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revision 668 by schoenebeck, Mon Jun 20 15:30:47 2005 UTC revision 1781 by iliev, Mon Sep 29 18:21:21 2008 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * 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)
8        - fixed compilation with gcc 4.3
9    
10      * general changes:
11        - bugfix: on some POSIX systems instrument editor plugins refused to
12          load as we used a non-portable Linux specific struct field
13          (fixes bug #70, patch by Ronald Baljeu)
14        - fixed endless loop which occured when loading an instrument editor
15          plugin DLL on Windows systems failed
16        - fixed memory leaks that occurred when liblinuxsampler was unloaded
17        - optimized the SynchronizedConfig class so it doesn't wait
18          unnecessarily long after an update
19        - added support for notifying instrument editors on note-on / note-off
20          events (e.g. to highlight the pressed keys on the virtual keyboard
21          of gigedit)
22        - added support for triggering notes by instrument editors (see above)
23        - be verbose on DLL load errors (on Linux)
24        - fixed di-harmonic triangle LFO implementation (this LFO implementation
25          is only used by very few systems, most pick the int math
26          implementation, which is usually faster)
27        - fixes for audio drivers with varying buffer sizes
28        - experimental support for running LinuxSampler as a DSSI, LV2 and
29          VST plugin
30    
31      * audio driver:
32        - removed the nonsense audio channel constraint (which was hard coded to
33          max. 100 audio channels) for most audio drivers
34        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
35          opposed to the LSCP specs
36        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
37          reflected the wrong value
38        - fixed a memory management bug in ASIO driver
39        - Makefile fix: JACK_CFLAGS wasn't used
40        - JACK: use jack_client_open instead of the deprecated
41          jack_client_new
42    
43      * MIDI driver:
44        - added JACK MIDI driver
45        - dispatch bank select as ordinary CC as well, the user might seriously
46          want to (mis)use it for some purpose ("fixed" in all current MIDI
47          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
48    
49      * instruments database:
50        - avoid time consuming samples scanning when adding instruments
51          to the instruments database
52        - added support for handling lost files in the instruments database
53        - Implemented option for adding instruments in separate directories
54          in the instruments database
55          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
56    
57      * Gigasampler format engine:
58        - fixed a memory leak that could happen when a channel was deleted
59          while notes were playing
60        - made it possible to load an instrument even if the audio thread
61          isn't running
62        - added partial support for the "Controller Triggered" MIDI rule,
63          enough for piano gigs with pedal noise samples
64        - minor fix: only mark FX sends as being modified if really the
65          respective FX send MIDI controller was used
66        - added support for GM global device volume SysEx message
67          (can be selected at compile time to either apply globally to the
68          whole sampler [default] or only to the sampler channels that are
69          connected to the respective MIDI input port the SysEx message arrived
70          on)
71        - bugfix: notes triggered at position 0 in the audio buffer were
72          sometimes wrongly killed in the same buffer, causing no sound to
73          be played
74        - added support for chromatic / drumkit mode Roland GS Sysex message
75          which is usally used to switch a part between chromatic sounds and
76          drumkit sounds (as opposed to their common default setting of MIDI
77          part 10 being a drumkit part and all other ones chromatic parts), in
78          LS however one can switch between the first 16 MIDI instrument maps
79          defined for the sampler
80        - made it possible to create multiple sample channels even if the
81          audio thread isn't running
82    
83      * LSCP server:
84        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
85          react on MIDI data arriving on certain sampler channels (so far only
86          Note-On and Note-Off events are sent via this LSCP event)
87        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
88          react on MIDI data arriving on certain MIDI input devices (so far only
89          Note-On and Note-Off events are sent via this LSCP event)
90        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
91          SET DB_INSTRUMENT FILE_PATH
92        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
93          frontends to send MIDI messages to specific sampler channel
94        - added two additional fields to GET FILE INSTRUMENT INFO command -
95          KEY_BINDINGS and KEYSWITCH_BINDINGS
96        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
97          was incorrect
98        - Optimized the retrieval of the MIDI instrument mappings
99    
100      * Bug fixes:
101        - fixed a crash which occurs when removing a sampler channel waiting
102          to start instrument loading after another channel
103    
104    
105    Version 0.5.1 (6 December 2007)
106    
107      * packaging changes:
108        - added autoconf checks for pthread library
109        - added autoconf check for pthread bug found on certain NPTL-enabled
110          glibc versions (see Gentoo bug report #194076)
111        - added autoconf checks for MS Windows
112    
113      * general changes:
114        - bugfix: the thread used by an editor plugin didn't die when the
115          editor closed
116        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
117          out all the space. operator--() did not apply size_mask after
118          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
119          order to avoid problems with the _NonVolatileReader functions.
