/* 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. * */ #include "audio/mods/module.h" #include "common/util.h" #include "common/endian.h" #include "common/stream.h" #include "common/textconsole.h" namespace Modules { const int16 Module::periods[16][60] = { {1712, 1616, 1524, 1440, 1356, 1280, 1208, 1140, 1076, 1016, 960 , 906, 856 , 808 , 762 , 720 , 678 , 640 , 604 , 570 , 538 , 508 , 480 , 453, 428 , 404 , 381 , 360 , 339 , 320 , 302 , 285 , 269 , 254 , 240 , 226, 214 , 202 , 190 , 180 , 170 , 160 , 151 , 143 , 135 , 127 , 120 , 113, 107 , 101 , 95 , 90 , 85 , 80 , 75 , 71 , 67 , 63 , 60 , 56 }, {1700, 1604, 1514, 1430, 1348, 1274, 1202, 1134, 1070, 1010, 954 , 900, 850 , 802 , 757 , 715 , 674 , 637 , 601 , 567 , 535 , 505 , 477 , 450, 425 , 401 , 379 , 357 , 337 , 318 , 300 , 284 , 268 , 253 , 239 , 225, 213 , 201 , 189 , 179 , 169 , 159 , 150 , 142 , 134 , 126 , 119 , 113, 106 , 100 , 94 , 89 , 84 , 79 , 75 , 71 , 67 , 63 , 59 , 56 }, {1688, 1592, 1504, 1418, 1340, 1264, 1194, 1126, 1064, 1004, 948 , 894, 844 , 796 , 752 , 709 , 670 , 632 , 597 , 563 , 532 , 502 , 474 , 447, 422 , 398 , 376 , 355 , 335 , 316 , 298 , 282 , 266 , 251 , 237 , 224, 211 , 199 , 188 , 177 , 167 , 158 , 149 , 141 , 133 , 125 , 118 , 112, 105 , 99 , 94 , 88 , 83 , 79 , 74 , 70 , 66 , 62 , 59 , 56 }, {1676, 1582, 1492, 1408, 1330, 1256, 1184, 1118, 1056, 996 , 940 , 888, 838 , 791 , 746 , 704 , 665 , 628 , 592 , 559 , 528 , 498 , 470 , 444, 419 , 395 , 373 , 352 , 332 , 314 , 296 , 280 , 264 , 249 , 235 , 222, 209 , 198 , 187 , 176 , 166 , 157 , 148 , 140 , 132 , 125 , 118 , 111, 104 , 99 , 93 , 88 , 83 , 78 , 74 , 70 , 66 , 62 , 59 , 55 }, {1664, 1570, 1482, 1398, 1320, 1246, 1176, 1110, 1048, 990 , 934 , 882, 832 , 785 , 741 , 699 , 660 , 623 , 588 , 555 , 524 , 495 , 467 , 441, 416 , 392 , 370 , 350 , 330 , 312 , 294 , 278 , 262 , 247 , 233 , 220, 208 , 196 , 185 , 175 , 165 , 156 , 147 , 139 , 131 , 124 , 117 , 110, 104 , 98 , 92 , 87 , 82 , 78 , 73 , 69 , 65 , 62 , 58 , 55 }, {1652, 1558, 1472, 1388, 1310, 1238, 1168, 1102, 1040, 982 , 926 , 874, 826 , 779 , 736 , 694 , 655 , 619 , 584 , 551 , 520 , 491 , 463 , 437, 413 , 390 , 368 , 347 , 328 , 309 , 292 , 276 , 260 , 245 , 232 , 219, 206 , 195 , 184 , 174 , 164 , 155 , 146 , 138 , 130 , 123 , 116 , 109, 103 , 97 , 92 , 87 , 82 , 77 , 73 , 69 , 65 , 61 , 58 , 54 }, {1640, 1548, 1460, 1378, 1302, 1228, 1160, 1094, 1032, 974 , 920 , 868, 820 , 774 , 730 , 689 , 651 , 614 , 580 , 547 , 516 , 487 , 460 , 434, 410 , 387 , 365 , 345 , 325 , 307 , 290 , 274 , 258 , 244 , 230 , 217, 205 , 193 , 183 , 172 , 163 , 154 , 145 , 137 , 129 , 122 , 115 , 109, 102 , 96 , 91 , 86 , 81 , 77 , 72 , 68 , 64 , 61 , 57 , 54 }, {1628, 1536, 1450, 1368, 1292, 1220, 1150, 1086, 1026, 968 , 914 , 862, 814 , 768 , 725 , 684 , 646 , 610 , 575 , 543 , 513 , 484 , 457 , 431, 407 , 384 , 363 , 342 , 323 , 305 , 288 , 272 , 256 , 242 , 228 , 216, 204 , 192 , 181 , 171 , 161 , 152 , 144 , 136 , 128 , 121 , 114 , 108, 102 , 96 , 90 , 85 , 80 , 76 , 72 , 68 , 64 , 60 , 57 , 54 }, {1814, 1712, 1616, 1524, 1440, 1356, 1280, 1208, 1140, 1076, 1016, 960, 907 , 856 , 808 , 762 , 720 , 678 , 640 , 604 , 570 , 538 , 508 , 480, 453 , 428 , 404 , 381 , 360 , 339 , 320 , 302 , 285 , 269 , 254 , 240, 226 , 214 , 202 , 190 , 180 , 170 , 160 , 151 , 143 , 135 , 127 , 120, 113 , 107 , 101 , 95 , 90 , 85 , 80 , 75 , 71 , 67 , 63 , 60 }, {1800, 1700, 1604, 1514, 1430, 1350, 1272, 1202, 1134, 1070, 1010, 954, 900 , 850 , 802 , 757 , 715 , 675 , 636 , 601 , 567 , 535 , 505 , 477, 450 , 425 , 401 , 379 , 357 , 337 , 318 , 300 , 284 , 268 , 253 , 238, 225 , 212 , 200 , 189 , 179 , 169 , 159 , 150 , 142 , 134 , 126 , 119, 112 , 106 , 100 , 94 , 89 , 84 , 79 , 75 , 71 , 67 , 63 , 59 }, {1788, 1688, 1592, 1504, 1418, 1340, 1264, 1194, 1126, 1064, 1004, 948, 894 , 844 , 796 , 752 , 709 , 670 , 632 , 597 , 563 , 532 , 502 , 474, 447 , 422 , 398 , 376 , 355 , 335 , 316 , 298 , 282 , 266 , 251 , 237, 223 , 211 , 199 , 188 , 177 , 167 , 158 , 149 , 141 , 133 , 125 , 118, 111 , 105 , 99 , 94 , 88 , 83 , 79 , 74 , 70 , 66 , 62 , 59 }, {1774, 1676, 1582, 1492, 1408, 1330, 1256, 1184, 1118, 1056, 996 , 940, 887 , 838 , 791 , 746 , 704 , 665 , 628 , 592 , 559 , 528 , 498 , 470, 444 , 419 , 395 , 373 , 352 , 332 , 314 , 296 , 280 , 264 , 249 , 235, 222 , 209 , 198 , 187 , 176 , 166 , 157 , 148 , 140 , 132 , 125 , 118, 111 , 104 , 99 , 93 , 88 , 83 , 78 , 74 , 70 , 66 , 62 , 59 }, {1762, 1664, 1570, 1482, 1398, 1320, 1246, 1176, 1110, 1048, 988 , 934, 881 , 832 , 785 , 741 , 699 , 660 , 623 , 588 , 555 , 524 , 494 , 467, 441 , 416 , 392 , 370 , 350 , 330 , 312 , 294 , 278 , 262 , 247 , 233, 220 , 208 , 196 , 185 , 175 , 165 , 156 , 147 , 139 , 131 , 123 , 117, 110 , 104 , 98 , 92 , 87 , 82 , 78 , 73 , 69 , 65 , 61 , 58 }, {1750, 1652, 1558, 1472, 1388, 1310, 1238, 1168, 1102, 1040, 982 , 926, 875 , 826 , 779 , 736 , 694 , 655 , 619 , 584 , 551 , 520 , 491 , 463, 437 , 413 , 390 , 368 , 347 , 328 , 309 , 292 , 276 , 260 , 245 , 232, 219 , 206 , 195 , 184 , 174 , 164 , 155 , 146 , 138 , 130 , 123 , 116, 109 , 103 , 97 , 92 , 87 , 82 , 77 , 73 , 69 , 65 , 61 , 58 }, {1736, 1640, 1548, 1460, 1378, 1302, 1228, 1160, 1094, 1032, 974 , 920, 868 , 820 , 774 , 730 , 689 , 651 , 614 , 580 , 547 , 516 , 487 , 460, 434 , 410 , 387 , 365 , 345 , 325 , 307 , 290 , 274 , 258 , 244 , 230, 217 , 205 , 193 , 183 , 172 , 163 , 154 , 145 , 137 , 129 , 122 , 115, 108 , 102 , 96 , 91 , 86 , 81 , 77 , 72 , 68 , 64 , 61 , 57 }, {1724, 1628, 1536, 1450, 1368, 1292, 1220, 1150, 1086, 1026, 968 , 914, 862 , 814 , 768 , 725 , 684 , 646 , 610 , 575 , 543 , 513 , 484 , 457, 431 , 407 , 384 , 363 , 342 , 323 , 305 , 288 , 272 , 256 , 242 , 228, 216 , 203 , 192 , 181 , 171 , 161 , 152 , 144 , 136 , 128 , 121 , 114, 108 , 101 , 96 , 90 , 85 , 80 , 76 , 72 , 68 , 64 , 60 , 57 }}; const uint32 Module::signatures[] = { MKTAG('M','.','K','.'), MKTAG('M','!','K','!'), MKTAG('F','L','T','4') }; bool Module::load(Common::SeekableReadStream &st, int offs) { if (offs) { // Load the module with the common sample data load(st, 0); } st.seek(offs); st.read(songname, 20); songname[20] = '\0'; for (int i = 0; i < NUM_SAMPLES; ++i) { st.read(sample[i].name, 22); sample[i].name[22] = '\0'; sample[i].len = 2 * st.readUint16BE(); sample[i].finetune = st.readByte(); assert(sample[i].finetune < 0x10); sample[i].vol = st.readByte(); sample[i].repeat = 2 * st.readUint16BE(); sample[i].replen = 2 * st.readUint16BE(); } songlen = st.readByte(); undef = st.readByte(); st.read(songpos, 128); sig = st.readUint32BE(); bool foundSig = false; for (int i = 0; i < ARRAYSIZE(signatures); i++) { if (sig == signatures[i]) { foundSig = true; break; } } if (!foundSig) { warning("No known signature found in protracker module"); return false; } int maxpattern = 0; for (int i = 0; i < 128; ++i) if (maxpattern < songpos[i]) maxpattern = songpos[i]; pattern = new pattern_t[maxpattern + 1]; for (int i = 0; i <= maxpattern; ++i) { for (int j = 0; j < 64; ++j) { for (int k = 0; k < 4; ++k) { uint32 note = st.readUint32BE(); pattern[i][j][k].sample = (note & 0xf0000000) >> 24 | (note & 0x0000f000) >> 12; pattern[i][j][k].period = (note >> 16) & 0xfff; pattern[i][j][k].effect = note & 0xfff; pattern[i][j][k].note = periodToNote((note >> 16) & 0xfff); } } } for (int i = 0; i < NUM_SAMPLES; ++i) { if (offs) { // Restore information for modules that use common sample data for (int j = 0; j < NUM_SAMPLES; ++j) { if (!scumm_stricmp((const char *)commonSamples[j].name, (const char *)sample[i].name)) { sample[i].len = commonSamples[j].len; st.seek(commonSamples[j].offs); break; } } } else { // Store information for modules that use common sample data memcpy(commonSamples[i].name, sample[i].name, 22); commonSamples[i].len = sample[i].len; commonSamples[i].offs = st.pos(); } if (!sample[i].len) { sample[i].data = 0; } else { sample[i].data = new int8[sample[i].len]; st.read((byte *)sample[i].data, sample[i].len); } } return true; } Module::Module() { pattern = 0; for (int i = 0; i < NUM_SAMPLES; ++i) { sample[i].data = 0; } } Module::~Module() { delete[] pattern; for (int i = 0; i < NUM_SAMPLES; ++i) { delete[] sample[i].data; } } byte Module::periodToNote(int16 period, byte finetune) { int16 diff1; int16 diff2; diff1 = ABS(periods[finetune][0] - period); if (diff1 == 0) return 0; for (int i = 1; i < 60; i++) { diff2 = ABS(periods[finetune][i] - period); if (diff2 == 0) return i; else if (diff2 > diff1) return i-1; diff1 = diff2; } return 59; } int16 Module::noteToPeriod(byte note, byte finetune) { if (finetune > 15) finetune = 15; if (note > 59) note = 59; return periods[finetune][note]; } } // End of namespace Modules