Mercurial > hg > dmlib
annotate minijss/jloadxm.c @ 796:97ecc0a9c21f
Silence some "probing".
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Fri, 18 Oct 2013 19:47:30 +0300 |
| parents | a4cf7716ba58 |
| children | b8bfd9fbe1d9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * miniJSS - Fast Tracker ][ (XM) module loader | |
| 3 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 4 * (C) Copyright 2006-2007 Tecnic Software productions (TNSP) | |
| 5 * | |
| 6 * TO DO: | |
| 7 * - Add support for 1.02/1.03 XM-format versions. | |
| 8 * (Not very useful, but if it's not too hard, then do it) | |
| 9 */ | |
| 10 #include "jssmod.h" | |
| 11 #include <string.h> | |
| 12 | |
| 13 | |
| 14 /* XM value limit definitions | |
| 15 */ | |
| 16 #define XM_MaxChannels (32) | |
| 17 #define XM_MaxPatterns (256) | |
| 18 #define XM_MaxOrders (255) | |
| 19 #define XM_MaxInstruments (128) | |
| 20 #define XM_MaxInstSamples (16) | |
| 21 #define XM_MaxEnvPoints (12) | |
| 22 #define XM_MaxNotes (96) | |
| 23 #define XM_MaxSampleVolume (64) | |
| 24 | |
| 25 | |
| 26 /* XM format structures | |
| 27 */ | |
| 28 typedef struct | |
| 29 { | |
| 30 char idMagic[17]; // XM header ID "Extended Module: " | |
| 31 char songName[20]; // Module song name | |
| 32 Uint8 unUsed1A; // ALWAYS 0x1a | |
| 33 char trackerName[20]; // ID-string of tracker software | |
| 34 Uint16 version; // XM-version 0x0104 | |
| 35 Uint32 headSize; // Module header size, FROM THIS POINT! | |
| 36 Uint16 norders, // Number of orders | |
| 37 defRestartPos, // Default song restart position | |
| 38 nchannels, // Number of channels | |
| 39 npatterns, // Number of patterns | |
| 40 ninstruments, // Number of instruments | |
|
552
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
41 flags, // Module flags: |
|
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
42 // bit0: 0 = Amiga frequency table |
|
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
43 // 1 = Linear frequency table |
|
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
44 // |
| 0 | 45 defSpeed, // Default speed |
| 46 defTempo; // Default tempo | |
| 47 Uint8 orderList[256]; // Order list | |
| 48 } XMHeader; | |
| 49 | |
| 50 | |
| 51 typedef struct | |
| 52 { | |
| 53 Uint32 headSize; // Instrument header size (see docs!) | |
| 54 char instName[22]; // Name/description | |
| 55 Uint8 instType; // Type | |
| 56 Uint16 nsamples; // Number of samples | |
| 57 } XMInstrument1; | |
| 58 | |
| 59 | |
| 60 typedef struct | |
| 61 { | |
| 62 Uint16 frame, value; | |
|
552
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
63 } XMEnvPoint; |
| 0 | 64 |
| 65 | |
| 66 typedef struct | |
| 67 { | |
| 68 Uint8 flags, npoints, sustain, loopS, loopE; | |
|
552
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
69 XMEnvPoint points[XM_MaxEnvPoints]; |
|
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
70 } XMEnvelope; |
| 0 | 71 |
| 72 | |
| 73 typedef struct | |
| 74 { | |
| 75 Uint32 headSize; // Header size | |
| 76 Uint8 sNumForNotes[XM_MaxNotes]; // Sample numbers for notes | |
|
552
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
77 XMEnvelope volumeEnv, panningEnv; |
| 0 | 78 Uint8 vibratoType, vibratoSweep, vibratoDepth, vibratoRate; |
| 79 | |
| 80 Uint16 fadeOut, ARESERVED; | |
| 81 } XMInstrument2; | |
| 82 | |
| 83 | |
| 84 typedef struct | |
| 85 { | |
| 86 Uint32 size, loopS, loopL; | |
| 87 Uint8 volume; | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
88 Sint8 fineTune; |
| 0 | 89 Uint8 type, panning; |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
90 Sint8 relNote; |
| 0 | 91 Uint8 ARESERVED; |
| 92 char sampleName[22]; | |
| 93 } XMSample; | |
| 94 | |
| 95 | |
| 96 typedef struct | |
| 97 { | |
| 98 Uint32 headSize; | |
| 99 Uint8 packing; | |
| 100 Uint16 nrows, size; | |
| 101 } XMPattern; | |
| 102 | |
| 103 | |
| 104 | |
| 105 /* Unpack XM-format pattern from file-stream into JSS-pattern structure | |
| 106 */ | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
107 #define JSGETBYTE(XV) do { \ |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
108 size--; \ |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
109 if (size < 0) \ |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
110 JSSERROR(DMERR_OUT_OF_DATA, DMERR_OUT_OF_DATA, \ |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
111 "Unexpected end of packed pattern data.\n"); \ |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
112 XV = dmfgetc(inFile); \ |
| 0 | 113 } while (0) |
| 114 | |
| 115 | |
|
313
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
