author | llornkcor <llornkcor> | 2002-07-20 22:07:31 (UTC) |
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committer | llornkcor <llornkcor> | 2002-07-20 22:07:31 (UTC) |
commit | 2342d48be31847e7ead9d1cc682452e8f0122351 (patch) (unidiff) | |
tree | 8329bb94e9d429c905a0ef6b881cf1c0f775bf14 /core/multimedia/opieplayer/modplug/load_far.cpp | |
parent | 0f24c1fb86d3bb58d8696358b824c0e01752b10d (diff) | |
download | opie-2342d48be31847e7ead9d1cc682452e8f0122351.zip opie-2342d48be31847e7ead9d1cc682452e8f0122351.tar.gz opie-2342d48be31847e7ead9d1cc682452e8f0122351.tar.bz2 |
initial commit of modplugin
Diffstat (limited to 'core/multimedia/opieplayer/modplug/load_far.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | core/multimedia/opieplayer/modplug/load_far.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/core/multimedia/opieplayer/modplug/load_far.cpp b/core/multimedia/opieplayer/modplug/load_far.cpp new file mode 100644 index 0000000..32bc431 --- a/dev/null +++ b/core/multimedia/opieplayer/modplug/load_far.cpp | |||
@@ -0,0 +1,263 @@ | |||
1 | /* | ||
2 | * This program is free software; you can redistribute it and modify it | ||
3 | * under the terms of the GNU General Public License as published by the | ||
4 | * Free Software Foundation; either version 2 of the license or (at your | ||
5 | * option) any later version. | ||
6 | * | ||
7 | * Authors: Olivier Lapicque <olivierl@jps.net> | ||
8 | */ | ||
9 | |||
10 | //////////////////////////////////////// | ||
11 | // Farandole (FAR) module loader // | ||
12 | //////////////////////////////////////// | ||
13 | #include "stdafx.h" | ||
14 | #include "sndfile.h" | ||
15 | |||
16 | //#pragma warning(disable:4244) | ||
17 | |||
18 | #define FARFILEMAGIC 0xFE524146// "FAR" | ||
19 | |||
20 | #pragma pack(1) | ||
21 | |||
22 | typedef struct FARHEADER1 | ||
23 | { | ||
24 | DWORD id; // file magic FAR= | ||
25 | CHAR songname[40]; // songname | ||
26 | CHAR magic2[3]; // 13,10,26 | ||
27 | WORD headerlen; // remaining length of header in bytes | ||
28 | BYTE version; // 0xD1 | ||
29 | BYTE onoff[16]; | ||
30 | BYTE edit1[9]; | ||
31 | BYTE speed; | ||
32 | BYTE panning[16]; | ||
33 | BYTE edit2[4]; | ||
34 | WORD stlen; | ||
35 | } Q_PACKED FARHEADER1; | ||
36 | |||
37 | typedef struct FARHEADER2 | ||
38 | { | ||
39 | BYTE orders[256]; | ||
40 | BYTE numpat; | ||
41 | BYTE snglen; | ||
42 | BYTE loopto; | ||
43 | WORD patsiz[256]; | ||
44 | } Q_PACKED FARHEADER2; | ||
45 | |||
46 | typedef struct FARSAMPLE | ||
47 | { | ||
48 | CHAR samplename[32]; | ||
49 | DWORD length; | ||
50 | BYTE finetune; | ||
51 | BYTE volume; | ||
52 | DWORD reppos; | ||
53 | DWORD repend; | ||
54 | BYTE type; | ||
55 | BYTE loop; | ||
56 | } Q_PACKED FARSAMPLE; | ||
57 | |||
58 | #pragma pack() | ||
59 | |||
60 | |||
61 | BOOL CSoundFile::ReadFAR(const BYTE *lpStream, DWORD dwMemLength) | ||
62 | //--------------------------------------------------------------- | ||
63 | { | ||
64 | FARHEADER1 *pmh1 = (FARHEADER1 *)lpStream; | ||
65 | FARHEADER2 *pmh2; | ||
66 | DWORD dwMemPos = sizeof(FARHEADER1); | ||
67 | UINT headerlen; | ||
68 | BYTE samplemap[8]; | ||
69 | |||
70 | if ((!lpStream) || (dwMemLength < 1024) || (pmh1->id != FARFILEMAGIC) | ||
71 | || (pmh1->magic2[0] != 13) || (pmh1->magic2[1] != 10) || (pmh1->magic2[2] != 26)) return FALSE; | ||
