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revision 797 by persson, Wed Nov 2 19:26:15 2005 UTC revision 1295 by iliev, Mon Aug 13 20:05:56 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        - fixed a crash which occurs when reassigning the same engine
108          on a sampler channel with connected MIDI device
109        - fixed a crash which occurs when changing the number of ports of a MIDI
110          device connected to a sampler channel to number less then or equal
111          to the index of the port to which the sampler channel is connected.
112    
113      * test cases:
114        - updated and fixed (haven't been touched in a while)
115    
116    Version 0.4.0 (24 November 2006)
117    
118      * packaging changes:
119        - changed deprecated copyright attribute to license; added ldconfig
120          to post-(un)install steps; added devel package for liblinuxsampler;
121          to linuxsampler.spec (RPM)
122      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
123        applications to link against liblinuxsampler        applications to link against liblinuxsampler
124      - 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 128  Version CVS HEAD (?)
128        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
129        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
130        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
131        - do not automatically pick optimized gcc flags if the user already
132          provided some on his own (as CXXFLAGS)
133        - added compile time option to disable processing of All-Notes-Off MIDI
134          messages
135        - added compile time options to allow disabling the various audio and
136          MIDI drivers
137        - fixed automatic GCC CPU switch detection on PPC
138          (patch by Ebrahim Mayat)
139    
140    * Gigasampler format engine:    * Gigasampler format engine:
141      - extensive synthesis optimization      - extensive synthesis optimization
142        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
143        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
144        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
145        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
146        coefficients)        linearly interpolated inside a subfragment, unless
147          --disable-interpolate-volume is set.)
148      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
149      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
150        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
151        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
152        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
153        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
154      - 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.  
155      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
156      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
157        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 35  Version CVS HEAD (?) Line 159  Version CVS HEAD (?)
159        accurate. Release stage can now start before attack stage        accurate. Release stage can now start before attack stage
160        ends. Cancel release didn't work when sustain was zero. Attack        ends. Cancel release didn't work when sustain was zero. Attack
161        time now has a minimal value to prevent clicks.        time now has a minimal value to prevent clicks.
162        - fixed pitch changes larger than one octave
163        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
164        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
165          all modes can be altered via standard GM messages, that is CC5 for
166          altering portamento time, CC65 for enabling / disabling portamento
167          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
168        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
169          parameter) and crossfade
170        - added support for the "attenuation controller threshold" gig
171          parameter
172        - added smoothing of volume changes caused by control change
173          messages
174        - sample loop parameters are now taken from the DimensionRegion
175          instead of the wave chunk
176        - fixed keyswitching for v3 gigs with a number of keyswitch splits
177          not equal to a power of two
178        - reimplementation of the filter algorithm. The new filter is more
179          accurate and supports all gig filter types, including bandreject
180          and lowpass turbo.
181        - real support for 24 bit samples - samples are not truncated to
182          16 bits anymore
183        - support for aftertouch (channel pressure, not polyphonic
184          aftertouch)
185        - LFO1 behaviour fixed (dampening from max volume instead of
186          amplifying from 0)
187    
188    * LSCP server:    * LSCP server:
189      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
190      - fixed the notification messages delay due to lack of      - fixed the notification messages delay due to lack of
191        network activity (fixes bug #26)        network activity (fixes bug #26)
192        - fixed parser bug which occured on space(s) within device parameters
193          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
194    
195      * audio driver:
196        - added aRts audio output driver (by no means RT safe)
197    
198    * MIDI driver:    * MIDI driver:
199      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
200        messages several times instead of once        messages several times instead of once
201        - API extension for MIDI drivers which already supply exact time stamps
202          for events (i.e. for offline rendering based MIDI drivers)
203        - added checks for bad MIDI data
204    
205      * linuxsampler application:
206        - show available sampler engine types on startup
207    
208    * general changes:    * general changes:
209      - 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 57  Version CVS HEAD (?) Line 217  Version CVS HEAD (?)
217      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
218        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
219        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
220        - fixed some memory management errors
221        - fixed some concurrency problems that could lead to crashes when
222          LSCP commands were executed
223        - fixed crash when instrument loading failed previously on the same
224          sampler channel (fixes bug #36)
225    
226  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
227    

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