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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
/*
* This code is based on original Hugo Trilogy source code
*
* Copyright (c) 1989-1995 David P. Gray
*
*/
#include "common/debug.h"
#include "common/system.h"
#include "common/textconsole.h"
#include "hugo/hugo.h"
#include "hugo/file.h"
#include "hugo/util.h"
namespace Hugo {
FileManager_v1w::FileManager_v1w(HugoEngine *vm) : FileManager_v2w(vm) {
}
FileManager_v1w::~FileManager_v1w() {
}
/**
* Open and read in an overlay file, close file
*/
void FileManager_v1w::readOverlay(const int screenNum, image_pt image, ovl_t overlayType) {
debugC(1, kDebugFile, "readOverlay(%d, ...)", screenNum);
image_pt tmpImage = image; // temp ptr to overlay file
_sceneryArchive1.seek((uint32)screenNum * sizeof(sceneBlock_t), SEEK_SET);
sceneBlock_t sceneBlock; // Database header entry
sceneBlock.scene_off = _sceneryArchive1.readUint32LE();
sceneBlock.scene_len = _sceneryArchive1.readUint32LE();
sceneBlock.b_off = _sceneryArchive1.readUint32LE();
sceneBlock.b_len = _sceneryArchive1.readUint32LE();
sceneBlock.o_off = _sceneryArchive1.readUint32LE();
sceneBlock.o_len = _sceneryArchive1.readUint32LE();
sceneBlock.ob_off = _sceneryArchive1.readUint32LE();
sceneBlock.ob_len = _sceneryArchive1.readUint32LE();
uint32 i = 0;
switch (overlayType) {
case kOvlBoundary:
_sceneryArchive1.seek(sceneBlock.b_off, SEEK_SET);
i = sceneBlock.b_len;
break;
case kOvlOverlay:
_sceneryArchive1.seek(sceneBlock.o_off, SEEK_SET);
i = sceneBlock.o_len;
break;
case kOvlBase:
_sceneryArchive1.seek(sceneBlock.ob_off, SEEK_SET);
i = sceneBlock.ob_len;
break;
default:
error("Bad overlayType: %d", overlayType);
break;
}
if (i == 0) {
memset(image, 0, kOvlSize);
return;
}
_sceneryArchive1.read(tmpImage, kOvlSize);
}
} // End of namespace Hugo
|