72 | headerlen = pmh1->headerlen; | ||
73 | if ((headerlen >= dwMemLength) || (dwMemPos + pmh1->stlen + sizeof(FARHEADER2) >= dwMemLength)) return FALSE; | ||
74 | // Globals | ||
75 | m_nType = MOD_TYPE_FAR; | ||
76 | m_nChannels = 16; | ||
77 | m_nInstruments = 0; | ||
78 | m_nSamples = 0; | ||
79 | m_nSongPreAmp = 0x20; | ||
80 | m_nDefaultSpeed = pmh1->speed; | ||
81 | m_nDefaultTempo = 80; | ||
82 | m_nDefaultGlobalVolume = 256; | ||
83 | |||
84 | memcpy(m_szNames[0], pmh1->songname, 32); | ||
85 | // Channel Setting | ||
86 | for (UINT nchpan=0; nchpan<16; nchpan++) | ||
87 | { | ||
88 | ChnSettings[nchpan].dwFlags = 0; | ||
89 | ChnSettings[nchpan].nPan = ((pmh1->panning[nchpan] & 0x0F) << 4) + 8; | ||
90 | ChnSettings[nchpan].nVolume = 64; | ||
91 | } | ||
92 | // Reading comment | ||
93 | if (pmh1->stlen) | ||
94 | { | ||
95 | UINT szLen = pmh1->stlen; | ||
96 | if (szLen > dwMemLength - dwMemPos) szLen = dwMemLength - dwMemPos; | ||
97 | if ((m_lpszSongComments = new char[szLen + 1]) != NULL) | ||
98 | { | ||
99 | memcpy(m_lpszSongComments, lpStream+dwMemPos, szLen); | ||
100 | m_lpszSongComments[szLen] = 0; | ||
101 | } | ||
102 | dwMemPos += pmh1->stlen; | ||
103 | } | ||
104 | // Reading orders | ||
105 | pmh2 = (FARHEADER2 *)(lpStream + dwMemPos); | ||
106 | dwMemPos += sizeof(FARHEADER2); | ||
107 | if (dwMemPos >= dwMemLength) return TRUE; | ||
108 | for (UINT iorder=0; iorder<MAX_ORDERS; iorder++) | ||
109 | { | ||
110 | Order[iorder] = (iorder <= pmh2->snglen) ? pmh2->orders[iorder] : 0xFF; | ||
111 | } | ||
112 | m_nRestartPos = pmh2->loopto; | ||
113 | // Reading Patterns | ||
114 | dwMemPos += headerlen - (869 + pmh1->stlen); | ||
115 | if (dwMemPos >= dwMemLength) return TRUE; | ||
116 | |||
117 | WORD *patsiz = (WORD *)pmh2->patsiz; | ||
118 | for (UINT ipat=0; ipat<256; ipat++) if (patsiz[ipat]) | ||
119 | { | ||
120 | UINT patlen = patsiz[ipat]; | ||
121 | if ((ipat >= MAX_PATTERNS) || (patsiz[ipat] < 2)) | ||
122 | { | ||
123 | dwMemPos += patlen; | ||
124 | continue; | ||
125 | } | ||
126 | if (dwMemPos + patlen >= dwMemLength) return TRUE; | ||
127 | UINT rows = (patlen - 2) >> 6; | ||
128 | if (!rows) | ||
129 | { | ||
130 | dwMemPos += patlen; | ||
131 | continue; | ||
132 | } | ||
133 | if (rows > 256) rows = 256; | ||
134 | if (rows < 16) rows = 16; | ||
135 | PatternSize[ipat] = rows; | ||
136 | if ((Patterns[ipat] = AllocatePattern(rows, m_nChannels)) == NULL) return TRUE; | ||
137 | MODCOMMAND *m = Patterns[ipat]; | ||
138 | UINT patbrk = lpStream[dwMemPos]; | ||
139 | const BYTE *p = lpStream + dwMemPos + 2; | ||
140 | UINT max = rows*16*4; | ||
141 | if (max > patlen-2) max = patlen-2; | ||
142 | for (UINT len=0; len<max; len += 4, m++) | ||
143 | { | ||
144 | BYTE note = p[len]; | ||
145 | BYTE ins = p[len+1]; | ||
146 | BYTE vol = p[len+2]; | ||
147 | BYTE eff = p[len+3]; | ||
148 | if (note) | ||
149 | { | ||
150 | m->instr = ins + 1; | ||
151 | m->note = note + 36; | ||
152 | } | ||
153 | if (vol & 0x0F) | ||
154 | { | ||
155 | m->volcmd = VOLCMD_VOLUME; | ||
156 | m->vol = (vol & 0x0F) << 2; | ||
157 | if (m->vol <= 4) m->vol = 0; | ||
158 | } | ||
159 | switch(eff & 0xF0) | ||
160 | { | ||
161 | // 1.x: Portamento Up | ||
162 | case 0x10: | ||
163 | m->command = CMD_PORTAMENTOUP; | ||
