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* code refactoring: hid the CRC class (src/gig.h), no need to expose it to the API, since it's only used internally
1 | schoenebeck | 2 | /*************************************************************************** |
2 | * * | ||
3 | schoenebeck | 933 | * libgig - C++ cross-platform Gigasampler format file access library * |
4 | schoenebeck | 2 | * * |
5 | schoenebeck | 1050 | * Copyright (C) 2003-2007 by Christian Schoenebeck * |
6 | schoenebeck | 384 | * <cuse@users.sourceforge.net> * |
7 | schoenebeck | 2 | * * |
8 | * This library is free software; you can redistribute it and/or modify * | ||
9 | * it under the terms of the GNU General Public License as published by * | ||
10 | * the Free Software Foundation; either version 2 of the License, or * | ||
11 | * (at your option) any later version. * | ||
12 | * * | ||
13 | * This library is distributed in the hope that it will be useful, * | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * | ||
16 | * GNU General Public License for more details. * | ||
17 | * * | ||
18 | * You should have received a copy of the GNU General Public License * | ||
19 | * along with this library; if not, write to the Free Software * | ||
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * | ||
21 | * MA 02111-1307 USA * | ||
22 | ***************************************************************************/ | ||
23 | |||
24 | #include "gig.h" | ||
25 | |||
26 | schoenebeck | 809 | #include "helper.h" |
27 | |||
28 | #include <math.h> | ||
29 | schoenebeck | 384 | #include <iostream> |
30 | |||
31 | schoenebeck | 809 | /// Initial size of the sample buffer which is used for decompression of |
32 | /// compressed sample wave streams - this value should always be bigger than | ||
33 | /// the biggest sample piece expected to be read by the sampler engine, | ||
34 | /// otherwise the buffer size will be raised at runtime and thus the buffer | ||
35 | /// reallocated which is time consuming and unefficient. | ||
36 | #define INITIAL_SAMPLE_BUFFER_SIZE 512000 // 512 kB | ||
37 | |||
38 | /** (so far) every exponential paramater in the gig format has a basis of 1.000000008813822 */ | ||
39 | #define GIG_EXP_DECODE(x) (pow(1.000000008813822, x)) | ||
40 | #define GIG_EXP_ENCODE(x) (log(x) / log(1.000000008813822)) | ||
41 | #define GIG_PITCH_TRACK_EXTRACT(x) (!(x & 0x01)) | ||
42 | #define GIG_PITCH_TRACK_ENCODE(x) ((x) ? 0x00 : 0x01) | ||
43 | #define GIG_VCF_RESONANCE_CTRL_EXTRACT(x) ((x >> 4) & 0x03) | ||
44 | #define GIG_VCF_RESONANCE_CTRL_ENCODE(x) ((x & 0x03) << 4) | ||
45 | #define GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(x) ((x >> 1) & 0x03) | ||
46 | #define GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(x) ((x >> 3) & 0x03) | ||
47 | #define GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(x) ((x >> 5) & 0x03) | ||
48 | #define GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(x) ((x & 0x03) << 1) | ||
49 | #define GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(x) ((x & 0x03) << 3) | ||
50 | #define GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(x) ((x & 0x03) << 5) | ||
51 | |||
52 | schoenebeck | 515 | namespace gig { |
53 | schoenebeck | 2 | |
54 | schoenebeck | 515 | // *************** progress_t *************** |
55 | // * | ||
56 | |||
57 | progress_t::progress_t() { | ||
58 | callback = NULL; | ||
59 | schoenebeck | 516 | custom = NULL; |
60 | schoenebeck | 515 | __range_min = 0.0f; |
61 | __range_max = 1.0f; | ||
62 | } | ||
63 | |||
64 | // private helper function to convert progress of a subprocess into the global progress | ||
65 | static void __notify_progress(progress_t* pProgress, float subprogress) { | ||
66 | if (pProgress && pProgress->callback) { | ||
67 | const float totalrange = pProgress->__range_max - pProgress->__range_min; | ||
68 | const float totalprogress = pProgress->__range_min + subprogress * totalrange; | ||
69 | schoenebeck | 516 | pProgress->factor = totalprogress; |
70 | pProgress->callback(pProgress); // now actually notify about the progress | ||
71 | schoenebeck | 515 | } |
72 | } | ||
73 | |||
74 | // private helper function to divide a progress into subprogresses | ||
75 | static void __divide_progress(progress_t* pParentProgress, progress_t* pSubProgress, float totalTasks, float currentTask) { | ||
76 | if (pParentProgress && pParentProgress->callback) { | ||
77 | const float totalrange = pParentProgress->__range_max - pParentProgress->__range_min; | ||
78 | pSubProgress->callback = pParentProgress->callback; | ||
79 | schoenebeck | 516 | pSubProgress->custom = pParentProgress->custom; |
80 | schoenebeck | 515 | pSubProgress->__range_min = pParentProgress->__range_min + totalrange * currentTask / totalTasks; |
81 | pSubProgress->__range_max = pSubProgress->__range_min + totalrange / totalTasks; | ||
82 | } | ||
83 | } | ||
84 | |||
85 | |||
86 | schoenebeck | 809 | // *************** Internal functions for sample decompression *************** |
87 | persson | 365 | // * |
88 | |||
89 | schoenebeck | 515 | namespace { |
90 | |||
91 | persson | 365 | inline int get12lo(const unsigned char* pSrc) |
92 | { | ||
93 | const int x = pSrc[0] | (pSrc[1] & 0x0f) << 8; | ||
94 | return x & 0x800 ? x - 0x1000 : x; | ||
95 | } | ||
96 | |||
97 | inline int get12hi(const unsigned char* pSrc) | ||
98 | { | ||
99 | const int x = pSrc[1] >> 4 | pSrc[2] << 4; | ||
100 | return x & 0x800 ? x - 0x1000 : x; | ||
101 | } | ||
102 | |||
103 | inline int16_t get16(const unsigned char* pSrc) | ||
104 | { | ||
105 | return int16_t(pSrc[0] | pSrc[1] << 8); | ||
106 | } | ||
107 | |||
108 | inline int get24(const unsigned char* pSrc) | ||
109 | { | ||
110 | const int x = pSrc[0] | pSrc[1] << 8 | pSrc[2] << 16; | ||
111 | return x & 0x800000 ? x - 0x1000000 : x; | ||
112 | } | ||
113 | |||
114 | persson | 902 | inline void store24(unsigned char* pDst, int x) |
115 | { | ||
116 | pDst[0] = x; | ||
117 | pDst[1] = x >> 8; | ||
118 | pDst[2] = x >> 16; | ||
119 | } | ||
120 | |||
121 | persson | 365 | void Decompress16(int compressionmode, const unsigned char* params, |
122 | persson | 372 | int srcStep, int dstStep, |
123 | const unsigned char* pSrc, int16_t* pDst, | ||
124 | persson | 365 | unsigned long currentframeoffset, |
125 | unsigned long copysamples) | ||
126 | { | ||
127 | switch (compressionmode) { | ||
128 | case 0: // 16 bit uncompressed | ||
129 | pSrc += currentframeoffset * srcStep; | ||
130 | while (copysamples) { | ||
131 | *pDst = get16(pSrc); | ||
132 | persson | 372 | pDst += dstStep; |
133 | persson | 365 | pSrc += srcStep; |
134 | copysamples--; | ||
135 | } | ||
136 | break; | ||
137 | |||
138 | case 1: // 16 bit compressed to 8 bit | ||
139 | int y = get16(params); | ||
140 | int dy = get16(params + 2); | ||
141 | while (currentframeoffset) { | ||
142 | dy -= int8_t(*pSrc); | ||
143 | y -= dy; | ||
144 | pSrc += srcStep; | ||
145 | currentframeoffset--; | ||
146 | } | ||
147 | while (copysamples) { | ||
148 | dy -= int8_t(*pSrc); | ||
149 | y -= dy; | ||
150 | *pDst = y; | ||
151 | persson | 372 | pDst += dstStep; |
152 | persson | 365 | pSrc += srcStep; |
153 | copysamples--; | ||
154 | } | ||
155 | break; | ||
156 | } | ||
157 | } | ||
158 | |||
159 | void Decompress24(int compressionmode, const unsigned char* params, | ||
160 | persson | 902 | int dstStep, const unsigned char* pSrc, uint8_t* pDst, |
161 | persson | 365 | unsigned long currentframeoffset, |
162 | persson | 437 | unsigned long copysamples, int truncatedBits) |
163 | persson | 365 | { |
164 | persson | 695 | int y, dy, ddy, dddy; |
165 | persson | 437 | |
166 | persson | 695 | #define GET_PARAMS(params) \ |
167 | y = get24(params); \ | ||
168 | dy = y - get24((params) + 3); \ | ||
169 | ddy = get24((params) + 6); \ | ||
170 | dddy = get24((params) + 9) | ||
171 | persson | 365 | |
172 | #define SKIP_ONE(x) \ | ||
173 | persson | 695 | dddy -= (x); \ |
174 | ddy -= dddy; \ | ||
175 | dy = -dy - ddy; \ | ||
176 | y += dy | ||
177 | persson | 365 | |
178 | #define COPY_ONE(x) \ | ||
179 | SKIP_ONE(x); \ | ||
180 | persson | 902 | store24(pDst, y << truncatedBits); \ |
181 | persson | 372 | pDst += dstStep |
182 | persson | 365 | |
183 | switch (compressionmode) { | ||
184 | case 2: // 24 bit uncompressed | ||
185 | pSrc += currentframeoffset * 3; | ||
186 | while (copysamples) { | ||
187 | persson | 902 | store24(pDst, get24(pSrc) << truncatedBits); |
188 | persson | 372 | pDst += dstStep; |
189 | persson | 365 | pSrc += 3; |
190 | copysamples--; | ||
191 | } | ||
192 | break; | ||
193 | |||
194 | case 3: // 24 bit compressed to 16 bit | ||
195 | GET_PARAMS(params); | ||
196 | while (currentframeoffset) { | ||
197 | SKIP_ONE(get16(pSrc)); | ||
198 | pSrc += 2; | ||
199 | currentframeoffset--; | ||
200 | } | ||
201 | while (copysamples) { | ||
202 | COPY_ONE(get16(pSrc)); | ||
203 | pSrc += 2; | ||
204 | copysamples--; | ||
205 | } | ||
206 | break; | ||
207 | |||
208 | case 4: // 24 bit compressed to 12 bit | ||
209 | GET_PARAMS(params); | ||
210 | while (currentframeoffset > 1) { | ||
211 | SKIP_ONE(get12lo(pSrc)); | ||
212 | SKIP_ONE(get12hi(pSrc)); | ||
213 | pSrc += 3; | ||
214 | currentframeoffset -= 2; | ||
215 | } | ||
216 | if (currentframeoffset) { | ||
217 | SKIP_ONE(get12lo(pSrc)); | ||
218 | currentframeoffset--; | ||
219 | if (copysamples) { | ||
220 | COPY_ONE(get12hi(pSrc)); | ||
221 | pSrc += 3; | ||
222 | copysamples--; | ||
223 | } | ||
224 | } | ||
225 | while (copysamples > 1) { | ||
226 | COPY_ONE(get12lo(pSrc)); | ||
227 | COPY_ONE(get12hi(pSrc)); | ||
228 | pSrc += 3; | ||
229 | copysamples -= 2; | ||
230 | } | ||
231 | if (copysamples) { | ||
232 | COPY_ONE(get12lo(pSrc)); | ||
233 | } | ||
234 | break; | ||
235 | |||
236 | case 5: // 24 bit compressed to 8 bit | ||
237 | GET_PARAMS(params); | ||
238 | while (currentframeoffset) { | ||
239 | SKIP_ONE(int8_t(*pSrc++)); | ||
240 | currentframeoffset--; | ||
241 | } | ||
242 | while (copysamples) { | ||
243 | COPY_ONE(int8_t(*pSrc++)); | ||
244 | copysamples--; | ||
245 | } | ||
246 | break; | ||
247 | } | ||
248 | } | ||
249 | |||
250 | const int bytesPerFrame[] = { 4096, 2052, 768, 524, 396, 268 }; | ||
251 | const int bytesPerFrameNoHdr[] = { 4096, 2048, 768, 512, 384, 256 }; | ||
252 | const int headerSize[] = { 0, 4, 0, 12, 12, 12 }; | ||
253 | const int bitsPerSample[] = { 16, 8, 24, 16, 12, 8 }; | ||
254 | } | ||
255 | |||
256 | |||
257 | schoenebeck | 1113 | |
258 | schoenebeck | 1381 | // *************** Internal CRC-32 (Cyclic Redundancy Check) functions *************** |
259 | // * | ||
260 | |||
261 | static uint32_t* __initCRCTable() { | ||
262 | static uint32_t res[256]; | ||
263 | |||
264 | for (int i = 0 ; i < 256 ; i++) { | ||
265 | uint32_t c = i; | ||
266 | for (int j = 0 ; j < 8 ; j++) { | ||
267 | c = (c & 1) ? 0xedb88320 ^ (c >> 1) : c >> 1; | ||
268 | } | ||
269 | res[i] = c; | ||
270 | } | ||
271 | return res; | ||
272 | } | ||
273 | |||
274 | static const uint32_t* __CRCTable = __initCRCTable(); | ||
275 | |||
276 | /** | ||
277 | * Initialize a CRC variable. | ||
278 | * | ||
279 | * @param crc - variable to be initialized | ||
280 | */ | ||
281 | inline static void __resetCRC(uint32_t& crc) { | ||
282 | crc = 0xffffffff; | ||
283 | } | ||
284 | |||
285 | /** | ||
286 | * Used to calculate checksums of the sample data in a gig file. The | ||
287 | * checksums are stored in the 3crc chunk of the gig file and | ||
288 | * automatically updated when a sample is written with Sample::Write(). | ||
289 | * | ||
290 | * One should call __resetCRC() to initialize the CRC variable to be | ||
291 | * used before calling this function the first time. | ||
292 | * | ||
293 | * After initializing the CRC variable one can call this function | ||
294 | * arbitrary times, i.e. to split the overall CRC calculation into | ||
295 | * steps. | ||
296 | * | ||
297 | * Once the whole data was processed by __calculateCRC(), one should | ||
298 | * call __encodeCRC() to get the final CRC result. | ||
299 | * | ||
300 | * @param buf - pointer to data the CRC shall be calculated of | ||
301 | * @param bufSize - size of the data to be processed | ||
302 | * @param crc - variable the CRC sum shall be stored to | ||
303 | */ | ||
304 | static void __calculateCRC(unsigned char* buf, int bufSize, uint32_t& crc) { | ||
305 | for (int i = 0 ; i < bufSize ; i++) { | ||
306 | crc = __CRCTable[(crc ^ buf[i]) & 0xff] ^ (crc >> 8); | ||
307 | } | ||
308 | } | ||
309 | |||
310 | /** | ||
311 | * Returns the final CRC result. | ||
312 | * | ||
313 | * @param crc - variable previously passed to __calculateCRC() | ||
314 | */ | ||
315 | inline static uint32_t __encodeCRC(const uint32_t& crc) { | ||
316 | return crc ^ 0xffffffff; | ||
317 | } | ||
318 | |||
319 | |||
320 | |||
321 | schoenebeck | 1113 | // *************** Other Internal functions *************** |
322 | // * | ||
323 | |||
324 | static split_type_t __resolveSplitType(dimension_t dimension) { | ||
325 | return ( | ||
326 | dimension == dimension_layer || | ||
327 | dimension == dimension_samplechannel || | ||
328 | dimension == dimension_releasetrigger || | ||
329 | dimension == dimension_keyboard || | ||
330 | dimension == dimension_roundrobin || | ||
331 | dimension == dimension_random || | ||
332 | dimension == dimension_smartmidi || | ||
333 | dimension == dimension_roundrobinkeyboard | ||
334 | ) ? split_type_bit : split_type_normal; | ||
335 | } | ||
336 | |||
337 | static int __resolveZoneSize(dimension_def_t& dimension_definition) { | ||
338 | return (dimension_definition.split_type == split_type_normal) | ||
339 | ? int(128.0 / dimension_definition.zones) : 0; | ||
340 | } | ||
341 | |||
342 | |||
343 | |||
344 | schoenebeck | 2 | // *************** Sample *************** |
345 | // * | ||
346 | |||
347 | schoenebeck | 384 | unsigned int Sample::Instances = 0; |
348 | buffer_t Sample::InternalDecompressionBuffer; | ||
349 | schoenebeck | 2 | |
