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revision 685 by persson, Tue Jul 5 19:30:37 2005 UTC revision 2101 by persson, Sun May 30 11:40:31 2010 UTC
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1    Version CVS HEAD (?)
2    
3      * packaging changes:
4        - fixed building with newer MinGW-w64
5    
6      * general changes:
7        - Refactoring: moved the independent code from
8          the Gigasampler format engine to base classes
9        - command line option '--profile' is currently disabled, since the
10          respective profiling code is currently broken
11        - Introduced support for optional environment variable
12          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
13          where the sampler shall look for instrument editor plugins
14          (patch by Luis Garrido, slightly modified).
15    
16      * Gigasampler format engine:
17        - implemented the "round robin keyboard" dimension
18        - fixed round robin and random dimensions for cases when number of
19          dimension zones is not a power of two
20        - made round robin use a counter for each region instead of each
21          key
22    
23      * SFZ format engine:
24        - Initial implementation (not usable yet)
25        - added support for v2 multiple stage envelope generators
26        - added a fine-tuned v1 envelope generator instead of using the
27          one from the gig engine
28        - fixed memory leak and memory handling errors
29        - added support for trigger=first, trigger=legato and sw_previous
30        - allow non-numerical key values ("C#4" for example)
31        - "key" opcode now sets pitch_keycenter too
32        - fixed error when unloading instrument with same sample used by
33          multiple regions
34        - added some opcode aliases, like loopmode for loop_mode, to be
35          more compatible
36        - added support for trigger=release and rt_decay
37        - added support for off_mode=normal
38        - added support for random, seq_position, seq_length and volume
39        - added v1 LFO opcodes to parser (no support in engine yet)
40        - added support for amp_veltrack and amp_velcurve_N
41        - fine-tuned the default velocity curve
42        - added support for transpose
43        - fixed crash when using sw_down/up
44        - improved logic for sw_lokey/hikey/up/down/last
45        - added more v1 aliases to parser
46        - reduced memory usage for sfz data
47        - RT-safeness: avoid malloc in audio thread
48        - fixed a bug that could cause voice stealing to fail
49    
50      * SoundFont format engine:
51        - Initial implementation (not usable yet)
52        - RT-safeness: avoid malloc in audio thread
53        - fixed a bug that could cause voice stealing to fail
54    
55      * Host plugins:
56        - AU bugfix: failed to destroy its audio/MIDI devices
57        - Listen to all interfaces on Mac OS X (INADDR_ANY)
58        - VST bugfix: If the host called resume() before and after
59          changing sample rate or block size, the number of channels was
60          incorrectly set to two. This caused silence in Cubase 5.
61    
62      * MIDI driver:
63        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
64          the ALSA sequencer client name
65    
66      * LSCP server:
67        - added support for sending MIDI CC messages via LSCP command
68          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
69    
70      * Bug fixes:
71        - Fixed crash which may occur when MIDI key + transpose is out of range
72    
73    Version 1.0.0 (31 July 2009)
74    
75      * packaging changes:
76        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
77          causing e.g. the libgig test to fail when
78          "./configure --disable-jack-driver" was used
79          (patch by Alexis Ballier)
80        - fixed compilation with gcc 4.3
81        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
82        - fixed configure so it detects x86_64 (#107)
83        - fixes for building with newer MinGW versions
84        - fix for building with bison 2.4 (#111)
85        - fixed building with libgig installed in a non-standard directory
86        - minor fix in configure for mmsystem.h detection on MinGW
87        - Windows: look for editor plugins and Fantasia using base
88          directory of liblinuxsampler dll (look in the same directory and one
89          directory above)
90        - configure script fix: removed unconditional use of SSE
91        - fixed building with sqlite installed in a non-standard directory
92        - when cross-compiling, don't try to create instruments.db
93        - fix for new mingw-w64 version, which has usleep
94    
95      * general changes:
96        - bugfix: on some POSIX systems instrument editor plugins refused to
97          load as we used a non-portable Linux specific struct field
98          (fixes bug #70, patch by Ronald Baljeu)
99        - fixed endless loop which occured when loading an instrument editor
100          plugin DLL on Windows systems failed
101        - fixed memory leaks that occurred when liblinuxsampler was unloaded
