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Revision 2106 - (show annotations) (download)
Sun Jul 4 12:50:51 2010 UTC (13 years, 8 months ago) by persson
File size: 34243 byte(s)
* sfz engine: optimized sample lookup
* sfz engine: fixed bug introduced in previous commit: sample lookup
  returned wrong sample

1 Version CVS HEAD (?)
2
3 * packaging changes:
4 - fixed building with newer MinGW-w64
5
6 * general changes:
7 - Refactoring: moved the independent code from
8 the Gigasampler format engine to base classes
9 - command line option '--profile' is currently disabled, since the
10 respective profiling code is currently broken
11 - Introduced support for optional environment variable
12 "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
13 where the sampler shall look for instrument editor plugins
14 (patch by Luis Garrido, slightly modified).
15
16 * Gigasampler format engine:
17 - implemented the "round robin keyboard" dimension
18 - fixed round robin and random dimensions for cases when number of
19 dimension zones is not a power of two
20 - made round robin use a counter for each region instead of each
21 key
22
23 * SFZ format engine:
24 - Initial implementation (not usable yet)
25 - added support for v2 multiple stage envelope generators
26 - added a fine-tuned v1 envelope generator instead of using the
27 one from the gig engine
28 - fixed memory leak and memory handling errors
29 - added support for trigger=first, trigger=legato and sw_previous
30 - allow non-numerical key values ("C#4" for example)
31 - "key" opcode now sets pitch_keycenter too
32 - fixed error when unloading instrument with same sample used by
33 multiple regions
34 - added some opcode aliases, like loopmode for loop_mode, to be
35 more compatible
36 - added support for trigger=release and rt_decay
37 - added support for off_mode=normal
38 - added support for random, seq_position, seq_length and volume
39 - added v1 LFO opcodes to parser (no support in engine yet)
40 - added support for amp_veltrack and amp_velcurve_N
41 - fine-tuned the default velocity curve
42 - added support for transpose
43 - fixed crash when using sw_down/up
44 - improved logic for sw_lokey/hikey/up/down/last
45 - added more v1 aliases to parser
46 - reduced memory usage for sfz data
47 - RT-safeness: avoid malloc in audio thread
48 - fixed a bug that could cause voice stealing to fail
49 - optimized sample lookup
50
51 * SoundFont format engine:
52 - Initial implementation (not usable yet)
53 - RT-safeness: avoid malloc in audio thread
54 - fixed a bug that could cause voice stealing to fail
55
56 * Host plugins:
57 - AU bugfix: failed to destroy its audio/MIDI devices
58 - Listen to all interfaces on Mac OS X (INADDR_ANY)
59 - VST bugfix: If the host called resume() before and after
60 changing sample rate or block size, the number of channels was
61 incorrectly set to two. This caused silence in Cubase 5.
62
63 * MIDI driver:
64 - ALSA MIDI driver supports now "NAME" device parameter, for overriding
65 the ALSA sequencer client name
66
67 * LSCP server:
68 - added support for sending MIDI CC messages via LSCP command
69 "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
70
71 * Bug fixes:
72 - Fixed crash which may occur when MIDI key + transpose is out of range
73
74 Version 1.0.0 (31 July 2009)
75
76 * packaging changes:
77 - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
78 causing e.g. the libgig test to fail when
79 "./configure --disable-jack-driver" was used
80 (patch by Alexis Ballier)
81 - fixed compilation with gcc 4.3
82 - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
83 - fixed configure so it detects x86_64 (#107)
84 - fixes for building with newer MinGW versions
85 - fix for building with bison 2.4 (#111)
86 - fixed building with libgig installed in a non-standard directory
87 - minor fix in configure for mmsystem.h detection on MinGW
88 - Windows: look for editor plugins and Fantasia using base
89 directory of liblinuxsampler dll (look in the same directory and one
90 directory above)
91 - configure script fix: removed unconditional use of SSE
92 - fixed building with sqlite installed in a non-standard directory
93 - when cross-compiling, don't try to create instruments.db
94 - fix for new mingw-w64 version, which has usleep
95
96 * general changes:
97 - bugfix: on some POSIX systems instrument editor plugins refused to
98 load as we used a non-portable Linux specific struct field
99 (fixes bug #70, patch by Ronald Baljeu)
100 - fixed endless loop which occured when loading an instrument editor
101 plugin DLL on Windows systems failed