116 static int jssXMConvertNote(int val) |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
117 { |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
118 if (val < 1 || val > 97) |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
119 return jsetNotSet; |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
120 else if (val == 97) |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
121 return jsetNoteOff; |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
122 else |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
123 return val - 1; |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
124 } |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
125 |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
126 |
| 0 | 127 static int jssXMUnpackPattern(DMResource *inFile, int size, JSSPattern *pattern) |
| 128 { | |
| 129 int packb, row, channel, tmp; | |
| 130 JSSNote *pnote; | |
| 131 assert(pattern != NULL); | |
| 132 | |
| 133 pnote = pattern->data; | |
| 134 | |
|
313
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
135 for (row = 0; row < pattern->nrows && size > 0; row++) |
|
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
136 for (channel = 0; channel < pattern->nchannels && size > 0; channel++) |
| 0 | 137 { |
| 138 JSGETBYTE(packb); | |
| 139 if (packb & 0x80) | |
| 140 { | |
| 141 if (packb & 0x01) | |
| 142 { | |
| 143 // PACK 0x01: Read note | |
| 144 JSGETBYTE(tmp); | |
|
313
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
145 pnote->note = jssXMConvertNote(tmp); |
| 0 | 146 } |
| 147 | |
| 148 if (packb & 0x02) | |
| 149 { | |
| 150 // PACK 0x02: Read instrument | |
| 151 JSGETBYTE(tmp); | |
| 152 pnote->instrument = (tmp > 0) ? tmp - 1 : jsetNotSet; | |
| 153 } | |
| 154 | |
| 155 if (packb & 0x04) | |
| 156 { | |
| 157 // PACK 0x04: Read volume | |
| 158 JSGETBYTE(tmp); | |
| 159 pnote->volume = (tmp >= 0x10) ? tmp - 0x10 : jsetNotSet; | |
| 160 } | |
| 161 | |
| 162 if (packb & 0x08) | |
| 163 { | |
| 164 // PACK 0x08: Read effect | |
| 165 JSGETBYTE(pnote->effect); | |
| 166 pnote->param = 0; | |
| 167 } | |
| 168 | |
| 169 if (packb & 0x10) | |
| 170 { | |
| 171 // PACK 0x10: Read effect parameter | |
| 172 JSGETBYTE(pnote->param); | |
| 173 if (pnote->effect == jsetNotSet && pnote->param != 0) | |
| 174 pnote->effect = 0; | |
| 175 } | |
| 176 } | |
| 177 else | |
| 178 { | |
| 179 // All data available | |
|
313
a89500f26dde
Cleanup the pattern decoder a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
183
diff
changeset
|
180 pnote->note = jssXMConvertNote(packb & 0x7f); |
| 0 | 181 |
| 182 // Get instrument | |
| 183 JSGETBYTE(tmp); | |
| 184 pnote->instrument = (tmp > 0) ? tmp - 1 : jsetNotSet; | |
| 185 | |
| 186 // Get volume | |
| 187 JSGETBYTE(tmp); | |
| 188 pnote->volume = (tmp >= 0x10) ? tmp - 0x10 : jsetNotSet; | |
| 189 | |
| 190 // Get effect | |
| 191 JSGETBYTE(pnote->effect); | |
| 192 | |
| 193 // Get parameter | |
| 194 JSGETBYTE(pnote->param); | |
| 195 if (pnote->effect == 0 && pnote->param == 0) | |
| 196 pnote->effect = pnote->param = jsetNotSet; | |
| 197 } | |
| 198 pnote++; | |
| 199 } | |
| 200 | |
| 201 // Check the state | |
| 202 if (size > 0) | |
| 203 { | |
| 204 // Some data left unparsed | |
| 205 JSSWARNING(DMERR_EXTRA_DATA, DMERR_EXTRA_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
206 "Unparsed data after pattern (%d bytes), possibly broken file.\n", size); |
| 0 | 207 } |
| 208 | |
| 209 return DMERR_OK; | |
| 210 } | |
| 211 | |
| 212 | |
| 213 /* Convert XM envelope structure to JSS envelope structure | |
| 214 */ | |
|
552
d4cee32e7050
Rename internal structures, cosmetics.
Matti Hamalainen <ccr@tnsp.org>
parents:
313
diff
changeset
|
215 static int jssXMConvertEnvelope(JSSEnvelope * d, XMEnvelope * s, char * e, int instr) |
| 0 | 216 { |
| 217 int i; | |
| 218 (void) e; (void) instr; | |
| 219 | |
| 220 // Convert envelope points | |
| 221 for (i = 0; i < XM_MaxEnvPoints; i++) | |
| 222 { | |
|
183
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
223 d->points[i].frame = s->points[i].frame; |
|
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
224 d->points[i].value = s->points[i].value; |
| 0 | 225 } |
| 226 | |
| 227 // Convert other values | |
|
183
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
228 d->npoints = s->npoints; |
|
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
229 d->sustain = s->sustain; |
|
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
230 d->loopS = s->loopS; |
|
a65f0c3deaa7
Some more player logic cleanups and variable renames.