102        - optimized the SynchronizedConfig class so it doesn't wait
103          unnecessarily long after an update
104        - added support for notifying instrument editors on note-on / note-off
105          events (e.g. to highlight the pressed keys on the virtual keyboard
106          of gigedit)
107        - added support for triggering notes by instrument editors (see above)
108        - be verbose on DLL load errors (on Linux)
109        - fixed di-harmonic triangle LFO implementation (this LFO implementation
110          is only used by very few systems, most pick the int math
111          implementation, which is usually faster)
112        - fixes for audio drivers with varying buffer sizes
113        - experimental support for running LinuxSampler as a DSSI, LV2 and
114          VST plugin
115        - notification events for stream/voice count statistics are now sent
116          only when there are actual changes
117        - added memory ordering constraints to improve stability on
118          multi-core and multi-cpu systems
119        - maximum voices and disk streams can now be altered at runtime
120        - fixed CPU feature detection on x86_64 (maybe fixes #108)
121        - automatic stacktrace mechanism is now turned off by default and can
122          be switched on by command line option "--stacktrace" (the automatic
123          stacktrace mechanism seems to be broken on most systems at the moment)
124        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
125          a pointer to the launched InstrumentEditor object
126        - added optional 3rd party user data parameter for following
127          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
128          InstrumentEditor::Launch(),
129          InstrumentManager::LaunchInstrumentEditor()
130        - theoretical fix: made SynchronizedConfig follow C++0x memory
131          model more strictly
132        - fixes for using large audio device buffers
133        - Windows: add the installation directory to the DLL search path
134          when loading an editor plugin (solves problems with VST and
135          gigedit on systems with other GTK versions installed)
136    
137      * audio driver:
138        - removed the nonsense audio channel constraint (which was hard coded to
139          max. 100 audio channels) for most audio drivers
140        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
141          opposed to the LSCP specs
142        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
143          reflected the wrong value
144        - fixed a memory management bug in ASIO driver
145        - Makefile fix: JACK_CFLAGS wasn't used
146        - JACK: use jack_client_open instead of the deprecated
147          jack_client_new
148        - added (experimental) CoreAudio driver
149        - applied old fixes to the ASIO driver that were included in the
150          previous binary release but accidentally never committed to CVS
151          (fixes #117)
152        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
153          win64)
154        - VST: added support for sample rate and buffer size changes
155        - VST: close editor (Fantasia) when the VST is removed
156        - VST: avoid opening Fantasia more than once for each VST instance
157        - VST: export main function as "main" on Linux too (fix for
158          energyXT)
159        - VST: changed number of output channels from one stereo to 16
160          stereo
161        - added channel routing, fxsends and midi maps to the settings
162          stored in the plugin state
163        - performance optimization of AudioChannel::MixTo() and
164          AudioChannel::CopyTo() methods using GCC vector exensions
165          (if available)
166        - ASIO fixes: avoid initializing the device twice, avoid throwing
167          exception when getting parameters from a disconnected device
168    
169      * MIDI driver:
170        - added JACK MIDI driver
171        - dispatch bank select as ordinary CC as well, the user might seriously
172          want to (mis)use it for some purpose ("fixed" in all current MIDI
173          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
174        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
175          CoreMidi or AU
176        - fixed mingw-w64 compilation error in MME driver
177        - made program change handling in MIDI thread real-time safe by
178          moving the logic to a non-RT thread
179        - fixed minor memory leak in ALSA driver
180    
181      * instruments database:
182        - avoid time consuming samples scanning when adding instruments
183          to the instruments database
184        - added support for handling lost files in the instruments database
185        - Implemented option for adding instruments in separate directories
186          in the instruments database
187          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
188        - work-around for missing fnmatch function on Windows to make
189          instrument database compilable
190        - added instrument database support on Windows
191          works with both standalone mode and VST plugin.
