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revision 669 by schoenebeck, Tue Jun 21 13:33:19 2005 UTC revision 1727 by iliev, Tue Apr 29 15:44:09 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        - added support for handling lost files in the instruments database
47    
48      * Gigasampler format engine:
49        - fixed a memory leak that could happen when a channel was deleted
50          while notes were playing
51        - made it possible to load an instrument even if the audio thread
52          isn't running
53        - added partial support for the "Controller Triggered" MIDI rule,
54          enough for piano gigs with pedal noise samples
55        - minor fix: only mark FX sends as being modified if really the
56          respective FX send MIDI controller was used
57        - added support for GM global device volume SysEx message
58    
59      * LSCP server:
60        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
61          react on MIDI data arriving on certain sampler channels (so far only
62          Note-On and Note-Off events are sent via this LSCP event)
63        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
64          react on MIDI data arriving on certain MIDI input devices (so far only
65          Note-On and Note-Off events are sent via this LSCP event)
66        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
67          SET DB_INSTRUMENT FILE_PATH
68    
69    Version 0.5.1 (6 December 2007)
70    
71      * packaging changes:
72        - added autoconf checks for pthread library
73        - added autoconf check for pthread bug found on certain NPTL-enabled
74          glibc versions (see Gentoo bug report #194076)
75        - added autoconf checks for MS Windows
76    
77      * general changes:
78        - bugfix: the thread used by an editor plugin didn't die when the
79          editor closed
80        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
81          out all the space. operator--() did not apply size_mask after
82          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
83          order to avoid problems with the _NonVolatileReader functions.
84        - bugfix: Stream.h: added a missing divide by BytesPerSample in
85          GetWriteSpace(). Since this function is currently only used in
86          the stream's qsort() compare function, it didn't trigger any
87          bugs.
88        - Resampler.h, Synthesizer.h: cubic interpolation now works in
89          24bit mode too. Faster method to read 24bit words on little
90          endian machines (x86): replaced 3 byte reads + shifts with a 1
91          unaligned 32bit read and shift
92        - experimental support for MS Windows (MIDI input via MME, AUDIO
93          output via ASIO)
94        - made handling of SIGINT signal (Ctrl-C) a bit more robust
95        - support for monitoring the total number of active disk streams
96          (new LSCP commands: GET TOTAL_STREAM_COUNT,
97          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
98    
99      * AUDIO driver:
100        - added Windows ASIO low latency audio driver
101    
102      * MIDI driver:
103        - added MME Windows MIDI driver
104    
105      * LSCP server:
106        - added support for Windows style path / filenames, however with
107          forward slash path separators instead of backslash
108          (i.e. "C:/foo/bar.gig")
109        - allow naughty liblscp to send non-string device parameters within
110          apostrophes as well
111        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
112          "LIST FILE INSTRUMENTS <file>" and
113          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
114          about an arbitrary instrument file on the system where the sampler is
115          running on
116    
117    Version 0.5.0 (15 October 2007)
118    
119      * packaging changes:
120        - config.h is not going to be installed along with liblinuxsampler's
121          API header files anymore
122        - only the API relevant header (and source) files will be exported to
123          the Doxygen API documentation (explicitly listed in Doxyfile.in)
124        - added completely new XCode project files for Mac OSX which is now
125          capable to execute our autoconf environment, thus no need anymore
126          to maintain the compile time configuration file (osx/version.h) for
127          OSX manually (patch by Toshi Nagata)
128        - fixed buggy boolean --enable-foo / --disable-foo configure script
129          parameters
130        - global.h now only covers global definitions that are needed for the
131          C++ API header files, all implementation internal global definitions
132          are now in global_private.h
133        - atomic.h is not exposed to the C++ API anymore
134        - no need to include config.h anymore for using LS's API header files
135        - fixed warnings in API doc generation
136    
137      * general changes:
138        - replaced the old, confusing MIDI program change mechanism by a
139          flexible MIDI instrument mapper which allows to map arbitrary
140          (MIDI bank, MIDI program) pairs with arbitrary
141          (engine type, instrument file, file index) triplets which will be
142          loaded on the respective channel when such MIDI program change
143          messages arrive, beside that, each entry allows to define a life-time
144          strategy for the instrument, so the user can define whether the
145          instrument should i.e. be permanently loaded (to be able to switch
146          quickly among sounds) or i.e. loaded just on demand when the
147          respective program change arrives (to safe RAM space), as well as a
148          global volume factor for each entry, so the user can adjust the volume
149          dynamic of his mapped instrument collection without having to modify