Matti Hamalainen <ccr@tnsp.org>
parents:
98
diff
changeset
|
231 d->loopE = s->loopE; |
| 0 | 232 |
| 233 // Check if the envelope is used | |
| 234 if (s->flags & 0x01) | |
| 235 { | |
| 236 // Convert envelope flags | |
| 237 d->flags = jenvfUsed; | |
| 238 if (s->flags & 0x02) | |
| 239 d->flags |= jenvfSustain; | |
| 240 | |
| 241 if (s->flags & 0x04) | |
| 242 d->flags |= jenvfLooped; | |
| 243 | |
| 244 // Check other values | |
| 245 if (s->npoints > XM_MaxEnvPoints) | |
| 246 { | |
| 247 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
248 "Inst#%d/%s-env: nPoints > MAX, possibly broken file.\n", instr, e); |
| 0 | 249 s->npoints = XM_MaxEnvPoints; |
| 250 } | |
| 251 | |
| 252 if ((d->flags & jenvfSustain) && s->sustain > s->npoints) | |
| 253 { | |
| 254 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
255 "Inst#%d/%s-env: iSustain > nPoints (%d > %d), possibly broken file.\n", |
| 0 | 256 instr, e, s->sustain, s->npoints); |
| 257 s->sustain = s->npoints; | |
| 258 } | |
| 259 | |
| 260 if ((d->flags & jenvfLooped) && s->loopE > s->npoints) | |
| 261 { | |
| 262 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
263 "Inst#%d/%s-env: loopE > nPoints (%d > %d), possibly broken file.\n", |
| 0 | 264 instr, e, s->loopE, s->npoints); |
| 265 s->loopE = s->npoints; | |
| 266 } | |
| 267 | |
| 268 if ((d->flags & jenvfLooped) && s->loopS > s->loopE) | |
| 269 { | |
| 270 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
271 "Inst#%d/%s-env: loopS > loopE (%d > %d), possibly broken file.\n", |
| 0 | 272 instr, e, s->loopS, s->loopE); |
| 273 s->loopS = 0; | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 return DMERR_OK; | |
| 278 } | |
| 279 | |
| 280 | |
| 281 /* Load XM-format extended instrument from file-stream into JSS module's given inst | |
| 282 */ | |
| 283 static int jssXMLoadExtInstrument(DMResource *inFile, int ninst, JSSModule *module) | |
| 284 { | |
| 285 XMInstrument1 xmI1; | |
| 286 off_t pos, remainder; | |
| 287 | |
| 288 // Get instrument header #1 | |
| 289 pos = dmftell(inFile); | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
290 if (!dmf_read_le32(inFile, &xmI1.headSize) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
291 !dmf_read_str(inFile, &xmI1.instName, sizeof(xmI1.instName)) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
292 !dmf_read_byte(inFile, &xmI1.instType) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
293 !dmf_read_le16(inFile, &xmI1.nsamples)) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
294 return DMERR_FREAD; |
| 0 | 295 |
| 296 // If there are samples, there is header #2 | |
| 297 if (xmI1.nsamples > 0) | |
| 298 { | |
| 299 int i, nsample, tmp; | |
| 300 int xmConvTable[XM_MaxInstruments + 1]; | |
| 301 JSSExtInstrument *pEInst; | |
| 302 JSSInstrument *pInst; | |
| 303 XMInstrument2 xmI2; | |
| 304 | |
| 305 // Allocate instrument | |
| 306 if ((pEInst = jssAllocateExtInstrument()) == NULL) | |
| 307 { | |
| 308 JSSERROR(DMERR_MALLOC, DMERR_MALLOC, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
309 "Could not allocate extended instrument structure #%d\n", ninst); |
| 0 | 310 } |
| 311 | |
| 312 module->extInstruments[ninst] = pEInst; | |
| 313 | |
| 314 // Get instrument header #2 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
315 if (!dmf_read_le32(inFile, &xmI2.headSize) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
316 !dmf_read_str(inFile, &xmI2.sNumForNotes, sizeof(xmI2.sNumForNotes))) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
317 { |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
318 JSSERROR(DMERR_FREAD, DMERR_FREAD, |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
319 "Could not read secondary instrument header #1 for #%d.\n", ninst); |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
320 } |
| 0 | 321 |
| 322 for (i = 0; i < XM_MaxEnvPoints; i++) | |
| 323 { | |
| 324 dmf_read_le16(inFile, &xmI2.volumeEnv.points[i].frame); | |
| 325 dmf_read_le16(inFile, &xmI2.volumeEnv.points[i].value); | |
| 326 } | |
| 327 | |
| 328 for (i = 0; i < XM_MaxEnvPoints; i++) | |
| 329 { | |
| 330 dmf_read_le16(inFile, &xmI2.panningEnv.points[i].frame); | |
| 331 dmf_read_le16(inFile, &xmI2.panningEnv.points[i].value); | |
| 332 } | |
| 333 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
