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revision 852 by schoenebeck, Fri Apr 14 19:13:32 2006 UTC revision 1259 by schoenebeck, Tue Jun 26 21:41:09 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    
63      * MIDI driver:
64        - dispatch bank select (MSB and LSB) messages
65    
66      * audio driver:
67        - the ALSA audio output driver parameters now reflect the correct
68          parameter value ranges for the respective selected sound card
69          (patch by Till Wimmer, a bit fixed and extended)
70    
71      * Gigasampler format engine:
72        - if a filter is used and EG2 finishes before EG1, let the voice
73          die when EG2 has finished (this fixes a problem with clicks and
74          voice starvation for some gigs)
75        - playback is no longer disabled during instrument loading
76        - all notes playing on a channel that changes its instrument keep
77          playing with the old instrument until they get a note off
78          command
79        - EG fix: a release value of zero could cause noises or crash
80        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
81        - EG fine tuning: when attack is zero the EG starts at a level
82          above max sustain level, which means that there is a decay phase
83          even if sustain is 100%
84        - more EG fixes: the level could sometimes go below zero and cause
85          noises or crashes
86        - minor fix of EGDecay (patch by Toshi Nagata)
87        - fixed compiler error when --enable-override-filter-type was
88          supplied to the configure script (fixes #46)
89    
90      * LSCP server:
91        - fixed compile time error for old Bison versions
92          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
93        - parser now supports extended ASCII character set
94          (up to ASCII code 255, i.e. includes now umlauts and accents)
95        - filename arguments in LSCP commands now allow to use escape
96          sequences, that is directly literal as one of: \', \", \\, \n, \r,
97          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
98          code value like \xf2) (fixes bug #24)
99        - returns verbose syntax errors (line and column where syntax error
100          occured, the unexpected character and the actually expected, possible
101          character(s), the latter only if less than 5 possibilities)
102    
103      * Bug fixes:
104        - fixed crash occurring on certain LSCP scripts (Bug 39)
105        - another thread safety fix for lscp "load engine" and "set
106          channel audio output device"
107    
108      * test cases:
109        - updated and fixed (haven't been touched in a while)
110    
111    Version 0.4.0 (24 November 2006)
112    
113      * packaging changes:
114        - changed deprecated copyright attribute to license; added ldconfig
115          to post-(un)install steps; added devel package for liblinuxsampler;
116          to linuxsampler.spec (RPM)
117      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
118        applications to link against liblinuxsampler        applications to link against liblinuxsampler
119      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 16  Version CVS HEAD (?) Line 129  Version CVS HEAD (?)
129        messages        messages
130      - added compile time options to allow disabling the various audio and      - added compile time options to allow disabling the various audio and
131        MIDI drivers        MIDI drivers
132        - fixed automatic GCC CPU switch detection on PPC
133          (patch by Ebrahim Mayat)
134    
135    * Gigasampler format engine:    * Gigasampler format engine:
136      - extensive synthesis optimization      - extensive synthesis optimization
# Line 31  Version CVS HEAD (?) Line 146  Version CVS HEAD (?)
146        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
147        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
148        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
149      - 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.  
150      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
151      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
152        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 54  Version CVS HEAD (?) Line 166  Version CVS HEAD (?)
166        parameter        parameter
167      - added smoothing of volume changes caused by control change      - added smoothing of volume changes caused by control change
168        messages        messages
169        - sample loop parameters are now taken from the DimensionRegion
170          instead of the wave chunk
171        - fixed keyswitching for v3 gigs with a number of keyswitch splits
172          not equal to a power of two
173        - reimplementation of the filter algorithm. The new filter is more
174          accurate and supports all gig filter types, including bandreject
175          and lowpass turbo.
176        - real support for 24 bit samples - samples are not truncated to
177          16 bits anymore
178        - support for aftertouch (channel pressure, not polyphonic
179          aftertouch)
180        - LFO1 behaviour fixed (dampening from max volume instead of
181          amplifying from 0)
182    
183    * LSCP server:    * LSCP server:
184      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 68  Version CVS HEAD (?) Line 193  Version CVS HEAD (?)
193    * MIDI driver:    * MIDI driver:
194      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
195        messages several times instead of once        messages several times instead of once
196        - API extension for MIDI drivers which already supply exact time stamps
197          for events (i.e. for offline rendering based MIDI drivers)
198        - added checks for bad MIDI data
199    
200      * linuxsampler application:
201        - show available sampler engine types on startup
202    
203    * general changes:    * general changes:
204      - 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 84  Version CVS HEAD (?) Line 215  Version CVS HEAD (?)
215      - fixed some memory management errors      - fixed some memory management errors
216      - fixed some concurrency problems that could lead to crashes when      - fixed some concurrency problems that could lead to crashes when
217        LSCP commands were executed        LSCP commands were executed
218        - fixed crash when instrument loading failed previously on the same
219          sampler channel (fixes bug #36)
220    
221  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
222    

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