192          the instruments DB file is located in
193          %USERPROFILE%\.linuxsampler\instruments.db which allows different
194          databases for each windows user
195          if no DB is present it automatically creates the .linuxsampler subdir
196          and then creates an empty DB
197        - fixed recursive import, which was broken on Windows
198    
199      * Gigasampler format engine:
200        - fixed a memory leak that could happen when a channel was deleted
201          while notes were playing
202        - made it possible to load an instrument even if the audio thread
203          isn't running
204        - added partial support for the "Controller Triggered" MIDI rule,
205          enough for piano gigs with pedal noise samples
206        - minor fix: only mark FX sends as being modified if really the
207          respective FX send MIDI controller was used
208        - added support for GM global device volume SysEx message
209          (can be selected at compile time to either apply globally to the
210          whole sampler [default] or only to the sampler channels that are
211          connected to the respective MIDI input port the SysEx message arrived
212          on)
213        - bugfix: notes triggered at position 0 in the audio buffer were
214          sometimes wrongly killed in the same buffer, causing no sound to
215          be played
216        - added support for chromatic / drumkit mode Roland GS Sysex message
217          which is usally used to switch a part between chromatic sounds and
218          drumkit sounds (as opposed to their common default setting of MIDI
219          part 10 being a drumkit part and all other ones chromatic parts), in
220          LS however one can switch between the first 16 MIDI instrument maps
221          defined for the sampler
222        - made it possible to create multiple sample channels even if the
223          audio thread isn't running
224        - fixed crash when removing channel with active voices (#116)
225        - bugfix: on sample reference changes (instrument editor), only
226          un-cache the respective sample if it's really not used by any
227          sampler engine anymore
228        - re-cache samples in case they were changed by an instrument editor,
229          e.g. when a sample was added while playing (#82)
230        - fixed hanging notes which occured when note-off event had the exact
231          same time stamp as the voice's note-on event and occured both in the
232          same audio fragment cycle (fixes bug #112)
233        - added support for the "fine tune" and "pitch bend range"
234          instrument-level gig parameters
235        - fixed minor artifacts in pitch bend handling
236        - added support for GS Reset SysEx message
237        - allow gig files to use unlimited downward pitch shifting
238        - added a limit check for upward pitch shifting
239        - bugfix: sometimes, when playing a note twice fast, the second
240          note was silent
241        - fixed crash happening when a pitch bend event arrived at the
242          same time a new instrument was loading
243    
244      * LSCP server:
245        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
246          react on MIDI data arriving on certain sampler channels (so far only
247          Note-On and Note-Off events are sent via this LSCP event)
248        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
249          react on MIDI data arriving on certain MIDI input devices (so far only
250          Note-On and Note-Off events are sent via this LSCP event)
251        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
252          SET DB_INSTRUMENT FILE_PATH
253        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
254          frontends to send MIDI messages to specific sampler channel
255        - added two additional fields to GET FILE INSTRUMENT INFO command -
256          KEY_BINDINGS and KEYSWITCH_BINDINGS
257        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
258          was incorrect
259        - Optimized the retrieval of the MIDI instrument mappings
260        - added new LSCP command "SET VOICES" to globally alter the maximum
261          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
262          be triggered respectively
263        - added new LSCP command "SET STREAMS" to globally alter the maximum
264          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
265          which will be triggered respectively
266        - bugfix: retry if "select" returns EINTR (this fixes a crash when
267          a gigedit file dialog is opened)
268        - close all connections when LSCPServer is deleted
269        - hard close of all sockets on exit
270        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
271          driver
272    
273      * Bug fixes:
274        - fixed a crash which occurs when removing a sampler channel waiting
275          to start instrument loading after another channel
276        - fixed a crash which occurs when removing a sampler channel with
277          instrument loading in progress (bug #113)
278        - fixed termination caused by uncaught exception when adding MIDI
279          instrument with PERSISTENT load mode
280        - fixed possible iterator invalidations when resetting the sampler
281        - fixed memory leaks when issuing the following LSCP commands:
282          GET AUDIO_OUTPUT_DRIVER INFO
