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
|
/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "file.h"
#define MD5_COMPUTE_SIZE 1024
uint32 File::computeMD5() {
uint32 total = 0;
seek(0);
for (int idx = 0; idx < MD5_COMPUTE_SIZE; ++idx)
total += readByte();
seek(0);
return total;
}
void Surface::setPaletteEntry(byte index, byte r, byte g, byte b) {
byte *pal = _palette + index * 3;
pal[0] = r;
pal[1] = g;
pal[2] = b;
}
void Surface::saveToFile(const char *filename) {
WriteFile f(filename);
f.writeByte('B');
f.writeByte('M');
f.writeLong(0x436 + _w * _h + 2); // File size
f.writeWord(0); // Custom 1
f.writeWord(0); // Custom 2
f.writeLong(0x436); // Pixels offset
int pitch = _w;
if (pitch % 4)
pitch += 4 - (pitch % 4);
f.writeLong(40); // Info size
f.writeLong(_w); // Width
f.writeLong(_h); // Height
f.writeWord(1); // # Planes
f.writeWord(8); // Bits per pixel
f.writeLong(0); // Compression
f.writeLong(pitch * _h); // Image size
f.writeLong(3790); // Pixels per meter X
f.writeLong(3800); // Pixels per meter Y
f.writeLong(0); // color count
f.writeLong(0); // important colors
// Palette
byte *pal = _palette;
for (int idx = 0; idx < 256; ++idx, pal += 3) {
f.write(pal, 3);
f.writeByte(0);
}
// Write out each line from the bottom up
for (int y = _h - 1; y >= 0; --y) {
byte *lineP = getBasePtr(0, y);
f.write(lineP, _w);
if (_w % 4)
f.writeRepeating(0, 4 - (_w % 4));
}
}
|
