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revision 838 by schoenebeck, Fri Feb 10 14:57:40 2006 UTC revision 1715 by schoenebeck, Tue Mar 11 15:20:46 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    
28      * audio driver:
29        - removed the nonsense audio channel constraint (which was hard coded to
30          max. 100 audio channels) for most audio drivers
31        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
32          opposed to the LSCP specs
33        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
34          reflected the wrong value
35        - fixed a memory management bug in ASIO driver
36    
37      * MIDI driver:
38        - added JACK MIDI driver
39        - dispatch bank select as ordinary CC as well, the user might seriously
40          want to (mis)use it for some purpose ("fixed" in all current MIDI
41          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
42    
43      * instruments database:
44        - avoid time consuming samples scanning when adding instruments
45          to the instruments database
46    
47      * Gigasampler format engine:
48        - fixed a memory leak that could happen when a channel was deleted
49          while notes were playing
50        - made it possible to load an instrument even if the audio thread
51          isn't running
52        - added partial support for the "Controller Triggered" MIDI rule,
53          enough for piano gigs with pedal noise samples
54        - minor fix: only mark FX sends as being modified if really the
55          respective FX send MIDI controller was used
56    
57      * LSCP server:
58        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
59          react on MIDI data arriving on certain sampler channels (so far only
60          Note-On and Note-Off events are sent via this LSCP event)
61        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
62          react on MIDI data arriving on certain MIDI input devices (so far only
63          Note-On and Note-Off events are sent via this LSCP event)
64    
65    Version 0.5.1 (6 December 2007)
66    
67      * packaging changes:
68        - added autoconf checks for pthread library
69        - added autoconf check for pthread bug found on certain NPTL-enabled
70          glibc versions (see Gentoo bug report #194076)
71        - added autoconf checks for MS Windows
72    
73      * general changes:
74        - bugfix: the thread used by an editor plugin didn't die when the
75          editor closed
76        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
77          out all the space. operator--() did not apply size_mask after
78          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
79          order to avoid problems with the _NonVolatileReader functions.
80        - bugfix: Stream.h: added a missing divide by BytesPerSample in
81          GetWriteSpace(). Since this function is currently only used in
82          the stream's qsort() compare function, it didn't trigger any
83          bugs.
84        - Resampler.h, Synthesizer.h: cubic interpolation now works in
85          24bit mode too. Faster method to read 24bit words on little
86          endian machines (x86): replaced 3 byte reads + shifts with a 1
87          unaligned 32bit read and shift
88        - experimental support for MS Windows (MIDI input via MME, AUDIO
89          output via ASIO)
90        - made handling of SIGINT signal (Ctrl-C) a bit more robust
91        - support for monitoring the total number of active disk streams
92          (new LSCP commands: GET TOTAL_STREAM_COUNT,
93          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
94    
95      * AUDIO driver:
96        - added Windows ASIO low latency audio driver
97    
98      * MIDI driver:
99        - added MME Windows MIDI driver
100    
101      * LSCP server:
102        - added support for Windows style path / filenames, however with
103          forward slash path separators instead of backslash
104          (i.e. "C:/foo/bar.gig")
105        - allow naughty liblscp to send non-string device parameters within
106          apostrophes as well
107        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
108          "LIST FILE INSTRUMENTS <file>" and
109          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
110          about an arbitrary instrument file on the system where the sampler is
111          running on
112    
113    Version 0.5.0 (15 October 2007)
114    
115      * packaging changes:
116        - config.h is not going to be installed along with liblinuxsampler's
117          API header files anymore
118        - only the API relevant header (and source) files will be exported to
119          the Doxygen API documentation (explicitly listed in Doxyfile.in)
120        - added completely new XCode project files for Mac OSX which is now
121          capable to execute our autoconf environment, thus no need anymore
122          to maintain the compile time configuration file (osx/version.h) for
123          OSX manually (patch by Toshi Nagata)
124        - fixed buggy boolean --enable-foo / --disable-foo configure script
125          parameters
126        - global.h now only covers global definitions that are needed for the
127          C++ API header files, all implementation internal global definitions
128          are now in global_private.h
129        - atomic.h is not exposed to the C++ API anymore
130        - no need to include config.h anymore for using LS's API header files
131        - fixed warnings in API doc generation
132    
133      * general changes:
134        - replaced the old, confusing MIDI program change mechanism by a
135          flexible MIDI instrument mapper which allows to map arbitrary
136          (MIDI bank, MIDI program) pairs with arbitrary
137          (engine type, instrument file, file index) triplets which will be
138          loaded on the respective channel when such MIDI program change
139          messages arrive, beside that, each entry allows to define a life-time
140          strategy for the instrument, so the user can define whether the
141          instrument should i.e. be permanently loaded (to be able to switch
142          quickly among sounds) or i.e. loaded just on demand when the
143          respective program change arrives (to safe RAM space), as well as a
144          global volume factor for each entry, so the user can adjust the volume
145          dynamic of his mapped instrument collection without having to modify
