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
|
/*
* Adplug - Replayer for many OPL2/OPL3 audio file formats.
* Copyright (C) 1999 - 2007 Simon Peter, <dn.tlp@gmx.net>, et al.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* amd.cpp - AMD Loader by Simon Peter <dn.tlp@gmx.net>
*/
#include <string.h>
#include "amd.h"
#include "debug.h"
CPlayer *CamdLoader::factory(Copl *newopl)
{
return new CamdLoader(newopl);
}
bool CamdLoader::load(const char *filename, const CFileProvider &fp)
{
binistream *f = fp.open(filename); if(!f) return false;
struct {
char id[9];
unsigned char version;
} header;
int i, j, k, t, numtrax, maxi = 0;
unsigned char buf, buf2, buf3;
const unsigned char convfx[10] = {0,1,2,9,17,11,13,18,3,14};
const unsigned char convvol[64] = {
0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9, 0xa, 0xa, 0xb,
0xc, 0xc, 0xd, 0xe, 0xe, 0xf, 0x10, 0x10, 0x11, 0x12, 0x13, 0x14, 0x14,
0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x21,
0x22, 0x23, 0x25, 0x26, 0x28, 0x29, 0x2b, 0x2d, 0x2e, 0x30, 0x32, 0x35,
0x37, 0x3a, 0x3c, 0x3f
};
// file validation section
if(fp.filesize(f) < 1072) { fp.close(f); return false; }
f->seek(1062); f->readString(header.id, 9);
header.version = f->readInt(1);
if(strncmp(header.id, "<o\xefQU\xeeRoR", 9) &&
strncmp(header.id, "MaDoKaN96", 9)) { fp.close(f); return false; }
// load section
memset(inst, 0, sizeof(inst));
f->seek(0);
f->readString(songname, sizeof(songname));
f->readString(author, sizeof(author));
for(i = 0; i < 26; i++) {
f->readString(instname[i], 23);
for(j = 0; j < 11; j++) inst[i].data[j] = f->readInt(1);
}
length = f->readInt(1); nop = f->readInt(1) + 1;
for(i=0;i<128;i++) order[i] = f->readInt(1);
f->seek(10, binio::Add);
if(header.version == 0x10) { // unpacked module
maxi = nop * 9;
for(i=0;i<64*9;i++)
trackord[i/9][i%9] = i+1;
t = 0;
while(!f->ateof()) {
for(j=0;j<64;j++)
for(i=t;i<t+9;i++) {
buf = f->readInt(1);
tracks[i][j].param2 = (buf&127) % 10;
tracks[i][j].param1 = (buf&127) / 10;
buf = f->readInt(1);
tracks[i][j].inst = buf >> 4;
tracks[i][j].command = buf & 0x0f;
buf = f->readInt(1);
if(buf >> 4) // fix bug in AMD save routine
tracks[i][j].note = ((buf & 14) >> 1) * 12 + (buf >> 4);
else
tracks[i][j].note = 0;
tracks[i][j].inst += (buf & 1) << 4;
}
t += 9;
}
} else { // packed module
for(i=0;i<nop;i++)
for(j=0;j<9;j++)
trackord[i][j] = f->readInt(2) + 1;
numtrax = f->readInt(2);
for(k=0;k<numtrax;k++) {
i = f->readInt(2);
if(i > 575) i = 575; // fix corrupted modules
maxi = (i + 1 > maxi ? i + 1 : maxi);
j = 0;
do {
buf = f->readInt(1);
if(buf & 128) {
for(t = j; t < j + (buf & 127) && t < 64; t++) {
tracks[i][t].command = 0;
tracks[i][t].inst = 0;
tracks[i][t].note = 0;
tracks[i][t].param1 = 0;
tracks[i][t].param2 = 0;
}
j += buf & 127;
continue;
}
tracks[i][j].param2 = buf % 10;
tracks[i][j].param1 = buf / 10;
buf = f->readInt(1);
tracks[i][j].inst = buf >> 4;
tracks[i][j].command = buf & 0x0f;
buf = f->readInt(1);
if(buf >> 4) // fix bug in AMD save routine
tracks[i][j].note = ((buf & 14) >> 1) * 12 + (buf >> 4);
else
tracks[i][j].note = 0;
tracks[i][j].inst += (buf & 1) << 4;
j++;
} while(j<64);
}
}
fp.close(f);
// convert to protracker replay data
bpm = 50; restartpos = 0; flags = Decimal;
for(i=0;i<26;i++) { // convert instruments
buf = inst[i].data[0];
buf2 = inst[i].data[1];
inst[i].data[0] = inst[i].data[10];
inst[i].data[1] = buf;
buf = inst[i].data[2];
inst[i].data[2] = inst[i].data[5];
buf3 = inst[i].data[3];
inst[i].data[3] = buf;
buf = inst[i].data[4];
inst[i].data[4] = inst[i].data[7];
inst[i].data[5] = buf3;
buf3 = inst[i].data[6];
inst[i].data[6] = inst[i].data[8];
inst[i].data[7] = buf;
inst[i].data[8] = inst[i].data[9];
inst[i].data[9] = buf2;
inst[i].data[10] = buf3;
for(j=0;j<23;j++) // convert names
if(instname[i][j] == '\xff')
instname[i][j] = '\x20';
}
for(i=0;i<maxi;i++) // convert patterns
for(j=0;j<64;j++) {
tracks[i][j].command = convfx[tracks[i][j].command];
// extended command
if(tracks[i][j].command == 14) {
if(tracks[i][j].param1 == 2) {
tracks[i][j].command = 10;
tracks[i][j].param1 = tracks[i][j].param2;
tracks[i][j].param2 = 0;
}
if(tracks[i][j].param1 == 3) {
tracks[i][j].command = 10;
tracks[i][j].param1 = 0;
}
}
// fix volume
if(tracks[i][j].command == 17) {
int vol = convvol[tracks[i][j].param1 * 10 + tracks[i][j].param2];
if(vol > 63) vol = 63;
tracks[i][j].param1 = vol / 10;
tracks[i][j].param2 = vol % 10;
}
}
rewind(0);
return true;
}
float CamdLoader::getrefresh()
{
if(tempo)
return (float) (tempo);
else
return 18.2f;
}
|