334 if (!dmf_read_byte(inFile, &xmI2.volumeEnv.npoints) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
335 !dmf_read_byte(inFile, &xmI2.panningEnv.npoints) || |
| 0 | 336 |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
337 !dmf_read_byte(inFile, &xmI2.volumeEnv.sustain) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
338 !dmf_read_byte(inFile, &xmI2.volumeEnv.loopS) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
339 !dmf_read_byte(inFile, &xmI2.volumeEnv.loopE) || |
| 0 | 340 |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
341 !dmf_read_byte(inFile, &xmI2.panningEnv.sustain) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
342 !dmf_read_byte(inFile, &xmI2.panningEnv.loopS) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
343 !dmf_read_byte(inFile, &xmI2.panningEnv.loopE) || |
| 0 | 344 |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
345 !dmf_read_byte(inFile, &xmI2.volumeEnv.flags) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
346 !dmf_read_byte(inFile, &xmI2.panningEnv.flags) || |
| 0 | 347 |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
348 !dmf_read_byte(inFile, &xmI2.vibratoType) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
349 !dmf_read_byte(inFile, &xmI2.vibratoSweep) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
350 !dmf_read_byte(inFile, &xmI2.vibratoDepth) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
351 !dmf_read_byte(inFile, &xmI2.vibratoRate) || |
| 0 | 352 |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
353 !dmf_read_le16(inFile, &xmI2.fadeOut) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
354 !dmf_read_le16(inFile, &xmI2.ARESERVED)) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
355 { |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
356 JSSERROR(DMERR_FREAD, DMERR_FREAD, |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
357 "Could not read secondary instrument header #2 for #%d.\n", ninst); |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
358 } |
| 0 | 359 |
| 360 // Skip the extra data after header #2 | |
| 361 remainder = xmI1.headSize - (dmftell(inFile) - pos); | |
| 362 if (remainder > 0) | |
| 363 { | |
| 98 | 364 JSSDEBUG("xmI1#1 Skipping: %li\n", remainder); |
| 0 | 365 dmfseek(inFile, remainder, SEEK_CUR); |
| 366 } | |
| 367 | |
| 368 // Check and convert all ext instrument information | |
| 369 #ifndef JSS_LIGHT | |
| 370 pEInst->desc = jssASCIItoStr(xmI1.instName, 0, sizeof(xmI1.instName)); | |
| 371 #endif | |
| 372 jssXMConvertEnvelope(&pEInst->volumeEnv, &xmI2.volumeEnv, "vol", ninst); | |
| 373 jssXMConvertEnvelope(&pEInst->panningEnv, &xmI2.panningEnv, "pan", ninst); | |
| 374 | |
| 375 switch (xmI2.vibratoType) | |
| 376 { | |
| 377 case 0: pEInst->vibratoType = jvibSine; break; | |
| 378 case 1: pEInst->vibratoType = jvibRamp; break; | |
| 379 case 2: pEInst->vibratoType = jvibSquare; break; | |
| 380 case 3: pEInst->vibratoType = jvibRandom; break; | |
| 381 default: | |
| 382 pEInst->vibratoType = jvibSine; | |
| 383 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
| 384 "Invalid extinstrument vibrato type %d for inst #%d\n", ninst); | |
| 385 break; | |
| 386 } | |
| 387 pEInst->vibratoSweep = xmI2.vibratoSweep; | |
| 388 pEInst->vibratoDepth = xmI2.vibratoDepth; | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
389 pEInst->vibratoRate = xmI2.vibratoRate; |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
390 pEInst->fadeOut = xmI2.fadeOut; |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
391 pEInst->nsamples = xmI1.nsamples; |
| 0 | 392 |
| 393 // Initialize the SNumForNotes conversion table | |
| 394 for (i = 0; i < XM_MaxInstruments; i++) | |
| 395 xmConvTable[i] = jsetNotSet; | |
| 396 | |
| 397 // Read sample headers | |
| 398 for (nsample = 0; nsample < xmI1.nsamples; nsample++) | |
| 399 { | |
| 400 XMSample xmS; | |
| 401 | |
| 402 // Read header data | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
403 if (!dmf_read_le32(inFile, &xmS.size) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
404 !dmf_read_le32(inFile, &xmS.loopS) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
405 !dmf_read_le32(inFile, &xmS.loopL) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
406 !dmf_read_byte(inFile, &xmS.volume) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
