1 //-------------------------------------------------------------------------
2 /*
3 Copyright (C) 2010-2019 EDuke32 developers and contributors
4 Copyright (C) 2019 Nuke.YKT
5
6 This file is part of NBlood.
7
8 NBlood is free software; you can redistribute it and/or
9 modify it under the terms of the GNU General Public License version 2
10 as published by the Free Software Foundation.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15
16 See the GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 */
22 //-------------------------------------------------------------------------
23 #include <stdlib.h>
24 #include <string.h>
25 #include "compat.h"
26 #include "common_game.h"
27 #include "iob.h"
28
IOBuffer(int _nRemain,char * _pBuffer)29 IOBuffer::IOBuffer(int _nRemain, char *_pBuffer)
30 {
31 nRemain = _nRemain;
32 pBuffer =_pBuffer;
33 }
34
Read(void * pData,int nSize)35 void IOBuffer::Read(void *pData, int nSize)
36 {
37 if (nSize <= nRemain)
38 {
39 memcpy(pData, pBuffer, nSize);
40 nRemain -= nSize;
41 pBuffer += nSize;
42 }
43 else
44 {
45 ThrowError("Read buffer overflow");
46 }
47 }
48
Write(void * pData,int nSize)49 void IOBuffer::Write(void *pData, int nSize)
50 {
51 if (nSize <= nRemain)
52 {
53 memcpy(pBuffer, pData, nSize);
54 nRemain -= nSize;
55 pBuffer += nSize;
56 }
57 else
58 {
59 ThrowError("Write buffer overflow");
60 }
61 }
62
Skip(int nSize)63 void IOBuffer::Skip(int nSize)
64 {
65 if (nSize <= nRemain)
66 {
67 nRemain -= nSize;
68 pBuffer += nSize;
69 }
70 else
71 {
72 ThrowError("Skip overflow");
73 }
74 }
75