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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1602 by schoenebeck, Sat Dec 29 22:02:29 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
3      * general changes:
4        - bugfix: on some POSIX systems instrument editor plugins refused to
5          load as we used a non-portable Linux specific struct field
6          (fixes bug #70, patch by Ronald Baljeu)
7        - fixed endless loop which occured when loading an instrument editor
8          plugin DLL on Windows systems failed
10      * audio driver:
11        - removed the nonsense audio channel constraint (which was hard coded to
12          max. 100 audio channels) for most audio drivers
14    Version 0.5.1 (6 December 2007)
16      * packaging changes:
17        - added autoconf checks for pthread library
18        - added autoconf check for pthread bug found on certain NPTL-enabled
19          glibc versions (see Gentoo bug report #194076)
20        - added autoconf checks for MS Windows
22      * general changes:
23        - bugfix: the thread used by an editor plugin didn't die when the
24          editor closed
25        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
26          out all the space. operator--() did not apply size_mask after
27          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
28          order to avoid problems with the _NonVolatileReader functions.
29        - bugfix: Stream.h: added a missing divide by BytesPerSample in
30          GetWriteSpace(). Since this function is currently only used in
31          the stream's qsort() compare function, it didn't trigger any
32          bugs.
33        - Resampler.h, Synthesizer.h: cubic interpolation now works in
34          24bit mode too. Faster method to read 24bit words on little
35          endian machines (x86): replaced 3 byte reads + shifts with a 1
36          unaligned 32bit read and shift
37        - experimental support for MS Windows (MIDI input via MME, AUDIO
38          output via ASIO)
39        - made handling of SIGINT signal (Ctrl-C) a bit more robust
40        - support for monitoring the total number of active disk streams
41          (new LSCP commands: GET TOTAL_STREAM_COUNT,
44      * AUDIO driver:
45        - added Windows ASIO low latency audio driver
47      * MIDI driver:
48        - added MME Windows MIDI driver
50      * LSCP server:
51        - added support for Windows style path / filenames, however with
52          forward slash path separators instead of backslash
53          (i.e. "C:/foo/bar.gig")
54        - allow naughty liblscp to send non-string device parameters within
55          apostrophes as well
56        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
57          "LIST FILE INSTRUMENTS <file>" and
58          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
59          about an arbitrary instrument file on the system where the sampler is
60          running on
62    Version 0.5.0 (15 October 2007)
64      * packaging changes:
65        - config.h is not going to be installed along with liblinuxsampler's
66          API header files anymore
67        - only the API relevant header (and source) files will be exported to
68          the Doxygen API documentation (explicitly listed in Doxyfile.in)
69        - added completely new XCode project files for Mac OSX which is now
70          capable to execute our autoconf environment, thus no need anymore
71          to maintain the compile time configuration file (osx/version.h) for
72          OSX manually (patch by Toshi Nagata)
73        - fixed buggy boolean --enable-foo / --disable-foo configure script
74          parameters
75        - global.h now only covers global definitions that are needed for the
76          C++ API header files, all implementation internal global definitions
77          are now in global_private.h
78        - atomic.h is not exposed to the C++ API anymore
79        - no need to include config.h anymore for using LS's API header files
80        - fixed warnings in API doc generation
82      * general changes:
83        - replaced the old, confusing MIDI program change mechanism by a
84          flexible MIDI instrument mapper which allows to map arbitrary
85          (MIDI bank, MIDI program) pairs with arbitrary
86          (engine type, instrument file, file index) triplets which will be
87          loaded on the respective channel when such MIDI program change
88          messages arrive, beside that, each entry allows to define a life-time
89          strategy for the instrument, so the user can define whether the
90          instrument should i.e. be permanently loaded (to be able to switch
91          quickly among sounds) or i.e. loaded just on demand when the
92          respective program change arrives (to safe RAM space), as well as a
93          global volume factor for each entry, so the user can adjust the volume