102 - fixed memory leaks that occurred when liblinuxsampler was unloaded
103 - optimized the SynchronizedConfig class so it doesn't wait
104 unnecessarily long after an update
105 - added support for notifying instrument editors on note-on / note-off
106 events (e.g. to highlight the pressed keys on the virtual keyboard
107 of gigedit)
108 - added support for triggering notes by instrument editors (see above)
109 - be verbose on DLL load errors (on Linux)
110 - fixed di-harmonic triangle LFO implementation (this LFO implementation
111 is only used by very few systems, most pick the int math
112 implementation, which is usually faster)
113 - fixes for audio drivers with varying buffer sizes
114 - experimental support for running LinuxSampler as a DSSI, LV2 and
115 VST plugin
116 - notification events for stream/voice count statistics are now sent
117 only when there are actual changes
118 - added memory ordering constraints to improve stability on
119 multi-core and multi-cpu systems
120 - maximum voices and disk streams can now be altered at runtime
121 - fixed CPU feature detection on x86_64 (maybe fixes #108)
122 - automatic stacktrace mechanism is now turned off by default and can
123 be switched on by command line option "--stacktrace" (the automatic
124 stacktrace mechanism seems to be broken on most systems at the moment)
125 - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
126 a pointer to the launched InstrumentEditor object
127 - added optional 3rd party user data parameter for following
128 liblinuxsampler C++ API methods: InstrumentEditor::Main(),
129 InstrumentEditor::Launch(),
130 InstrumentManager::LaunchInstrumentEditor()
131 - theoretical fix: made SynchronizedConfig follow C++0x memory
132 model more strictly
133 - fixes for using large audio device buffers
134 - Windows: add the installation directory to the DLL search path
135 when loading an editor plugin (solves problems with VST and
136 gigedit on systems with other GTK versions installed)
137
138 * audio driver:
139 - removed the nonsense audio channel constraint (which was hard coded to
140 max. 100 audio channels) for most audio drivers
141 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
142 opposed to the LSCP specs
143 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
144 reflected the wrong value
145 - fixed a memory management bug in ASIO driver
146 - Makefile fix: JACK_CFLAGS wasn't used
147 - JACK: use jack_client_open instead of the deprecated
148 jack_client_new
149 - added (experimental) CoreAudio driver
150 - applied old fixes to the ASIO driver that were included in the
151 previous binary release but accidentally never committed to CVS
152 (fixes #117)
153 - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
154 win64)
155 - VST: added support for sample rate and buffer size changes
156 - VST: close editor (Fantasia) when the VST is removed
157 - VST: avoid opening Fantasia more than once for each VST instance
158 - VST: export main function as "main" on Linux too (fix for
159 energyXT)
160 - VST: changed number of output channels from one stereo to 16
161 stereo
162 - added channel routing, fxsends and midi maps to the settings
163 stored in the plugin state
164 - performance optimization of AudioChannel::MixTo() and
165 AudioChannel::CopyTo() methods using GCC vector exensions
166 (if available)
167 - ASIO fixes: avoid initializing the device twice, avoid throwing
168 exception when getting parameters from a disconnected device
169
170 * MIDI driver:
171 - added JACK MIDI driver
172 - dispatch bank select as ordinary CC as well, the user might seriously
173 want to (mis)use it for some purpose ("fixed" in all current MIDI
174 input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
175 - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
176 CoreMidi or AU
177 - fixed mingw-w64 compilation error in MME driver
178 - made program change handling in MIDI thread real-time safe by
179 moving the logic to a non-RT thread
180 - fixed minor memory leak in ALSA driver
181
182 * instruments database:
183 - avoid time consuming samples scanning when adding instruments
184 to the instruments database
185 - added support for handling lost files in the instruments database
186 - Implemented option for adding instruments in separate directories
187 in the instruments database
188 (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
189 - work-around for missing fnmatch function on Windows to make
190 instrument database compilable
191 - added instrument database support on Windows
192 works with both standalone mode and VST plugin.