350 | schoenebeck | 809 | /** @brief Constructor. |
351 | * | ||
352 | * Load an existing sample or create a new one. A 'wave' list chunk must | ||
353 | * be given to this constructor. In case the given 'wave' list chunk | ||
354 | * contains a 'fmt', 'data' (and optionally a '3gix', 'smpl') chunk, the | ||
355 | * format and sample data will be loaded from there, otherwise default | ||
356 | * values will be used and those chunks will be created when | ||
357 | * File::Save() will be called later on. | ||
358 | * | ||
359 | * @param pFile - pointer to gig::File where this sample is | ||
360 | * located (or will be located) | ||
361 | * @param waveList - pointer to 'wave' list chunk which is (or | ||
362 | * will be) associated with this sample | ||
363 | * @param WavePoolOffset - offset of this sample data from wave pool | ||
364 | * ('wvpl') list chunk | ||
365 | * @param fileNo - number of an extension file where this sample | ||
366 | * is located, 0 otherwise | ||
367 | */ | ||
368 | persson | 666 | Sample::Sample(File* pFile, RIFF::List* waveList, unsigned long WavePoolOffset, unsigned long fileNo) : DLS::Sample((DLS::File*) pFile, waveList, WavePoolOffset) { |
369 | persson | 1180 | static const DLS::Info::FixedStringLength fixedStringLengths[] = { |
370 | { CHUNK_ID_INAM, 64 }, | ||
371 | { 0, 0 } | ||
372 | }; | ||
373 | pInfo->FixedStringLengths = fixedStringLengths; | ||
374 | schoenebeck | 2 | Instances++; |
375 | persson | 666 | FileNo = fileNo; |
376 | schoenebeck | 2 | |
377 | schoenebeck | 1381 | __resetCRC(crc); |
378 | |||
379 | schoenebeck | 809 | pCk3gix = waveList->GetSubChunk(CHUNK_ID_3GIX); |
380 | if (pCk3gix) { | ||
381 | schoenebeck | 929 | uint16_t iSampleGroup = pCk3gix->ReadInt16(); |
382 | schoenebeck | 930 | pGroup = pFile->GetGroup(iSampleGroup); |
383 | schoenebeck | 809 | } else { // '3gix' chunk missing |
384 | schoenebeck | 930 | // by default assigned to that mandatory "Default Group" |
385 | pGroup = pFile->GetGroup(0); | ||
386 | schoenebeck | 809 | } |
387 | schoenebeck | 2 | |
388 | schoenebeck | 809 | pCkSmpl = waveList->GetSubChunk(CHUNK_ID_SMPL); |
389 | if (pCkSmpl) { | ||
390 | Manufacturer = pCkSmpl->ReadInt32(); | ||
391 | Product = pCkSmpl->ReadInt32(); | ||
392 | SamplePeriod = pCkSmpl->ReadInt32(); | ||
393 | MIDIUnityNote = pCkSmpl->ReadInt32(); | ||
394 | FineTune = pCkSmpl->ReadInt32(); | ||
395 | pCkSmpl->Read(&SMPTEFormat, 1, 4); | ||
396 | SMPTEOffset = pCkSmpl->ReadInt32(); | ||
397 | Loops = pCkSmpl->ReadInt32(); | ||
398 | pCkSmpl->ReadInt32(); // manufByt | ||
399 | LoopID = pCkSmpl->ReadInt32(); | ||
400 | pCkSmpl->Read(&LoopType, 1, 4); | ||
401 | LoopStart = pCkSmpl->ReadInt32(); | ||
402 | LoopEnd = pCkSmpl->ReadInt32(); | ||
403 | LoopFraction = pCkSmpl->ReadInt32(); | ||
404 | LoopPlayCount = pCkSmpl->ReadInt32(); | ||
405 | } else { // 'smpl' chunk missing | ||
406 | // use default values | ||
407 | Manufacturer = 0; | ||
408 | Product = 0; | ||
409 | persson | 928 | SamplePeriod = uint32_t(1000000000.0 / SamplesPerSecond + 0.5); |
410 | persson | 1218 | MIDIUnityNote = 60; |
411 | schoenebeck | 809 | FineTune = 0; |
412 | persson | 1182 | SMPTEFormat = smpte_format_no_offset; |
413 | schoenebeck | 809 | SMPTEOffset = 0; |
414 | Loops = 0; | ||
415 | LoopID = 0; | ||
416 | persson | 1182 | LoopType = loop_type_normal; |
417 | schoenebeck | 809 | LoopStart = 0; |
418 | LoopEnd = 0; | ||
419 | LoopFraction = 0; | ||
420 | LoopPlayCount = 0; | ||
421 | } | ||
422 | schoenebeck | 2 | |
423 | FrameTable = NULL; | ||
424 | SamplePos = 0; | ||
425 | RAMCache.Size = 0; | ||
426 | RAMCache.pStart = NULL; | ||
427 | RAMCache.NullExtensionSize = 0; | ||
428 | |||
429 | persson | 365 | if (BitDepth > 24) throw gig::Exception("Only samples up to 24 bit supported"); |
430 | |||
431 | persson | 437 | RIFF::Chunk* ewav = waveList->GetSubChunk(CHUNK_ID_EWAV); |
432 | Compressed = ewav; | ||
433 | Dithered = false; | ||
434 | TruncatedBits = 0; | ||
435 | schoenebeck | 2 | if (Compressed) { |
436 | persson | 437 | uint32_t version = ewav->ReadInt32(); |
437 | if (version == 3 && BitDepth == 24) { | ||
438 | Dithered = ewav->ReadInt32(); | ||
439 | ewav->SetPos(Channels == 2 ? 84 : 64); | ||
440 | TruncatedBits = ewav->ReadInt32(); | ||
441 | } | ||
442 | schoenebeck | 2 | ScanCompressedSample(); |
443 | } | ||
444 | schoenebeck | 317 | |
445 | // we use a buffer for decompression and for truncating 24 bit samples to 16 bit | ||
446 | schoenebeck | 384 | if ((Compressed || BitDepth == 24) && !InternalDecompressionBuffer.Size) { |
447 | InternalDecompressionBuffer.pStart = new unsigned char[INITIAL_SAMPLE_BUFFER_SIZE]; | ||
448 | InternalDecompressionBuffer.Size = INITIAL_SAMPLE_BUFFER_SIZE; | ||
449 | schoenebeck | 317 | } |
450 | persson | 437 | FrameOffset = 0; // just for streaming compressed samples |
451 | schoenebeck | 21 | |
452 | persson | 864 | LoopSize = LoopEnd - LoopStart + 1; |
453 | schoenebeck | 2 | } |
454 | |||
455 | schoenebeck | 809 | /** |
456 | * Apply sample and its settings to the respective RIFF chunks. You have | ||
457 | * to call File::Save() to make changes persistent. | ||
458 | * | ||
459 | * Usually there is absolutely no need to call this method explicitly. | ||
460 | * It will be called automatically when File::Save() was called. | ||
461 | * | ||
462 | schoenebeck | 1050 | * @throws DLS::Exception if FormatTag != DLS_WAVE_FORMAT_PCM or no sample data |
463 | schoenebeck | 809 | * was provided yet |
464 | * @throws gig::Exception if there is any invalid sample setting | ||
465 | */ | ||
466 | void Sample::UpdateChunks() { | ||
467 | // first update base class's chunks | ||
468 | DLS::Sample::UpdateChunks(); | ||
469 | |||
470 | // make sure 'smpl' chunk exists | ||
471 | pCkSmpl = pWaveList->GetSubChunk(CHUNK_ID_SMPL); | ||
472 | persson | 1182 | if (!pCkSmpl) { |
473 | pCkSmpl = pWaveList->AddSubChunk(CHUNK_ID_SMPL, 60); | ||
474 | memset(pCkSmpl->LoadChunkData(), 0, 60); | ||
475 | } | ||
476 | schoenebeck | 809 | // update 'smpl' chunk |
477 | uint8_t* pData = (uint8_t*) pCkSmpl->LoadChunkData(); | ||
478 | persson | 918 | SamplePeriod = uint32_t(1000000000.0 / SamplesPerSecond + 0.5); |
479 | persson | 1179 | store32(&pData[0], Manufacturer); |
480 | store32(&pData[4], Product); | ||
481 | store32(&pData[8], SamplePeriod); | ||
482 | store32(&pData[12], MIDIUnityNote); | ||
483 | store32(&pData[16], FineTune); | ||
484 | store32(&pData[20], SMPTEFormat); | ||
485 | store32(&pData[24], SMPTEOffset); | ||
486 | store32(&pData[28], Loops); | ||
487 | schoenebeck | 809 | |
488 | // we skip 'manufByt' for now (4 bytes) | ||
489 | |||
490 | persson | 1179 | store32(&pData[36], LoopID); |
491 | store32(&pData[40], LoopType); | ||
492 | store32(&pData[44], LoopStart); | ||
493 | store32(&pData[48], LoopEnd); | ||
494 | store32(&pData[52], LoopFraction); | ||
495 | store32(&pData[56], LoopPlayCount); | ||
496 | schoenebeck | 809 | |
497 | // make sure '3gix' chunk exists | ||
498 | pCk3gix = pWaveList->GetSubChunk(CHUNK_ID_3GIX); | ||
499 | if (!pCk3gix) pCk3gix = pWaveList->AddSubChunk(CHUNK_ID_3GIX, 4); | ||
500 | schoenebeck | 929 | // determine appropriate sample group index (to be stored in chunk) |
501 | schoenebeck | 930 | uint16_t iSampleGroup = 0; // 0 refers to default sample group |
502 | schoenebeck | 929 | File* pFile = static_cast<File*>(pParent); |
503 | if (pFile->pGroups) { | ||
504 | std::list<Group*>::iterator iter = pFile->pGroups->begin(); | ||
505 | std::list<Group*>::iterator end = pFile->pGroups->end(); | ||
506 | schoenebeck | 930 | for (int i = 0; iter != end; i++, iter++) { |
507 | schoenebeck | 929 | if (*iter == pGroup) { |
508 | iSampleGroup = i; | ||
509 | break; // found | ||
510 | } | ||
511 | } | ||
512 | } | ||
513 | schoenebeck | 809 | // update '3gix' chunk |
514 | pData = (uint8_t*) pCk3gix->LoadChunkData(); | ||
515 | persson | 1179 | store16(&pData[0], iSampleGroup); |
516 | schoenebeck | 809 | } |
517 | |||
518 | schoenebeck | 2 | /// Scans compressed samples for mandatory informations (e.g. actual number of total sample points). |
519 | void Sample::ScanCompressedSample() { | ||
520 | //TODO: we have to add some more scans here (e.g. determine compression rate) | ||
521 | this->SamplesTotal = 0; | ||
522 | std::list<unsigned long> frameOffsets; | ||
523 | |||
524 | persson | 365 | SamplesPerFrame = BitDepth == 24 ? 256 : 2048; |
525 | schoenebeck | 384 | WorstCaseFrameSize = SamplesPerFrame * FrameSize + Channels; // +Channels for compression flag |
526 | persson | 365 | |
527 | schoenebeck | 2 | // Scanning |
528 | pCkData->SetPos(0); | ||
529 | persson | 365 | if (Channels == 2) { // Stereo |
530 | for (int i = 0 ; ; i++) { | ||
531 | // for 24 bit samples every 8:th frame offset is | ||
532 | // stored, to save some memory | ||
533 | if (BitDepth != 24 || (i & 7) == 0) frameOffsets.push_back(pCkData->GetPos()); | ||
534 | |||
535 | const int mode_l = pCkData->ReadUint8(); | ||
536 | const int mode_r = pCkData->ReadUint8(); | ||
537 | if (mode_l > 5 || mode_r > 5) throw gig::Exception("Unknown compression mode"); | ||
538 | const unsigned long frameSize = bytesPerFrame[mode_l] + bytesPerFrame[mode_r]; | ||
539 | |||
540 | if (pCkData->RemainingBytes() <= frameSize) { | ||
541 | SamplesInLastFrame = | ||
542 | ((pCkData->RemainingBytes() - headerSize[mode_l] - headerSize[mode_r]) << 3) / | ||
543 | (bitsPerSample[mode_l] + bitsPerSample[mode_r]); | ||
544 | SamplesTotal += SamplesInLastFrame; | ||
545 | schoenebeck | 2 | break; |
546 | persson | 365 | } |
547 | SamplesTotal += SamplesPerFrame; | ||
548 | pCkData->SetPos(frameSize, RIFF::stream_curpos); | ||
549 | } | ||
550 | } | ||
551 | else { // Mono | ||
552 | for (int i = 0 ; ; i++) { | ||
553 | if (BitDepth != 24 || (i & 7) == 0) frameOffsets.push_back(pCkData->GetPos()); | ||
554 | |||
555 | const int mode = pCkData->ReadUint8(); | ||
556 | if (mode > 5) throw gig::Exception("Unknown compression mode"); | ||
557 | const unsigned long frameSize = bytesPerFrame[mode]; | ||
558 | |||
559 | if (pCkData->RemainingBytes() <= frameSize) { | ||
560 | SamplesInLastFrame = | ||
561 | ((pCkData->RemainingBytes() - headerSize[mode]) << 3) / bitsPerSample[mode]; | ||
562 | SamplesTotal += SamplesInLastFrame; | ||
563 | schoenebeck | 2 | break; |
564 | persson | 365 | } |
565 | SamplesTotal += SamplesPerFrame; | ||
566 | pCkData->SetPos(frameSize, RIFF::stream_curpos); | ||
567 | schoenebeck | 2 | } |
568 | } | ||
569 | pCkData->SetPos(0); | ||
570 | |||
571 | // Build the frames table (which is used for fast resolving of a frame's chunk offset) | ||
572 | if (FrameTable) delete[] FrameTable; | ||
573 | FrameTable = new unsigned long[frameOffsets.size()]; | ||
574 | std::list<unsigned long>::iterator end = frameOffsets.end(); | ||
575 | std::list<unsigned long>::iterator iter = frameOffsets.begin(); | ||
576 | for (int i = 0; iter != end; i++, iter++) { | ||
577 | FrameTable[i] = *iter; | ||
578 | } | ||
579 | } | ||
580 | |||
581 | /** | ||
582 | * Loads (and uncompresses if needed) the whole sample wave into RAM. Use | ||
583 | * ReleaseSampleData() to free the memory if you don't need the cached | ||
584 | * sample data anymore. | ||
585 | * | ||
586 | * @returns buffer_t structure with start address and size of the buffer | ||
587 | * in bytes | ||
588 | * @see ReleaseSampleData(), Read(), SetPos() | ||
589 | */ | ||
590 | buffer_t Sample::LoadSampleData() { | ||
591 | return LoadSampleDataWithNullSamplesExtension(this->SamplesTotal, 0); // 0 amount of NullSamples | ||
592 | } | ||
593 | |||
594 | /** | ||
595 | * Reads (uncompresses if needed) and caches the first \a SampleCount | ||
596 | * numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the | ||
597 | * memory space if you don't need the cached samples anymore. There is no | ||
598 | * guarantee that exactly \a SampleCount samples will be cached; this is | ||
599 | * not an error. The size will be eventually truncated e.g. to the | ||
600 | * beginning of a frame of a compressed sample. This is done for | ||
601 | * efficiency reasons while streaming the wave by your sampler engine | ||
602 | * later. Read the <i>Size</i> member of the <i>buffer_t</i> structure | ||
603 | * that will be returned to determine the actual cached samples, but note | ||
604 | * that the size is given in bytes! You get the number of actually cached | ||
605 | * samples by dividing it by the frame size of the sample: | ||
606 | schoenebeck | 384 | * @code |
607 | schoenebeck | 2 | * buffer_t buf = pSample->LoadSampleData(acquired_samples); |
608 | * long cachedsamples = buf.Size / pSample->FrameSize; | ||
609 | schoenebeck | 384 | * @endcode |
610 | schoenebeck | 2 | * |
611 | * @param SampleCount - number of sample points to load into RAM | ||
612 | * @returns buffer_t structure with start address and size of | ||
613 | * the cached sample data in bytes | ||
614 | * @see ReleaseSampleData(), Read(), SetPos() | ||
615 | */ | ||
616 | buffer_t Sample::LoadSampleData(unsigned long SampleCount) { | ||
617 | return LoadSampleDataWithNullSamplesExtension(SampleCount, 0); // 0 amount of NullSamples | ||
618 | } | ||
619 | |||
620 | /** | ||
621 | * Loads (and uncompresses if needed) the whole sample wave into RAM. Use | ||
622 | * ReleaseSampleData() to free the memory if you don't need the cached | ||
623 | * sample data anymore. | ||
624 | * The method will add \a NullSamplesCount silence samples past the | ||
625 | * official buffer end (this won't affect the 'Size' member of the | ||
626 | * buffer_t structure, that means 'Size' always reflects the size of the | ||
627 | * actual sample data, the buffer might be bigger though). Silence | ||
628 | * samples past the official buffer are needed for differential | ||
629 | * algorithms that always have to take subsequent samples into account | ||
630 | * (resampling/interpolation would be an important example) and avoids | ||
631 | * memory access faults in such cases. | ||
632 | * | ||
