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Sun Dec 8 22:59:11 2019 UTC (4 years, 4 months ago) by schoenebeck
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* GIG FORMAT EXTENSION: added LinuxSampler specific filter type
  implementations to enum gig::vcf_type_t: vcf_type_lowpass_1p,
  vcf_type_lowpass_2p, vcf_type_lowpass_4p, vcf_type_lowpass_6p,
  vcf_type_highpass_1p, vcf_type_highpass_2p, vcf_type_highpass_4p,
  vcf_type_highpass_6p, vcf_type_bandpass_2p, vcf_type_bandreject_2p.

* Bumped version (4.2.0.svn2).
1 /***************************************************************************
2 * *
3 * libgig - C++ cross-platform Gigasampler format file access library *
4 * *
5 * Copyright (C) 2003-2019 by Christian Schoenebeck *
6 * <cuse@users.sourceforge.net> *
7 * *
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 #ifndef __GIG_H__
25 #define __GIG_H__
26
27 #include "DLS.h"
28 #include <vector>
29
30 #ifndef __has_feature
31 # define __has_feature(x) 0
32 #endif
33 #ifndef HAVE_RTTI
34 # if __GXX_RTTI || __has_feature(cxx_rtti) || _CPPRTTI
35 # define HAVE_RTTI 1
36 # else
37 # define HAVE_RTTI 0
38 # endif
39 #endif
40 #if HAVE_RTTI
41 # include <typeinfo>
42 #else
43 # warning No RTTI available!
44 #endif
45
46 #if WORDS_BIGENDIAN
47 # define LIST_TYPE_3PRG 0x33707267
48 # define LIST_TYPE_3EWL 0x3365776C
49 # define LIST_TYPE_3GRI 0x33677269
50 # define LIST_TYPE_3GNL 0x33676E6C
51 # define LIST_TYPE_3LS 0x334c5320 // own gig format extension
52 # define LIST_TYPE_RTIS 0x52544953 // own gig format extension
53 # define CHUNK_ID_3GIX 0x33676978
54 # define CHUNK_ID_3EWA 0x33657761
55 # define CHUNK_ID_3LNK 0x336C6E6B
56 # define CHUNK_ID_3EWG 0x33657767
57 # define CHUNK_ID_EWAV 0x65776176
58 # define CHUNK_ID_3GNM 0x33676E6D
59 # define CHUNK_ID_EINF 0x65696E66
60 # define CHUNK_ID_3CRC 0x33637263
61 # define CHUNK_ID_SCRI 0x53637269 // own gig format extension
62 # define CHUNK_ID_LSNM 0x4c534e4d // own gig format extension
63 # define CHUNK_ID_SCSL 0x5343534c // own gig format extension
64 # define CHUNK_ID_LSDE 0x4c534445 // own gig format extension
65 #else // little endian
66 # define LIST_TYPE_3PRG 0x67727033
67 # define LIST_TYPE_3EWL 0x6C776533
68 # define LIST_TYPE_3GRI 0x69726733
69 # define LIST_TYPE_3GNL 0x6C6E6733
70 # define LIST_TYPE_3LS 0x20534c33 // own gig format extension
71 # define LIST_TYPE_RTIS 0x53495452 // own gig format extension
72 # define CHUNK_ID_3GIX 0x78696733
73 # define CHUNK_ID_3EWA 0x61776533
74 # define CHUNK_ID_3LNK 0x6B6E6C33
75 # define CHUNK_ID_3EWG 0x67776533
76 # define CHUNK_ID_EWAV 0x76617765
77 # define CHUNK_ID_3GNM 0x6D6E6733
78 # define CHUNK_ID_EINF 0x666E6965
79 # define CHUNK_ID_3CRC 0x63726333
80 # define CHUNK_ID_SCRI 0x69726353 // own gig format extension
81 # define CHUNK_ID_LSNM 0x4d4e534c // own gig format extension
82 # define CHUNK_ID_SCSL 0x4c534353 // own gig format extension
83 # define CHUNK_ID_LSDE 0x4544534c // own gig format extension
84 #endif // WORDS_BIGENDIAN
85
86 #ifndef GIG_DECLARE_ENUM
87 # define GIG_DECLARE_ENUM(type, ...) enum type { __VA_ARGS__ }
88 #endif
89
90 // just symbol prototyping (since Serialization.h not included by default here)
91 namespace Serialization { class Archive; }
92
93 /** Gigasampler/GigaStudio specific classes and definitions */
94 namespace gig {
95
96 typedef std::string String;
97 typedef RIFF::progress_t progress_t;
98 typedef RIFF::file_offset_t file_offset_t;
99
100 /** Lower and upper limit of a range. */
101 struct range_t {
102 uint8_t low; ///< Low value of range.
103 uint8_t high; ///< High value of range.
104 };
105
106 /** Pointer address and size of a buffer. */
107 struct buffer_t {
108 void* pStart; ///< Points to the beginning of the buffer.
109 file_offset_t Size; ///< Size of the actual data in the buffer in bytes.
110 file_offset_t NullExtensionSize; ///< The buffer might be bigger than the actual data, if that's the case that unused space at the end of the buffer is filled with NULLs and NullExtensionSize reflects that unused buffer space in bytes. Those NULL extensions are mandatory for differential algorithms that have to take the following data words into account, thus have to access past the buffer's boundary. If you don't know what I'm talking about, just forget this variable. :)
111 buffer_t() {
112 pStart = NULL;
113 Size = 0;
114 NullExtensionSize = 0;
115 }
116 };
117
118 /** Standard types of sample loops.
119 *
120 * @see enumCount(), enumKey(), enumKeys(), enumValue()
121 */
122 GIG_DECLARE_ENUM(loop_type_t,
123 loop_type_normal = 0x00000000, /**< Loop forward (normal) */
124 loop_type_bidirectional = 0x00000001, /**< Alternating loop (forward/backward, also known as Ping Pong) */
125 loop_type_backward = 0x00000002 /**< Loop backward (reverse) */
126 );
127
128 /** Society of Motion Pictures and Television E time format.
129 *
130 * @see enumCount(), enumKey(), enumKeys(), enumValue()
131 */
132 GIG_DECLARE_ENUM(smpte_format_t,
133 smpte_format_no_offset = 0x00000000, /**< no SMPTE offset */
134 smpte_format_24_frames = 0x00000018, /**< 24 frames per second */
135 smpte_format_25_frames = 0x00000019, /**< 25 frames per second */
136 smpte_format_30_frames_dropping = 0x0000001D, /**< 30 frames per second with frame dropping (30 drop) */
137 smpte_format_30_frames = 0x0000001E /**< 30 frames per second */
138 );
139
140 /** Defines the shape of a function graph.
141 *
142 * @see enumCount(), enumKey(), enumKeys(), enumValue()
143 */
144 GIG_DECLARE_ENUM(curve_type_t,
145 curve_type_nonlinear = 0, /**< Non-linear curve type. */
146 curve_type_linear = 1, /**< Linear curve type. */
147 curve_type_special = 2, /**< Special curve type. */
148 curve_type_unknown = 0xffffffff /**< Unknown curve type. */
149 );
150
151 /** Defines the wave form type used by an LFO (gig format extension).
152 *
153 * This is a gig format extension. The original Gigasampler/GigaStudio
154 * software always used a sine (sinus) wave form for all its 3 LFOs, so this
155 * was not configurable in the original gig format. Accordingly setting any
156 * other wave form than sine (sinus) will be ignored by the original
157 * Gigasampler/GigaStudio software.
158 *
159 * @see enumCount(), enumKey(), enumKeys(), enumValue()
160 */
161 GIG_DECLARE_ENUM(lfo_wave_t,
162 lfo_wave_sine = 0, /**< Sine (sinus) wave form (this is the default wave form). */
163 lfo_wave_triangle = 1, /**< Triangle wave form. */
164 lfo_wave_saw = 2, /**< Saw (up) wave form (saw down wave form can be achieved by flipping the phase). */
165 lfo_wave_square = 3, /**< Square wave form. */
166 );
167
168 /** Dimensions allow to bypass one of the following controllers.
169 *
170 * @see enumCount(), enumKey(), enumKeys(), enumValue()
171 */
172 GIG_DECLARE_ENUM(dim_bypass_ctrl_t,
173 dim_bypass_ctrl_none, /**< No controller bypass. */
174 dim_bypass_ctrl_94, /**< Effect 4 Depth (MIDI Controller 94) */
175 dim_bypass_ctrl_95 /**< Effect 5 Depth (MIDI Controller 95) */
176 );
177
178 /** Defines how LFO3 is controlled by.
179 *
180 * @see enumCount(), enumKey(), enumKeys(), enumValue()
181 */
182 GIG_DECLARE_ENUM(lfo3_ctrl_t,
183 lfo3_ctrl_internal = 0x00, /**< Only internally controlled. */
184 lfo3_ctrl_modwheel = 0x01, /**< Only controlled by external modulation wheel. */
185 lfo3_ctrl_aftertouch = 0x02, /**< Only controlled by aftertouch controller. */
186 lfo3_ctrl_internal_modwheel = 0x03, /**< Controlled internally and by external modulation wheel. */
187 lfo3_ctrl_internal_aftertouch = 0x04 /**< Controlled internally and by aftertouch controller. */
188 );
189
190 /** Defines how LFO2 is controlled by.
191 *
192 * @see enumCount(), enumKey(), enumKeys(), enumValue()
193 */
194 GIG_DECLARE_ENUM(lfo2_ctrl_t,
195 lfo2_ctrl_internal = 0x00, /**< Only internally controlled. */
196 lfo2_ctrl_modwheel = 0x01, /**< Only controlled by external modulation wheel. */
197 lfo2_ctrl_foot = 0x02, /**< Only controlled by external foot controller. */
198 lfo2_ctrl_internal_modwheel = 0x03, /**< Controlled internally and by external modulation wheel. */
199 lfo2_ctrl_internal_foot = 0x04 /**< Controlled internally and by external foot controller. */
200 );
201
202 /** Defines how LFO1 is controlled by.
203 *
204 * @see enumCount(), enumKey(), enumKeys(), enumValue()
205 */
206 GIG_DECLARE_ENUM(lfo1_ctrl_t,
207 lfo1_ctrl_internal = 0x00, /**< Only internally controlled. */
208 lfo1_ctrl_modwheel = 0x01, /**< Only controlled by external modulation wheel. */
209 lfo1_ctrl_breath = 0x02, /**< Only controlled by external breath controller. */
210 lfo1_ctrl_internal_modwheel = 0x03, /**< Controlled internally and by external modulation wheel. */
211 lfo1_ctrl_internal_breath = 0x04 /**< Controlled internally and by external breath controller. */
212 );
213
214 /** Defines how the filter cutoff frequency is controlled by.
215 *
216 * @see enumCount(), enumKey(), enumKeys(), enumValue()
217 */
218 GIG_DECLARE_ENUM(vcf_cutoff_ctrl_t,
219 vcf_cutoff_ctrl_none = 0x00, /**< No MIDI controller assigned for filter cutoff frequency. */
220 vcf_cutoff_ctrl_none2 = 0x01, /**< The difference between none and none2 is unknown */
221 vcf_cutoff_ctrl_modwheel = 0x81, /**< Modulation Wheel (MIDI Controller 1) */
222 vcf_cutoff_ctrl_effect1 = 0x8c, /**< Effect Controller 1 (Coarse, MIDI Controller 12) */
223 vcf_cutoff_ctrl_effect2 = 0x8d, /**< Effect Controller 2 (Coarse, MIDI Controller 13) */
224 vcf_cutoff_ctrl_breath = 0x82, /**< Breath Controller (Coarse, MIDI Controller 2) */
225 vcf_cutoff_ctrl_foot = 0x84, /**< Foot Pedal (Coarse, MIDI Controller 4) */
226 vcf_cutoff_ctrl_sustainpedal = 0xc0, /**< Sustain Pedal (MIDI Controller 64) */
227 vcf_cutoff_ctrl_softpedal = 0xc3, /**< Soft Pedal (MIDI Controller 67) */
228 vcf_cutoff_ctrl_genpurpose7 = 0xd2, /**< General Purpose Controller 7 (Button, MIDI Controller 82) */
229 vcf_cutoff_ctrl_genpurpose8 = 0xd3, /**< General Purpose Controller 8 (Button, MIDI Controller 83) */
230 vcf_cutoff_ctrl_aftertouch = 0x80 /**< Key Pressure */
231 );
232
233 /** Defines how the filter resonance is controlled by.