120        - bugfix: Stream.h: added a missing divide by BytesPerSample in
121          GetWriteSpace(). Since this function is currently only used in
122          the stream's qsort() compare function, it didn't trigger any
123          bugs.
124        - Resampler.h, Synthesizer.h: cubic interpolation now works in
125          24bit mode too. Faster method to read 24bit words on little
126          endian machines (x86): replaced 3 byte reads + shifts with a 1
127          unaligned 32bit read and shift
128        - experimental support for MS Windows (MIDI input via MME, AUDIO
129          output via ASIO)
130        - made handling of SIGINT signal (Ctrl-C) a bit more robust
131        - support for monitoring the total number of active disk streams
132          (new LSCP commands: GET TOTAL_STREAM_COUNT,
133          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
134    
135      * AUDIO driver:
136        - added Windows ASIO low latency audio driver
137    
138      * MIDI driver:
139        - added MME Windows MIDI driver
140    
141      * LSCP server:
142        - added support for Windows style path / filenames, however with
143          forward slash path separators instead of backslash
144          (i.e. "C:/foo/bar.gig")
145        - allow naughty liblscp to send non-string device parameters within
146          apostrophes as well
147        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
148          "LIST FILE INSTRUMENTS <file>" and
149          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
150          about an arbitrary instrument file on the system where the sampler is
151          running on
152    
153    Version 0.5.0 (15 October 2007)
154    
155      * packaging changes:
156        - config.h is not going to be installed along with liblinuxsampler's
157          API header files anymore
158        - only the API relevant header (and source) files will be exported to
159          the Doxygen API documentation (explicitly listed in Doxyfile.in)
160        - added completely new XCode project files for Mac OSX which is now
161          capable to execute our autoconf environment, thus no need anymore
162          to maintain the compile time configuration file (osx/version.h) for
163          OSX manually (patch by Toshi Nagata)
164        - fixed buggy boolean --enable-foo / --disable-foo configure script
165          parameters
166        - global.h now only covers global definitions that are needed for the
167          C++ API header files, all implementation internal global definitions
168          are now in global_private.h
169        - atomic.h is not exposed to the C++ API anymore
170        - no need to include config.h anymore for using LS's API header files
171        - fixed warnings in API doc generation
172    
173      * general changes:
174        - replaced the old, confusing MIDI program change mechanism by a
175          flexible MIDI instrument mapper which allows to map arbitrary
176          (MIDI bank, MIDI program) pairs with arbitrary
177          (engine type, instrument file, file index) triplets which will be
178          loaded on the respective channel when such MIDI program change
179          messages arrive, beside that, each entry allows to define a life-time
180          strategy for the instrument, so the user can define whether the
181          instrument should i.e. be permanently loaded (to be able to switch
182          quickly among sounds) or i.e. loaded just on demand when the
183          respective program change arrives (to safe RAM space), as well as a
184          global volume factor for each entry, so the user can adjust the volume
185          dynamic of his mapped instrument collection without having to modify
186          the instrument files, also one can manage arbitrary amount of such
187          MIDI instrument maps and assign each sampler channel individually
188          a certain map, so that i.e. separation of normal instruments and
189          drumkits is possible
190        - new notification events for tracking changes to audio/MIDI devices,
191          MIDI instrument maps, MIDI instruments, FX sends, global volume.
192        - sampler was limited to load max. 200 instruments in the background
193          due to a constant size RingBuffer FIFO which is now replaced by a
194          dynamic (unlimited) size std::list FIFO
195        - added FX sends, these allow to route audio signals to arbitrary audio
196          output channels for being processed by external effect processors
197          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
198          controllers
199        - global (sampler wide) volume can now be controlled at runtime
200        - Implemented new, improved notification system
201        - fixed compilation errors regarding OSX
202          (patch by Toshi Nagata)
203        - implemented instruments database
204        - added support for escape sequences to the instruments database
205        - added highly experimental support for on-the-fly instrument editing
206          within the sampler's process (by using instrument editor plugins),
207          you'll notice the new "Registered instrument editors:" message on
208          startup, added a new LSCP command:
209          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
210          to spawn a matching instrument editor for the instrument on the
211          given sampler channel, the plugin path can be overridden at compile
212          time with ./configure --enable-plugin-dir=/some/dir
213        - added experimental code for synchronizing instrument editors hosted
214          in the sampler's process to safely edit instruments while playing
215          without a crash (hopefully) by either suspending single regions
216          wherever possible or if unavoidable whole engine(s)
217        - fixed several issues in fundamental "Thread" class: set scheduling
218          policy and priority on thread level, set a minimum stack size for
219          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
220          threads simply inherited properties of starting thread instead of
221          setting their own policy and priority
222        - minor fix in our automatic stack trace mechanism on crashes, the
223          main process did not wait for the stack trace process to finish
224          its output
225        - fixed some minor memory leaks
226        - reenabled assembly features support, at the moment only for
227          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
228        - minor assembly fix in x86 features detection (don't use the PIC