633 | * @param NullSamplesCount - number of silence samples the buffer should | ||
634 | * be extended past it's data end | ||
635 | * @returns buffer_t structure with start address and | ||
636 | * size of the buffer in bytes | ||
637 | * @see ReleaseSampleData(), Read(), SetPos() | ||
638 | */ | ||
639 | buffer_t Sample::LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount) { | ||
640 | return LoadSampleDataWithNullSamplesExtension(this->SamplesTotal, NullSamplesCount); | ||
641 | } | ||
642 | |||
643 | /** | ||
644 | * Reads (uncompresses if needed) and caches the first \a SampleCount | ||
645 | * numbers of SamplePoints in RAM. Use ReleaseSampleData() to free the | ||
646 | * memory space if you don't need the cached samples anymore. There is no | ||
647 | * guarantee that exactly \a SampleCount samples will be cached; this is | ||
648 | * not an error. The size will be eventually truncated e.g. to the | ||
649 | * beginning of a frame of a compressed sample. This is done for | ||
650 | * efficiency reasons while streaming the wave by your sampler engine | ||
651 | * later. Read the <i>Size</i> member of the <i>buffer_t</i> structure | ||
652 | * that will be returned to determine the actual cached samples, but note | ||
653 | * that the size is given in bytes! You get the number of actually cached | ||
654 | * samples by dividing it by the frame size of the sample: | ||
655 | schoenebeck | 384 | * @code |
656 | schoenebeck | 2 | * buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(acquired_samples, null_samples); |
657 | * long cachedsamples = buf.Size / pSample->FrameSize; | ||
658 | schoenebeck | 384 | * @endcode |
659 | schoenebeck | 2 | * The method will add \a NullSamplesCount silence samples past the |
660 | * official buffer end (this won't affect the 'Size' member of the | ||
661 | * buffer_t structure, that means 'Size' always reflects the size of the | ||
662 | * actual sample data, the buffer might be bigger though). Silence | ||
663 | * samples past the official buffer are needed for differential | ||
664 | * algorithms that always have to take subsequent samples into account | ||
665 | * (resampling/interpolation would be an important example) and avoids | ||
666 | * memory access faults in such cases. | ||
667 | * | ||
668 | * @param SampleCount - number of sample points to load into RAM | ||
669 | * @param NullSamplesCount - number of silence samples the buffer should | ||
670 | * be extended past it's data end | ||
671 | * @returns buffer_t structure with start address and | ||
672 | * size of the cached sample data in bytes | ||
673 | * @see ReleaseSampleData(), Read(), SetPos() | ||
674 | */ | ||
675 | buffer_t Sample::LoadSampleDataWithNullSamplesExtension(unsigned long SampleCount, uint NullSamplesCount) { | ||
676 | if (SampleCount > this->SamplesTotal) SampleCount = this->SamplesTotal; | ||
677 | if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; | ||
678 | unsigned long allocationsize = (SampleCount + NullSamplesCount) * this->FrameSize; | ||
679 | RAMCache.pStart = new int8_t[allocationsize]; | ||
680 | RAMCache.Size = Read(RAMCache.pStart, SampleCount) * this->FrameSize; | ||
681 | RAMCache.NullExtensionSize = allocationsize - RAMCache.Size; | ||
682 | // fill the remaining buffer space with silence samples | ||
683 | memset((int8_t*)RAMCache.pStart + RAMCache.Size, 0, RAMCache.NullExtensionSize); | ||
684 | return GetCache(); | ||
685 | } | ||
686 | |||
687 | /** | ||
688 | * Returns current cached sample points. A buffer_t structure will be | ||
689 | * returned which contains address pointer to the begin of the cache and | ||
690 | * the size of the cached sample data in bytes. Use | ||
691 | * <i>LoadSampleData()</i> to cache a specific amount of sample points in | ||
692 | * RAM. | ||
693 | * | ||
694 | * @returns buffer_t structure with current cached sample points | ||
695 | * @see LoadSampleData(); | ||
696 | */ | ||
697 | buffer_t Sample::GetCache() { | ||
698 | // return a copy of the buffer_t structure | ||
699 | buffer_t result; | ||
700 | result.Size = this->RAMCache.Size; | ||
701 | result.pStart = this->RAMCache.pStart; | ||
702 | result.NullExtensionSize = this->RAMCache.NullExtensionSize; | ||
703 | return result; | ||
704 | } | ||
705 | |||
706 | /** | ||
707 | * Frees the cached sample from RAM if loaded with | ||
708 | * <i>LoadSampleData()</i> previously. | ||
709 | * | ||
710 | * @see LoadSampleData(); | ||
711 | */ | ||
712 | void Sample::ReleaseSampleData() { | ||
713 | if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; | ||
714 | RAMCache.pStart = NULL; | ||
715 | RAMCache.Size = 0; | ||
716 | } | ||
717 | |||
718 | schoenebeck | 809 | /** @brief Resize sample. |
719 | * | ||
720 | * Resizes the sample's wave form data, that is the actual size of | ||
721 | * sample wave data possible to be written for this sample. This call | ||
722 | * will return immediately and just schedule the resize operation. You | ||
723 | * should call File::Save() to actually perform the resize operation(s) | ||
724 | * "physically" to the file. As this can take a while on large files, it | ||
725 | * is recommended to call Resize() first on all samples which have to be | ||
726 | * resized and finally to call File::Save() to perform all those resize | ||
727 | * operations in one rush. | ||
728 | * | ||
729 | * The actual size (in bytes) is dependant to the current FrameSize | ||
730 | * value. You may want to set FrameSize before calling Resize(). | ||
731 | * | ||
732 | * <b>Caution:</b> You cannot directly write (i.e. with Write()) to | ||
733 | * enlarged samples before calling File::Save() as this might exceed the | ||
734 | * current sample's boundary! | ||
735 | * | ||
736 | schoenebeck | 1050 | * Also note: only DLS_WAVE_FORMAT_PCM is currently supported, that is |
737 | * FormatTag must be DLS_WAVE_FORMAT_PCM. Trying to resize samples with | ||
738 | schoenebeck | 809 | * other formats will fail! |
739 | * | ||
740 | * @param iNewSize - new sample wave data size in sample points (must be | ||
741 | * greater than zero) | ||
742 | schoenebeck | 1050 | * @throws DLS::Excecption if FormatTag != DLS_WAVE_FORMAT_PCM |
743 | schoenebeck | 809 | * or if \a iNewSize is less than 1 |
744 | * @throws gig::Exception if existing sample is compressed | ||
745 | * @see DLS::Sample::GetSize(), DLS::Sample::FrameSize, | ||
746 | * DLS::Sample::FormatTag, File::Save() | ||
747 | */ | ||
748 | void Sample::Resize(int iNewSize) { | ||
749 | if (Compressed) throw gig::Exception("There is no support for modifying compressed samples (yet)"); | ||
750 | DLS::Sample::Resize(iNewSize); | ||
751 | } | ||
752 | |||
753 | schoenebeck | 2 | /** |
754 | * Sets the position within the sample (in sample points, not in | ||
755 | * bytes). Use this method and <i>Read()</i> if you don't want to load | ||
756 | * the sample into RAM, thus for disk streaming. | ||
757 | * | ||
758 | * Although the original Gigasampler engine doesn't allow positioning | ||
759 | * within compressed samples, I decided to implement it. Even though | ||
760 | * the Gigasampler format doesn't allow to define loops for compressed | ||
761 | * samples at the moment, positioning within compressed samples might be | ||
762 | * interesting for some sampler engines though. The only drawback about | ||
763 | * my decision is that it takes longer to load compressed gig Files on | ||
764 | * startup, because it's neccessary to scan the samples for some | ||
765 | * mandatory informations. But I think as it doesn't affect the runtime | ||
766 | * efficiency, nobody will have a problem with that. | ||
767 | * | ||
768 | * @param SampleCount number of sample points to jump | ||
769 | * @param Whence optional: to which relation \a SampleCount refers | ||
770 | * to, if omited <i>RIFF::stream_start</i> is assumed | ||
771 | * @returns the new sample position | ||
772 | * @see Read() | ||
773 | */ | ||
774 | unsigned long Sample::SetPos(unsigned long SampleCount, RIFF::stream_whence_t Whence) { | ||
775 | if (Compressed) { | ||
776 | switch (Whence) { | ||
777 | case RIFF::stream_curpos: | ||
778 | this->SamplePos += SampleCount; | ||
779 | break; | ||
780 | case RIFF::stream_end: | ||
781 | this->SamplePos = this->SamplesTotal - 1 - SampleCount; | ||
782 | break; | ||
783 | case RIFF::stream_backward: | ||
784 | this->SamplePos -= SampleCount; | ||
785 | break; | ||
786 | case RIFF::stream_start: default: | ||
787 | this->SamplePos = SampleCount; | ||
788 | break; | ||
789 | } | ||
790 | if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; | ||
791 | |||
792 | unsigned long frame = this->SamplePos / 2048; // to which frame to jump | ||
793 | this->FrameOffset = this->SamplePos % 2048; // offset (in sample points) within that frame | ||
794 | pCkData->SetPos(FrameTable[frame]); // set chunk pointer to the start of sought frame | ||
795 | return this->SamplePos; | ||
796 | } | ||
797 | else { // not compressed | ||
798 | unsigned long orderedBytes = SampleCount * this->FrameSize; | ||
799 | unsigned long result = pCkData->SetPos(orderedBytes, Whence); | ||
800 | return (result == orderedBytes) ? SampleCount | ||
801 | : result / this->FrameSize; | ||
802 | } | ||
803 | } | ||
804 | |||
805 | /** | ||
806 | * Returns the current position in the sample (in sample points). | ||
807 | */ | ||
808 | unsigned long Sample::GetPos() { | ||
809 | if (Compressed) return SamplePos; | ||
810 | else return pCkData->GetPos() / FrameSize; | ||
811 | } | ||
812 | |||
813 | /** | ||
814 | schoenebeck | 24 | * Reads \a SampleCount number of sample points from the position stored |
815 | * in \a pPlaybackState into the buffer pointed by \a pBuffer and moves | ||
816 | * the position within the sample respectively, this method honors the | ||
817 | * looping informations of the sample (if any). The sample wave stream | ||
818 | * will be decompressed on the fly if using a compressed sample. Use this | ||
819 | * method if you don't want to load the sample into RAM, thus for disk | ||
820 | * streaming. All this methods needs to know to proceed with streaming | ||
821 | * for the next time you call this method is stored in \a pPlaybackState. | ||
822 | * You have to allocate and initialize the playback_state_t structure by | ||
823 | * yourself before you use it to stream a sample: | ||
824 | schoenebeck | 384 | * @code |
825 | * gig::playback_state_t playbackstate; | ||
826 | * playbackstate.position = 0; | ||
827 | * playbackstate.reverse = false; | ||
828 | * playbackstate.loop_cycles_left = pSample->LoopPlayCount; | ||
829 | * @endcode | ||
830 | schoenebeck | 24 | * You don't have to take care of things like if there is actually a loop |
831 | * defined or if the current read position is located within a loop area. | ||
832 | * The method already handles such cases by itself. | ||
833 | * | ||
834 | schoenebeck | 384 | * <b>Caution:</b> If you are using more than one streaming thread, you |
835 | * have to use an external decompression buffer for <b>EACH</b> | ||
836 | * streaming thread to avoid race conditions and crashes! | ||
837 | * | ||
838 | schoenebeck | 24 | * @param pBuffer destination buffer |
839 | * @param SampleCount number of sample points to read | ||
840 | * @param pPlaybackState will be used to store and reload the playback | ||
841 | * state for the next ReadAndLoop() call | ||
842 | persson | 864 | * @param pDimRgn dimension region with looping information |
843 | schoenebeck | 384 | * @param pExternalDecompressionBuffer (optional) external buffer to use for decompression |
844 | schoenebeck | 24 | * @returns number of successfully read sample points |
845 | schoenebeck | 384 | * @see CreateDecompressionBuffer() |
846 | schoenebeck | 24 | */ |
847 | persson | 864 | unsigned long Sample::ReadAndLoop(void* pBuffer, unsigned long SampleCount, playback_state_t* pPlaybackState, |
848 | DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer) { | ||
849 | schoenebeck | 24 | unsigned long samplestoread = SampleCount, totalreadsamples = 0, readsamples, samplestoloopend; |
850 | uint8_t* pDst = (uint8_t*) pBuffer; | ||
851 | |||
852 | SetPos(pPlaybackState->position); // recover position from the last time | ||
853 | |||
854 | persson | 864 | if (pDimRgn->SampleLoops) { // honor looping if there are loop points defined |
855 | schoenebeck | 24 | |
856 | persson | 864 | const DLS::sample_loop_t& loop = pDimRgn->pSampleLoops[0]; |
857 | const uint32_t loopEnd = loop.LoopStart + loop.LoopLength; | ||
858 | schoenebeck | 24 | |
859 | persson | 864 | if (GetPos() <= loopEnd) { |
860 | switch (loop.LoopType) { | ||
861 | schoenebeck | 24 | |
862 | persson | 864 | case loop_type_bidirectional: { //TODO: not tested yet! |
863 | do { | ||
864 | // if not endless loop check if max. number of loop cycles have been passed | ||
865 | if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; | ||
866 | schoenebeck | 24 | |
867 | persson | 864 | if (!pPlaybackState->reverse) { // forward playback |
868 | do { | ||
869 | samplestoloopend = loopEnd - GetPos(); | ||
870 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); | ||
871 | samplestoread -= readsamples; | ||
872 | totalreadsamples += readsamples; | ||
873 | if (readsamples == samplestoloopend) { | ||
874 | pPlaybackState->reverse = true; | ||
875 | break; | ||
876 | } | ||
877 | } while (samplestoread && readsamples); | ||
878 | } | ||
879 | else { // backward playback | ||
880 | schoenebeck | 24 | |
881 | persson | 864 | // as we can only read forward from disk, we have to |
882 | // determine the end position within the loop first, | ||
883 | // read forward from that 'end' and finally after | ||
884 | // reading, swap all sample frames so it reflects | ||
885 | // backward playback | ||
886 | schoenebeck | 24 | |
887 | persson | 864 | unsigned long swapareastart = totalreadsamples; |
888 | unsigned long loopoffset = GetPos() - loop.LoopStart; | ||
889 | unsigned long samplestoreadinloop = Min(samplestoread, loopoffset); | ||