234 *
235 * @see enumCount(), enumKey(), enumKeys(), enumValue()
236 */
237 GIG_DECLARE_ENUM(vcf_res_ctrl_t,
238 vcf_res_ctrl_none = 0xffffffff, /**< No MIDI controller assigned for filter resonance. */
239 vcf_res_ctrl_genpurpose3 = 0, /**< General Purpose Controller 3 (Slider, MIDI Controller 18) */
240 vcf_res_ctrl_genpurpose4 = 1, /**< General Purpose Controller 4 (Slider, MIDI Controller 19) */
241 vcf_res_ctrl_genpurpose5 = 2, /**< General Purpose Controller 5 (Button, MIDI Controller 80) */
242 vcf_res_ctrl_genpurpose6 = 3 /**< General Purpose Controller 6 (Button, MIDI Controller 81) */
243 );
244
245 /**
246 * Defines a controller that has a certain contrained influence on a
247 * particular synthesis parameter (used to define attenuation controller,
248 * EG1 controller and EG2 controller).
249 *
250 * You should use the respective <i>typedef</i> (means either
251 * attenuation_ctrl_t, eg1_ctrl_t or eg2_ctrl_t) in your code!
252 */
253 struct leverage_ctrl_t {
254 /** Defines possible controllers.
255 *
256 * @see enumCount(), enumKey(), enumKeys(), enumValue()
257 */
258 GIG_DECLARE_ENUM(type_t,
259 type_none = 0x00, /**< No controller defined */
260 type_channelaftertouch = 0x2f, /**< Channel Key Pressure */
261 type_velocity = 0xff, /**< Key Velocity */
262 type_controlchange = 0xfe /**< Ordinary MIDI control change controller, see field 'controller_number' */
263 );
264
265 type_t type; ///< Controller type
266 uint controller_number; ///< MIDI controller number if this controller is a control change controller, 0 otherwise
267
268 void serialize(Serialization::Archive* archive);
269 };
270
271 /**
272 * Defines controller influencing attenuation.
273 *
274 * @see leverage_ctrl_t
275 */
276 typedef leverage_ctrl_t attenuation_ctrl_t;
277
278 /**
279 * Defines controller influencing envelope generator 1.
280 *
281 * @see leverage_ctrl_t
282 */
283 typedef leverage_ctrl_t eg1_ctrl_t;
284
285 /**
286 * Defines controller influencing envelope generator 2.
287 *
288 * @see leverage_ctrl_t
289 */
290 typedef leverage_ctrl_t eg2_ctrl_t;
291
292 /**
293 * Defines the type of dimension, that is how the dimension zones (and
294 * thus how the dimension regions are selected by. The number of
295 * dimension zones is always a power of two. All dimensions can have up
296 * to 32 zones (except the layer dimension with only up to 8 zones and
297 * the samplechannel dimension which currently allows only 2 zones).
298 *
299 * @see enumCount(), enumKey(), enumKeys(), enumValue()
300 */
301 GIG_DECLARE_ENUM(dimension_t,
302 dimension_none = 0x00, /**< Dimension not in use. */
303 dimension_samplechannel = 0x80, /**< If used sample has more than one channel (thus is not mono). */
304 dimension_layer = 0x81, /**< For layering of up to 8 instruments (and eventually crossfading of 2 or 4 layers). */
305 dimension_velocity = 0x82, /**< Key Velocity (this is the only dimension in gig2 where the ranges can exactly be defined). */
306 dimension_channelaftertouch = 0x83, /**< Channel Key Pressure */
307 dimension_releasetrigger = 0x84, /**< Special dimension for triggering samples on releasing a key. */
308 dimension_keyboard = 0x85, /**< Dimension for keyswitching */
309 dimension_roundrobin = 0x86, /**< Different samples triggered each time a note is played, dimension regions selected in sequence */
310 dimension_random = 0x87, /**< Different samples triggered each time a note is played, random order */
311 dimension_smartmidi = 0x88, /**< For MIDI tools like legato and repetition mode */
312 dimension_roundrobinkeyboard = 0x89, /**< Different samples triggered each time a note is played, any key advances the counter */
313 dimension_modwheel = 0x01, /**< Modulation Wheel (MIDI Controller 1) */
314 dimension_breath = 0x02, /**< Breath Controller (Coarse, MIDI Controller 2) */
315 dimension_foot = 0x04, /**< Foot Pedal (Coarse, MIDI Controller 4) */
316 dimension_portamentotime = 0x05, /**< Portamento Time (Coarse, MIDI Controller 5) */
317 dimension_effect1 = 0x0c, /**< Effect Controller 1 (Coarse, MIDI Controller 12) */
318 dimension_effect2 = 0x0d, /**< Effect Controller 2 (Coarse, MIDI Controller 13) */
319 dimension_genpurpose1 = 0x10, /**< General Purpose Controller 1 (Slider, MIDI Controller 16) */
320 dimension_genpurpose2 = 0x11, /**< General Purpose Controller 2 (Slider, MIDI Controller 17) */
321 dimension_genpurpose3 = 0x12, /**< General Purpose Controller 3 (Slider, MIDI Controller 18) */
322 dimension_genpurpose4 = 0x13, /**< General Purpose Controller 4 (Slider, MIDI Controller 19) */
323 dimension_sustainpedal = 0x40, /**< Sustain Pedal (MIDI Controller 64) */
324 dimension_portamento = 0x41, /**< Portamento (MIDI Controller 65) */
325 dimension_sostenutopedal = 0x42, /**< Sostenuto Pedal (MIDI Controller 66) */
326 dimension_softpedal = 0x43, /**< Soft Pedal (MIDI Controller 67) */
327 dimension_genpurpose5 = 0x30, /**< General Purpose Controller 5 (Button, MIDI Controller 80) */
328 dimension_genpurpose6 = 0x31, /**< General Purpose Controller 6 (Button, MIDI Controller 81) */
329 dimension_genpurpose7 = 0x32, /**< General Purpose Controller 7 (Button, MIDI Controller 82) */
330 dimension_genpurpose8 = 0x33, /**< General Purpose Controller 8 (Button, MIDI Controller 83) */
331 dimension_effect1depth = 0x5b, /**< Effect 1 Depth (MIDI Controller 91) */
332 dimension_effect2depth = 0x5c, /**< Effect 2 Depth (MIDI Controller 92) */
333 dimension_effect3depth = 0x5d, /**< Effect 3 Depth (MIDI Controller 93) */
334 dimension_effect4depth = 0x5e, /**< Effect 4 Depth (MIDI Controller 94) */
335 dimension_effect5depth = 0x5f /**< Effect 5 Depth (MIDI Controller 95) */
336 );
337
338 /**
339 * Intended for internal usage: will be used to convert a dimension value
340 * into the corresponding dimension bit number.
341 *
342 * @see enumCount(), enumKey(), enumKeys(), enumValue()
343 */
344 GIG_DECLARE_ENUM(split_type_t,
345 split_type_normal, /**< dimension value between 0-127 */
346 split_type_bit /**< dimension values are already the sought bit number */
347 );
348
349 /** General dimension definition. */
350 struct dimension_def_t {
351 dimension_t dimension; ///< Specifies which source (usually a MIDI controller) is associated with the dimension.
352 uint8_t bits; ///< Number of "bits" (1 bit = 2 splits/zones, 2 bit = 4 splits/zones, 3 bit = 8 splits/zones,...).
353 uint8_t zones; ///< Number of zones the dimension has.
354 split_type_t split_type; ///< Intended for internal usage: will be used to convert a dimension value into the corresponding dimension bit number.
355 float zone_size; ///< Intended for internal usage: reflects the size of each zone (128/zones) for normal split types only, 0 otherwise.
356 };
357
358 /** Audio filter types.
359 *
360 * The first 5 filter types are the ones which exist in GigaStudio, and
361 * which are very accurately modeled on LinuxSampler side such that they
362 * would sound with LinuxSampler exactly as with GigaStudio.
363 *
364 * The other filter types listed here are extensions to the gig format and
365 * are LinuxSampler specific filter type implementations. Note that none of
366 * these are duplicates of the GigaStudio filter types. For instance
367 * @c vcf_type_lowpass (GigaStudio) and @c vcf_type_lowpass_2p
368 * (LinuxSampler) are both lowpass filters with 2 poles, however they do
369 * sound differently.
370 *
371 * @see enumCount(), enumKey(), enumKeys(), enumValue()
372 */
373 GIG_DECLARE_ENUM(vcf_type_t,
374 vcf_type_lowpass = 0x00, /**< Standard lowpass filter type (GigaStudio). */
375 vcf_type_lowpassturbo = 0xff, /**< More poles than normal lowpass (GigaStudio). */
376 vcf_type_bandpass = 0x01, /**< Bandpass filter type (GigaStudio). */
377 vcf_type_highpass = 0x02, /**< Highpass filter type (GigaStudio). */
378 vcf_type_bandreject = 0x03, /**< Band reject filter type (GigaStudio). */
379 vcf_type_lowpass_1p = 0x11, /**< [gig extension]: 1-pole lowpass filter type (LinuxSampler). */
380 vcf_type_lowpass_2p = 0x12, /**< [gig extension]: 2-pole lowpass filter type (LinuxSampler). */
381 vcf_type_lowpass_4p = 0x14, /**< [gig extension]: 4-pole lowpass filter type (LinuxSampler). */
382 vcf_type_lowpass_6p = 0x16, /**< [gig extension]: 6-pole lowpass filter type (LinuxSampler). */
383 vcf_type_highpass_1p = 0x21, /**< [gig extension]: 1-pole highpass filter type (LinuxSampler). */
384 vcf_type_highpass_2p = 0x22, /**< [gig extension]: 2-pole highpass filter type (LinuxSampler). */
385 vcf_type_highpass_4p = 0x24, /**< [gig extension]: 4-pole highpass filter type (LinuxSampler). */
386 vcf_type_highpass_6p = 0x26, /**< [gig extension]: 6-pole highpass filter type (LinuxSampler). */
387 vcf_type_bandpass_2p = 0x32, /**< [gig extension]: 2-pole bandpass filter type (LinuxSampler). */
388 vcf_type_bandreject_2p = 0x42 /**< [gig extension]: 2-pole bandreject filter type (LinuxSampler). */
389 );
390
391 /**
392 * Defines the envelope of a crossfade.
393 *
394 * Note: The default value for crossfade points is 0,0,0,0. Layers with
395 * such a default value should be treated as if they would not have a
396 * crossfade.
397 */
398 struct crossfade_t {
399 #if WORDS_BIGENDIAN
400 uint8_t out_end; ///< End postition of fade out.
401 uint8_t out_start; ///< Start position of fade out.
402 uint8_t in_end; ///< End position of fade in.
403 uint8_t in_start; ///< Start position of fade in.
404 #else // little endian
405 uint8_t in_start; ///< Start position of fade in.
406 uint8_t in_end; ///< End position of fade in.
407 uint8_t out_start; ///< Start position of fade out.
408 uint8_t out_end; ///< End postition of fade out.
409 #endif // WORDS_BIGENDIAN
410
411 void serialize(Serialization::Archive* archive);
412 };
413
414 /** Reflects the current playback state for a sample. */
415 struct playback_state_t {
416 file_offset_t position; ///< Current position within the sample.