193 the instruments DB file is located in
194 %USERPROFILE%\.linuxsampler\instruments.db which allows different
195 databases for each windows user
196 if no DB is present it automatically creates the .linuxsampler subdir
197 and then creates an empty DB
198 - fixed recursive import, which was broken on Windows
199
200 * Gigasampler format engine:
201 - fixed a memory leak that could happen when a channel was deleted
202 while notes were playing
203 - made it possible to load an instrument even if the audio thread
204 isn't running
205 - added partial support for the "Controller Triggered" MIDI rule,
206 enough for piano gigs with pedal noise samples
207 - minor fix: only mark FX sends as being modified if really the
208 respective FX send MIDI controller was used
209 - added support for GM global device volume SysEx message
210 (can be selected at compile time to either apply globally to the
211 whole sampler [default] or only to the sampler channels that are
212 connected to the respective MIDI input port the SysEx message arrived
213 on)
214 - bugfix: notes triggered at position 0 in the audio buffer were
215 sometimes wrongly killed in the same buffer, causing no sound to
216 be played
217 - added support for chromatic / drumkit mode Roland GS Sysex message
218 which is usally used to switch a part between chromatic sounds and
219 drumkit sounds (as opposed to their common default setting of MIDI
220 part 10 being a drumkit part and all other ones chromatic parts), in
221 LS however one can switch between the first 16 MIDI instrument maps
222 defined for the sampler
223 - made it possible to create multiple sample channels even if the
224 audio thread isn't running
225 - fixed crash when removing channel with active voices (#116)
226 - bugfix: on sample reference changes (instrument editor), only
227 un-cache the respective sample if it's really not used by any
228 sampler engine anymore
229 - re-cache samples in case they were changed by an instrument editor,
230 e.g. when a sample was added while playing (#82)
231 - fixed hanging notes which occured when note-off event had the exact
232 same time stamp as the voice's note-on event and occured both in the
233 same audio fragment cycle (fixes bug #112)
234 - added support for the "fine tune" and "pitch bend range"
235 instrument-level gig parameters
236 - fixed minor artifacts in pitch bend handling
237 - added support for GS Reset SysEx message
238 - allow gig files to use unlimited downward pitch shifting
239 - added a limit check for upward pitch shifting
240 - bugfix: sometimes, when playing a note twice fast, the second
241 note was silent
242 - fixed crash happening when a pitch bend event arrived at the
243 same time a new instrument was loading
244
245 * LSCP server:
246 - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
247 react on MIDI data arriving on certain sampler channels (so far only
248 Note-On and Note-Off events are sent via this LSCP event)
249 - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
250 react on MIDI data arriving on certain MIDI input devices (so far only
251 Note-On and Note-Off events are sent via this LSCP event)
252 - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
253 SET DB_INSTRUMENT FILE_PATH
254 - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
255 frontends to send MIDI messages to specific sampler channel
256 - added two additional fields to GET FILE INSTRUMENT INFO command -
257 KEY_BINDINGS and KEYSWITCH_BINDINGS
258 - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
259 was incorrect
260 - Optimized the retrieval of the MIDI instrument mappings
261 - added new LSCP command "SET VOICES" to globally alter the maximum
262 amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
263 be triggered respectively
264 - added new LSCP command "SET STREAMS" to globally alter the maximum
265 amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
266 which will be triggered respectively
267 - bugfix: retry if "select" returns EINTR (this fixes a crash when
268 a gigedit file dialog is opened)
269 - close all connections when LSCPServer is deleted
270 - hard close of all sockets on exit
271 - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
272 driver
273
274 * Bug fixes:
275 - fixed a crash which occurs when removing a sampler channel waiting
276 to start instrument loading after another channel
