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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1485 by senoner, Thu Nov 15 23:35:45 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
3    * packaging changes:    * packaging changes:
4        - added autoconf checks for pthread library
5        - added autoconf check for pthread bug found on certain NPTL-enabled
6          glibc versions (see Gentoo bug report #194076)
8      * general changes:
9        - bugfix: the thread used by an editor plugin didn't die when the
10          editor closed
11        - bugfix: Ringbuffer.h:
12          fill_write_space_with_null() did not zero out all the space
13          operator--() did not apply size_mask after decrementing the read_ptr
14          DEFAULT_WRAP_ELEMENTS set to 0 in order to avoid problems with
15            the _NonVolatileReader functions.
16         - bugfix: Stream.h: added a missing divide by BytesPerSample in GetWriteSpace()
17           since this function is currently only used in the stream's
18           qsort() compare function, it didn't trigger any bugs
19         Resampler.h, Synthesizer.h:
20           cubic interpolation now works in 24bit mode too
21           faster method to read 24bit words on little endian machines (x86):
22           replaced 3 byte reads + shifts with a 1 unaligned 32bit read and shift
24      * MIDI driver:
25        - added MME Windows MIDI driver      
27      * LSCP server:
28        - added support for Windows style path / filenames, however with
29          forward slash path separators instead of backslash
30          (i.e. "C:/foo/bar.gig")
32    Version 0.5.0 (15 October 2007)
34      * packaging changes:
35        - config.h is not going to be installed along with liblinuxsampler's
36          API header files anymore
37        - only the API relevant header (and source) files will be exported to
38          the Doxygen API documentation (explicitly listed in Doxyfile.in)
39        - added completely new XCode project files for Mac OSX which is now
40          capable to execute our autoconf environment, thus no need anymore
41          to maintain the compile time configuration file (osx/version.h) for
42          OSX manually (patch by Toshi Nagata)
43        - fixed buggy boolean --enable-foo / --disable-foo configure script
44          parameters
45        - global.h now only covers global definitions that are needed for the
46          C++ API header files, all implementation internal global definitions
47          are now in global_private.h
48        - atomic.h is not exposed to the C++ API anymore
49        - no need to include config.h anymore for using LS's API header files
50        - fixed warnings in API doc generation
52      * general changes:
53        - replaced the old, confusing MIDI program change mechanism by a
54          flexible MIDI instrument mapper which allows to map arbitrary
55          (MIDI bank, MIDI program) pairs with arbitrary
56          (engine type, instrument file, file index) triplets which will be
57          loaded on the respective channel when such MIDI program change
58          messages arrive, beside that, each entry allows to define a life-time
59          strategy for the instrument, so the user can define whether the
60          instrument should i.e. be permanently loaded (to be able to switch
61          quickly among sounds) or i.e. loaded just on demand when the
62          respective program change arrives (to safe RAM space), as well as a
63          global volume factor for each entry, so the user can adjust the volume
