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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1701 - (show annotations) (download)
Sun Feb 17 12:45:56 2008 UTC (12 years, 7 months ago) by persson
File size: 21810 byte(s)
- added partial support for the "Controller Triggered" MIDI rule,
  enough for piano gigs with pedal noise samples

1 Version CVS HEAD (?)
3 * packaging changes:
4 - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
5 causing e.g. the libgig test to fail when
6 "./configure --disable-jack-driver" was used
7 (patch by Alexis Ballier)
9 * general changes:
10 - bugfix: on some POSIX systems instrument editor plugins refused to
11 load as we used a non-portable Linux specific struct field
12 (fixes bug #70, patch by Ronald Baljeu)
13 - fixed endless loop which occured when loading an instrument editor
14 plugin DLL on Windows systems failed
15 - fixed memory leaks that occurred when liblinuxsampler was unloaded
16 - optimized the SynchronizedConfig class so it doesn't wait
17 unnecessarily long after an update
18 - added support for notifying instrument editors on note-on / note-off
19 events (e.g. to highlight the pressed keys on the virtual keyboard
20 of gigedit)
21 - added support for triggering notes by instrument editors (see above)
22 - be verbose on DLL load errors (on Linux)
23 - fixed di-harmonic triangle LFO implementation (this LFO implementation
24 is only used by very few systems, most pick the int math
25 implementation, which is usually faster)
27 * audio driver:
28 - removed the nonsense audio channel constraint (which was hard coded to
29 max. 100 audio channels) for most audio drivers
30 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
31 opposed to the LSCP specs
32 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
33 reflected the wrong value
34 - fixed a memory management bug in ASIO driver
36 * MIDI driver:
37 - added JACK MIDI driver
39 * instruments database:
40 - avoid time consuming samples scanning when adding instruments
41 to the instruments database
43 * Gigasampler format engine:
44 - fixed a memory leak that could happen when a channel was deleted
45 while notes were playing
46 - made it possible to load an instrument even if the audio thread
47 isn't running
48 - added partial support for the "Controller Triggered" MIDI rule,
49 enough for piano gigs with pedal noise samples
51 * LSCP server:
52 - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
53 react on MIDI data arriving on certain sampler channels (so far only
54 Note-On and Note-Off events are sent via this LSCP event)
55 - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
56 react on MIDI data arriving on certain MIDI input devices (so far only
57 Note-On and Note-Off events are sent via this LSCP event)
59 Version 0.5.1 (6 December 2007)
61 * packaging changes:
62 - added autoconf checks for pthread library
63 - added autoconf check for pthread bug found on certain NPTL-enabled
64 glibc versions (see Gentoo bug report #194076)
65 - added autoconf checks for MS Windows
67 * general changes:
68 - bugfix: the thread used by an editor plugin didn't die when the
69 editor closed
70 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
71 out all the space. operator--() did not apply size_mask after
72 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
73 order to avoid problems with the _NonVolatileReader functions.
74 - bugfix: Stream.h: added a missing divide by BytesPerSample in
75 GetWriteSpace(). Since this function is currently only used in
76 the stream's qsort() compare function, it didn't trigger any
77 bugs.