229          register, to avoid relocations in the text segment at runtime)
230        - POSIX callback functions of Thread.h are hidden
231    
232      * MIDI driver:
233        - dispatch bank select (MSB and LSB) messages
234    
235      * audio driver:
236        - the ALSA audio output driver parameters now reflect the correct
237          parameter value ranges for the respective selected sound card
238          (patch by Till Wimmer, a bit fixed and extended)
239    
240      * Gigasampler format engine:
241        - if a filter is used and EG2 finishes before EG1, let the voice
242          die when EG2 has finished (this fixes a problem with clicks and
243          voice starvation for some gigs)
244        - playback is no longer disabled during instrument loading
245        - all notes playing on a channel that changes its instrument keep
246          playing with the old instrument until they get a note off
247          command
248        - EG fix: a release value of zero could cause noises or crash
249        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
250        - EG fine tuning: when attack is zero the EG starts at a level
251          above max sustain level, which means that there is a decay phase
252          even if sustain is 100%
253        - more EG fixes: the level could sometimes go below zero and cause
254          noises or crashes
255        - minor fix of EGDecay (patch by Toshi Nagata)
256        - fixed compiler error when --enable-override-filter-type was
257          supplied to the configure script (fixes #46)
258        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
259          instead of a fix value
260        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
261          127 (solo mode) only kill voices if the respective mode really
262          changed
263    
264      * LSCP server:
265        - fixed compile time error for old Bison versions
266          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
267        - parser now supports extended ASCII character set
268          (up to ASCII code 255, i.e. includes now umlauts and accents)
269        - filename arguments in LSCP commands now allow to use escape
270          sequences, that is directly literal as one of: \', \", \\, \n, \r,
271          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
272          code value like \xf2) (fixes bug #24)
273        - the following LSCP commands now also support escape sequences for at
274          least one of their text-based parameters (i.e. name, description):
275          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
276          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
277          "SET DB_INSTRUMENT_DIRECTORY NAME",
278          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
279          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
280          "FIND DB_INSTRUMENT_DIRECTORIES"
281        - returns verbose syntax errors (line and column where syntax error
282          occured, the unexpected character and the actually expected, possible
283          character(s), the latter only if less than 5 possibilities)
284        - made sure that LSCP syntax is not affected by gigedit locale
285          settings
286        - bugfix regarding strings parameter lists: all comma separated lists
287          of strings were treated as being one string containing commas
288          (fixes #57)
289    
290      * Bug fixes:
291        - fixed crash occurring on certain LSCP scripts (Bug 39)
292        - another thread safety fix for lscp "load engine" and "set
293          channel audio output device"
294        - fixed a crash which occurs when reassigning the same engine
295          on a sampler channel with connected MIDI device
296        - fixed a crash which occurs when changing the number of ports of a MIDI
297          device connected to a sampler channel to number less then or equal
298          to the index of the port to which the sampler channel is connected.
299        - The previous bindings were not been disconnected when altering
300          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
301          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
302        - The active stream/voice count statistic was incorrect.
303        - notification events were not been sent for some sampler
304          channel changes
305        - added default min and max values to restrict the number of allowed
306          audio output channels and MIDI input ports
307        - the connection to the PCM interface is now closed when destroying
308          an audio output device
309        - files with slash in their path or filename could not be loaded
310    
311      * test cases:
312        - updated and fixed (haven't been touched in a while)
313    
314    Version 0.4.0 (24 November 2006)
315    
316      * packaging changes:
317        - changed deprecated copyright attribute to license; added ldconfig
318          to post-(un)install steps; added devel package for liblinuxsampler;
319          to linuxsampler.spec (RPM)
320        - install necessary development header files for allowing 3rd party
321          applications to link against liblinuxsampler
322        - liblinuxsampler's API documentation can be generated with 'make docs'
323          (Doxygen required)
324        - added benchmark to automatically detect the best triangle LFO
325          implementation (currently either an integer math solution or a
326          di-harmonic approximation), automatic detection can be overriden
327          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
328          configure script argument though (mandatory for cross-compilation)
329        - do not automatically pick optimized gcc flags if the user already
330          provided some on his own (as CXXFLAGS)
331        - added compile time option to disable processing of All-Notes-Off MIDI
332          messages
333        - added compile time options to allow disabling the various audio and
334          MIDI drivers
335        - fixed automatic GCC CPU switch detection on PPC
336          (patch by Ebrahim Mayat)
337    
338      * Gigasampler format engine:
339        - extensive synthesis optimization
340          (reimplementation of EGs and LFO(s), removed synthesis parameter
341          prerendering and the synthesis parameter matrix in general, splitting
342          each audio fragment into subfragments now where each subfragment uses
343          constant pitch and filter coefficients. The volume coefficient is
344          linearly interpolated inside a subfragment, unless
345          --disable-interpolate-volume is set.)
