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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1789 by iliev, Sat Nov 1 19:01:27 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        - notification events for stream/voice count statistics are now sent
31          only when there are actual changes
32    
33      * audio driver:
34        - removed the nonsense audio channel constraint (which was hard coded to
35          max. 100 audio channels) for most audio drivers
36        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
37          opposed to the LSCP specs
38        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
39          reflected the wrong value
40        - fixed a memory management bug in ASIO driver
41        - Makefile fix: JACK_CFLAGS wasn't used
42        - JACK: use jack_client_open instead of the deprecated
43          jack_client_new
44    
45      * MIDI driver:
46        - added JACK MIDI driver
47        - dispatch bank select as ordinary CC as well, the user might seriously
48          want to (mis)use it for some purpose ("fixed" in all current MIDI
49          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
50    
51      * instruments database:
52        - avoid time consuming samples scanning when adding instruments
53          to the instruments database
54        - added support for handling lost files in the instruments database
55        - Implemented option for adding instruments in separate directories
56          in the instruments database
57          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
58    
59      * Gigasampler format engine:
60        - fixed a memory leak that could happen when a channel was deleted
61          while notes were playing
62        - made it possible to load an instrument even if the audio thread
63          isn't running
64        - added partial support for the "Controller Triggered" MIDI rule,
65          enough for piano gigs with pedal noise samples
66        - minor fix: only mark FX sends as being modified if really the
67          respective FX send MIDI controller was used
68        - added support for GM global device volume SysEx message
69          (can be selected at compile time to either apply globally to the
70          whole sampler [default] or only to the sampler channels that are
71          connected to the respective MIDI input port the SysEx message arrived
72          on)
73        - bugfix: notes triggered at position 0 in the audio buffer were
74          sometimes wrongly killed in the same buffer, causing no sound to
75          be played
76        - added support for chromatic / drumkit mode Roland GS Sysex message
77          which is usally used to switch a part between chromatic sounds and
78          drumkit sounds (as opposed to their common default setting of MIDI
79          part 10 being a drumkit part and all other ones chromatic parts), in
80          LS however one can switch between the first 16 MIDI instrument maps
81          defined for the sampler
82        - made it possible to create multiple sample channels even if the
83          audio thread isn't running
84    
85      * LSCP server:
86        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
87          react on MIDI data arriving on certain sampler channels (so far only
88          Note-On and Note-Off events are sent via this LSCP event)
89        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
90          react on MIDI data arriving on certain MIDI input devices (so far only
91          Note-On and Note-Off events are sent via this LSCP event)
92        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
93          SET DB_INSTRUMENT FILE_PATH
94        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
95          frontends to send MIDI messages to specific sampler channel
96        - added two additional fields to GET FILE INSTRUMENT INFO command -
97          KEY_BINDINGS and KEYSWITCH_BINDINGS
98        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
99          was incorrect
100        - Optimized the retrieval of the MIDI instrument mappings
101    
102      * Bug fixes:
103        - fixed a crash which occurs when removing a sampler channel waiting
104          to start instrument loading after another channel
105    
106    
107    Version 0.5.1 (6 December 2007)
108    
109      * packaging changes:
110        - added autoconf checks for pthread library
111        - added autoconf check for pthread bug found on certain NPTL-enabled
112          glibc versions (see Gentoo bug report #194076)
113        - added autoconf checks for MS Windows
114    
115      * general changes:
116        - bugfix: the thread used by an editor plugin didn't die when the
117          editor closed
118        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
119          out all the space. operator--() did not apply size_mask after
120          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
121          order to avoid problems with the _NonVolatileReader functions.
122        - bugfix: Stream.h: added a missing divide by BytesPerSample in
123          GetWriteSpace(). Since this function is currently only used in
124          the stream's qsort() compare function, it didn't trigger any
125          bugs.
