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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1750 by schoenebeck, Thu Jul 10 15:00:38 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        - bugfix: notes triggered at position 0 in the audio buffer were
63          sometimes wrongly killed in the same buffer, causing no sound to
64          be played
65        - added support for chromatic / drumkit mode Roland GS Sysex message
66          which is usally used to switch a part between chromatic sounds and
67          drumkit sounds (as opposed to their common default setting of MIDI
68          part 10 being a drumkit part and all other ones chromatic parts), in
69          LS however one can switch between the first 16 MIDI instrument maps
70          defined for the sampler
71    
72      * LSCP server:
73        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
74          react on MIDI data arriving on certain sampler channels (so far only
75          Note-On and Note-Off events are sent via this LSCP event)
76        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
77          react on MIDI data arriving on certain MIDI input devices (so far only
78          Note-On and Note-Off events are sent via this LSCP event)
79        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
80          SET DB_INSTRUMENT FILE_PATH
81    
82    Version 0.5.1 (6 December 2007)
83    
84      * packaging changes:
85        - added autoconf checks for pthread library
86        - added autoconf check for pthread bug found on certain NPTL-enabled
87          glibc versions (see Gentoo bug report #194076)
88        - added autoconf checks for MS Windows
89    
90      * general changes:
91        - bugfix: the thread used by an editor plugin didn't die when the
92          editor closed
93        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
94          out all the space. operator--() did not apply size_mask after
95          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
96          order to avoid problems with the _NonVolatileReader functions.
97        - bugfix: Stream.h: added a missing divide by BytesPerSample in
98          GetWriteSpace(). Since this function is currently only used in
99          the stream's qsort() compare function, it didn't trigger any
100          bugs.
101        - Resampler.h, Synthesizer.h: cubic interpolation now works in
102          24bit mode too. Faster method to read 24bit words on little
103          endian machines (x86): replaced 3 byte reads + shifts with a 1
104          unaligned 32bit read and shift
105        - experimental support for MS Windows (MIDI input via MME, AUDIO
106          output via ASIO)
107        - made handling of SIGINT signal (Ctrl-C) a bit more robust
108        - support for monitoring the total number of active disk streams
109          (new LSCP commands: GET TOTAL_STREAM_COUNT,
110          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
111    
112      * AUDIO driver:
113        - added Windows ASIO low latency audio driver
114    
115      * MIDI driver:
116        - added MME Windows MIDI driver
117    
118      * LSCP server:
119        - added support for Windows style path / filenames, however with
120          forward slash path separators instead of backslash
121          (i.e. "C:/foo/bar.gig")
122        - allow naughty liblscp to send non-string device parameters within
123          apostrophes as well
124        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
125          "LIST FILE INSTRUMENTS <file>" and
126          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
127          about an arbitrary instrument file on the system where the sampler is
128          running on
129    
130    Version 0.5.0 (15 October 2007)
131    
132      * packaging changes:
133        - config.h is not going to be installed along with liblinuxsampler's
134          API header files anymore
135        - only the API relevant header (and source) files will be exported to
136          the Doxygen API documentation (explicitly listed in Doxyfile.in)
137        - added completely new XCode project files for Mac OSX which is now
138          capable to execute our autoconf environment, thus no need anymore
139          to maintain the compile time configuration file (osx/version.h) for
140          OSX manually (patch by Toshi Nagata)
141        - fixed buggy boolean --enable-foo / --disable-foo configure script
142          parameters
143        - global.h now only covers global definitions that are needed for the
144          C++ API header files, all implementation internal global definitions
145          are now in global_private.h
146        - atomic.h is not exposed to the C++ API anymore
147        - no need to include config.h anymore for using LS's API header files
148        - fixed warnings in API doc generation
149    
150      * general changes:
151        - replaced the old, confusing MIDI program change mechanism by a
152          flexible MIDI instrument mapper which allows to map arbitrary
153          (MIDI bank, MIDI program) pairs with arbitrary
154          (engine type, instrument file, file index) triplets which will be
155          loaded on the respective channel when such MIDI program change
156          messages arrive, beside that, each entry allows to define a life-time
157          strategy for the instrument, so the user can define whether the
158          instrument should i.e. be permanently loaded (to be able to switch
159          quickly among sounds) or i.e. loaded just on demand when the
160          respective program change arrives (to safe RAM space), as well as a
161          global volume factor for each entry, so the user can adjust the volume
162          dynamic of his mapped instrument collection without having to modify
