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Revision 1295 - (show annotations) (download)
Mon Aug 13 20:05:56 2007 UTC (16 years, 7 months ago) by iliev
File size: 14431 byte(s)
* fixed a crash which occurs when changing the number of ports of a MIDI
  device connected to a sampler channel to number less then or equal
  to the index of the port to which the sampler channel is connected

1 Version CVS HEAD (?)
2
3 * 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
123 applications to link against liblinuxsampler
124 - liblinuxsampler's API documentation can be generated with 'make docs'
125 (Doxygen required)
126 - added benchmark to automatically detect the best triangle LFO
127 implementation (currently either an integer math solution or a
128 di-harmonic approximation), automatic detection can be overriden
129 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
130 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:
141 - extensive synthesis optimization
142 (reimplementation of EGs and LFO(s), removed synthesis parameter
143 prerendering and the synthesis parameter matrix in general, splitting
144 each audio fragment into subfragments now where each subfragment uses
145 constant pitch and filter coefficients. The volume coefficient is
146 linearly interpolated inside a subfragment, unless
147 --disable-interpolate-volume is set.)
148 - fine tuning of the EG modulation parameters
149 - improved filter cutoff calculation by adding support for the
150 following gig parameters: Cutoff freq (used when no cutoff
151 controller is defined), Control invert, Minimum cutoff, Velocity
152 curve and Velocity range. The keyboard tracking now scales
153 cutoff frequency instead of resonance.
154 - added support for gig parameter Resonance.
155 - fixed bug in sysex handling (patch by Juan Linietsky)
156 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
157 which can be overridden with --enable-global-attenuation
158 - EG fixes: made the length of "attack hold" stage more
159 accurate. Release stage can now start before attack stage
160 ends. Cancel release didn't work when sustain was zero. Attack
161 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:
189 - fixed application exit on broken pipe error (fixes bug #20)
190 - fixed the notification messages delay due to lack of
191 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:
199 - fixed legacy sysex code which caused dispatching of MIDI SysEx
200 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:
209 - support for muting sampler channels and solo mode of the same, two new
210 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
211 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
212 introduced for this, the behavior is the same like on a mixer console
213 (patch by Grigor Iliev, a bit adjusted). Also added configure option
214 --enable-process-muted-channels which can be used to enable the
215 processing of muted channels.
216 - support for sostenuto pedal
217 - support for monitoring the total number of active voices
218 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
219 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)
227
228 * packaging changes:
229 - fixed compilation with gcc 4.0
230
231 * Gigasampler format engine:
232 - LFO preprocessing was performed even though the respective LFO was
233 disabled by the instrument patch (minor efficiency fix)
234 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
235 for volume ramp downs in the same fragment (needed for current voice
236 stealing implementation) then simply inform the user with a warning
237 about possible click sounds and reduce the volume ramp down
238 appropriately instead of cancelling the audio device connection
239
240 Version 0.3.2 (24 June 2005)
241
242 * packaging changes:
243 - updated autotools build files to compile on OS X
244 (conditional compilation of CoreMIDI and MidiShare drivers)
245 - hand-crafted assembly optimization code can be disabled with
246 './configure --disable-asm' (definitely not recommended)
247 - fixed 'make dist' rule to include all necessary files
248 - require automake (>= 1.5) for 'make -f Makefile.cvs'
249 (due to 'dist-bzip2' automake option)
250
251 * Gigasampler format engine:
252 - support for the gig parameters for "release velocity response" curves
253 - fine tuning of the EGADSR envelope
254 - volume of release triggered samples now depends on note-on velocity,
255 note length and gig parameter "release trigger decay" instead of
256 note-off velocity.
257 - revised voice stealing
258 (fixes crash and endless loop caused by voice stealing)
259 - don't reset scale tuning on instrument or audio output device change
260 - handle key group conflicts right at the beginning of each fragment
261 instead of when the respective voice is actually launched
262 (fixes undefined behavior if stolen voices belonged to a key group -
263 this case was followed by a "killed voice survived" error message)
264 - fixed minor issue with null/silence samples
265 (those stole voices even though they don't need a voice at all which
266 resulted in "voice stealing didn't work out" messages)
267 - don't reset volume, pan, pitch and MIDI controller values on
268 instrument or audio output device change
269
270 * LSCP server:
271 - fixed some crashes (patch by Grigor Iliev, fixes #19)
272 - fixed LSCP event "CHANNEL_INFO" notification
273 (e.g. did not notify on volume changes or MIDI program change events)
274
275 * linuxsampler application:
276 - added command line parameters --lscp-addr and --lscp-port to override
277 default IP address and port of LSCP server
278
279 Version 0.3.1 (24 May 2005)
280
281 * initial release

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