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revision 831 by persson, Sat Jan 28 16:55:30 2006 UTC revision 1794 by persson, Sun Nov 30 09:10:07 2008 UTC
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1  Version CVS HEAD (?)  Version CVS HEAD (?)
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        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
10        - fixed configure so it detects x86_64 (#107)
12      * general changes:
13        - bugfix: on some POSIX systems instrument editor plugins refused to
14          load as we used a non-portable Linux specific struct field
15          (fixes bug #70, patch by Ronald Baljeu)
16        - fixed endless loop which occured when loading an instrument editor
17          plugin DLL on Windows systems failed
18        - fixed memory leaks that occurred when liblinuxsampler was unloaded
19        - optimized the SynchronizedConfig class so it doesn't wait
20          unnecessarily long after an update
21        - added support for notifying instrument editors on note-on / note-off
22          events (e.g. to highlight the pressed keys on the virtual keyboard
23          of gigedit)
24        - added support for triggering notes by instrument editors (see above)
25        - be verbose on DLL load errors (on Linux)
26        - fixed di-harmonic triangle LFO implementation (this LFO implementation
27          is only used by very few systems, most pick the int math
28          implementation, which is usually faster)
29        - fixes for audio drivers with varying buffer sizes
30        - experimental support for running LinuxSampler as a DSSI, LV2 and
31          VST plugin
32        - notification events for stream/voice count statistics are now sent
33          only when there are actual changes
34        - added memory ordering constraints to improve stability on
35          multi-core and multi-cpu systems
37      * audio driver:
38        - removed the nonsense audio channel constraint (which was hard coded to
39          max. 100 audio channels) for most audio drivers
40        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
41          opposed to the LSCP specs
42        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
43          reflected the wrong value
44        - fixed a memory management bug in ASIO driver
45        - Makefile fix: JACK_CFLAGS wasn't used
46        - JACK: use jack_client_open instead of the deprecated
47          jack_client_new
49      * MIDI driver:
50        - added JACK MIDI driver
51        - dispatch bank select as ordinary CC as well, the user might seriously
52          want to (mis)use it for some purpose ("fixed" in all current MIDI
53          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
55      * instruments database:
56        - avoid time consuming samples scanning when adding instruments
57          to the instruments database
58        - added support for handling lost files in the instruments database
59        - Implemented option for adding instruments in separate directories
60          in the instruments database
61          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
63      * Gigasampler format engine:
64        - fixed a memory leak that could happen when a channel was deleted
65          while notes were playing
66        - made it possible to load an instrument even if the audio thread
67          isn't running
68        - added partial support for the "Controller Triggered" MIDI rule,
69          enough for piano gigs with pedal noise samples
70        - minor fix: only mark FX sends as being modified if really the
71          respective FX send MIDI controller was used
72        - added support for GM global device volume SysEx message
73          (can be selected at compile time to either apply globally to the
74          whole sampler [default] or only to the sampler channels that are
75          connected to the respective MIDI input port the SysEx message arrived
76          on)
77        - bugfix: notes triggered at position 0 in the audio buffer were
78          sometimes wrongly killed in the same buffer, causing no sound to
79          be played
80        - added support for chromatic / drumkit mode Roland GS Sysex message
81          which is usally used to switch a part between chromatic sounds and
82          drumkit sounds (as opposed to their common default setting of MIDI
83          part 10 being a drumkit part and all other ones chromatic parts), in
84          LS however one can switch between the first 16 MIDI instrument maps
85          defined for the sampler
86        - made it possible to create multiple sample channels even if the
87          audio thread isn't running
89      * LSCP server:
90        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
91          react on MIDI data arriving on certain sampler channels (so far only
92          Note-On and Note-Off events are sent via this LSCP event)
93        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
94          react on MIDI data arriving on certain MIDI input devices (so far only
95          Note-On and Note-Off events are sent via this LSCP event)
96        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
98        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
99          frontends to send MIDI messages to specific sampler channel
100        - added two additional fields to GET FILE INSTRUMENT INFO command -
102        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
103          was incorrect
104        - Optimized the retrieval of the MIDI instrument mappings
106      * Bug fixes:
107        - fixed a crash which occurs when removing a sampler channel waiting
108          to start instrument loading after another channel
111    Version 0.5.1 (6 December 2007)
113      * packaging changes:
114        - added autoconf checks for pthread library
115        - added autoconf check for pthread bug found on certain NPTL-enabled
116          glibc versions (see Gentoo bug report #194076)
117        - added autoconf checks for MS Windows
119      * general changes:
120        - bugfix: the thread used by an editor plugin didn't die when the
121          editor closed
122        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
123          out all the space. operator--() did not apply size_mask after
124          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
125          order to avoid problems with the _NonVolatileReader functions.