126        - Resampler.h, Synthesizer.h: cubic interpolation now works in
127          24bit mode too. Faster method to read 24bit words on little
128          endian machines (x86): replaced 3 byte reads + shifts with a 1
129          unaligned 32bit read and shift
130        - experimental support for MS Windows (MIDI input via MME, AUDIO
131          output via ASIO)
132        - made handling of SIGINT signal (Ctrl-C) a bit more robust
133        - support for monitoring the total number of active disk streams
134          (new LSCP commands: GET TOTAL_STREAM_COUNT,
135          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
136    
137      * AUDIO driver:
138        - added Windows ASIO low latency audio driver
139    
140      * MIDI driver:
141        - added MME Windows MIDI driver
142    
143      * LSCP server:
144        - added support for Windows style path / filenames, however with
145          forward slash path separators instead of backslash
146          (i.e. "C:/foo/bar.gig")
147        - allow naughty liblscp to send non-string device parameters within
148          apostrophes as well
149        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
150          "LIST FILE INSTRUMENTS <file>" and
151          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
152          about an arbitrary instrument file on the system where the sampler is
153          running on
154    
155    Version 0.5.0 (15 October 2007)
156    
157      * packaging changes:
158        - config.h is not going to be installed along with liblinuxsampler's
159          API header files anymore
160        - only the API relevant header (and source) files will be exported to
161          the Doxygen API documentation (explicitly listed in Doxyfile.in)
162        - added completely new XCode project files for Mac OSX which is now
163          capable to execute our autoconf environment, thus no need anymore
164          to maintain the compile time configuration file (osx/version.h) for
165          OSX manually (patch by Toshi Nagata)
166        - fixed buggy boolean --enable-foo / --disable-foo configure script
167          parameters
168        - global.h now only covers global definitions that are needed for the
169          C++ API header files, all implementation internal global definitions
170          are now in global_private.h
171        - atomic.h is not exposed to the C++ API anymore
172        - no need to include config.h anymore for using LS's API header files
173        - fixed warnings in API doc generation
174    
175      * general changes:
176        - replaced the old, confusing MIDI program change mechanism by a
177          flexible MIDI instrument mapper which allows to map arbitrary
178          (MIDI bank, MIDI program) pairs with arbitrary
179          (engine type, instrument file, file index) triplets which will be
180          loaded on the respective channel when such MIDI program change
181          messages arrive, beside that, each entry allows to define a life-time
182          strategy for the instrument, so the user can define whether the
183          instrument should i.e. be permanently loaded (to be able to switch
184          quickly among sounds) or i.e. loaded just on demand when the
185          respective program change arrives (to safe RAM space), as well as a
186          global volume factor for each entry, so the user can adjust the volume
187          dynamic of his mapped instrument collection without having to modify
