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revision 779 by iliev, Fri Sep 23 07:05:04 2005 UTC revision 1777 by persson, Mon Sep 15 16:58:10 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    
54      * Gigasampler format engine:
55        - fixed a memory leak that could happen when a channel was deleted
56          while notes were playing
57        - made it possible to load an instrument even if the audio thread
58          isn't running
59        - added partial support for the "Controller Triggered" MIDI rule,
60          enough for piano gigs with pedal noise samples
61        - minor fix: only mark FX sends as being modified if really the
62          respective FX send MIDI controller was used
63        - added support for GM global device volume SysEx message
64          (can be selected at compile time to either apply globally to the
65          whole sampler [default] or only to the sampler channels that are
66          connected to the respective MIDI input port the SysEx message arrived
67          on)
68        - bugfix: notes triggered at position 0 in the audio buffer were
69          sometimes wrongly killed in the same buffer, causing no sound to
70          be played
71        - added support for chromatic / drumkit mode Roland GS Sysex message
72          which is usally used to switch a part between chromatic sounds and
73          drumkit sounds (as opposed to their common default setting of MIDI
74          part 10 being a drumkit part and all other ones chromatic parts), in
75          LS however one can switch between the first 16 MIDI instrument maps
76          defined for the sampler
77        - made it possible to create multiple sample channels even if the
78          audio thread isn't running
79    
80      * LSCP server:
81        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
82          react on MIDI data arriving on certain sampler channels (so far only
83          Note-On and Note-Off events are sent via this LSCP event)
84        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
85          react on MIDI data arriving on certain MIDI input devices (so far only
86          Note-On and Note-Off events are sent via this LSCP event)
87        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
88          SET DB_INSTRUMENT FILE_PATH
89        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
90          frontends to send MIDI messages to specific sampler channel
91        - added two additional fields to GET FILE INSTRUMENT INFO command -
92          KEY_BINDINGS and KEYSWITCH_BINDINGS
93        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
94          was incorrect
95        - Optimized the retrieval of the MIDI instrument mappings
96    
97      * Bug fixes:
98        - fixed a crash which occurs when removing a sampler channel waiting
99          to start instrument loading after another channel
100    
101    
102    Version 0.5.1 (6 December 2007)
103    
104      * packaging changes:
105        - added autoconf checks for pthread library
106        - added autoconf check for pthread bug found on certain NPTL-enabled
107          glibc versions (see Gentoo bug report #194076)
108        - added autoconf checks for MS Windows
109    
110      * general changes:
111        - bugfix: the thread used by an editor plugin didn't die when the
112          editor closed
113        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
114          out all the space. operator--() did not apply size_mask after
115          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
116          order to avoid problems with the _NonVolatileReader functions.
117        - bugfix: Stream.h: added a missing divide by BytesPerSample in
118          GetWriteSpace(). Since this function is currently only used in
119          the stream's qsort() compare function, it didn't trigger any
120          bugs.
121        - Resampler.h, Synthesizer.h: cubic interpolation now works in
122          24bit mode too. Faster method to read 24bit words on little
123          endian machines (x86): replaced 3 byte reads + shifts with a 1
124          unaligned 32bit read and shift
125        - experimental support for MS Windows (MIDI input via MME, AUDIO
126          output via ASIO)
127        - made handling of SIGINT signal (Ctrl-C) a bit more robust
128        - support for monitoring the total number of active disk streams
129          (new LSCP commands: GET TOTAL_STREAM_COUNT,
130          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
131    
132      * AUDIO driver:
133        - added Windows ASIO low latency audio driver
134    
135      * MIDI driver:
136        - added MME Windows MIDI driver
137    
138      * LSCP server:
139        - added support for Windows style path / filenames, however with
140          forward slash path separators instead of backslash
141          (i.e. "C:/foo/bar.gig")
142        - allow naughty liblscp to send non-string device parameters within
143          apostrophes as well
144        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
145          "LIST FILE INSTRUMENTS <file>" and
146          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
147          about an arbitrary instrument file on the system where the sampler is
148          running on
149    
150    Version 0.5.0 (15 October 2007)
151    
152      * packaging changes:
153        - config.h is not going to be installed along with liblinuxsampler's
154          API header files anymore
155        - only the API relevant header (and source) files will be exported to
156          the Doxygen API documentation (explicitly listed in Doxyfile.in)
157        - added completely new XCode project files for Mac OSX which is now
158          capable to execute our autoconf environment, thus no need anymore
159          to maintain the compile time configuration file (osx/version.h) for
160          OSX manually (patch by Toshi Nagata)
161        - fixed buggy boolean --enable-foo / --disable-foo configure script
162          parameters
163        - global.h now only covers global definitions that are needed for the
164          C++ API header files, all implementation internal global definitions
165          are now in global_private.h
166        - atomic.h is not exposed to the C++ API anymore
167        - no need to include config.h anymore for using LS's API header files
168        - fixed warnings in API doc generation
169    
170      * general changes:
171        - replaced the old, confusing MIDI program change mechanism by a
172          flexible MIDI instrument mapper which allows to map arbitrary
173          (MIDI bank, MIDI program) pairs with arbitrary
174          (engine type, instrument file, file index) triplets which will be
175          loaded on the respective channel when such MIDI program change
176          messages arrive, beside that, each entry allows to define a life-time
177          strategy for the instrument, so the user can define whether the
178          instrument should i.e. be permanently loaded (to be able to switch
179          quickly among sounds) or i.e. loaded just on demand when the
180          respective program change arrives (to safe RAM space), as well as a
181          global volume factor for each entry, so the user can adjust the volume
182          dynamic of his mapped instrument collection without having to modify
