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revision 835 by persson, Mon Feb 6 18:07:17 2006 UTC revision 1601 by schoenebeck, Sat Dec 29 20:27:53 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)
8      * audio driver:
9        - removed the nonsense audio channel constraint (which was hard coded to
10          max. 100 audio channels) for most audio drivers
12    Version 0.5.1 (6 December 2007)
14      * packaging changes:
15        - added autoconf checks for pthread library
16        - added autoconf check for pthread bug found on certain NPTL-enabled
17          glibc versions (see Gentoo bug report #194076)
18        - added autoconf checks for MS Windows
20      * general changes:
21        - bugfix: the thread used by an editor plugin didn't die when the
22          editor closed
23        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
24          out all the space. operator--() did not apply size_mask after
25          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
26          order to avoid problems with the _NonVolatileReader functions.
27        - bugfix: Stream.h: added a missing divide by BytesPerSample in
28          GetWriteSpace(). Since this function is currently only used in
29          the stream's qsort() compare function, it didn't trigger any
30          bugs.
31        - Resampler.h, Synthesizer.h: cubic interpolation now works in
32          24bit mode too. Faster method to read 24bit words on little
33          endian machines (x86): replaced 3 byte reads + shifts with a 1
34          unaligned 32bit read and shift
35        - experimental support for MS Windows (MIDI input via MME, AUDIO
36          output via ASIO)
37        - made handling of SIGINT signal (Ctrl-C) a bit more robust
38        - support for monitoring the total number of active disk streams
39          (new LSCP commands: GET TOTAL_STREAM_COUNT,
42      * AUDIO driver:
43        - added Windows ASIO low latency audio driver
45      * MIDI driver:
46        - added MME Windows MIDI driver
48      * LSCP server:
49        - added support for Windows style path / filenames, however with
50          forward slash path separators instead of backslash
51          (i.e. "C:/foo/bar.gig")
52        - allow naughty liblscp to send non-string device parameters within
53          apostrophes as well
54        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
55          "LIST FILE INSTRUMENTS <file>" and
56          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
57          about an arbitrary instrument file on the system where the sampler is
58          running on
60    Version 0.5.0 (15 October 2007)
62    * packaging changes:    * packaging changes:
63        - config.h is not going to be installed along with liblinuxsampler's
64          API header files anymore
65        - only the API relevant header (and source) files will be exported to
66          the Doxygen API documentation (explicitly listed in Doxyfile.in)
67        - added completely new XCode project files for Mac OSX which is now
68          capable to execute our autoconf environment, thus no need anymore
69          to maintain the compile time configuration file (osx/version.h) for
70          OSX manually (patch by Toshi Nagata)
71        - fixed buggy boolean --enable-foo / --disable-foo configure script
72          parameters
73        - global.h now only covers global definitions that are needed for the
74          C++ API header files, all implementation internal global definitions
75          are now in global_private.h
76        - atomic.h is not exposed to the C++ API anymore
77        - no need to include config.h anymore for using LS's API header files
78        - fixed warnings in API doc generation
80      * general changes:
81        - replaced the old, confusing MIDI program change mechanism by a
82          flexible MIDI instrument mapper which allows to map arbitrary
83          (MIDI bank, MIDI program) pairs with arbitrary
84          (engine type, instrument file, file index) triplets which will be
85          loaded on the respective channel when such MIDI program change
86          messages arrive, beside that, each entry allows to define a life-time
87          strategy for the instrument, so the user can define whether the
88          instrument should i.e. be permanently loaded (to be able to switch
89          quickly among sounds) or i.e. loaded just on demand when the
90          respective program change arrives (to safe RAM space), as well as a
91          global volume factor for each entry, so the user can adjust the volume