407 !dmf_read_byte(inFile, (Uint8 *) &xmS.fineTune) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
408 !dmf_read_byte(inFile, &xmS.type) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
409 !dmf_read_byte(inFile, &xmS.panning) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
410 !dmf_read_byte(inFile, (Uint8 *) &xmS.relNote) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
411 !dmf_read_byte(inFile, &xmS.ARESERVED) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
412 !dmf_read_str(inFile, &xmS.sampleName, sizeof(xmS.sampleName))) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
413 { |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
414 JSSERROR(DMERR_FREAD, DMERR_FREAD, |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
415 "Error reading instrument sample header #%d/%d [%d]", |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
416 ninst, nsample, module->ninstruments); |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
417 } |
| 0 | 418 |
| 419 if (xmS.size > 0) | |
| 420 { | |
| 421 // Allocate sample instrument | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
422 JSSDEBUG("Allocating sample #%d/%d [%d]\n", |
| 0 | 423 ninst, nsample, module->ninstruments); |
| 424 | |
| 425 xmConvTable[nsample] = module->ninstruments; | |
| 426 pInst = module->instruments[module->ninstruments] = jssAllocateInstrument(); | |
| 427 if (pInst == NULL) | |
| 428 { | |
| 429 JSSERROR(DMERR_MALLOC, DMERR_MALLOC, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
430 "Could not allocate sample #%d/%d [%d]\n", |
| 0 | 431 ninst, nsample, module->ninstruments); |
| 432 } | |
| 433 module->ninstruments++; | |
| 434 } else | |
| 435 pInst = NULL; | |
| 436 | |
| 437 // Check and convert sample information | |
| 438 if (pInst != NULL) | |
| 439 { | |
| 440 // Copy values | |
| 441 if (xmS.volume > XM_MaxSampleVolume) | |
| 442 { | |
| 443 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
444 "Samp #%d/%d: volume > MAX\n", ninst, nsample); |
| 0 | 445 xmS.volume = XM_MaxSampleVolume; |
| 446 } | |
| 447 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
448 pInst->volume = xmS.volume; |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
449 pInst->ERelNote = xmS.relNote; |
| 0 | 450 pInst->EFineTune = xmS.fineTune; |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
451 pInst->EPanning = xmS.panning; |
| 0 | 452 #ifndef JSS_LIGHT |
| 453 pInst->desc = jssASCIItoStr(xmS.sampleName, 0, sizeof(xmS.sampleName)); | |
| 454 #endif | |
| 455 | |
| 456 // Convert flags | |
| 457 switch (xmS.type & 0x03) | |
| 458 { | |
| 459 case 0: pInst->flags = 0; break; | |
| 460 case 1: pInst->flags = jsfLooped; break; | |
| 461 case 2: pInst->flags = jsfLooped | jsfBiDi; break; | |
| 462 default: | |
| 463 pInst->flags = 0; | |
| 464 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
465 "Samp #%d/%d: Invalid sample type 0x%x\n", |
| 0 | 466 ninst, nsample, xmS.type); |
| 467 break; | |
| 468 } | |
| 469 | |
| 470 if (xmS.type & 0x10) | |
| 471 { | |
| 472 // 16-bit sample | |
| 473 JSFSET(pInst->flags, jsf16bit); | |
| 474 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
475 pInst->size = xmS.size / sizeof(Uint16); |
| 0 | 476 pInst->loopS = xmS.loopS / sizeof(Uint16); |
| 477 pInst->loopE = ((xmS.loopS + xmS.loopL) / sizeof(Uint16)); | |
| 478 } | |
| 479 else | |
| 480 { | |
| 481 // 8-bit sample | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
482 pInst->size = xmS.size; |
| 0 | 483 pInst->loopS = xmS.loopS; |
| 484 pInst->loopE = (xmS.loopS + xmS.loopL); | |
| 485 } | |
| 486 | |
| 487 if (xmS.loopL == 0) | |
| 488 { | |
| 489 // Always unset loop, if loop length is zero | |
| 490 JSFUNSET(pInst->flags, jsfLooped); | |
| 491 } | |
| 492 | |
| 493 if (pInst->flags & jsfLooped) | |
| 494 { | |
| 495 if (pInst->loopS >= pInst->size) | |
| 496 { | |
| 497 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
498 "Samp #%d/%d: loopS >= size (%d >= %d)\n", |
| 0 | 499 ninst, nsample, pInst->loopS, pInst->size); |
| 500 JSFUNSET(pInst->flags, jsfLooped); | |
| 501 } | |
| 502 | |
| 503 if (pInst->loopE > pInst->size) | |
| 504 { | |
| 505 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
506 "Samp #%d/%d: loopE > size (%d > %d)\n", |
| 0 | 507 ninst, nsample, pInst->loopE, pInst->size); |
| 508 JSFUNSET(pInst->flags, jsfLooped); | |
| 509 } | |
| 510 } | |
| 511 | |
| 512 | |