890 | unsigned long reverseplaybackend = GetPos() - samplestoreadinloop; | ||
891 | schoenebeck | 24 | |
892 | persson | 864 | SetPos(reverseplaybackend); |
893 | schoenebeck | 24 | |
894 | persson | 864 | // read samples for backward playback |
895 | do { | ||
896 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], samplestoreadinloop, pExternalDecompressionBuffer); | ||
897 | samplestoreadinloop -= readsamples; | ||
898 | samplestoread -= readsamples; | ||
899 | totalreadsamples += readsamples; | ||
900 | } while (samplestoreadinloop && readsamples); | ||
901 | schoenebeck | 24 | |
902 | persson | 864 | SetPos(reverseplaybackend); // pretend we really read backwards |
903 | |||
904 | if (reverseplaybackend == loop.LoopStart) { | ||
905 | pPlaybackState->loop_cycles_left--; | ||
906 | pPlaybackState->reverse = false; | ||
907 | } | ||
908 | |||
909 | // reverse the sample frames for backward playback | ||
910 | SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); | ||
911 | schoenebeck | 24 | } |
912 | persson | 864 | } while (samplestoread && readsamples); |
913 | break; | ||
914 | } | ||
915 | schoenebeck | 24 | |
916 | persson | 864 | case loop_type_backward: { // TODO: not tested yet! |
917 | // forward playback (not entered the loop yet) | ||
918 | if (!pPlaybackState->reverse) do { | ||
919 | samplestoloopend = loopEnd - GetPos(); | ||
920 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); | ||
921 | samplestoread -= readsamples; | ||
922 | totalreadsamples += readsamples; | ||
923 | if (readsamples == samplestoloopend) { | ||
924 | pPlaybackState->reverse = true; | ||
925 | break; | ||
926 | } | ||
927 | } while (samplestoread && readsamples); | ||
928 | schoenebeck | 24 | |
929 | persson | 864 | if (!samplestoread) break; |
930 | schoenebeck | 24 | |
931 | persson | 864 | // as we can only read forward from disk, we have to |
932 | // determine the end position within the loop first, | ||
933 | // read forward from that 'end' and finally after | ||
934 | // reading, swap all sample frames so it reflects | ||
935 | // backward playback | ||
936 | schoenebeck | 24 | |
937 | persson | 864 | unsigned long swapareastart = totalreadsamples; |
938 | unsigned long loopoffset = GetPos() - loop.LoopStart; | ||
939 | unsigned long samplestoreadinloop = (this->LoopPlayCount) ? Min(samplestoread, pPlaybackState->loop_cycles_left * loop.LoopLength - loopoffset) | ||
940 | : samplestoread; | ||
941 | unsigned long reverseplaybackend = loop.LoopStart + Abs((loopoffset - samplestoreadinloop) % loop.LoopLength); | ||
942 | schoenebeck | 24 | |
943 | persson | 864 | SetPos(reverseplaybackend); |
944 | schoenebeck | 24 | |
945 | persson | 864 | // read samples for backward playback |
946 | do { | ||
947 | // if not endless loop check if max. number of loop cycles have been passed | ||
948 | if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; | ||
949 | samplestoloopend = loopEnd - GetPos(); | ||
950 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoreadinloop, samplestoloopend), pExternalDecompressionBuffer); | ||
951 | samplestoreadinloop -= readsamples; | ||
952 | samplestoread -= readsamples; | ||
953 | totalreadsamples += readsamples; | ||
954 | if (readsamples == samplestoloopend) { | ||
955 | pPlaybackState->loop_cycles_left--; | ||
956 | SetPos(loop.LoopStart); | ||
957 | } | ||
958 | } while (samplestoreadinloop && readsamples); | ||
959 | schoenebeck | 24 | |
960 | persson | 864 | SetPos(reverseplaybackend); // pretend we really read backwards |
961 | schoenebeck | 24 | |
962 | persson | 864 | // reverse the sample frames for backward playback |
963 | SwapMemoryArea(&pDst[swapareastart * this->FrameSize], (totalreadsamples - swapareastart) * this->FrameSize, this->FrameSize); | ||
964 | break; | ||
965 | } | ||
966 | schoenebeck | 24 | |
967 | persson | 864 | default: case loop_type_normal: { |
968 | do { | ||
969 | // if not endless loop check if max. number of loop cycles have been passed | ||
970 | if (this->LoopPlayCount && !pPlaybackState->loop_cycles_left) break; | ||
971 | samplestoloopend = loopEnd - GetPos(); | ||
972 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], Min(samplestoread, samplestoloopend), pExternalDecompressionBuffer); | ||
973 | samplestoread -= readsamples; | ||
974 | totalreadsamples += readsamples; | ||
975 | if (readsamples == samplestoloopend) { | ||
976 | pPlaybackState->loop_cycles_left--; | ||
977 | SetPos(loop.LoopStart); | ||
978 | } | ||
979 | } while (samplestoread && readsamples); | ||
980 | break; | ||
981 | } | ||
982 | schoenebeck | 24 | } |
983 | } | ||
984 | } | ||
985 | |||
986 | // read on without looping | ||
987 | if (samplestoread) do { | ||
988 | schoenebeck | 384 | readsamples = Read(&pDst[totalreadsamples * this->FrameSize], samplestoread, pExternalDecompressionBuffer); |
989 | schoenebeck | 24 | samplestoread -= readsamples; |
990 | totalreadsamples += readsamples; | ||
991 | } while (readsamples && samplestoread); | ||
992 | |||
993 | // store current position | ||
994 | pPlaybackState->position = GetPos(); | ||
995 | |||
996 | return totalreadsamples; | ||
997 | } | ||
998 | |||
999 | /** | ||
1000 | schoenebeck | 2 | * Reads \a SampleCount number of sample points from the current |
1001 | * position into the buffer pointed by \a pBuffer and increments the | ||
1002 | * position within the sample. The sample wave stream will be | ||
1003 | * decompressed on the fly if using a compressed sample. Use this method | ||
1004 | * and <i>SetPos()</i> if you don't want to load the sample into RAM, | ||
1005 | * thus for disk streaming. | ||
1006 | * | ||
1007 | schoenebeck | 384 | * <b>Caution:</b> If you are using more than one streaming thread, you |
1008 | * have to use an external decompression buffer for <b>EACH</b> | ||
1009 | * streaming thread to avoid race conditions and crashes! | ||
1010 | * | ||
1011 | persson | 902 | * For 16 bit samples, the data in the buffer will be int16_t |
1012 | * (using native endianness). For 24 bit, the buffer will | ||
1013 | * contain three bytes per sample, little-endian. | ||
1014 | * | ||
1015 | schoenebeck | 2 | * @param pBuffer destination buffer |
1016 | * @param SampleCount number of sample points to read | ||
1017 | schoenebeck | 384 | * @param pExternalDecompressionBuffer (optional) external buffer to use for decompression |
1018 | schoenebeck | 2 | * @returns number of successfully read sample points |
1019 | schoenebeck | 384 | * @see SetPos(), CreateDecompressionBuffer() |
1020 | schoenebeck | 2 | */ |
1021 | schoenebeck | 384 | unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount, buffer_t* pExternalDecompressionBuffer) { |
1022 | schoenebeck | 21 | if (SampleCount == 0) return 0; |
1023 | schoenebeck | 317 | if (!Compressed) { |
1024 | if (BitDepth == 24) { | ||
1025 | persson | 902 | return pCkData->Read(pBuffer, SampleCount * FrameSize, 1) / FrameSize; |
1026 | schoenebeck | 317 | } |
1027 | persson | 365 | else { // 16 bit |
1028 | // (pCkData->Read does endian correction) | ||
1029 | return Channels == 2 ? pCkData->Read(pBuffer, SampleCount << 1, 2) >> 1 | ||
1030 | : pCkData->Read(pBuffer, SampleCount, 2); | ||
1031 | } | ||
1032 | schoenebeck | 317 | } |
1033 | persson | 365 | else { |
1034 | schoenebeck | 11 | if (this->SamplePos >= this->SamplesTotal) return 0; |
1035 | persson | 365 | //TODO: efficiency: maybe we should test for an average compression rate |
1036 | unsigned long assumedsize = GuessSize(SampleCount), | ||
1037 | schoenebeck | 2 | remainingbytes = 0, // remaining bytes in the local buffer |
1038 | remainingsamples = SampleCount, | ||
1039 | persson | 365 | copysamples, skipsamples, |
1040 | currentframeoffset = this->FrameOffset; // offset in current sample frame since last Read() | ||
1041 | schoenebeck | 2 | this->FrameOffset = 0; |
1042 | |||
1043 | schoenebeck | 384 | buffer_t* pDecompressionBuffer = (pExternalDecompressionBuffer) ? pExternalDecompressionBuffer : &InternalDecompressionBuffer; |
1044 | |||
1045 | // if decompression buffer too small, then reduce amount of samples to read | ||
1046 | if (pDecompressionBuffer->Size < assumedsize) { | ||
1047 | std::cerr << "gig::Read(): WARNING - decompression buffer size too small!" << std::endl; | ||
1048 | SampleCount = WorstCaseMaxSamples(pDecompressionBuffer); | ||
1049 | remainingsamples = SampleCount; | ||
1050 | assumedsize = GuessSize(SampleCount); | ||
1051 | schoenebeck | 2 | } |
1052 | |||
1053 | schoenebeck | 384 | unsigned char* pSrc = (unsigned char*) pDecompressionBuffer->pStart; |
1054 | persson | 365 | int16_t* pDst = static_cast<int16_t*>(pBuffer); |
1055 | persson | 902 | uint8_t* pDst24 = static_cast<uint8_t*>(pBuffer); |
1056 | schoenebeck | 2 | remainingbytes = pCkData->Read(pSrc, assumedsize, 1); |
1057 | |||
1058 | persson | 365 | while (remainingsamples && remainingbytes) { |
1059 | unsigned long framesamples = SamplesPerFrame; | ||
1060 | unsigned long framebytes, rightChannelOffset = 0, nextFrameOffset; | ||
1061 | schoenebeck | 2 | |
1062 | persson | 365 | int mode_l = *pSrc++, mode_r = 0; |
1063 | |||
1064 | if (Channels == 2) { | ||
1065 | mode_r = *pSrc++; | ||
1066 | framebytes = bytesPerFrame[mode_l] + bytesPerFrame[mode_r] + 2; | ||
1067 | rightChannelOffset = bytesPerFrameNoHdr[mode_l]; | ||
1068 | nextFrameOffset = rightChannelOffset + bytesPerFrameNoHdr[mode_r]; | ||
1069 | if (remainingbytes < framebytes) { // last frame in sample | ||
1070 | framesamples = SamplesInLastFrame; | ||
1071 | if (mode_l == 4 && (framesamples & 1)) { | ||
1072 | rightChannelOffset = ((framesamples + 1) * bitsPerSample[mode_l]) >> 3; | ||
1073 | } | ||
1074 | else { | ||
1075 | rightChannelOffset = (framesamples * bitsPerSample[mode_l]) >> 3; | ||
1076 | } | ||
1077 | schoenebeck | 2 | } |
1078 | } | ||
1079 | persson | 365 | else { |
1080 | framebytes = bytesPerFrame[mode_l] + 1; | ||
1081 | nextFrameOffset = bytesPerFrameNoHdr[mode_l]; | ||
1082 | if (remainingbytes < framebytes) { | ||
1083 | framesamples = SamplesInLastFrame; | ||
1084 | } | ||
1085 | } | ||
1086 | schoenebeck | 2 | |
1087 | // determine how many samples in this frame to skip and read | ||
1088 | persson | 365 | if (currentframeoffset + remainingsamples >= framesamples) { |
1089 | if (currentframeoffset <= framesamples) { | ||
1090 | copysamples = framesamples - currentframeoffset; | ||
1091 | skipsamples = currentframeoffset; | ||
1092 | } | ||
1093 | else { | ||
1094 | copysamples = 0; | ||
1095 | skipsamples = framesamples; | ||
1096 | } | ||
1097 | schoenebeck | 2 | } |
1098 | else { | ||
1099 | persson | 365 | // This frame has enough data for pBuffer, but not |
1100 | // all of the frame is needed. Set file position | ||
1101 | // to start of this frame for next call to Read. | ||
1102 | schoenebeck | 2 | copysamples = remainingsamples; |
1103 | persson | 365 | skipsamples = currentframeoffset; |
1104 | pCkData->SetPos(remainingbytes, RIFF::stream_backward); | ||
1105 | this->FrameOffset = currentframeoffset + copysamples; | ||
1106 | } | ||
1107 | remainingsamples -= copysamples; | ||
1108 | |||
1109 | if (remainingbytes > framebytes) { | ||
1110 | remainingbytes -= framebytes; | ||
1111 | if (remainingsamples == 0 && | ||
1112 | currentframeoffset + copysamples == framesamples) { | ||
1113 | // This frame has enough data for pBuffer, and | ||
1114 | // all of the frame is needed. Set file | ||
1115 | // position to start of next frame for next | ||
1116 | // call to Read. FrameOffset is 0. | ||
1117 | schoenebeck | 2 | pCkData->SetPos(remainingbytes, RIFF::stream_backward); |
1118 | } | ||
1119 | } | ||
1120 | persson | 365 | else remainingbytes = 0; |
1121 | schoenebeck | 2 | |
1122 | persson | 365 | currentframeoffset -= skipsamples; |
1123 | schoenebeck | 2 | |
1124 | persson | 365 | if (copysamples == 0) { |
1125 | // skip this frame | ||
1126 | pSrc += framebytes - Channels; | ||
1127 | } | ||
1128 | else { | ||
1129 | const unsigned char* const param_l = pSrc; | ||
1130 | if (BitDepth == 24) { | ||
1131 | if (mode_l != 2) pSrc += 12; | ||
1132 | schoenebeck | 2 | |
1133 | persson | 365 | if (Channels == 2) { // Stereo |
1134 | const unsigned char* const param_r = pSrc; | ||
1135 | if (mode_r != 2) pSrc += 12; | ||
1136 | |||
1137 | persson | 902 | Decompress24(mode_l, param_l, 6, pSrc, pDst24, |
1138 | persson | 437 | skipsamples, copysamples, TruncatedBits); |
1139 | persson | 902 | Decompress24(mode_r, param_r, 6, pSrc + rightChannelOffset, pDst24 + 3, |
1140 | persson | 437 | skipsamples, copysamples, TruncatedBits); |
1141 | persson | 902 | pDst24 += copysamples * 6; |
1142 | schoenebeck | 2 | } |
1143 | persson | 365 | else { // Mono |
1144 | persson | 902 | Decompress24(mode_l, param_l, 3, pSrc, pDst24, |
1145 | persson | 437 | skipsamples, copysamples, TruncatedBits); |
1146 | persson | 902 | pDst24 += copysamples * 3; |
1147 | schoenebeck | 2 | } |
1148 | persson | 365 | } |
1149 | else { // 16 bit | ||
1150 | if (mode_l) pSrc += 4; | ||
1151 | schoenebeck | 2 | |
1152 | persson | 365 | int step; |
1153 | if (Channels == 2) { // Stereo | ||
1154 | const unsigned char* const param_r = pSrc; | ||
1155 | if (mode_r) pSrc += 4; | ||
1156 | |||
1157 | step = (2 - mode_l) + (2 - mode_r); | ||
1158 | persson | 372 | Decompress16(mode_l, param_l, step, 2, pSrc, pDst, skipsamples, copysamples); |
1159 | Decompress16(mode_r, param_r, step, 2, pSrc + (2 - mode_l), pDst + 1, | ||
1160 | persson | 365 | skipsamples, copysamples); |
1161 | pDst += copysamples << 1; | ||
1162 | schoenebeck | 2 | } |
1163 | persson | 365 | else { // Mono |
1164 | step = 2 - mode_l; | ||
1165 | persson | 372 | Decompress16(mode_l, param_l, step, 1, pSrc, pDst, skipsamples, copysamples); |
1166 | persson | 365 | pDst += copysamples; |
1167 | schoenebeck | 2 | } |
1168 | persson | 365 | } |
1169 | pSrc += nextFrameOffset; | ||
1170 | } | ||
1171 | schoenebeck | 2 | |
1172 | persson | 365 | // reload from disk to local buffer if needed |