92          dynamic of his mapped instrument collection without having to modify
93          the instrument files, also one can manage arbitrary amount of such
94          MIDI instrument maps and assign each sampler channel individually
95          a certain map, so that i.e. separation of normal instruments and
96          drumkits is possible
97        - new notification events for tracking changes to audio/MIDI devices,
98          MIDI instrument maps, MIDI instruments, FX sends, global volume.
99        - sampler was limited to load max. 200 instruments in the background
100          due to a constant size RingBuffer FIFO which is now replaced by a
101          dynamic (unlimited) size std::list FIFO
102        - added FX sends, these allow to route audio signals to arbitrary audio
103          output channels for being processed by external effect processors
104          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
105          controllers
106        - global (sampler wide) volume can now be controlled at runtime
107        - Implemented new, improved notification system
108        - fixed compilation errors regarding OSX
109          (patch by Toshi Nagata)
110        - implemented instruments database
111        - added support for escape sequences to the instruments database
112        - added highly experimental support for on-the-fly instrument editing
113          within the sampler's process (by using instrument editor plugins),
114          you'll notice the new "Registered instrument editors:" message on
115          startup, added a new LSCP command:
116          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
117          to spawn a matching instrument editor for the instrument on the
118          given sampler channel, the plugin path can be overridden at compile
119          time with ./configure --enable-plugin-dir=/some/dir
120        - added experimental code for synchronizing instrument editors hosted
121          in the sampler's process to safely edit instruments while playing
122          without a crash (hopefully) by either suspending single regions
123          wherever possible or if unavoidable whole engine(s)
124        - fixed several issues in fundamental "Thread" class: set scheduling
125          policy and priority on thread level, set a minimum stack size for
126          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
127          threads simply inherited properties of starting thread instead of
128          setting their own policy and priority
129        - minor fix in our automatic stack trace mechanism on crashes, the
130          main process did not wait for the stack trace process to finish
131          its output
132        - fixed some minor memory leaks
133        - reenabled assembly features support, at the moment only for
134          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
135        - minor assembly fix in x86 features detection (don't use the PIC
136          register, to avoid relocations in the text segment at runtime)
137        - POSIX callback functions of Thread.h are hidden
139      * MIDI driver:
140        - dispatch bank select (MSB and LSB) messages
142      * audio driver:
143        - the ALSA audio output driver parameters now reflect the correct
144          parameter value ranges for the respective selected sound card
145          (patch by Till Wimmer, a bit fixed and extended)
147      * Gigasampler format engine:
148        - if a filter is used and EG2 finishes before EG1, let the voice
149          die when EG2 has finished (this fixes a problem with clicks and
150          voice starvation for some gigs)
151        - playback is no longer disabled during instrument loading
152        - all notes playing on a channel that changes its instrument keep
153          playing with the old instrument until they get a note off
154          command
155        - EG fix: a release value of zero could cause noises or crash
156        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
157        - EG fine tuning: when attack is zero the EG starts at a level
158          above max sustain level, which means that there is a decay phase
159          even if sustain is 100%
160        - more EG fixes: the level could sometimes go below zero and cause
161          noises or crashes
162        - minor fix of EGDecay (patch by Toshi Nagata)
163        - fixed compiler error when --enable-override-filter-type was
164          supplied to the configure script (fixes #46)
165        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
166          instead of a fix value
167        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
168          127 (solo mode) only kill voices if the respective mode really
169          changed
171      * LSCP server:
172        - fixed compile time error for old Bison versions
173          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
174        - parser now supports extended ASCII character set
175          (up to ASCII code 255, i.e. includes now umlauts and accents)
176        - filename arguments in LSCP commands now allow to use escape
177          sequences, that is directly literal as one of: \', \", \\, \n, \r,
178          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
179          code value like \xf2) (fixes bug #24)
180        - the following LSCP commands now also support escape sequences for at
181          least one of their text-based parameters (i.e. name, description):
188        - returns verbose syntax errors (line and column where syntax error
189          occured, the unexpected character and the actually expected, possible
190          character(s), the latter only if less than 5 possibilities)
191        - made sure that LSCP syntax is not affected by gigedit locale
192          settings
193        - bugfix regarding strings parameter lists: all comma separated lists
194          of strings were treated as being one string containing commas
195          (fixes #57)
197      * Bug fixes:
198        - fixed crash occurring on certain LSCP scripts (Bug 39)
199        - another thread safety fix for lscp "load engine" and "set
200          channel audio output device"
201        - fixed a crash which occurs when reassigning the same engine
202          on a sampler channel with connected MIDI device
203        - fixed a crash which occurs when changing the number of ports of a MIDI
204          device connected to a sampler channel to number less then or equal
205          to the index of the port to which the sampler channel is connected.
