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revision 685 by persson, Tue Jul 5 19:30:37 2005 UTC revision 1701 by persson, Sun Feb 17 12:45:56 2008 UTC
# Line 1  Line 1 
1    Version CVS HEAD (?)
2    
3      * 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        - fixed di-harmonic triangle LFO implementation (this LFO implementation
24          is only used by very few systems, most pick the int math
25          implementation, which is usually faster)
26    
27      * audio driver:
28        - removed the nonsense audio channel constraint (which was hard coded to
29          max. 100 audio channels) for most audio drivers
30        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
31          opposed to the LSCP specs
32        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
33          reflected the wrong value
34        - fixed a memory management bug in ASIO driver
35    
36      * MIDI driver:
37        - added JACK MIDI driver
38    
39      * instruments database:
40        - avoid time consuming samples scanning when adding instruments
41          to the instruments database
42    
43      * Gigasampler format engine:
44        - fixed a memory leak that could happen when a channel was deleted
45          while notes were playing
46        - made it possible to load an instrument even if the audio thread
47          isn't running
48        - added partial support for the "Controller Triggered" MIDI rule,
49          enough for piano gigs with pedal noise samples
50    
51      * LSCP server:
52        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
53          react on MIDI data arriving on certain sampler channels (so far only
54          Note-On and Note-Off events are sent via this LSCP event)
55        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
56          react on MIDI data arriving on certain MIDI input devices (so far only
57          Note-On and Note-Off events are sent via this LSCP event)
58    
59    Version 0.5.1 (6 December 2007)
60    
61      * packaging changes:
62        - added autoconf checks for pthread library
63        - added autoconf check for pthread bug found on certain NPTL-enabled
64          glibc versions (see Gentoo bug report #194076)
65        - added autoconf checks for MS Windows
66    
67      * general changes:
68        - bugfix: the thread used by an editor plugin didn't die when the
69          editor closed
70        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
71          out all the space. operator--() did not apply size_mask after
72          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
73          order to avoid problems with the _NonVolatileReader functions.
74        - bugfix: Stream.h: added a missing divide by BytesPerSample in
75          GetWriteSpace(). Since this function is currently only used in
76          the stream's qsort() compare function, it didn't trigger any
77          bugs.
78        - Resampler.h, Synthesizer.h: cubic interpolation now works in
79          24bit mode too. Faster method to read 24bit words on little
80          endian machines (x86): replaced 3 byte reads + shifts with a 1
81          unaligned 32bit read and shift
82        - experimental support for MS Windows (MIDI input via MME, AUDIO
83          output via ASIO)
84        - made handling of SIGINT signal (Ctrl-C) a bit more robust
85        - support for monitoring the total number of active disk streams
86          (new LSCP commands: GET TOTAL_STREAM_COUNT,
87          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
88    
89      * AUDIO driver:
90        - added Windows ASIO low latency audio driver
91    
92      * MIDI driver:
93        - added MME Windows MIDI driver
94    
95      * LSCP server:
96        - added support for Windows style path / filenames, however with
97          forward slash path separators instead of backslash
98          (i.e. "C:/foo/bar.gig")
99        - allow naughty liblscp to send non-string device parameters within
100          apostrophes as well
101        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
102          "LIST FILE INSTRUMENTS <file>" and
103          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
104          about an arbitrary instrument file on the system where the sampler is
105          running on
106    
107    Version 0.5.0 (15 October 2007)
108    
109      * packaging changes:
110        - config.h is not going to be installed along with liblinuxsampler's
111          API header files anymore
112        - only the API relevant header (and source) files will be exported to
113          the Doxygen API documentation (explicitly listed in Doxyfile.in)
114        - added completely new XCode project files for Mac OSX which is now
115          capable to execute our autoconf environment, thus no need anymore
116          to maintain the compile time configuration file (osx/version.h) for
117          OSX manually (patch by Toshi Nagata)
118        - fixed buggy boolean --enable-foo / --disable-foo configure script
119          parameters
120        - global.h now only covers global definitions that are needed for the
121          C++ API header files, all implementation internal global definitions
122          are now in global_private.h
123        - atomic.h is not exposed to the C++ API anymore
124        - no need to include config.h anymore for using LS's API header files
125        - fixed warnings in API doc generation
