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revision 729 by persson, Tue Jul 26 11:18:46 2005 UTC revision 1762 by schoenebeck, Fri Aug 29 17:33:02 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    
76      * LSCP server:
77        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
78          react on MIDI data arriving on certain sampler channels (so far only
79          Note-On and Note-Off events are sent via this LSCP event)
80        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
81          react on MIDI data arriving on certain MIDI input devices (so far only
82          Note-On and Note-Off events are sent via this LSCP event)
83        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
84          SET DB_INSTRUMENT FILE_PATH
85        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
86          was incorrect
87    
88      * Bug fixes:
89        - fixed a crash which occurs when removing a sampler channel waiting
90          to start instrument loading after another channel
91    
92    
93    Version 0.5.1 (6 December 2007)
94    
95      * packaging changes:
96        - added autoconf checks for pthread library
97        - added autoconf check for pthread bug found on certain NPTL-enabled
98          glibc versions (see Gentoo bug report #194076)
99        - added autoconf checks for MS Windows
100    
101      * general changes:
102        - bugfix: the thread used by an editor plugin didn't die when the
103          editor closed
104        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
105          out all the space. operator--() did not apply size_mask after
106          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
107          order to avoid problems with the _NonVolatileReader functions.
108        - bugfix: Stream.h: added a missing divide by BytesPerSample in
109          GetWriteSpace(). Since this function is currently only used in
110          the stream's qsort() compare function, it didn't trigger any
111          bugs.
112        - Resampler.h, Synthesizer.h: cubic interpolation now works in
113          24bit mode too. Faster method to read 24bit words on little
114          endian machines (x86): replaced 3 byte reads + shifts with a 1
115          unaligned 32bit read and shift
116        - experimental support for MS Windows (MIDI input via MME, AUDIO
117          output via ASIO)
118        - made handling of SIGINT signal (Ctrl-C) a bit more robust
119        - support for monitoring the total number of active disk streams
120          (new LSCP commands: GET TOTAL_STREAM_COUNT,
121          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
122    
123      * AUDIO driver:
124        - added Windows ASIO low latency audio driver
125    
126      * MIDI driver:
127        - added MME Windows MIDI driver
128    
129      * LSCP server:
130        - added support for Windows style path / filenames, however with
131          forward slash path separators instead of backslash
132          (i.e. "C:/foo/bar.gig")
133        - allow naughty liblscp to send non-string device parameters within
134          apostrophes as well
135        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
136          "LIST FILE INSTRUMENTS <file>" and
137          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
138          about an arbitrary instrument file on the system where the sampler is
139          running on
140    
141    Version 0.5.0 (15 October 2007)
142    
143      * packaging changes:
144        - config.h is not going to be installed along with liblinuxsampler's
145          API header files anymore
146        - only the API relevant header (and source) files will be exported to
147          the Doxygen API documentation (explicitly listed in Doxyfile.in)
148        - added completely new XCode project files for Mac OSX which is now
149          capable to execute our autoconf environment, thus no need anymore
150          to maintain the compile time configuration file (osx/version.h) for
151          OSX manually (patch by Toshi Nagata)
152        - fixed buggy boolean --enable-foo / --disable-foo configure script
153          parameters
154        - global.h now only covers global definitions that are needed for the
155          C++ API header files, all implementation internal global definitions
156          are now in global_private.h
157        - atomic.h is not exposed to the C++ API anymore
158        - no need to include config.h anymore for using LS's API header files
159        - fixed warnings in API doc generation
160    
161      * general changes:
162        - replaced the old, confusing MIDI program change mechanism by a
163          flexible MIDI instrument mapper which allows to map arbitrary
164          (MIDI bank, MIDI program) pairs with arbitrary
165          (engine type, instrument file, file index) triplets which will be
166          loaded on the respective channel when such MIDI program change
167          messages arrive, beside that, each entry allows to define a life-time
168          strategy for the instrument, so the user can define whether the
169          instrument should i.e. be permanently loaded (to be able to switch
170          quickly among sounds) or i.e. loaded just on demand when the
171          respective program change arrives (to safe RAM space), as well as a
172          global volume factor for each entry, so the user can adjust the volume
173          dynamic of his mapped instrument collection without having to modify