206        - The previous bindings were not been disconnected when altering
207          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
208          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
209        - The active stream/voice count statistic was incorrect.
210        - notification events were not been sent for some sampler
211          channel changes
212        - added default min and max values to restrict the number of allowed
213          audio output channels and MIDI input ports
214        - the connection to the PCM interface is now closed when destroying
215          an audio output device
216        - files with slash in their path or filename could not be loaded
218      * test cases:
219        - updated and fixed (haven't been touched in a while)
221    Version 0.4.0 (24 November 2006)
223      * packaging changes:
224        - changed deprecated copyright attribute to license; added ldconfig
225          to post-(un)install steps; added devel package for liblinuxsampler;
226          to linuxsampler.spec (RPM)
227      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
228        applications to link against liblinuxsampler        applications to link against liblinuxsampler
229      - 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 235  Version CVS HEAD (?)
235        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
236      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
237        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
238        - added compile time option to disable processing of All-Notes-Off MIDI
239          messages
240        - added compile time options to allow disabling the various audio and
241          MIDI drivers
242        - fixed automatic GCC CPU switch detection on PPC
243          (patch by Ebrahim Mayat)
245    * Gigasampler format engine:    * Gigasampler format engine:
246      - extensive synthesis optimization      - extensive synthesis optimization
# Line 27  Version CVS HEAD (?) Line 256  Version CVS HEAD (?)
256        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
257        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
258        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
259      - 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.  
260      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
261      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
262        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 50  Version CVS HEAD (?) Line 276  Version CVS HEAD (?)
276        parameter        parameter
277      - added smoothing of volume changes caused by control change      - added smoothing of volume changes caused by control change
278        messages        messages
279        - sample loop parameters are now taken from the DimensionRegion
280          instead of the wave chunk
281        - fixed keyswitching for v3 gigs with a number of keyswitch splits
282          not equal to a power of two
283        - reimplementation of the filter algorithm. The new filter is more
284          accurate and supports all gig filter types, including bandreject
285          and lowpass turbo.
286        - real support for 24 bit samples - samples are not truncated to
287          16 bits anymore
288        - support for aftertouch (channel pressure, not polyphonic
289          aftertouch)
290        - LFO1 behaviour fixed (dampening from max volume instead of
291          amplifying from 0)
293    * LSCP server:    * LSCP server:
294      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 58  Version CVS HEAD (?) Line 297  Version CVS HEAD (?)
297      - fixed parser bug which occured on space(s) within device parameters      - fixed parser bug which occured on space(s) within device parameters
300      * audio driver:
301        - added aRts audio output driver (by no means RT safe)
303    * MIDI driver:    * MIDI driver:
304      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
305        messages several times instead of once        messages several times instead of once
306        - API extension for MIDI drivers which already supply exact time stamps
307          for events (i.e. for offline rendering based MIDI drivers)
308        - added checks for bad MIDI data
310      * linuxsampler application:
311        - show available sampler engine types on startup
313    * general changes:    * general changes:
314      - 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 75  Version CVS HEAD (?) Line 323  Version CVS HEAD (?)
325      - fixed some memory management errors      - fixed some memory management errors
326        - fixed some concurrency problems that could lead to crashes when
327          LSCP commands were executed
328        - fixed crash when instrument loading failed previously on the same
329          sampler channel (fixes bug #36)
331  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)

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