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revision 900 by schoenebeck, Wed Jul 5 17:53:22 2006 UTC revision 1348 by schoenebeck, Fri Sep 14 14:45:11 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 support for escape sequences to the instruments database
45        - added highly experimental support for on-the-fly instrument editing
46          within the sampler's process (by using instrument editor plugins),
47          you'll notice the new "Registered instrument editors:" message on
48          startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
49          to spawn a matching instrument editor for the instrument on the
50          given sampler channel, the plugin path can be overridden at compile
51          time with ./configure --enable-plugin-dir=/some/dir
52        - added experimental code for synchronizing instrument editors hosted
53          in the sampler's process to safely edit instruments while playing
54          without a crash (hopefully) by either suspending single regions
55          wherever possible or if unavoidable whole engine(s)
56        - fixed several issues in fundamental "Thread" class: set scheduling
57          policy and priority on thread level, set a minimum stack size for
58          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
59          threads simply inherited properties of starting thread instead of
60          setting their own policy and priority
61        - minor fix in our automatic stack trace mechanism on crashes, the
62          main process did not wait for the stack trace process to finish
63          its output
64        - fixed some minor memory leaks
65        - reenabled assembly features support, at the moment only for
66          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
67        - minor assembly fix in x86 features detection (don't use the PIC
68          register, to avoid relocations in the text segment at runtime)
69    
70      * MIDI driver:
71        - dispatch bank select (MSB and LSB) messages
72    
73      * audio driver:
74        - the ALSA audio output driver parameters now reflect the correct
75          parameter value ranges for the respective selected sound card
76          (patch by Till Wimmer, a bit fixed and extended)
77    
78      * Gigasampler format engine:
79        - if a filter is used and EG2 finishes before EG1, let the voice
80          die when EG2 has finished (this fixes a problem with clicks and
81          voice starvation for some gigs)
82        - playback is no longer disabled during instrument loading
83        - all notes playing on a channel that changes its instrument keep
84          playing with the old instrument until they get a note off
85          command
86        - EG fix: a release value of zero could cause noises or crash
87        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
88        - EG fine tuning: when attack is zero the EG starts at a level
89          above max sustain level, which means that there is a decay phase
90          even if sustain is 100%
91        - more EG fixes: the level could sometimes go below zero and cause
92          noises or crashes
93        - minor fix of EGDecay (patch by Toshi Nagata)
94        - fixed compiler error when --enable-override-filter-type was
95          supplied to the configure script (fixes #46)
96        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
97          instead of a fix value
98        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
99          127 (solo mode) only kill voices if the respective mode really
100          changed
101    
102      * LSCP server:
103        - fixed compile time error for old Bison versions
104          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
105        - parser now supports extended ASCII character set
106          (up to ASCII code 255, i.e. includes now umlauts and accents)
107        - filename arguments in LSCP commands now allow to use escape
108          sequences, that is directly literal as one of: \', \", \\, \n, \r,
109          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
110          code value like \xf2) (fixes bug #24)
111        - returns verbose syntax errors (line and column where syntax error
112          occured, the unexpected character and the actually expected, possible
113          character(s), the latter only if less than 5 possibilities)
114    
115      * Bug fixes:
116        - fixed crash occurring on certain LSCP scripts (Bug 39)
117        - another thread safety fix for lscp "load engine" and "set
118          channel audio output device"
119        - fixed a crash which occurs when reassigning the same engine
120          on a sampler channel with connected MIDI device
121        - fixed a crash which occurs when changing the number of ports of a MIDI
122          device connected to a sampler channel to number less then or equal
123          to the index of the port to which the sampler channel is connected.
124        - The previous bindings were not been disconnected when altering
125          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
126          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
127        - The active stream/voice count statistic was incorrect.
128        - notification events were not been sent for some sampler
129          channel changes
130        - added default min and max values to restrict the number of allowed
131          audio output channels and MIDI input ports
132        - the connection to the PCM interface is now closed when destroying
133          an audio output device
134        - files with slash in their path or filename could not be loaded
135    
136      * test cases:
137        - updated and fixed (haven't been touched in a while)
138    
139    Version 0.4.0 (24 November 2006)
140    
141      * packaging changes:
142      - changed deprecated copyright attribute to license; added ldconfig      - changed deprecated copyright attribute to license; added ldconfig
143        to post-(un)install steps; added devel package for liblinuxsampler;        to post-(un)install steps; added devel package for liblinuxsampler;
144        to linuxsampler.spec (RPM)        to linuxsampler.spec (RPM)
# Line 19  Version CVS HEAD (?) Line 157  Version CVS HEAD (?)
157        messages        messages
158      - added compile time options to allow disabling the various audio and      - added compile time options to allow disabling the various audio and
159        MIDI drivers        MIDI drivers
160        - fixed automatic GCC CPU switch detection on PPC
161          (patch by Ebrahim Mayat)
162    
163    * Gigasampler format engine:    * Gigasampler format engine:
164      - extensive synthesis optimization      - extensive synthesis optimization
# Line 61  Version CVS HEAD (?) Line 201  Version CVS HEAD (?)
201      - reimplementation of the filter algorithm. The new filter is more      - reimplementation of the filter algorithm. The new filter is more
202        accurate and supports all gig filter types, including bandreject        accurate and supports all gig filter types, including bandreject
203        and lowpass turbo.        and lowpass turbo.
204        - real support for 24 bit samples - samples are not truncated to
205          16 bits anymore
206        - support for aftertouch (channel pressure, not polyphonic
207          aftertouch)
208        - LFO1 behaviour fixed (dampening from max volume instead of
209          amplifying from 0)
210    
211    * LSCP server:    * LSCP server:
212      - 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 221  Version CVS HEAD (?)
221    * MIDI driver:    * MIDI driver:
222      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
223        messages several times instead of once        messages several times instead of once
224        - API extension for MIDI drivers which already supply exact time stamps
225          for events (i.e. for offline rendering based MIDI drivers)
226        - added checks for bad MIDI data
227    
228    * linuxsampler application:    * linuxsampler application:
229      - show available sampler engine types on startup      - show available sampler engine types on startup
# Line 94  Version CVS HEAD (?) Line 243  Version CVS HEAD (?)
243      - fixed some memory management errors      - fixed some memory management errors
244      - fixed some concurrency problems that could lead to crashes when      - fixed some concurrency problems that could lead to crashes when
245        LSCP commands were executed        LSCP commands were executed
246        - fixed crash when instrument loading failed previously on the same
247          sampler channel (fixes bug #36)
248    
249  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
250    

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