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revision 831 by persson, Sat Jan 28 16:55:30 2006 UTC revision 1360 by schoenebeck, Sun Sep 30 20:04:11 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        - fixed buggy boolean --enable-foo / --disable-foo configure script
13          parameters
14    
15      * general changes:
16        - replaced the old, confusing MIDI program change mechanism by a
17          flexible MIDI instrument mapper which allows to map arbitrary
18          (MIDI bank, MIDI program) pairs with arbitrary
19          (engine type, instrument file, file index) triplets which will be
20          loaded on the respective channel when such MIDI program change
21          messages arrive, beside that, each entry allows to define a life-time
22          strategy for the instrument, so the user can define whether the
23          instrument should i.e. be permanently loaded (to be able to switch
24          quickly among sounds) or i.e. loaded just on demand when the
25          respective program change arrives (to safe RAM space), as well as a
26          global volume factor for each entry, so the user can adjust the volume
27          dynamic of his mapped instrument collection without having to modify
28          the instrument files, also one can manage arbitrary amount of such
29          MIDI instrument maps and assign each sampler channel individually
30          a certain map, so that i.e. separation of normal instruments and
31          drumkits is possible
32        - new notification events for tracking changes to audio/MIDI devices,
33          MIDI instrument maps, MIDI instruments, FX sends, global volume.
34        - sampler was limited to load max. 200 instruments in the background
35          due to a constant size RingBuffer FIFO which is now replaced by a
36          dynamic (unlimited) size std::list FIFO
37        - added FX sends, these allow to route audio signals to arbitrary audio
38          output channels for being processed by external effect processors
39          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
40          controllers
41        - global (sampler wide) volume can now be controlled at runtime
42        - Implemented new, improved notification system
43        - fixed compilation errors regarding OSX
44          (patch by Toshi Nagata)
45        - implemented instruments database
46        - added support for escape sequences to the instruments database
47        - added highly experimental support for on-the-fly instrument editing
48          within the sampler's process (by using instrument editor plugins),
49          you'll notice the new "Registered instrument editors:" message on
50          startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
51          to spawn a matching instrument editor for the instrument on the
52          given sampler channel, the plugin path can be overridden at compile
53          time with ./configure --enable-plugin-dir=/some/dir
54        - added experimental code for synchronizing instrument editors hosted
55          in the sampler's process to safely edit instruments while playing
56          without a crash (hopefully) by either suspending single regions
57          wherever possible or if unavoidable whole engine(s)
58        - fixed several issues in fundamental "Thread" class: set scheduling
59          policy and priority on thread level, set a minimum stack size for
60          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
61          threads simply inherited properties of starting thread instead of
62          setting their own policy and priority
63        - minor fix in our automatic stack trace mechanism on crashes, the
64          main process did not wait for the stack trace process to finish
65          its output
66        - fixed some minor memory leaks
67        - reenabled assembly features support, at the moment only for
68          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
69        - minor assembly fix in x86 features detection (don't use the PIC
70          register, to avoid relocations in the text segment at runtime)
71    
72      * MIDI driver:
73        - dispatch bank select (MSB and LSB) messages
74    
75      * audio driver:
76        - the ALSA audio output driver parameters now reflect the correct
77          parameter value ranges for the respective selected sound card
78          (patch by Till Wimmer, a bit fixed and extended)
79    
80      * Gigasampler format engine:
81        - if a filter is used and EG2 finishes before EG1, let the voice
82          die when EG2 has finished (this fixes a problem with clicks and
83          voice starvation for some gigs)
84        - playback is no longer disabled during instrument loading
85        - all notes playing on a channel that changes its instrument keep
86          playing with the old instrument until they get a note off
87          command
88        - EG fix: a release value of zero could cause noises or crash
89        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
90        - EG fine tuning: when attack is zero the EG starts at a level
91          above max sustain level, which means that there is a decay phase
92          even if sustain is 100%
93        - more EG fixes: the level could sometimes go below zero and cause
94          noises or crashes
95        - minor fix of EGDecay (patch by Toshi Nagata)
96        - fixed compiler error when --enable-override-filter-type was
97          supplied to the configure script (fixes #46)
98        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
99          instead of a fix value
100        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
101          127 (solo mode) only kill voices if the respective mode really
102          changed
103    
104      * LSCP server:
105        - fixed compile time error for old Bison versions
106          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
107        - parser now supports extended ASCII character set
108          (up to ASCII code 255, i.e. includes now umlauts and accents)
109        - filename arguments in LSCP commands now allow to use escape
110          sequences, that is directly literal as one of: \', \", \\, \n, \r,
111          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
112          code value like \xf2) (fixes bug #24)
113        - returns verbose syntax errors (line and column where syntax error
114          occured, the unexpected character and the actually expected, possible
115          character(s), the latter only if less than 5 possibilities)
116        - made sure that LSCP syntax is not affected by gigedit locale
117          settings
118    
119      * Bug fixes:
120        - fixed crash occurring on certain LSCP scripts (Bug 39)
121        - another thread safety fix for lscp "load engine" and "set
122          channel audio output device"
123        - fixed a crash which occurs when reassigning the same engine
124          on a sampler channel with connected MIDI device
125        - fixed a crash which occurs when changing the number of ports of a MIDI
126          device connected to a sampler channel to number less then or equal
127          to the index of the port to which the sampler channel is connected.