283          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
284          GET MIDI_INPUT_DRIVER INFO
285          GET MIDI_INPUT_DRIVER_PARAMETER INFO
286        - fixed possible compilation error when sqlite is not present
287        - fixed orphaned pointers when setting maximum voices limit (bug #118)
288        - fixed crash when changing the audio output device of a sampler
289          channel with loaded instrument and start playing notes
290        - fixed endless loop in Engine::SuspendAll() (bug #120)
291        - fixed a low-level atomic load function that was broken on 64-bit
292          PowerPC, which probably could cause crashes on that platform
293        - fixed a memory management error which could cause a crash when a
294          plugin was unloaded
295        - bugfix: two private structs had the same name, which could cause
296          problems if the linker chose the wrong constructor
297        - fixed low-level ConditionServer usage bug that caused lockups on
298          Windows
299    
300    
301    Version 0.5.1 (6 December 2007)
302    
303      * packaging changes:
304        - added autoconf checks for pthread library
305        - added autoconf check for pthread bug found on certain NPTL-enabled
306          glibc versions (see Gentoo bug report #194076)
307        - added autoconf checks for MS Windows
308    
309      * general changes:
310        - bugfix: the thread used by an editor plugin didn't die when the
311          editor closed
312        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
313          out all the space. operator--() did not apply size_mask after
314          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
315          order to avoid problems with the _NonVolatileReader functions.
316        - bugfix: Stream.h: added a missing divide by BytesPerSample in
317          GetWriteSpace(). Since this function is currently only used in
318          the stream's qsort() compare function, it didn't trigger any
319          bugs.
320        - Resampler.h, Synthesizer.h: cubic interpolation now works in
321          24bit mode too. Faster method to read 24bit words on little
322          endian machines (x86): replaced 3 byte reads + shifts with a 1
323          unaligned 32bit read and shift
324        - experimental support for MS Windows (MIDI input via MME, AUDIO
325          output via ASIO)
326        - made handling of SIGINT signal (Ctrl-C) a bit more robust
327        - support for monitoring the total number of active disk streams
328          (new LSCP commands: GET TOTAL_STREAM_COUNT,
329          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
330    
331      * AUDIO driver:
332        - added Windows ASIO low latency audio driver
333    
334      * MIDI driver:
335        - added MME Windows MIDI driver
336    
337      * LSCP server:
338        - added support for Windows style path / filenames, however with
339          forward slash path separators instead of backslash
340          (i.e. "C:/foo/bar.gig")
341        - allow naughty liblscp to send non-string device parameters within
342          apostrophes as well
343        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
344          "LIST FILE INSTRUMENTS <file>" and
345          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
346          about an arbitrary instrument file on the system where the sampler is
347          running on
348    
349    Version 0.5.0 (15 October 2007)
350    
351      * packaging changes:
352        - config.h is not going to be installed along with liblinuxsampler's
353          API header files anymore
354        - only the API relevant header (and source) files will be exported to
355          the Doxygen API documentation (explicitly listed in Doxyfile.in)
356        - added completely new XCode project files for Mac OSX which is now
357          capable to execute our autoconf environment, thus no need anymore
358          to maintain the compile time configuration file (osx/version.h) for
359          OSX manually (patch by Toshi Nagata)
360        - fixed buggy boolean --enable-foo / --disable-foo configure script
361          parameters
362        - global.h now only covers global definitions that are needed for the
363          C++ API header files, all implementation internal global definitions
364          are now in global_private.h
365        - atomic.h is not exposed to the C++ API anymore
366        - no need to include config.h anymore for using LS's API header files
367        - fixed warnings in API doc generation
368    
369      * general changes:
370        - replaced the old, confusing MIDI program change mechanism by a
371          flexible MIDI instrument mapper which allows to map arbitrary
372          (MIDI bank, MIDI program) pairs with arbitrary
373          (engine type, instrument file, file index) triplets which will be
374          loaded on the respective channel when such MIDI program change
375          messages arrive, beside that, each entry allows to define a life-time
376          strategy for the instrument, so the user can define whether the
377          instrument should i.e. be permanently loaded (to be able to switch
378          quickly among sounds) or i.e. loaded just on demand when the
379          respective program change arrives (to safe RAM space), as well as a
380          global volume factor for each entry, so the user can adjust the volume
381          dynamic of his mapped instrument collection without having to modify
