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revision 900 by schoenebeck, Wed Jul 5 17:53:22 2006 UTC revision 1314 by schoenebeck, Fri Aug 31 10:29:13 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - config.h is not going to be installed along with liblinuxsampler's
5          API header files anymore
6        - only the API relevant header (and source) files will be exported to
7          the Doxygen API documentation (explicitly listed in Doxyfile.in)
8        - added completely new XCode project files for Mac OSX which is now
9          capable to execute our autoconf environment, thus no need anymore
10          to maintain the compile time configuration file (osx/version.h) for
11          OSX manually (patch by Toshi Nagata)
12    
13      * general changes:
14        - replaced the old, confusing MIDI program change mechanism by a
15          flexible MIDI instrument mapper which allows to map arbitrary
16          (MIDI bank, MIDI program) pairs with arbitrary
17          (engine type, instrument file, file index) triplets which will be
18          loaded on the respective channel when such MIDI program change
19          messages arrive, beside that, each entry allows to define a life-time
20          strategy for the instrument, so the user can define whether the
21          instrument should i.e. be permanently loaded (to be able to switch
22          quickly among sounds) or i.e. loaded just on demand when the
23          respective program change arrives (to safe RAM space), as well as a
24          global volume factor for each entry, so the user can adjust the volume
25          dynamic of his mapped instrument collection without having to modify
26          the instrument files, also one can manage arbitrary amount of such
27          MIDI instrument maps and assign each sampler channel individually
28          a certain map, so that i.e. separation of normal instruments and
29          drumkits is possible
30        - new notification events for tracking changes to audio/MIDI devices,
31          MIDI instrument maps, MIDI instruments, FX sends, global volume.
32        - sampler was limited to load max. 200 instruments in the background
33          due to a constant size RingBuffer FIFO which is now replaced by a
34          dynamic (unlimited) size std::list FIFO
35        - added FX sends, these allow to route audio signals to arbitrary audio
36          output channels for being processed by external effect processors
37          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
38          controllers
39        - global (sampler wide) volume can now be controlled at runtime
40        - Implemented new, improved notification system
41        - fixed compilation errors regarding OSX
42          (patch by Toshi Nagata)
43        - implemented instruments database
44        - added highly experimental support for on-the-fly instrument editing
45          within the sampler's process (by using instrument editor plugins),
46          you'll notice the new "Registered instrument editors:" message on
47          startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
48          to spawn a matching instrument editor for the instrument on the
49          given sampler channel, the plugin path can be overridden at compile
50          time with ./configure --enable-plugin-dir=/some/dir
51        - fixed several issues in fundamental "Thread" class: set scheduling
52          policy and priority on thread level, set a minimum stack size for
53          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
54          threads simply inherited properties of starting thread instead of
55          setting their own policy and priority
56        - minor fix in our automatic stack trace mechanism on crashes, the
57          main process did not wait for the stack trace process to finish
58          its output
59        - fixed some minor memory leaks
60        - reenabled assembly features support, at the moment only for
61          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
62        - minor assembly fix in x86 features detection (don't use the PIC
63          register, to avoid relocations in the text segment at runtime)
64    
65      * MIDI driver:
66        - dispatch bank select (MSB and LSB) messages
67    
68      * audio driver:
69        - the ALSA audio output driver parameters now reflect the correct
70          parameter value ranges for the respective selected sound card
71          (patch by Till Wimmer, a bit fixed and extended)
72    
73      * Gigasampler format engine:
74        - if a filter is used and EG2 finishes before EG1, let the voice
75          die when EG2 has finished (this fixes a problem with clicks and
76          voice starvation for some gigs)
77        - playback is no longer disabled during instrument loading
78        - all notes playing on a channel that changes its instrument keep
79          playing with the old instrument until they get a note off
80          command
81        - EG fix: a release value of zero could cause noises or crash
82        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
83        - EG fine tuning: when attack is zero the EG starts at a level
84          above max sustain level, which means that there is a decay phase
85          even if sustain is 100%
86        - more EG fixes: the level could sometimes go below zero and cause
87          noises or crashes
88        - minor fix of EGDecay (patch by Toshi Nagata)
89        - fixed compiler error when --enable-override-filter-type was
90          supplied to the configure script (fixes #46)
91    
92      * LSCP server:
93        - fixed compile time error for old Bison versions
94          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
95        - parser now supports extended ASCII character set
96          (up to ASCII code 255, i.e. includes now umlauts and accents)
97        - filename arguments in LSCP commands now allow to use escape
98          sequences, that is directly literal as one of: \', \", \\, \n, \r,
99          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
100          code value like \xf2) (fixes bug #24)
101        - returns verbose syntax errors (line and column where syntax error
102          occured, the unexpected character and the actually expected, possible
103          character(s), the latter only if less than 5 possibilities)
104    
105      * Bug fixes:
106        - fixed crash occurring on certain LSCP scripts (Bug 39)
107        - another thread safety fix for lscp "load engine" and "set
108          channel audio output device"
109        - fixed a crash which occurs when reassigning the same engine
110          on a sampler channel with connected MIDI device
111        - fixed a crash which occurs when changing the number of ports of a MIDI
112          device connected to a sampler channel to number less then or equal
113          to the index of the port to which the sampler channel is connected.
