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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1771 by iliev, Wed Sep 10 15:02:24 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    
29      * audio driver:
30        - removed the nonsense audio channel constraint (which was hard coded to
31          max. 100 audio channels) for most audio drivers
32        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
33          opposed to the LSCP specs
34        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
35          reflected the wrong value
36        - fixed a memory management bug in ASIO driver
37        - Makefile fix: JACK_CFLAGS wasn't used
38        - JACK: use jack_client_open instead of thedeprecated
39          jack_client_new
40    
41      * MIDI driver:
42        - added JACK MIDI driver
43        - dispatch bank select as ordinary CC as well, the user might seriously
44          want to (mis)use it for some purpose ("fixed" in all current MIDI
45          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
46    
47      * instruments database:
48        - avoid time consuming samples scanning when adding instruments
49          to the instruments database
50        - added support for handling lost files in the instruments database
51    
52      * Gigasampler format engine:
53        - fixed a memory leak that could happen when a channel was deleted
54          while notes were playing
55        - made it possible to load an instrument even if the audio thread
56          isn't running
57        - added partial support for the "Controller Triggered" MIDI rule,
58          enough for piano gigs with pedal noise samples
59        - minor fix: only mark FX sends as being modified if really the
60          respective FX send MIDI controller was used
61        - added support for GM global device volume SysEx message
62          (can be selected at compile time to either apply globally to the
63          whole sampler [default] or only to the sampler channels that are
64          connected to the respective MIDI input port the SysEx message arrived
65          on)
66        - bugfix: notes triggered at position 0 in the audio buffer were
67          sometimes wrongly killed in the same buffer, causing no sound to
68          be played
69        - added support for chromatic / drumkit mode Roland GS Sysex message
70          which is usally used to switch a part between chromatic sounds and
71          drumkit sounds (as opposed to their common default setting of MIDI
72          part 10 being a drumkit part and all other ones chromatic parts), in
73          LS however one can switch between the first 16 MIDI instrument maps
74          defined for the sampler
75        - made it possible to create multiple sample channels even if the
76          audio thread isn't running
77    
78      * LSCP server:
79        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
80          react on MIDI data arriving on certain sampler channels (so far only
81          Note-On and Note-Off events are sent via this LSCP event)
82        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
83          react on MIDI data arriving on certain MIDI input devices (so far only
84          Note-On and Note-Off events are sent via this LSCP event)
85        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
86          SET DB_INSTRUMENT FILE_PATH
87        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
88          frontends to send MIDI messages to specific sampler channel
89        - added two additional fields to GET FILE INSTRUMENT INFO command -
90          KEY_BINDINGS and KEYSWITCH_BINDINGS
91        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
92          was incorrect
93        - Optimized the retrieval of the MIDI instrument mappings
94    
95      * Bug fixes:
96        - fixed a crash which occurs when removing a sampler channel waiting
97          to start instrument loading after another channel
98    
99    
100    Version 0.5.1 (6 December 2007)
101    
102      * packaging changes:
103        - added autoconf checks for pthread library
104        - added autoconf check for pthread bug found on certain NPTL-enabled
105          glibc versions (see Gentoo bug report #194076)
106        - added autoconf checks for MS Windows
107    
108      * general changes:
109        - bugfix: the thread used by an editor plugin didn't die when the
110          editor closed
111        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
112          out all the space. operator--() did not apply size_mask after
113          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
114          order to avoid problems with the _NonVolatileReader functions.
115        - bugfix: Stream.h: added a missing divide by BytesPerSample in
116          GetWriteSpace(). Since this function is currently only used in
117          the stream's qsort() compare function, it didn't trigger any
118          bugs.
