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revision 668 by schoenebeck, Mon Jun 20 15:30:47 2005 UTC revision 1659 by schoenebeck, Sun Feb 3 00:13:27 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    
9      * general changes:
10        - bugfix: on some POSIX systems instrument editor plugins refused to
11          load as we used a non-portable Linux specific struct field
12          (fixes bug #70, patch by Ronald Baljeu)
13        - fixed endless loop which occured when loading an instrument editor
14          plugin DLL on Windows systems failed
15        - fixed memory leaks that occurred when liblinuxsampler was unloaded
16        - optimized the SynchronizedConfig class so it doesn't wait
17          unnecessarily long after an update
18        - added support for notifying instrument editors on note-on / note-off
19          events (e.g. to highlight the pressed keys on the virtual keyboard
20          of gigedit)
21        - added support for triggering notes by instrument editors (see above)
22        - be verbose on DLL load errors (on Linux)
23    
24      * audio driver:
25        - removed the nonsense audio channel constraint (which was hard coded to
26          max. 100 audio channels) for most audio drivers
27        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
28          opposed to the LSCP specs
29        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
30          reflected the wrong value
31        - fixed a memory management bug in ASIO driver
32    
33      * MIDI driver:
34        - added JACK MIDI driver
35    
36      * instruments database:
37        - avoid time consuming samples scanning when adding instruments
38          to the instruments database
39    
40      * Gigasampler format engine:
41        - fixed a memory leak that could happen when a channel was deleted
42          while notes were playing
43        - made it possible to load an instrument even if the audio thread
44          isn't running
45    
46    Version 0.5.1 (6 December 2007)
47    
48      * packaging changes:
49        - added autoconf checks for pthread library
50        - added autoconf check for pthread bug found on certain NPTL-enabled
51          glibc versions (see Gentoo bug report #194076)
52        - added autoconf checks for MS Windows
53    
54      * general changes:
55        - bugfix: the thread used by an editor plugin didn't die when the
56          editor closed
57        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
58          out all the space. operator--() did not apply size_mask after
59          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
60          order to avoid problems with the _NonVolatileReader functions.
61        - bugfix: Stream.h: added a missing divide by BytesPerSample in
62          GetWriteSpace(). Since this function is currently only used in
63          the stream's qsort() compare function, it didn't trigger any
64          bugs.
65        - Resampler.h, Synthesizer.h: cubic interpolation now works in
66          24bit mode too. Faster method to read 24bit words on little
67          endian machines (x86): replaced 3 byte reads + shifts with a 1
68          unaligned 32bit read and shift
69        - experimental support for MS Windows (MIDI input via MME, AUDIO
70          output via ASIO)
71        - made handling of SIGINT signal (Ctrl-C) a bit more robust
72        - support for monitoring the total number of active disk streams
73          (new LSCP commands: GET TOTAL_STREAM_COUNT,
74          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
75    
76      * AUDIO driver:
77        - added Windows ASIO low latency audio driver
78    
79      * MIDI driver:
80        - added MME Windows MIDI driver
81    
82      * LSCP server:
83        - added support for Windows style path / filenames, however with
84          forward slash path separators instead of backslash
85          (i.e. "C:/foo/bar.gig")
86        - allow naughty liblscp to send non-string device parameters within
87          apostrophes as well
88        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
89          "LIST FILE INSTRUMENTS <file>" and
90          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
91          about an arbitrary instrument file on the system where the sampler is
92          running on
93    
94    Version 0.5.0 (15 October 2007)
95    
96      * packaging changes:
97        - config.h is not going to be installed along with liblinuxsampler's
98          API header files anymore
99        - only the API relevant header (and source) files will be exported to
100          the Doxygen API documentation (explicitly listed in Doxyfile.in)
101        - added completely new XCode project files for Mac OSX which is now
102          capable to execute our autoconf environment, thus no need anymore
103          to maintain the compile time configuration file (osx/version.h) for
104          OSX manually (patch by Toshi Nagata)
105        - fixed buggy boolean --enable-foo / --disable-foo configure script
106          parameters
107        - global.h now only covers global definitions that are needed for the
108          C++ API header files, all implementation internal global definitions
109          are now in global_private.h
110        - atomic.h is not exposed to the C++ API anymore
111        - no need to include config.h anymore for using LS's API header files
112        - fixed warnings in API doc generation
113    
