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revision 838 by schoenebeck, Fri Feb 10 14:57:40 2006 UTC revision 1332 by schoenebeck, Sun Sep 9 12:22:34 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        - added experimental code for synchronizing instrument editors hosted
52          in the sampler's process to safely edit instruments while playing
53          without a crash (hopefully) by either suspending single regions
54          wherever possible or if unavoidable whole engine(s)
55        - fixed several issues in fundamental "Thread" class: set scheduling
56          policy and priority on thread level, set a minimum stack size for
57          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
58          threads simply inherited properties of starting thread instead of
59          setting their own policy and priority
60        - minor fix in our automatic stack trace mechanism on crashes, the
61          main process did not wait for the stack trace process to finish
62          its output
63        - fixed some minor memory leaks
64        - reenabled assembly features support, at the moment only for
65          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
66        - minor assembly fix in x86 features detection (don't use the PIC
67          register, to avoid relocations in the text segment at runtime)
68    
69      * MIDI driver:
70        - dispatch bank select (MSB and LSB) messages
71    
72      * audio driver:
73        - the ALSA audio output driver parameters now reflect the correct
74          parameter value ranges for the respective selected sound card
75          (patch by Till Wimmer, a bit fixed and extended)
76    
77      * Gigasampler format engine:
78        - if a filter is used and EG2 finishes before EG1, let the voice
79          die when EG2 has finished (this fixes a problem with clicks and
80          voice starvation for some gigs)
81        - playback is no longer disabled during instrument loading
82        - all notes playing on a channel that changes its instrument keep
83          playing with the old instrument until they get a note off
84          command
85        - EG fix: a release value of zero could cause noises or crash
86        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
87        - EG fine tuning: when attack is zero the EG starts at a level
88          above max sustain level, which means that there is a decay phase
89          even if sustain is 100%
90        - more EG fixes: the level could sometimes go below zero and cause
91          noises or crashes
92        - minor fix of EGDecay (patch by Toshi Nagata)
93        - fixed compiler error when --enable-override-filter-type was
94          supplied to the configure script (fixes #46)
95        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
96          instead of a fix value
97    
98      * LSCP server:
99        - fixed compile time error for old Bison versions
100          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
101        - parser now supports extended ASCII character set
102          (up to ASCII code 255, i.e. includes now umlauts and accents)
103        - filename arguments in LSCP commands now allow to use escape
104          sequences, that is directly literal as one of: \', \", \\, \n, \r,
105          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
106          code value like \xf2) (fixes bug #24)
107        - returns verbose syntax errors (line and column where syntax error
108          occured, the unexpected character and the actually expected, possible
109          character(s), the latter only if less than 5 possibilities)
110    
111      * Bug fixes:
112        - fixed crash occurring on certain LSCP scripts (Bug 39)
113        - another thread safety fix for lscp "load engine" and "set
114          channel audio output device"
115        - fixed a crash which occurs when reassigning the same engine
116          on a sampler channel with connected MIDI device
117        - fixed a crash which occurs when changing the number of ports of a MIDI
118          device connected to a sampler channel to number less then or equal
119          to the index of the port to which the sampler channel is connected.
120        - The previous bindings were not been disconnected when altering
121          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
122          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
123        - The active stream/voice count statistic was incorrect.
124        - notification events were not been sent for some sampler
125          channel changes
126        - added default min and max values to restrict the number of allowed
127          audio output channels and MIDI input ports
128        - the connection to the PCM interface is now closed when destroying
129          an audio output device
130        - files with slash in their path or filename could not be loaded
131    
132      * test cases:
133        - updated and fixed (haven't been touched in a while)
134    
135    Version 0.4.0 (24 November 2006)
136    
137      * packaging changes:
138        - changed deprecated copyright attribute to license; added ldconfig
139          to post-(un)install steps; added devel package for liblinuxsampler;
140          to linuxsampler.spec (RPM)
141      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
142        applications to link against liblinuxsampler        applications to link against liblinuxsampler
143      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 12  Version CVS HEAD (?) Line 149  Version CVS HEAD (?)
149        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
150      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
151        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
152        - added compile time option to disable processing of All-Notes-Off MIDI
153          messages
154        - added compile time options to allow disabling the various audio and
155          MIDI drivers
156        - fixed automatic GCC CPU switch detection on PPC
157          (patch by Ebrahim Mayat)
158    
159    * Gigasampler format engine:    * Gigasampler format engine:
160      - extensive synthesis optimization      - extensive synthesis optimization
# Line 27  Version CVS HEAD (?) Line 170  Version CVS HEAD (?)
170        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
171        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
172        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
173      - 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.  
174      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
175      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
176        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 50  Version CVS HEAD (?) Line 190  Version CVS HEAD (?)
190        parameter        parameter
191      - added smoothing of volume changes caused by control change      - added smoothing of volume changes caused by control change
192        messages        messages
193        - sample loop parameters are now taken from the DimensionRegion
194          instead of the wave chunk
195        - fixed keyswitching for v3 gigs with a number of keyswitch splits
196          not equal to a power of two
197        - reimplementation of the filter algorithm. The new filter is more
198          accurate and supports all gig filter types, including bandreject
199          and lowpass turbo.
200        - real support for 24 bit samples - samples are not truncated to
201          16 bits anymore
202        - support for aftertouch (channel pressure, not polyphonic
203          aftertouch)
204        - LFO1 behaviour fixed (dampening from max volume instead of
205          amplifying from 0)
206    
207    * LSCP server:    * LSCP server:
208      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 64  Version CVS HEAD (?) Line 217  Version CVS HEAD (?)
217    * MIDI driver:    * MIDI driver:
218      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
219        messages several times instead of once        messages several times instead of once
220        - API extension for MIDI drivers which already supply exact time stamps
221          for events (i.e. for offline rendering based MIDI drivers)
222        - added checks for bad MIDI data
223    
224      * linuxsampler application:
225        - show available sampler engine types on startup
226    
227    * general changes:    * general changes:
228      - 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 78  Version CVS HEAD (?) Line 237  Version CVS HEAD (?)
237        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
238        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
239      - fixed some memory management errors      - fixed some memory management errors
240        - fixed some concurrency problems that could lead to crashes when
241          LSCP commands were executed
242        - fixed crash when instrument loading failed previously on the same
243          sampler channel (fixes bug #36)
244    
245  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
246    

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