174          the instrument files, also one can manage arbitrary amount of such
175          MIDI instrument maps and assign each sampler channel individually
176          a certain map, so that i.e. separation of normal instruments and
177          drumkits is possible
178        - new notification events for tracking changes to audio/MIDI devices,
179          MIDI instrument maps, MIDI instruments, FX sends, global volume.
180        - sampler was limited to load max. 200 instruments in the background
181          due to a constant size RingBuffer FIFO which is now replaced by a
182          dynamic (unlimited) size std::list FIFO
183        - added FX sends, these allow to route audio signals to arbitrary audio
184          output channels for being processed by external effect processors
185          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
186          controllers
187        - global (sampler wide) volume can now be controlled at runtime
188        - Implemented new, improved notification system
189        - fixed compilation errors regarding OSX
190          (patch by Toshi Nagata)
191        - implemented instruments database
192        - added support for escape sequences to the instruments database
193        - added highly experimental support for on-the-fly instrument editing
194          within the sampler's process (by using instrument editor plugins),
195          you'll notice the new "Registered instrument editors:" message on
196          startup, added a new LSCP command:
197          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
198          to spawn a matching instrument editor for the instrument on the
199          given sampler channel, the plugin path can be overridden at compile
200          time with ./configure --enable-plugin-dir=/some/dir
201        - added experimental code for synchronizing instrument editors hosted
202          in the sampler's process to safely edit instruments while playing
203          without a crash (hopefully) by either suspending single regions
204          wherever possible or if unavoidable whole engine(s)
205        - fixed several issues in fundamental "Thread" class: set scheduling
206          policy and priority on thread level, set a minimum stack size for
207          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
208          threads simply inherited properties of starting thread instead of
209          setting their own policy and priority
210        - minor fix in our automatic stack trace mechanism on crashes, the
211          main process did not wait for the stack trace process to finish
212          its output
213        - fixed some minor memory leaks
214        - reenabled assembly features support, at the moment only for
215          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
216        - minor assembly fix in x86 features detection (don't use the PIC
217          register, to avoid relocations in the text segment at runtime)
218        - POSIX callback functions of Thread.h are hidden
219    
220      * MIDI driver:
221        - dispatch bank select (MSB and LSB) messages
222    
223      * audio driver:
224        - the ALSA audio output driver parameters now reflect the correct
225          parameter value ranges for the respective selected sound card
226          (patch by Till Wimmer, a bit fixed and extended)
227    
228      * Gigasampler format engine:
229        - if a filter is used and EG2 finishes before EG1, let the voice
230          die when EG2 has finished (this fixes a problem with clicks and
231          voice starvation for some gigs)
232        - playback is no longer disabled during instrument loading
233        - all notes playing on a channel that changes its instrument keep
234          playing with the old instrument until they get a note off
235          command
236        - EG fix: a release value of zero could cause noises or crash
237        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
238        - EG fine tuning: when attack is zero the EG starts at a level
239          above max sustain level, which means that there is a decay phase
240          even if sustain is 100%
241        - more EG fixes: the level could sometimes go below zero and cause
242          noises or crashes
243        - minor fix of EGDecay (patch by Toshi Nagata)
244        - fixed compiler error when --enable-override-filter-type was
245          supplied to the configure script (fixes #46)
246        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
247          instead of a fix value
248        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
249          127 (solo mode) only kill voices if the respective mode really
250          changed
251    
252      * LSCP server:
253        - fixed compile time error for old Bison versions
254          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
255        - parser now supports extended ASCII character set
256          (up to ASCII code 255, i.e. includes now umlauts and accents)
257        - filename arguments in LSCP commands now allow to use escape
258          sequences, that is directly literal as one of: \', \", \\, \n, \r,
259          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
260          code value like \xf2) (fixes bug #24)
261        - the following LSCP commands now also support escape sequences for at
262          least one of their text-based parameters (i.e. name, description):
263          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
264          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
265          "SET DB_INSTRUMENT_DIRECTORY NAME",
266          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
267          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
268          "FIND DB_INSTRUMENT_DIRECTORIES"
269        - returns verbose syntax errors (line and column where syntax error
270          occured, the unexpected character and the actually expected, possible
271          character(s), the latter only if less than 5 possibilities)
272        - made sure that LSCP syntax is not affected by gigedit locale
273          settings
274        - bugfix regarding strings parameter lists: all comma separated lists
275          of strings were treated as being one string containing commas
276          (fixes #57)
277    
278      * Bug fixes:
279        - fixed crash occurring on certain LSCP scripts (Bug 39)
280        - another thread safety fix for lscp "load engine" and "set
281          channel audio output device"
282        - fixed a crash which occurs when reassigning the same engine
283          on a sampler channel with connected MIDI device
284        - fixed a crash which occurs when changing the number of ports of a MIDI
285          device connected to a sampler channel to number less then or equal
286          to the index of the port to which the sampler channel is connected.