114      * general changes:
115        - replaced the old, confusing MIDI program change mechanism by a
116          flexible MIDI instrument mapper which allows to map arbitrary
117          (MIDI bank, MIDI program) pairs with arbitrary
118          (engine type, instrument file, file index) triplets which will be
119          loaded on the respective channel when such MIDI program change
120          messages arrive, beside that, each entry allows to define a life-time
121          strategy for the instrument, so the user can define whether the
122          instrument should i.e. be permanently loaded (to be able to switch
123          quickly among sounds) or i.e. loaded just on demand when the
124          respective program change arrives (to safe RAM space), as well as a
125          global volume factor for each entry, so the user can adjust the volume
126          dynamic of his mapped instrument collection without having to modify
127          the instrument files, also one can manage arbitrary amount of such
128          MIDI instrument maps and assign each sampler channel individually
129          a certain map, so that i.e. separation of normal instruments and
130          drumkits is possible
131        - new notification events for tracking changes to audio/MIDI devices,
132          MIDI instrument maps, MIDI instruments, FX sends, global volume.
133        - sampler was limited to load max. 200 instruments in the background
134          due to a constant size RingBuffer FIFO which is now replaced by a
135          dynamic (unlimited) size std::list FIFO
136        - added FX sends, these allow to route audio signals to arbitrary audio
137          output channels for being processed by external effect processors
138          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
139          controllers
140        - global (sampler wide) volume can now be controlled at runtime
141        - Implemented new, improved notification system
142        - fixed compilation errors regarding OSX
143          (patch by Toshi Nagata)
144        - implemented instruments database
145        - added support for escape sequences to the instruments database
146        - added highly experimental support for on-the-fly instrument editing
147          within the sampler's process (by using instrument editor plugins),
148          you'll notice the new "Registered instrument editors:" message on
149          startup, added a new LSCP command:
150          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
151          to spawn a matching instrument editor for the instrument on the
152          given sampler channel, the plugin path can be overridden at compile
153          time with ./configure --enable-plugin-dir=/some/dir
154        - added experimental code for synchronizing instrument editors hosted
155          in the sampler's process to safely edit instruments while playing
156          without a crash (hopefully) by either suspending single regions
157          wherever possible or if unavoidable whole engine(s)
158        - fixed several issues in fundamental "Thread" class: set scheduling
159          policy and priority on thread level, set a minimum stack size for
160          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
161          threads simply inherited properties of starting thread instead of
162          setting their own policy and priority
163        - minor fix in our automatic stack trace mechanism on crashes, the
164          main process did not wait for the stack trace process to finish
165          its output
166        - fixed some minor memory leaks
167        - reenabled assembly features support, at the moment only for
168          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
169        - minor assembly fix in x86 features detection (don't use the PIC
170          register, to avoid relocations in the text segment at runtime)
171        - POSIX callback functions of Thread.h are hidden
172    
173      * MIDI driver:
174        - dispatch bank select (MSB and LSB) messages
175    
176      * audio driver:
177        - the ALSA audio output driver parameters now reflect the correct
178          parameter value ranges for the respective selected sound card
179          (patch by Till Wimmer, a bit fixed and extended)
180    
181      * Gigasampler format engine:
182        - if a filter is used and EG2 finishes before EG1, let the voice
183          die when EG2 has finished (this fixes a problem with clicks and
184          voice starvation for some gigs)
185        - playback is no longer disabled during instrument loading
186        - all notes playing on a channel that changes its instrument keep
187          playing with the old instrument until they get a note off
188          command
189        - EG fix: a release value of zero could cause noises or crash
190        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
191        - EG fine tuning: when attack is zero the EG starts at a level
192          above max sustain level, which means that there is a decay phase
193          even if sustain is 100%
194        - more EG fixes: the level could sometimes go below zero and cause
195          noises or crashes
196        - minor fix of EGDecay (patch by Toshi Nagata)
197        - fixed compiler error when --enable-override-filter-type was
198          supplied to the configure script (fixes #46)
199        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