382          the instrument files, also one can manage arbitrary amount of such
383          MIDI instrument maps and assign each sampler channel individually
384          a certain map, so that i.e. separation of normal instruments and
385          drumkits is possible
386        - new notification events for tracking changes to audio/MIDI devices,
387          MIDI instrument maps, MIDI instruments, FX sends, global volume.
388        - sampler was limited to load max. 200 instruments in the background
389          due to a constant size RingBuffer FIFO which is now replaced by a
390          dynamic (unlimited) size std::list FIFO
391        - added FX sends, these allow to route audio signals to arbitrary audio
392          output channels for being processed by external effect processors
393          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
394          controllers
395        - global (sampler wide) volume can now be controlled at runtime
396        - Implemented new, improved notification system
397        - fixed compilation errors regarding OSX
398          (patch by Toshi Nagata)
399        - implemented instruments database
400        - added support for escape sequences to the instruments database
401        - added highly experimental support for on-the-fly instrument editing
402          within the sampler's process (by using instrument editor plugins),
403          you'll notice the new "Registered instrument editors:" message on
404          startup, added a new LSCP command:
405          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
406          to spawn a matching instrument editor for the instrument on the
407          given sampler channel, the plugin path can be overridden at compile
408          time with ./configure --enable-plugin-dir=/some/dir
409        - added experimental code for synchronizing instrument editors hosted
410          in the sampler's process to safely edit instruments while playing
411          without a crash (hopefully) by either suspending single regions
412          wherever possible or if unavoidable whole engine(s)
413        - fixed several issues in fundamental "Thread" class: set scheduling
414          policy and priority on thread level, set a minimum stack size for
415          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
416          threads simply inherited properties of starting thread instead of
417          setting their own policy and priority
418        - minor fix in our automatic stack trace mechanism on crashes, the
419          main process did not wait for the stack trace process to finish
420          its output
421        - fixed some minor memory leaks
422        - reenabled assembly features support, at the moment only for
423          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
424        - minor assembly fix in x86 features detection (don't use the PIC
425          register, to avoid relocations in the text segment at runtime)
426        - POSIX callback functions of Thread.h are hidden
427    
428      * MIDI driver:
429        - dispatch bank select (MSB and LSB) messages
430    
431      * audio driver:
432        - the ALSA audio output driver parameters now reflect the correct
433          parameter value ranges for the respective selected sound card
434          (patch by Till Wimmer, a bit fixed and extended)
435    
436      * Gigasampler format engine:
437        - if a filter is used and EG2 finishes before EG1, let the voice
438          die when EG2 has finished (this fixes a problem with clicks and
439          voice starvation for some gigs)
440        - playback is no longer disabled during instrument loading
441        - all notes playing on a channel that changes its instrument keep
442          playing with the old instrument until they get a note off
443          command
444        - EG fix: a release value of zero could cause noises or crash
445        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
446        - EG fine tuning: when attack is zero the EG starts at a level
447          above max sustain level, which means that there is a decay phase
448          even if sustain is 100%
449        - more EG fixes: the level could sometimes go below zero and cause
450          noises or crashes
451        - minor fix of EGDecay (patch by Toshi Nagata)
452        - fixed compiler error when --enable-override-filter-type was
453          supplied to the configure script (fixes #46)
454        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
455          instead of a fix value
456        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
457          127 (solo mode) only kill voices if the respective mode really
458          changed
459    
460      * LSCP server:
461        - fixed compile time error for old Bison versions
462          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
463        - parser now supports extended ASCII character set
464          (up to ASCII code 255, i.e. includes now umlauts and accents)