1173 | if (remainingsamples && remainingbytes < WorstCaseFrameSize && pCkData->GetState() == RIFF::stream_ready) { | ||
1174 | assumedsize = GuessSize(remainingsamples); | ||
1175 | pCkData->SetPos(remainingbytes, RIFF::stream_backward); | ||
1176 | if (pCkData->RemainingBytes() < assumedsize) assumedsize = pCkData->RemainingBytes(); | ||
1177 | schoenebeck | 384 | remainingbytes = pCkData->Read(pDecompressionBuffer->pStart, assumedsize, 1); |
1178 | pSrc = (unsigned char*) pDecompressionBuffer->pStart; | ||
1179 | schoenebeck | 2 | } |
1180 | persson | 365 | } // while |
1181 | |||
1182 | schoenebeck | 2 | this->SamplePos += (SampleCount - remainingsamples); |
1183 | schoenebeck | 11 | if (this->SamplePos > this->SamplesTotal) this->SamplePos = this->SamplesTotal; |
1184 | schoenebeck | 2 | return (SampleCount - remainingsamples); |
1185 | } | ||
1186 | } | ||
1187 | |||
1188 | schoenebeck | 809 | /** @brief Write sample wave data. |
1189 | * | ||
1190 | * Writes \a SampleCount number of sample points from the buffer pointed | ||
1191 | * by \a pBuffer and increments the position within the sample. Use this | ||
1192 | * method to directly write the sample data to disk, i.e. if you don't | ||
1193 | * want or cannot load the whole sample data into RAM. | ||
1194 | * | ||
1195 | * You have to Resize() the sample to the desired size and call | ||
1196 | * File::Save() <b>before</b> using Write(). | ||
1197 | * | ||
1198 | * Note: there is currently no support for writing compressed samples. | ||
1199 | * | ||
1200 | persson | 1264 | * For 16 bit samples, the data in the source buffer should be |
1201 | * int16_t (using native endianness). For 24 bit, the buffer | ||
1202 | * should contain three bytes per sample, little-endian. | ||
1203 | * | ||
1204 | schoenebeck | 809 | * @param pBuffer - source buffer |
1205 | * @param SampleCount - number of sample points to write | ||
1206 | * @throws DLS::Exception if current sample size is too small | ||
1207 | * @throws gig::Exception if sample is compressed | ||
1208 | * @see DLS::LoadSampleData() | ||
1209 | */ | ||
1210 | unsigned long Sample::Write(void* pBuffer, unsigned long SampleCount) { | ||
1211 | if (Compressed) throw gig::Exception("There is no support for writing compressed gig samples (yet)"); | ||
1212 | persson | 1207 | |
1213 | // if this is the first write in this sample, reset the | ||
1214 | // checksum calculator | ||
1215 | persson | 1199 | if (pCkData->GetPos() == 0) { |
1216 | schoenebeck | 1381 | __resetCRC(crc); |
1217 | persson | 1199 | } |
1218 | persson | 1264 | if (GetSize() < SampleCount) throw Exception("Could not write sample data, current sample size to small"); |
1219 | unsigned long res; | ||
1220 | if (BitDepth == 24) { | ||
1221 | res = pCkData->Write(pBuffer, SampleCount * FrameSize, 1) / FrameSize; | ||
1222 | } else { // 16 bit | ||
1223 | res = Channels == 2 ? pCkData->Write(pBuffer, SampleCount << 1, 2) >> 1 | ||
1224 | : pCkData->Write(pBuffer, SampleCount, 2); | ||
1225 | } | ||
1226 | schoenebeck | 1381 | __calculateCRC((unsigned char *)pBuffer, SampleCount * FrameSize, crc); |
1227 | persson | 1199 | |
1228 | persson | 1207 | // if this is the last write, update the checksum chunk in the |
1229 | // file | ||
1230 | persson | 1199 | if (pCkData->GetPos() == pCkData->GetSize()) { |
1231 | File* pFile = static_cast<File*>(GetParent()); | ||
1232 | schoenebeck | 1381 | pFile->SetSampleChecksum(this, __encodeCRC(crc)); |
1233 | persson | 1199 | } |
1234 | return res; | ||
1235 | schoenebeck | 809 | } |
1236 | |||
1237 | schoenebeck | 384 | /** |
1238 | * Allocates a decompression buffer for streaming (compressed) samples | ||
1239 | * with Sample::Read(). If you are using more than one streaming thread | ||
1240 | * in your application you <b>HAVE</b> to create a decompression buffer | ||
1241 | * for <b>EACH</b> of your streaming threads and provide it with the | ||
1242 | * Sample::Read() call in order to avoid race conditions and crashes. | ||
1243 | * | ||
1244 | * You should free the memory occupied by the allocated buffer(s) once | ||
1245 | * you don't need one of your streaming threads anymore by calling | ||
1246 | * DestroyDecompressionBuffer(). | ||
1247 | * | ||
1248 | * @param MaxReadSize - the maximum size (in sample points) you ever | ||
1249 | * expect to read with one Read() call | ||
1250 | * @returns allocated decompression buffer | ||
1251 | * @see DestroyDecompressionBuffer() | ||
1252 | */ | ||
1253 | buffer_t Sample::CreateDecompressionBuffer(unsigned long MaxReadSize) { | ||
1254 | buffer_t result; | ||
1255 | const double worstCaseHeaderOverhead = | ||
1256 | (256.0 /*frame size*/ + 12.0 /*header*/ + 2.0 /*compression type flag (stereo)*/) / 256.0; | ||
1257 | result.Size = (unsigned long) (double(MaxReadSize) * 3.0 /*(24 Bit)*/ * 2.0 /*stereo*/ * worstCaseHeaderOverhead); | ||
1258 | result.pStart = new int8_t[result.Size]; | ||
1259 | result.NullExtensionSize = 0; | ||
1260 | return result; | ||
1261 | } | ||
1262 | |||
1263 | /** | ||
1264 | * Free decompression buffer, previously created with | ||
1265 | * CreateDecompressionBuffer(). | ||
1266 | * | ||
1267 | * @param DecompressionBuffer - previously allocated decompression | ||
1268 | * buffer to free | ||
1269 | */ | ||
1270 | void Sample::DestroyDecompressionBuffer(buffer_t& DecompressionBuffer) { | ||
1271 | if (DecompressionBuffer.Size && DecompressionBuffer.pStart) { | ||
1272 | delete[] (int8_t*) DecompressionBuffer.pStart; | ||
1273 | DecompressionBuffer.pStart = NULL; | ||
1274 | DecompressionBuffer.Size = 0; | ||
1275 | DecompressionBuffer.NullExtensionSize = 0; | ||
1276 | } | ||
1277 | } | ||
1278 | |||
1279 | schoenebeck | 930 | /** |
1280 | * Returns pointer to the Group this Sample belongs to. In the .gig | ||
1281 | * format a sample always belongs to one group. If it wasn't explicitly | ||
1282 | * assigned to a certain group, it will be automatically assigned to a | ||
1283 | * default group. | ||
1284 | * | ||
1285 | * @returns Sample's Group (never NULL) | ||
1286 | */ | ||
1287 | Group* Sample::GetGroup() const { | ||
1288 | return pGroup; | ||
1289 | } | ||
1290 | |||
1291 | schoenebeck | 2 | Sample::~Sample() { |
1292 | Instances--; | ||
1293 | schoenebeck | 384 | if (!Instances && InternalDecompressionBuffer.Size) { |
1294 | delete[] (unsigned char*) InternalDecompressionBuffer.pStart; | ||
1295 | InternalDecompressionBuffer.pStart = NULL; | ||
1296 | InternalDecompressionBuffer.Size = 0; | ||
1297 | schoenebeck | 355 | } |
1298 | schoenebeck | 2 | if (FrameTable) delete[] FrameTable; |
1299 | if (RAMCache.pStart) delete[] (int8_t*) RAMCache.pStart; | ||
1300 | } | ||
1301 | |||
1302 | |||
1303 | |||
1304 | // *************** DimensionRegion *************** | ||
1305 | // * | ||
1306 | |||
1307 | schoenebeck | 16 | uint DimensionRegion::Instances = 0; |
1308 | DimensionRegion::VelocityTableMap* DimensionRegion::pVelocityTables = NULL; | ||
1309 | |||
1310 | schoenebeck | 1316 | DimensionRegion::DimensionRegion(Region* pParent, RIFF::List* _3ewl) : DLS::Sampler(_3ewl) { |
1311 | schoenebeck | 16 | Instances++; |
1312 | |||
1313 | schoenebeck | 823 | pSample = NULL; |
1314 | schoenebeck | 1316 | pRegion = pParent; |
1315 | schoenebeck | 823 | |
1316 | persson | 1247 | if (_3ewl->GetSubChunk(CHUNK_ID_WSMP)) memcpy(&Crossfade, &SamplerOptions, 4); |
1317 | else memset(&Crossfade, 0, 4); | ||
1318 | |||
1319 | schoenebeck | 16 | if (!pVelocityTables) pVelocityTables = new VelocityTableMap; |
1320 | schoenebeck | 2 | |
1321 | RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); | ||
1322 | schoenebeck | 809 | if (_3ewa) { // if '3ewa' chunk exists |
1323 | persson | 918 | _3ewa->ReadInt32(); // unknown, always == chunk size ? |
1324 | schoenebeck | 809 | LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
1325 | EG3Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1326 | _3ewa->ReadInt16(); // unknown | ||
1327 | LFO1InternalDepth = _3ewa->ReadUint16(); | ||
1328 | _3ewa->ReadInt16(); // unknown | ||
1329 | LFO3InternalDepth = _3ewa->ReadInt16(); | ||
1330 | _3ewa->ReadInt16(); // unknown | ||
1331 | LFO1ControlDepth = _3ewa->ReadUint16(); | ||
1332 | _3ewa->ReadInt16(); // unknown | ||
1333 | LFO3ControlDepth = _3ewa->ReadInt16(); | ||
1334 | EG1Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1335 | EG1Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1336 | _3ewa->ReadInt16(); // unknown | ||
1337 | EG1Sustain = _3ewa->ReadUint16(); | ||
1338 | EG1Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1339 | EG1Controller = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); | ||
1340 | uint8_t eg1ctrloptions = _3ewa->ReadUint8(); | ||
1341 | EG1ControllerInvert = eg1ctrloptions & 0x01; | ||
1342 | EG1ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg1ctrloptions); | ||
1343 | EG1ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg1ctrloptions); | ||
1344 | EG1ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg1ctrloptions); | ||
1345 | EG2Controller = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); | ||
1346 | uint8_t eg2ctrloptions = _3ewa->ReadUint8(); | ||
1347 | EG2ControllerInvert = eg2ctrloptions & 0x01; | ||
1348 | EG2ControllerAttackInfluence = GIG_EG_CTR_ATTACK_INFLUENCE_EXTRACT(eg2ctrloptions); | ||
1349 | EG2ControllerDecayInfluence = GIG_EG_CTR_DECAY_INFLUENCE_EXTRACT(eg2ctrloptions); | ||
1350 | EG2ControllerReleaseInfluence = GIG_EG_CTR_RELEASE_INFLUENCE_EXTRACT(eg2ctrloptions); | ||
1351 | LFO1Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1352 | EG2Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1353 | EG2Decay1 = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1354 | _3ewa->ReadInt16(); // unknown | ||
1355 | EG2Sustain = _3ewa->ReadUint16(); | ||
1356 | EG2Release = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1357 | _3ewa->ReadInt16(); // unknown | ||
1358 | LFO2ControlDepth = _3ewa->ReadUint16(); | ||
1359 | LFO2Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); | ||
1360 | _3ewa->ReadInt16(); // unknown | ||
1361 | LFO2InternalDepth = _3ewa->ReadUint16(); | ||
1362 | int32_t eg1decay2 = _3ewa->ReadInt32(); | ||
1363 | EG1Decay2 = (double) GIG_EXP_DECODE(eg1decay2); | ||
1364 | EG1InfiniteSustain = (eg1decay2 == 0x7fffffff); | ||
1365 | _3ewa->ReadInt16(); // unknown | ||
1366 | EG1PreAttack = _3ewa->ReadUint16(); | ||
1367 | int32_t eg2decay2 = _3ewa->ReadInt32(); | ||
1368 | EG2Decay2 = (double) GIG_EXP_DECODE(eg2decay2); | ||
1369 | EG2InfiniteSustain = (eg2decay2 == 0x7fffffff); | ||
1370 | _3ewa->ReadInt16(); // unknown | ||
1371 | EG2PreAttack = _3ewa->ReadUint16(); | ||
1372 | uint8_t velocityresponse = _3ewa->ReadUint8(); | ||
1373 | if (velocityresponse < 5) { | ||
1374 | VelocityResponseCurve = curve_type_nonlinear; | ||
1375 | VelocityResponseDepth = velocityresponse; | ||
1376 | } else if (velocityresponse < 10) { | ||
1377 | VelocityResponseCurve = curve_type_linear; | ||
1378 | VelocityResponseDepth = velocityresponse - 5; | ||
1379 | } else if (velocityresponse < 15) { | ||
1380 | VelocityResponseCurve = curve_type_special; | ||
1381 | VelocityResponseDepth = velocityresponse - 10; | ||
1382 | } else { | ||
1383 | VelocityResponseCurve = curve_type_unknown; | ||
1384 | VelocityResponseDepth = 0; | ||
1385 | } | ||
1386 | uint8_t releasevelocityresponse = _3ewa->ReadUint8(); | ||
1387 | if (releasevelocityresponse < 5) { | ||
1388 | ReleaseVelocityResponseCurve = curve_type_nonlinear; | ||
1389 | ReleaseVelocityResponseDepth = releasevelocityresponse; | ||
1390 | } else if (releasevelocityresponse < 10) { | ||
1391 | ReleaseVelocityResponseCurve = curve_type_linear; | ||
1392 | ReleaseVelocityResponseDepth = releasevelocityresponse - 5; | ||
1393 | } else if (releasevelocityresponse < 15) { | ||
1394 | ReleaseVelocityResponseCurve = curve_type_special; | ||
1395 | ReleaseVelocityResponseDepth = releasevelocityresponse - 10; | ||
1396 | } else { | ||
1397 | ReleaseVelocityResponseCurve = curve_type_unknown; | ||
1398 | ReleaseVelocityResponseDepth = 0; | ||
1399 | } | ||
1400 | VelocityResponseCurveScaling = _3ewa->ReadUint8(); | ||
1401 | AttenuationControllerThreshold = _3ewa->ReadInt8(); | ||
1402 | _3ewa->ReadInt32(); // unknown | ||
1403 | SampleStartOffset = (uint16_t) _3ewa->ReadInt16(); | ||
1404 | _3ewa->ReadInt16(); // unknown | ||
1405 | uint8_t pitchTrackDimensionBypass = _3ewa->ReadInt8(); | ||
1406 | PitchTrack = GIG_PITCH_TRACK_EXTRACT(pitchTrackDimensionBypass); | ||
1407 | if (pitchTrackDimensionBypass & 0x10) DimensionBypass = dim_bypass_ctrl_94; | ||
1408 | else if (pitchTrackDimensionBypass & 0x20) DimensionBypass = dim_bypass_ctrl_95; | ||
1409 | else DimensionBypass = dim_bypass_ctrl_none; | ||
1410 | uint8_t pan = _3ewa->ReadUint8(); | ||
1411 | Pan = (pan < 64) ? pan : -((int)pan - 63); // signed 7 bit -> signed 8 bit | ||
1412 | SelfMask = _3ewa->ReadInt8() & 0x01; | ||
1413 | _3ewa->ReadInt8(); // unknown | ||
1414 | uint8_t lfo3ctrl = _3ewa->ReadUint8(); | ||
1415 | LFO3Controller = static_cast<lfo3_ctrl_t>(lfo3ctrl & 0x07); // lower 3 bits | ||
1416 | LFO3Sync = lfo3ctrl & 0x20; // bit 5 | ||
1417 | InvertAttenuationController = lfo3ctrl & 0x80; // bit 7 | ||
1418 | AttenuationController = DecodeLeverageController(static_cast<_lev_ctrl_t>(_3ewa->ReadUint8())); | ||
1419 | uint8_t lfo2ctrl = _3ewa->ReadUint8(); | ||
1420 | LFO2Controller = static_cast<lfo2_ctrl_t>(lfo2ctrl & 0x07); // lower 3 bits | ||
1421 | LFO2FlipPhase = lfo2ctrl & 0x80; // bit 7 | ||
1422 | LFO2Sync = lfo2ctrl & 0x20; // bit 5 | ||
1423 | bool extResonanceCtrl = lfo2ctrl & 0x40; // bit 6 | ||
1424 | uint8_t lfo1ctrl = _3ewa->ReadUint8(); | ||
1425 | LFO1Controller = static_cast<lfo1_ctrl_t>(lfo1ctrl & 0x07); // lower 3 bits | ||
1426 | LFO1FlipPhase = lfo1ctrl & 0x80; // bit 7 | ||
1427 | LFO1Sync = lfo1ctrl & 0x40; // bit 6 | ||
1428 | VCFResonanceController = (extResonanceCtrl) ? static_cast<vcf_res_ctrl_t>(GIG_VCF_RESONANCE_CTRL_EXTRACT(lfo1ctrl)) | ||