200          instead of a fix value
201        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
202          127 (solo mode) only kill voices if the respective mode really
203          changed
204    
205      * LSCP server:
206        - fixed compile time error for old Bison versions
207          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
208        - parser now supports extended ASCII character set
209          (up to ASCII code 255, i.e. includes now umlauts and accents)
210        - filename arguments in LSCP commands now allow to use escape
211          sequences, that is directly literal as one of: \', \", \\, \n, \r,
212          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
213          code value like \xf2) (fixes bug #24)
214        - the following LSCP commands now also support escape sequences for at
215          least one of their text-based parameters (i.e. name, description):
216          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
217          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
218          "SET DB_INSTRUMENT_DIRECTORY NAME",
219          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
220          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
221          "FIND DB_INSTRUMENT_DIRECTORIES"
222        - returns verbose syntax errors (line and column where syntax error
223          occured, the unexpected character and the actually expected, possible
224          character(s), the latter only if less than 5 possibilities)
225        - made sure that LSCP syntax is not affected by gigedit locale
226          settings
227        - bugfix regarding strings parameter lists: all comma separated lists
228          of strings were treated as being one string containing commas
229          (fixes #57)
230    
231      * Bug fixes:
232        - fixed crash occurring on certain LSCP scripts (Bug 39)
233        - another thread safety fix for lscp "load engine" and "set
234          channel audio output device"
235        - fixed a crash which occurs when reassigning the same engine
236          on a sampler channel with connected MIDI device
237        - fixed a crash which occurs when changing the number of ports of a MIDI
238          device connected to a sampler channel to number less then or equal
239          to the index of the port to which the sampler channel is connected.
240        - The previous bindings were not been disconnected when altering
241          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
242          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
243        - The active stream/voice count statistic was incorrect.
244        - notification events were not been sent for some sampler
245          channel changes
246        - added default min and max values to restrict the number of allowed
247          audio output channels and MIDI input ports
248        - the connection to the PCM interface is now closed when destroying
249          an audio output device
250        - files with slash in their path or filename could not be loaded
251    
252      * test cases:
253        - updated and fixed (haven't been touched in a while)
254    
255    Version 0.4.0 (24 November 2006)
256    
257      * packaging changes:
258        - changed deprecated copyright attribute to license; added ldconfig
259          to post-(un)install steps; added devel package for liblinuxsampler;
260          to linuxsampler.spec (RPM)
261        - install necessary development header files for allowing 3rd party
262          applications to link against liblinuxsampler
263        - liblinuxsampler's API documentation can be generated with 'make docs'
264          (Doxygen required)
265        - added benchmark to automatically detect the best triangle LFO
266          implementation (currently either an integer math solution or a
267          di-harmonic approximation), automatic detection can be overriden
268          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
269          configure script argument though (mandatory for cross-compilation)
270        - do not automatically pick optimized gcc flags if the user already
271          provided some on his own (as CXXFLAGS)
272        - added compile time option to disable processing of All-Notes-Off MIDI
273          messages
274        - added compile time options to allow disabling the various audio and
275          MIDI drivers
276        - fixed automatic GCC CPU switch detection on PPC
277          (patch by Ebrahim Mayat)
278    
279      * Gigasampler format engine:
280        - extensive synthesis optimization
281          (reimplementation of EGs and LFO(s), removed synthesis parameter
282          prerendering and the synthesis parameter matrix in general, splitting
283          each audio fragment into subfragments now where each subfragment uses
284          constant pitch and filter coefficients. The volume coefficient is
285          linearly interpolated inside a subfragment, unless
286          --disable-interpolate-volume is set.)
287        - fine tuning of the EG modulation parameters
288        - improved filter cutoff calculation by adding support for the
289          following gig parameters: Cutoff freq (used when no cutoff
290          controller is defined), Control invert, Minimum cutoff, Velocity
291          curve and Velocity range. The keyboard tracking now scales
292          cutoff frequency instead of resonance.
293        - added support for gig parameter Resonance.