277 - fixed a crash which occurs when removing a sampler channel with
278 instrument loading in progress (bug #113)
279 - fixed termination caused by uncaught exception when adding MIDI
280 instrument with PERSISTENT load mode
281 - fixed possible iterator invalidations when resetting the sampler
282 - fixed memory leaks when issuing the following LSCP commands:
283 GET AUDIO_OUTPUT_DRIVER INFO
284 GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
285 GET MIDI_INPUT_DRIVER INFO
286 GET MIDI_INPUT_DRIVER_PARAMETER INFO
287 - fixed possible compilation error when sqlite is not present
288 - fixed orphaned pointers when setting maximum voices limit (bug #118)
289 - fixed crash when changing the audio output device of a sampler
290 channel with loaded instrument and start playing notes
291 - fixed endless loop in Engine::SuspendAll() (bug #120)
292 - fixed a low-level atomic load function that was broken on 64-bit
293 PowerPC, which probably could cause crashes on that platform
294 - fixed a memory management error which could cause a crash when a
295 plugin was unloaded
296 - bugfix: two private structs had the same name, which could cause
297 problems if the linker chose the wrong constructor
298 - fixed low-level ConditionServer usage bug that caused lockups on
299 Windows
300
301
302 Version 0.5.1 (6 December 2007)
303
304 * packaging changes:
305 - added autoconf checks for pthread library
306 - added autoconf check for pthread bug found on certain NPTL-enabled
307 glibc versions (see Gentoo bug report #194076)
308 - added autoconf checks for MS Windows
309
310 * general changes:
311 - bugfix: the thread used by an editor plugin didn't die when the
312 editor closed
313 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
314 out all the space. operator--() did not apply size_mask after
315 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
316 order to avoid problems with the _NonVolatileReader functions.
317 - bugfix: Stream.h: added a missing divide by BytesPerSample in
318 GetWriteSpace(). Since this function is currently only used in
319 the stream's qsort() compare function, it didn't trigger any
320 bugs.
321 - Resampler.h, Synthesizer.h: cubic interpolation now works in
322 24bit mode too. Faster method to read 24bit words on little
323 endian machines (x86): replaced 3 byte reads + shifts with a 1
324 unaligned 32bit read and shift
325 - experimental support for MS Windows (MIDI input via MME, AUDIO
326 output via ASIO)
327 - made handling of SIGINT signal (Ctrl-C) a bit more robust
328 - support for monitoring the total number of active disk streams
329 (new LSCP commands: GET TOTAL_STREAM_COUNT,
330 SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
331
332 * AUDIO driver:
333 - added Windows ASIO low latency audio driver
334
335 * MIDI driver:
336 - added MME Windows MIDI driver
337
338 * LSCP server:
339 - added support for Windows style path / filenames, however with
340 forward slash path separators instead of backslash
341 (i.e. "C:/foo/bar.gig")
342 - allow naughty liblscp to send non-string device parameters within
343 apostrophes as well
344 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
345 "LIST FILE INSTRUMENTS <file>" and
346 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
347 about an arbitrary instrument file on the system where the sampler is
348 running on
349
350 Version 0.5.0 (15 October 2007)
351
352 * packaging changes:
353 - config.h is not going to be installed along with liblinuxsampler's
354 API header files anymore
355 - only the API relevant header (and source) files will be exported to
356 the Doxygen API documentation (explicitly listed in Doxyfile.in)
357 - added completely new XCode project files for Mac OSX which is now
358 capable to execute our autoconf environment, thus no need anymore
359 to maintain the compile time configuration file (osx/version.h) for
360 OSX manually (patch by Toshi Nagata)
361 - fixed buggy boolean --enable-foo / --disable-foo configure script
362 parameters
363 - global.h now only covers global definitions that are needed for the
364 C++ API header files, all implementation internal global definitions
365 are now in global_private.h
366 - atomic.h is not exposed to the C++ API anymore
367 - no need to include config.h anymore for using LS's API header files
368 - fixed warnings in API doc generation
369
370 * general changes:
371 - replaced the old, confusing MIDI program change mechanism by a
372 flexible MIDI instrument mapper which allows to map arbitrary
373 (MIDI bank, MIDI program) pairs with arbitrary
374 (engine type, instrument file, file index) triplets which will be
375 loaded on the respective channel when such MIDI program change
376 messages arrive, beside that, each entry allows to define a life-time
377 strategy for the instrument, so the user can define whether the
378 instrument should i.e. be permanently loaded (to be able to switch
379 quickly among sounds) or i.e. loaded just on demand when the
380 respective program change arrives (to safe RAM space), as well as a
381 global volume factor for each entry, so the user can adjust the volume
382 dynamic of his mapped instrument collection without having to modify
383 the instrument files, also one can manage arbitrary amount of such
384 MIDI instrument maps and assign each sampler channel individually
385 a certain map, so that i.e. separation of normal instruments and
386 drumkits is possible
387 - new notification events for tracking changes to audio/MIDI devices,
388 MIDI instrument maps, MIDI instruments, FX sends, global volume.
389 - sampler was limited to load max. 200 instruments in the background
390 due to a constant size RingBuffer FIFO which is now replaced by a
391 dynamic (unlimited) size std::list FIFO
392 - added FX sends, these allow to route audio signals to arbitrary audio
393 output channels for being processed by external effect processors
394 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
395 controllers
396 - global (sampler wide) volume can now be controlled at runtime
397 - Implemented new, improved notification system
398 - fixed compilation errors regarding OSX
399 (patch by Toshi Nagata)
400 - implemented instruments database
401 - added support for escape sequences to the instruments database
402 - added highly experimental support for on-the-fly instrument editing
403 within the sampler's process (by using instrument editor plugins),
404 you'll notice the new "Registered instrument editors:" message on
405 startup, added a new LSCP command:
406 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
407 to spawn a matching instrument editor for the instrument on the
408 given sampler channel, the plugin path can be overridden at compile
409 time with ./configure --enable-plugin-dir=/some/dir
410 - added experimental code for synchronizing instrument editors hosted
411 in the sampler's process to safely edit instruments while playing
412 without a crash (hopefully) by either suspending single regions
413 wherever possible or if unavoidable whole engine(s)
414 - fixed several issues in fundamental "Thread" class: set scheduling
415 policy and priority on thread level, set a minimum stack size for
416 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
417 threads simply inherited properties of starting thread instead of
418 setting their own policy and priority
419 - minor fix in our automatic stack trace mechanism on crashes, the
420 main process did not wait for the stack trace process to finish
421 its output
422 - fixed some minor memory leaks
423 - reenabled assembly features support, at the moment only for
424 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
425 - minor assembly fix in x86 features detection (don't use the PIC
426 register, to avoid relocations in the text segment at runtime)
427 - POSIX callback functions of Thread.h are hidden
428
429 * MIDI driver:
430 - dispatch bank select (MSB and LSB) messages
431
432 * audio driver:
433 - the ALSA audio output driver parameters now reflect the correct
434 parameter value ranges for the respective selected sound card
435 (patch by Till Wimmer, a bit fixed and extended)
436
437 * Gigasampler format engine:
438 - if a filter is used and EG2 finishes before EG1, let the voice
439 die when EG2 has finished (this fixes a problem with clicks and
440 voice starvation for some gigs)
441 - playback is no longer disabled during instrument loading
442 - all notes playing on a channel that changes its instrument keep
443 playing with the old instrument until they get a note off
444 command
445 - EG fix: a release value of zero could cause noises or crash
446 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
447 - EG fine tuning: when attack is zero the EG starts at a level
448 above max sustain level, which means that there is a decay phase
449 even if sustain is 100%
450 - more EG fixes: the level could sometimes go below zero and cause
451 noises or crashes
452 - minor fix of EGDecay (patch by Toshi Nagata)
453 - fixed compiler error when --enable-override-filter-type was
454 supplied to the configure script (fixes #46)
455 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
456 instead of a fix value
457 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
458 127 (solo mode) only kill voices if the respective mode really
459 changed
460
461 * LSCP server:
462 - fixed compile time error for old Bison versions
463 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
464 - parser now supports extended ASCII character set
465 (up to ASCII code 255, i.e. includes now umlauts and accents)
466 - filename arguments in LSCP commands now allow to use escape
467 sequences, that is directly literal as one of: \', \", \\, \n, \r,
468 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
469 code value like \xf2) (fixes bug #24)
470 - the following LSCP commands now also support escape sequences for at
471 least one of their text-based parameters (i.e. name, description):
472 "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
473 "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
474 "SET DB_INSTRUMENT_DIRECTORY NAME",
475 "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
476 "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
477 "FIND DB_INSTRUMENT_DIRECTORIES"
478 - returns verbose syntax errors (line and column where syntax error
479 occured, the unexpected character and the actually expected, possible
480 character(s), the latter only if less than 5 possibilities)
481 - made sure that LSCP syntax is not affected by gigedit locale
482 settings
483 - bugfix regarding strings parameter lists: all comma separated lists
484 of strings were treated as being one string containing commas
485 (fixes #57)
486
487 * Bug fixes:
488 - fixed crash occurring on certain LSCP scripts (Bug 39)
489 - another thread safety fix for lscp "load engine" and "set
490 channel audio output device"
491 - fixed a crash which occurs when reassigning the same engine
492 on a sampler channel with connected MIDI device
493 - fixed a crash which occurs when changing the number of ports of a MIDI
494 device connected to a sampler channel to number less then or equal
495 to the index of the port to which the sampler channel is connected.
