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Revision 1607 - (show annotations) (download)
Mon Dec 31 19:03:31 2007 UTC (11 years, 11 months ago) by schoenebeck
File size: 20032 byte(s)
* bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
  reflected the wrong value

1 Version CVS HEAD (?)
2
3 * general changes:
4 - bugfix: on some POSIX systems instrument editor plugins refused to
5 load as we used a non-portable Linux specific struct field
6 (fixes bug #70, patch by Ronald Baljeu)
7 - fixed endless loop which occured when loading an instrument editor
8 plugin DLL on Windows systems failed
9
10 * audio driver:
11 - removed the nonsense audio channel constraint (which was hard coded to
12 max. 100 audio channels) for most audio drivers
13 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
14 opposed to the LSCP specs
15 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
16 reflected the wrong value
17
18 * instruments database:
19 - avoid time consuming samples scanning when adding instruments
20 to the instruments database
21
22 Version 0.5.1 (6 December 2007)
23
24 * packaging changes:
25 - added autoconf checks for pthread library
26 - added autoconf check for pthread bug found on certain NPTL-enabled
27 glibc versions (see Gentoo bug report #194076)
28 - added autoconf checks for MS Windows
29
30 * general changes:
31 - bugfix: the thread used by an editor plugin didn't die when the
32 editor closed
33 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
34 out all the space. operator--() did not apply size_mask after
35 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
36 order to avoid problems with the _NonVolatileReader functions.
37 - bugfix: Stream.h: added a missing divide by BytesPerSample in
38 GetWriteSpace(). Since this function is currently only used in
39 the stream's qsort() compare function, it didn't trigger any
40 bugs.
41 - Resampler.h, Synthesizer.h: cubic interpolation now works in
42 24bit mode too. Faster method to read 24bit words on little
43 endian machines (x86): replaced 3 byte reads + shifts with a 1
44 unaligned 32bit read and shift
45 - experimental support for MS Windows (MIDI input via MME, AUDIO
46 output via ASIO)
47 - made handling of SIGINT signal (Ctrl-C) a bit more robust
48 - support for monitoring the total number of active disk streams
49 (new LSCP commands: GET TOTAL_STREAM_COUNT,
50 SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
51
52 * AUDIO driver:
53 - added Windows ASIO low latency audio driver
54
55 * MIDI driver:
56 - added MME Windows MIDI driver
57
58 * LSCP server:
59 - added support for Windows style path / filenames, however with
60 forward slash path separators instead of backslash
61 (i.e. "C:/foo/bar.gig")
62 - allow naughty liblscp to send non-string device parameters within
63 apostrophes as well
64 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
65 "LIST FILE INSTRUMENTS <file>" and
66 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
67 about an arbitrary instrument file on the system where the sampler is
68 running on
69
70 Version 0.5.0 (15 October 2007)
71
72 * packaging changes:
73 - config.h is not going to be installed along with liblinuxsampler's
74 API header files anymore
75 - only the API relevant header (and source) files will be exported to
76 the Doxygen API documentation (explicitly listed in Doxyfile.in)
77 - added completely new XCode project files for Mac OSX which is now
78 capable to execute our autoconf environment, thus no need anymore
79 to maintain the compile time configuration file (osx/version.h) for
80 OSX manually (patch by Toshi Nagata)
81 - fixed buggy boolean --enable-foo / --disable-foo configure script
82 parameters
83 - global.h now only covers global definitions that are needed for the
84 C++ API header files, all implementation internal global definitions
85 are now in global_private.h
86 - atomic.h is not exposed to the C++ API anymore
87 - no need to include config.h anymore for using LS's API header files
88 - fixed warnings in API doc generation
89
90 * general changes:
