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revision 729 by persson, Tue Jul 26 11:18:46 2005 UTC revision 1233 by schoenebeck, Mon Jun 11 13:42:21 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    
60      * MIDI driver:
61        - dispatch bank select (MSB and LSB) messages
62    
63      * audio driver:
64        - the ALSA audio output driver parameters now reflect the correct
65          parameter value ranges for the respective selected sound card
66          (patch by Till Wimmer, a bit fixed and extended)
67    
68      * Gigasampler format engine:
69        - if a filter is used and EG2 finishes before EG1, let the voice
70          die when EG2 has finished (this fixes a problem with clicks and
71          voice starvation for some gigs)
72        - playback is no longer disabled during instrument loading
73        - all notes playing on a channel that changes its instrument keep
74          playing with the old instrument until they get a note off
75          command
76        - EG fix: a release value of zero could cause noises or crash
77        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
78        - EG fine tuning: when attack is zero the EG starts at a level
79          above max sustain level, which means that there is a decay phase
80          even if sustain is 100%
81        - more EG fixes: the level could sometimes go below zero and cause
82          noises or crashes
83        - minor fix of EGDecay (patch by Toshi Nagata)
84        - fixed compiler error when --enable-override-filter-type was
85          supplied to the configure script (fixes #46)
86    
87      * Bug fixes:
88        - fixed crash occurring on certain LSCP scripts (Bug 39)
89        - another thread safety fix for lscp "load engine" and "set
90          channel audio output device"
91    
92      * test cases:
93        - updated and fixed (haven't been touched in a while)
94    
95    Version 0.4.0 (24 November 2006)
96    
97      * packaging changes:
98        - changed deprecated copyright attribute to license; added ldconfig
99          to post-(un)install steps; added devel package for liblinuxsampler;
100          to linuxsampler.spec (RPM)
101      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
102        applications to link against liblinuxsampler        applications to link against liblinuxsampler
103      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 10  Version CVS HEAD (?) Line 107  Version CVS HEAD (?)
107        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
108        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
109        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
110        - do not automatically pick optimized gcc flags if the user already
111          provided some on his own (as CXXFLAGS)
112        - added compile time option to disable processing of All-Notes-Off MIDI
113          messages
114        - added compile time options to allow disabling the various audio and
115          MIDI drivers
116        - fixed automatic GCC CPU switch detection on PPC
117          (patch by Ebrahim Mayat)
118    
119    * Gigasampler format engine:    * Gigasampler format engine:
120        - extensive synthesis optimization
121          (reimplementation of EGs and LFO(s), removed synthesis parameter
122          prerendering and the synthesis parameter matrix in general, splitting
123          each audio fragment into subfragments now where each subfragment uses
124          constant pitch and filter coefficients. The volume coefficient is
125          linearly interpolated inside a subfragment, unless
126          --disable-interpolate-volume is set.)
127      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
128      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
129        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
130        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
131        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
132        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
133        - added support for gig parameter Resonance.
134        - fixed bug in sysex handling (patch by Juan Linietsky)
135        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
136          which can be overridden with --enable-global-attenuation
137        - EG fixes: made the length of "attack hold" stage more
138          accurate. Release stage can now start before attack stage
139          ends. Cancel release didn't work when sustain was zero. Attack
140          time now has a minimal value to prevent clicks.
141        - fixed pitch changes larger than one octave
142        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
143        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
144          all modes can be altered via standard GM messages, that is CC5 for
145          altering portamento time, CC65 for enabling / disabling portamento
146          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
147        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
148          parameter) and crossfade
149        - added support for the "attenuation controller threshold" gig
150          parameter
151        - added smoothing of volume changes caused by control change
152          messages
153        - sample loop parameters are now taken from the DimensionRegion
154          instead of the wave chunk
155        - fixed keyswitching for v3 gigs with a number of keyswitch splits
156          not equal to a power of two
157        - reimplementation of the filter algorithm. The new filter is more
158          accurate and supports all gig filter types, including bandreject
159          and lowpass turbo.
160        - real support for 24 bit samples - samples are not truncated to
161          16 bits anymore
162        - support for aftertouch (channel pressure, not polyphonic
163          aftertouch)
164        - LFO1 behaviour fixed (dampening from max volume instead of
165          amplifying from 0)
166    
167    * LSCP server:    * LSCP server:
168      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
169        - fixed the notification messages delay due to lack of
170          network activity (fixes bug #26)
171        - fixed parser bug which occured on space(s) within device parameters
172          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
173    
174      * audio driver:
175        - added aRts audio output driver (by no means RT safe)
176    
177      * MIDI driver:
178        - fixed legacy sysex code which caused dispatching of MIDI SysEx
179          messages several times instead of once
180        - API extension for MIDI drivers which already supply exact time stamps
181          for events (i.e. for offline rendering based MIDI drivers)
182        - added checks for bad MIDI data
183    
184      * linuxsampler application:
185        - show available sampler engine types on startup
186    
187    * general changes:    * general changes:
188      - 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 30  Version CVS HEAD (?) Line 192  Version CVS HEAD (?)
192        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
193        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
194        processing of muted channels.        processing of muted channels.
195        - support for sostenuto pedal
196        - support for monitoring the total number of active voices
197          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
198          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
199        - fixed some memory management errors
200        - fixed some concurrency problems that could lead to crashes when
201          LSCP commands were executed
202        - fixed crash when instrument loading failed previously on the same
203          sampler channel (fixes bug #36)
204    
205  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
206    

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