465        - filename arguments in LSCP commands now allow to use escape
466          sequences, that is directly literal as one of: \', \", \\, \n, \r,
467          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
468          code value like \xf2) (fixes bug #24)
469        - the following LSCP commands now also support escape sequences for at
470          least one of their text-based parameters (i.e. name, description):
471          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
472          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
473          "SET DB_INSTRUMENT_DIRECTORY NAME",
474          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
475          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
476          "FIND DB_INSTRUMENT_DIRECTORIES"
477        - returns verbose syntax errors (line and column where syntax error
478          occured, the unexpected character and the actually expected, possible
479          character(s), the latter only if less than 5 possibilities)
480        - made sure that LSCP syntax is not affected by gigedit locale
481          settings
482        - bugfix regarding strings parameter lists: all comma separated lists
483          of strings were treated as being one string containing commas
484          (fixes #57)
485    
486      * Bug fixes:
487        - fixed crash occurring on certain LSCP scripts (Bug 39)
488        - another thread safety fix for lscp "load engine" and "set
489          channel audio output device"
490        - fixed a crash which occurs when reassigning the same engine
491          on a sampler channel with connected MIDI device
492        - fixed a crash which occurs when changing the number of ports of a MIDI
493          device connected to a sampler channel to number less then or equal
494          to the index of the port to which the sampler channel is connected.
495        - The previous bindings were not been disconnected when altering
496          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
497          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
498        - The active stream/voice count statistic was incorrect.
499        - notification events were not been sent for some sampler
500          channel changes
501        - added default min and max values to restrict the number of allowed
502          audio output channels and MIDI input ports
503        - the connection to the PCM interface is now closed when destroying
504          an audio output device
505        - files with slash in their path or filename could not be loaded
506    
507      * test cases:
508        - updated and fixed (haven't been touched in a while)
509    
510    Version 0.4.0 (24 November 2006)
511    
512      * packaging changes:
513        - changed deprecated copyright attribute to license; added ldconfig
514          to post-(un)install steps; added devel package for liblinuxsampler;
515          to linuxsampler.spec (RPM)
516        - install necessary development header files for allowing 3rd party
517          applications to link against liblinuxsampler
518        - liblinuxsampler's API documentation can be generated with 'make docs'
519          (Doxygen required)
520        - added benchmark to automatically detect the best triangle LFO
521          implementation (currently either an integer math solution or a
522          di-harmonic approximation), automatic detection can be overriden
523          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
524          configure script argument though (mandatory for cross-compilation)
525        - do not automatically pick optimized gcc flags if the user already
526          provided some on his own (as CXXFLAGS)
527        - added compile time option to disable processing of All-Notes-Off MIDI
528          messages
529        - added compile time options to allow disabling the various audio and
530          MIDI drivers
531        - fixed automatic GCC CPU switch detection on PPC
532          (patch by Ebrahim Mayat)
533    
534      * Gigasampler format engine:
535        - extensive synthesis optimization
536          (reimplementation of EGs and LFO(s), removed synthesis parameter
537          prerendering and the synthesis parameter matrix in general, splitting
538          each audio fragment into subfragments now where each subfragment uses
539          constant pitch and filter coefficients. The volume coefficient is
540          linearly interpolated inside a subfragment, unless
541          --disable-interpolate-volume is set.)
542        - fine tuning of the EG modulation parameters
543        - improved filter cutoff calculation by adding support for the
544          following gig parameters: Cutoff freq (used when no cutoff
545          controller is defined), Control invert, Minimum cutoff, Velocity
546          curve and Velocity range. The keyboard tracking now scales
547          cutoff frequency instead of resonance.
548        - added support for gig parameter Resonance.