164 | m->param = eff & 0x0F; | ||
165 | break; | ||
166 | // 2.x: Portamento Down | ||
167 | case 0x20: | ||
168 | m->command = CMD_PORTAMENTODOWN; | ||
169 | m->param = eff & 0x0F; | ||
170 | break; | ||
171 | // 3.x: Tone-Portamento | ||
172 | case 0x30: | ||
173 | m->command = CMD_TONEPORTAMENTO; | ||
174 | m->param = (eff & 0x0F) << 2; | ||
175 | break; | ||
176 | // 4.x: Retrigger | ||
177 | case 0x40: | ||
178 | m->command = CMD_RETRIG; | ||
179 | m->param = 6 / (1+(eff&0x0F)) + 1; | ||
180 | break; | ||
181 | // 5.x: Set Vibrato Depth | ||
182 | case 0x50: | ||
183 | m->command = CMD_VIBRATO; | ||
184 | m->param = (eff & 0x0F); | ||
185 | break; | ||
186 | // 6.x: Set Vibrato Speed | ||
187 | case 0x60: | ||
188 | m->command = CMD_VIBRATO; | ||
189 | m->param = (eff & 0x0F) << 4; | ||
190 | break; | ||
191 | // 7.x: Vol Slide Up | ||
192 | case 0x70: | ||
193 | m->command = CMD_VOLUMESLIDE; | ||
194 | m->param = (eff & 0x0F) << 4; | ||
195 | break; | ||
196 | // 8.x: Vol Slide Down | ||
197 | case 0x80: | ||
198 | m->command = CMD_VOLUMESLIDE; | ||
199 | m->param = (eff & 0x0F); | ||
200 | break; | ||
201 | // A.x: Port to vol | ||
202 | case 0xA0: | ||
203 | m->volcmd = VOLCMD_VOLUME; | ||
204 | m->vol = ((eff & 0x0F) << 2) + 4; | ||
205 | break; | ||
206 | // B.x: Set Balance | ||
207 | case 0xB0: | ||
208 | m->command = CMD_PANNING8; | ||
209 | m->param = (eff & 0x0F) << 4; | ||
210 | break; | ||
211 | // F.x: Set Speed | ||
212 | case 0xF0: | ||
213 | m->command = CMD_SPEED; | ||
214 | m->param = eff & 0x0F; | ||
215 | break; | ||
216 | default: | ||
217 | if ((patbrk) &&(patbrk+1 == (len >> 6)) && (patbrk+1 != rows-1)) | ||
218 | { | ||
219 | m->command = CMD_PATTERNBREAK; | ||
220 | patbrk = 0; | ||
221 | } | ||
222 | } | ||
223 | } | ||
224 | dwMemPos += patlen; | ||
225 | } | ||
226 | // Reading samples | ||
227 | if (dwMemPos + 8 >= dwMemLength) return TRUE; | ||
228 | memcpy(samplemap, lpStream+dwMemPos, 8); | ||
229 | dwMemPos += 8; | ||
230 | MODINSTRUMENT *pins = &Ins[1]; | ||
231 | for (UINT ismp=0; ismp<64; ismp++, pins++) if (samplemap[ismp >> 3] & (1 << (ismp & 7))) | ||
232 | { | ||
233 | if (dwMemPos + sizeof(FARSAMPLE) > dwMemLength) return TRUE; | ||
234 | FARSAMPLE *pfs = (FARSAMPLE *)(lpStream + dwMemPos); | ||
235 | dwMemPos += sizeof(FARSAMPLE); | ||
236 | m_nSamples = ismp + 1; | ||
237 | memcpy(m_szNames[ismp+1], pfs->samplename, 32); | ||
238 | pins->nLength = pfs->length; | ||
239 | pins->nLoopStart = pfs->reppos; | ||
240 | pins->nLoopEnd = pfs->repend; | ||
241 | pins->nFineTune = 0; | ||
242 | pins->nC4Speed = 8363*2; | ||
243 | pins->nGlobalVol = 64; | ||
244 | pins->nVolume = pfs->volume << 4; | ||
245 | pins->uFlags = 0; | ||
246 | if ((pins->nLength > 3) && (dwMemPos + 4 < dwMemLength)) | ||
247 | { | ||
248 | if (pfs->type & 1) | ||
249 | { | ||
250 | pins->uFlags |= CHN_16BIT; | ||
251 | pins->nLength >>= 1; | ||
252 | pins->nLoopStart >>= 1; | ||
253 | pins->nLoopEnd >>= 1; | ||
254 | } | ||
255 | if ((pfs->loop & 8) && (pins->nLoopEnd > 4)) pins->uFlags |= CHN_LOOP; | ||
256 | ReadSample(pins, (pins->uFlags & CHN_16BIT) ? RS_PCM16S : RS_PCM8S, | ||
257 | (LPSTR)(lpStream+dwMemPos), dwMemLength - dwMemPos); | ||
258 | } | ||
259 | dwMemPos += pfs->length; | ||
260 | } | ||
261 | return TRUE; | ||
262 | } | ||
263 | |||