COverlayMgr::Disp_PreClipFragment

/* COverlayMgr::Disp_PreClipFragment(moverlay_t*, CUtlVector<moverlayfragment_t*,
   CUtlMemory<moverlayfragment_t*, int> >&, msurface2_t*) */

char __thiscall
COverlayMgr::Disp_PreClipFragment
          (COverlayMgr *this,moverlay_t *param_1,CUtlVector *param_2,msurface2_t *param_3)

{
  undefined4 *puVar1;
  int iVar2;
  undefined1 *puVar3;
  int iVar4;
  undefined4 *puVar5;
  int iVar6;
  int iVar7;
  int in_GS_OFFSET;
  char local_1a1;
  moverlayfragment_t *local_188;
  uint local_184;
  uint local_180;
  moverlayfragment_t local_17c [16];
  int local_16c [6];
  moverlayfragment_t local_154 [16];
  int local_144 [6];
  CFmtStrN<256> local_12c [5];
  undefined1 local_127 [263];
  int local_20;
  
  local_16c[0] = 0;
  local_16c[1] = 0;
  local_16c[2] = 0;
  local_16c[3] = 0;
  local_16c[4] = 0;
  iVar2 = *(int *)(param_3 + 8);
  local_20 = *(int *)(in_GS_OFFSET + 0x14);
  CUtlVector<overlayvert_t,CUtlMemory<overlayvert_t,int>>::GrowVector
            ((CUtlVector<overlayvert_t,CUtlMemory<overlayvert_t,int>> *)local_16c,4);
                    /* try { // try from 001d3719 to 001d371d has its CatchHandler @ 001d3b82 */
  CUtlVector<overlayvert_t,CUtlMemory<overlayvert_t,int>>::ShiftElementsRight
            ((CUtlVector<overlayvert_t,CUtlMemory<overlayvert_t,int>> *)local_16c,0,4);
  iVar4 = 0;
  do {
    puVar5 = (undefined4 *)(local_16c[0] + iVar4);
    if (puVar5 != (undefined4 *)0x0) {
      *puVar5 = 0;
      puVar5[1] = 0;
      puVar5[2] = 0;
      puVar5[3] = 0;
      puVar5[4] = 0;
      puVar5[5] = 0;
      puVar5[6] = 0;
      puVar5[7] = 0;
      puVar5[8] = 0;
      puVar5[9] = 0;
      puVar5[0xb] = 0;
      puVar5[10] = 0;
      puVar5[0xc] = 0xffffffff;
    }
    iVar4 = iVar4 + 0x34;
  } while (iVar4 != 0xd0);
  iVar4 = 0;
  do {
    puVar5 = (undefined4 *)
             (*(int *)(DAT_003a172c + 0x20) +
             (uint)*(ushort *)(*(int *)(DAT_003a172c + 0x88) + iVar4 + iVar2 * 2) * 0xc);
    iVar7 = iVar4 * 0x1a;
    iVar4 = iVar4 + 2;
    puVar1 = (undefined4 *)(local_16c[0] + iVar7);
    *puVar1 = *puVar5;
    puVar1[1] = puVar5[1];
    puVar1[2] = puVar5[2];
  } while (iVar4 != 8);
  local_144[0] = 0;
  local_144[1] = 0;
  local_144[2] = 0;
  local_144[3] = 0;
  local_144[4] = 0;
                    /* try { // try from 001d3855 to 001d3b46 has its CatchHandler @ 001d3b5c */
  local_1a1 = Surf_PreClipFragment(this,param_1,local_154,param_3,local_17c);
  if ((local_1a1 == '\0') ||
     (Surf_ClipFragment(this,param_1,local_154,param_3,local_17c), iVar2 = local_144[3],
     local_144[3] == 0)) {
LAB_001d389c:
    local_1a1 = '\0';
  }
  else {
    local_188 = (moverlayfragment_t *)CopyTempFragment(this,local_154);
    CUtlVector<moverlayfragment_t*,CUtlMemory<moverlayfragment_t*,int>>::InsertBefore
              ((CUtlVector<moverlayfragment_t*,CUtlMemory<moverlayfragment_t*,int>> *)param_2,
               *(int *)(param_2 + 0xc),&local_188);
    iVar4 = *(int *)(*(int *)(param_3 + 0x18) + 0x170);
    if (0 < iVar2) {
      iVar7 = 0;
      do {
        iVar6 = iVar7 * 0x34;
        PointInQuadToBarycentric
                  ((Vector *)(local_16c[0] + iVar4 * 0x34),
                   (Vector *)(local_16c[0] + ((iVar4 + 3) % 4) * 0x34),
                   (Vector *)(local_16c[0] + ((iVar4 + 2) % 4) * 0x34),
                   (Vector *)(local_16c[0] + ((iVar4 + 1) % 4) * 0x34),
                   (Vector *)(local_144[0] + iVar6),(Vector2D *)&local_184);
        if (((local_184 & 0x7f800000) == 0x7f800000) || ((local_180 & 0x7f800000) == 0x7f800000)) {
          iVar2 = *(short *)(param_1 + 4) * 0x50 + *(int *)(DAT_003a172c + 0x5c);
          if ((iVar2 == 0) || (puVar5 = *(undefined4 **)(iVar2 + 0x4c), puVar5 == (undefined4 *)0x0)
             ) {
            puVar3 = &DAT_002c79d4;
          }
          else {
            puVar3 = (undefined1 *)(**(code **)*puVar5)(puVar5);
          }
          CFmtStrN<256>::CFmtStrN
                    (local_12c,"(%f, %f, %f)",(double)*(float *)(param_1 + 0x60),
                     (double)*(float *)(param_1 + 100),(double)*(float *)(param_1 + 0x68));
          DevWarning(1,"Bad overlay geometry at %s with material \'%s\'\n",local_127,puVar3);
          goto LAB_001d389c;
        }
        iVar7 = iVar7 + 1;
        *(uint *)(*(int *)(local_188 + 0x10) + iVar6) = local_184;
        *(uint *)(*(int *)(local_188 + 0x10) + 4 + iVar6) = local_180;
        *(undefined4 *)(*(int *)(local_188 + 0x10) + 8 + iVar6) = 0;
      } while (iVar7 != iVar2);
    }
  }
  local_144[3] = 0;
  CUtlMemory<overlayvert_t,int>::Purge((CUtlMemory<overlayvert_t,int> *)local_144);
  local_144[4] = local_144[0];
  CUtlMemory<overlayvert_t,int>::Purge((CUtlMemory<overlayvert_t,int> *)local_144);
  local_16c[3] = 0;
  CUtlMemory<overlayvert_t,int>::Purge((CUtlMemory<overlayvert_t,int> *)local_16c);
  local_16c[4] = local_16c[0];
  CUtlMemory<overlayvert_t,int>::Purge((CUtlMemory<overlayvert_t,int> *)local_16c);
  if (local_20 != *(int *)(in_GS_OFFSET + 0x14)) {
                    /* WARNING: Subroutine does not return */
    __stack_chk_fail();
  }
  return local_1a1;
}