1429 | : vcf_res_ctrl_none; | ||
1430 | uint16_t eg3depth = _3ewa->ReadUint16(); | ||
1431 | EG3Depth = (eg3depth <= 1200) ? eg3depth /* positives */ | ||
1432 | : (-1) * (int16_t) ((eg3depth ^ 0xffff) + 1); /* binary complementary for negatives */ | ||
1433 | _3ewa->ReadInt16(); // unknown | ||
1434 | ChannelOffset = _3ewa->ReadUint8() / 4; | ||
1435 | uint8_t regoptions = _3ewa->ReadUint8(); | ||
1436 | MSDecode = regoptions & 0x01; // bit 0 | ||
1437 | SustainDefeat = regoptions & 0x02; // bit 1 | ||
1438 | _3ewa->ReadInt16(); // unknown | ||
1439 | VelocityUpperLimit = _3ewa->ReadInt8(); | ||
1440 | _3ewa->ReadInt8(); // unknown | ||
1441 | _3ewa->ReadInt16(); // unknown | ||
1442 | ReleaseTriggerDecay = _3ewa->ReadUint8(); // release trigger decay | ||
1443 | _3ewa->ReadInt8(); // unknown | ||
1444 | _3ewa->ReadInt8(); // unknown | ||
1445 | EG1Hold = _3ewa->ReadUint8() & 0x80; // bit 7 | ||
1446 | uint8_t vcfcutoff = _3ewa->ReadUint8(); | ||
1447 | VCFEnabled = vcfcutoff & 0x80; // bit 7 | ||
1448 | VCFCutoff = vcfcutoff & 0x7f; // lower 7 bits | ||
1449 | VCFCutoffController = static_cast<vcf_cutoff_ctrl_t>(_3ewa->ReadUint8()); | ||
1450 | uint8_t vcfvelscale = _3ewa->ReadUint8(); | ||
1451 | VCFCutoffControllerInvert = vcfvelscale & 0x80; // bit 7 | ||
1452 | VCFVelocityScale = vcfvelscale & 0x7f; // lower 7 bits | ||
1453 | _3ewa->ReadInt8(); // unknown | ||
1454 | uint8_t vcfresonance = _3ewa->ReadUint8(); | ||
1455 | VCFResonance = vcfresonance & 0x7f; // lower 7 bits | ||
1456 | VCFResonanceDynamic = !(vcfresonance & 0x80); // bit 7 | ||
1457 | uint8_t vcfbreakpoint = _3ewa->ReadUint8(); | ||
1458 | VCFKeyboardTracking = vcfbreakpoint & 0x80; // bit 7 | ||
1459 | VCFKeyboardTrackingBreakpoint = vcfbreakpoint & 0x7f; // lower 7 bits | ||
1460 | uint8_t vcfvelocity = _3ewa->ReadUint8(); | ||
1461 | VCFVelocityDynamicRange = vcfvelocity % 5; | ||
1462 | VCFVelocityCurve = static_cast<curve_type_t>(vcfvelocity / 5); | ||
1463 | VCFType = static_cast<vcf_type_t>(_3ewa->ReadUint8()); | ||
1464 | if (VCFType == vcf_type_lowpass) { | ||
1465 | if (lfo3ctrl & 0x40) // bit 6 | ||
1466 | VCFType = vcf_type_lowpassturbo; | ||
1467 | } | ||
1468 | persson | 1070 | if (_3ewa->RemainingBytes() >= 8) { |
1469 | _3ewa->Read(DimensionUpperLimits, 1, 8); | ||
1470 | } else { | ||
1471 | memset(DimensionUpperLimits, 0, 8); | ||
1472 | } | ||
1473 | schoenebeck | 809 | } else { // '3ewa' chunk does not exist yet |
1474 | // use default values | ||
1475 | LFO3Frequency = 1.0; | ||
1476 | EG3Attack = 0.0; | ||
1477 | LFO1InternalDepth = 0; | ||
1478 | LFO3InternalDepth = 0; | ||
1479 | LFO1ControlDepth = 0; | ||
1480 | LFO3ControlDepth = 0; | ||
1481 | EG1Attack = 0.0; | ||
1482 | persson | 1218 | EG1Decay1 = 0.005; |
1483 | EG1Sustain = 1000; | ||
1484 | EG1Release = 0.3; | ||
1485 | schoenebeck | 809 | EG1Controller.type = eg1_ctrl_t::type_none; |
1486 | EG1Controller.controller_number = 0; | ||
1487 | EG1ControllerInvert = false; | ||
1488 | EG1ControllerAttackInfluence = 0; | ||
1489 | EG1ControllerDecayInfluence = 0; | ||
1490 | EG1ControllerReleaseInfluence = 0; | ||
1491 | EG2Controller.type = eg2_ctrl_t::type_none; | ||
1492 | EG2Controller.controller_number = 0; | ||
1493 | EG2ControllerInvert = false; | ||
1494 | EG2ControllerAttackInfluence = 0; | ||
1495 | EG2ControllerDecayInfluence = 0; | ||
1496 | EG2ControllerReleaseInfluence = 0; | ||
1497 | LFO1Frequency = 1.0; | ||
1498 | EG2Attack = 0.0; | ||
1499 | persson | 1218 | EG2Decay1 = 0.005; |
1500 | EG2Sustain = 1000; | ||
1501 | EG2Release = 0.3; | ||
1502 | schoenebeck | 809 | LFO2ControlDepth = 0; |
1503 | LFO2Frequency = 1.0; | ||
1504 | LFO2InternalDepth = 0; | ||
1505 | EG1Decay2 = 0.0; | ||
1506 | persson | 1218 | EG1InfiniteSustain = true; |
1507 | EG1PreAttack = 0; | ||
1508 | schoenebeck | 809 | EG2Decay2 = 0.0; |
1509 | persson | 1218 | EG2InfiniteSustain = true; |
1510 | EG2PreAttack = 0; | ||
1511 | schoenebeck | 809 | VelocityResponseCurve = curve_type_nonlinear; |
1512 | VelocityResponseDepth = 3; | ||
1513 | ReleaseVelocityResponseCurve = curve_type_nonlinear; | ||
1514 | ReleaseVelocityResponseDepth = 3; | ||
1515 | VelocityResponseCurveScaling = 32; | ||
1516 | AttenuationControllerThreshold = 0; | ||
1517 | SampleStartOffset = 0; | ||
1518 | PitchTrack = true; | ||
1519 | DimensionBypass = dim_bypass_ctrl_none; | ||
1520 | Pan = 0; | ||
1521 | SelfMask = true; | ||
1522 | LFO3Controller = lfo3_ctrl_modwheel; | ||
1523 | LFO3Sync = false; | ||
1524 | InvertAttenuationController = false; | ||
1525 | AttenuationController.type = attenuation_ctrl_t::type_none; | ||
1526 | AttenuationController.controller_number = 0; | ||
1527 | LFO2Controller = lfo2_ctrl_internal; | ||
1528 | LFO2FlipPhase = false; | ||
1529 | LFO2Sync = false; | ||
1530 | LFO1Controller = lfo1_ctrl_internal; | ||
1531 | LFO1FlipPhase = false; | ||
1532 | LFO1Sync = false; | ||
1533 | VCFResonanceController = vcf_res_ctrl_none; | ||
1534 | EG3Depth = 0; | ||
1535 | ChannelOffset = 0; | ||
1536 | MSDecode = false; | ||
1537 | SustainDefeat = false; | ||
1538 | VelocityUpperLimit = 0; | ||
1539 | ReleaseTriggerDecay = 0; | ||
1540 | EG1Hold = false; | ||
1541 | VCFEnabled = false; | ||
1542 | VCFCutoff = 0; | ||
1543 | VCFCutoffController = vcf_cutoff_ctrl_none; | ||
1544 | VCFCutoffControllerInvert = false; | ||
1545 | VCFVelocityScale = 0; | ||
1546 | VCFResonance = 0; | ||
1547 | VCFResonanceDynamic = false; | ||
1548 | VCFKeyboardTracking = false; | ||
1549 | VCFKeyboardTrackingBreakpoint = 0; | ||
1550 | VCFVelocityDynamicRange = 0x04; | ||
1551 | VCFVelocityCurve = curve_type_linear; | ||
1552 | VCFType = vcf_type_lowpass; | ||
1553 | persson | 1247 | memset(DimensionUpperLimits, 127, 8); |
1554 | schoenebeck | 2 | } |
1555 | schoenebeck | 16 | |
1556 | persson | 613 | pVelocityAttenuationTable = GetVelocityTable(VelocityResponseCurve, |
1557 | VelocityResponseDepth, | ||
1558 | VelocityResponseCurveScaling); | ||
1559 | |||
1560 | schoenebeck | 1358 | pVelocityReleaseTable = GetReleaseVelocityTable( |
1561 | ReleaseVelocityResponseCurve, | ||
1562 | ReleaseVelocityResponseDepth | ||
1563 | ); | ||
1564 | persson | 613 | |
1565 | schoenebeck | 1358 | pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, |
1566 | VCFVelocityDynamicRange, | ||
1567 | VCFVelocityScale, | ||
1568 | VCFCutoffController); | ||
1569 | persson | 613 | |
1570 | SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); | ||
1571 | persson | 858 | VelocityTable = 0; |
1572 | persson | 613 | } |
1573 | |||
1574 | persson | 1301 | /* |
1575 | * Constructs a DimensionRegion by copying all parameters from | ||
1576 | * another DimensionRegion | ||
1577 | */ | ||
1578 | DimensionRegion::DimensionRegion(RIFF::List* _3ewl, const DimensionRegion& src) : DLS::Sampler(_3ewl) { | ||
1579 | Instances++; | ||
1580 | *this = src; // default memberwise shallow copy of all parameters | ||
1581 | pParentList = _3ewl; // restore the chunk pointer | ||
1582 | |||
1583 | // deep copy of owned structures | ||
1584 | if (src.VelocityTable) { | ||
1585 | VelocityTable = new uint8_t[128]; | ||
1586 | for (int k = 0 ; k < 128 ; k++) | ||
1587 | VelocityTable[k] = src.VelocityTable[k]; | ||
1588 | } | ||
1589 | if (src.pSampleLoops) { | ||
1590 | pSampleLoops = new DLS::sample_loop_t[src.SampleLoops]; | ||
1591 | for (int k = 0 ; k < src.SampleLoops ; k++) | ||
1592 | pSampleLoops[k] = src.pSampleLoops[k]; | ||
1593 | } | ||
1594 | } | ||
1595 | |||
1596 | schoenebeck | 809 | /** |
1597 | schoenebeck | 1358 | * Updates the respective member variable and updates @c SampleAttenuation |
1598 | * which depends on this value. | ||
1599 | */ | ||
1600 | void DimensionRegion::SetGain(int32_t gain) { | ||
1601 | DLS::Sampler::SetGain(gain); | ||
1602 | SampleAttenuation = pow(10.0, -Gain / (20.0 * 655360)); | ||
1603 | } | ||
1604 | |||
1605 | /** | ||
1606 | schoenebeck | 809 | * Apply dimension region settings to the respective RIFF chunks. You |
1607 | * have to call File::Save() to make changes persistent. | ||
1608 | * | ||
1609 | * Usually there is absolutely no need to call this method explicitly. | ||
1610 | * It will be called automatically when File::Save() was called. | ||
1611 | */ | ||
1612 | void DimensionRegion::UpdateChunks() { | ||
1613 | // first update base class's chunk | ||
1614 | DLS::Sampler::UpdateChunks(); | ||
1615 | |||
1616 | persson | 1247 | RIFF::Chunk* wsmp = pParentList->GetSubChunk(CHUNK_ID_WSMP); |
1617 | uint8_t* pData = (uint8_t*) wsmp->LoadChunkData(); | ||
1618 | pData[12] = Crossfade.in_start; | ||
1619 | pData[13] = Crossfade.in_end; | ||
1620 | pData[14] = Crossfade.out_start; | ||
1621 | pData[15] = Crossfade.out_end; | ||
1622 | |||
1623 | schoenebeck | 809 | // make sure '3ewa' chunk exists |
1624 | RIFF::Chunk* _3ewa = pParentList->GetSubChunk(CHUNK_ID_3EWA); | ||
1625 | persson | 1317 | if (!_3ewa) { |
1626 | File* pFile = (File*) GetParent()->GetParent()->GetParent(); | ||
1627 | bool version3 = pFile->pVersion && pFile->pVersion->major == 3; | ||
1628 | _3ewa = pParentList->AddSubChunk(CHUNK_ID_3EWA, version3 ? 148 : 140); | ||
1629 | persson | 1264 | } |
1630 | persson | 1247 | pData = (uint8_t*) _3ewa->LoadChunkData(); |
1631 | schoenebeck | 809 | |
1632 | // update '3ewa' chunk with DimensionRegion's current settings | ||
1633 | |||
1634 | persson | 1182 | const uint32_t chunksize = _3ewa->GetNewSize(); |
1635 | persson | 1179 | store32(&pData[0], chunksize); // unknown, always chunk size? |
1636 | schoenebeck | 809 | |
1637 | const int32_t lfo3freq = (int32_t) GIG_EXP_ENCODE(LFO3Frequency); | ||
1638 | persson | 1179 | store32(&pData[4], lfo3freq); |
1639 | schoenebeck | 809 | |
1640 | const int32_t eg3attack = (int32_t) GIG_EXP_ENCODE(EG3Attack); | ||
1641 | persson | 1179 | store32(&pData[8], eg3attack); |
1642 | schoenebeck | 809 | |
1643 | // next 2 bytes unknown | ||
1644 | |||
1645 | persson | 1179 | store16(&pData[14], LFO1InternalDepth); |
1646 | schoenebeck | 809 | |
1647 | // next 2 bytes unknown | ||
1648 | |||
1649 | persson | 1179 | store16(&pData[18], LFO3InternalDepth); |
1650 | schoenebeck | 809 | |
1651 | // next 2 bytes unknown | ||
1652 | |||
1653 | persson | 1179 | store16(&pData[22], LFO1ControlDepth); |
1654 | schoenebeck | 809 | |
1655 | // next 2 bytes unknown | ||
1656 | |||
1657 | persson | 1179 | store16(&pData[26], LFO3ControlDepth); |
1658 | schoenebeck | 809 | |
1659 | const int32_t eg1attack = (int32_t) GIG_EXP_ENCODE(EG1Attack); | ||
1660 | persson | 1179 | store32(&pData[28], eg1attack); |
1661 | schoenebeck | 809 | |
1662 | const int32_t eg1decay1 = (int32_t) GIG_EXP_ENCODE(EG1Decay1); | ||
1663 | persson | 1179 | store32(&pData[32], eg1decay1); |
1664 | schoenebeck | 809 | |
1665 | // next 2 bytes unknown | ||
1666 | |||
1667 | persson | 1179 | store16(&pData[38], EG1Sustain); |
1668 | schoenebeck | 809 | |
1669 | const int32_t eg1release = (int32_t) GIG_EXP_ENCODE(EG1Release); | ||
1670 | persson | 1179 | store32(&pData[40], eg1release); |
1671 | schoenebeck | 809 | |
1672 | const uint8_t eg1ctl = (uint8_t) EncodeLeverageController(EG1Controller); | ||
1673 | persson | 1179 | pData[44] = eg1ctl; |
1674 | schoenebeck | 809 | |
1675 | const uint8_t eg1ctrloptions = | ||
1676 | persson | 1266 | (EG1ControllerInvert ? 0x01 : 0x00) | |
1677 | schoenebeck | 809 | GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG1ControllerAttackInfluence) | |
1678 | GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG1ControllerDecayInfluence) | | ||
1679 | GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG1ControllerReleaseInfluence); | ||
1680 | persson | 1179 | pData[45] = eg1ctrloptions; |
1681 | schoenebeck | 809 | |
1682 | const uint8_t eg2ctl = (uint8_t) EncodeLeverageController(EG2Controller); | ||
1683 | persson | 1179 | pData[46] = eg2ctl; |
1684 | schoenebeck | 809 | |
1685 | const uint8_t eg2ctrloptions = | ||
1686 | persson | 1266 | (EG2ControllerInvert ? 0x01 : 0x00) | |
1687 | schoenebeck | 809 | GIG_EG_CTR_ATTACK_INFLUENCE_ENCODE(EG2ControllerAttackInfluence) | |
1688 | GIG_EG_CTR_DECAY_INFLUENCE_ENCODE(EG2ControllerDecayInfluence) | | ||
1689 | GIG_EG_CTR_RELEASE_INFLUENCE_ENCODE(EG2ControllerReleaseInfluence); | ||
1690 | persson | 1179 | pData[47] = eg2ctrloptions; |
1691 | schoenebeck | 809 | |
1692 | const int32_t lfo1freq = (int32_t) GIG_EXP_ENCODE(LFO1Frequency); | ||
1693 | persson | 1179 | store32(&pData[48], lfo1freq); |
1694 | schoenebeck | 809 | |
1695 | const int32_t eg2attack = (int32_t) GIG_EXP_ENCODE(EG2Attack); | ||
1696 | persson | 1179 | store32(&pData[52], eg2attack); |
1697 | schoenebeck | 809 | |
1698 | const int32_t eg2decay1 = (int32_t) GIG_EXP_ENCODE(EG2Decay1); | ||
1699 | persson | 1179 | store32(&pData[56], eg2decay1); |
1700 | schoenebeck | 809 | |
1701 | // next 2 bytes unknown | ||
1702 | |||
1703 | persson | 1179 | store16(&pData[62], EG2Sustain); |
1704 | schoenebeck | 809 | |
1705 | const int32_t eg2release = (int32_t) GIG_EXP_ENCODE(EG2Release); | ||
1706 | persson | 1179 | store32(&pData[64], eg2release); |
1707 | schoenebeck | 809 | |
1708 | // next 2 bytes unknown | ||
1709 | |||
1710 | persson | 1179 | store16(&pData[70], LFO2ControlDepth); |
1711 | schoenebeck | 809 | |
1712 | const int32_t lfo2freq = (int32_t) GIG_EXP_ENCODE(LFO2Frequency); | ||
1713 | persson | 1179 | store32(&pData[72], lfo2freq); |
1714 | schoenebeck | 809 | |
1715 | // next 2 bytes unknown | ||
1716 | |||
1717 | persson | 1179 | store16(&pData[78], LFO2InternalDepth); |
1718 | schoenebeck | 809 | |
1719 | const int32_t eg1decay2 = (int32_t) (EG1InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG1Decay2); | ||
1720 | persson | 1179 | store32(&pData[80], eg1decay2); |
1721 | schoenebeck | 809 | |
1722 | // next 2 bytes unknown | ||
1723 | |||
1724 | persson | 1179 | store16(&pData[86], EG1PreAttack); |
1725 | schoenebeck | 809 | |
1726 | const int32_t eg2decay2 = (int32_t) (EG2InfiniteSustain) ? 0x7fffffff : (int32_t) GIG_EXP_ENCODE(EG2Decay2); | ||