78 - Resampler.h, Synthesizer.h: cubic interpolation now works in
79 24bit mode too. Faster method to read 24bit words on little
80 endian machines (x86): replaced 3 byte reads + shifts with a 1
81 unaligned 32bit read and shift
82 - experimental support for MS Windows (MIDI input via MME, AUDIO
83 output via ASIO)
84 - made handling of SIGINT signal (Ctrl-C) a bit more robust
85 - support for monitoring the total number of active disk streams
86 (new LSCP commands: GET TOTAL_STREAM_COUNT,
89 * AUDIO driver:
90 - added Windows ASIO low latency audio driver
92 * MIDI driver:
93 - added MME Windows MIDI driver
95 * LSCP server:
96 - added support for Windows style path / filenames, however with
97 forward slash path separators instead of backslash
98 (i.e. "C:/foo/bar.gig")
99 - allow naughty liblscp to send non-string device parameters within
100 apostrophes as well
101 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
102 "LIST FILE INSTRUMENTS <file>" and
103 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
104 about an arbitrary instrument file on the system where the sampler is
105 running on
107 Version 0.5.0 (15 October 2007)
109 * packaging changes:
110 - config.h is not going to be installed along with liblinuxsampler's
111 API header files anymore
112 - only the API relevant header (and source) files will be exported to
113 the Doxygen API documentation (explicitly listed in Doxyfile.in)
114 - added completely new XCode project files for Mac OSX which is now
115 capable to execute our autoconf environment, thus no need anymore
116 to maintain the compile time configuration file (osx/version.h) for
117 OSX manually (patch by Toshi Nagata)
118 - fixed buggy boolean --enable-foo / --disable-foo configure script
119 parameters
120 - global.h now only covers global definitions that are needed for the
121 C++ API header files, all implementation internal global definitions
122 are now in global_private.h
123 - atomic.h is not exposed to the C++ API anymore
124 - no need to include config.h anymore for using LS's API header files
125 - fixed warnings in API doc generation
127 * general changes:
128 - replaced the old, confusing MIDI program change mechanism by a
129 flexible MIDI instrument mapper which allows to map arbitrary
130 (MIDI bank, MIDI program) pairs with arbitrary
131 (engine type, instrument file, file index) triplets which will be
132 loaded on the respective channel when such MIDI program change
133 messages arrive, beside that, each entry allows to define a life-time
134 strategy for the instrument, so the user can define whether the
135 instrument should i.e. be permanently loaded (to be able to switch
136 quickly among sounds) or i.e. loaded just on demand when the
137 respective program change arrives (to safe RAM space), as well as a
138 global volume factor for each entry, so the user can adjust the volume
139 dynamic of his mapped instrument collection without having to modify
140 the instrument files, also one can manage arbitrary amount of such
141 MIDI instrument maps and assign each sampler channel individually
142 a certain map, so that i.e. separation of normal instruments and
143 drumkits is possible
144 - new notification events for tracking changes to audio/MIDI devices,
145 MIDI instrument maps, MIDI instruments, FX sends, global volume.
146 - sampler was limited to load max. 200 instruments in the background
147 due to a constant size RingBuffer FIFO which is now replaced by a
148 dynamic (unlimited) size std::list FIFO
149 - added FX sends, these allow to route audio signals to arbitrary audio
150 output channels for being processed by external effect processors
151 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
152 controllers
153 - global (sampler wide) volume can now be controlled at runtime
154 - Implemented new, improved notification system
155 - fixed compilation errors regarding OSX
156 (patch by Toshi Nagata)
157 - implemented instruments database
158 - added support for escape sequences to the instruments database
159 - added highly experimental support for on-the-fly instrument editing
160 within the sampler's process (by using instrument editor plugins),
161 you'll notice the new "Registered instrument editors:" message on
162 startup, added a new LSCP command:
163 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
164 to spawn a matching instrument editor for the instrument on the
165 given sampler channel, the plugin path can be overridden at compile
166 time with ./configure --enable-plugin-dir=/some/dir
167 - added experimental code for synchronizing instrument editors hosted
168 in the sampler's process to safely edit instruments while playing
169 without a crash (hopefully) by either suspending single regions
170 wherever possible or if unavoidable whole engine(s)
171 - fixed several issues in fundamental "Thread" class: set scheduling
172 policy and priority on thread level, set a minimum stack size for
173 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
174 threads simply inherited properties of starting thread instead of
175 setting their own policy and priority
176 - minor fix in our automatic stack trace mechanism on crashes, the
177 main process did not wait for the stack trace process to finish
178 its output
179 - fixed some minor memory leaks
180 - reenabled assembly features support, at the moment only for
181 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
182 - minor assembly fix in x86 features detection (don't use the PIC
183 register, to avoid relocations in the text segment at runtime)
184 - POSIX callback functions of Thread.h are hidden
186 * MIDI driver:
187 - dispatch bank select (MSB and LSB) messages
189 * audio driver:
190 - the ALSA audio output driver parameters now reflect the correct
191 parameter value ranges for the respective selected sound card
192 (patch by Till Wimmer, a bit fixed and extended)