346        - fine tuning of the EG modulation parameters
347        - improved filter cutoff calculation by adding support for the
348          following gig parameters: Cutoff freq (used when no cutoff
349          controller is defined), Control invert, Minimum cutoff, Velocity
350          curve and Velocity range. The keyboard tracking now scales
351          cutoff frequency instead of resonance.
352        - added support for gig parameter Resonance.
353        - fixed bug in sysex handling (patch by Juan Linietsky)
354        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
355          which can be overridden with --enable-global-attenuation
356        - EG fixes: made the length of "attack hold" stage more
357          accurate. Release stage can now start before attack stage
358          ends. Cancel release didn't work when sustain was zero. Attack
359          time now has a minimal value to prevent clicks.
360        - fixed pitch changes larger than one octave
361        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
362        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
363          all modes can be altered via standard GM messages, that is CC5 for
364          altering portamento time, CC65 for enabling / disabling portamento
365          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
366        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
367          parameter) and crossfade
368        - added support for the "attenuation controller threshold" gig
369          parameter
370        - added smoothing of volume changes caused by control change
371          messages
372        - sample loop parameters are now taken from the DimensionRegion
373          instead of the wave chunk
374        - fixed keyswitching for v3 gigs with a number of keyswitch splits
375          not equal to a power of two
376        - reimplementation of the filter algorithm. The new filter is more
377          accurate and supports all gig filter types, including bandreject
378          and lowpass turbo.
379        - real support for 24 bit samples - samples are not truncated to
380          16 bits anymore
381        - support for aftertouch (channel pressure, not polyphonic
382          aftertouch)
383        - LFO1 behaviour fixed (dampening from max volume instead of
384          amplifying from 0)
385    
386      * LSCP server:
387        - fixed application exit on broken pipe error (fixes bug #20)
388        - fixed the notification messages delay due to lack of
389          network activity (fixes bug #26)
390        - fixed parser bug which occured on space(s) within device parameters
391          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
392    
393      * audio driver:
394        - added aRts audio output driver (by no means RT safe)
395    
396      * MIDI driver:
397        - fixed legacy sysex code which caused dispatching of MIDI SysEx
398          messages several times instead of once
399        - API extension for MIDI drivers which already supply exact time stamps
400          for events (i.e. for offline rendering based MIDI drivers)
401        - added checks for bad MIDI data
402    
403      * linuxsampler application:
404        - show available sampler engine types on startup
405    
406      * general changes:
407        - support for muting sampler channels and solo mode of the same, two new
408          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
409          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
410          introduced for this, the behavior is the same like on a mixer console
411          (patch by Grigor Iliev, a bit adjusted). Also added configure option
412          --enable-process-muted-channels which can be used to enable the
413          processing of muted channels.
414        - support for sostenuto pedal
415        - support for monitoring the total number of active voices
416          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
417          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
418        - fixed some memory management errors
419        - fixed some concurrency problems that could lead to crashes when
420          LSCP commands were executed
421        - fixed crash when instrument loading failed previously on the same
422          sampler channel (fixes bug #36)
423    
424    Version 0.3.3 (15 July 2005)
425    
426      * packaging changes:
427        - fixed compilation with gcc 4.0
428    
429      * Gigasampler format engine:
430        - LFO preprocessing was performed even though the respective LFO was
431          disabled by the instrument patch (minor efficiency fix)
432        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
433          for volume ramp downs in the same fragment (needed for current voice
434          stealing implementation) then simply inform the user with a warning
435          about possible click sounds and reduce the volume ramp down
436          appropriately instead of cancelling the audio device connection
437    
438    Version 0.3.2 (24 June 2005)
439    
440      * packaging changes:
441      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
442        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
443      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
# Line 22  Version CVS HEAD (?) Line 459  Version CVS HEAD (?)
459        instead of when the respective voice is actually launched        instead of when the respective voice is actually launched
460        (fixes undefined behavior if stolen voices belonged to a key group -        (fixes undefined behavior if stolen voices belonged to a key group -
461        this case was followed by a "killed voice survived" error message)        this case was followed by a "killed voice survived" error message)
462        - fixed minor issue with null/silence samples
463          (those stole voices even though they don't need a voice at all which
464          resulted in "voice stealing didn't work out" messages)
465        - don't reset volume, pan, pitch and MIDI controller values on
466          instrument or audio output device change
467    
468    * LSCP server:    * LSCP server:
469      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
470      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
471        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
472    
473    * linuxsampler application:    * linuxsampler application:
474      - added command line parameters --lscp-addr and --lscp-port to override      - added command line parameters --lscp-addr and --lscp-port to override

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