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revision 829 by schoenebeck, Sat Jan 14 14:07:47 2006 UTC revision 1345 by iliev, Thu Sep 13 21:46:25 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    
99      * LSCP server:
100        - fixed compile time error for old Bison versions
101          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
102        - parser now supports extended ASCII character set
103          (up to ASCII code 255, i.e. includes now umlauts and accents)
104        - filename arguments in LSCP commands now allow to use escape
105          sequences, that is directly literal as one of: \', \", \\, \n, \r,
106          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
107          code value like \xf2) (fixes bug #24)
108        - returns verbose syntax errors (line and column where syntax error
109          occured, the unexpected character and the actually expected, possible
110          character(s), the latter only if less than 5 possibilities)
111    
112      * Bug fixes:
113        - fixed crash occurring on certain LSCP scripts (Bug 39)
114        - another thread safety fix for lscp "load engine" and "set
115          channel audio output device"
116        - fixed a crash which occurs when reassigning the same engine
117          on a sampler channel with connected MIDI device
118        - fixed a crash which occurs when changing the number of ports of a MIDI
119          device connected to a sampler channel to number less then or equal
120          to the index of the port to which the sampler channel is connected.
121        - The previous bindings were not been disconnected when altering
122          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
123          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
124        - The active stream/voice count statistic was incorrect.
125        - notification events were not been sent for some sampler
126          channel changes
127        - added default min and max values to restrict the number of allowed
128          audio output channels and MIDI input ports
129        - the connection to the PCM interface is now closed when destroying
130          an audio output device
131        - files with slash in their path or filename could not be loaded
132    
133      * test cases:
134        - updated and fixed (haven't been touched in a while)
135    
136    Version 0.4.0 (24 November 2006)
137    
138      * packaging changes:
139        - changed deprecated copyright attribute to license; added ldconfig
140          to post-(un)install steps; added devel package for liblinuxsampler;
141          to linuxsampler.spec (RPM)
142      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
143        applications to link against liblinuxsampler        applications to link against liblinuxsampler
144      - 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 150  Version CVS HEAD (?)
150        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
151      - do not automatically pick optimized gcc flags if the user already      - do not automatically pick optimized gcc flags if the user already
152        provided some on his own (as CXXFLAGS)        provided some on his own (as CXXFLAGS)
153        - added compile time option to disable processing of All-Notes-Off MIDI
154          messages
155        - added compile time options to allow disabling the various audio and
156          MIDI drivers
157        - fixed automatic GCC CPU switch detection on PPC
158          (patch by Ebrahim Mayat)
159    
160    * Gigasampler format engine:    * Gigasampler format engine:
161      - extensive synthesis optimization      - extensive synthesis optimization
162        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
163        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
164        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
165        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
166        coefficients)        linearly interpolated inside a subfragment, unless
167          --disable-interpolate-volume is set.)
168      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
169      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
170        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
171        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
172        curve and Velocity range. The keyboard tracking now scales        curve and Velocity range. The keyboard tracking now scales
173        cutoff frequency instead of resonance.        cutoff frequency instead of resonance.
174      - 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.  
175      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
176      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
177        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
# Line 43  Version CVS HEAD (?) Line 185  Version CVS HEAD (?)
185        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
186        altering portamento time, CC65 for enabling / disabling portamento        altering portamento time, CC65 for enabling / disabling portamento
187        mode, CC126 for enabling solo mode and CC127 for disabling solo mode        mode, CC126 for enabling solo mode and CC127 for disabling solo mode
188        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
189          parameter) and crossfade
190        - added support for the "attenuation controller threshold" gig
191          parameter
192        - added smoothing of volume changes caused by control change
193          messages
194        - sample loop parameters are now taken from the DimensionRegion
195          instead of the wave chunk
196        - fixed keyswitching for v3 gigs with a number of keyswitch splits
197          not equal to a power of two
198        - reimplementation of the filter algorithm. The new filter is more
199          accurate and supports all gig filter types, including bandreject
200          and lowpass turbo.
201        - real support for 24 bit samples - samples are not truncated to
202          16 bits anymore
203        - support for aftertouch (channel pressure, not polyphonic
204          aftertouch)
205        - LFO1 behaviour fixed (dampening from max volume instead of
206          amplifying from 0)
207    
208    * LSCP server:    * LSCP server:
209      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
# Line 51  Version CVS HEAD (?) Line 212  Version CVS HEAD (?)
212      - fixed parser bug which occured on space(s) within device parameters      - fixed parser bug which occured on space(s) within device parameters
213        (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")        (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
214    
215      * audio driver:
216        - added aRts audio output driver (by no means RT safe)
217    
218    * MIDI driver:    * MIDI driver:
219      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
220        messages several times instead of once        messages several times instead of once
221        - API extension for MIDI drivers which already supply exact time stamps
222          for events (i.e. for offline rendering based MIDI drivers)
223        - added checks for bad MIDI data
224    
225      * linuxsampler application:
226        - show available sampler engine types on startup
227    
228    * general changes:    * general changes:
229      - 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 67  Version CVS HEAD (?) Line 237  Version CVS HEAD (?)
237      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
238        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
239        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
240        - fixed some memory management errors
241        - fixed some concurrency problems that could lead to crashes when
242          LSCP commands were executed
243        - fixed crash when instrument loading failed previously on the same
244          sampler channel (fixes bug #36)
245    
246  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
247    

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