146          the instrument files, also one can manage arbitrary amount of such
147          MIDI instrument maps and assign each sampler channel individually
148          a certain map, so that i.e. separation of normal instruments and
149          drumkits is possible
150        - new notification events for tracking changes to audio/MIDI devices,
151          MIDI instrument maps, MIDI instruments, FX sends, global volume.
152        - sampler was limited to load max. 200 instruments in the background
153          due to a constant size RingBuffer FIFO which is now replaced by a
154          dynamic (unlimited) size std::list FIFO
155        - added FX sends, these allow to route audio signals to arbitrary audio
156          output channels for being processed by external effect processors
157          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
158          controllers
159        - global (sampler wide) volume can now be controlled at runtime
160        - Implemented new, improved notification system
161        - fixed compilation errors regarding OSX
162          (patch by Toshi Nagata)
163        - implemented instruments database
164        - added support for escape sequences to the instruments database
165        - added highly experimental support for on-the-fly instrument editing
166          within the sampler's process (by using instrument editor plugins),
167          you'll notice the new "Registered instrument editors:" message on
168          startup, added a new LSCP command:
169          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
170          to spawn a matching instrument editor for the instrument on the
171          given sampler channel, the plugin path can be overridden at compile
172          time with ./configure --enable-plugin-dir=/some/dir
173        - added experimental code for synchronizing instrument editors hosted
174          in the sampler's process to safely edit instruments while playing
175          without a crash (hopefully) by either suspending single regions
176          wherever possible or if unavoidable whole engine(s)
177        - fixed several issues in fundamental "Thread" class: set scheduling
178          policy and priority on thread level, set a minimum stack size for
179          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
180          threads simply inherited properties of starting thread instead of
181          setting their own policy and priority
182        - minor fix in our automatic stack trace mechanism on crashes, the
183          main process did not wait for the stack trace process to finish
184          its output
185        - fixed some minor memory leaks
186        - reenabled assembly features support, at the moment only for
187          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
188        - minor assembly fix in x86 features detection (don't use the PIC
189          register, to avoid relocations in the text segment at runtime)
190        - POSIX callback functions of Thread.h are hidden
191    
192      * MIDI driver:
193        - dispatch bank select (MSB and LSB) messages
194    
195      * audio driver:
196        - the ALSA audio output driver parameters now reflect the correct
197          parameter value ranges for the respective selected sound card
198          (patch by Till Wimmer, a bit fixed and extended)
199    
200      * Gigasampler format engine:
201        - if a filter is used and EG2 finishes before EG1, let the voice
202          die when EG2 has finished (this fixes a problem with clicks and
203          voice starvation for some gigs)
204        - playback is no longer disabled during instrument loading
205        - all notes playing on a channel that changes its instrument keep
206          playing with the old instrument until they get a note off
207          command
208        - EG fix: a release value of zero could cause noises or crash
209        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
210        - EG fine tuning: when attack is zero the EG starts at a level
211          above max sustain level, which means that there is a decay phase
212          even if sustain is 100%
213        - more EG fixes: the level could sometimes go below zero and cause
214          noises or crashes
215        - minor fix of EGDecay (patch by Toshi Nagata)
216        - fixed compiler error when --enable-override-filter-type was
217          supplied to the configure script (fixes #46)
218        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
219          instead of a fix value
220        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
221          127 (solo mode) only kill voices if the respective mode really
222          changed
223    
224      * LSCP server:
225        - fixed compile time error for old Bison versions
226          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
227        - parser now supports extended ASCII character set
228          (up to ASCII code 255, i.e. includes now umlauts and accents)
229        - filename arguments in LSCP commands now allow to use escape
230          sequences, that is directly literal as one of: \', \", \\, \n, \r,
231          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
232          code value like \xf2) (fixes bug #24)
233        - the following LSCP commands now also support escape sequences for at
234          least one of their text-based parameters (i.e. name, description):
235          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
236          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
237          "SET DB_INSTRUMENT_DIRECTORY NAME",
238          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
239          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
240          "FIND DB_INSTRUMENT_DIRECTORIES"
241        - returns verbose syntax errors (line and column where syntax error
242          occured, the unexpected character and the actually expected, possible
243          character(s), the latter only if less than 5 possibilities)
244        - made sure that LSCP syntax is not affected by gigedit locale
245          settings
246        - bugfix regarding strings parameter lists: all comma separated lists
247          of strings were treated as being one string containing commas
248          (fixes #57)
249    
250      * Bug fixes:
251        - fixed crash occurring on certain LSCP scripts (Bug 39)
252        - another thread safety fix for lscp "load engine" and "set
253          channel audio output device"
254        - fixed a crash which occurs when reassigning the same engine
255          on a sampler channel with connected MIDI device
256        - fixed a crash which occurs when changing the number of ports of a MIDI
257          device connected to a sampler channel to number less then or equal
258          to the index of the port to which the sampler channel is connected.