64          dynamic of his mapped instrument collection without having to modify
65          the instrument files, also one can manage arbitrary amount of such
66          MIDI instrument maps and assign each sampler channel individually
67          a certain map, so that i.e. separation of normal instruments and
68          drumkits is possible
69        - new notification events for tracking changes to audio/MIDI devices,
70          MIDI instrument maps, MIDI instruments, FX sends, global volume.
71        - sampler was limited to load max. 200 instruments in the background
72          due to a constant size RingBuffer FIFO which is now replaced by a
73          dynamic (unlimited) size std::list FIFO
74        - added FX sends, these allow to route audio signals to arbitrary audio
75          output channels for being processed by external effect processors
76          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
77          controllers
78        - global (sampler wide) volume can now be controlled at runtime
79        - Implemented new, improved notification system
80        - fixed compilation errors regarding OSX
81          (patch by Toshi Nagata)
82        - implemented instruments database
83        - added support for escape sequences to the instruments database
84        - added highly experimental support for on-the-fly instrument editing
85          within the sampler's process (by using instrument editor plugins),
86          you'll notice the new "Registered instrument editors:" message on
87          startup, added a new LSCP command:
88          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
89          to spawn a matching instrument editor for the instrument on the
90          given sampler channel, the plugin path can be overridden at compile
91          time with ./configure --enable-plugin-dir=/some/dir
92        - added experimental code for synchronizing instrument editors hosted
93          in the sampler's process to safely edit instruments while playing
94          without a crash (hopefully) by either suspending single regions
95          wherever possible or if unavoidable whole engine(s)
96        - fixed several issues in fundamental "Thread" class: set scheduling
97          policy and priority on thread level, set a minimum stack size for
98          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
99          threads simply inherited properties of starting thread instead of
100          setting their own policy and priority
101        - minor fix in our automatic stack trace mechanism on crashes, the
102          main process did not wait for the stack trace process to finish
103          its output
104        - fixed some minor memory leaks
105        - reenabled assembly features support, at the moment only for
106          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
107        - minor assembly fix in x86 features detection (don't use the PIC
108          register, to avoid relocations in the text segment at runtime)
109        - POSIX callback functions of Thread.h are hidden
111      * MIDI driver:
112        - dispatch bank select (MSB and LSB) messages
114      * audio driver:
115        - the ALSA audio output driver parameters now reflect the correct
116          parameter value ranges for the respective selected sound card
117          (patch by Till Wimmer, a bit fixed and extended)
119      * Gigasampler format engine:
120        - if a filter is used and EG2 finishes before EG1, let the voice
121          die when EG2 has finished (this fixes a problem with clicks and
122          voice starvation for some gigs)
123        - playback is no longer disabled during instrument loading
124        - all notes playing on a channel that changes its instrument keep
125          playing with the old instrument until they get a note off
126          command
127        - EG fix: a release value of zero could cause noises or crash
128        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
129        - EG fine tuning: when attack is zero the EG starts at a level
130          above max sustain level, which means that there is a decay phase
131          even if sustain is 100%
132        - more EG fixes: the level could sometimes go below zero and cause
133          noises or crashes
134        - minor fix of EGDecay (patch by Toshi Nagata)
135        - fixed compiler error when --enable-override-filter-type was
136          supplied to the configure script (fixes #46)
137        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
138          instead of a fix value
139        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
140          127 (solo mode) only kill voices if the respective mode really
141          changed
143      * LSCP server:
144        - fixed compile time error for old Bison versions
145          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
146        - parser now supports extended ASCII character set
147          (up to ASCII code 255, i.e. includes now umlauts and accents)
148        - filename arguments in LSCP commands now allow to use escape
149          sequences, that is directly literal as one of: \', \", \\, \n, \r,
150          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
151          code value like \xf2) (fixes bug #24)
152        - the following LSCP commands now also support escape sequences for at
153          least one of their text-based parameters (i.e. name, description):
160        - returns verbose syntax errors (line and column where syntax error
161          occured, the unexpected character and the actually expected, possible
162          character(s), the latter only if less than 5 possibilities)
163        - made sure that LSCP syntax is not affected by gigedit locale
164          settings
165        - bugfix regarding strings parameter lists: all comma separated lists
166          of strings were treated as being one string containing commas
167          (fixes #57)
169      * Bug fixes:
170        - fixed crash occurring on certain LSCP scripts (Bug 39)
171        - another thread safety fix for lscp "load engine" and "set
172          channel audio output device"
173        - fixed a crash which occurs when reassigning the same engine
174          on a sampler channel with connected MIDI device
175        - fixed a crash which occurs when changing the number of ports of a MIDI
176          device connected to a sampler channel to number less then or equal
177          to the index of the port to which the sampler channel is connected.
178        - The previous bindings were not been disconnected when altering
179          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
180          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
181        - The active stream/voice count statistic was incorrect.