496 - The previous bindings were not been disconnected when altering
497 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
498 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
499 - The active stream/voice count statistic was incorrect.
500 - notification events were not been sent for some sampler
501 channel changes
502 - added default min and max values to restrict the number of allowed
503 audio output channels and MIDI input ports
504 - the connection to the PCM interface is now closed when destroying
505 an audio output device
506 - files with slash in their path or filename could not be loaded
507
508 * test cases:
509 - updated and fixed (haven't been touched in a while)
510
511 Version 0.4.0 (24 November 2006)
512
513 * packaging changes:
514 - changed deprecated copyright attribute to license; added ldconfig
515 to post-(un)install steps; added devel package for liblinuxsampler;
516 to linuxsampler.spec (RPM)
517 - install necessary development header files for allowing 3rd party
518 applications to link against liblinuxsampler
519 - liblinuxsampler's API documentation can be generated with 'make docs'
520 (Doxygen required)
521 - added benchmark to automatically detect the best triangle LFO
522 implementation (currently either an integer math solution or a
523 di-harmonic approximation), automatic detection can be overriden
524 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
525 configure script argument though (mandatory for cross-compilation)
526 - do not automatically pick optimized gcc flags if the user already
527 provided some on his own (as CXXFLAGS)
528 - added compile time option to disable processing of All-Notes-Off MIDI
529 messages
530 - added compile time options to allow disabling the various audio and
531 MIDI drivers
532 - fixed automatic GCC CPU switch detection on PPC
533 (patch by Ebrahim Mayat)
534
535 * Gigasampler format engine:
536 - extensive synthesis optimization
537 (reimplementation of EGs and LFO(s), removed synthesis parameter
538 prerendering and the synthesis parameter matrix in general, splitting
539 each audio fragment into subfragments now where each subfragment uses
540 constant pitch and filter coefficients. The volume coefficient is
541 linearly interpolated inside a subfragment, unless
542 --disable-interpolate-volume is set.)
543 - fine tuning of the EG modulation parameters
544 - improved filter cutoff calculation by adding support for the
545 following gig parameters: Cutoff freq (used when no cutoff
546 controller is defined), Control invert, Minimum cutoff, Velocity
547 curve and Velocity range. The keyboard tracking now scales
548 cutoff frequency instead of resonance.
549 - added support for gig parameter Resonance.
550 - fixed bug in sysex handling (patch by Juan Linietsky)
551 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
552 which can be overridden with --enable-global-attenuation
553 - EG fixes: made the length of "attack hold" stage more
554 accurate. Release stage can now start before attack stage
555 ends. Cancel release didn't work when sustain was zero. Attack
556 time now has a minimal value to prevent clicks.
557 - fixed pitch changes larger than one octave
558 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
559 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
560 all modes can be altered via standard GM messages, that is CC5 for
561 altering portamento time, CC65 for enabling / disabling portamento
562 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
563 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
564 parameter) and crossfade
565 - added support for the "attenuation controller threshold" gig
566 parameter
567 - added smoothing of volume changes caused by control change
568 messages
569 - sample loop parameters are now taken from the DimensionRegion
570 instead of the wave chunk
571 - fixed keyswitching for v3 gigs with a number of keyswitch splits
572 not equal to a power of two
573 - reimplementation of the filter algorithm. The new filter is more
574 accurate and supports all gig filter types, including bandreject
575 and lowpass turbo.