| 513 // Allocate memory for sample data | |
| 514 if (pInst->flags & jsf16bit) | |
| 515 pInst->data = dmCalloc(pInst->size, sizeof(Uint16)); | |
| 516 else | |
| 517 pInst->data = dmCalloc(pInst->size, sizeof(Uint8)); | |
| 518 | |
| 519 if (pInst->data == NULL) | |
| 520 JSSERROR(DMERR_MALLOC, DMERR_MALLOC, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
521 "Could not allocate sample data #%d/%d.\n", ninst, nsample); |
| 0 | 522 } |
| 523 } | |
| 524 | |
| 525 // Read sample data | |
| 526 for (nsample = 0; nsample < xmI1.nsamples; nsample++) | |
| 527 if (xmConvTable[nsample] != jsetNotSet) | |
| 528 { | |
| 529 pInst = module->instruments[xmConvTable[nsample]]; | |
| 530 if (pInst) | |
| 531 { | |
| 532 JSSDEBUG("desc....: '%s'\n" | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
533 "size....: %d\n" |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
534 "loopS...: %d\n" |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
535 "loopE...: %d\n" |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
536 "volume..: %d\n" |
| 0 | 537 "flags...: %x\n", |
| 538 pInst->desc, | |
| 539 pInst->size, pInst->loopS, pInst->loopE, | |
| 540 pInst->volume, pInst->flags); | |
| 541 | |
| 542 if (pInst->flags & jsf16bit) | |
| 543 { | |
| 544 // Read sampledata | |
| 545 if (dmfread(pInst->data, sizeof(Uint16), pInst->size, inFile) != (size_t) pInst->size) | |
| 546 JSSERROR(DMERR_FREAD, DMERR_FREAD, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
547 "Error reading sampledata for instrument #%d/%d, %d words.\n", |
| 0 | 548 ninst, nsample, pInst->size); |
| 549 | |
| 550 // Convert data | |
| 551 jssDecodeSample16((Uint16 *) pInst->data, pInst->size, | |
| 552 #if (SDL_BYTEORDER == SDL_BIG_ENDIAN) | |
| 553 (jsampDelta | jsampSwapEndianess) | |
| 554 #else | |
| 555 (jsampDelta) | |
| 556 #endif | |
| 557 ); | |
| 558 } | |
| 559 else | |
| 560 { | |
| 561 // Read sampledata | |
| 562 if (dmfread(pInst->data, sizeof(Uint8), pInst->size, inFile) != (size_t) pInst->size) | |
| 563 JSSERROR(DMERR_FREAD, DMERR_FREAD, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
564 "Error reading sampledata for instrument #%d/%d, %d bytes.\n", |
| 0 | 565 ninst, nsample, pInst->size); |
| 566 | |
| 567 // Convert data | |
| 568 jssDecodeSample8((Uint8 *) pInst->data, pInst->size, | |
| 569 (jsampDelta | jsampFlipSign)); | |
| 570 } | |
| 571 } | |
| 572 } | |
| 573 | |
| 574 // Apply new values to sNumForNotes values | |
| 575 for (i = 0; i < XM_MaxNotes; i++) | |
| 576 { | |
| 577 tmp = xmI2.sNumForNotes[i]; | |
| 578 if (tmp >= 0 && tmp < xmI1.nsamples) | |
| 579 pEInst->sNumForNotes[i] = xmConvTable[tmp]; | |
| 580 else | |
| 581 { | |
| 582 pEInst->sNumForNotes[i] = jsetNotSet; | |
| 583 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
| 584 "Ext.instrument #%d sNumForNotes[%d] out of range (%d).\n", | |
| 585 ninst, i, tmp); | |
| 586 } | |
| 587 } | |
| 588 } | |
| 589 else | |
| 590 { | |
| 591 // We may STILL need to skip extra data after 1st instr. header | |
| 592 remainder = xmI1.headSize - (dmftell(inFile) - pos); | |
| 593 if (remainder > 0) | |
| 594 { | |
| 98 | 595 JSSDEBUG("xmI1#2 Skipping: %li\n", remainder); |
| 0 | 596 dmfseek(inFile, remainder, SEEK_CUR); |
| 597 } | |
| 598 } | |
| 599 | |
| 600 return 0; | |
| 601 } | |
| 602 | |
| 603 | |
| 604 /* Load XM-format module from given file-stream | |
| 605 */ | |
| 796 | 606 int jssLoadXM(DMResource *inFile, JSSModule **ppModule, BOOL probe) |
| 0 | 607 { |
| 608 JSSModule *module; | |
| 609 XMHeader xmH; | |
| 610 int result, index, tmp; | |
| 611 | |
| 612 assert(ppModule != NULL); | |
| 613 assert(inFile != NULL); | |
| 614 *ppModule = NULL; | |
| 615 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
616 // Try to get the XM-header |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
617 if (!dmf_read_str(inFile, &xmH.idMagic, sizeof(xmH.idMagic)) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
618 !dmf_read_str(inFile, &xmH.songName, sizeof(xmH.songName)) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
619 !dmf_read_byte(inFile, &xmH.unUsed1A) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
620 !dmf_read_str(inFile, &xmH.trackerName, sizeof(xmH.trackerName)) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
621 !dmf_read_le16(inFile, &xmH.version) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