119        - Resampler.h, Synthesizer.h: cubic interpolation now works in
120          24bit mode too. Faster method to read 24bit words on little
121          endian machines (x86): replaced 3 byte reads + shifts with a 1
122          unaligned 32bit read and shift
123        - experimental support for MS Windows (MIDI input via MME, AUDIO
124          output via ASIO)
125        - made handling of SIGINT signal (Ctrl-C) a bit more robust
126        - support for monitoring the total number of active disk streams
127          (new LSCP commands: GET TOTAL_STREAM_COUNT,
128          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
129    
130      * AUDIO driver:
131        - added Windows ASIO low latency audio driver
132    
133      * MIDI driver:
134        - added MME Windows MIDI driver
135    
136      * LSCP server:
137        - added support for Windows style path / filenames, however with
138          forward slash path separators instead of backslash
139          (i.e. "C:/foo/bar.gig")
140        - allow naughty liblscp to send non-string device parameters within
141          apostrophes as well
142        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
143          "LIST FILE INSTRUMENTS <file>" and
144          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
145          about an arbitrary instrument file on the system where the sampler is
146          running on
147    
148    Version 0.5.0 (15 October 2007)
149    
150      * packaging changes:
151        - config.h is not going to be installed along with liblinuxsampler's
152          API header files anymore
153        - only the API relevant header (and source) files will be exported to
154          the Doxygen API documentation (explicitly listed in Doxyfile.in)
155        - added completely new XCode project files for Mac OSX which is now
156          capable to execute our autoconf environment, thus no need anymore
157          to maintain the compile time configuration file (osx/version.h) for
158          OSX manually (patch by Toshi Nagata)
159        - fixed buggy boolean --enable-foo / --disable-foo configure script
160          parameters
161        - global.h now only covers global definitions that are needed for the
162          C++ API header files, all implementation internal global definitions
163          are now in global_private.h
164        - atomic.h is not exposed to the C++ API anymore
165        - no need to include config.h anymore for using LS's API header files
166        - fixed warnings in API doc generation
167    
168      * general changes:
169        - replaced the old, confusing MIDI program change mechanism by a
170          flexible MIDI instrument mapper which allows to map arbitrary
171          (MIDI bank, MIDI program) pairs with arbitrary
172          (engine type, instrument file, file index) triplets which will be
173          loaded on the respective channel when such MIDI program change
174          messages arrive, beside that, each entry allows to define a life-time
175          strategy for the instrument, so the user can define whether the
176          instrument should i.e. be permanently loaded (to be able to switch
177          quickly among sounds) or i.e. loaded just on demand when the
178          respective program change arrives (to safe RAM space), as well as a
179          global volume factor for each entry, so the user can adjust the volume
180          dynamic of his mapped instrument collection without having to modify
181          the instrument files, also one can manage arbitrary amount of such
182          MIDI instrument maps and assign each sampler channel individually
183          a certain map, so that i.e. separation of normal instruments and
184          drumkits is possible
185        - new notification events for tracking changes to audio/MIDI devices,
186          MIDI instrument maps, MIDI instruments, FX sends, global volume.
187        - sampler was limited to load max. 200 instruments in the background
188          due to a constant size RingBuffer FIFO which is now replaced by a
189          dynamic (unlimited) size std::list FIFO
190        - added FX sends, these allow to route audio signals to arbitrary audio
191          output channels for being processed by external effect processors
192          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
193          controllers
194        - global (sampler wide) volume can now be controlled at runtime
195        - Implemented new, improved notification system
196        - fixed compilation errors regarding OSX
197          (patch by Toshi Nagata)
198        - implemented instruments database
199        - added support for escape sequences to the instruments database
200        - added highly experimental support for on-the-fly instrument editing
201          within the sampler's process (by using instrument editor plugins),
202          you'll notice the new "Registered instrument editors:" message on
203          startup, added a new LSCP command:
204          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
205          to spawn a matching instrument editor for the instrument on the
206          given sampler channel, the plugin path can be overridden at compile
207          time with ./configure --enable-plugin-dir=/some/dir
208        - added experimental code for synchronizing instrument editors hosted
209          in the sampler's process to safely edit instruments while playing
210          without a crash (hopefully) by either suspending single regions
211          wherever possible or if unavoidable whole engine(s)
212        - fixed several issues in fundamental "Thread" class: set scheduling
213          policy and priority on thread level, set a minimum stack size for
214          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
215          threads simply inherited properties of starting thread instead of
216          setting their own policy and priority
217        - minor fix in our automatic stack trace mechanism on crashes, the
218          main process did not wait for the stack trace process to finish
219          its output
220        - fixed some minor memory leaks
221        - reenabled assembly features support, at the moment only for
222          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
223        - minor assembly fix in x86 features detection (don't use the PIC
224          register, to avoid relocations in the text segment at runtime)
225        - POSIX callback functions of Thread.h are hidden
226    
227      * MIDI driver:
228        - dispatch bank select (MSB and LSB) messages
229    
230      * audio driver:
231        - the ALSA audio output driver parameters now reflect the correct
232          parameter value ranges for the respective selected sound card
233          (patch by Till Wimmer, a bit fixed and extended)
234    
235      * Gigasampler format engine:
236        - if a filter is used and EG2 finishes before EG1, let the voice
237          die when EG2 has finished (this fixes a problem with clicks and
238          voice starvation for some gigs)
239        - playback is no longer disabled during instrument loading
240        - all notes playing on a channel that changes its instrument keep
241          playing with the old instrument until they get a note off
242          command
243        - EG fix: a release value of zero could cause noises or crash
244        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
245        - EG fine tuning: when attack is zero the EG starts at a level
246          above max sustain level, which means that there is a decay phase
247          even if sustain is 100%
248        - more EG fixes: the level could sometimes go below zero and cause
249          noises or crashes
250        - minor fix of EGDecay (patch by Toshi Nagata)
251        - fixed compiler error when --enable-override-filter-type was
252          supplied to the configure script (fixes #46)
253        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
254          instead of a fix value
255        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
256          127 (solo mode) only kill voices if the respective mode really
257          changed
258    
259      * LSCP server:
260        - fixed compile time error for old Bison versions
261          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
262        - parser now supports extended ASCII character set
263          (up to ASCII code 255, i.e. includes now umlauts and accents)
264        - filename arguments in LSCP commands now allow to use escape
265          sequences, that is directly literal as one of: \', \", \\, \n, \r,
266          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
267          code value like \xf2) (fixes bug #24)
268        - the following LSCP commands now also support escape sequences for at
269          least one of their text-based parameters (i.e. name, description):
270          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
271          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
272          "SET DB_INSTRUMENT_DIRECTORY NAME",
273          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
274          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
275          "FIND DB_INSTRUMENT_DIRECTORIES"
276        - returns verbose syntax errors (line and column where syntax error
277          occured, the unexpected character and the actually expected, possible
278          character(s), the latter only if less than 5 possibilities)
279        - made sure that LSCP syntax is not affected by gigedit locale
280          settings
281        - bugfix regarding strings parameter lists: all comma separated lists
282          of strings were treated as being one string containing commas
283          (fixes #57)
284    
285      * Bug fixes:
286        - fixed crash occurring on certain LSCP scripts (Bug 39)
287        - another thread safety fix for lscp "load engine" and "set
288          channel audio output device"
289        - fixed a crash which occurs when reassigning the same engine
290          on a sampler channel with connected MIDI device
291        - fixed a crash which occurs when changing the number of ports of a MIDI
292          device connected to a sampler channel to number less then or equal
293          to the index of the port to which the sampler channel is connected.