287        - The previous bindings were not been disconnected when altering
288          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
289          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
290        - The active stream/voice count statistic was incorrect.
291        - notification events were not been sent for some sampler
292          channel changes
293        - added default min and max values to restrict the number of allowed
294          audio output channels and MIDI input ports
295        - the connection to the PCM interface is now closed when destroying
296          an audio output device
297        - files with slash in their path or filename could not be loaded
298    
299      * test cases:
300        - updated and fixed (haven't been touched in a while)
301    
302    Version 0.4.0 (24 November 2006)
303    
304      * packaging changes:
305        - changed deprecated copyright attribute to license; added ldconfig
306          to post-(un)install steps; added devel package for liblinuxsampler;
307          to linuxsampler.spec (RPM)
308      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
309        applications to link against liblinuxsampler        applications to link against liblinuxsampler
310      - 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 314  Version CVS HEAD (?)
314        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
315        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
316        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
317        - do not automatically pick optimized gcc flags if the user already
318          provided some on his own (as CXXFLAGS)
319        - added compile time option to disable processing of All-Notes-Off MIDI
320          messages
321        - added compile time options to allow disabling the various audio and
322          MIDI drivers
323        - fixed automatic GCC CPU switch detection on PPC
324          (patch by Ebrahim Mayat)
325    
326    * Gigasampler format engine:    * Gigasampler format engine:
327        - extensive synthesis optimization
328          (reimplementation of EGs and LFO(s), removed synthesis parameter
329          prerendering and the synthesis parameter matrix in general, splitting
330          each audio fragment into subfragments now where each subfragment uses
331          constant pitch and filter coefficients. The volume coefficient is
332          linearly interpolated inside a subfragment, unless
333          --disable-interpolate-volume is set.)
334      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
335      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
336        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
337        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
338        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
339        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
340        - added support for gig parameter Resonance.
341        - fixed bug in sysex handling (patch by Juan Linietsky)
342        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
343          which can be overridden with --enable-global-attenuation
344        - EG fixes: made the length of "attack hold" stage more
345          accurate. Release stage can now start before attack stage
346          ends. Cancel release didn't work when sustain was zero. Attack
347          time now has a minimal value to prevent clicks.
348        - fixed pitch changes larger than one octave
349        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
350        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
351          all modes can be altered via standard GM messages, that is CC5 for
352          altering portamento time, CC65 for enabling / disabling portamento
353          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
354        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
355          parameter) and crossfade
356        - added support for the "attenuation controller threshold" gig
357          parameter
358        - added smoothing of volume changes caused by control change
359          messages
360        - sample loop parameters are now taken from the DimensionRegion
361          instead of the wave chunk
362        - fixed keyswitching for v3 gigs with a number of keyswitch splits
363          not equal to a power of two
364        - reimplementation of the filter algorithm. The new filter is more
365          accurate and supports all gig filter types, including bandreject
366          and lowpass turbo.
367        - real support for 24 bit samples - samples are not truncated to
368          16 bits anymore
369        - support for aftertouch (channel pressure, not polyphonic
370          aftertouch)
371        - LFO1 behaviour fixed (dampening from max volume instead of
372          amplifying from 0)
373    
374    * LSCP server:    * LSCP server:
375      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
376        - fixed the notification messages delay due to lack of
377          network activity (fixes bug #26)
378        - fixed parser bug which occured on space(s) within device parameters
379          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
380    
381      * audio driver:
382        - added aRts audio output driver (by no means RT safe)
383    
384      * MIDI driver:
385        - fixed legacy sysex code which caused dispatching of MIDI SysEx
386          messages several times instead of once
387        - API extension for MIDI drivers which already supply exact time stamps
388          for events (i.e. for offline rendering based MIDI drivers)
389        - added checks for bad MIDI data
390    
391      * linuxsampler application:
392        - show available sampler engine types on startup
393    
394    * general changes:    * general changes:
395      - 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 30  Version CVS HEAD (?) Line 399  Version CVS HEAD (?)
399        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
400        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
401        processing of muted channels.        processing of muted channels.
402        - support for sostenuto pedal
403        - support for monitoring the total number of active voices
404          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
405          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
406        - fixed some memory management errors
407        - fixed some concurrency problems that could lead to crashes when
408          LSCP commands were executed
409        - fixed crash when instrument loading failed previously on the same
410          sampler channel (fixes bug #36)
411    
412  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
413    

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