126        - bugfix: Stream.h: added a missing divide by BytesPerSample in
127          GetWriteSpace(). Since this function is currently only used in
128          the stream's qsort() compare function, it didn't trigger any
129          bugs.
130        - Resampler.h, Synthesizer.h: cubic interpolation now works in
131          24bit mode too. Faster method to read 24bit words on little
132          endian machines (x86): replaced 3 byte reads + shifts with a 1
133          unaligned 32bit read and shift
134        - experimental support for MS Windows (MIDI input via MME, AUDIO
135          output via ASIO)
136        - made handling of SIGINT signal (Ctrl-C) a bit more robust
137        - support for monitoring the total number of active disk streams
138          (new LSCP commands: GET TOTAL_STREAM_COUNT,
141      * AUDIO driver:
142        - added Windows ASIO low latency audio driver
144      * MIDI driver:
145        - added MME Windows MIDI driver
147      * LSCP server:
148        - added support for Windows style path / filenames, however with
149          forward slash path separators instead of backslash
150          (i.e. "C:/foo/bar.gig")
151        - allow naughty liblscp to send non-string device parameters within
152          apostrophes as well
153        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
154          "LIST FILE INSTRUMENTS <file>" and
155          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
156          about an arbitrary instrument file on the system where the sampler is
157          running on
159    Version 0.5.0 (15 October 2007)
161      * packaging changes:
162        - config.h is not going to be installed along with liblinuxsampler's
163          API header files anymore
164        - only the API relevant header (and source) files will be exported to
165          the Doxygen API documentation (explicitly listed in Doxyfile.in)
166        - added completely new XCode project files for Mac OSX which is now
167          capable to execute our autoconf environment, thus no need anymore
168          to maintain the compile time configuration file (osx/version.h) for
169          OSX manually (patch by Toshi Nagata)
170        - fixed buggy boolean --enable-foo / --disable-foo configure script
171          parameters
172        - global.h now only covers global definitions that are needed for the
173          C++ API header files, all implementation internal global definitions
174          are now in global_private.h
175        - atomic.h is not exposed to the C++ API anymore
176        - no need to include config.h anymore for using LS's API header files
177        - fixed warnings in API doc generation
179      * general changes:
180        - replaced the old, confusing MIDI program change mechanism by a
181          flexible MIDI instrument mapper which allows to map arbitrary
182          (MIDI bank, MIDI program) pairs with arbitrary
183          (engine type, instrument file, file index) triplets which will be
184          loaded on the respective channel when such MIDI program change
185          messages arrive, beside that, each entry allows to define a life-time
186          strategy for the instrument, so the user can define whether the
187          instrument should i.e. be permanently loaded (to be able to switch
188          quickly among sounds) or i.e. loaded just on demand when the
189          respective program change arrives (to safe RAM space), as well as a
190          global volume factor for each entry, so the user can adjust the volume
191          dynamic of his mapped instrument collection without having to modify