126    
127      * general changes:
128        - replaced the old, confusing MIDI program change mechanism by a
129          flexible MIDI instrument mapper which allows to map arbitrary
130          (MIDI bank, MIDI program) pairs with arbitrary
131          (engine type, instrument file, file index) triplets which will be
132          loaded on the respective channel when such MIDI program change
133          messages arrive, beside that, each entry allows to define a life-time
134          strategy for the instrument, so the user can define whether the
135          instrument should i.e. be permanently loaded (to be able to switch
136          quickly among sounds) or i.e. loaded just on demand when the
137          respective program change arrives (to safe RAM space), as well as a
138          global volume factor for each entry, so the user can adjust the volume
139          dynamic of his mapped instrument collection without having to modify
140          the instrument files, also one can manage arbitrary amount of such
141          MIDI instrument maps and assign each sampler channel individually
142          a certain map, so that i.e. separation of normal instruments and
143          drumkits is possible
144        - new notification events for tracking changes to audio/MIDI devices,
145          MIDI instrument maps, MIDI instruments, FX sends, global volume.
146        - sampler was limited to load max. 200 instruments in the background
147          due to a constant size RingBuffer FIFO which is now replaced by a
148          dynamic (unlimited) size std::list FIFO
149        - added FX sends, these allow to route audio signals to arbitrary audio
150          output channels for being processed by external effect processors
151          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
152          controllers
153        - global (sampler wide) volume can now be controlled at runtime
154        - Implemented new, improved notification system
155        - fixed compilation errors regarding OSX
156          (patch by Toshi Nagata)
157        - implemented instruments database
158        - added support for escape sequences to the instruments database
159        - added highly experimental support for on-the-fly instrument editing
160          within the sampler's process (by using instrument editor plugins),
161          you'll notice the new "Registered instrument editors:" message on
162          startup, added a new LSCP command:
163          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
164          to spawn a matching instrument editor for the instrument on the
165          given sampler channel, the plugin path can be overridden at compile
166          time with ./configure --enable-plugin-dir=/some/dir
167        - added experimental code for synchronizing instrument editors hosted
168          in the sampler's process to safely edit instruments while playing
169          without a crash (hopefully) by either suspending single regions
170          wherever possible or if unavoidable whole engine(s)
171        - fixed several issues in fundamental "Thread" class: set scheduling
172          policy and priority on thread level, set a minimum stack size for
173          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
174          threads simply inherited properties of starting thread instead of
175          setting their own policy and priority
176        - minor fix in our automatic stack trace mechanism on crashes, the
177          main process did not wait for the stack trace process to finish
178          its output
179        - fixed some minor memory leaks
180        - reenabled assembly features support, at the moment only for
181          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
182        - minor assembly fix in x86 features detection (don't use the PIC
183          register, to avoid relocations in the text segment at runtime)
184        - POSIX callback functions of Thread.h are hidden
185    
186      * MIDI driver:
187        - dispatch bank select (MSB and LSB) messages
188    
189      * audio driver:
190        - the ALSA audio output driver parameters now reflect the correct
191          parameter value ranges for the respective selected sound card
192          (patch by Till Wimmer, a bit fixed and extended)
193    
194      * Gigasampler format engine:
195        - if a filter is used and EG2 finishes before EG1, let the voice
196          die when EG2 has finished (this fixes a problem with clicks and
197          voice starvation for some gigs)
198        - playback is no longer disabled during instrument loading
199        - all notes playing on a channel that changes its instrument keep
200          playing with the old instrument until they get a note off
201          command
202        - EG fix: a release value of zero could cause noises or crash
203        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
204        - EG fine tuning: when attack is zero the EG starts at a level
205          above max sustain level, which means that there is a decay phase
206          even if sustain is 100%
207        - more EG fixes: the level could sometimes go below zero and cause
208          noises or crashes
209        - minor fix of EGDecay (patch by Toshi Nagata)
210        - fixed compiler error when --enable-override-filter-type was
211          supplied to the configure script (fixes #46)
212        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