150          the instrument files, also one can manage arbitrary amount of such
151          MIDI instrument maps and assign each sampler channel individually
152          a certain map, so that i.e. separation of normal instruments and
153          drumkits is possible
154        - new notification events for tracking changes to audio/MIDI devices,
155          MIDI instrument maps, MIDI instruments, FX sends, global volume.
156        - sampler was limited to load max. 200 instruments in the background
157          due to a constant size RingBuffer FIFO which is now replaced by a
158          dynamic (unlimited) size std::list FIFO
159        - added FX sends, these allow to route audio signals to arbitrary audio
160          output channels for being processed by external effect processors
161          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
162          controllers
163        - global (sampler wide) volume can now be controlled at runtime
164        - Implemented new, improved notification system
165        - fixed compilation errors regarding OSX
166          (patch by Toshi Nagata)
167        - implemented instruments database
168        - added support for escape sequences to the instruments database
169        - added highly experimental support for on-the-fly instrument editing
170          within the sampler's process (by using instrument editor plugins),
171          you'll notice the new "Registered instrument editors:" message on
172          startup, added a new LSCP command:
173          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
174          to spawn a matching instrument editor for the instrument on the
175          given sampler channel, the plugin path can be overridden at compile
176          time with ./configure --enable-plugin-dir=/some/dir
177        - added experimental code for synchronizing instrument editors hosted
178          in the sampler's process to safely edit instruments while playing
179          without a crash (hopefully) by either suspending single regions
180          wherever possible or if unavoidable whole engine(s)
181        - fixed several issues in fundamental "Thread" class: set scheduling
182          policy and priority on thread level, set a minimum stack size for
183          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
184          threads simply inherited properties of starting thread instead of
185          setting their own policy and priority
186        - minor fix in our automatic stack trace mechanism on crashes, the
187          main process did not wait for the stack trace process to finish
188          its output
189        - fixed some minor memory leaks
190        - reenabled assembly features support, at the moment only for
191          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
192        - minor assembly fix in x86 features detection (don't use the PIC
193          register, to avoid relocations in the text segment at runtime)
194        - POSIX callback functions of Thread.h are hidden
195    
196      * MIDI driver:
197        - dispatch bank select (MSB and LSB) messages
198    
199      * audio driver:
200        - the ALSA audio output driver parameters now reflect the correct
201          parameter value ranges for the respective selected sound card
202          (patch by Till Wimmer, a bit fixed and extended)
203    
204      * Gigasampler format engine:
205        - if a filter is used and EG2 finishes before EG1, let the voice
206          die when EG2 has finished (this fixes a problem with clicks and
207          voice starvation for some gigs)
208        - playback is no longer disabled during instrument loading
209        - all notes playing on a channel that changes its instrument keep
210          playing with the old instrument until they get a note off
211          command
212        - EG fix: a release value of zero could cause noises or crash
213        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
214        - EG fine tuning: when attack is zero the EG starts at a level
215          above max sustain level, which means that there is a decay phase
216          even if sustain is 100%
217        - more EG fixes: the level could sometimes go below zero and cause
218          noises or crashes
219        - minor fix of EGDecay (patch by Toshi Nagata)
220        - fixed compiler error when --enable-override-filter-type was
221          supplied to the configure script (fixes #46)
222        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
223          instead of a fix value
224        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
225          127 (solo mode) only kill voices if the respective mode really
226          changed
227    
228      * LSCP server:
229        - fixed compile time error for old Bison versions
230          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
231        - parser now supports extended ASCII character set
232          (up to ASCII code 255, i.e. includes now umlauts and accents)
