int FUN_0045c090(int *param_1,int param_2)

{

  int iVar1;

  int iVar2;

  int iVar3;

  iVar2 = *param_1;

  if (iVar2 < param_2) {

    if (param_1[2] < param_2) {

      iVar3 = ((param_2 + 3) / 3) * 4;

      if (param_1[1] == 0) {

        iVar1 = FUN_0043a36c(iVar3,"buffer.c",0x93);

      }

      else {

        iVar1 = FUN_0043a870(param_1[1],param_1[2],iVar3,"buffer.c",0x95);

      }

      if (iVar1 == 0) {

        FUN_00433604(7,0x69,0x41,"buffer.c",0x98);

        return 0;

      }

      iVar2 = *param_1;

      param_1[2] = iVar3;

      param_1[1] = iVar1;

      iVar1 = iVar1 + iVar2;

    }

    else {

      iVar1 = param_1[1] + iVar2;

    }

    iVar2 = param_2 - iVar2;

  }

  else {

    iVar1 = param_1[1] + param_2;

    iVar2 = iVar2 - param_2;

  }

  FUN_00483cc0(iVar1,0,iVar2);

  *param_1 = param_2;

  return param_2;

}