114        - The previous bindings were not been disconnected when altering
115          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
116          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
117        - The active stream/voice count statistic was incorrect.
118        - notification events were not been sent for some sampler
119          channel changes
120        - added default min and max values to restrict the number of allowed
121          audio output channels and MIDI input ports
122        - the connection to the PCM interface is now closed when destroying
123          an audio output device
124    
125      * test cases:
126        - updated and fixed (haven't been touched in a while)
127    
128    Version 0.4.0 (24 November 2006)
129    
130      * packaging changes:
131      - changed deprecated copyright attribute to license; added ldconfig      - changed deprecated copyright attribute to license; added ldconfig
132        to post-(un)install steps; added devel package for liblinuxsampler;        to post-(un)install steps; added devel package for liblinuxsampler;
133        to linuxsampler.spec (RPM)        to linuxsampler.spec (RPM)
# Line 19  Version CVS HEAD (?) Line 146  Version CVS HEAD (?)
146        messages        messages
147      - added compile time options to allow disabling the various audio and      - added compile time options to allow disabling the various audio and
148        MIDI drivers        MIDI drivers
149        - fixed automatic GCC CPU switch detection on PPC
150          (patch by Ebrahim Mayat)
151    
152    * Gigasampler format engine:    * Gigasampler format engine:
153      - extensive synthesis optimization      - extensive synthesis optimization
# Line 61  Version CVS HEAD (?) Line 190  Version CVS HEAD (?)
190      - reimplementation of the filter algorithm. The new filter is more      - reimplementation of the filter algorithm. The new filter is more
191        accurate and supports all gig filter types, including bandreject        accurate and supports all gig filter types, including bandreject
192        and lowpass turbo.        and lowpass turbo.
193        - real support for 24 bit samples - samples are not truncated to
194          16 bits anymore
195        - support for aftertouch (channel pressure, not polyphonic
196          aftertouch)
197        - LFO1 behaviour fixed (dampening from max volume instead of
198          amplifying from 0)
199    
200    * LSCP server:    * LSCP server:
201      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 75  Version CVS HEAD (?) Line 210  Version CVS HEAD (?)
210    * MIDI driver:    * MIDI driver:
211      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
212        messages several times instead of once        messages several times instead of once
213        - API extension for MIDI drivers which already supply exact time stamps
214          for events (i.e. for offline rendering based MIDI drivers)
215        - added checks for bad MIDI data
216    
217    * linuxsampler application:    * linuxsampler application:
218      - show available sampler engine types on startup      - show available sampler engine types on startup
# Line 94  Version CVS HEAD (?) Line 232  Version CVS HEAD (?)
232      - fixed some memory management errors      - fixed some memory management errors
233      - fixed some concurrency problems that could lead to crashes when      - fixed some concurrency problems that could lead to crashes when
234        LSCP commands were executed        LSCP commands were executed
235        - fixed crash when instrument loading failed previously on the same
236          sampler channel (fixes bug #36)
237    
238  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
239    

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