294        - fixed bug in sysex handling (patch by Juan Linietsky)
295        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
296          which can be overridden with --enable-global-attenuation
297        - EG fixes: made the length of "attack hold" stage more
298          accurate. Release stage can now start before attack stage
299          ends. Cancel release didn't work when sustain was zero. Attack
300          time now has a minimal value to prevent clicks.
301        - fixed pitch changes larger than one octave
302        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
303        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
304          all modes can be altered via standard GM messages, that is CC5 for
305          altering portamento time, CC65 for enabling / disabling portamento
306          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
307        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
308          parameter) and crossfade
309        - added support for the "attenuation controller threshold" gig
310          parameter
311        - added smoothing of volume changes caused by control change
312          messages
313        - sample loop parameters are now taken from the DimensionRegion
314          instead of the wave chunk
315        - fixed keyswitching for v3 gigs with a number of keyswitch splits
316          not equal to a power of two
317        - reimplementation of the filter algorithm. The new filter is more
318          accurate and supports all gig filter types, including bandreject
319          and lowpass turbo.
320        - real support for 24 bit samples - samples are not truncated to
321          16 bits anymore
322        - support for aftertouch (channel pressure, not polyphonic
323          aftertouch)
324        - LFO1 behaviour fixed (dampening from max volume instead of
325          amplifying from 0)
326    
327      * LSCP server:
328        - fixed application exit on broken pipe error (fixes bug #20)
329        - fixed the notification messages delay due to lack of
330          network activity (fixes bug #26)
331        - fixed parser bug which occured on space(s) within device parameters
332          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
333    
334      * audio driver:
335        - added aRts audio output driver (by no means RT safe)
336    
337      * MIDI driver:
338        - fixed legacy sysex code which caused dispatching of MIDI SysEx
339          messages several times instead of once
340        - API extension for MIDI drivers which already supply exact time stamps
341          for events (i.e. for offline rendering based MIDI drivers)
342        - added checks for bad MIDI data
343    
344      * linuxsampler application:
345        - show available sampler engine types on startup
346    
347      * general changes:
348        - support for muting sampler channels and solo mode of the same, two new
349          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
350          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
351          introduced for this, the behavior is the same like on a mixer console
352          (patch by Grigor Iliev, a bit adjusted). Also added configure option
353          --enable-process-muted-channels which can be used to enable the
354          processing of muted channels.
355        - support for sostenuto pedal
356        - support for monitoring the total number of active voices
357          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
358          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
359        - fixed some memory management errors
360        - fixed some concurrency problems that could lead to crashes when
361          LSCP commands were executed
362        - fixed crash when instrument loading failed previously on the same
363          sampler channel (fixes bug #36)
364    
365    Version 0.3.3 (15 July 2005)
366    
367      * packaging changes:
368        - fixed compilation with gcc 4.0
369    
370      * Gigasampler format engine:
371        - LFO preprocessing was performed even though the respective LFO was
372          disabled by the instrument patch (minor efficiency fix)
373        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
374          for volume ramp downs in the same fragment (needed for current voice
375          stealing implementation) then simply inform the user with a warning
376          about possible click sounds and reduce the volume ramp down
377          appropriately instead of cancelling the audio device connection
378    
379    Version 0.3.2 (24 June 2005)
380    
381      * packaging changes:
382      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
383        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
384      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
# Line 22  Version CVS HEAD (?) Line 400  Version CVS HEAD (?)
400        instead of when the respective voice is actually launched        instead of when the respective voice is actually launched
401        (fixes undefined behavior if stolen voices belonged to a key group -        (fixes undefined behavior if stolen voices belonged to a key group -
402        this case was followed by a "killed voice survived" error message)        this case was followed by a "killed voice survived" error message)
403        - fixed minor issue with null/silence samples
404          (those stole voices even though they don't need a voice at all which
405          resulted in "voice stealing didn't work out" messages)
406        - don't reset volume, pan, pitch and MIDI controller values on
407          instrument or audio output device change
408    
409    * LSCP server:    * LSCP server:
410      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
411      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
412        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
413    
414    * linuxsampler application:    * linuxsampler application:
415      - added command line parameters --lscp-addr and --lscp-port to override      - added command line parameters --lscp-addr and --lscp-port to override

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