417 bool reverse; ///< If playback direction is currently backwards (in case there is a pingpong or reverse loop defined).
418 file_offset_t loop_cycles_left; ///< How many times the loop has still to be passed, this value will be decremented with each loop cycle.
419 };
420
421 /**
422 * Defines behavior options for envelope generators (gig format extension).
423 *
424 * These options allow to override the precise default behavior of the
425 * envelope generators' state machines.
426 *
427 * @b Note: These EG options are an extension to the original gig file
428 * format, so these options are not available with the original
429 * Gigasampler/GigaStudio software! Currently only LinuxSampler and gigedit
430 * support these EG options!
431 *
432 * Adding these options to the original gig file format was necessary,
433 * because the precise state machine behavior of envelope generators of the
434 * gig format (and thus the default EG behavior if not explicitly overridden
435 * here) deviates from common, expected behavior of envelope generators in
436 * general, if i.e. compared with EGs of hardware synthesizers. For example
437 * with the gig format, the attack and decay stages will be aborted as soon
438 * as a note-off is received. Most other EG implementations in the industry
439 * however always run the attack and decay stages to their full duration,
440 * even if an early note-off arrives. The latter behavior is intentionally
441 * implemented in most other products, because it is required to resemble
442 * percussive sounds in a realistic manner.
443 */
444 struct eg_opt_t {
445 bool AttackCancel; ///< Whether the "attack" stage is cancelled when receiving a note-off (default: @c true).
446 bool AttackHoldCancel; ///< Whether the "attack hold" stage is cancelled when receiving a note-off (default: @c true).
447 bool Decay1Cancel; ///< Whether the "decay 1" stage is cancelled when receiving a note-off (default: @c true).
448 bool Decay2Cancel; ///< Whether the "decay 2" stage is cancelled when receiving a note-off (default: @c true).
449 bool ReleaseCancel; ///< Whether the "release" stage is cancelled when receiving a note-on (default: @c true).
450
451 eg_opt_t();
452 void serialize(Serialization::Archive* archive);
453 };
454
455 /** @brief Defines behaviour of release triggered sample(s) on sustain pedal up event.
456 *
457 * This option defines whether a sustain pedal up event (CC#64) would cause
458 * release triggered samples to be played (if any).
459 *
460 * @b Note: This option is an extension to the original gig file format,
461 * so this option is not available with the original Gigasampler/GigaStudio
462 * software! Currently only LinuxSampler and gigedit support this option!
463 *
464 * By default (which equals the original Gigasampler/GigaStudio behaviour)
465 * no release triggered samples are played if the sustain pedal is released.
466 * So usually in the gig format release triggered samples are only played
467 * on MIDI note-off events.
468 *
469 * @see enumCount(), enumKey(), enumKeys(), enumValue()
470 */
471 GIG_DECLARE_ENUM(sust_rel_trg_t,
472 sust_rel_trg_none = 0x00, /**< No release triggered sample(s) are played on sustain pedal up (default). */
473 sust_rel_trg_maxvelocity = 0x01, /**< Play release trigger sample(s) on sustain pedal up, and simply use 127 as MIDI velocity for playback. */
474 sust_rel_trg_keyvelocity = 0x02 /**< Play release trigger sample(s) on sustain pedal up, and use the key`s last MIDI note-on velocity for playback. */
475 );
476
477 // just symbol prototyping
478 class File;
479 class Instrument;
480 class Sample;
481 class Region;
482 class Group;
483 class Script;
484 class ScriptGroup;
485
486 /** @brief Encapsulates articulation informations of a dimension region.
487 *
488 * This is the most important data object of the Gigasampler / GigaStudio
489 * format. A DimensionRegion provides the link to the sample to be played
490 * and all required articulation informations to be interpreted for playing
491 * back the sample and processing it appropriately by the sampler software.
492 * Every Region of a Gigasampler Instrument has at least one dimension
493 * region (exactly then when the Region has no dimension defined). Many
494 * Regions though provide more than one DimensionRegion, which reflect
495 * different playing "cases". For example a different sample might be played
496 * if a certain pedal is pressed down, or if the note was triggered with
497 * different velocity.
498 *
499 * One instance of a DimensionRegion reflects exactly one particular case
500 * while playing an instrument (for instance "note between C3 and E3 was
501 * triggered AND note on velocity was between 20 and 42 AND modulation wheel
502 * controller is between 80 and 127). The DimensionRegion defines what to do
503 * under that one particular case, that is which sample to play back and how
504 * to play that sample back exactly and how to process it. So a
505 * DimensionRegion object is always linked to exactly one sample. It may
506 * however also link to no sample at all, for defining a "silence" case
507 * where nothing shall be played (for example when note on velocity was
508 * below 6).
509 *
510 * Note that a DimensionRegion object only defines "what to do", but it does
511 * not define "when to do it". To actually resolve which DimensionRegion to
512 * pick under which situation, you need to refer to the DimensionRegions'
513 * parent Region object. The Region object contains the necessary
514 * "Dimension" definitions, which in turn define which DimensionRegion is
515 * associated with which playing case exactly.
516 *
517 * The Gigasampler/GigaStudio format defines 3 Envelope Generators and 3
518 * Low Frequency Oscillators:
519 *
520 * - EG1 and LFO1, both controlling sample amplitude
521 * - EG2 and LFO2, both controlling filter cutoff frequency
522 * - EG3 and LFO3, both controlling sample pitch
523 *
524 * Since the gig format was designed as extension to the DLS file format,
525 * this class is derived from the DLS::Sampler class. So also refer to
526 * DLS::Sampler for additional informations, class attributes and methods.
527 */
528 class DimensionRegion : protected DLS::Sampler {
529 public:
530 uint8_t VelocityUpperLimit; ///< Defines the upper velocity value limit of a velocity split (only if an user defined limit was set, thus a value not equal to 128/NumberOfSplits, else this value is 0). Only for gig2, for gig3 and above the DimensionUpperLimits are used instead.
531 Sample* pSample; ///< Points to the Sample which is assigned to the dimension region.
532 // Sample Amplitude EG/LFO
533 uint16_t EG1PreAttack; ///< Preattack value of the sample amplitude EG (0 - 1000 permille).
534 double EG1Attack; ///< Attack time of the sample amplitude EG (0.000 - 60.000s).
535 double EG1Decay1; ///< Decay time of the sample amplitude EG (0.000 - 60.000s).
536 double EG1Decay2; ///< Only if <i>EG1InfiniteSustain == false</i>: 2nd decay stage time of the sample amplitude EG (0.000 - 60.000s).
537 bool EG1InfiniteSustain; ///< If <i>true</i>, instead of going into Decay2 phase, Decay1 level will be hold until note will be released.
538 uint16_t EG1Sustain; ///< Sustain value of the sample amplitude EG (0 - 1000 permille).
539 double EG1Release; ///< Release time of the sample amplitude EG (0.000 - 60.000s).
540 bool EG1Hold; ///< If <i>true</i>, Decay1 stage should be postponed until the sample reached the sample loop start.
541 eg1_ctrl_t EG1Controller; ///< MIDI Controller which has influence on sample amplitude EG parameters (attack, decay, release).
542 bool EG1ControllerInvert; ///< Invert values coming from defined EG1 controller.
543 uint8_t EG1ControllerAttackInfluence; ///< Amount EG1 Controller has influence on the EG1 Attack time (0 - 3, where 0 means off).
544 uint8_t EG1ControllerDecayInfluence; ///< Amount EG1 Controller has influence on the EG1 Decay time (0 - 3, where 0 means off).
545 uint8_t EG1ControllerReleaseInfluence; ///< Amount EG1 Controller has influence on the EG1 Release time (0 - 3, where 0 means off).
546 lfo_wave_t LFO1WaveForm; ///< [gig extension]: The fundamental wave form to be used by the amplitude LFO, e.g. sine, triangle, saw, square (default: sine).
547 double LFO1Frequency; ///< Frequency of the sample amplitude LFO (0.10 - 10.00 Hz).
548 double LFO1Phase; ///< [gig extension]: Phase displacement of the amplitude LFO's wave form (0.0�� - 360.0��).
549 uint16_t LFO1InternalDepth; ///< Firm pitch of the sample amplitude LFO (0 - 1200 cents).
550 uint16_t LFO1ControlDepth; ///< Controller depth influencing sample amplitude LFO pitch (0 - 1200 cents).
551 lfo1_ctrl_t LFO1Controller; ///< MIDI Controller which controls sample amplitude LFO.
552 bool LFO1FlipPhase; ///< Inverts the polarity of the sample amplitude LFO wave, so it flips the wave form vertically.
553 bool LFO1Sync; ///< If set to <i>true</i> only one LFO should be used for all voices.
554 // Filter Cutoff Frequency EG/LFO
555 uint16_t EG2PreAttack; ///< Preattack value of the filter cutoff EG (0 - 1000 permille).
556 double EG2Attack; ///< Attack time of the filter cutoff EG (0.000 - 60.000s).
557 double EG2Decay1; ///< Decay time of the filter cutoff EG (0.000 - 60.000s).
558 double EG2Decay2; ///< Only if <i>EG2InfiniteSustain == false</i>: 2nd stage decay time of the filter cutoff EG (0.000 - 60.000s).
559 bool EG2InfiniteSustain; ///< If <i>true</i>, instead of going into Decay2 phase, Decay1 level will be hold until note will be released.
560 uint16_t EG2Sustain; ///< Sustain value of the filter cutoff EG (0 - 1000 permille).
561 double EG2Release; ///< Release time of the filter cutoff EG (0.000 - 60.000s).
562 eg2_ctrl_t EG2Controller; ///< MIDI Controller which has influence on filter cutoff EG parameters (attack, decay, release).
563 bool EG2ControllerInvert; ///< Invert values coming from defined EG2 controller.
564 uint8_t EG2ControllerAttackInfluence; ///< Amount EG2 Controller has influence on the EG2 Attack time (0 - 3, where 0 means off).
565 uint8_t EG2ControllerDecayInfluence; ///< Amount EG2 Controller has influence on the EG2 Decay time (0 - 3, where 0 means off).
566 uint8_t EG2ControllerReleaseInfluence; ///< Amount EG2 Controller has influence on the EG2 Release time (0 - 3, where 0 means off).
567 lfo_wave_t LFO2WaveForm; ///< [gig extension]: The fundamental wave form to be used by the filter cutoff LFO, e.g. sine, triangle, saw, square (default: sine).
568 double LFO2Frequency; ///< Frequency of the filter cutoff LFO (0.10 - 10.00 Hz).
569 double LFO2Phase; ///< [gig extension]: Phase displacement of the filter cutoff LFO's wave form (0.0�� - 360.0��).
570 uint16_t LFO2InternalDepth; ///< Firm pitch of the filter cutoff LFO (0 - 1200 cents).
571 uint16_t LFO2ControlDepth; ///< Controller depth influencing filter cutoff LFO pitch (0 - 1200).
572 lfo2_ctrl_t LFO2Controller; ///< MIDI Controlle which controls the filter cutoff LFO.
573 bool LFO2FlipPhase; ///< Inverts the polarity of the filter cutoff LFO wave, so it flips the wave form vertically.
574 bool LFO2Sync; ///< If set to <i>true</i> only one LFO should be used for all voices.
575 // Sample Pitch EG/LFO
576 double EG3Attack; ///< Attack time of the sample pitch EG (0.000 - 10.000s).
577 int16_t EG3Depth; ///< Depth of the sample pitch EG (-1200 - +1200).
578 lfo_wave_t LFO3WaveForm; ///< [gig extension]: The fundamental wave form to be used by the pitch LFO, e.g. sine, triangle, saw, square (default: sine).