94          dynamic of his mapped instrument collection without having to modify
95          the instrument files, also one can manage arbitrary amount of such
96          MIDI instrument maps and assign each sampler channel individually
97          a certain map, so that i.e. separation of normal instruments and
98          drumkits is possible
99        - new notification events for tracking changes to audio/MIDI devices,
100          MIDI instrument maps, MIDI instruments, FX sends, global volume.
101        - sampler was limited to load max. 200 instruments in the background
102          due to a constant size RingBuffer FIFO which is now replaced by a
103          dynamic (unlimited) size std::list FIFO
104        - added FX sends, these allow to route audio signals to arbitrary audio
105          output channels for being processed by external effect processors
106          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
107          controllers
108        - global (sampler wide) volume can now be controlled at runtime
109        - Implemented new, improved notification system
110        - fixed compilation errors regarding OSX
111          (patch by Toshi Nagata)
112        - implemented instruments database
113        - added support for escape sequences to the instruments database
114        - added highly experimental support for on-the-fly instrument editing
115          within the sampler's process (by using instrument editor plugins),
116          you'll notice the new "Registered instrument editors:" message on
117          startup, added a new LSCP command:
118          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
119          to spawn a matching instrument editor for the instrument on the
120          given sampler channel, the plugin path can be overridden at compile
121          time with ./configure --enable-plugin-dir=/some/dir
122        - added experimental code for synchronizing instrument editors hosted
123          in the sampler's process to safely edit instruments while playing
124          without a crash (hopefully) by either suspending single regions
125          wherever possible or if unavoidable whole engine(s)
126        - fixed several issues in fundamental "Thread" class: set scheduling
127          policy and priority on thread level, set a minimum stack size for
128          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
129          threads simply inherited properties of starting thread instead of
130          setting their own policy and priority
131        - minor fix in our automatic stack trace mechanism on crashes, the
132          main process did not wait for the stack trace process to finish
133          its output
134        - fixed some minor memory leaks
135        - reenabled assembly features support, at the moment only for
136          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
137        - minor assembly fix in x86 features detection (don't use the PIC
138          register, to avoid relocations in the text segment at runtime)
139        - POSIX callback functions of Thread.h are hidden
141      * MIDI driver:
142        - dispatch bank select (MSB and LSB) messages
144      * audio driver:
145        - the ALSA audio output driver parameters now reflect the correct
146          parameter value ranges for the respective selected sound card
147          (patch by Till Wimmer, a bit fixed and extended)
149      * Gigasampler format engine:
150        - if a filter is used and EG2 finishes before EG1, let the voice
151          die when EG2 has finished (this fixes a problem with clicks and
152          voice starvation for some gigs)
153        - playback is no longer disabled during instrument loading
154        - all notes playing on a channel that changes its instrument keep
155          playing with the old instrument until they get a note off
156          command
157        - EG fix: a release value of zero could cause noises or crash
158        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
159        - EG fine tuning: when attack is zero the EG starts at a level
160          above max sustain level, which means that there is a decay phase
161          even if sustain is 100%
162        - more EG fixes: the level could sometimes go below zero and cause
163          noises or crashes
164        - minor fix of EGDecay (patch by Toshi Nagata)
165        - fixed compiler error when --enable-override-filter-type was
166          supplied to the configure script (fixes #46)
167        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
168          instead of a fix value
169        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
170          127 (solo mode) only kill voices if the respective mode really
171          changed
173      * LSCP server:
174        - fixed compile time error for old Bison versions
175          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
176        - parser now supports extended ASCII character set
177          (up to ASCII code 255, i.e. includes now umlauts and accents)
178        - filename arguments in LSCP commands now allow to use escape
179          sequences, that is directly literal as one of: \', \", \\, \n, \r,
180          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
181          code value like \xf2) (fixes bug #24)
182        - the following LSCP commands now also support escape sequences for at
183          least one of their text-based parameters (i.e. name, description):
190        - returns verbose syntax errors (line and column where syntax error
191          occured, the unexpected character and the actually expected, possible
192          character(s), the latter only if less than 5 possibilities)
193        - made sure that LSCP syntax is not affected by gigedit locale
194          settings
195        - bugfix regarding strings parameter lists: all comma separated lists
196          of strings were treated as being one string containing commas
197          (fixes #57)
199      * Bug fixes:
200        - fixed crash occurring on certain LSCP scripts (Bug 39)
201        - another thread safety fix for lscp "load engine" and "set
202          channel audio output device"
203        - fixed a crash which occurs when reassigning the same engine
204          on a sampler channel with connected MIDI device
205        - fixed a crash which occurs when changing the number of ports of a MIDI
206          device connected to a sampler channel to number less then or equal
207          to the index of the port to which the sampler channel is connected.