183          the instrument files, also one can manage arbitrary amount of such
184          MIDI instrument maps and assign each sampler channel individually
185          a certain map, so that i.e. separation of normal instruments and
186          drumkits is possible
187        - new notification events for tracking changes to audio/MIDI devices,
188          MIDI instrument maps, MIDI instruments, FX sends, global volume.
189        - sampler was limited to load max. 200 instruments in the background
190          due to a constant size RingBuffer FIFO which is now replaced by a
191          dynamic (unlimited) size std::list FIFO
192        - added FX sends, these allow to route audio signals to arbitrary audio
193          output channels for being processed by external effect processors
194          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
195          controllers
196        - global (sampler wide) volume can now be controlled at runtime
197        - Implemented new, improved notification system
198        - fixed compilation errors regarding OSX
199          (patch by Toshi Nagata)
200        - implemented instruments database
201        - added support for escape sequences to the instruments database
202        - added highly experimental support for on-the-fly instrument editing
203          within the sampler's process (by using instrument editor plugins),
204          you'll notice the new "Registered instrument editors:" message on
205          startup, added a new LSCP command:
206          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
207          to spawn a matching instrument editor for the instrument on the
208          given sampler channel, the plugin path can be overridden at compile
209          time with ./configure --enable-plugin-dir=/some/dir
210        - added experimental code for synchronizing instrument editors hosted
211          in the sampler's process to safely edit instruments while playing
212          without a crash (hopefully) by either suspending single regions
213          wherever possible or if unavoidable whole engine(s)
214        - fixed several issues in fundamental "Thread" class: set scheduling
215          policy and priority on thread level, set a minimum stack size for
216          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
217          threads simply inherited properties of starting thread instead of
218          setting their own policy and priority
219        - minor fix in our automatic stack trace mechanism on crashes, the
220          main process did not wait for the stack trace process to finish
221          its output
222        - fixed some minor memory leaks
223        - reenabled assembly features support, at the moment only for
224          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
225        - minor assembly fix in x86 features detection (don't use the PIC
226          register, to avoid relocations in the text segment at runtime)
227        - POSIX callback functions of Thread.h are hidden
228    
229      * MIDI driver:
230        - dispatch bank select (MSB and LSB) messages
231    
232      * audio driver:
233        - the ALSA audio output driver parameters now reflect the correct
234          parameter value ranges for the respective selected sound card
235          (patch by Till Wimmer, a bit fixed and extended)
236    
237      * Gigasampler format engine:
238        - if a filter is used and EG2 finishes before EG1, let the voice
239          die when EG2 has finished (this fixes a problem with clicks and
240          voice starvation for some gigs)
241        - playback is no longer disabled during instrument loading
242        - all notes playing on a channel that changes its instrument keep
243          playing with the old instrument until they get a note off
244          command
245        - EG fix: a release value of zero could cause noises or crash
246        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
247        - EG fine tuning: when attack is zero the EG starts at a level
248          above max sustain level, which means that there is a decay phase
249          even if sustain is 100%
250        - more EG fixes: the level could sometimes go below zero and cause
251          noises or crashes
252        - minor fix of EGDecay (patch by Toshi Nagata)
253        - fixed compiler error when --enable-override-filter-type was
254          supplied to the configure script (fixes #46)
255        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
256          instead of a fix value
257        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
258          127 (solo mode) only kill voices if the respective mode really
259          changed
260    
261      * LSCP server:
262        - fixed compile time error for old Bison versions
263          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
264        - parser now supports extended ASCII character set
265          (up to ASCII code 255, i.e. includes now umlauts and accents)
266        - filename arguments in LSCP commands now allow to use escape
267          sequences, that is directly literal as one of: \', \", \\, \n, \r,
268          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
269          code value like \xf2) (fixes bug #24)
270        - the following LSCP commands now also support escape sequences for at
271          least one of their text-based parameters (i.e. name, description):
272          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
273          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
274          "SET DB_INSTRUMENT_DIRECTORY NAME",
275          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
276          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
277          "FIND DB_INSTRUMENT_DIRECTORIES"
278        - returns verbose syntax errors (line and column where syntax error
279          occured, the unexpected character and the actually expected, possible
280          character(s), the latter only if less than 5 possibilities)
281        - made sure that LSCP syntax is not affected by gigedit locale
282          settings
283        - bugfix regarding strings parameter lists: all comma separated lists
284          of strings were treated as being one string containing commas
285          (fixes #57)
286    
287      * Bug fixes:
288        - fixed crash occurring on certain LSCP scripts (Bug 39)
289        - another thread safety fix for lscp "load engine" and "set
290          channel audio output device"
291        - fixed a crash which occurs when reassigning the same engine
292          on a sampler channel with connected MIDI device
293        - fixed a crash which occurs when changing the number of ports of a MIDI
294          device connected to a sampler channel to number less then or equal
295          to the index of the port to which the sampler channel is connected.