188          the instrument files, also one can manage arbitrary amount of such
189          MIDI instrument maps and assign each sampler channel individually
190          a certain map, so that i.e. separation of normal instruments and
191          drumkits is possible
192        - new notification events for tracking changes to audio/MIDI devices,
193          MIDI instrument maps, MIDI instruments, FX sends, global volume.
194        - sampler was limited to load max. 200 instruments in the background
195          due to a constant size RingBuffer FIFO which is now replaced by a
196          dynamic (unlimited) size std::list FIFO
197        - added FX sends, these allow to route audio signals to arbitrary audio
198          output channels for being processed by external effect processors
199          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
200          controllers
201        - global (sampler wide) volume can now be controlled at runtime
202        - Implemented new, improved notification system
203        - fixed compilation errors regarding OSX
204          (patch by Toshi Nagata)
205        - implemented instruments database
206        - added support for escape sequences to the instruments database
207        - added highly experimental support for on-the-fly instrument editing
208          within the sampler's process (by using instrument editor plugins),
209          you'll notice the new "Registered instrument editors:" message on
210          startup, added a new LSCP command:
211          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
212          to spawn a matching instrument editor for the instrument on the
213          given sampler channel, the plugin path can be overridden at compile
214          time with ./configure --enable-plugin-dir=/some/dir
215        - added experimental code for synchronizing instrument editors hosted
216          in the sampler's process to safely edit instruments while playing
217          without a crash (hopefully) by either suspending single regions
218          wherever possible or if unavoidable whole engine(s)
219        - fixed several issues in fundamental "Thread" class: set scheduling
220          policy and priority on thread level, set a minimum stack size for
221          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
222          threads simply inherited properties of starting thread instead of
223          setting their own policy and priority
224        - minor fix in our automatic stack trace mechanism on crashes, the
225          main process did not wait for the stack trace process to finish
226          its output
227        - fixed some minor memory leaks
228        - reenabled assembly features support, at the moment only for
229          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
230        - minor assembly fix in x86 features detection (don't use the PIC
231          register, to avoid relocations in the text segment at runtime)
232        - POSIX callback functions of Thread.h are hidden
233    
234      * MIDI driver:
235        - dispatch bank select (MSB and LSB) messages
236    
237      * audio driver:
238        - the ALSA audio output driver parameters now reflect the correct
239          parameter value ranges for the respective selected sound card
240          (patch by Till Wimmer, a bit fixed and extended)
241    
242      * Gigasampler format engine:
243        - if a filter is used and EG2 finishes before EG1, let the voice
244          die when EG2 has finished (this fixes a problem with clicks and
245          voice starvation for some gigs)
246        - playback is no longer disabled during instrument loading
247        - all notes playing on a channel that changes its instrument keep
248          playing with the old instrument until they get a note off
249          command
250        - EG fix: a release value of zero could cause noises or crash
251        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
252        - EG fine tuning: when attack is zero the EG starts at a level
253          above max sustain level, which means that there is a decay phase
254          even if sustain is 100%
255        - more EG fixes: the level could sometimes go below zero and cause
256          noises or crashes
257        - minor fix of EGDecay (patch by Toshi Nagata)
258        - fixed compiler error when --enable-override-filter-type was
259          supplied to the configure script (fixes #46)
260        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
261          instead of a fix value
262        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
263          127 (solo mode) only kill voices if the respective mode really
264          changed
265    
266      * LSCP server:
267        - fixed compile time error for old Bison versions
268          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
269        - parser now supports extended ASCII character set
270          (up to ASCII code 255, i.e. includes now umlauts and accents)
271        - filename arguments in LSCP commands now allow to use escape
272          sequences, that is directly literal as one of: \', \", \\, \n, \r,
273          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
274          code value like \xf2) (fixes bug #24)
275        - the following LSCP commands now also support escape sequences for at
276          least one of their text-based parameters (i.e. name, description):
277          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
278          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
279          "SET DB_INSTRUMENT_DIRECTORY NAME",
280          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
281          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
282          "FIND DB_INSTRUMENT_DIRECTORIES"
283        - returns verbose syntax errors (line and column where syntax error
284          occured, the unexpected character and the actually expected, possible
285          character(s), the latter only if less than 5 possibilities)
286        - made sure that LSCP syntax is not affected by gigedit locale
287          settings
288        - bugfix regarding strings parameter lists: all comma separated lists
289          of strings were treated as being one string containing commas
290          (fixes #57)
291    
292      * Bug fixes:
293        - fixed crash occurring on certain LSCP scripts (Bug 39)
294        - another thread safety fix for lscp "load engine" and "set
295          channel audio output device"
296        - fixed a crash which occurs when reassigning the same engine
297          on a sampler channel with connected MIDI device
298        - fixed a crash which occurs when changing the number of ports of a MIDI
299          device connected to a sampler channel to number less then or equal
300          to the index of the port to which the sampler channel is connected.
301        - The previous bindings were not been disconnected when altering
302          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
303          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
304        - The active stream/voice count statistic was incorrect.
