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revision 781 by schoenebeck, Mon Sep 26 10:17:00 2005 UTC revision 1454 by schoenebeck, Fri Oct 19 17:52:15 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - added autoconf checks for pthread library
5        - added autoconf check for pthread bug found on certain NPTL-enabled
6          glibc versions (see Gentoo bug report #194076)
7    
8    Version 0.5.0 (15 October 2007)
9    
10      * packaging changes:
11        - config.h is not going to be installed along with liblinuxsampler's
12          API header files anymore
13        - only the API relevant header (and source) files will be exported to
14          the Doxygen API documentation (explicitly listed in Doxyfile.in)
15        - added completely new XCode project files for Mac OSX which is now
16          capable to execute our autoconf environment, thus no need anymore
17          to maintain the compile time configuration file (osx/version.h) for
18          OSX manually (patch by Toshi Nagata)
19        - fixed buggy boolean --enable-foo / --disable-foo configure script
20          parameters
21        - global.h now only covers global definitions that are needed for the
22          C++ API header files, all implementation internal global definitions
23          are now in global_private.h
24        - atomic.h is not exposed to the C++ API anymore
25        - no need to include config.h anymore for using LS's API header files
26        - fixed warnings in API doc generation
27    
28      * general changes:
29        - replaced the old, confusing MIDI program change mechanism by a
30          flexible MIDI instrument mapper which allows to map arbitrary
31          (MIDI bank, MIDI program) pairs with arbitrary
32          (engine type, instrument file, file index) triplets which will be
33          loaded on the respective channel when such MIDI program change
34          messages arrive, beside that, each entry allows to define a life-time
35          strategy for the instrument, so the user can define whether the
36          instrument should i.e. be permanently loaded (to be able to switch
37          quickly among sounds) or i.e. loaded just on demand when the
38          respective program change arrives (to safe RAM space), as well as a
39          global volume factor for each entry, so the user can adjust the volume
40          dynamic of his mapped instrument collection without having to modify
41          the instrument files, also one can manage arbitrary amount of such
42          MIDI instrument maps and assign each sampler channel individually
43          a certain map, so that i.e. separation of normal instruments and
44          drumkits is possible
45        - new notification events for tracking changes to audio/MIDI devices,
46          MIDI instrument maps, MIDI instruments, FX sends, global volume.
47        - sampler was limited to load max. 200 instruments in the background
48          due to a constant size RingBuffer FIFO which is now replaced by a
49          dynamic (unlimited) size std::list FIFO
50        - added FX sends, these allow to route audio signals to arbitrary audio
51          output channels for being processed by external effect processors
52          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
53          controllers
54        - global (sampler wide) volume can now be controlled at runtime
55        - Implemented new, improved notification system
56        - fixed compilation errors regarding OSX
57          (patch by Toshi Nagata)
58        - implemented instruments database
59        - added support for escape sequences to the instruments database
60        - added highly experimental support for on-the-fly instrument editing
61          within the sampler's process (by using instrument editor plugins),
62          you'll notice the new "Registered instrument editors:" message on
63          startup, added a new LSCP command:
64          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
65          to spawn a matching instrument editor for the instrument on the
66          given sampler channel, the plugin path can be overridden at compile
67          time with ./configure --enable-plugin-dir=/some/dir
68        - added experimental code for synchronizing instrument editors hosted
69          in the sampler's process to safely edit instruments while playing
70          without a crash (hopefully) by either suspending single regions
71          wherever possible or if unavoidable whole engine(s)
72        - fixed several issues in fundamental "Thread" class: set scheduling
73          policy and priority on thread level, set a minimum stack size for
74          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
75          threads simply inherited properties of starting thread instead of
76          setting their own policy and priority
77        - minor fix in our automatic stack trace mechanism on crashes, the
78          main process did not wait for the stack trace process to finish
79          its output
80        - fixed some minor memory leaks
81        - reenabled assembly features support, at the moment only for
82          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
83        - minor assembly fix in x86 features detection (don't use the PIC
84          register, to avoid relocations in the text segment at runtime)
85        - POSIX callback functions of Thread.h are hidden
86    
87      * MIDI driver:
88        - dispatch bank select (MSB and LSB) messages
89    
90      * audio driver:
91        - the ALSA audio output driver parameters now reflect the correct
92          parameter value ranges for the respective selected sound card
93          (patch by Till Wimmer, a bit fixed and extended)
94    
95      * Gigasampler format engine:
96        - if a filter is used and EG2 finishes before EG1, let the voice
97          die when EG2 has finished (this fixes a problem with clicks and
98          voice starvation for some gigs)
99        - playback is no longer disabled during instrument loading
100        - all notes playing on a channel that changes its instrument keep
101          playing with the old instrument until they get a note off
102          command
103        - EG fix: a release value of zero could cause noises or crash
104        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
105        - EG fine tuning: when attack is zero the EG starts at a level
106          above max sustain level, which means that there is a decay phase
107          even if sustain is 100%
108        - more EG fixes: the level could sometimes go below zero and cause
109          noises or crashes
110        - minor fix of EGDecay (patch by Toshi Nagata)
111        - fixed compiler error when --enable-override-filter-type was
112          supplied to the configure script (fixes #46)
113        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
114          instead of a fix value
115        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
116          127 (solo mode) only kill voices if the respective mode really
117          changed
118    
119      * LSCP server:
120        - fixed compile time error for old Bison versions
121          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
122        - parser now supports extended ASCII character set
123          (up to ASCII code 255, i.e. includes now umlauts and accents)
124        - filename arguments in LSCP commands now allow to use escape
125          sequences, that is directly literal as one of: \', \", \\, \n, \r,
126          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
127          code value like \xf2) (fixes bug #24)
128        - the following LSCP commands now also support escape sequences for at
129          least one of their text-based parameters (i.e. name, description):
130          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
131          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
132          "SET DB_INSTRUMENT_DIRECTORY NAME",
133          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
134          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
135          "FIND DB_INSTRUMENT_DIRECTORIES"
136        - returns verbose syntax errors (line and column where syntax error
137          occured, the unexpected character and the actually expected, possible
138          character(s), the latter only if less than 5 possibilities)
139        - made sure that LSCP syntax is not affected by gigedit locale
140          settings
141        - bugfix regarding strings parameter lists: all comma separated lists
142          of strings were treated as being one string containing commas
143          (fixes #57)
144    
145      * Bug fixes:
146        - fixed crash occurring on certain LSCP scripts (Bug 39)
147        - another thread safety fix for lscp "load engine" and "set
148          channel audio output device"
149        - fixed a crash which occurs when reassigning the same engine
150          on a sampler channel with connected MIDI device
151        - fixed a crash which occurs when changing the number of ports of a MIDI
152          device connected to a sampler channel to number less then or equal
153          to the index of the port to which the sampler channel is connected.
