CChoreoScene::GetCRCFromBinaryBuffer

/* CChoreoScene::GetCRCFromBinaryBuffer(CUtlBuffer&, unsigned int&) */

undefined4 CChoreoScene::GetCRCFromBinaryBuffer(CUtlBuffer *param_1,uint *param_2)

{
  undefined4 uVar1;
  char cVar2;
  int iVar3;
  uint *puVar4;
  uint uVar5;
  undefined4 uVar6;
  uint local_24;
  undefined4 local_20;
  
  uVar1 = *(undefined4 *)(param_1 + 0xc);
  if (((byte)param_1[0x15] & 1) == 0) {
    uVar6 = 0;
    cVar2 = CUtlBuffer::CheckGet(param_1,4);
    if (cVar2 == '\0') goto LAB_00bb289f;
    if (((byte)param_1[0x34] & 1) == 0) {
      iVar3 = *(int *)(param_1 + 0xc);
      uVar5 = *(uint *)(*(int *)param_1 + (iVar3 - *(int *)(param_1 + 0x20)));
    }
    else {
      puVar4 = (uint *)((*(int *)(param_1 + 0xc) - *(int *)(param_1 + 0x20)) + *(int *)param_1);
      if (puVar4 == (uint *)0x0) {
        puVar4 = &local_24;
      }
      local_20 = local_24;
      local_20._1_3_ = (undefined3)(local_24 >> 8);
      local_20 = CONCAT31(local_20._1_3_,*(undefined1 *)((int)puVar4 + 3));
      local_20._2_2_ = (undefined2)(local_24 >> 0x10);
      local_20._0_2_ = CONCAT11(*(undefined1 *)((int)puVar4 + 2),*(undefined1 *)((int)puVar4 + 3));
      local_20._3_1_ = (undefined1)(local_24 >> 0x18);
      local_20._0_3_ = CONCAT12(*(undefined1 *)((int)puVar4 + 1),(undefined2)local_20);
      local_20 = CONCAT13((char)*puVar4,(undefined3)local_20);
      _V_memcpy(&local_24,&local_20,4);
      iVar3 = *(int *)(param_1 + 0xc);
      uVar5 = local_24;
    }
    *(int *)(param_1 + 0xc) = iVar3 + 4;
  }
  else {
    local_24 = 0;
    CUtlBuffer::Scanf(param_1,"%d",&local_24);
    uVar5 = local_24;
  }
  if (uVar5 == 0x64637662) {
    if (((byte)param_1[0x15] & 1) == 0) {
      uVar6 = 0;
      cVar2 = CUtlBuffer::CheckGet(param_1,1);
      if (cVar2 == '\0') goto LAB_00bb289f;
      cVar2 = *(char *)(*(int *)param_1 + (*(int *)(param_1 + 0xc) - *(int *)(param_1 + 0x20)));
      *(int *)(param_1 + 0xc) = *(int *)(param_1 + 0xc) + 1;
    }
    else {
      local_20 = local_20 & 0xffffff00;
      CUtlBuffer::Scanf(param_1,"%c",&local_20);
      cVar2 = (char)local_20;
    }
    if (cVar2 == '\x04') {
      if (((byte)param_1[0x15] & 1) == 0) {
        cVar2 = CUtlBuffer::CheckGet(param_1,4);
        uVar5 = 0;
        if (cVar2 != '\0') {
          if (((byte)param_1[0x34] & 1) == 0) {
            iVar3 = *(int *)(param_1 + 0xc);
            uVar5 = *(uint *)(*(int *)param_1 + (iVar3 - *(int *)(param_1 + 0x20)));
          }
          else {
            puVar4 = (uint *)((*(int *)(param_1 + 0xc) - *(int *)(param_1 + 0x20)) + *(int *)param_1
                             );
            if (puVar4 == (uint *)0x0) {
              puVar4 = &local_24;
            }
            local_20 = local_24;
            local_20._1_3_ = (undefined3)(local_24 >> 8);
            local_20 = CONCAT31(local_20._1_3_,*(undefined1 *)((int)puVar4 + 3));
            local_20._2_2_ = (undefined2)(local_24 >> 0x10);
            local_20._0_2_ =
                 CONCAT11(*(undefined1 *)((int)puVar4 + 2),*(undefined1 *)((int)puVar4 + 3));
            local_20._3_1_ = (undefined1)(local_24 >> 0x18);
            local_20._0_3_ = CONCAT12(*(undefined1 *)((int)puVar4 + 1),(undefined2)local_20);
            local_20 = CONCAT13((char)*puVar4,(undefined3)local_20);
            _V_memcpy(&local_24,&local_20,4);
            iVar3 = *(int *)(param_1 + 0xc);
            uVar5 = local_24;
          }
          *(int *)(param_1 + 0xc) = iVar3 + 4;
        }
      }
      else {
        local_24 = 0;
        CUtlBuffer::Scanf(param_1,"%d",&local_24);
        uVar5 = local_24;
      }
      uVar6 = 1;
      *param_2 = uVar5;
      goto LAB_00bb289f;
    }
  }
  uVar6 = 0;
LAB_00bb289f:
  CUtlBuffer::SeekGet(param_1,0,uVar1);
  return uVar6;
}