVar2 == (CFrameSnapshot *)0x0)) {
    local_2050 = 0x1719b4;
    (**(code **)(**(int **)(this + 0x51b8) + 0x1c))();
    *(undefined4 *)(this + 0x6394) = local_202c;
    *(undefined4 *)(this + 0x6398) = local_2028;
    *(undefined4 *)(this + 0x639c) = local_2024;
    puVar11 = &local_2050;
  }
  else {
    local_2050 = 0x171aea;
    puVar8 = (undefined4 *)FindHLTVDataInSnapshot(pCVar2,iVar6);
    puVar11 = (uint *)&stack0xffffdfb4;
    if (puVar8 != (undefined4 *)0x0) {
      *(undefined4 *)(this + 0x6394) = *puVar8;
      *(undefined4 *)(this + 0x6398) = puVar8[1];
      *(undefined4 *)(this + 0x639c) = puVar8[2];
      puVar11 = (uint *)&stack0xffffdfb4;
    }
  }
  *puVar11 = (uint)(this + 0x6394);
  puVar11[-1] = 0x1719f8;
  SV_AddOriginToPVS((Vector *)*puVar11);
  uVar10 = 0;
  do {
    iVar7 = (int)uVar10 >> 5;
    pCVar1 = param_1 + iVar7 * 4 + 0xc;
    uVar10 = *(uint *)pCVar1 & (&GetStartBitMask(int)::g_StartMask)[uVar10 & 0x1f];
    iVar6 = iVar7;
    if (uVar10 == 0) {
      iVar6 = iVar7 + 1;
      uVar10 = *(uint *)(pCVar1 + 4);
      if (0x3f < iVar6) break;
      while (uVar10 == 0) {
        uVar10 = *(uint *)(pCVar1 + iVar6 * 4 + iVar7 * -4 + 4);
        iVar6 = iVar6 + 1;
        if (iVar6 == 0x40) goto LAB_00171ac0;
      }
    }
    iVar6 = iVar6 * 0x20;
    if ((uVar10 & 0xff) == 0) {
      uVar9 = uVar10 >> 8 & 0xff;
      if (uVar9 == 0) {
        uVar9 = uVar10 >> 0x10 & 0xff;
        if (uVar9 == 0) {
          if (uVar10 >> 0x18 == 0) break;
          uVar10 = iVar6 + 0x18 +
                   *(int *)(FirstBitInWord(unsigned_int,int)::firstBitLUT + (uVar10 >> 0x18) * 4);
        }
        else {
          uVar10 = iVar6 + 0x10 +
                   *(int *)(FirstBitInWord(unsigned_int,int)::firstBitLUT + uVar9 * 4);
        }
      }
      else {
        uVar10 = iVar6 + 8 + *(int *)(FirstBitInWord(unsigned_int,int)::firstBitLUT + uVar9 * 4);
      }
    }
    else {
      uVar10 = iVar6 + *(int *)(FirstBitInWord(unsigned_int,int)::firstBitLUT + (uVar10 & 0xff) * 4)
      ;
    }
    if ((int)uVar10 < 0) break;
    uVar9 = 1 << ((byte)uVar10 & 0x1f);
    if ((*(uint *)(*(int *)(param_1 + 0x110) + (uVar10 >> 5) * 4) & uVar9) == 0) {
      puVar11[1] = uVar10;
      *puVar11 = (uint)pCVar2;
      puVar11[-1] = 0x171b38;
      iVar6 = FindHLTVDataInSnapshot((CFrameSnapshot *)*puVar11,puVar11[1]);
      if (iVar6 != 0) {
        uVar3 = *(uint *)(iVar6 + 0xc);
        if ((int)uVar3 < 0) {
          *puVar11 = uVar3 & 0x7fffffff;
          puVar11[2] = iVar5 >> 3;
          puVar11[1] = (uint)local_2020;
          puVar11[-1] = 0x171bd1;
          bVar4 = CM_HeadnodeVisible(*puVar11,(uchar *)puVar11[1],puVar11[2]);
        }
        else {
          bVar4 = local_2020[uVar3 >> 3] >> (uVar3 & 7) & 1;
        }
        if (bVar4 != 0) goto LAB_00171aa7;
        *(uint *)(param_1 + ((int)uVar10 >> 5) * 4 + 0xc) =
             *(uint *)(param_1 + ((int)uVar10 >> 5) * 4 + 0xc) & ~uVar9;
      }
    }
    else {
LAB_00171aa7:
      *(uint *)(param_1 + 4) = uVar10;
    }
    uVar10 = uVar10 + 1;
  } while ((int)uVar10 < 0x800);
LAB_00171ac0:
  if (local_20 == *(int *)(in_GS_OFFSET + 0x14)) {
    return;
  }
                    /* WARNING: Subroutine does not return */
  puVar11[-1] = (uint)&UNK_00171be5;
  __stack_chk_fail();
}