233        - filename arguments in LSCP commands now allow to use escape
234          sequences, that is directly literal as one of: \', \", \\, \n, \r,
235          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
236          code value like \xf2) (fixes bug #24)
237        - the following LSCP commands now also support escape sequences for at
238          least one of their text-based parameters (i.e. name, description):
239          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
240          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
241          "SET DB_INSTRUMENT_DIRECTORY NAME",
242          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
243          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
244          "FIND DB_INSTRUMENT_DIRECTORIES"
245        - returns verbose syntax errors (line and column where syntax error
246          occured, the unexpected character and the actually expected, possible
247          character(s), the latter only if less than 5 possibilities)
248        - made sure that LSCP syntax is not affected by gigedit locale
249          settings
250        - bugfix regarding strings parameter lists: all comma separated lists
251          of strings were treated as being one string containing commas
252          (fixes #57)
253    
254      * Bug fixes:
255        - fixed crash occurring on certain LSCP scripts (Bug 39)
256        - another thread safety fix for lscp "load engine" and "set
257          channel audio output device"
258        - fixed a crash which occurs when reassigning the same engine
259          on a sampler channel with connected MIDI device
260        - fixed a crash which occurs when changing the number of ports of a MIDI
261          device connected to a sampler channel to number less then or equal
262          to the index of the port to which the sampler channel is connected.
263        - The previous bindings were not been disconnected when altering
264          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
265          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
266        - The active stream/voice count statistic was incorrect.
267        - notification events were not been sent for some sampler
268          channel changes
269        - added default min and max values to restrict the number of allowed
270          audio output channels and MIDI input ports
271        - the connection to the PCM interface is now closed when destroying
272          an audio output device
273        - files with slash in their path or filename could not be loaded
274    
275      * test cases:
276        - updated and fixed (haven't been touched in a while)
277    
278    Version 0.4.0 (24 November 2006)
279    
280      * packaging changes:
281        - changed deprecated copyright attribute to license; added ldconfig
282          to post-(un)install steps; added devel package for liblinuxsampler;
283          to linuxsampler.spec (RPM)
284        - install necessary development header files for allowing 3rd party
285          applications to link against liblinuxsampler
286        - liblinuxsampler's API documentation can be generated with 'make docs'
287          (Doxygen required)
288        - added benchmark to automatically detect the best triangle LFO
289          implementation (currently either an integer math solution or a
290          di-harmonic approximation), automatic detection can be overriden
291          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
292          configure script argument though (mandatory for cross-compilation)
293        - do not automatically pick optimized gcc flags if the user already
294          provided some on his own (as CXXFLAGS)
295        - added compile time option to disable processing of All-Notes-Off MIDI
296          messages
297        - added compile time options to allow disabling the various audio and
298          MIDI drivers
299        - fixed automatic GCC CPU switch detection on PPC
300          (patch by Ebrahim Mayat)
301    
302      * Gigasampler format engine:
303        - extensive synthesis optimization
304          (reimplementation of EGs and LFO(s), removed synthesis parameter
305          prerendering and the synthesis parameter matrix in general, splitting
306          each audio fragment into subfragments now where each subfragment uses
307          constant pitch and filter coefficients. The volume coefficient is
308          linearly interpolated inside a subfragment, unless
309          --disable-interpolate-volume is set.)
310        - fine tuning of the EG modulation parameters
311        - improved filter cutoff calculation by adding support for the
312          following gig parameters: Cutoff freq (used when no cutoff
313          controller is defined), Control invert, Minimum cutoff, Velocity
314          curve and Velocity range. The keyboard tracking now scales
315          cutoff frequency instead of resonance.
316        - added support for gig parameter Resonance.
