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revision 716 by iliev, Sun Jul 24 06:57:30 2005 UTC revision 1644 by persson, Sat Jan 19 16:55:03 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    
19      * audio driver:
20        - removed the nonsense audio channel constraint (which was hard coded to
21          max. 100 audio channels) for most audio drivers
22        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
23          opposed to the LSCP specs
24        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
25          reflected the wrong value
26        - fixed a memory management bug in ASIO driver
27    
28      * instruments database:
29        - avoid time consuming samples scanning when adding instruments
30          to the instruments database
31    
32      * Gigasampler format engine:
33        - fixed a memory leak that could happen when a channel was deleted
34          while notes were playing
35    
36    Version 0.5.1 (6 December 2007)
37    
38      * packaging changes:
39        - added autoconf checks for pthread library
40        - added autoconf check for pthread bug found on certain NPTL-enabled
41          glibc versions (see Gentoo bug report #194076)
42        - added autoconf checks for MS Windows
43    
44      * general changes:
45        - bugfix: the thread used by an editor plugin didn't die when the
46          editor closed
47        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
48          out all the space. operator--() did not apply size_mask after
49          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
50          order to avoid problems with the _NonVolatileReader functions.
51        - bugfix: Stream.h: added a missing divide by BytesPerSample in
52          GetWriteSpace(). Since this function is currently only used in
53          the stream's qsort() compare function, it didn't trigger any
54          bugs.
55        - Resampler.h, Synthesizer.h: cubic interpolation now works in
56          24bit mode too. Faster method to read 24bit words on little
57          endian machines (x86): replaced 3 byte reads + shifts with a 1
58          unaligned 32bit read and shift
59        - experimental support for MS Windows (MIDI input via MME, AUDIO
60          output via ASIO)
61        - made handling of SIGINT signal (Ctrl-C) a bit more robust
62        - support for monitoring the total number of active disk streams
63          (new LSCP commands: GET TOTAL_STREAM_COUNT,
64          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
65    
66      * AUDIO driver:
67        - added Windows ASIO low latency audio driver
68    
69      * MIDI driver:
70        - added MME Windows MIDI driver
71    
72      * LSCP server:
73        - added support for Windows style path / filenames, however with
74          forward slash path separators instead of backslash
75          (i.e. "C:/foo/bar.gig")
76        - allow naughty liblscp to send non-string device parameters within
77          apostrophes as well
78        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
79          "LIST FILE INSTRUMENTS <file>" and
80          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
81          about an arbitrary instrument file on the system where the sampler is
82          running on
83    
84    Version 0.5.0 (15 October 2007)
85    
86      * packaging changes:
87        - config.h is not going to be installed along with liblinuxsampler's
88          API header files anymore
89        - only the API relevant header (and source) files will be exported to
90          the Doxygen API documentation (explicitly listed in Doxyfile.in)
91        - added completely new XCode project files for Mac OSX which is now
92          capable to execute our autoconf environment, thus no need anymore
93          to maintain the compile time configuration file (osx/version.h) for
94          OSX manually (patch by Toshi Nagata)
95        - fixed buggy boolean --enable-foo / --disable-foo configure script
96          parameters
97        - global.h now only covers global definitions that are needed for the
98          C++ API header files, all implementation internal global definitions
99          are now in global_private.h
100        - atomic.h is not exposed to the C++ API anymore
101        - no need to include config.h anymore for using LS's API header files
102        - fixed warnings in API doc generation
103    
104      * general changes:
105        - replaced the old, confusing MIDI program change mechanism by a
106          flexible MIDI instrument mapper which allows to map arbitrary
107          (MIDI bank, MIDI program) pairs with arbitrary
108          (engine type, instrument file, file index) triplets which will be
109          loaded on the respective channel when such MIDI program change
110          messages arrive, beside that, each entry allows to define a life-time
111          strategy for the instrument, so the user can define whether the
112          instrument should i.e. be permanently loaded (to be able to switch
113          quickly among sounds) or i.e. loaded just on demand when the
114          respective program change arrives (to safe RAM space), as well as a
115          global volume factor for each entry, so the user can adjust the volume
116          dynamic of his mapped instrument collection without having to modify