163          the instrument files, also one can manage arbitrary amount of such
164          MIDI instrument maps and assign each sampler channel individually
165          a certain map, so that i.e. separation of normal instruments and
166          drumkits is possible
167        - new notification events for tracking changes to audio/MIDI devices,
168          MIDI instrument maps, MIDI instruments, FX sends, global volume.
169        - sampler was limited to load max. 200 instruments in the background
170          due to a constant size RingBuffer FIFO which is now replaced by a
171          dynamic (unlimited) size std::list FIFO
172        - added FX sends, these allow to route audio signals to arbitrary audio
173          output channels for being processed by external effect processors
174          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
175          controllers
176        - global (sampler wide) volume can now be controlled at runtime
177        - Implemented new, improved notification system
178        - fixed compilation errors regarding OSX
179          (patch by Toshi Nagata)
180        - implemented instruments database
181        - added support for escape sequences to the instruments database
182        - added highly experimental support for on-the-fly instrument editing
183          within the sampler's process (by using instrument editor plugins),
184          you'll notice the new "Registered instrument editors:" message on
185          startup, added a new LSCP command:
186          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
187          to spawn a matching instrument editor for the instrument on the
188          given sampler channel, the plugin path can be overridden at compile
189          time with ./configure --enable-plugin-dir=/some/dir
190        - added experimental code for synchronizing instrument editors hosted
191          in the sampler's process to safely edit instruments while playing
192          without a crash (hopefully) by either suspending single regions
193          wherever possible or if unavoidable whole engine(s)
194        - fixed several issues in fundamental "Thread" class: set scheduling
195          policy and priority on thread level, set a minimum stack size for
196          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
197          threads simply inherited properties of starting thread instead of
198          setting their own policy and priority
199        - minor fix in our automatic stack trace mechanism on crashes, the
200          main process did not wait for the stack trace process to finish
201          its output
202        - fixed some minor memory leaks
203        - reenabled assembly features support, at the moment only for
204          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
205        - minor assembly fix in x86 features detection (don't use the PIC
206          register, to avoid relocations in the text segment at runtime)
207        - POSIX callback functions of Thread.h are hidden
208    
209      * MIDI driver:
210        - dispatch bank select (MSB and LSB) messages
211    
212      * audio driver:
213        - the ALSA audio output driver parameters now reflect the correct
214          parameter value ranges for the respective selected sound card
215          (patch by Till Wimmer, a bit fixed and extended)
216    
217      * Gigasampler format engine:
218        - if a filter is used and EG2 finishes before EG1, let the voice
219          die when EG2 has finished (this fixes a problem with clicks and
220          voice starvation for some gigs)
221        - playback is no longer disabled during instrument loading
222        - all notes playing on a channel that changes its instrument keep
223          playing with the old instrument until they get a note off
224          command
225        - EG fix: a release value of zero could cause noises or crash
226        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
227        - EG fine tuning: when attack is zero the EG starts at a level
228          above max sustain level, which means that there is a decay phase
229          even if sustain is 100%
230        - more EG fixes: the level could sometimes go below zero and cause
231          noises or crashes
232        - minor fix of EGDecay (patch by Toshi Nagata)
233        - fixed compiler error when --enable-override-filter-type was
234          supplied to the configure script (fixes #46)
235        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
236          instead of a fix value
237        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
238          127 (solo mode) only kill voices if the respective mode really
239          changed
240    
241      * LSCP server:
242        - fixed compile time error for old Bison versions
243          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
244        - parser now supports extended ASCII character set
245          (up to ASCII code 255, i.e. includes now umlauts and accents)
246        - filename arguments in LSCP commands now allow to use escape
247          sequences, that is directly literal as one of: \', \", \\, \n, \r,
248          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
249          code value like \xf2) (fixes bug #24)
250        - the following LSCP commands now also support escape sequences for at
251          least one of their text-based parameters (i.e. name, description):
252          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
253          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
254          "SET DB_INSTRUMENT_DIRECTORY NAME",
255          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
256          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
257          "FIND DB_INSTRUMENT_DIRECTORIES"
258        - returns verbose syntax errors (line and column where syntax error
259          occured, the unexpected character and the actually expected, possible
260          character(s), the latter only if less than 5 possibilities)
261        - made sure that LSCP syntax is not affected by gigedit locale
262          settings
263        - bugfix regarding strings parameter lists: all comma separated lists
264          of strings were treated as being one string containing commas
265          (fixes #57)
266    
267      * Bug fixes:
268        - fixed crash occurring on certain LSCP scripts (Bug 39)
269        - another thread safety fix for lscp "load engine" and "set
270          channel audio output device"
271        - fixed a crash which occurs when reassigning the same engine
272          on a sampler channel with connected MIDI device
273        - fixed a crash which occurs when changing the number of ports of a MIDI
274          device connected to a sampler channel to number less then or equal
275          to the index of the port to which the sampler channel is connected.