91 - replaced the old, confusing MIDI program change mechanism by a
92 flexible MIDI instrument mapper which allows to map arbitrary
93 (MIDI bank, MIDI program) pairs with arbitrary
94 (engine type, instrument file, file index) triplets which will be
95 loaded on the respective channel when such MIDI program change
96 messages arrive, beside that, each entry allows to define a life-time
97 strategy for the instrument, so the user can define whether the
98 instrument should i.e. be permanently loaded (to be able to switch
99 quickly among sounds) or i.e. loaded just on demand when the
100 respective program change arrives (to safe RAM space), as well as a
101 global volume factor for each entry, so the user can adjust the volume
102 dynamic of his mapped instrument collection without having to modify
103 the instrument files, also one can manage arbitrary amount of such
104 MIDI instrument maps and assign each sampler channel individually
105 a certain map, so that i.e. separation of normal instruments and
106 drumkits is possible
107 - new notification events for tracking changes to audio/MIDI devices,
108 MIDI instrument maps, MIDI instruments, FX sends, global volume.
109 - sampler was limited to load max. 200 instruments in the background
110 due to a constant size RingBuffer FIFO which is now replaced by a
111 dynamic (unlimited) size std::list FIFO
112 - added FX sends, these allow to route audio signals to arbitrary audio
113 output channels for being processed by external effect processors
114 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
115 controllers
116 - global (sampler wide) volume can now be controlled at runtime
117 - Implemented new, improved notification system
118 - fixed compilation errors regarding OSX
119 (patch by Toshi Nagata)
120 - implemented instruments database
121 - added support for escape sequences to the instruments database
122 - added highly experimental support for on-the-fly instrument editing
123 within the sampler's process (by using instrument editor plugins),
124 you'll notice the new "Registered instrument editors:" message on
125 startup, added a new LSCP command:
126 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
127 to spawn a matching instrument editor for the instrument on the
128 given sampler channel, the plugin path can be overridden at compile
129 time with ./configure --enable-plugin-dir=/some/dir
130 - added experimental code for synchronizing instrument editors hosted
131 in the sampler's process to safely edit instruments while playing
132 without a crash (hopefully) by either suspending single regions
133 wherever possible or if unavoidable whole engine(s)
134 - fixed several issues in fundamental "Thread" class: set scheduling
135 policy and priority on thread level, set a minimum stack size for
136 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
137 threads simply inherited properties of starting thread instead of
138 setting their own policy and priority
139 - minor fix in our automatic stack trace mechanism on crashes, the
140 main process did not wait for the stack trace process to finish
141 its output
142 - fixed some minor memory leaks
143 - reenabled assembly features support, at the moment only for
144 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
145 - minor assembly fix in x86 features detection (don't use the PIC
146 register, to avoid relocations in the text segment at runtime)
147 - POSIX callback functions of Thread.h are hidden
148
149 * MIDI driver:
150 - dispatch bank select (MSB and LSB) messages
151
152 * audio driver:
153 - the ALSA audio output driver parameters now reflect the correct
154 parameter value ranges for the respective selected sound card
155 (patch by Till Wimmer, a bit fixed and extended)
156
157 * Gigasampler format engine:
158 - if a filter is used and EG2 finishes before EG1, let the voice
159 die when EG2 has finished (this fixes a problem with clicks and
160 voice starvation for some gigs)
161 - playback is no longer disabled during instrument loading
162 - all notes playing on a channel that changes its instrument keep
163 playing with the old instrument until they get a note off
164 command
165 - EG fix: a release value of zero could cause noises or crash
166 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
167 - EG fine tuning: when attack is zero the EG starts at a level
168 above max sustain level, which means that there is a decay phase
169 even if sustain is 100%
170 - more EG fixes: the level could sometimes go below zero and cause
171 noises or crashes
172 - minor fix of EGDecay (patch by Toshi Nagata)
173 - fixed compiler error when --enable-override-filter-type was
174 supplied to the configure script (fixes #46)
175 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
176 instead of a fix value
177 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
178 127 (solo mode) only kill voices if the respective mode really
179 changed
180
181 * LSCP server:
182 - fixed compile time error for old Bison versions
183 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
184 - parser now supports extended ASCII character set
185 (up to ASCII code 255, i.e. includes now umlauts and accents)
186 - filename arguments in LSCP commands now allow to use escape
187 sequences, that is directly literal as one of: \', \", \\, \n, \r,
188 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
189 code value like \xf2) (fixes bug #24)
190 - the following LSCP commands now also support escape sequences for at
191 least one of their text-based parameters (i.e. name, description):
192 "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
193 "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
194 "SET DB_INSTRUMENT_DIRECTORY NAME",
195 "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
196 "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
197 "FIND DB_INSTRUMENT_DIRECTORIES"
198 - returns verbose syntax errors (line and column where syntax error
199 occured, the unexpected character and the actually expected, possible
200 character(s), the latter only if less than 5 possibilities)
201 - made sure that LSCP syntax is not affected by gigedit locale
202 settings
203 - bugfix regarding strings parameter lists: all comma separated lists
204 of strings were treated as being one string containing commas
205 (fixes #57)
206
207 * Bug fixes:
208 - fixed crash occurring on certain LSCP scripts (Bug 39)
209 - another thread safety fix for lscp "load engine" and "set
210 channel audio output device"
211 - fixed a crash which occurs when reassigning the same engine
212 on a sampler channel with connected MIDI device
213 - fixed a crash which occurs when changing the number of ports of a MIDI
214 device connected to a sampler channel to number less then or equal
215 to the index of the port to which the sampler channel is connected.