182        - notification events were not been sent for some sampler
183          channel changes
184        - added default min and max values to restrict the number of allowed
185          audio output channels and MIDI input ports
186        - the connection to the PCM interface is now closed when destroying
187          an audio output device
188        - files with slash in their path or filename could not be loaded
190      * test cases:
191        - updated and fixed (haven't been touched in a while)
193    Version 0.4.0 (24 November 2006)
195      * packaging changes:
196        - changed deprecated copyright attribute to license; added ldconfig
197          to post-(un)install steps; added devel package for liblinuxsampler;
198          to linuxsampler.spec (RPM)
199      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
200        applications to link against liblinuxsampler        applications to link against liblinuxsampler
201      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
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205        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
206        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
207        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
208        - do not automatically pick optimized gcc flags if the user already
209          provided some on his own (as CXXFLAGS)
210        - added compile time option to disable processing of All-Notes-Off MIDI
211          messages
212        - added compile time options to allow disabling the various audio and
213          MIDI drivers
214        - fixed automatic GCC CPU switch detection on PPC
215          (patch by Ebrahim Mayat)
217    * Gigasampler format engine:    * Gigasampler format engine:
218      - extensive synthesis optimization      - extensive synthesis optimization
219        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
220        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
221        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
222        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
223        coefficients)        linearly interpolated inside a subfragment, unless
224          --disable-interpolate-volume is set.)
225      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
226      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
227        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
228        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
229        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
230        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
231        - added support for gig parameter Resonance.
232      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
233        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
234          which can be overridden with --enable-global-attenuation
235        - EG fixes: made the length of "attack hold" stage more
236          accurate. Release stage can now start before attack stage
237          ends. Cancel release didn't work when sustain was zero. Attack
238          time now has a minimal value to prevent clicks.
239        - fixed pitch changes larger than one octave
240        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
241        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
242          all modes can be altered via standard GM messages, that is CC5 for
243          altering portamento time, CC65 for enabling / disabling portamento
244          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
245        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
246          parameter) and crossfade
247        - added support for the "attenuation controller threshold" gig
248          parameter
249        - added smoothing of volume changes caused by control change
250          messages
251        - sample loop parameters are now taken from the DimensionRegion
252          instead of the wave chunk
253        - fixed keyswitching for v3 gigs with a number of keyswitch splits
254          not equal to a power of two
255        - reimplementation of the filter algorithm. The new filter is more
256          accurate and supports all gig filter types, including bandreject
257          and lowpass turbo.
258        - real support for 24 bit samples - samples are not truncated to
259          16 bits anymore
260        - support for aftertouch (channel pressure, not polyphonic
261          aftertouch)
262        - LFO1 behaviour fixed (dampening from max volume instead of
263          amplifying from 0)
265    * LSCP server:    * LSCP server:
266      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
267        - fixed the notification messages delay due to lack of
268          network activity (fixes bug #26)
269        - fixed parser bug which occured on space(s) within device parameters
270          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
272      * audio driver:
273        - added aRts audio output driver (by no means RT safe)
275    * MIDI driver:    * MIDI driver:
276      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
277        messages several times instead of once        messages several times instead of once
278        - API extension for MIDI drivers which already supply exact time stamps
279          for events (i.e. for offline rendering based MIDI drivers)
280        - added checks for bad MIDI data
282      * linuxsampler application:
283        - show available sampler engine types on startup
285    * general changes:    * general changes:
286      - 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 290  Version CVS HEAD (?)
290        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
291        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
292        processing of muted channels.        processing of muted channels.
293        - support for sostenuto pedal
294        - support for monitoring the total number of active voices
297        - fixed some memory management errors
298        - fixed some concurrency problems that could lead to crashes when
299          LSCP commands were executed
300        - fixed crash when instrument loading failed previously on the same
301          sampler channel (fixes bug #36)
303  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)

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