208        - The previous bindings were not been disconnected when altering
209          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
210          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
211        - The active stream/voice count statistic was incorrect.
212        - notification events were not been sent for some sampler
213          channel changes
214        - added default min and max values to restrict the number of allowed
215          audio output channels and MIDI input ports
216        - the connection to the PCM interface is now closed when destroying
217          an audio output device
218        - files with slash in their path or filename could not be loaded
220      * test cases:
221        - updated and fixed (haven't been touched in a while)
223    Version 0.4.0 (24 November 2006)
225    * packaging changes:    * packaging changes:
226        - changed deprecated copyright attribute to license; added ldconfig
227          to post-(un)install steps; added devel package for liblinuxsampler;
228          to linuxsampler.spec (RPM)
229      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
230        applications to link against liblinuxsampler        applications to link against liblinuxsampler
231      - 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 235  Version CVS HEAD (?)
235        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
236        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
237        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
238        - do not automatically pick optimized gcc flags if the user already
239          provided some on his own (as CXXFLAGS)
240        - added compile time option to disable processing of All-Notes-Off MIDI
241          messages
242        - added compile time options to allow disabling the various audio and
243          MIDI drivers
244        - fixed automatic GCC CPU switch detection on PPC
245          (patch by Ebrahim Mayat)
247    * Gigasampler format engine:    * Gigasampler format engine:
248      - extensive synthesis optimization      - extensive synthesis optimization
249        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
250        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
251        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
252        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
253        coefficients)        linearly interpolated inside a subfragment, unless
254          --disable-interpolate-volume is set.)
255      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
256      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
257        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
258        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
259        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
260        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
261        - added support for gig parameter Resonance.
262      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
263        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
264          which can be overridden with --enable-global-attenuation
265        - EG fixes: made the length of "attack hold" stage more
266          accurate. Release stage can now start before attack stage
267          ends. Cancel release didn't work when sustain was zero. Attack
268          time now has a minimal value to prevent clicks.
269        - fixed pitch changes larger than one octave
270        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
271        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
272          all modes can be altered via standard GM messages, that is CC5 for
273          altering portamento time, CC65 for enabling / disabling portamento
274          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
275        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
276          parameter) and crossfade
277        - added support for the "attenuation controller threshold" gig
278          parameter
279        - added smoothing of volume changes caused by control change
280          messages
281        - sample loop parameters are now taken from the DimensionRegion
282          instead of the wave chunk
283        - fixed keyswitching for v3 gigs with a number of keyswitch splits
284          not equal to a power of two
285        - reimplementation of the filter algorithm. The new filter is more
286          accurate and supports all gig filter types, including bandreject
287          and lowpass turbo.
288        - real support for 24 bit samples - samples are not truncated to
289          16 bits anymore
290        - support for aftertouch (channel pressure, not polyphonic
291          aftertouch)
292        - LFO1 behaviour fixed (dampening from max volume instead of
293          amplifying from 0)
295    * LSCP server:    * LSCP server:
296      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
297        - fixed the notification messages delay due to lack of
298          network activity (fixes bug #26)
299        - fixed parser bug which occured on space(s) within device parameters
300          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
302      * audio driver:
303        - added aRts audio output driver (by no means RT safe)
305    * MIDI driver:    * MIDI driver:
306      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
307        messages several times instead of once        messages several times instead of once
308        - API extension for MIDI drivers which already supply exact time stamps
309          for events (i.e. for offline rendering based MIDI drivers)
310        - added checks for bad MIDI data
312      * linuxsampler application:
313        - show available sampler engine types on startup
315    * general changes:    * general changes:
316      - 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 41  Version CVS HEAD (?) Line 320  Version CVS HEAD (?)
320        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
321        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
322        processing of muted channels.        processing of muted channels.
323        - support for sostenuto pedal
324        - support for monitoring the total number of active voices
327        - fixed some memory management errors
328        - fixed some concurrency problems that could lead to crashes when
329          LSCP commands were executed
330        - fixed crash when instrument loading failed previously on the same
331          sampler channel (fixes bug #36)
333  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)

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