622 !dmf_read_le32(inFile, &xmH.headSize) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
623 !dmf_read_le16(inFile, &xmH.norders) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
624 !dmf_read_le16(inFile, &xmH.defRestartPos) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
625 !dmf_read_le16(inFile, &xmH.nchannels) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
626 !dmf_read_le16(inFile, &xmH.npatterns) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
627 !dmf_read_le16(inFile, &xmH.ninstruments) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
628 !dmf_read_le16(inFile, &xmH.flags) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
629 !dmf_read_le16(inFile, &xmH.defSpeed) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
630 !dmf_read_le16(inFile, &xmH.defTempo)) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
631 return DMERR_FREAD; |
| 0 | 632 |
| 633 | |
| 634 // Check the fields, none of these are considered fatal | |
| 635 if (strncmp(xmH.idMagic, "Extended Module: ", 17) != 0) | |
| 636 { | |
| 796 | 637 if (probe) |
| 638 return DMERR_NOT_SUPPORTED; | |
| 639 else | |
| 640 JSSERROR(DMERR_NOT_SUPPORTED, DMERR_NOT_SUPPORTED, | |
| 641 "Not a FT2 Extended Module (XM), header signature mismatch!\n"); | |
| 0 | 642 } |
| 643 | |
| 644 if (xmH.version != 0x0104) | |
| 645 { | |
| 646 JSSWARNING(DMERR_NOT_SUPPORTED, DMERR_NOT_SUPPORTED, | |
| 647 "Unsupported version of XM format 0x%04x instead of expected 0x0104.\n", | |
| 648 xmH.version); | |
| 649 } | |
| 650 | |
| 651 if (xmH.unUsed1A != 0x1a) | |
| 652 { | |
| 653 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
| 654 "Possibly modified or corrupted XM [%x]\n", xmH.unUsed1A); | |
| 655 } | |
| 656 | |
| 657 if (xmH.norders > XM_MaxOrders) | |
| 658 { | |
| 659 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
660 "Number of orders %d > %d, possibly broken module.\n", |
| 0 | 661 xmH.norders, XM_MaxOrders); |
| 662 xmH.norders = XM_MaxOrders; | |
| 663 } | |
| 664 | |
| 665 if (xmH.norders == 0) | |
| 666 { | |
| 667 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
| 668 "Number of orders was zero.\n"); | |
| 669 } | |
| 670 | |
| 671 if (xmH.npatterns > XM_MaxPatterns) | |
| 672 { | |
| 673 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
674 "Number of patterns %d > %d, possibly broken module.\n", |
| 0 | 675 xmH.npatterns, XM_MaxPatterns); |
| 676 xmH.npatterns = XM_MaxPatterns; | |
| 677 } | |
| 678 | |
| 679 if (xmH.npatterns == 0) | |
| 680 { | |
| 681 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
| 682 "Number of patterns was zero.\n"); | |
| 683 } | |
| 684 | |
| 685 if (xmH.nchannels <= 0 || xmH.nchannels > XM_MaxChannels) | |
| 686 { | |
| 687 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
688 "Number of channels was invalid, %d (should be 1 - %d).\n", |
| 0 | 689 xmH.nchannels, XM_MaxChannels); |
| 690 } | |
| 691 | |
| 692 if (xmH.ninstruments <= 0 || xmH.ninstruments > XM_MaxInstruments) | |
| 693 { | |
| 694 JSSWARNING(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
695 "Number of instruments was invalid, %d (should be 1 - %d).\n", |
| 0 | 696 xmH.ninstruments, XM_MaxInstruments); |
| 697 } | |
| 698 | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
699 // Read orders list |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
700 if (!dmf_read_str(inFile, &xmH.orderList, sizeof(xmH.orderList))) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
701 { |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
702 JSSERROR(DMERR_FREAD, DMERR_FREAD, |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
703 "Error reading pattern order list.\n"); |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
704 } |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
705 |
| 0 | 706 /* Okay, allocate a module structure |
| 707 */ | |
| 708 module = jssAllocateModule(); | |
| 709 if (module == NULL) | |
| 710 { | |
| 711 JSSERROR(DMERR_MALLOC, DMERR_MALLOC, | |
| 712 "Could not allocate memory for module structure.\n"); | |
| 713 } | |
| 714 *ppModule = module; | |
| 715 | |
| 716 | |
| 717 // Convert and check the header data | |
| 718 module->moduleType = jmdtXM; | |
| 719 module->intVersion = xmH.version; | |
| 720 #ifndef JSS_LIGHT | |
| 721 module->moduleName = jssASCIItoStr(xmH.songName, 0, sizeof(xmH.songName)); | |