117          the instrument files, also one can manage arbitrary amount of such
118          MIDI instrument maps and assign each sampler channel individually
119          a certain map, so that i.e. separation of normal instruments and
120          drumkits is possible
121        - new notification events for tracking changes to audio/MIDI devices,
122          MIDI instrument maps, MIDI instruments, FX sends, global volume.
123        - sampler was limited to load max. 200 instruments in the background
124          due to a constant size RingBuffer FIFO which is now replaced by a
125          dynamic (unlimited) size std::list FIFO
126        - added FX sends, these allow to route audio signals to arbitrary audio
127          output channels for being processed by external effect processors
128          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
129          controllers
130        - global (sampler wide) volume can now be controlled at runtime
131        - Implemented new, improved notification system
132        - fixed compilation errors regarding OSX
133          (patch by Toshi Nagata)
134        - implemented instruments database
135        - added support for escape sequences to the instruments database
136        - added highly experimental support for on-the-fly instrument editing
137          within the sampler's process (by using instrument editor plugins),
138          you'll notice the new "Registered instrument editors:" message on
139          startup, added a new LSCP command:
140          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
141          to spawn a matching instrument editor for the instrument on the
142          given sampler channel, the plugin path can be overridden at compile
143          time with ./configure --enable-plugin-dir=/some/dir
144        - added experimental code for synchronizing instrument editors hosted
145          in the sampler's process to safely edit instruments while playing
146          without a crash (hopefully) by either suspending single regions
147          wherever possible or if unavoidable whole engine(s)
148        - fixed several issues in fundamental "Thread" class: set scheduling
149          policy and priority on thread level, set a minimum stack size for
150          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
151          threads simply inherited properties of starting thread instead of
152          setting their own policy and priority
153        - minor fix in our automatic stack trace mechanism on crashes, the
154          main process did not wait for the stack trace process to finish
155          its output
156        - fixed some minor memory leaks
157        - reenabled assembly features support, at the moment only for
158          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
159        - minor assembly fix in x86 features detection (don't use the PIC
160          register, to avoid relocations in the text segment at runtime)
161        - POSIX callback functions of Thread.h are hidden
162    
163      * MIDI driver:
164        - dispatch bank select (MSB and LSB) messages
165    
166      * audio driver:
167        - the ALSA audio output driver parameters now reflect the correct
168          parameter value ranges for the respective selected sound card
169          (patch by Till Wimmer, a bit fixed and extended)
170    
171      * Gigasampler format engine:
172        - if a filter is used and EG2 finishes before EG1, let the voice
173          die when EG2 has finished (this fixes a problem with clicks and
174          voice starvation for some gigs)
175        - playback is no longer disabled during instrument loading
176        - all notes playing on a channel that changes its instrument keep
177          playing with the old instrument until they get a note off
178          command
179        - EG fix: a release value of zero could cause noises or crash
180        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
181        - EG fine tuning: when attack is zero the EG starts at a level
182          above max sustain level, which means that there is a decay phase
183          even if sustain is 100%
184        - more EG fixes: the level could sometimes go below zero and cause
185          noises or crashes
186        - minor fix of EGDecay (patch by Toshi Nagata)
187        - fixed compiler error when --enable-override-filter-type was
188          supplied to the configure script (fixes #46)
189        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
190          instead of a fix value
191        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
192          127 (solo mode) only kill voices if the respective mode really
193          changed
194    
195      * LSCP server:
196        - fixed compile time error for old Bison versions
197          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
198        - parser now supports extended ASCII character set
199          (up to ASCII code 255, i.e. includes now umlauts and accents)
200        - filename arguments in LSCP commands now allow to use escape
201          sequences, that is directly literal as one of: \', \", \\, \n, \r,
202          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
203          code value like \xf2) (fixes bug #24)
204        - the following LSCP commands now also support escape sequences for at
205          least one of their text-based parameters (i.e. name, description):
206          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
207          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
208          "SET DB_INSTRUMENT_DIRECTORY NAME",
209          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
210          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
211          "FIND DB_INSTRUMENT_DIRECTORIES"
212        - returns verbose syntax errors (line and column where syntax error
213          occured, the unexpected character and the actually expected, possible
214          character(s), the latter only if less than 5 possibilities)
215        - made sure that LSCP syntax is not affected by gigedit locale
216          settings
217        - bugfix regarding strings parameter lists: all comma separated lists
218          of strings were treated as being one string containing commas
219          (fixes #57)
220    
221      * Bug fixes:
222        - fixed crash occurring on certain LSCP scripts (Bug 39)
223        - another thread safety fix for lscp "load engine" and "set
224          channel audio output device"
225        - fixed a crash which occurs when reassigning the same engine
226          on a sampler channel with connected MIDI device
227        - fixed a crash which occurs when changing the number of ports of a MIDI
228          device connected to a sampler channel to number less then or equal
229          to the index of the port to which the sampler channel is connected.
230        - The previous bindings were not been disconnected when altering
231          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
232          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
233        - The active stream/voice count statistic was incorrect.