576 - real support for 24 bit samples - samples are not truncated to
577 16 bits anymore
578 - support for aftertouch (channel pressure, not polyphonic
579 aftertouch)
580 - LFO1 behaviour fixed (dampening from max volume instead of
581 amplifying from 0)
582
583 * LSCP server:
584 - fixed application exit on broken pipe error (fixes bug #20)
585 - fixed the notification messages delay due to lack of
586 network activity (fixes bug #26)
587 - fixed parser bug which occured on space(s) within device parameters
588 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
589
590 * audio driver:
591 - added aRts audio output driver (by no means RT safe)
592
593 * MIDI driver:
594 - fixed legacy sysex code which caused dispatching of MIDI SysEx
595 messages several times instead of once
596 - API extension for MIDI drivers which already supply exact time stamps
597 for events (i.e. for offline rendering based MIDI drivers)
598 - added checks for bad MIDI data
599
600 * linuxsampler application:
601 - show available sampler engine types on startup
602
603 * general changes:
604 - support for muting sampler channels and solo mode of the same, two new
605 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
606 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
607 introduced for this, the behavior is the same like on a mixer console
608 (patch by Grigor Iliev, a bit adjusted). Also added configure option
609 --enable-process-muted-channels which can be used to enable the
610 processing of muted channels.
611 - support for sostenuto pedal
612 - support for monitoring the total number of active voices
613 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
614 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
615 - fixed some memory management errors
616 - fixed some concurrency problems that could lead to crashes when
617 LSCP commands were executed
618 - fixed crash when instrument loading failed previously on the same
619 sampler channel (fixes bug #36)
620
621 Version 0.3.3 (15 July 2005)
622
623 * packaging changes:
624 - fixed compilation with gcc 4.0
625
626 * Gigasampler format engine:
627 - LFO preprocessing was performed even though the respective LFO was
628 disabled by the instrument patch (minor efficiency fix)
629 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
630 for volume ramp downs in the same fragment (needed for current voice
631 stealing implementation) then simply inform the user with a warning
632 about possible click sounds and reduce the volume ramp down
633 appropriately instead of cancelling the audio device connection
634
635 Version 0.3.2 (24 June 2005)
636
637 * packaging changes:
638 - updated autotools build files to compile on OS X
639 (conditional compilation of CoreMIDI and MidiShare drivers)
640 - hand-crafted assembly optimization code can be disabled with
641 './configure --disable-asm' (definitely not recommended)
642 - fixed 'make dist' rule to include all necessary files
643 - require automake (>= 1.5) for 'make -f Makefile.cvs'
644 (due to 'dist-bzip2' automake option)
645
646 * Gigasampler format engine:
647 - support for the gig parameters for "release velocity response" curves
648 - fine tuning of the EGADSR envelope
649 - volume of release triggered samples now depends on note-on velocity,
650 note length and gig parameter "release trigger decay" instead of
651 note-off velocity.
652 - revised voice stealing
653 (fixes crash and endless loop caused by voice stealing)
654 - don't reset scale tuning on instrument or audio output device change
655 - handle key group conflicts right at the beginning of each fragment
656 instead of when the respective voice is actually launched
657 (fixes undefined behavior if stolen voices belonged to a key group -
658 this case was followed by a "killed voice survived" error message)
659 - fixed minor issue with null/silence samples
660 (those stole voices even though they don't need a voice at all which
661 resulted in "voice stealing didn't work out" messages)
662 - don't reset volume, pan, pitch and MIDI controller values on
663 instrument or audio output device change
664
665 * LSCP server:
666 - fixed some crashes (patch by Grigor Iliev, fixes #19)
667 - fixed LSCP event "CHANNEL_INFO" notification
668 (e.g. did not notify on volume changes or MIDI program change events)
669
670 * linuxsampler application:
671 - added command line parameters --lscp-addr and --lscp-port to override
672 default IP address and port of LSCP server
673
674 Version 0.3.1 (24 May 2005)
675
676 * initial release

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