1727 | persson | 1179 | store32(&pData[88], eg2decay2); |
1728 | schoenebeck | 809 | |
1729 | // next 2 bytes unknown | ||
1730 | |||
1731 | persson | 1179 | store16(&pData[94], EG2PreAttack); |
1732 | schoenebeck | 809 | |
1733 | { | ||
1734 | if (VelocityResponseDepth > 4) throw Exception("VelocityResponseDepth must be between 0 and 4"); | ||
1735 | uint8_t velocityresponse = VelocityResponseDepth; | ||
1736 | switch (VelocityResponseCurve) { | ||
1737 | case curve_type_nonlinear: | ||
1738 | break; | ||
1739 | case curve_type_linear: | ||
1740 | velocityresponse += 5; | ||
1741 | break; | ||
1742 | case curve_type_special: | ||
1743 | velocityresponse += 10; | ||
1744 | break; | ||
1745 | case curve_type_unknown: | ||
1746 | default: | ||
1747 | throw Exception("Could not update DimensionRegion's chunk, unknown VelocityResponseCurve selected"); | ||
1748 | } | ||
1749 | persson | 1179 | pData[96] = velocityresponse; |
1750 | schoenebeck | 809 | } |
1751 | |||
1752 | { | ||
1753 | if (ReleaseVelocityResponseDepth > 4) throw Exception("ReleaseVelocityResponseDepth must be between 0 and 4"); | ||
1754 | uint8_t releasevelocityresponse = ReleaseVelocityResponseDepth; | ||
1755 | switch (ReleaseVelocityResponseCurve) { | ||
1756 | case curve_type_nonlinear: | ||
1757 | break; | ||
1758 | case curve_type_linear: | ||
1759 | releasevelocityresponse += 5; | ||
1760 | break; | ||
1761 | case curve_type_special: | ||
1762 | releasevelocityresponse += 10; | ||
1763 | break; | ||
1764 | case curve_type_unknown: | ||
1765 | default: | ||
1766 | throw Exception("Could not update DimensionRegion's chunk, unknown ReleaseVelocityResponseCurve selected"); | ||
1767 | } | ||
1768 | persson | 1179 | pData[97] = releasevelocityresponse; |
1769 | schoenebeck | 809 | } |
1770 | |||
1771 | persson | 1179 | pData[98] = VelocityResponseCurveScaling; |
1772 | schoenebeck | 809 | |
1773 | persson | 1179 | pData[99] = AttenuationControllerThreshold; |
1774 | schoenebeck | 809 | |
1775 | // next 4 bytes unknown | ||
1776 | |||
1777 | persson | 1179 | store16(&pData[104], SampleStartOffset); |
1778 | schoenebeck | 809 | |
1779 | // next 2 bytes unknown | ||
1780 | |||
1781 | { | ||
1782 | uint8_t pitchTrackDimensionBypass = GIG_PITCH_TRACK_ENCODE(PitchTrack); | ||
1783 | switch (DimensionBypass) { | ||
1784 | case dim_bypass_ctrl_94: | ||
1785 | pitchTrackDimensionBypass |= 0x10; | ||
1786 | break; | ||
1787 | case dim_bypass_ctrl_95: | ||
1788 | pitchTrackDimensionBypass |= 0x20; | ||
1789 | break; | ||
1790 | case dim_bypass_ctrl_none: | ||
1791 | //FIXME: should we set anything here? | ||
1792 | break; | ||
1793 | default: | ||
1794 | throw Exception("Could not update DimensionRegion's chunk, unknown DimensionBypass selected"); | ||
1795 | } | ||
1796 | persson | 1179 | pData[108] = pitchTrackDimensionBypass; |
1797 | schoenebeck | 809 | } |
1798 | |||
1799 | const uint8_t pan = (Pan >= 0) ? Pan : ((-Pan) + 63); // signed 8 bit -> signed 7 bit | ||
1800 | persson | 1179 | pData[109] = pan; |
1801 | schoenebeck | 809 | |
1802 | const uint8_t selfmask = (SelfMask) ? 0x01 : 0x00; | ||
1803 | persson | 1179 | pData[110] = selfmask; |
1804 | schoenebeck | 809 | |
1805 | // next byte unknown | ||
1806 | |||
1807 | { | ||
1808 | uint8_t lfo3ctrl = LFO3Controller & 0x07; // lower 3 bits | ||
1809 | if (LFO3Sync) lfo3ctrl |= 0x20; // bit 5 | ||
1810 | if (InvertAttenuationController) lfo3ctrl |= 0x80; // bit 7 | ||
1811 | if (VCFType == vcf_type_lowpassturbo) lfo3ctrl |= 0x40; // bit 6 | ||
1812 | persson | 1179 | pData[112] = lfo3ctrl; |
1813 | schoenebeck | 809 | } |
1814 | |||
1815 | const uint8_t attenctl = EncodeLeverageController(AttenuationController); | ||
1816 | persson | 1179 | pData[113] = attenctl; |
1817 | schoenebeck | 809 | |
1818 | { | ||
1819 | uint8_t lfo2ctrl = LFO2Controller & 0x07; // lower 3 bits | ||
1820 | if (LFO2FlipPhase) lfo2ctrl |= 0x80; // bit 7 | ||
1821 | if (LFO2Sync) lfo2ctrl |= 0x20; // bit 5 | ||
1822 | if (VCFResonanceController != vcf_res_ctrl_none) lfo2ctrl |= 0x40; // bit 6 | ||
1823 | persson | 1179 | pData[114] = lfo2ctrl; |
1824 | schoenebeck | 809 | } |
1825 | |||
1826 | { | ||
1827 | uint8_t lfo1ctrl = LFO1Controller & 0x07; // lower 3 bits | ||
1828 | if (LFO1FlipPhase) lfo1ctrl |= 0x80; // bit 7 | ||
1829 | if (LFO1Sync) lfo1ctrl |= 0x40; // bit 6 | ||
1830 | if (VCFResonanceController != vcf_res_ctrl_none) | ||
1831 | lfo1ctrl |= GIG_VCF_RESONANCE_CTRL_ENCODE(VCFResonanceController); | ||
1832 | persson | 1179 | pData[115] = lfo1ctrl; |
1833 | schoenebeck | 809 | } |
1834 | |||
1835 | const uint16_t eg3depth = (EG3Depth >= 0) ? EG3Depth | ||
1836 | : uint16_t(((-EG3Depth) - 1) ^ 0xffff); /* binary complementary for negatives */ | ||
1837 | persson | 1179 | pData[116] = eg3depth; |
1838 | schoenebeck | 809 | |
1839 | // next 2 bytes unknown | ||
1840 | |||
1841 | const uint8_t channeloffset = ChannelOffset * 4; | ||
1842 | persson | 1179 | pData[120] = channeloffset; |
1843 | schoenebeck | 809 | |
1844 | { | ||
1845 | uint8_t regoptions = 0; | ||
1846 | if (MSDecode) regoptions |= 0x01; // bit 0 | ||
1847 | if (SustainDefeat) regoptions |= 0x02; // bit 1 | ||
1848 | persson | 1179 | pData[121] = regoptions; |
1849 | schoenebeck | 809 | } |
1850 | |||
1851 | // next 2 bytes unknown | ||
1852 | |||
1853 | persson | 1179 | pData[124] = VelocityUpperLimit; |
1854 | schoenebeck | 809 | |
1855 | // next 3 bytes unknown | ||
1856 | |||
1857 | persson | 1179 | pData[128] = ReleaseTriggerDecay; |
1858 | schoenebeck | 809 | |
1859 | // next 2 bytes unknown | ||
1860 | |||
1861 | const uint8_t eg1hold = (EG1Hold) ? 0x80 : 0x00; // bit 7 | ||
1862 | persson | 1179 | pData[131] = eg1hold; |
1863 | schoenebeck | 809 | |
1864 | persson | 1266 | const uint8_t vcfcutoff = (VCFEnabled ? 0x80 : 0x00) | /* bit 7 */ |
1865 | persson | 918 | (VCFCutoff & 0x7f); /* lower 7 bits */ |
1866 | persson | 1179 | pData[132] = vcfcutoff; |
1867 | schoenebeck | 809 | |
1868 | persson | 1179 | pData[133] = VCFCutoffController; |
1869 | schoenebeck | 809 | |
1870 | persson | 1266 | const uint8_t vcfvelscale = (VCFCutoffControllerInvert ? 0x80 : 0x00) | /* bit 7 */ |
1871 | persson | 918 | (VCFVelocityScale & 0x7f); /* lower 7 bits */ |
1872 | persson | 1179 | pData[134] = vcfvelscale; |
1873 | schoenebeck | 809 | |
1874 | // next byte unknown | ||
1875 | |||
1876 | persson | 1266 | const uint8_t vcfresonance = (VCFResonanceDynamic ? 0x00 : 0x80) | /* bit 7 */ |
1877 | persson | 918 | (VCFResonance & 0x7f); /* lower 7 bits */ |
1878 | persson | 1179 | pData[136] = vcfresonance; |
1879 | schoenebeck | 809 | |
1880 | persson | 1266 | const uint8_t vcfbreakpoint = (VCFKeyboardTracking ? 0x80 : 0x00) | /* bit 7 */ |
1881 | persson | 918 | (VCFKeyboardTrackingBreakpoint & 0x7f); /* lower 7 bits */ |
1882 | persson | 1179 | pData[137] = vcfbreakpoint; |
1883 | schoenebeck | 809 | |
1884 | const uint8_t vcfvelocity = VCFVelocityDynamicRange % 5 | | ||
1885 | VCFVelocityCurve * 5; | ||
1886 | persson | 1179 | pData[138] = vcfvelocity; |
1887 | schoenebeck | 809 | |
1888 | const uint8_t vcftype = (VCFType == vcf_type_lowpassturbo) ? vcf_type_lowpass : VCFType; | ||
1889 | persson | 1179 | pData[139] = vcftype; |
1890 | persson | 1070 | |
1891 | if (chunksize >= 148) { | ||
1892 | memcpy(&pData[140], DimensionUpperLimits, 8); | ||
1893 | } | ||
1894 | schoenebeck | 809 | } |
1895 | |||
1896 | schoenebeck | 1358 | double* DimensionRegion::GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth) { |
1897 | curve_type_t curveType = releaseVelocityResponseCurve; | ||
1898 | uint8_t depth = releaseVelocityResponseDepth; | ||
1899 | // this models a strange behaviour or bug in GSt: two of the | ||
1900 | // velocity response curves for release time are not used even | ||
1901 | // if specified, instead another curve is chosen. | ||
1902 | if ((curveType == curve_type_nonlinear && depth == 0) || | ||
1903 | (curveType == curve_type_special && depth == 4)) { | ||
1904 | curveType = curve_type_nonlinear; | ||
1905 | depth = 3; | ||
1906 | } | ||
1907 | return GetVelocityTable(curveType, depth, 0); | ||
1908 | } | ||
1909 | |||
1910 | double* DimensionRegion::GetCutoffVelocityTable(curve_type_t vcfVelocityCurve, | ||
1911 | uint8_t vcfVelocityDynamicRange, | ||
1912 | uint8_t vcfVelocityScale, | ||
1913 | vcf_cutoff_ctrl_t vcfCutoffController) | ||
1914 | { | ||
1915 | curve_type_t curveType = vcfVelocityCurve; | ||
1916 | uint8_t depth = vcfVelocityDynamicRange; | ||
1917 | // even stranger GSt: two of the velocity response curves for | ||
1918 | // filter cutoff are not used, instead another special curve | ||
1919 | // is chosen. This curve is not used anywhere else. | ||
1920 | if ((curveType == curve_type_nonlinear && depth == 0) || | ||
1921 | (curveType == curve_type_special && depth == 4)) { | ||
1922 | curveType = curve_type_special; | ||
1923 | depth = 5; | ||
1924 | } | ||
1925 | return GetVelocityTable(curveType, depth, | ||
1926 | (vcfCutoffController <= vcf_cutoff_ctrl_none2) | ||
1927 | ? vcfVelocityScale : 0); | ||
1928 | } | ||
1929 | |||
1930 | persson | 613 | // get the corresponding velocity table from the table map or create & calculate that table if it doesn't exist yet |
1931 | double* DimensionRegion::GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) | ||
1932 | { | ||
1933 | double* table; | ||
1934 | uint32_t tableKey = (curveType<<16) | (depth<<8) | scaling; | ||
1935 | schoenebeck | 16 | if (pVelocityTables->count(tableKey)) { // if key exists |
1936 | persson | 613 | table = (*pVelocityTables)[tableKey]; |
1937 | schoenebeck | 16 | } |
1938 | else { | ||
1939 | persson | 613 | table = CreateVelocityTable(curveType, depth, scaling); |
1940 | (*pVelocityTables)[tableKey] = table; // put the new table into the tables map | ||
1941 | schoenebeck | 16 | } |
1942 | persson | 613 | return table; |
1943 | schoenebeck | 2 | } |
1944 | schoenebeck | 55 | |
1945 | schoenebeck | 1316 | Region* DimensionRegion::GetParent() const { |
1946 | return pRegion; | ||
1947 | } | ||
1948 | |||
1949 | schoenebeck | 36 | leverage_ctrl_t DimensionRegion::DecodeLeverageController(_lev_ctrl_t EncodedController) { |
1950 | leverage_ctrl_t decodedcontroller; | ||
1951 | switch (EncodedController) { | ||
1952 | // special controller | ||
1953 | case _lev_ctrl_none: | ||
1954 | decodedcontroller.type = leverage_ctrl_t::type_none; | ||
1955 | decodedcontroller.controller_number = 0; | ||
1956 | break; | ||
1957 | case _lev_ctrl_velocity: | ||
1958 | decodedcontroller.type = leverage_ctrl_t::type_velocity; | ||
1959 | decodedcontroller.controller_number = 0; | ||
1960 | break; | ||
1961 | case _lev_ctrl_channelaftertouch: | ||
1962 | decodedcontroller.type = leverage_ctrl_t::type_channelaftertouch; | ||
1963 | decodedcontroller.controller_number = 0; | ||
1964 | break; | ||
1965 | schoenebeck | 55 | |
1966 | schoenebeck | 36 | // ordinary MIDI control change controller |
1967 | case _lev_ctrl_modwheel: | ||
1968 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1969 | decodedcontroller.controller_number = 1; | ||
1970 | break; | ||
1971 | case _lev_ctrl_breath: | ||
1972 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1973 | decodedcontroller.controller_number = 2; | ||
1974 | break; | ||
1975 | case _lev_ctrl_foot: | ||
1976 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1977 | decodedcontroller.controller_number = 4; | ||
1978 | break; | ||
1979 | case _lev_ctrl_effect1: | ||
1980 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1981 | decodedcontroller.controller_number = 12; | ||
1982 | break; | ||
1983 | case _lev_ctrl_effect2: | ||
1984 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1985 | decodedcontroller.controller_number = 13; | ||
1986 | break; | ||
1987 | case _lev_ctrl_genpurpose1: | ||
1988 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1989 | decodedcontroller.controller_number = 16; | ||
1990 | break; | ||
1991 | case _lev_ctrl_genpurpose2: | ||
1992 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1993 | decodedcontroller.controller_number = 17; | ||
1994 | break; | ||
1995 | case _lev_ctrl_genpurpose3: | ||
1996 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
1997 | decodedcontroller.controller_number = 18; | ||
1998 | break; | ||
1999 | case _lev_ctrl_genpurpose4: | ||
2000 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2001 | decodedcontroller.controller_number = 19; | ||
2002 | break; | ||
2003 | case _lev_ctrl_portamentotime: | ||
2004 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2005 | decodedcontroller.controller_number = 5; | ||
2006 | break; | ||
2007 | case _lev_ctrl_sustainpedal: | ||
2008 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2009 | decodedcontroller.controller_number = 64; | ||
2010 | break; | ||
2011 | case _lev_ctrl_portamento: | ||
2012 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2013 | decodedcontroller.controller_number = 65; | ||
2014 | break; | ||
2015 | case _lev_ctrl_sostenutopedal: | ||
2016 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2017 | decodedcontroller.controller_number = 66; | ||
2018 | break; | ||
2019 | case _lev_ctrl_softpedal: | ||
2020 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2021 | decodedcontroller.controller_number = 67; | ||
2022 | break; | ||
2023 | case _lev_ctrl_genpurpose5: | ||
2024 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2025 | decodedcontroller.controller_number = 80; | ||
2026 | break; | ||
2027 | case _lev_ctrl_genpurpose6: | ||
2028 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2029 | decodedcontroller.controller_number = 81; | ||
2030 | break; | ||
2031 | case _lev_ctrl_genpurpose7: | ||
2032 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2033 | decodedcontroller.controller_number = 82; | ||
2034 | break; | ||
2035 | case _lev_ctrl_genpurpose8: | ||
2036 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2037 | decodedcontroller.controller_number = 83; | ||
2038 | break; | ||