194 * Gigasampler format engine:
195 - if a filter is used and EG2 finishes before EG1, let the voice
196 die when EG2 has finished (this fixes a problem with clicks and
197 voice starvation for some gigs)
198 - playback is no longer disabled during instrument loading
199 - all notes playing on a channel that changes its instrument keep
200 playing with the old instrument until they get a note off
201 command
202 - EG fix: a release value of zero could cause noises or crash
203 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
204 - EG fine tuning: when attack is zero the EG starts at a level
205 above max sustain level, which means that there is a decay phase
206 even if sustain is 100%
207 - more EG fixes: the level could sometimes go below zero and cause
208 noises or crashes
209 - minor fix of EGDecay (patch by Toshi Nagata)
210 - fixed compiler error when --enable-override-filter-type was
211 supplied to the configure script (fixes #46)
212 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
213 instead of a fix value
214 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
215 127 (solo mode) only kill voices if the respective mode really
216 changed
218 * LSCP server:
219 - fixed compile time error for old Bison versions
220 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
221 - parser now supports extended ASCII character set
222 (up to ASCII code 255, i.e. includes now umlauts and accents)
223 - filename arguments in LSCP commands now allow to use escape
224 sequences, that is directly literal as one of: \', \", \\, \n, \r,
225 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
226 code value like \xf2) (fixes bug #24)
227 - the following LSCP commands now also support escape sequences for at
228 least one of their text-based parameters (i.e. name, description):
235 - returns verbose syntax errors (line and column where syntax error
236 occured, the unexpected character and the actually expected, possible
237 character(s), the latter only if less than 5 possibilities)
238 - made sure that LSCP syntax is not affected by gigedit locale
239 settings
240 - bugfix regarding strings parameter lists: all comma separated lists
241 of strings were treated as being one string containing commas
242 (fixes #57)
244 * Bug fixes:
245 - fixed crash occurring on certain LSCP scripts (Bug 39)
246 - another thread safety fix for lscp "load engine" and "set
247 channel audio output device"
248 - fixed a crash which occurs when reassigning the same engine
249 on a sampler channel with connected MIDI device
250 - fixed a crash which occurs when changing the number of ports of a MIDI
251 device connected to a sampler channel to number less then or equal
252 to the index of the port to which the sampler channel is connected.
253 - The previous bindings were not been disconnected when altering
254 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
255 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
256 - The active stream/voice count statistic was incorrect.
257 - notification events were not been sent for some sampler
258 channel changes
259 - added default min and max values to restrict the number of allowed
260 audio output channels and MIDI input ports
261 - the connection to the PCM interface is now closed when destroying
262 an audio output device
263 - files with slash in their path or filename could not be loaded
265 * test cases:
266 - updated and fixed (haven't been touched in a while)
268 Version 0.4.0 (24 November 2006)
270 * packaging changes:
271 - changed deprecated copyright attribute to license; added ldconfig
272 to post-(un)install steps; added devel package for liblinuxsampler;
273 to linuxsampler.spec (RPM)
274 - install necessary development header files for allowing 3rd party
275 applications to link against liblinuxsampler
276 - liblinuxsampler's API documentation can be generated with 'make docs'
277 (Doxygen required)
278 - added benchmark to automatically detect the best triangle LFO
279 implementation (currently either an integer math solution or a
280 di-harmonic approximation), automatic detection can be overriden
281 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
282 configure script argument though (mandatory for cross-compilation)
283 - do not automatically pick optimized gcc flags if the user already
284 provided some on his own (as CXXFLAGS)
285 - added compile time option to disable processing of All-Notes-Off MIDI
286 messages
287 - added compile time options to allow disabling the various audio and
288 MIDI drivers
289 - fixed automatic GCC CPU switch detection on PPC
290 (patch by Ebrahim Mayat)
292 * Gigasampler format engine:
293 - extensive synthesis optimization
294 (reimplementation of EGs and LFO(s), removed synthesis parameter
295 prerendering and the synthesis parameter matrix in general, splitting
296 each audio fragment into subfragments now where each subfragment uses
297 constant pitch and filter coefficients. The volume coefficient is
298 linearly interpolated inside a subfragment, unless
299 --disable-interpolate-volume is set.)
300 - fine tuning of the EG modulation parameters
301 - improved filter cutoff calculation by adding support for the
302 following gig parameters: Cutoff freq (used when no cutoff
303 controller is defined), Control invert, Minimum cutoff, Velocity
304 curve and Velocity range. The keyboard tracking now scales
305 cutoff frequency instead of resonance.
306 - added support for gig parameter Resonance.
307 - fixed bug in sysex handling (patch by Juan Linietsky)
308 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
309 which can be overridden with --enable-global-attenuation
310 - EG fixes: made the length of "attack hold" stage more
311 accurate. Release stage can now start before attack stage
312 ends. Cancel release didn't work when sustain was zero. Attack
313 time now has a minimal value to prevent clicks.