216 - The previous bindings were not been disconnected when altering
217 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
218 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
219 - The active stream/voice count statistic was incorrect.
220 - notification events were not been sent for some sampler
221 channel changes
222 - added default min and max values to restrict the number of allowed
223 audio output channels and MIDI input ports
224 - the connection to the PCM interface is now closed when destroying
225 an audio output device
226 - files with slash in their path or filename could not be loaded
227
228 * test cases:
229 - updated and fixed (haven't been touched in a while)
230
231 Version 0.4.0 (24 November 2006)
232
233 * packaging changes:
234 - changed deprecated copyright attribute to license; added ldconfig
235 to post-(un)install steps; added devel package for liblinuxsampler;
236 to linuxsampler.spec (RPM)
237 - install necessary development header files for allowing 3rd party
238 applications to link against liblinuxsampler
239 - liblinuxsampler's API documentation can be generated with 'make docs'
240 (Doxygen required)
241 - added benchmark to automatically detect the best triangle LFO
242 implementation (currently either an integer math solution or a
243 di-harmonic approximation), automatic detection can be overriden
244 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
245 configure script argument though (mandatory for cross-compilation)
246 - do not automatically pick optimized gcc flags if the user already
247 provided some on his own (as CXXFLAGS)
248 - added compile time option to disable processing of All-Notes-Off MIDI
249 messages
250 - added compile time options to allow disabling the various audio and
251 MIDI drivers
252 - fixed automatic GCC CPU switch detection on PPC
253 (patch by Ebrahim Mayat)
254
255 * Gigasampler format engine:
256 - extensive synthesis optimization
257 (reimplementation of EGs and LFO(s), removed synthesis parameter
258 prerendering and the synthesis parameter matrix in general, splitting
259 each audio fragment into subfragments now where each subfragment uses
260 constant pitch and filter coefficients. The volume coefficient is
261 linearly interpolated inside a subfragment, unless
262 --disable-interpolate-volume is set.)
263 - fine tuning of the EG modulation parameters
264 - improved filter cutoff calculation by adding support for the
265 following gig parameters: Cutoff freq (used when no cutoff
266 controller is defined), Control invert, Minimum cutoff, Velocity
267 curve and Velocity range. The keyboard tracking now scales
268 cutoff frequency instead of resonance.
269 - added support for gig parameter Resonance.
270 - fixed bug in sysex handling (patch by Juan Linietsky)
271 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
272 which can be overridden with --enable-global-attenuation
273 - EG fixes: made the length of "attack hold" stage more
274 accurate. Release stage can now start before attack stage
275 ends. Cancel release didn't work when sustain was zero. Attack
276 time now has a minimal value to prevent clicks.
277 - fixed pitch changes larger than one octave
278 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
279 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
280 all modes can be altered via standard GM messages, that is CC5 for
281 altering portamento time, CC65 for enabling / disabling portamento
282 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
283 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
284 parameter) and crossfade
285 - added support for the "attenuation controller threshold" gig
286 parameter
287 - added smoothing of volume changes caused by control change
288 messages
289 - sample loop parameters are now taken from the DimensionRegion
290 instead of the wave chunk
291 - fixed keyswitching for v3 gigs with a number of keyswitch splits
292 not equal to a power of two
293 - reimplementation of the filter algorithm. The new filter is more
294 accurate and supports all gig filter types, including bandreject
295 and lowpass turbo.
