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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1651 - (show annotations) (download)
Sun Jan 27 15:07:11 2008 UTC (12 years ago) by persson
File size: 20763 byte(s)
* added JACK MIDI driver

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

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