579 double LFO3Frequency; ///< Frequency of the sample pitch LFO (0.10 - 10.00 Hz).
580 double LFO3Phase; ///< [gig extension]: Phase displacement of the pitch LFO's wave form (0.0�� - 360.0��).
581 int16_t LFO3InternalDepth; ///< Firm depth of the sample pitch LFO (-1200 - +1200 cents).
582 int16_t LFO3ControlDepth; ///< Controller depth of the sample pitch LFO (-1200 - +1200 cents).
583 lfo3_ctrl_t LFO3Controller; ///< MIDI Controller which controls the sample pitch LFO.
584 bool LFO3FlipPhase; ///< [gig extension]: Inverts the polarity of the pitch LFO wave, so it flips the wave form vertically (@b NOTE: this setting for LFO3 is a gig format extension; flipping the polarity was only available for LFO1 and LFO2 in the original Gigasampler/GigaStudio software).
585 bool LFO3Sync; ///< If set to <i>true</i> only one LFO should be used for all voices.
586 // Filter
587 bool VCFEnabled; ///< If filter should be used.
588 vcf_type_t VCFType; ///< Defines the general filter characteristic (lowpass, highpass, bandpass, etc.).
589 vcf_cutoff_ctrl_t VCFCutoffController; ///< Specifies which external controller has influence on the filter cutoff frequency. @deprecated Don't alter directly, use SetVCFCutoffController() instead!
590 bool VCFCutoffControllerInvert; ///< Inverts values coming from the defined cutoff controller
591 uint8_t VCFCutoff; ///< Max. cutoff frequency.
592 curve_type_t VCFVelocityCurve; ///< Defines a transformation curve for the incoming velocity values, affecting the VCF. @deprecated Don't alter directly, use SetVCFVelocityCurve() instead!
593 uint8_t VCFVelocityScale; ///< (0-127) Amount velocity controls VCF cutoff frequency (only if no other VCF cutoff controller is defined, otherwise this is the minimum cutoff). @deprecated Don't alter directly, use SetVCFVelocityScale() instead!
594 uint8_t VCFVelocityDynamicRange; ///< 0x04 = lowest, 0x00 = highest . @deprecated Don't alter directly, use SetVCFVelocityDynamicRange() instead!
595 uint8_t VCFResonance; ///< Firm internal filter resonance weight.
596 bool VCFResonanceDynamic; ///< If <i>true</i>: Increases the resonance Q according to changes of controllers that actually control the VCF cutoff frequency (EG2, ext. VCF MIDI controller).
597 vcf_res_ctrl_t VCFResonanceController; ///< Specifies which external controller has influence on the filter resonance Q.
598 bool VCFKeyboardTracking; ///< If <i>true</i>: VCF cutoff frequence will be dependend to the note key position relative to the defined breakpoint value.
599 uint8_t VCFKeyboardTrackingBreakpoint; ///< See VCFKeyboardTracking (0 - 127).
600 // Key Velocity Transformations
601 curve_type_t VelocityResponseCurve; ///< Defines a transformation curve to the incoming velocity values affecting amplitude (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead). @deprecated Don't alter directly, use SetVelocityResponseCurve() instead!
602 uint8_t VelocityResponseDepth; ///< Dynamic range of velocity affecting amplitude (0 - 4) (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead). @deprecated Don't alter directly, use SetVelocityResponseDepth() instead!
603 uint8_t VelocityResponseCurveScaling; ///< 0 - 127 (usually you don't have to interpret this parameter, use GetVelocityAttenuation() instead). @deprecated Don't alter directly, use SetVelocityResponseCurveScaling() instead!
604 curve_type_t ReleaseVelocityResponseCurve; ///< Defines a transformation curve to the incoming release veloctiy values affecting envelope times. @deprecated Don't alter directly, use SetReleaseVelocityResponseCurve() instead!
605 uint8_t ReleaseVelocityResponseDepth; ///< Dynamic range of release velocity affecting envelope time (0 - 4). @deprecated Don't alter directly, use SetReleaseVelocityResponseDepth() instead!
606 uint8_t ReleaseTriggerDecay; ///< 0 - 8
607 // Mix / Layer
608 crossfade_t Crossfade;
609 bool PitchTrack; ///< If <i>true</i>: sample will be pitched according to the key position (this will be disabled for drums for example).
610 dim_bypass_ctrl_t DimensionBypass; ///< If defined, the MIDI controller can switch on/off the dimension in realtime.
611 int8_t Pan; ///< Panorama / Balance (-64..0..63 <-> left..middle..right)
612 bool SelfMask; ///< If <i>true</i>: high velocity notes will stop low velocity notes at the same note, with that you can save voices that wouldn't be audible anyway.
613 attenuation_ctrl_t AttenuationController; ///< MIDI Controller which has influence on the volume level of the sample (or entire sample group).
614 bool InvertAttenuationController; ///< Inverts the values coming from the defined Attenuation Controller.
615 uint8_t AttenuationControllerThreshold;///< 0-127
616 uint8_t ChannelOffset; ///< Audio output where the audio signal of the dimension region should be routed to (0 - 9).
617 bool SustainDefeat; ///< If <i>true</i>: Sustain pedal will not hold a note.
618 bool MSDecode; ///< Gigastudio flag: defines if Mid Side Recordings should be decoded.
619 uint16_t SampleStartOffset; ///< Number of samples the sample start should be moved (0 - 2000).
620 double SampleAttenuation; ///< Sample volume (calculated from DLS::Sampler::Gain)
621 uint8_t DimensionUpperLimits[8]; ///< gig3: defines the upper limit of the dimension values for this dimension region. In case you wondered why this is defined on DimensionRegion level and not on Region level: the zone sizes (upper limits) of the velocity dimension can indeed differ in the individual dimension regions, depending on which zones of the other dimension types are currently selected. So this is exceptional for the velocity dimension only. All other dimension types have the same dimension zone sizes for every single DimensionRegion (of the sample Region).
622 eg_opt_t EG1Options; ///< [gig extension]: Behavior options which should be used for envelope generator 1 (volume amplitude EG).
623 eg_opt_t EG2Options; ///< [gig extension]: Behavior options which should be used for envelope generator 2 (filter cutoff EG).
624 sust_rel_trg_t SustainReleaseTrigger; ///< [gig extension]: Whether a sustain pedal up event shall play release trigger sample.
625 bool NoNoteOffReleaseTrigger; ///< [gig extension]: If @c true then don't play a release trigger sample on MIDI note-off events.
626
627 // derived attributes from DLS::Sampler
628 using DLS::Sampler::UnityNote;
629 using DLS::Sampler::FineTune;
630 using DLS::Sampler::Gain;
631 using DLS::Sampler::SampleLoops;
632 using DLS::Sampler::pSampleLoops;
633
634 // own methods
635 double GetVelocityAttenuation(uint8_t MIDIKeyVelocity);
636 double GetVelocityRelease(uint8_t MIDIKeyVelocity);
637 double GetVelocityCutoff(uint8_t MIDIKeyVelocity);
638 void SetVelocityResponseCurve(curve_type_t curve);
639 void SetVelocityResponseDepth(uint8_t depth);
640 void SetVelocityResponseCurveScaling(uint8_t scaling);
641 void SetReleaseVelocityResponseCurve(curve_type_t curve);
642 void SetReleaseVelocityResponseDepth(uint8_t depth);
643 void SetVCFCutoffController(vcf_cutoff_ctrl_t controller);
644 void SetVCFVelocityCurve(curve_type_t curve);
645 void SetVCFVelocityDynamicRange(uint8_t range);
646 void SetVCFVelocityScale(uint8_t scaling);
647 Region* GetParent() const;
648 // derived methods
649 using DLS::Sampler::AddSampleLoop;
650 using DLS::Sampler::DeleteSampleLoop;
651 // overridden methods
652 virtual void SetGain(int32_t gain) OVERRIDE;
653 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
654 virtual void CopyAssign(const DimensionRegion* orig);
655 protected:
656 uint8_t* VelocityTable; ///< For velocity dimensions with custom defined zone ranges only: used for fast converting from velocity MIDI value to dimension bit number.
657 DimensionRegion(Region* pParent, RIFF::List* _3ewl);
658 DimensionRegion(RIFF::List* _3ewl, const DimensionRegion& src);
659 ~DimensionRegion();
660 void CopyAssign(const DimensionRegion* orig, const std::map<Sample*,Sample*>* mSamples);
661 void serialize(Serialization::Archive* archive);
662 friend class Region;
663 friend class Serialization::Archive;
664 private:
665 typedef enum { ///< Used to decode attenuation, EG1 and EG2 controller
666 // official leverage controllers as they were defined in the original Gigasampler/GigaStudio format:
667 _lev_ctrl_none = 0x00,
668 _lev_ctrl_modwheel = 0x03, ///< Modulation Wheel (MIDI Controller 1)
669 _lev_ctrl_breath = 0x05, ///< Breath Controller (Coarse, MIDI Controller 2)
670 _lev_ctrl_foot = 0x07, ///< Foot Pedal (Coarse, MIDI Controller 4)
671 _lev_ctrl_effect1 = 0x0d, ///< Effect Controller 1 (Coarse, MIDI Controller 12)
672 _lev_ctrl_effect2 = 0x0f, ///< Effect Controller 2 (Coarse, MIDI Controller 13)
673 _lev_ctrl_genpurpose1 = 0x11, ///< General Purpose Controller 1 (Slider, MIDI Controller 16)
674 _lev_ctrl_genpurpose2 = 0x13, ///< General Purpose Controller 2 (Slider, MIDI Controller 17)
675 _lev_ctrl_genpurpose3 = 0x15, ///< General Purpose Controller 3 (Slider, MIDI Controller 18)
676 _lev_ctrl_genpurpose4 = 0x17, ///< General Purpose Controller 4 (Slider, MIDI Controller 19)
677 _lev_ctrl_portamentotime = 0x0b, ///< Portamento Time (Coarse, MIDI Controller 5)
678 _lev_ctrl_sustainpedal = 0x01, ///< Sustain Pedal (MIDI Controller 64)
679 _lev_ctrl_portamento = 0x19, ///< Portamento (MIDI Controller 65)
680 _lev_ctrl_sostenutopedal = 0x1b, ///< Sostenuto Pedal (MIDI Controller 66)
681 _lev_ctrl_softpedal = 0x09, ///< Soft Pedal (MIDI Controller 67)
682 _lev_ctrl_genpurpose5 = 0x1d, ///< General Purpose Controller 5 (Button, MIDI Controller 80)
683 _lev_ctrl_genpurpose6 = 0x1f, ///< General Purpose Controller 6 (Button, MIDI Controller 81)
684 _lev_ctrl_genpurpose7 = 0x21, ///< General Purpose Controller 7 (Button, MIDI Controller 82)
685 _lev_ctrl_genpurpose8 = 0x23, ///< General Purpose Controller 8 (Button, MIDI Controller 83)
686 _lev_ctrl_effect1depth = 0x25, ///< Effect 1 Depth (MIDI Controller 91)
687 _lev_ctrl_effect2depth = 0x27, ///< Effect 2 Depth (MIDI Controller 92)
688 _lev_ctrl_effect3depth = 0x29, ///< Effect 3 Depth (MIDI Controller 93)
689 _lev_ctrl_effect4depth = 0x2b, ///< Effect 4 Depth (MIDI Controller 94)
690 _lev_ctrl_effect5depth = 0x2d, ///< Effect 5 Depth (MIDI Controller 95)
691 _lev_ctrl_channelaftertouch = 0x2f, ///< Channel Key Pressure
692 _lev_ctrl_velocity = 0xff, ///< Key Velocity
693
694 // format extension (these controllers are so far only supported by LinuxSampler & gigedit) they will *NOT* work with Gigasampler/GigaStudio !