549        - fixed bug in sysex handling (patch by Juan Linietsky)
550        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
551          which can be overridden with --enable-global-attenuation
552        - EG fixes: made the length of "attack hold" stage more
553          accurate. Release stage can now start before attack stage
554          ends. Cancel release didn't work when sustain was zero. Attack
555          time now has a minimal value to prevent clicks.
556        - fixed pitch changes larger than one octave
557        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
558        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
559          all modes can be altered via standard GM messages, that is CC5 for
560          altering portamento time, CC65 for enabling / disabling portamento
561          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
562        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
563          parameter) and crossfade
564        - added support for the "attenuation controller threshold" gig
565          parameter
566        - added smoothing of volume changes caused by control change
567          messages
568        - sample loop parameters are now taken from the DimensionRegion
569          instead of the wave chunk
570        - fixed keyswitching for v3 gigs with a number of keyswitch splits
571          not equal to a power of two
572        - reimplementation of the filter algorithm. The new filter is more
573          accurate and supports all gig filter types, including bandreject
574          and lowpass turbo.
575        - real support for 24 bit samples - samples are not truncated to
576          16 bits anymore
577        - support for aftertouch (channel pressure, not polyphonic
578          aftertouch)
579        - LFO1 behaviour fixed (dampening from max volume instead of
580          amplifying from 0)
581    
582      * LSCP server:
583        - fixed application exit on broken pipe error (fixes bug #20)
584        - fixed the notification messages delay due to lack of
585          network activity (fixes bug #26)
586        - fixed parser bug which occured on space(s) within device parameters
587          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
588    
589      * audio driver:
590        - added aRts audio output driver (by no means RT safe)
591    
592      * MIDI driver:
593        - fixed legacy sysex code which caused dispatching of MIDI SysEx
594          messages several times instead of once
595        - API extension for MIDI drivers which already supply exact time stamps
596          for events (i.e. for offline rendering based MIDI drivers)
597        - added checks for bad MIDI data
598    
599      * linuxsampler application:
600        - show available sampler engine types on startup
601    
602      * general changes:
603        - support for muting sampler channels and solo mode of the same, two new
604          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
605          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
606          introduced for this, the behavior is the same like on a mixer console
607          (patch by Grigor Iliev, a bit adjusted). Also added configure option
608          --enable-process-muted-channels which can be used to enable the
609          processing of muted channels.
610        - support for sostenuto pedal
611        - support for monitoring the total number of active voices
612          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
613          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
614        - fixed some memory management errors
615        - fixed some concurrency problems that could lead to crashes when
616          LSCP commands were executed
617        - fixed crash when instrument loading failed previously on the same
618          sampler channel (fixes bug #36)
619    
620    Version 0.3.3 (15 July 2005)
621    
622      * packaging changes:
623        - fixed compilation with gcc 4.0
624    
625      * Gigasampler format engine:
626        - LFO preprocessing was performed even though the respective LFO was
627          disabled by the instrument patch (minor efficiency fix)
628        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
629          for volume ramp downs in the same fragment (needed for current voice
630          stealing implementation) then simply inform the user with a warning
631          about possible click sounds and reduce the volume ramp down
632          appropriately instead of cancelling the audio device connection
633    
634  Version 0.3.2 (24 June 2005)  Version 0.3.2 (24 June 2005)
635    
636    * packaging changes:    * packaging changes:
# Line 8  Version 0.3.2 (24 June 2005) Line 641  Version 0.3.2 (24 June 2005)
641      - fixed 'make dist' rule to include all necessary files      - fixed 'make dist' rule to include all necessary files
642      - require automake (>= 1.5) for 'make -f Makefile.cvs'      - require automake (>= 1.5) for 'make -f Makefile.cvs'
643        (due to 'dist-bzip2' automake option)        (due to 'dist-bzip2' automake option)
     - fixed compilation with gcc 4.0  
644    
645    * Gigasampler format engine:    * Gigasampler format engine:
646      - support for the gig parameters for "release velocity response" curves      - support for the gig parameters for "release velocity response" curves

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