213          instead of a fix value
214        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
215          127 (solo mode) only kill voices if the respective mode really
216          changed
217    
218      * LSCP server:
219        - fixed compile time error for old Bison versions
220          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
221        - parser now supports extended ASCII character set
222          (up to ASCII code 255, i.e. includes now umlauts and accents)
223        - filename arguments in LSCP commands now allow to use escape
224          sequences, that is directly literal as one of: \', \", \\, \n, \r,
225          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
226          code value like \xf2) (fixes bug #24)
227        - the following LSCP commands now also support escape sequences for at
228          least one of their text-based parameters (i.e. name, description):
229          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
230          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
231          "SET DB_INSTRUMENT_DIRECTORY NAME",
232          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
233          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
234          "FIND DB_INSTRUMENT_DIRECTORIES"
235        - returns verbose syntax errors (line and column where syntax error
236          occured, the unexpected character and the actually expected, possible
237          character(s), the latter only if less than 5 possibilities)
238        - made sure that LSCP syntax is not affected by gigedit locale
239          settings
240        - bugfix regarding strings parameter lists: all comma separated lists
241          of strings were treated as being one string containing commas
242          (fixes #57)
243    
244      * Bug fixes:
245        - fixed crash occurring on certain LSCP scripts (Bug 39)
246        - another thread safety fix for lscp "load engine" and "set
247          channel audio output device"
248        - fixed a crash which occurs when reassigning the same engine
249          on a sampler channel with connected MIDI device
250        - fixed a crash which occurs when changing the number of ports of a MIDI
251          device connected to a sampler channel to number less then or equal
252          to the index of the port to which the sampler channel is connected.
253        - The previous bindings were not been disconnected when altering
254          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
255          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
256        - The active stream/voice count statistic was incorrect.
257        - notification events were not been sent for some sampler
258          channel changes
259        - added default min and max values to restrict the number of allowed
260          audio output channels and MIDI input ports
261        - the connection to the PCM interface is now closed when destroying
262          an audio output device
263        - files with slash in their path or filename could not be loaded
264    
265      * test cases:
266        - updated and fixed (haven't been touched in a while)
267    
268    Version 0.4.0 (24 November 2006)
269    
270      * packaging changes:
271        - changed deprecated copyright attribute to license; added ldconfig
272          to post-(un)install steps; added devel package for liblinuxsampler;
273          to linuxsampler.spec (RPM)
274        - install necessary development header files for allowing 3rd party
275          applications to link against liblinuxsampler
276        - liblinuxsampler's API documentation can be generated with 'make docs'
277          (Doxygen required)
278        - added benchmark to automatically detect the best triangle LFO
279          implementation (currently either an integer math solution or a
280          di-harmonic approximation), automatic detection can be overriden
281          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
282          configure script argument though (mandatory for cross-compilation)
283        - do not automatically pick optimized gcc flags if the user already
284          provided some on his own (as CXXFLAGS)
285        - added compile time option to disable processing of All-Notes-Off MIDI
286          messages
287        - added compile time options to allow disabling the various audio and
288          MIDI drivers
289        - fixed automatic GCC CPU switch detection on PPC
290          (patch by Ebrahim Mayat)
291    
292      * Gigasampler format engine:
293        - extensive synthesis optimization
294          (reimplementation of EGs and LFO(s), removed synthesis parameter
295          prerendering and the synthesis parameter matrix in general, splitting
296          each audio fragment into subfragments now where each subfragment uses
297          constant pitch and filter coefficients. The volume coefficient is
298          linearly interpolated inside a subfragment, unless
299          --disable-interpolate-volume is set.)
300        - fine tuning of the EG modulation parameters
301        - improved filter cutoff calculation by adding support for the
302          following gig parameters: Cutoff freq (used when no cutoff
303          controller is defined), Control invert, Minimum cutoff, Velocity
304          curve and Velocity range. The keyboard tracking now scales
305          cutoff frequency instead of resonance.