234        - notification events were not been sent for some sampler
235          channel changes
236        - added default min and max values to restrict the number of allowed
237          audio output channels and MIDI input ports
238        - the connection to the PCM interface is now closed when destroying
239          an audio output device
240        - files with slash in their path or filename could not be loaded
241    
242      * test cases:
243        - updated and fixed (haven't been touched in a while)
244    
245    Version 0.4.0 (24 November 2006)
246    
247      * packaging changes:
248        - changed deprecated copyright attribute to license; added ldconfig
249          to post-(un)install steps; added devel package for liblinuxsampler;
250          to linuxsampler.spec (RPM)
251      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
252        applications to link against liblinuxsampler        applications to link against liblinuxsampler
253      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 10  Version CVS HEAD (?) Line 257  Version CVS HEAD (?)
257        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
258        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
259        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
260        - do not automatically pick optimized gcc flags if the user already
261          provided some on his own (as CXXFLAGS)
262        - added compile time option to disable processing of All-Notes-Off MIDI
263          messages
264        - added compile time options to allow disabling the various audio and
265          MIDI drivers
266        - fixed automatic GCC CPU switch detection on PPC
267          (patch by Ebrahim Mayat)
268    
269    * Gigasampler format engine:    * Gigasampler format engine:
270        - extensive synthesis optimization
271          (reimplementation of EGs and LFO(s), removed synthesis parameter
272          prerendering and the synthesis parameter matrix in general, splitting
273          each audio fragment into subfragments now where each subfragment uses
274          constant pitch and filter coefficients. The volume coefficient is
275          linearly interpolated inside a subfragment, unless
276          --disable-interpolate-volume is set.)
277      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
278        - improved filter cutoff calculation by adding support for the
279          following gig parameters: Cutoff freq (used when no cutoff
280          controller is defined), Control invert, Minimum cutoff, Velocity
281          curve and Velocity range. The keyboard tracking now scales
282          cutoff frequency instead of resonance.
283        - added support for gig parameter Resonance.
284        - fixed bug in sysex handling (patch by Juan Linietsky)
285        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
286          which can be overridden with --enable-global-attenuation
287        - EG fixes: made the length of "attack hold" stage more
288          accurate. Release stage can now start before attack stage
289          ends. Cancel release didn't work when sustain was zero. Attack
290          time now has a minimal value to prevent clicks.
291        - fixed pitch changes larger than one octave
292        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
293        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
294          all modes can be altered via standard GM messages, that is CC5 for
295          altering portamento time, CC65 for enabling / disabling portamento
296          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
297        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
298          parameter) and crossfade
299        - added support for the "attenuation controller threshold" gig
300          parameter
301        - added smoothing of volume changes caused by control change
302          messages
303        - sample loop parameters are now taken from the DimensionRegion
304          instead of the wave chunk
305        - fixed keyswitching for v3 gigs with a number of keyswitch splits
306          not equal to a power of two
307        - reimplementation of the filter algorithm. The new filter is more
308          accurate and supports all gig filter types, including bandreject
309          and lowpass turbo.
310        - real support for 24 bit samples - samples are not truncated to
311          16 bits anymore
312        - support for aftertouch (channel pressure, not polyphonic
313          aftertouch)
314        - LFO1 behaviour fixed (dampening from max volume instead of
315          amplifying from 0)
316    
317    * LSCP server:    * LSCP server:
318      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
319        - fixed the notification messages delay due to lack of
320          network activity (fixes bug #26)
321        - fixed parser bug which occured on space(s) within device parameters
322          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
323    
324      * audio driver:
325        - added aRts audio output driver (by no means RT safe)
326    
327      * MIDI driver:
328        - fixed legacy sysex code which caused dispatching of MIDI SysEx
329          messages several times instead of once
330        - API extension for MIDI drivers which already supply exact time stamps
331          for events (i.e. for offline rendering based MIDI drivers)
332        - added checks for bad MIDI data
333    
334      * linuxsampler application:
335        - show available sampler engine types on startup
336    
337    * general changes:    * general changes:
338      - 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 25  Version CVS HEAD (?) Line 342  Version CVS HEAD (?)
342        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
343        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
344        processing of muted channels.        processing of muted channels.
345        - support for sostenuto pedal
346        - support for monitoring the total number of active voices
347          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
348          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
349        - fixed some memory management errors
350        - fixed some concurrency problems that could lead to crashes when
351          LSCP commands were executed
352        - fixed crash when instrument loading failed previously on the same
353          sampler channel (fixes bug #36)
354    
355  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
356    

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