259        - The previous bindings were not been disconnected when altering
260          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
261          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
262        - The active stream/voice count statistic was incorrect.
263        - notification events were not been sent for some sampler
264          channel changes
265        - added default min and max values to restrict the number of allowed
266          audio output channels and MIDI input ports
267        - the connection to the PCM interface is now closed when destroying
268          an audio output device
269        - files with slash in their path or filename could not be loaded
270    
271      * test cases:
272        - updated and fixed (haven't been touched in a while)
273    
274    Version 0.4.0 (24 November 2006)
275    
276      * packaging changes:
277        - changed deprecated copyright attribute to license; added ldconfig
278          to post-(un)install steps; added devel package for liblinuxsampler;
279          to linuxsampler.spec (RPM)
280      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
281        applications to link against liblinuxsampler        applications to link against liblinuxsampler
282      - 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 288  Version CVS HEAD (?)
288        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
289      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
290        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
291        - added compile time option to disable processing of All-Notes-Off MIDI
292          messages
293        - added compile time options to allow disabling the various audio and
294          MIDI drivers
295        - fixed automatic GCC CPU switch detection on PPC
296          (patch by Ebrahim Mayat)
297    
298    * Gigasampler format engine:    * Gigasampler format engine:
299      - extensive synthesis optimization      - extensive synthesis optimization
# Line 27  Version CVS HEAD (?) Line 309  Version CVS HEAD (?)
309        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
310        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
311        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
312      - 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.  
313      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
314      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
315        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 50  Version CVS HEAD (?) Line 329  Version CVS HEAD (?)
329        parameter        parameter
330      - added smoothing of volume changes caused by control change      - added smoothing of volume changes caused by control change
331        messages        messages
332        - sample loop parameters are now taken from the DimensionRegion
333          instead of the wave chunk
334        - fixed keyswitching for v3 gigs with a number of keyswitch splits
335          not equal to a power of two
336        - reimplementation of the filter algorithm. The new filter is more
337          accurate and supports all gig filter types, including bandreject
338          and lowpass turbo.
339        - real support for 24 bit samples - samples are not truncated to
340          16 bits anymore
341        - support for aftertouch (channel pressure, not polyphonic
342          aftertouch)
343        - LFO1 behaviour fixed (dampening from max volume instead of
344          amplifying from 0)
345    
346    * LSCP server:    * LSCP server:
347      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 64  Version CVS HEAD (?) Line 356  Version CVS HEAD (?)
356    * MIDI driver:    * MIDI driver:
357      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
358        messages several times instead of once        messages several times instead of once
359        - API extension for MIDI drivers which already supply exact time stamps
360          for events (i.e. for offline rendering based MIDI drivers)
361        - added checks for bad MIDI data
362    
363      * linuxsampler application:
364        - show available sampler engine types on startup
365    
366    * general changes:    * general changes:
367      - 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 78  Version CVS HEAD (?) Line 376  Version CVS HEAD (?)
376        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
377        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
378      - fixed some memory management errors      - fixed some memory management errors
379        - fixed some concurrency problems that could lead to crashes when
380          LSCP commands were executed
381        - fixed crash when instrument loading failed previously on the same
382          sampler channel (fixes bug #36)
383    
384  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
385    

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