276        - The previous bindings were not been disconnected when altering
277          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
278          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
279        - The active stream/voice count statistic was incorrect.
280        - notification events were not been sent for some sampler
281          channel changes
282        - added default min and max values to restrict the number of allowed
283          audio output channels and MIDI input ports
284        - the connection to the PCM interface is now closed when destroying
285          an audio output device
286        - files with slash in their path or filename could not be loaded
287    
288      * test cases:
289        - updated and fixed (haven't been touched in a while)
290    
291    Version 0.4.0 (24 November 2006)
292    
293      * packaging changes:
294        - changed deprecated copyright attribute to license; added ldconfig
295          to post-(un)install steps; added devel package for liblinuxsampler;
296          to linuxsampler.spec (RPM)
297      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
298        applications to link against liblinuxsampler        applications to link against liblinuxsampler
299      - 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 303  Version CVS HEAD (?)
303        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
304        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
305        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
306        - do not automatically pick optimized gcc flags if the user already
307          provided some on his own (as CXXFLAGS)
308        - added compile time option to disable processing of All-Notes-Off MIDI
309          messages
310        - added compile time options to allow disabling the various audio and
311          MIDI drivers
312        - fixed automatic GCC CPU switch detection on PPC
313          (patch by Ebrahim Mayat)
314    
315    * Gigasampler format engine:    * Gigasampler format engine:
316      - extensive synthesis optimization      - extensive synthesis optimization
317        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
318        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
319        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
320        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
321        coefficients)        linearly interpolated inside a subfragment, unless
322          --disable-interpolate-volume is set.)
323      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
324      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
325        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
326        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
327        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
328        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
329        - added support for gig parameter Resonance.
330      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
331        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
332          which can be overridden with --enable-global-attenuation
333        - EG fixes: made the length of "attack hold" stage more
334          accurate. Release stage can now start before attack stage
335          ends. Cancel release didn't work when sustain was zero. Attack
336          time now has a minimal value to prevent clicks.
337        - fixed pitch changes larger than one octave
338        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
339        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
340          all modes can be altered via standard GM messages, that is CC5 for
341          altering portamento time, CC65 for enabling / disabling portamento
342          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
343        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
344          parameter) and crossfade
345        - added support for the "attenuation controller threshold" gig
346          parameter
347        - added smoothing of volume changes caused by control change
348          messages
349        - sample loop parameters are now taken from the DimensionRegion
350          instead of the wave chunk
351        - fixed keyswitching for v3 gigs with a number of keyswitch splits
352          not equal to a power of two
353        - reimplementation of the filter algorithm. The new filter is more
354          accurate and supports all gig filter types, including bandreject
355          and lowpass turbo.
356        - real support for 24 bit samples - samples are not truncated to
357          16 bits anymore
358        - support for aftertouch (channel pressure, not polyphonic
359          aftertouch)
360        - LFO1 behaviour fixed (dampening from max volume instead of
361          amplifying from 0)
362    
363    * LSCP server:    * LSCP server:
364      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
365        - fixed the notification messages delay due to lack of
366          network activity (fixes bug #26)
367        - fixed parser bug which occured on space(s) within device parameters
368          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
369    
370      * audio driver:
371        - added aRts audio output driver (by no means RT safe)
372    
373    * MIDI driver:    * MIDI driver:
374      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
375        messages several times instead of once        messages several times instead of once
376        - API extension for MIDI drivers which already supply exact time stamps
377          for events (i.e. for offline rendering based MIDI drivers)
378        - added checks for bad MIDI data
379    
380      * linuxsampler application:
381        - show available sampler engine types on startup
382    
383    * general changes:    * general changes:
384      - 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 388  Version CVS HEAD (?)
388        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
389        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
390        processing of muted channels.        processing of muted channels.
391        - support for sostenuto pedal
392        - support for monitoring the total number of active voices
393          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
394          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
395        - fixed some memory management errors
396        - fixed some concurrency problems that could lead to crashes when
397          LSCP commands were executed
398        - fixed crash when instrument loading failed previously on the same
399          sampler channel (fixes bug #36)
400    
401  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
402    

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