2039 | case _lev_ctrl_effect1depth: | ||
2040 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2041 | decodedcontroller.controller_number = 91; | ||
2042 | break; | ||
2043 | case _lev_ctrl_effect2depth: | ||
2044 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2045 | decodedcontroller.controller_number = 92; | ||
2046 | break; | ||
2047 | case _lev_ctrl_effect3depth: | ||
2048 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2049 | decodedcontroller.controller_number = 93; | ||
2050 | break; | ||
2051 | case _lev_ctrl_effect4depth: | ||
2052 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2053 | decodedcontroller.controller_number = 94; | ||
2054 | break; | ||
2055 | case _lev_ctrl_effect5depth: | ||
2056 | decodedcontroller.type = leverage_ctrl_t::type_controlchange; | ||
2057 | decodedcontroller.controller_number = 95; | ||
2058 | break; | ||
2059 | schoenebeck | 55 | |
2060 | schoenebeck | 36 | // unknown controller type |
2061 | default: | ||
2062 | throw gig::Exception("Unknown leverage controller type."); | ||
2063 | } | ||
2064 | return decodedcontroller; | ||
2065 | } | ||
2066 | schoenebeck | 2 | |
2067 | schoenebeck | 809 | DimensionRegion::_lev_ctrl_t DimensionRegion::EncodeLeverageController(leverage_ctrl_t DecodedController) { |
2068 | _lev_ctrl_t encodedcontroller; | ||
2069 | switch (DecodedController.type) { | ||
2070 | // special controller | ||
2071 | case leverage_ctrl_t::type_none: | ||
2072 | encodedcontroller = _lev_ctrl_none; | ||
2073 | break; | ||
2074 | case leverage_ctrl_t::type_velocity: | ||
2075 | encodedcontroller = _lev_ctrl_velocity; | ||
2076 | break; | ||
2077 | case leverage_ctrl_t::type_channelaftertouch: | ||
2078 | encodedcontroller = _lev_ctrl_channelaftertouch; | ||
2079 | break; | ||
2080 | |||
2081 | // ordinary MIDI control change controller | ||
2082 | case leverage_ctrl_t::type_controlchange: | ||
2083 | switch (DecodedController.controller_number) { | ||
2084 | case 1: | ||
2085 | encodedcontroller = _lev_ctrl_modwheel; | ||
2086 | break; | ||
2087 | case 2: | ||
2088 | encodedcontroller = _lev_ctrl_breath; | ||
2089 | break; | ||
2090 | case 4: | ||
2091 | encodedcontroller = _lev_ctrl_foot; | ||
2092 | break; | ||
2093 | case 12: | ||
2094 | encodedcontroller = _lev_ctrl_effect1; | ||
2095 | break; | ||
2096 | case 13: | ||
2097 | encodedcontroller = _lev_ctrl_effect2; | ||
2098 | break; | ||
2099 | case 16: | ||
2100 | encodedcontroller = _lev_ctrl_genpurpose1; | ||
2101 | break; | ||
2102 | case 17: | ||
2103 | encodedcontroller = _lev_ctrl_genpurpose2; | ||
2104 | break; | ||
2105 | case 18: | ||
2106 | encodedcontroller = _lev_ctrl_genpurpose3; | ||
2107 | break; | ||
2108 | case 19: | ||
2109 | encodedcontroller = _lev_ctrl_genpurpose4; | ||
2110 | break; | ||
2111 | case 5: | ||
2112 | encodedcontroller = _lev_ctrl_portamentotime; | ||
2113 | break; | ||
2114 | case 64: | ||
2115 | encodedcontroller = _lev_ctrl_sustainpedal; | ||
2116 | break; | ||
2117 | case 65: | ||
2118 | encodedcontroller = _lev_ctrl_portamento; | ||
2119 | break; | ||
2120 | case 66: | ||
2121 | encodedcontroller = _lev_ctrl_sostenutopedal; | ||
2122 | break; | ||
2123 | case 67: | ||
2124 | encodedcontroller = _lev_ctrl_softpedal; | ||
2125 | break; | ||
2126 | case 80: | ||
2127 | encodedcontroller = _lev_ctrl_genpurpose5; | ||
2128 | break; | ||
2129 | case 81: | ||
2130 | encodedcontroller = _lev_ctrl_genpurpose6; | ||
2131 | break; | ||
2132 | case 82: | ||
2133 | encodedcontroller = _lev_ctrl_genpurpose7; | ||
2134 | break; | ||
2135 | case 83: | ||
2136 | encodedcontroller = _lev_ctrl_genpurpose8; | ||
2137 | break; | ||
2138 | case 91: | ||
2139 | encodedcontroller = _lev_ctrl_effect1depth; | ||
2140 | break; | ||
2141 | case 92: | ||
2142 | encodedcontroller = _lev_ctrl_effect2depth; | ||
2143 | break; | ||
2144 | case 93: | ||
2145 | encodedcontroller = _lev_ctrl_effect3depth; | ||
2146 | break; | ||
2147 | case 94: | ||
2148 | encodedcontroller = _lev_ctrl_effect4depth; | ||
2149 | break; | ||
2150 | case 95: | ||
2151 | encodedcontroller = _lev_ctrl_effect5depth; | ||
2152 | break; | ||
2153 | default: | ||
2154 | throw gig::Exception("leverage controller number is not supported by the gig format"); | ||
2155 | } | ||
2156 | persson | 1182 | break; |
2157 | schoenebeck | 809 | default: |
2158 | throw gig::Exception("Unknown leverage controller type."); | ||
2159 | } | ||
2160 | return encodedcontroller; | ||
2161 | } | ||
2162 | |||
2163 | schoenebeck | 16 | DimensionRegion::~DimensionRegion() { |
2164 | Instances--; | ||
2165 | if (!Instances) { | ||
2166 | // delete the velocity->volume tables | ||
2167 | VelocityTableMap::iterator iter; | ||
2168 | for (iter = pVelocityTables->begin(); iter != pVelocityTables->end(); iter++) { | ||
2169 | double* pTable = iter->second; | ||
2170 | if (pTable) delete[] pTable; | ||
2171 | } | ||
2172 | pVelocityTables->clear(); | ||
2173 | delete pVelocityTables; | ||
2174 | pVelocityTables = NULL; | ||
2175 | } | ||
2176 | persson | 858 | if (VelocityTable) delete[] VelocityTable; |
2177 | schoenebeck | 16 | } |
2178 | schoenebeck | 2 | |
2179 | schoenebeck | 16 | /** |
2180 | * Returns the correct amplitude factor for the given \a MIDIKeyVelocity. | ||
2181 | * All involved parameters (VelocityResponseCurve, VelocityResponseDepth | ||
2182 | * and VelocityResponseCurveScaling) involved are taken into account to | ||
2183 | * calculate the amplitude factor. Use this method when a key was | ||
2184 | * triggered to get the volume with which the sample should be played | ||
2185 | * back. | ||
2186 | * | ||
2187 | schoenebeck | 36 | * @param MIDIKeyVelocity MIDI velocity value of the triggered key (between 0 and 127) |
2188 | * @returns amplitude factor (between 0.0 and 1.0) | ||
2189 | schoenebeck | 16 | */ |
2190 | double DimensionRegion::GetVelocityAttenuation(uint8_t MIDIKeyVelocity) { | ||
2191 | return pVelocityAttenuationTable[MIDIKeyVelocity]; | ||
2192 | } | ||
2193 | schoenebeck | 2 | |
2194 | persson | 613 | double DimensionRegion::GetVelocityRelease(uint8_t MIDIKeyVelocity) { |
2195 | return pVelocityReleaseTable[MIDIKeyVelocity]; | ||
2196 | } | ||
2197 | |||
2198 | persson | 728 | double DimensionRegion::GetVelocityCutoff(uint8_t MIDIKeyVelocity) { |
2199 | return pVelocityCutoffTable[MIDIKeyVelocity]; | ||
2200 | } | ||
2201 | |||
2202 | schoenebeck | 1358 | /** |
2203 | * Updates the respective member variable and the lookup table / cache | ||
2204 | * that depends on this value. | ||
2205 | */ | ||
2206 | void DimensionRegion::SetVelocityResponseCurve(curve_type_t curve) { | ||
2207 | pVelocityAttenuationTable = | ||
2208 | GetVelocityTable( | ||
2209 | curve, VelocityResponseDepth, VelocityResponseCurveScaling | ||
2210 | ); | ||
2211 | VelocityResponseCurve = curve; | ||
2212 | } | ||
2213 | |||
2214 | /** | ||
2215 | * Updates the respective member variable and the lookup table / cache | ||
2216 | * that depends on this value. | ||
2217 | */ | ||
2218 | void DimensionRegion::SetVelocityResponseDepth(uint8_t depth) { | ||
2219 | pVelocityAttenuationTable = | ||
2220 | GetVelocityTable( | ||
2221 | VelocityResponseCurve, depth, VelocityResponseCurveScaling | ||
2222 | ); | ||
2223 | VelocityResponseDepth = depth; | ||
2224 | } | ||
2225 | |||
2226 | /** | ||
2227 | * Updates the respective member variable and the lookup table / cache | ||
2228 | * that depends on this value. | ||
2229 | */ | ||
2230 | void DimensionRegion::SetVelocityResponseCurveScaling(uint8_t scaling) { | ||
2231 | pVelocityAttenuationTable = | ||
2232 | GetVelocityTable( | ||
2233 | VelocityResponseCurve, VelocityResponseDepth, scaling | ||
2234 | ); | ||
2235 | VelocityResponseCurveScaling = scaling; | ||
2236 | } | ||
2237 | |||
2238 | /** | ||
2239 | * Updates the respective member variable and the lookup table / cache | ||
2240 | * that depends on this value. | ||
2241 | */ | ||
2242 | void DimensionRegion::SetReleaseVelocityResponseCurve(curve_type_t curve) { | ||
2243 | pVelocityReleaseTable = GetReleaseVelocityTable(curve, ReleaseVelocityResponseDepth); | ||
2244 | ReleaseVelocityResponseCurve = curve; | ||
2245 | } | ||
2246 | |||
2247 | /** | ||
2248 | * Updates the respective member variable and the lookup table / cache | ||
2249 | * that depends on this value. | ||
2250 | */ | ||
2251 | void DimensionRegion::SetReleaseVelocityResponseDepth(uint8_t depth) { | ||
2252 | pVelocityReleaseTable = GetReleaseVelocityTable(ReleaseVelocityResponseCurve, depth); | ||
2253 | ReleaseVelocityResponseDepth = depth; | ||
2254 | } | ||
2255 | |||
2256 | /** | ||
2257 | * Updates the respective member variable and the lookup table / cache | ||
2258 | * that depends on this value. | ||
2259 | */ | ||
2260 | void DimensionRegion::SetVCFCutoffController(vcf_cutoff_ctrl_t controller) { | ||
2261 | pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, VCFVelocityDynamicRange, VCFVelocityScale, controller); | ||
2262 | VCFCutoffController = controller; | ||
2263 | } | ||
2264 | |||
2265 | /** | ||
2266 | * Updates the respective member variable and the lookup table / cache | ||
2267 | * that depends on this value. | ||
2268 | */ | ||
2269 | void DimensionRegion::SetVCFVelocityCurve(curve_type_t curve) { | ||
2270 | pVelocityCutoffTable = GetCutoffVelocityTable(curve, VCFVelocityDynamicRange, VCFVelocityScale, VCFCutoffController); | ||
2271 | VCFVelocityCurve = curve; | ||
2272 | } | ||
2273 | |||
2274 | /** | ||
2275 | * Updates the respective member variable and the lookup table / cache | ||
2276 | * that depends on this value. | ||
2277 | */ | ||
2278 | void DimensionRegion::SetVCFVelocityDynamicRange(uint8_t range) { | ||
2279 | pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, range, VCFVelocityScale, VCFCutoffController); | ||
2280 | VCFVelocityDynamicRange = range; | ||
2281 | } | ||
2282 | |||
2283 | /** | ||
2284 | * Updates the respective member variable and the lookup table / cache | ||
2285 | * that depends on this value. | ||
2286 | */ | ||
2287 | void DimensionRegion::SetVCFVelocityScale(uint8_t scaling) { | ||
2288 | pVelocityCutoffTable = GetCutoffVelocityTable(VCFVelocityCurve, VCFVelocityDynamicRange, scaling, VCFCutoffController); | ||
2289 | VCFVelocityScale = scaling; | ||
2290 | } | ||
2291 | |||
2292 | schoenebeck | 308 | double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
2293 | schoenebeck | 317 | |
2294 | schoenebeck | 308 | // line-segment approximations of the 15 velocity curves |
2295 | schoenebeck | 16 | |
2296 | schoenebeck | 308 | // linear |
2297 | const int lin0[] = { 1, 1, 127, 127 }; | ||
2298 | const int lin1[] = { 1, 21, 127, 127 }; | ||
2299 | const int lin2[] = { 1, 45, 127, 127 }; | ||
2300 | const int lin3[] = { 1, 74, 127, 127 }; | ||
2301 | const int lin4[] = { 1, 127, 127, 127 }; | ||
2302 | schoenebeck | 16 | |
2303 | schoenebeck | 308 | // non-linear |
2304 | const int non0[] = { 1, 4, 24, 5, 57, 17, 92, 57, 122, 127, 127, 127 }; | ||
2305 | schoenebeck | 317 | const int non1[] = { 1, 4, 46, 9, 93, 56, 118, 106, 123, 127, |
2306 | schoenebeck | 308 | 127, 127 }; |
2307 | const int non2[] = { 1, 4, 46, 9, 57, 20, 102, 107, 107, 127, | ||
2308 | 127, 127 }; | ||
2309 | const int non3[] = { 1, 15, 10, 19, 67, 73, 80, 80, 90, 98, 98, 127, | ||
2310 | 127, 127 }; | ||
2311 | const int non4[] = { 1, 25, 33, 57, 82, 81, 92, 127, 127, 127 }; | ||
2312 | schoenebeck | 317 | |
2313 | schoenebeck | 308 | // special |
2314 | schoenebeck | 317 | const int spe0[] = { 1, 2, 76, 10, 90, 15, 95, 20, 99, 28, 103, 44, |
2315 | schoenebeck | 308 | 113, 127, 127, 127 }; |
2316 | const int spe1[] = { 1, 2, 27, 5, 67, 18, 89, 29, 95, 35, 107, 67, | ||
2317 | 118, 127, 127, 127 }; | ||
2318 | schoenebeck | 317 | const int spe2[] = { 1, 1, 33, 1, 53, 5, 61, 13, 69, 32, 79, 74, |
2319 | schoenebeck | 308 | 85, 90, 91, 127, 127, 127 }; |
2320 | schoenebeck | 317 | const int spe3[] = { 1, 32, 28, 35, 66, 48, 89, 59, 95, 65, 99, 73, |
2321 | schoenebeck | 308 | 117, 127, 127, 127 }; |
2322 | schoenebeck | 317 | const int spe4[] = { 1, 4, 23, 5, 49, 13, 57, 17, 92, 57, 122, 127, |
2323 | schoenebeck | 308 | 127, 127 }; |
2324 | schoenebeck | 317 | |
2325 | persson | 728 | // this is only used by the VCF velocity curve |
2326 | const int spe5[] = { 1, 2, 30, 5, 60, 19, 77, 70, 83, 85, 88, 106, | ||
2327 | 91, 127, 127, 127 }; | ||
2328 | |||
2329 | schoenebeck | 308 | const int* const curves[] = { non0, non1, non2, non3, non4, |
2330 | schoenebeck | 317 | lin0, lin1, lin2, lin3, lin4, |
2331 | persson | 728 | spe0, spe1, spe2, spe3, spe4, spe5 }; |
2332 | schoenebeck | 317 | |
2333 | schoenebeck | 308 | double* const table = new double[128]; |
2334 | |||
2335 | const int* curve = curves[curveType * 5 + depth]; | ||
2336 | const int s = scaling == 0 ? 20 : scaling; // 0 or 20 means no scaling | ||
2337 | schoenebeck | 317 | |
2338 | schoenebeck | 308 | table[0] = 0; |
2339 | for (int x = 1 ; x < 128 ; x++) { | ||
2340 | |||
2341 | if (x > curve[2]) curve += 2; | ||
2342 | schoenebeck | 317 | double y = curve[1] + (x - curve[0]) * |
2343 | schoenebeck | 308 | (double(curve[3] - curve[1]) / (curve[2] - curve[0])); |
2344 | y = y / 127; | ||
2345 | |||
2346 | // Scale up for s > 20, down for s < 20. When | ||
2347 | // down-scaling, the curve still ends at 1.0. | ||
2348 | if (s < 20 && y >= 0.5) | ||
2349 | y = y / ((2 - 40.0 / s) * y + 40.0 / s - 1); | ||
2350 | else | ||
2351 | y = y * (s / 20.0); | ||
2352 | if (y > 1) y = 1; | ||
2353 | |||
2354 | table[x] = y; | ||
2355 | } | ||
2356 | return table; | ||
2357 | } | ||
2358 | |||
2359 | |||
2360 | schoenebeck | 2 | // *************** Region *************** |
2361 | // * | ||
2362 | |||
2363 | Region::Region(Instrument* pInstrument, RIFF::List* rgnList) : DLS::Region((DLS::Instrument*) pInstrument, rgnList) { | ||
2364 | // Initialization | ||
2365 | Dimensions = 0; | ||
2366 | schoenebeck | 347 | for (int i = 0; i < 256; i++) { |
2367 | schoenebeck | 2 | pDimensionRegions[i] = NULL |