314 - fixed pitch changes larger than one octave
315 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
316 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
317 all modes can be altered via standard GM messages, that is CC5 for
318 altering portamento time, CC65 for enabling / disabling portamento
319 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
320 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
321 parameter) and crossfade
322 - added support for the "attenuation controller threshold" gig
323 parameter
324 - added smoothing of volume changes caused by control change
325 messages
326 - sample loop parameters are now taken from the DimensionRegion
327 instead of the wave chunk
328 - fixed keyswitching for v3 gigs with a number of keyswitch splits
329 not equal to a power of two
330 - reimplementation of the filter algorithm. The new filter is more
331 accurate and supports all gig filter types, including bandreject
332 and lowpass turbo.
333 - real support for 24 bit samples - samples are not truncated to
334 16 bits anymore
335 - support for aftertouch (channel pressure, not polyphonic
336 aftertouch)
337 - LFO1 behaviour fixed (dampening from max volume instead of
338 amplifying from 0)
340 * LSCP server:
341 - fixed application exit on broken pipe error (fixes bug #20)
342 - fixed the notification messages delay due to lack of
343 network activity (fixes bug #26)
344 - fixed parser bug which occured on space(s) within device parameters
347 * audio driver:
348 - added aRts audio output driver (by no means RT safe)
350 * MIDI driver:
351 - fixed legacy sysex code which caused dispatching of MIDI SysEx
352 messages several times instead of once
353 - API extension for MIDI drivers which already supply exact time stamps
354 for events (i.e. for offline rendering based MIDI drivers)
355 - added checks for bad MIDI data
357 * linuxsampler application:
358 - show available sampler engine types on startup
360 * general changes:
361 - support for muting sampler channels and solo mode of the same, two new
362 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
363 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
364 introduced for this, the behavior is the same like on a mixer console
365 (patch by Grigor Iliev, a bit adjusted). Also added configure option
366 --enable-process-muted-channels which can be used to enable the
367 processing of muted channels.
368 - support for sostenuto pedal
369 - support for monitoring the total number of active voices
372 - fixed some memory management errors
373 - fixed some concurrency problems that could lead to crashes when
374 LSCP commands were executed
375 - fixed crash when instrument loading failed previously on the same
376 sampler channel (fixes bug #36)
378 Version 0.3.3 (15 July 2005)
380 * packaging changes:
381 - fixed compilation with gcc 4.0
383 * Gigasampler format engine:
384 - LFO preprocessing was performed even though the respective LFO was
385 disabled by the instrument patch (minor efficiency fix)
386 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
387 for volume ramp downs in the same fragment (needed for current voice
388 stealing implementation) then simply inform the user with a warning
389 about possible click sounds and reduce the volume ramp down
390 appropriately instead of cancelling the audio device connection
392 Version 0.3.2 (24 June 2005)
394 * packaging changes:
395 - updated autotools build files to compile on OS X
396 (conditional compilation of CoreMIDI and MidiShare drivers)
397 - hand-crafted assembly optimization code can be disabled with
398 './configure --disable-asm' (definitely not recommended)
399 - fixed 'make dist' rule to include all necessary files
400 - require automake (>= 1.5) for 'make -f Makefile.cvs'
401 (due to 'dist-bzip2' automake option)
403 * Gigasampler format engine:
404 - support for the gig parameters for "release velocity response" curves
405 - fine tuning of the EGADSR envelope
406 - volume of release triggered samples now depends on note-on velocity,
407 note length and gig parameter "release trigger decay" instead of
408 note-off velocity.
409 - revised voice stealing
410 (fixes crash and endless loop caused by voice stealing)
411 - don't reset scale tuning on instrument or audio output device change
412 - handle key group conflicts right at the beginning of each fragment
413 instead of when the respective voice is actually launched
414 (fixes undefined behavior if stolen voices belonged to a key group -
415 this case was followed by a "killed voice survived" error message)
416 - fixed minor issue with null/silence samples
417 (those stole voices even though they don't need a voice at all which
418 resulted in "voice stealing didn't work out" messages)
419 - don't reset volume, pan, pitch and MIDI controller values on
420 instrument or audio output device change
422 * LSCP server:
423 - fixed some crashes (patch by Grigor Iliev, fixes #19)
424 - fixed LSCP event "CHANNEL_INFO" notification
425 (e.g. did not notify on volume changes or MIDI program change events)
427 * linuxsampler application:
428 - added command line parameters --lscp-addr and --lscp-port to override
429 default IP address and port of LSCP server
431 Version 0.3.1 (24 May 2005)
433 * initial release

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