296 - real support for 24 bit samples - samples are not truncated to
297 16 bits anymore
298 - support for aftertouch (channel pressure, not polyphonic
299 aftertouch)
300 - LFO1 behaviour fixed (dampening from max volume instead of
301 amplifying from 0)
302
303 * LSCP server:
304 - fixed application exit on broken pipe error (fixes bug #20)
305 - fixed the notification messages delay due to lack of
306 network activity (fixes bug #26)
307 - fixed parser bug which occured on space(s) within device parameters
308 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
309
310 * audio driver:
311 - added aRts audio output driver (by no means RT safe)
312
313 * MIDI driver:
314 - fixed legacy sysex code which caused dispatching of MIDI SysEx
315 messages several times instead of once
316 - API extension for MIDI drivers which already supply exact time stamps
317 for events (i.e. for offline rendering based MIDI drivers)
318 - added checks for bad MIDI data
319
320 * linuxsampler application:
321 - show available sampler engine types on startup
322
323 * general changes:
324 - support for muting sampler channels and solo mode of the same, two new
325 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
326 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
327 introduced for this, the behavior is the same like on a mixer console
328 (patch by Grigor Iliev, a bit adjusted). Also added configure option
329 --enable-process-muted-channels which can be used to enable the
330 processing of muted channels.
331 - support for sostenuto pedal
332 - support for monitoring the total number of active voices
333 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
334 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
335 - fixed some memory management errors
336 - fixed some concurrency problems that could lead to crashes when
337 LSCP commands were executed
338 - fixed crash when instrument loading failed previously on the same
339 sampler channel (fixes bug #36)
340
341 Version 0.3.3 (15 July 2005)
342
343 * packaging changes:
344 - fixed compilation with gcc 4.0
345
346 * Gigasampler format engine:
347 - LFO preprocessing was performed even though the respective LFO was
348 disabled by the instrument patch (minor efficiency fix)
349 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
350 for volume ramp downs in the same fragment (needed for current voice
351 stealing implementation) then simply inform the user with a warning
352 about possible click sounds and reduce the volume ramp down
353 appropriately instead of cancelling the audio device connection
354
355 Version 0.3.2 (24 June 2005)
356
357 * packaging changes:
358 - updated autotools build files to compile on OS X
359 (conditional compilation of CoreMIDI and MidiShare drivers)
360 - hand-crafted assembly optimization code can be disabled with
361 './configure --disable-asm' (definitely not recommended)
362 - fixed 'make dist' rule to include all necessary files
363 - require automake (>= 1.5) for 'make -f Makefile.cvs'
364 (due to 'dist-bzip2' automake option)
365
366 * Gigasampler format engine:
367 - support for the gig parameters for "release velocity response" curves
368 - fine tuning of the EGADSR envelope
369 - volume of release triggered samples now depends on note-on velocity,
370 note length and gig parameter "release trigger decay" instead of
371 note-off velocity.
372 - revised voice stealing
373 (fixes crash and endless loop caused by voice stealing)
374 - don't reset scale tuning on instrument or audio output device change
375 - handle key group conflicts right at the beginning of each fragment
376 instead of when the respective voice is actually launched
377 (fixes undefined behavior if stolen voices belonged to a key group -
378 this case was followed by a "killed voice survived" error message)
379 - fixed minor issue with null/silence samples
380 (those stole voices even though they don't need a voice at all which
381 resulted in "voice stealing didn't work out" messages)
382 - don't reset volume, pan, pitch and MIDI controller values on
383 instrument or audio output device change
384
385 * LSCP server:
386 - fixed some crashes (patch by Grigor Iliev, fixes #19)
387 - fixed LSCP event "CHANNEL_INFO" notification
388 (e.g. did not notify on volume changes or MIDI program change events)
389
390 * linuxsampler application:
391 - added command line parameters --lscp-addr and --lscp-port to override
392 default IP address and port of LSCP server
393
394 Version 0.3.1 (24 May 2005)
395
396 * initial release

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