317        - fixed bug in sysex handling (patch by Juan Linietsky)
318        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
319          which can be overridden with --enable-global-attenuation
320        - EG fixes: made the length of "attack hold" stage more
321          accurate. Release stage can now start before attack stage
322          ends. Cancel release didn't work when sustain was zero. Attack
323          time now has a minimal value to prevent clicks.
324        - fixed pitch changes larger than one octave
325        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
326        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
327          all modes can be altered via standard GM messages, that is CC5 for
328          altering portamento time, CC65 for enabling / disabling portamento
329          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
330        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
331          parameter) and crossfade
332        - added support for the "attenuation controller threshold" gig
333          parameter
334        - added smoothing of volume changes caused by control change
335          messages
336        - sample loop parameters are now taken from the DimensionRegion
337          instead of the wave chunk
338        - fixed keyswitching for v3 gigs with a number of keyswitch splits
339          not equal to a power of two
340        - reimplementation of the filter algorithm. The new filter is more
341          accurate and supports all gig filter types, including bandreject
342          and lowpass turbo.
343        - real support for 24 bit samples - samples are not truncated to
344          16 bits anymore
345        - support for aftertouch (channel pressure, not polyphonic
346          aftertouch)
347        - LFO1 behaviour fixed (dampening from max volume instead of
348          amplifying from 0)
349    
350      * LSCP server:
351        - fixed application exit on broken pipe error (fixes bug #20)
352        - fixed the notification messages delay due to lack of
353          network activity (fixes bug #26)
354        - fixed parser bug which occured on space(s) within device parameters
355          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
356    
357      * audio driver:
358        - added aRts audio output driver (by no means RT safe)
359    
360      * MIDI driver:
361        - fixed legacy sysex code which caused dispatching of MIDI SysEx
362          messages several times instead of once
363        - API extension for MIDI drivers which already supply exact time stamps
364          for events (i.e. for offline rendering based MIDI drivers)
365        - added checks for bad MIDI data
366    
367      * linuxsampler application:
368        - show available sampler engine types on startup
369    
370      * general changes:
371        - support for muting sampler channels and solo mode of the same, two new
372          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
373          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
374          introduced for this, the behavior is the same like on a mixer console
375          (patch by Grigor Iliev, a bit adjusted). Also added configure option
376          --enable-process-muted-channels which can be used to enable the
377          processing of muted channels.
378        - support for sostenuto pedal
379        - support for monitoring the total number of active voices
380          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
381          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
382        - fixed some memory management errors
383        - fixed some concurrency problems that could lead to crashes when
384          LSCP commands were executed
385        - fixed crash when instrument loading failed previously on the same
386          sampler channel (fixes bug #36)
387    
388    Version 0.3.3 (15 July 2005)
389    
390      * packaging changes:
391        - fixed compilation with gcc 4.0
392    
393      * Gigasampler format engine:
394        - LFO preprocessing was performed even though the respective LFO was
395          disabled by the instrument patch (minor efficiency fix)
396        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
397          for volume ramp downs in the same fragment (needed for current voice
398          stealing implementation) then simply inform the user with a warning
399          about possible click sounds and reduce the volume ramp down
400          appropriately instead of cancelling the audio device connection
401    
402    Version 0.3.2 (24 June 2005)
403    
404      * packaging changes:
405      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
406        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
407      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
# Line 25  Version CVS HEAD (?) Line 426  Version CVS HEAD (?)
426      - fixed minor issue with null/silence samples      - fixed minor issue with null/silence samples
427        (those stole voices even though they don't need a voice at all which        (those stole voices even though they don't need a voice at all which
428        resulted in "voice stealing didn't work out" messages)        resulted in "voice stealing didn't work out" messages)
429        - don't reset volume, pan, pitch and MIDI controller values on
430          instrument or audio output device change
431    
432    * LSCP server:    * LSCP server:
433      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
434      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
435        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
436    
437    * linuxsampler application:    * linuxsampler application:
438      - 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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