306        - added support for gig parameter Resonance.
307        - fixed bug in sysex handling (patch by Juan Linietsky)
308        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
309          which can be overridden with --enable-global-attenuation
310        - EG fixes: made the length of "attack hold" stage more
311          accurate. Release stage can now start before attack stage
312          ends. Cancel release didn't work when sustain was zero. Attack
313          time now has a minimal value to prevent clicks.
314        - fixed pitch changes larger than one octave
315        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
316        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
317          all modes can be altered via standard GM messages, that is CC5 for
318          altering portamento time, CC65 for enabling / disabling portamento
319          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
320        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
321          parameter) and crossfade
322        - added support for the "attenuation controller threshold" gig
323          parameter
324        - added smoothing of volume changes caused by control change
325          messages
326        - sample loop parameters are now taken from the DimensionRegion
327          instead of the wave chunk
328        - fixed keyswitching for v3 gigs with a number of keyswitch splits
329          not equal to a power of two
330        - reimplementation of the filter algorithm. The new filter is more
331          accurate and supports all gig filter types, including bandreject
332          and lowpass turbo.
333        - real support for 24 bit samples - samples are not truncated to
334          16 bits anymore
335        - support for aftertouch (channel pressure, not polyphonic
336          aftertouch)
337        - LFO1 behaviour fixed (dampening from max volume instead of
338          amplifying from 0)
339    
340      * LSCP server:
341        - fixed application exit on broken pipe error (fixes bug #20)
342        - fixed the notification messages delay due to lack of
343          network activity (fixes bug #26)
344        - fixed parser bug which occured on space(s) within device parameters
345          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
346    
347      * audio driver:
348        - added aRts audio output driver (by no means RT safe)
349    
350      * MIDI driver:
351        - fixed legacy sysex code which caused dispatching of MIDI SysEx
352          messages several times instead of once
353        - API extension for MIDI drivers which already supply exact time stamps
354          for events (i.e. for offline rendering based MIDI drivers)
355        - added checks for bad MIDI data
356    
357      * linuxsampler application:
358        - show available sampler engine types on startup
359    
360      * general changes:
361        - support for muting sampler channels and solo mode of the same, two new
362          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
363          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
364          introduced for this, the behavior is the same like on a mixer console
365          (patch by Grigor Iliev, a bit adjusted). Also added configure option
366          --enable-process-muted-channels which can be used to enable the
367          processing of muted channels.
368        - support for sostenuto pedal
369        - support for monitoring the total number of active voices
370          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
371          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
372        - fixed some memory management errors
373        - fixed some concurrency problems that could lead to crashes when
374          LSCP commands were executed
375        - fixed crash when instrument loading failed previously on the same
376          sampler channel (fixes bug #36)
377    
378    Version 0.3.3 (15 July 2005)
379    
380      * packaging changes:
381        - fixed compilation with gcc 4.0
382    
383      * Gigasampler format engine:
384        - LFO preprocessing was performed even though the respective LFO was
385          disabled by the instrument patch (minor efficiency fix)
386        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
387          for volume ramp downs in the same fragment (needed for current voice
388          stealing implementation) then simply inform the user with a warning
389          about possible click sounds and reduce the volume ramp down
390          appropriately instead of cancelling the audio device connection
391    
392  Version 0.3.2 (24 June 2005)  Version 0.3.2 (24 June 2005)
393    
394    * packaging changes:    * packaging changes:
# Line 8  Version 0.3.2 (24 June 2005) Line 399  Version 0.3.2 (24 June 2005)
399      - fixed 'make dist' rule to include all necessary files      - fixed 'make dist' rule to include all necessary files
400      - require automake (>= 1.5) for 'make -f Makefile.cvs'      - require automake (>= 1.5) for 'make -f Makefile.cvs'
401        (due to 'dist-bzip2' automake option)        (due to 'dist-bzip2' automake option)
     - fixed compilation with gcc 4.0  
402    
403    * Gigasampler format engine:    * Gigasampler format engine:
404      - support for the gig parameters for "release velocity response" curves      - support for the gig parameters for "release velocity response" curves

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