1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2006 The ScummVM project
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "scumm/scumm.h"
#include "scumm/intern.h"
#include "scumm/file.h"
#include "scumm/resource.h"
#include "scumm/util.h"
namespace Scumm {
void ScummEngine_v4::readIndexFile() {
uint16 blocktype;
uint32 itemsize;
int numblock = 0;
debug(9, "readIndexFile()");
closeRoom();
openRoom(0);
while (!_fileHandle->eof()) {
// Figure out the sizes of various resources
itemsize = _fileHandle->readUint32LE();
blocktype = _fileHandle->readUint16LE();
if (_fileHandle->ioFailed())
break;
switch (blocktype) {
case 0x4E52: // 'NR'
_fileHandle->readUint16LE();
break;
case 0x5230: // 'R0'
_numRooms = _fileHandle->readUint16LE();
break;
case 0x5330: // 'S0'
_numScripts = _fileHandle->readUint16LE();
break;
case 0x4E30: // 'N0'
_numSounds = _fileHandle->readUint16LE();
break;
case 0x4330: // 'C0'
_numCostumes = _fileHandle->readUint16LE();
break;
case 0x4F30: // 'O0'
_numGlobalObjects = _fileHandle->readUint16LE();
// Indy3 FM-TOWNS has 32 extra bytes of unknown meaning
if (_game.id == GID_INDY3 && _game.platform == Common::kPlatformFMTowns)
itemsize += 32;
break;
}
_fileHandle->seek(itemsize - 8, SEEK_CUR);
}
_fileHandle->clearIOFailed();
_fileHandle->seek(0, SEEK_SET);
readMAXS(0);
allocateArrays();
while (1) {
itemsize = _fileHandle->readUint32LE();
if (_fileHandle->ioFailed())
break;
blocktype = _fileHandle->readUint16LE();
numblock++;
switch (blocktype) {
case 0x4E52: // 'NR'
// Names of rooms. Maybe we should put them into a table, for use by the debugger?
for (int room; (room = _fileHandle->readByte()); ) {
char buf[10];
_fileHandle->read(buf, 9);
buf[9] = 0;
for (int i = 0; i < 9; i++)
buf[i] ^= 0xFF;
debug(5, "Room %d: '%s'", room, buf);
}
break;
case 0x5230: // 'R0'
readResTypeList(rtRoom, "room");
break;
case 0x5330: // 'S0'
readResTypeList(rtScript, "script");
break;
case 0x4E30: // 'N0'
readResTypeList(rtSound, "sound");
break;
case 0x4330: // 'C0'
readResTypeList(rtCostume, "costume");
break;
case 0x4F30: // 'O0'
readGlobalObjects();
break;
default:
error("Bad ID %c%c found in directory!", blocktype & 0xFF, blocktype >> 8);
}
}
closeRoom();
}
void ScummEngine_v4::loadCharset(int no) {
uint32 size;
memset(_charsetData, 0, sizeof(_charsetData));
checkRange(4, 0, no, "Loading illegal charset %d");
closeRoom();
Common::File file;
char buf[20];
sprintf(buf, "%03d.LFL", 900 + no);
file.open(buf);
if (file.isOpen() == false) {
error("loadCharset(%d): Missing file charset: %s", no, buf);
}
size = file.readUint32LE() + 11;
file.read(res.createResource(rtCharset, no, size), size);
}
void ScummEngine_v4::readMAXS(int blockSize) {
// FIXME - I'm not sure for those values yet, they will have to be rechecked
_numVariables = 800; // 800
_numBitVariables = 4096; // 2048
_numLocalObjects = 200; // 200
_numArray = 50;
_numVerbs = 100;
_numNewNames = 50;
_objectRoomTable = NULL;
_numCharsets = 9; // 9
_numInventory = 80; // 80
_numGlobalScripts = 200;
_numFlObject = 50;
_shadowPaletteSize = 256;
_shadowPalette = (byte *) calloc(_shadowPaletteSize, 1); // FIXME - needs to be removed later
}
void ScummEngine_v4::readGlobalObjects() {
int i;
int num = _fileHandle->readUint16LE();
assert(num == _numGlobalObjects);
uint32 bits;
byte tmp;
for (i = 0; i != num; i++) {
bits = _fileHandle->readByte();
bits |= _fileHandle->readByte() << 8;
bits |= _fileHandle->readByte() << 16;
_classData[i] = bits;
tmp = _fileHandle->readByte();
_objectOwnerTable[i] = tmp & OF_OWNER_MASK;
_objectStateTable[i] = tmp >> OF_STATE_SHL;
}
// FIXME: Indy3 FM-TOWNS has 32 extra bytes of unknown meaning
if (_game.id == GID_INDY3 && _game.platform == Common::kPlatformFMTowns)
_fileHandle->seek(32, SEEK_CUR);
}
} // End of namespace Scumm
|