695 // (the assigned values here are their official MIDI CC number plus the highest bit set):
696 _lev_ctrl_CC3_EXT = 0x83, ///< MIDI Controller 3 [gig format extension]
697
698 _lev_ctrl_CC6_EXT = 0x86, ///< Data Entry MSB (MIDI Controller 6) [gig format extension]
699 _lev_ctrl_CC7_EXT = 0x87, ///< Channel Volume (MIDI Controller 7) [gig format extension]
700 _lev_ctrl_CC8_EXT = 0x88, ///< Balance (MIDI Controller 8) [gig format extension]
701 _lev_ctrl_CC9_EXT = 0x89, ///< MIDI Controller 9 [gig format extension]
702 _lev_ctrl_CC10_EXT = 0x8a, ///< Pan (MIDI Controller 10) [gig format extension]
703 _lev_ctrl_CC11_EXT = 0x8b, ///< Expression Controller (MIDI Controller 11) [gig format extension]
704
705 _lev_ctrl_CC14_EXT = 0x8e, ///< MIDI Controller 14 [gig format extension]
706 _lev_ctrl_CC15_EXT = 0x8f, ///< MIDI Controller 15 [gig format extension]
707
708 _lev_ctrl_CC20_EXT = 0x94, ///< MIDI Controller 20 [gig format extension]
709 _lev_ctrl_CC21_EXT = 0x95, ///< MIDI Controller 21 [gig format extension]
710 _lev_ctrl_CC22_EXT = 0x96, ///< MIDI Controller 22 [gig format extension]
711 _lev_ctrl_CC23_EXT = 0x97, ///< MIDI Controller 23 [gig format extension]
712 _lev_ctrl_CC24_EXT = 0x98, ///< MIDI Controller 24 [gig format extension]
713 _lev_ctrl_CC25_EXT = 0x99, ///< MIDI Controller 25 [gig format extension]
714 _lev_ctrl_CC26_EXT = 0x9a, ///< MIDI Controller 26 [gig format extension]
715 _lev_ctrl_CC27_EXT = 0x9b, ///< MIDI Controller 27 [gig format extension]
716 _lev_ctrl_CC28_EXT = 0x9c, ///< MIDI Controller 28 [gig format extension]
717 _lev_ctrl_CC29_EXT = 0x9d, ///< MIDI Controller 29 [gig format extension]
718 _lev_ctrl_CC30_EXT = 0x9e, ///< MIDI Controller 30 [gig format extension]
719 _lev_ctrl_CC31_EXT = 0x9f, ///< MIDI Controller 31 [gig format extension]
720
721 _lev_ctrl_CC68_EXT = 0xc4, ///< Legato Footswitch (MIDI Controller 68) [gig format extension]
722 _lev_ctrl_CC69_EXT = 0xc5, ///< Hold 2 (MIDI Controller 69) [gig format extension]
723 _lev_ctrl_CC70_EXT = 0xc6, ///< Sound Ctrl. 1 - Sound Variation (MIDI Controller 70) [gig format extension]
724 _lev_ctrl_CC71_EXT = 0xc7, ///< Sound Ctrl. 2 - Timbre (MIDI Controller 71) [gig format extension]
725 _lev_ctrl_CC72_EXT = 0xc8, ///< Sound Ctrl. 3 - Release Time (MIDI Controller 72) [gig format extension]
726 _lev_ctrl_CC73_EXT = 0xc9, ///< Sound Ctrl. 4 - Attack Time (MIDI Controller 73) [gig format extension]
727 _lev_ctrl_CC74_EXT = 0xca, ///< Sound Ctrl. 5 - Brightness (MIDI Controller 74) [gig format extension]
728 _lev_ctrl_CC75_EXT = 0xcb, ///< Sound Ctrl. 6 - Decay Time (MIDI Controller 75) [gig format extension]
729 _lev_ctrl_CC76_EXT = 0xcc, ///< Sound Ctrl. 7 - Vibrato Rate (MIDI Controller 76) [gig format extension]
730 _lev_ctrl_CC77_EXT = 0xcd, ///< Sound Ctrl. 8 - Vibrato Depth (MIDI Controller 77) [gig format extension]
731 _lev_ctrl_CC78_EXT = 0xce, ///< Sound Ctrl. 9 - Vibrato Delay (MIDI Controller 78) [gig format extension]
732 _lev_ctrl_CC79_EXT = 0xcf, ///< Sound Ctrl. 10 (MIDI Controller 79) [gig format extension]
733
734 _lev_ctrl_CC84_EXT = 0xd4, ///< Portamento Control (MIDI Controller 84) [gig format extension]
735 _lev_ctrl_CC85_EXT = 0xd5, ///< MIDI Controller 85 [gig format extension]
736 _lev_ctrl_CC86_EXT = 0xd6, ///< MIDI Controller 86 [gig format extension]
737 _lev_ctrl_CC87_EXT = 0xd7, ///< MIDI Controller 87 [gig format extension]
738
739 _lev_ctrl_CC89_EXT = 0xd9, ///< MIDI Controller 89 [gig format extension]
740 _lev_ctrl_CC90_EXT = 0xda, ///< MIDI Controller 90 [gig format extension]
741
742 _lev_ctrl_CC96_EXT = 0xe0, ///< Data Increment (MIDI Controller 96) [gig format extension]
743 _lev_ctrl_CC97_EXT = 0xe1, ///< Data Decrement (MIDI Controller 97) [gig format extension]
744
745 _lev_ctrl_CC102_EXT = 0xe6, ///< MIDI Controller 102 [gig format extension]
746 _lev_ctrl_CC103_EXT = 0xe7, ///< MIDI Controller 103 [gig format extension]
747 _lev_ctrl_CC104_EXT = 0xe8, ///< MIDI Controller 104 [gig format extension]
748 _lev_ctrl_CC105_EXT = 0xe9, ///< MIDI Controller 105 [gig format extension]
749 _lev_ctrl_CC106_EXT = 0xea, ///< MIDI Controller 106 [gig format extension]
750 _lev_ctrl_CC107_EXT = 0xeb, ///< MIDI Controller 107 [gig format extension]
751 _lev_ctrl_CC108_EXT = 0xec, ///< MIDI Controller 108 [gig format extension]
752 _lev_ctrl_CC109_EXT = 0xed, ///< MIDI Controller 109 [gig format extension]
753 _lev_ctrl_CC110_EXT = 0xee, ///< MIDI Controller 110 [gig format extension]
754 _lev_ctrl_CC111_EXT = 0xef, ///< MIDI Controller 111 [gig format extension]
755 _lev_ctrl_CC112_EXT = 0xf0, ///< MIDI Controller 112 [gig format extension]
756 _lev_ctrl_CC113_EXT = 0xf1, ///< MIDI Controller 113 [gig format extension]
757 _lev_ctrl_CC114_EXT = 0xf2, ///< MIDI Controller 114 [gig format extension]
758 _lev_ctrl_CC115_EXT = 0xf3, ///< MIDI Controller 115 [gig format extension]
759 _lev_ctrl_CC116_EXT = 0xf4, ///< MIDI Controller 116 [gig format extension]
760 _lev_ctrl_CC117_EXT = 0xf5, ///< MIDI Controller 117 [gig format extension]
761 _lev_ctrl_CC118_EXT = 0xf6, ///< MIDI Controller 118 [gig format extension]
762 _lev_ctrl_CC119_EXT = 0xf7 ///< MIDI Controller 119 [gig format extension]
763 } _lev_ctrl_t;
764 typedef std::map<uint32_t, double*> VelocityTableMap;
765
766 static size_t Instances; ///< Number of DimensionRegion instances.
767 static VelocityTableMap* pVelocityTables; ///< Contains the tables corresponding to the various velocity parameters (VelocityResponseCurve and VelocityResponseDepth).
768 double* pVelocityAttenuationTable; ///< Points to the velocity table corresponding to the velocity parameters of this DimensionRegion.
769 double* pVelocityReleaseTable; ///< Points to the velocity table corresponding to the release velocity parameters of this DimensionRegion
770 double* pVelocityCutoffTable; ///< Points to the velocity table corresponding to the filter velocity parameters of this DimensionRegion
771 Region* pRegion;
772
773 leverage_ctrl_t DecodeLeverageController(_lev_ctrl_t EncodedController);
774 _lev_ctrl_t EncodeLeverageController(leverage_ctrl_t DecodedController);
775 double* GetReleaseVelocityTable(curve_type_t releaseVelocityResponseCurve, uint8_t releaseVelocityResponseDepth);
776 double* GetCutoffVelocityTable(curve_type_t vcfVelocityCurve, uint8_t vcfVelocityDynamicRange, uint8_t vcfVelocityScale, vcf_cutoff_ctrl_t vcfCutoffController);
777 double* GetVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);
778 double* CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling);
779 bool UsesAnyGigFormatExtension() const;
780 };
781
782 /** @brief Encapsulates sample waves of Gigasampler/GigaStudio files used for playback.
783 *
784 * This class provides access to the actual audio sample data of a
785 * Gigasampler/GigaStudio file. Along to the actual sample data, it also
786 * provides access to the sample's meta informations like bit depth,
787 * sample rate, encoding type, but also loop informations. The latter may be
788 * used by instruments for resembling sounds with arbitary note lengths.
789 *
790 * In case you created a new sample with File::AddSample(), you should
791 * first update all attributes with the desired meta informations
792 * (amount of channels, bit depth, sample rate, etc.), then call
793 * Resize() with the desired sample size, followed by File::Save(), this
794 * will create the mandatory RIFF chunk which will hold the sample wave
795 * data and / or resize the file so you will be able to Write() the
796 * sample data directly to disk.
797 *
798 * @e Caution: for gig synthesis, most looping relevant information are
799 * retrieved from the respective DimensionRegon instead from the Sample
800 * itself. This was made for allowing different loop definitions for the
801 * same sample under different conditions.
802 *
803 * Since the gig format was designed as extension to the DLS file format,
804 * this class is derived from the DLS::Sample class. So also refer to
805 * DLS::Sample for additional informations, class attributes and methods.
806 */
807 class Sample : public DLS::Sample {
808 public:
809 uint32_t Manufacturer; ///< Specifies the MIDI Manufacturer's Association (MMA) Manufacturer code for the sampler intended to receive this file's waveform. If no particular manufacturer is to be specified, a value of 0 should be used.
810 uint32_t Product; ///< Specifies the MIDI model ID defined by the manufacturer corresponding to the Manufacturer field. If no particular manufacturer's product is to be specified, a value of 0 should be used.
811 uint32_t SamplePeriod; ///< Specifies the duration of time that passes during the playback of one sample in nanoseconds (normally equal to 1 / Samples Per Second, where Samples Per Second is the value found in the format chunk), don't bother to update this attribute, it won't be saved.
812 uint32_t MIDIUnityNote; ///< Specifies the musical note at which the sample will be played at it's original sample rate.
813 uint32_t FineTune; ///< Specifies the fraction of a semitone up from the specified MIDI unity note field. A value of 0x80000000 means 1/2 semitone (50 cents) and a value of 0x00000000 means no fine tuning between semitones.
814 smpte_format_t SMPTEFormat; ///< Specifies the Society of Motion Pictures and Television E time format used in the following <i>SMPTEOffset</i> field. If a value of 0 is set, <i>SMPTEOffset</i> should also be set to 0.
815 uint32_t SMPTEOffset; ///< The SMPTE Offset value specifies the time offset to be used for the synchronization / calibration to the first sample in the waveform. This value uses a format of 0xhhmmssff where hh is a signed value that specifies the number of hours (-23 to 23), mm is an unsigned value that specifies the number of minutes (0 to 59), ss is an unsigned value that specifies the number of seconds (0 to 59) and ff is an unsigned value that specifies the number of frames (0 to -1).
816 uint32_t Loops; ///< @e Caution: Use the respective field in the DimensionRegion instead of this one! (Intended purpose: Number of defined sample loops. So far only seen single loops in gig files - please report if you encounter more!)