192          the instrument files, also one can manage arbitrary amount of such
193          MIDI instrument maps and assign each sampler channel individually
194          a certain map, so that i.e. separation of normal instruments and
195          drumkits is possible
196        - new notification events for tracking changes to audio/MIDI devices,
197          MIDI instrument maps, MIDI instruments, FX sends, global volume.
198        - sampler was limited to load max. 200 instruments in the background
199          due to a constant size RingBuffer FIFO which is now replaced by a
200          dynamic (unlimited) size std::list FIFO
201        - added FX sends, these allow to route audio signals to arbitrary audio
202          output channels for being processed by external effect processors
203          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
204          controllers
205        - global (sampler wide) volume can now be controlled at runtime
206        - Implemented new, improved notification system
207        - fixed compilation errors regarding OSX
208          (patch by Toshi Nagata)
209        - implemented instruments database
210        - added support for escape sequences to the instruments database
211        - added highly experimental support for on-the-fly instrument editing
212          within the sampler's process (by using instrument editor plugins),
213          you'll notice the new "Registered instrument editors:" message on
214          startup, added a new LSCP command:
215          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
216          to spawn a matching instrument editor for the instrument on the
217          given sampler channel, the plugin path can be overridden at compile
218          time with ./configure --enable-plugin-dir=/some/dir
219        - added experimental code for synchronizing instrument editors hosted
220          in the sampler's process to safely edit instruments while playing
221          without a crash (hopefully) by either suspending single regions
222          wherever possible or if unavoidable whole engine(s)
223        - fixed several issues in fundamental "Thread" class: set scheduling
224          policy and priority on thread level, set a minimum stack size for
225          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
226          threads simply inherited properties of starting thread instead of
227          setting their own policy and priority
228        - minor fix in our automatic stack trace mechanism on crashes, the
229          main process did not wait for the stack trace process to finish
230          its output
231        - fixed some minor memory leaks
232        - reenabled assembly features support, at the moment only for
233          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
234        - minor assembly fix in x86 features detection (don't use the PIC
235          register, to avoid relocations in the text segment at runtime)
236        - POSIX callback functions of Thread.h are hidden
238      * MIDI driver:
239        - dispatch bank select (MSB and LSB) messages
241      * audio driver:
242        - the ALSA audio output driver parameters now reflect the correct
243          parameter value ranges for the respective selected sound card
244          (patch by Till Wimmer, a bit fixed and extended)
246      * Gigasampler format engine:
247        - if a filter is used and EG2 finishes before EG1, let the voice
248          die when EG2 has finished (this fixes a problem with clicks and
249          voice starvation for some gigs)
250        - playback is no longer disabled during instrument loading
251        - all notes playing on a channel that changes its instrument keep
252          playing with the old instrument until they get a note off
253          command
254        - EG fix: a release value of zero could cause noises or crash
255        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
256        - EG fine tuning: when attack is zero the EG starts at a level
257          above max sustain level, which means that there is a decay phase
258          even if sustain is 100%
259        - more EG fixes: the level could sometimes go below zero and cause
260          noises or crashes
261        - minor fix of EGDecay (patch by Toshi Nagata)
262        - fixed compiler error when --enable-override-filter-type was
263          supplied to the configure script (fixes #46)
264        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
265          instead of a fix value
266        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
267          127 (solo mode) only kill voices if the respective mode really
268          changed
270      * LSCP server:
271        - fixed compile time error for old Bison versions
272          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
273        - parser now supports extended ASCII character set
274          (up to ASCII code 255, i.e. includes now umlauts and accents)
275        - filename arguments in LSCP commands now allow to use escape
276          sequences, that is directly literal as one of: \', \", \\, \n, \r,
277          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
278          code value like \xf2) (fixes bug #24)
279        - the following LSCP commands now also support escape sequences for at
280          least one of their text-based parameters (i.e. name, description):
287        - returns verbose syntax errors (line and column where syntax error
288          occured, the unexpected character and the actually expected, possible
289          character(s), the latter only if less than 5 possibilities)
290        - made sure that LSCP syntax is not affected by gigedit locale
291          settings
292        - bugfix regarding strings parameter lists: all comma separated lists
293          of strings were treated as being one string containing commas
294          (fixes #57)
296      * Bug fixes:
297        - fixed crash occurring on certain LSCP scripts (Bug 39)
298        - another thread safety fix for lscp "load engine" and "set
299          channel audio output device"
300        - fixed a crash which occurs when reassigning the same engine
301          on a sampler channel with connected MIDI device
302        - fixed a crash which occurs when changing the number of ports of a MIDI
303          device connected to a sampler channel to number less then or equal
304          to the index of the port to which the sampler channel is connected.
305        - The previous bindings were not been disconnected when altering
306          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
307          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
308        - The active stream/voice count statistic was incorrect.