| 722 module->trackerName = jssASCIItoStr(xmH.trackerName, 0, sizeof(xmH.trackerName)); | |
| 723 #endif | |
| 724 module->defSpeed = xmH.defSpeed; | |
| 725 module->defTempo = xmH.defTempo; | |
| 726 module->nextInstruments = xmH.ninstruments; | |
| 727 module->ninstruments = 0; | |
| 728 module->npatterns = xmH.npatterns; | |
| 729 module->norders = xmH.norders; | |
| 730 module->nchannels = xmH.nchannels; | |
| 731 module->defFlags = jmdfStereo | jmdfFT2Replay; | |
| 732 module->defRestartPos = xmH.defRestartPos; | |
| 733 | |
| 734 if ((xmH.flags & 1) == 0) | |
| 735 module->defFlags |= jmdfAmigaPeriods; | |
| 736 | |
| 737 // Setup the default pannings | |
| 738 for (index = 0; index < jsetNChannels; index++) | |
| 739 module->defPanning[index] = jchPanMiddle; | |
| 740 | |
| 741 /* Read patterns | |
| 742 */ | |
| 743 for (index = 0; index < module->npatterns; index++) | |
| 744 { | |
| 88 | 745 off_t pos, remainder; |
| 0 | 746 XMPattern xmP; |
| 747 | |
| 748 // Get the pattern header | |
| 98 | 749 pos = dmftell(inFile); |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
750 |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
751 if (!dmf_read_le32(inFile, &xmP.headSize) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
752 !dmf_read_byte(inFile, &xmP.packing) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
753 !dmf_read_le16(inFile, &xmP.nrows) || |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
754 !dmf_read_le16(inFile, &xmP.size)) |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
755 JSSERROR(DMERR_FREAD, DMERR_FREAD, |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
756 "Could not read pattern header data #%d.\n", |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
757 index); |
|
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
758 |
| 0 | 759 |
| 760 // Check the header | |
| 761 if (xmP.packing != 0) | |
| 762 JSSERROR(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
763 "Pattern #%d packing type unsupported (%d)\n", |
| 0 | 764 index, xmP.packing); |
| 765 | |
| 766 if (xmP.nrows == 0) | |
| 767 JSSERROR(DMERR_INVALID_DATA, DMERR_INVALID_DATA, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
768 "Pattern #%d has %d rows, invalid data.\n", |
| 0 | 769 index, xmP.nrows); |
| 770 | |
| 771 if (xmP.size > 0) | |
| 772 { | |
| 773 // Allocate and unpack pattern | |
| 774 module->patterns[index] = jssAllocatePattern(xmP.nrows, module->nchannels); | |
| 775 if (module->patterns[index] == NULL) | |
| 776 JSSERROR(DMERR_MALLOC, DMERR_MALLOC, | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
777 "Could not allocate memory for pattern #%d\n", index); |
| 0 | 778 |
| 779 result = jssXMUnpackPattern(inFile, xmP.size, module->patterns[index]); | |
| 780 if (result != 0) | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
781 JSSERROR(result, result, "Error in unpacking pattern #%d data\n", index); |
| 0 | 782 } |
| 783 | |
| 784 // Skip extra data (if the file is damaged) | |
| 88 | 785 remainder = xmP.headSize - (dmftell(inFile) - pos); |
| 786 if (remainder > 0) | |
| 0 | 787 { |
| 98 | 788 JSSDEBUG("xmP Skipping: %li\n", remainder); |
| 88 | 789 dmfseek(inFile, remainder, SEEK_CUR); |
| 0 | 790 } |
| 791 } | |
| 792 | |
| 793 // Allocate the empty pattern | |
| 794 module->patterns[jsetMaxPatterns] = jssAllocatePattern(64, module->nchannels); | |
| 795 | |
| 796 /* Convert song orders list by replacing nonexisting patterns | |
| 797 * with pattern number jsetMaxPatterns. | |
| 798 */ | |
| 799 for (index = 0; index < module->norders; index++) | |
| 800 { | |
| 801 tmp = xmH.orderList[index]; | |
| 802 if (tmp >= module->npatterns || module->patterns[tmp] == NULL) | |
| 803 tmp = jsetMaxPatterns; | |
| 804 | |
| 805 module->orderList[index] = tmp; | |
| 806 } | |
| 807 | |
| 808 /* Read instruments | |
| 809 */ | |
| 810 for (index = 0; index < module->nextInstruments; index++) | |
| 811 { | |
| 812 result = jssXMLoadExtInstrument(inFile, index, module); | |
| 813 if (result != 0) | |
|
778
a4cf7716ba58
Clean up the XM module loader a bit, add more error checking.
Matti Hamalainen <ccr@tnsp.org>
parents:
658
diff
changeset
|
814 JSSERROR(result, result, "Errors while reading instrument #%d\n", index); |
| 0 | 815 } |
| 816 | |
| 817 return DMERR_OK; | |
| 818 } |