296        - The previous bindings were not been disconnected when altering
297          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
298          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
299        - The active stream/voice count statistic was incorrect.
300        - notification events were not been sent for some sampler
301          channel changes
302        - added default min and max values to restrict the number of allowed
303          audio output channels and MIDI input ports
304        - the connection to the PCM interface is now closed when destroying
305          an audio output device
306        - files with slash in their path or filename could not be loaded
307    
308      * test cases:
309        - updated and fixed (haven't been touched in a while)
310    
311    Version 0.4.0 (24 November 2006)
312    
313      * packaging changes:
314        - changed deprecated copyright attribute to license; added ldconfig
315          to post-(un)install steps; added devel package for liblinuxsampler;
316          to linuxsampler.spec (RPM)
317      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
318        applications to link against liblinuxsampler        applications to link against liblinuxsampler
319      - 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 323  Version CVS HEAD (?)
323        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
324        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
325        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
326        - do not automatically pick optimized gcc flags if the user already
327          provided some on his own (as CXXFLAGS)
328        - added compile time option to disable processing of All-Notes-Off MIDI
329          messages
330        - added compile time options to allow disabling the various audio and
331          MIDI drivers
332        - fixed automatic GCC CPU switch detection on PPC
333          (patch by Ebrahim Mayat)
334    
335    * Gigasampler format engine:    * Gigasampler format engine:
336      - extensive synthesis optimization      - extensive synthesis optimization
337        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
338        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
339        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
340        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
341        coefficients)        linearly interpolated inside a subfragment, unless
342          --disable-interpolate-volume is set.)
343      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
344      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
345        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
346        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
347        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
348        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
349        - added support for gig parameter Resonance.
350      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
351        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
352          which can be overridden with --enable-global-attenuation
353        - EG fixes: made the length of "attack hold" stage more
354          accurate. Release stage can now start before attack stage
355          ends. Cancel release didn't work when sustain was zero. Attack
356          time now has a minimal value to prevent clicks.
357        - fixed pitch changes larger than one octave
358        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
359        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
360          all modes can be altered via standard GM messages, that is CC5 for
361          altering portamento time, CC65 for enabling / disabling portamento
362          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
363        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
364          parameter) and crossfade
365        - added support for the "attenuation controller threshold" gig
366          parameter
367        - added smoothing of volume changes caused by control change
368          messages
369        - sample loop parameters are now taken from the DimensionRegion
370          instead of the wave chunk
371        - fixed keyswitching for v3 gigs with a number of keyswitch splits
372          not equal to a power of two
373        - reimplementation of the filter algorithm. The new filter is more
374          accurate and supports all gig filter types, including bandreject
375          and lowpass turbo.
376        - real support for 24 bit samples - samples are not truncated to
377          16 bits anymore
378        - support for aftertouch (channel pressure, not polyphonic
379          aftertouch)
380        - LFO1 behaviour fixed (dampening from max volume instead of
381          amplifying from 0)
382    
383    * LSCP server:    * LSCP server:
384      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
385        - fixed the notification messages delay due to lack of
386          network activity (fixes bug #26)
387        - fixed parser bug which occured on space(s) within device parameters
388          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
389    
390      * audio driver:
391        - added aRts audio output driver (by no means RT safe)
392    
393    * MIDI driver:    * MIDI driver:
394      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
395        messages several times instead of once        messages several times instead of once
396        - API extension for MIDI drivers which already supply exact time stamps
397          for events (i.e. for offline rendering based MIDI drivers)
398        - added checks for bad MIDI data
399    
400      * linuxsampler application:
401        - show available sampler engine types on startup
402    
403    * general changes:    * general changes:
404      - 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 45  Version CVS HEAD (?) Line 412  Version CVS HEAD (?)
412      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
413        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
414        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
415        - fixed some memory management errors
416        - fixed some concurrency problems that could lead to crashes when
417          LSCP commands were executed
418        - fixed crash when instrument loading failed previously on the same
419          sampler channel (fixes bug #36)
420    
421  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
422    

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