309        - notification events were not been sent for some sampler
310          channel changes
311        - added default min and max values to restrict the number of allowed
312          audio output channels and MIDI input ports
313        - the connection to the PCM interface is now closed when destroying
314          an audio output device
315        - files with slash in their path or filename could not be loaded
317      * test cases:
318        - updated and fixed (haven't been touched in a while)
320    Version 0.4.0 (24 November 2006)
322      * packaging changes:
323        - changed deprecated copyright attribute to license; added ldconfig
324          to post-(un)install steps; added devel package for liblinuxsampler;
325          to linuxsampler.spec (RPM)
326      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
327        applications to link against liblinuxsampler        applications to link against liblinuxsampler
328      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 12  Version CVS HEAD (?) Line 334  Version CVS HEAD (?)
334        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
335      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
336        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
337        - added compile time option to disable processing of All-Notes-Off MIDI
338          messages
339        - added compile time options to allow disabling the various audio and
340          MIDI drivers
341        - fixed automatic GCC CPU switch detection on PPC
342          (patch by Ebrahim Mayat)
344    * Gigasampler format engine:    * Gigasampler format engine:
345      - extensive synthesis optimization      - extensive synthesis optimization
# Line 27  Version CVS HEAD (?) Line 355  Version CVS HEAD (?)
355        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
356        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
357        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
358      - filter fine tuning: calculation of cutoff frequency and      - added support for gig parameter Resonance.
       bandwidth improved. Removed use of "BasicBPFilter". Changed  
       bandpass filter from constant peak to constant skirt. Added  
       support for gig parameter Resonance.  
359      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
360      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
361        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 44  Version CVS HEAD (?) Line 369  Version CVS HEAD (?)
369        all modes can be altered via standard GM messages, that is CC5 for        all modes can be altered via standard GM messages, that is CC5 for
370        altering portamento time, CC65 for enabling / disabling portamento        altering portamento time, CC65 for enabling / disabling portamento
371        mode, CC126 for enabling solo mode and CC127 for disabling solo mode        mode, CC126 for enabling solo mode and CC127 for disabling solo mode
372      - fine tuning of the curves for volume (CC7) and pan (CC10 and gig      - fine tuning of the curves for volume (CC7), pan (CC10 and gig
373        parameter)        parameter) and crossfade
374      - added support for the "attenuation controller threshold" gig      - added support for the "attenuation controller threshold" gig
375        parameter        parameter
376        - added smoothing of volume changes caused by control change
377          messages
378        - sample loop parameters are now taken from the DimensionRegion
379          instead of the wave chunk
380        - fixed keyswitching for v3 gigs with a number of keyswitch splits
381          not equal to a power of two
382        - reimplementation of the filter algorithm. The new filter is more
383          accurate and supports all gig filter types, including bandreject
384          and lowpass turbo.
385        - real support for 24 bit samples - samples are not truncated to
386          16 bits anymore
387        - support for aftertouch (channel pressure, not polyphonic
388          aftertouch)
389        - LFO1 behaviour fixed (dampening from max volume instead of
390          amplifying from 0)
392    * LSCP server:    * LSCP server:
393      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 56  Version CVS HEAD (?) Line 396  Version CVS HEAD (?)
396      - fixed parser bug which occured on space(s) within device parameters      - fixed parser bug which occured on space(s) within device parameters
399      * audio driver:
400        - added aRts audio output driver (by no means RT safe)
402    * MIDI driver:    * MIDI driver:
403      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
404        messages several times instead of once        messages several times instead of once
405        - API extension for MIDI drivers which already supply exact time stamps
406          for events (i.e. for offline rendering based MIDI drivers)
407        - added checks for bad MIDI data
409      * linuxsampler application:
410        - show available sampler engine types on startup
412    * general changes:    * general changes:
413      - 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 72  Version CVS HEAD (?) Line 421  Version CVS HEAD (?)
421      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
424        - fixed some memory management errors
425        - fixed some concurrency problems that could lead to crashes when
426          LSCP commands were executed
427        - fixed crash when instrument loading failed previously on the same
428          sampler channel (fixes bug #36)
430  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)

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