154        - The previous bindings were not been disconnected when altering
155          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
156          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
157        - The active stream/voice count statistic was incorrect.
158        - notification events were not been sent for some sampler
159          channel changes
160        - added default min and max values to restrict the number of allowed
161          audio output channels and MIDI input ports
162        - the connection to the PCM interface is now closed when destroying
163          an audio output device
164        - files with slash in their path or filename could not be loaded
165    
166      * test cases:
167        - updated and fixed (haven't been touched in a while)
168    
169    Version 0.4.0 (24 November 2006)
170    
171      * packaging changes:
172        - changed deprecated copyright attribute to license; added ldconfig
173          to post-(un)install steps; added devel package for liblinuxsampler;
174          to linuxsampler.spec (RPM)
175      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
176        applications to link against liblinuxsampler        applications to link against liblinuxsampler
177      - 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 181  Version CVS HEAD (?)
181        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
182        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
183        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
184        - do not automatically pick optimized gcc flags if the user already
185          provided some on his own (as CXXFLAGS)
186        - added compile time option to disable processing of All-Notes-Off MIDI
187          messages
188        - added compile time options to allow disabling the various audio and
189          MIDI drivers
190        - fixed automatic GCC CPU switch detection on PPC
191          (patch by Ebrahim Mayat)
192    
193    * Gigasampler format engine:    * Gigasampler format engine:
194      - extensive synthesis optimization      - extensive synthesis optimization
195        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
196        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
197        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
198        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
199        coefficients)        linearly interpolated inside a subfragment, unless
200          --disable-interpolate-volume is set.)
201      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
202      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
203        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
204        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
205        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
206        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
207        - added support for gig parameter Resonance.
208      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
209      - added global volume attenuation of -9 dB (0.35f) to prevent clipping      - added global volume attenuation of -9 dB (0.35f) to prevent clipping
210        which can be overridden with --enable-global-attenuation        which can be overridden with --enable-global-attenuation
211        - EG fixes: made the length of "attack hold" stage more
212          accurate. Release stage can now start before attack stage
213          ends. Cancel release didn't work when sustain was zero. Attack
214          time now has a minimal value to prevent clicks.
215        - fixed pitch changes larger than one octave
216        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
217        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
218          all modes can be altered via standard GM messages, that is CC5 for
219          altering portamento time, CC65 for enabling / disabling portamento
220          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
221        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
222          parameter) and crossfade
223        - added support for the "attenuation controller threshold" gig
224          parameter
225        - added smoothing of volume changes caused by control change
226          messages
227        - sample loop parameters are now taken from the DimensionRegion
228          instead of the wave chunk
229        - fixed keyswitching for v3 gigs with a number of keyswitch splits
230          not equal to a power of two
231        - reimplementation of the filter algorithm. The new filter is more
232          accurate and supports all gig filter types, including bandreject
233          and lowpass turbo.
234        - real support for 24 bit samples - samples are not truncated to
235          16 bits anymore
236        - support for aftertouch (channel pressure, not polyphonic
237          aftertouch)
238        - LFO1 behaviour fixed (dampening from max volume instead of
239          amplifying from 0)
240    
241    * LSCP server:    * LSCP server:
242      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
243        - fixed the notification messages delay due to lack of
244          network activity (fixes bug #26)
245        - fixed parser bug which occured on space(s) within device parameters
246          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
247    
248      * audio driver:
249        - added aRts audio output driver (by no means RT safe)
250    
251    * MIDI driver:    * MIDI driver:
252      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
253        messages several times instead of once        messages several times instead of once
254        - API extension for MIDI drivers which already supply exact time stamps
255          for events (i.e. for offline rendering based MIDI drivers)
256        - added checks for bad MIDI data
257    
258      * linuxsampler application:
259        - show available sampler engine types on startup
260    
261    * general changes:    * general changes:
262      - 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 47  Version CVS HEAD (?) Line 270  Version CVS HEAD (?)
270      - support for monitoring the total number of active voices      - support for monitoring the total number of active voices
271        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,        (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
272        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)        SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
273        - fixed some memory management errors
274        - fixed some concurrency problems that could lead to crashes when
275          LSCP commands were executed
276        - fixed crash when instrument loading failed previously on the same
277          sampler channel (fixes bug #36)
278    
279  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)
280    

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