294        - The previous bindings were not been disconnected when altering
295          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
296          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
297        - The active stream/voice count statistic was incorrect.
298        - notification events were not been sent for some sampler
299          channel changes
300        - added default min and max values to restrict the number of allowed
301          audio output channels and MIDI input ports
302        - the connection to the PCM interface is now closed when destroying
303          an audio output device
304        - files with slash in their path or filename could not be loaded
305    
306      * test cases:
307        - updated and fixed (haven't been touched in a while)
308    
309    Version 0.4.0 (24 November 2006)
310    
311      * packaging changes:
312        - changed deprecated copyright attribute to license; added ldconfig
313          to post-(un)install steps; added devel package for liblinuxsampler;
314          to linuxsampler.spec (RPM)
315      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
316        applications to link against liblinuxsampler        applications to link against liblinuxsampler
317      - 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 321  Version CVS HEAD (?)
321        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
322        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
323        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
324        - do not automatically pick optimized gcc flags if the user already
325          provided some on his own (as CXXFLAGS)
326        - added compile time option to disable processing of All-Notes-Off MIDI
327          messages
328        - added compile time options to allow disabling the various audio and
329          MIDI drivers
330        - fixed automatic GCC CPU switch detection on PPC
331          (patch by Ebrahim Mayat)
332    
333    * Gigasampler format engine:    * Gigasampler format engine:
334      - extensive synthesis optimization      - extensive synthesis optimization
335        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
336        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
337        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
338        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
339        coefficients)        linearly interpolated inside a subfragment, unless
340          --disable-interpolate-volume is set.)
341      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
342      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
343        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
344        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
345        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
346        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
347        - added support for gig parameter Resonance.
348      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
349        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
350          which can be overridden with --enable-global-attenuation
351        - EG fixes: made the length of "attack hold" stage more
352          accurate. Release stage can now start before attack stage
353          ends. Cancel release didn't work when sustain was zero. Attack
354          time now has a minimal value to prevent clicks.
355        - fixed pitch changes larger than one octave
356        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
357        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
358          all modes can be altered via standard GM messages, that is CC5 for
359          altering portamento time, CC65 for enabling / disabling portamento
360          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
361        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
362          parameter) and crossfade
363        - added support for the "attenuation controller threshold" gig
364          parameter
365        - added smoothing of volume changes caused by control change
366          messages
367        - sample loop parameters are now taken from the DimensionRegion
368          instead of the wave chunk
369        - fixed keyswitching for v3 gigs with a number of keyswitch splits
370          not equal to a power of two
371        - reimplementation of the filter algorithm. The new filter is more
372          accurate and supports all gig filter types, including bandreject
373          and lowpass turbo.
374        - real support for 24 bit samples - samples are not truncated to
375          16 bits anymore
376        - support for aftertouch (channel pressure, not polyphonic
377          aftertouch)
378        - LFO1 behaviour fixed (dampening from max volume instead of
379          amplifying from 0)
380    
381    * LSCP server:    * LSCP server:
382      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
383        - fixed the notification messages delay due to lack of
384          network activity (fixes bug #26)
385        - fixed parser bug which occured on space(s) within device parameters
386          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
387    
388      * audio driver:
389        - added aRts audio output driver (by no means RT safe)
390    
391    * MIDI driver:    * MIDI driver:
392      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
393        messages several times instead of once        messages several times instead of once
394        - API extension for MIDI drivers which already supply exact time stamps
395          for events (i.e. for offline rendering based MIDI drivers)
396        - added checks for bad MIDI data
397    
398      * linuxsampler application:
399        - show available sampler engine types on startup
400    
401    * general changes:    * general changes:
402      - 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 406  Version CVS HEAD (?)
406        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
407        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
408        processing of muted channels.        processing of muted channels.
409        - support for sostenuto pedal
410        - support for monitoring the total number of active voices
411          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
412          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
413        - fixed some memory management errors
414        - fixed some concurrency problems that could lead to crashes when
415          LSCP commands were executed
416        - fixed crash when instrument loading failed previously on the same
417          sampler channel (fixes bug #36)
418    
419  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
420    

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