817 uint32_t LoopID; ///< Specifies the unique ID that corresponds to one of the defined cue points in the cue point list (only if Loops > 0), as the Gigasampler format only allows one loop definition at the moment, this attribute isn't really useful for anything.
818 loop_type_t LoopType; ///< @e Caution: Use the respective field in the DimensionRegion instead of this one! (Intended purpose: The type field defines how the waveform samples will be looped.)
819 uint32_t LoopStart; ///< @e Caution: Use the respective field in the DimensionRegion instead of this one! (Intended purpose: The start value specifies the offset [in sample points] in the waveform data of the first sample to be played in the loop [only if Loops > 0].)
820 uint32_t LoopEnd; ///< @e Caution: Use the respective field in the DimensionRegion instead of this one! (Intended purpose: The end value specifies the offset [in sample points] in the waveform data which represents the end of the loop [only if Loops > 0].)
821 uint32_t LoopSize; ///< @e Caution: Use the respective fields in the DimensionRegion instead of this one! (Intended purpose: Length of the looping area [in sample points] which is equivalent to @code LoopEnd - LoopStart @endcode.)
822 uint32_t LoopFraction; ///< The fractional value specifies a fraction of a sample at which to loop. This allows a loop to be fine tuned at a resolution greater than one sample. A value of 0 means no fraction, a value of 0x80000000 means 1/2 of a sample length. 0xFFFFFFFF is the smallest fraction of a sample that can be represented.
823 uint32_t LoopPlayCount; ///< Number of times the loop should be played (a value of 0 = infinite).
824 bool Compressed; ///< If the sample wave is compressed (probably just interesting for instrument and sample editors, as this library already handles the decompression in it's sample access methods anyway).
825 uint32_t TruncatedBits; ///< For 24-bit compressed samples only: number of bits truncated during compression (0, 4 or 6)
826 bool Dithered; ///< For 24-bit compressed samples only: if dithering was used during compression with bit reduction
827
828 // own methods
829 buffer_t LoadSampleData();
830 buffer_t LoadSampleData(file_offset_t SampleCount);
831 buffer_t LoadSampleDataWithNullSamplesExtension(uint NullSamplesCount);
832 buffer_t LoadSampleDataWithNullSamplesExtension(file_offset_t SampleCount, uint NullSamplesCount);
833 buffer_t GetCache();
834 // own static methods
835 static buffer_t CreateDecompressionBuffer(file_offset_t MaxReadSize);
836 static void DestroyDecompressionBuffer(buffer_t& DecompressionBuffer);
837 // overridden methods
838 void ReleaseSampleData();
839 void Resize(file_offset_t NewSize);
840 file_offset_t SetPos(file_offset_t SampleCount, RIFF::stream_whence_t Whence = RIFF::stream_start);
841 file_offset_t GetPos() const;
842 file_offset_t Read(void* pBuffer, file_offset_t SampleCount, buffer_t* pExternalDecompressionBuffer = NULL);
843 file_offset_t ReadAndLoop(void* pBuffer, file_offset_t SampleCount, playback_state_t* pPlaybackState, DimensionRegion* pDimRgn, buffer_t* pExternalDecompressionBuffer = NULL);
844 file_offset_t Write(void* pBuffer, file_offset_t SampleCount);
845 Group* GetGroup() const;
846 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
847 void CopyAssignMeta(const Sample* orig);
848 void CopyAssignWave(const Sample* orig);
849 uint32_t GetWaveDataCRC32Checksum();
850 bool VerifyWaveData(uint32_t* pActually = NULL);
851 protected:
852 static size_t Instances; ///< Number of instances of class Sample.
853 static buffer_t InternalDecompressionBuffer; ///< Buffer used for decompression as well as for truncation of 24 Bit -> 16 Bit samples.
854 Group* pGroup; ///< pointer to the Group this sample belongs to (always not-NULL)
855 file_offset_t FrameOffset; ///< Current offset (sample points) in current sample frame (for decompression only).
856 file_offset_t* FrameTable; ///< For positioning within compressed samples only: stores the offset values for each frame.
857 file_offset_t SamplePos; ///< For compressed samples only: stores the current position (in sample points).
858 file_offset_t SamplesInLastFrame; ///< For compressed samples only: length of the last sample frame.
859 file_offset_t WorstCaseFrameSize; ///< For compressed samples only: size (in bytes) of the largest possible sample frame.
860 file_offset_t SamplesPerFrame; ///< For compressed samples only: number of samples in a full sample frame.
861 buffer_t RAMCache; ///< Buffers samples (already uncompressed) in RAM.
862 unsigned long FileNo; ///< File number (> 0 when sample is stored in an extension file, 0 when it's in the gig)
863 RIFF::Chunk* pCk3gix;
864 RIFF::Chunk* pCkSmpl;
865 uint32_t crc; ///< Reflects CRC-32 checksum of the raw sample data at the last time when the sample's raw wave form data has been modified consciously by the user by calling Write().
866
867 Sample(File* pFile, RIFF::List* waveList, file_offset_t WavePoolOffset, unsigned long fileNo = 0, int index = -1);
868 ~Sample();
869 uint32_t CalculateWaveDataChecksum();
870
871 // Guess size (in bytes) of a compressed sample
872 inline file_offset_t GuessSize(file_offset_t samples) {
873 // 16 bit: assume all frames are compressed - 1 byte
874 // per sample and 5 bytes header per 2048 samples
875
876 // 24 bit: assume next best compression rate - 1.5
877 // bytes per sample and 13 bytes header per 256
878 // samples
879 const file_offset_t size =
880 BitDepth == 24 ? samples + (samples >> 1) + (samples >> 8) * 13
881 : samples + (samples >> 10) * 5;
882 // Double for stereo and add one worst case sample
883 // frame
884 return (Channels == 2 ? size << 1 : size) + WorstCaseFrameSize;
885 }
886
887 // Worst case amount of sample points that can be read with the
888 // given decompression buffer.
889 inline file_offset_t WorstCaseMaxSamples(buffer_t* pDecompressionBuffer) {
890 return (file_offset_t) ((float)pDecompressionBuffer->Size / (float)WorstCaseFrameSize * (float)SamplesPerFrame);
891 }
892 private:
893 void ScanCompressedSample();
894 friend class File;
895 friend class Region;
896 friend class Group; // allow to modify protected member pGroup
897 };
898
899 // TODO: <3dnl> list not used yet - not important though (just contains optional descriptions for the dimensions)
900 /** @brief Defines Region information of a Gigasampler/GigaStudio instrument.
901 *
902 * A Region reflects a consecutive area (key range) on the keyboard. The
903 * individual regions in the gig format may not overlap with other regions
904 * (of the same instrument that is). Further, in the gig format a Region is
905 * merely a container for DimensionRegions (a.k.a. "Cases"). The Region
906 * itself does not provide the sample mapping or articulation informations
907 * used, even though the data structures of regions indeed provide such
908 * informations. The latter is however just of historical nature, because
909 * the gig file format was derived from the DLS file format.
910 *
911 * Each Region consists of at least one or more DimensionRegions. The actual
912 * amount of DimensionRegions depends on which kind of "dimensions" are
913 * defined for this region, and on the split / zone amount for each of those
914 * dimensions.
915 *
916 * Since the gig format was designed as extension to the DLS file format,
917 * this class is derived from the DLS::Region class. So also refer to
918 * DLS::Region for additional informations, class attributes and methods.
919 */
920 class Region : public DLS::Region {
921 public:
922 unsigned int Dimensions; ///< Number of defined dimensions, do not alter!
923 dimension_def_t pDimensionDefinitions[8]; ///< Defines the five (gig2) or eight (gig3) possible dimensions (the dimension's controller and number of bits/splits). Use AddDimension() and DeleteDimension() to create a new dimension or delete an existing one.
924 uint32_t DimensionRegions; ///< Total number of DimensionRegions this Region contains, do not alter!
925 DimensionRegion* pDimensionRegions[256]; ///< Pointer array to the 32 (gig2) or 256 (gig3) possible dimension regions (reflects NULL for dimension regions not in use). Avoid to access the array directly and better use GetDimensionRegionByValue() instead, but of course in some cases it makes sense to use the array (e.g. iterating through all DimensionRegions). Use AddDimension() and DeleteDimension() to create a new dimension or delete an existing one (which will create or delete the respective dimension region(s) automatically).
926 unsigned int Layers; ///< Amount of defined layers (1 - 32). A value of 1 actually means no layering, a value > 1 means there is Layer dimension. The same information can of course also be obtained by accessing pDimensionDefinitions. Do not alter this value!
927
928 // own methods
929 DimensionRegion* GetDimensionRegionByValue(const uint DimValues[8]);
930 DimensionRegion* GetDimensionRegionByBit(const uint8_t DimBits[8]);
931 int GetDimensionRegionIndexByValue(const uint DimValues[8]);
932 Sample* GetSample();
933 void AddDimension(dimension_def_t* pDimDef);
934 void DeleteDimension(dimension_def_t* pDimDef);
935 dimension_def_t* GetDimensionDefinition(dimension_t type);
936 void DeleteDimensionZone(dimension_t type, int zone);
937 void SplitDimensionZone(dimension_t type, int zone);
938 void SetDimensionType(dimension_t oldType, dimension_t newType);
939 // overridden methods
940 virtual void SetKeyRange(uint16_t Low, uint16_t High) OVERRIDE;
941 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
942 virtual void CopyAssign(const Region* orig);
943 protected:
944 Region(Instrument* pInstrument, RIFF::List* rgnList);
945 void LoadDimensionRegions(RIFF::List* rgn);
946 void UpdateVelocityTable();
947 Sample* GetSampleFromWavePool(unsigned int WavePoolTableIndex, progress_t* pProgress = NULL);
948 void CopyAssign(const Region* orig, const std::map<Sample*,Sample*>* mSamples);
949 DimensionRegion* GetDimensionRegionByBit(const std::map<dimension_t,int>& DimCase);
950 ~Region();
951 friend class Instrument;
952 };
953
954 /** @brief Abstract base class for all MIDI rules.
955 *
956 * Note: Instead of using MIDI rules, we recommend you using real-time
957 * instrument scripts instead. Read about the reasons below.
958 *
959 * MIDI Rules (also called "iMIDI rules" or "intelligent MIDI rules") were
960 * introduced with GigaStudio 4 as an attempt to increase the power of
961 * potential user controls over sounds. At that point other samplers already
962 * supported certain powerful user control features, which were not possible
963 * with GigaStudio yet. For example triggering new notes by MIDI CC
964 * controller.
965 *
966 * Such extended features however were usually implemented by other samplers
967 * by requiring the sound designer to write an instrument script which the
968 * designer would then bundle with the respective instrument file. Such
969 * scripts are essentially text files, using a very specific programming
970 * language for the purpose of controlling the sampler in real-time. Since
971 * however musicians are not typically keen to writing such cumbersome
972 * script files, the GigaStudio designers decided to implement such extended
973 * features completely without instrument scripts. Instead they created a
974 * set of rules, which could be defined and altered conveniently by mouse
975 * clicks in GSt's instrument editor application. The downside of this
976 * overall approach however, was that those MIDI rules were very limited in
977 * practice. As sound designer you easily came across the possiblities such
978 * MIDI rules were able to offer.
979 *
980 * Due to such severe use case constraints, support for MIDI rules is quite
981 * limited in libgig. At the moment only the "Control Trigger", "Alternator"
982 * and the "Legato" MIDI rules are supported by libgig. Consequently the
983 * graphical instrument editor application gigedit just supports the
984 * "Control Trigger" and "Legato" MIDI rules, and LinuxSampler even does not
985 * support any MIDI rule type at all and LinuxSampler probably will not
986 * support MIDI rules in future either.