128        - The previous bindings were not been disconnected when altering
129          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
130          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
131        - The active stream/voice count statistic was incorrect.
132        - notification events were not been sent for some sampler
133          channel changes
134        - added default min and max values to restrict the number of allowed
135          audio output channels and MIDI input ports
136        - the connection to the PCM interface is now closed when destroying
137          an audio output device
138        - files with slash in their path or filename could not be loaded
139    
140      * test cases:
141        - updated and fixed (haven't been touched in a while)
142    
143    Version 0.4.0 (24 November 2006)
144    
145      * packaging changes:
146        - changed deprecated copyright attribute to license; added ldconfig
147          to post-(un)install steps; added devel package for liblinuxsampler;
148          to linuxsampler.spec (RPM)
149      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
150        applications to link against liblinuxsampler        applications to link against liblinuxsampler
151      - 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 157  Version CVS HEAD (?)
157        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
158      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
159        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
160        - added compile time option to disable processing of All-Notes-Off MIDI
161          messages
162        - added compile time options to allow disabling the various audio and
163          MIDI drivers
164        - fixed automatic GCC CPU switch detection on PPC
165          (patch by Ebrahim Mayat)
166    
167    * Gigasampler format engine:    * Gigasampler format engine:
168      - extensive synthesis optimization      - extensive synthesis optimization
# Line 27  Version CVS HEAD (?) Line 178  Version CVS HEAD (?)
178        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
179        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
180        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
181      - 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.  
182      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
183      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
184        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
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192        all modes can be altered via standard GM messages, that is CC5 for        all modes can be altered via standard GM messages, that is CC5 for
193        altering portamento time, CC65 for enabling / disabling portamento        altering portamento time, CC65 for enabling / disabling portamento
194        mode, CC126 for enabling solo mode and CC127 for disabling solo mode        mode, CC126 for enabling solo mode and CC127 for disabling solo mode
195      - fine tuning of the curves for volume (CC7) and pan (CC10 and gig      - fine tuning of the curves for volume (CC7), pan (CC10 and gig
196        parameter)        parameter) and crossfade
197      - added support for the "attenuation controller threshold" gig      - added support for the "attenuation controller threshold" gig
198        parameter        parameter
199        - added smoothing of volume changes caused by control change
200          messages
201        - sample loop parameters are now taken from the DimensionRegion
202          instead of the wave chunk
203        - fixed keyswitching for v3 gigs with a number of keyswitch splits
204          not equal to a power of two
205        - reimplementation of the filter algorithm. The new filter is more
206          accurate and supports all gig filter types, including bandreject
207          and lowpass turbo.
208        - real support for 24 bit samples - samples are not truncated to
209          16 bits anymore
210        - support for aftertouch (channel pressure, not polyphonic
211          aftertouch)
212        - LFO1 behaviour fixed (dampening from max volume instead of
213          amplifying from 0)
214    
215    * LSCP server:    * LSCP server:
216      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 56  Version CVS HEAD (?) Line 219  Version CVS HEAD (?)
219      - fixed parser bug which occured on space(s) within device parameters      - fixed parser bug which occured on space(s) within device parameters
220        (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")        (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
221    
222      * audio driver:
223        - added aRts audio output driver (by no means RT safe)
224    
225    * MIDI driver:    * MIDI driver:
226      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
227        messages several times instead of once        messages several times instead of once
228        - API extension for MIDI drivers which already supply exact time stamps
229          for events (i.e. for offline rendering based MIDI drivers)
230        - added checks for bad MIDI data
231    
232      * linuxsampler application:
233        - show available sampler engine types on startup
234    
235    * general changes:    * general changes:
236      - 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 72  Version CVS HEAD (?) Line 244  Version CVS HEAD (?)
244      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
245        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
246        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
247        - fixed some memory management errors
248        - fixed some concurrency problems that could lead to crashes when
249          LSCP commands were executed
250        - fixed crash when instrument loading failed previously on the same
251          sampler channel (fixes bug #36)
252    
253  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
254    

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