305        - notification events were not been sent for some sampler
306          channel changes
307        - added default min and max values to restrict the number of allowed
308          audio output channels and MIDI input ports
309        - the connection to the PCM interface is now closed when destroying
310          an audio output device
311        - files with slash in their path or filename could not be loaded
312    
313      * test cases:
314        - updated and fixed (haven't been touched in a while)
315    
316    Version 0.4.0 (24 November 2006)
317    
318      * packaging changes:
319        - changed deprecated copyright attribute to license; added ldconfig
320          to post-(un)install steps; added devel package for liblinuxsampler;
321          to linuxsampler.spec (RPM)
322      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
323        applications to link against liblinuxsampler        applications to link against liblinuxsampler
324      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 10  Version CVS HEAD (?) Line 328  Version CVS HEAD (?)
328        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
329        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
330        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
331        - do not automatically pick optimized gcc flags if the user already
332          provided some on his own (as CXXFLAGS)
333        - added compile time option to disable processing of All-Notes-Off MIDI
334          messages
335        - added compile time options to allow disabling the various audio and
336          MIDI drivers
337        - fixed automatic GCC CPU switch detection on PPC
338          (patch by Ebrahim Mayat)
339    
340    * Gigasampler format engine:    * Gigasampler format engine:
341      - extensive synthesis optimization      - extensive synthesis optimization
342        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
343        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
344        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
345        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
346        coefficients)        linearly interpolated inside a subfragment, unless
347          --disable-interpolate-volume is set.)
348      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
349      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
350        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
351        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
352        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
353        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
354        - added support for gig parameter Resonance.
355      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
356        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
357          which can be overridden with --enable-global-attenuation
358        - EG fixes: made the length of "attack hold" stage more
359          accurate. Release stage can now start before attack stage
360          ends. Cancel release didn't work when sustain was zero. Attack
361          time now has a minimal value to prevent clicks.
362        - fixed pitch changes larger than one octave
363        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
364        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
365          all modes can be altered via standard GM messages, that is CC5 for
366          altering portamento time, CC65 for enabling / disabling portamento
367          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
368        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
369          parameter) and crossfade
370        - added support for the "attenuation controller threshold" gig
371          parameter
372        - added smoothing of volume changes caused by control change
373          messages
374        - sample loop parameters are now taken from the DimensionRegion
375          instead of the wave chunk
376        - fixed keyswitching for v3 gigs with a number of keyswitch splits
377          not equal to a power of two
378        - reimplementation of the filter algorithm. The new filter is more
379          accurate and supports all gig filter types, including bandreject
380          and lowpass turbo.
381        - real support for 24 bit samples - samples are not truncated to
382          16 bits anymore
383        - support for aftertouch (channel pressure, not polyphonic
384          aftertouch)
385        - LFO1 behaviour fixed (dampening from max volume instead of
386          amplifying from 0)
387    
388    * LSCP server:    * LSCP server:
389      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
390        - fixed the notification messages delay due to lack of
391          network activity (fixes bug #26)
392        - fixed parser bug which occured on space(s) within device parameters
393          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
394    
395      * audio driver:
396        - added aRts audio output driver (by no means RT safe)
397    
398    * MIDI driver:    * MIDI driver:
399      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
400        messages several times instead of once        messages several times instead of once
401        - API extension for MIDI drivers which already supply exact time stamps
402          for events (i.e. for offline rendering based MIDI drivers)
403        - added checks for bad MIDI data
404    
405      * linuxsampler application:
406        - show available sampler engine types on startup
407    
408    * general changes:    * general changes:
409      - support for muting sampler channels and solo mode of the same, two new      - support for muting sampler channels and solo mode of the same, two new
# Line 41  Version CVS HEAD (?) Line 413  Version CVS HEAD (?)
413        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
414        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
415        processing of muted channels.        processing of muted channels.
416        - support for sostenuto pedal
417        - support for monitoring the total number of active voices
418          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
419          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
420        - fixed some memory management errors
421        - fixed some concurrency problems that could lead to crashes when
422          LSCP commands were executed
423        - fixed crash when instrument loading failed previously on the same
424          sampler channel (fixes bug #36)
425    
426  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
427    

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