987 *
988 * Instead of using MIDI rules, we introduced real-time instrument scripts
989 * as extension to the original GigaStudio file format. This script based
990 * solution is much more powerful than MIDI rules and is already supported
991 * by libgig, gigedit and LinuxSampler.
992 *
993 * @deprecated Just provided for backward compatiblity, use Script for new
994 * instruments instead.
995 */
996 class MidiRule {
997 public:
998 virtual ~MidiRule() { }
999 protected:
1000 virtual void UpdateChunks(uint8_t* pData) const = 0;
1001 friend class Instrument;
1002 };
1003
1004 /** @brief MIDI rule for triggering notes by control change events.
1005 *
1006 * A "Control Trigger MIDI rule" allows to trigger new notes by sending MIDI
1007 * control change events to the sampler.
1008 *
1009 * Note: "Control Trigger" MIDI rules are only supported by gigedit, but not
1010 * by LinuxSampler. We recommend you using real-time instrument scripts
1011 * instead. Read more about the details and reasons for this in the
1012 * description of the MidiRule base class.
1013 *
1014 * @deprecated Just provided for backward compatiblity, use Script for new
1015 * instruments instead. See description of MidiRule for details.
1016 */
1017 class MidiRuleCtrlTrigger : public MidiRule {
1018 public:
1019 uint8_t ControllerNumber; ///< MIDI controller number.
1020 uint8_t Triggers; ///< Number of triggers.
1021 struct trigger_t {
1022 uint8_t TriggerPoint; ///< The CC value to pass for the note to be triggered.
1023 bool Descending; ///< If the change in CC value should be downwards.
1024 uint8_t VelSensitivity; ///< How sensitive the velocity should be to the speed of the controller change.
1025 uint8_t Key; ///< Key to trigger.
1026 bool NoteOff; ///< If a note off should be triggered instead of a note on.
1027 uint8_t Velocity; ///< Velocity of the note to trigger. 255 means that velocity should depend on the speed of the controller change.
1028 bool OverridePedal; ///< If a note off should be triggered even if the sustain pedal is down.
1029 } pTriggers[32];
1030
1031 protected:
1032 MidiRuleCtrlTrigger(RIFF::Chunk* _3ewg);
1033 MidiRuleCtrlTrigger();
1034 void UpdateChunks(uint8_t* pData) const OVERRIDE;
1035 friend class Instrument;
1036 };
1037
1038 /** @brief MIDI rule for instruments with legato samples.
1039 *
1040 * A "Legato MIDI rule" allows playing instruments resembling the legato
1041 * playing technique. In the past such legato articulations were tried to be
1042 * simulated by pitching the samples of the instrument. However since
1043 * usually a high amount of pitch is needed for legatos, this always sounded
1044 * very artificial and unrealistic. The "Legato MIDI rule" thus uses another
1045 * approach. Instead of pitching the samples, it allows the sound designer
1046 * to bundle separate, additional samples for the individual legato
1047 * situations and the legato rules defined which samples to be played in
1048 * which situation.
1049 *
1050 * Note: "Legato MIDI rules" are only supported by gigedit, but not
1051 * by LinuxSampler. We recommend you using real-time instrument scripts
1052 * instead. Read more about the details and reasons for this in the
1053 * description of the MidiRule base class.
1054 *
1055 * @deprecated Just provided for backward compatiblity, use Script for new
1056 * instruments instead. See description of MidiRule for details.
1057 */
1058 class MidiRuleLegato : public MidiRule {
1059 public:
1060 uint8_t LegatoSamples; ///< Number of legato samples per key in each direction (always 12)
1061 bool BypassUseController; ///< If a controller should be used to bypass the sustain note
1062 uint8_t BypassKey; ///< Key to be used to bypass the sustain note
1063 uint8_t BypassController; ///< Controller to be used to bypass the sustain note
1064 uint16_t ThresholdTime; ///< Maximum time (ms) between two notes that should be played legato
1065 uint16_t ReleaseTime; ///< Release time
1066 range_t KeyRange; ///< Key range for legato notes
1067 uint8_t ReleaseTriggerKey; ///< Key triggering release samples
1068 uint8_t AltSustain1Key; ///< Key triggering alternate sustain samples
1069 uint8_t AltSustain2Key; ///< Key triggering a second set of alternate sustain samples
1070
1071 protected:
1072 MidiRuleLegato(RIFF::Chunk* _3ewg);
1073 MidiRuleLegato();
1074 void UpdateChunks(uint8_t* pData) const OVERRIDE;
1075 friend class Instrument;
1076 };
1077
1078 /** @brief MIDI rule to automatically cycle through specified sequences of different articulations.
1079 *
1080 * The instrument must be using the smartmidi dimension.
1081 *
1082 * Note: "Alternator" MIDI rules are neither supported by gigedit nor by
1083 * LinuxSampler. We recommend you using real-time instrument scripts
1084 * instead. Read more about the details and reasons for this in the
1085 * description of the MidiRule base class.
1086 *
1087 * @deprecated Just provided for backward compatiblity, use Script for new
1088 * instruments instead. See description of MidiRule for details.
1089 */
1090 class MidiRuleAlternator : public MidiRule {
1091 public:
1092 uint8_t Articulations; ///< Number of articulations in the instrument
1093 String pArticulations[32]; ///< Names of the articulations
1094
1095 range_t PlayRange; ///< Key range of the playable keys in the instrument
1096
1097 uint8_t Patterns; ///< Number of alternator patterns
1098 struct pattern_t {
1099 String Name; ///< Name of the pattern
1100 int Size; ///< Number of steps in the pattern
1101 const uint8_t& operator[](int i) const { /// Articulation to play
1102 return data[i];
1103 }
1104 uint8_t& operator[](int i) {
1105 return data[i];
1106 }
1107 private:
1108 uint8_t data[32];
1109 } pPatterns[32]; ///< A pattern is a sequence of articulation numbers
1110
1111 typedef enum {
1112 selector_none,
1113 selector_key_switch,
1114 selector_controller
1115 } selector_t;
1116 selector_t Selector; ///< Method by which pattern is chosen
1117 range_t KeySwitchRange; ///< Key range for key switch selector
1118 uint8_t Controller; ///< CC number for controller selector
1119
1120 bool Polyphonic; ///< If alternator should step forward only when all notes are off
1121 bool Chained; ///< If all patterns should be chained together
1122
1123 protected:
1124 MidiRuleAlternator(RIFF::Chunk* _3ewg);
1125 MidiRuleAlternator();
1126 void UpdateChunks(uint8_t* pData) const OVERRIDE;
1127 friend class Instrument;
1128 };
1129
1130 /** @brief A MIDI rule not yet implemented by libgig.
1131 *
1132 * This class is currently used as a place holder by libgig for MIDI rule
1133 * types which are not supported by libgig yet.
1134 *
1135 * Note: Support for missing MIDI rule types are probably never added to
1136 * libgig. We recommend you using real-time instrument scripts instead.
1137 * Read more about the details and reasons for this in the description of
1138 * the MidiRule base class.
1139 *
1140 * @deprecated Just provided for backward compatiblity, use Script for new
1141 * instruments instead. See description of MidiRule for details.
1142 */
1143 class MidiRuleUnknown : public MidiRule {
1144 protected:
1145 MidiRuleUnknown() { }
1146 void UpdateChunks(uint8_t* pData) const OVERRIDE { }
1147 friend class Instrument;
1148 };
1149
1150 /** @brief Real-time instrument script (gig format extension).
1151 *
1152 * Real-time instrument scripts are user supplied small programs which can
1153 * be used by instrument designers to create custom behaviors and features
1154 * not available in the stock sampler engine. Features which might be very
1155 * exotic or specific for the respective instrument.
1156 *
1157 * This is an extension of the GigaStudio format, thus a feature which was
1158 * not available in the GigaStudio 4 software. It is currently only
1159 * supported by LinuxSampler and gigedit. Scripts will not load with the
1160 * original GigaStudio software.
1161 *
1162 * You find more informations about Instrument Scripts on the LinuxSampler
1163 * documentation site:
1164 *
1165 * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/">About Instrument Scripts in General</a>
1166 * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language">Introduction to the NKSP Script Language</a>
1167 * - <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language/Reference/">NKSP Reference Manual</a>
1168 * - <a href="http://doc.linuxsampler.org/Gigedit/Managing_Scripts">Using Instrument Scripts with Gigedit</a>
1169 */
1170 class Script : protected DLS::Storage {
1171 public:
1172 enum Encoding_t {
1173 ENCODING_ASCII = 0 ///< Standard 8 bit US ASCII character encoding (default).
1174 };
1175 enum Compression_t {
1176 COMPRESSION_NONE = 0 ///< Is not compressed at all (default).
1177 };
1178 enum Language_t {
1179 LANGUAGE_NKSP = 0 ///< NKSP stands for "Is Not KSP" (default). Refer to the <a href="http://doc.linuxsampler.org/Instrument_Scripts/NKSP_Language/Reference/">NKSP Reference Manual</a> for details about this script language.
1180 };
1181
1182 String Name; ///< Arbitrary name of the script, which may be displayed i.e. in an instrument editor.
1183 Compression_t Compression; ///< Whether the script was/should be compressed, and if so, which compression algorithm shall be used.
1184 Encoding_t Encoding; ///< Format the script's source code text is encoded with.
1185 Language_t Language; ///< Programming language and dialect the script is written in.
1186 bool Bypass; ///< Global bypass: if enabled, this script shall not be executed by the sampler for any instrument.
1187
1188 String GetScriptAsText();
1189 void SetScriptAsText(const String& text);
1190 void SetGroup(ScriptGroup* pGroup);
1191 ScriptGroup* GetGroup() const;
1192 void CopyAssign(const Script* orig);
1193 protected:
1194 Script(ScriptGroup* group, RIFF::Chunk* ckScri);
1195 virtual ~Script();
1196 void UpdateChunks(progress_t* pProgress) OVERRIDE;
1197 void DeleteChunks() OVERRIDE;
1198 void RemoveAllScriptReferences();
1199 friend class ScriptGroup;
1200 friend class Instrument;
1201 private:
1202 ScriptGroup* pGroup;
1203 RIFF::Chunk* pChunk; ///< 'Scri' chunk
1204 std::vector<uint8_t> data;
1205 uint32_t crc; ///< CRC-32 checksum of the raw script data
1206 };
1207
1208 /** @brief Group of instrument scripts (gig format extension).
1209 *
1210 * This class is simply used to sort a bunch of real-time instrument scripts
1211 * into individual groups. This allows instrument designers and script
1212 * developers to keep scripts in a certain order while working with a larger
1213 * amount of scripts in an instrument editor.
1214 *
1215 * This is an extension of the GigaStudio format, thus a feature which was
1216 * not available in the GigaStudio 4 software. It is currently only
1217 * supported by LinuxSampler and gigedit.
1218 */
1219 class ScriptGroup : protected DLS::Storage {
1220 public:
1221 String Name; ///< Name of this script group. For example to be displayed in an instrument editor.
1222
1223 Script* GetScript(uint index);
1224 Script* AddScript();
1225 void DeleteScript(Script* pScript);
1226 protected:
1227 ScriptGroup(File* file, RIFF::List* lstRTIS);
1228 virtual ~ScriptGroup();
1229 void LoadScripts();
1230 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
1231 virtual void DeleteChunks() OVERRIDE;
1232 friend class Script;
1233 friend class File;
1234 private:
1235 File* pFile;
1236 RIFF::List* pList; ///< 'RTIS' list chunk
1237 std::list<Script*>* pScripts;
1238 };
1239
1240 /** @brief Provides access to a Gigasampler/GigaStudio instrument.
1241 *
1242 * This class provides access to Gigasampler/GigaStudio instruments
1243 * contained in .gig files. A gig instrument is merely a set of keyboard
1244 * ranges (called Region), plus some additional global informations about
1245 * the instrument. The major part of the actual instrument definition used
1246 * for the synthesis of the instrument is contained in the respective Region
1247 * object (or actually in the respective DimensionRegion object being, see
1248 * description of Region for details).
1249 *
1250 * Since the gig format was designed as extension to the DLS file format,
1251 * this class is derived from the DLS::Instrument class. So also refer to
1252 * DLS::Instrument for additional informations, class attributes and
1253 * methods.
1254 */
1255 class Instrument : protected DLS::Instrument {
1256 public:
1257 // derived attributes from DLS::Resource
1258 using DLS::Resource::pInfo;
1259 using DLS::Resource::pDLSID;
1260 // derived attributes from DLS::Instrument
1261 using DLS::Instrument::IsDrum;
1262 using DLS::Instrument::MIDIBank;
1263 using DLS::Instrument::MIDIBankCoarse;
1264 using DLS::Instrument::MIDIBankFine;
1265 using DLS::Instrument::MIDIProgram;
1266 using DLS::Instrument::Regions;
1267 // own attributes
1268 int32_t Attenuation; ///< in dB
1269 uint16_t EffectSend;
1270 int16_t FineTune; ///< in cents
1271 uint16_t PitchbendRange; ///< Number of semitones pitchbend controller can pitch (default is 2).
1272 bool PianoReleaseMode;
1273 range_t DimensionKeyRange; ///< 0-127 (where 0 means C1 and 127 means G9)
1274
1275
1276 // derived methods from DLS::Resource
1277 using DLS::Resource::GetParent;
1278 // overridden methods
1279 Region* GetFirstRegion();
1280 Region* GetNextRegion();
1281 Region* AddRegion();
1282 void DeleteRegion(Region* pRegion);
1283 void MoveTo(Instrument* dst);
1284 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
1285 virtual void CopyAssign(const Instrument* orig);
1286 // own methods
1287 Region* GetRegion(unsigned int Key);
1288 MidiRule* GetMidiRule(int i);
1289 MidiRuleCtrlTrigger* AddMidiRuleCtrlTrigger();
1290 MidiRuleLegato* AddMidiRuleLegato();
1291 MidiRuleAlternator* AddMidiRuleAlternator();
1292 void DeleteMidiRule(int i);
1293 // real-time instrument script methods
1294 Script* GetScriptOfSlot(uint index);
1295 void AddScriptSlot(Script* pScript, bool bypass = false);
1296 void SwapScriptSlots(uint index1, uint index2);
1297 void RemoveScriptSlot(uint index);
1298 void RemoveScript(Script* pScript);
1299 uint ScriptSlotCount() const;
1300 bool IsScriptSlotBypassed(uint index);
1301 void SetScriptSlotBypassed(uint index, bool bBypass);
1302 protected:
1303 Region* RegionKeyTable[128]; ///< fast lookup for the corresponding Region of a MIDI key
1304
1305 Instrument(File* pFile, RIFF::List* insList, progress_t* pProgress = NULL);
1306 ~Instrument();
1307 void CopyAssign(const Instrument* orig, const std::map<Sample*,Sample*>* mSamples);
1308 void UpdateRegionKeyTable();
1309 void LoadScripts();
1310 void UpdateScriptFileOffsets();
1311 friend class File;
1312 friend class Region; // so Region can call UpdateRegionKeyTable()
1313 private:
1314 struct _ScriptPooolEntry {
1315 uint32_t fileOffset;
1316 bool bypass;
1317 };
1318 struct _ScriptPooolRef {
1319 Script* script;
1320 bool bypass;
1321 };
1322 MidiRule** pMidiRules;
1323 std::vector<_ScriptPooolEntry> scriptPoolFileOffsets;
1324 std::vector<_ScriptPooolRef>* pScriptRefs;
1325 };
1326
1327 /** @brief Group of Gigasampler samples
1328 *
1329 * Groups help to organize a huge collection of Gigasampler samples.
1330 * Groups are not concerned at all for the synthesis, but they help
1331 * sound library developers when working on complex instruments with an
1332 * instrument editor (as long as that instrument editor supports it ;-).
1333 *
1334 * A sample is always assigned to exactly one Group. This also means
1335 * there is always at least one Group in a .gig file, no matter if you
1336 * created one yet or not.
1337 */
1338 class Group : public DLS::Storage {
1339 public:
1340 String Name; ///< Stores the name of this Group.
1341
1342 Sample* GetFirstSample();
1343 Sample* GetNextSample();
1344 void AddSample(Sample* pSample);
1345 protected:
1346 Group(File* file, RIFF::Chunk* ck3gnm);
1347 virtual ~Group();
1348 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
1349 virtual void DeleteChunks() OVERRIDE;
1350 void MoveAll();
1351 friend class File;
1352 private:
1353 File* pFile;
1354 RIFF::Chunk* pNameChunk; ///< '3gnm' chunk
1355 };
1356
1357 /** @brief Provides convenient access to Gigasampler/GigaStudio .gig files.
1358 *
1359 * This is the entry class for accesing a Gigasampler/GigaStudio (.gig) file
1360 * with libgig. It allows you to open existing .gig files, modifying them
1361 * and saving them persistently either under the same file name or under a
1362 * different location.
1363 *
1364 * A .gig file is merely a monolithic file. That means samples and the
1365 * defintion of the virtual instruments are contained in the same file. A
1366 * .gig file contains an arbitrary amount of samples, and an arbitrary
1367 * amount of instruments which are referencing those samples. It is also
1368 * possible to store samples in .gig files not being referenced by any
1369 * instrument. This is not an error from the file format's point of view and
1370 * it is actually often used in practice during the design phase of new gig
1371 * instruments.
1372 *
1373 * So on toplevel of the gig file format you have:
1374 *
1375 * - A set of samples (see Sample).
1376 * - A set of virtual instruments (see Instrument).
1377 *
1378 * And as extension to the original GigaStudio format, we added:
1379 *
1380 * - Real-time instrument scripts (see Script).
1381 *
1382 * Note that the latter however is only supported by libgig, gigedit and
1383 * LinuxSampler. Scripts are not supported by the original GigaStudio
1384 * software.
1385 *
1386 * All released Gigasampler/GigaStudio file format versions are supported
1387 * (so from first Gigasampler version up to including GigaStudio 4).
1388 *
1389 * Since the gig format was designed as extension to the DLS file format,
1390 * this class is derived from the DLS::File class. So also refer to
1391 * DLS::File for additional informations, class attributes and methods.
1392 */
1393 class File : protected DLS::File {
1394 public:
1395 static const DLS::version_t VERSION_2;
1396 static const DLS::version_t VERSION_3;
1397 static const DLS::version_t VERSION_4;
1398
1399 // derived attributes from DLS::Resource
1400 using DLS::Resource::pInfo;
1401 using DLS::Resource::pDLSID;
1402 // derived attributes from DLS::File
1403 using DLS::File::pVersion;
1404 using DLS::File::Instruments;
1405
1406 // derived methods from DLS::Resource
1407 using DLS::Resource::GetParent;
1408 // derived methods from DLS::File
1409 using DLS::File::Save;
1410 using DLS::File::GetFileName;
1411 using DLS::File::SetFileName;
1412 using DLS::File::GetRiffFile;
1413 // overridden methods
1414 File();
1415 File(RIFF::File* pRIFF);
1416 Sample* GetFirstSample(progress_t* pProgress = NULL); ///< Returns a pointer to the first <i>Sample</i> object of the file, <i>NULL</i> otherwise.
1417 Sample* GetNextSample(); ///< Returns a pointer to the next <i>Sample</i> object of the file, <i>NULL</i> otherwise.
1418 Sample* GetSample(uint index);
1419 Sample* AddSample();
1420 size_t CountSamples();
1421 void DeleteSample(Sample* pSample);
1422 Instrument* GetFirstInstrument(); ///< Returns a pointer to the first <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
1423 Instrument* GetNextInstrument(); ///< Returns a pointer to the next <i>Instrument</i> object of the file, <i>NULL</i> otherwise.
1424 Instrument* GetInstrument(uint index, progress_t* pProgress = NULL);
1425 Instrument* AddInstrument();
1426 Instrument* AddDuplicateInstrument(const Instrument* orig);
1427 size_t CountInstruments();
1428 void DeleteInstrument(Instrument* pInstrument);
1429 Group* GetFirstGroup(); ///< Returns a pointer to the first <i>Group</i> object of the file, <i>NULL</i> otherwise.
1430 Group* GetNextGroup(); ///< Returns a pointer to the next <i>Group</i> object of the file, <i>NULL</i> otherwise.
1431 Group* GetGroup(uint index);
1432 Group* GetGroup(String name);
1433 Group* AddGroup();
1434 void DeleteGroup(Group* pGroup);
1435 void DeleteGroupOnly(Group* pGroup);
1436 void SetAutoLoad(bool b);
1437 bool GetAutoLoad();
1438 void AddContentOf(File* pFile);
1439 ScriptGroup* GetScriptGroup(uint index);
1440 ScriptGroup* GetScriptGroup(const String& name);
1441 ScriptGroup* AddScriptGroup();
1442 void DeleteScriptGroup(ScriptGroup* pGroup);
1443 virtual ~File();
1444 virtual void UpdateChunks(progress_t* pProgress) OVERRIDE;
1445 protected:
1446 // overridden protected methods from DLS::File
1447 virtual void LoadSamples() OVERRIDE;
1448 virtual void LoadInstruments() OVERRIDE;
1449 virtual void LoadGroups();
1450 virtual void UpdateFileOffsets() OVERRIDE;
1451 // own protected methods
1452 virtual void LoadSamples(progress_t* pProgress);
1453 virtual void LoadInstruments(progress_t* pProgress);
1454 virtual void LoadScriptGroups();
1455 void SetSampleChecksum(Sample* pSample, uint32_t crc);
1456 uint32_t GetSampleChecksum(Sample* pSample);
1457 uint32_t GetSampleChecksumByIndex(int index);
1458 bool VerifySampleChecksumTable();
1459 bool RebuildSampleChecksumTable();
1460 int GetWaveTableIndexOf(gig::Sample* pSample);
1461 friend class Region;
1462 friend class Sample;
1463 friend class Instrument;
1464 friend class Group; // so Group can access protected member pRIFF
1465 friend class ScriptGroup; // so ScriptGroup can access protected member pRIFF
1466 private:
1467 std::list<Group*>* pGroups;
1468 std::list<Group*>::iterator GroupsIterator;
1469 bool bAutoLoad;
1470 std::list<ScriptGroup*>* pScriptGroups;
1471 };
1472
1473 /**
1474 * Will be thrown whenever a gig specific error occurs while trying to
1475 * access a Gigasampler File. Note: In your application you should
1476 * better catch for RIFF::Exception rather than this one, except you
1477 * explicitly want to catch and handle gig::Exception, DLS::Exception
1478 * and RIFF::Exception independently, which usually shouldn't be
1479 * necessary though.
1480 */
1481 class Exception : public DLS::Exception {
1482 public:
1483 Exception(String format, ...);
1484 Exception(String format, va_list arg);
1485 void PrintMessage();
1486 protected:
1487 Exception();
1488 };
1489
1490 #if HAVE_RTTI
1491 size_t enumCount(const std::type_info& type);
1492 const char* enumKey(const std::type_info& type, size_t value);
1493 bool enumKey(const std::type_info& type, String key);
1494 const char** enumKeys(const std::type_info& type);
1495 #endif // HAVE_RTTI
1496 size_t enumCount(String typeName);
1497 const char* enumKey(String typeName, size_t value);
1498 bool enumKey(String typeName, String key);
1499 const char** enumKeys(String typeName);
1500 size_t enumValue(String key);
1501
1502 String libraryName();
1503 String libraryVersion();
1504
1505 } // namespace gig
1506
1507 #endif // __GIG_H__
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