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Revision 1360 - (show annotations) (download)
Sun Sep 30 20:04:11 2007 UTC (13 years, 7 months ago) by schoenebeck
File size: 15989 byte(s)
* fixed buggy boolean --enable-foo / --disable-foo configure script
  parameters

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 - 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
150 applications to link against liblinuxsampler
151 - liblinuxsampler's API documentation can be generated with 'make docs'
152 (Doxygen required)
153 - added benchmark to automatically detect the best triangle LFO
154 implementation (currently either an integer math solution or a
155 di-harmonic approximation), automatic detection can be overriden
156 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
157 configure script argument though (mandatory for cross-compilation)
158 - do not automatically pick optimized gcc flags if the user already
159 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:
168 - extensive synthesis optimization
169 (reimplementation of EGs and LFO(s), removed synthesis parameter
170 prerendering and the synthesis parameter matrix in general, splitting
171 each audio fragment into subfragments now where each subfragment uses
172 constant pitch and filter coefficients. The volume coefficient is
173 linearly interpolated inside a subfragment, unless
174 --disable-interpolate-volume is set.)
175 - fine tuning of the EG modulation parameters
176 - improved filter cutoff calculation by adding support for the
177 following gig parameters: Cutoff freq (used when no cutoff
178 controller is defined), Control invert, Minimum cutoff, Velocity
179 curve and Velocity range. The keyboard tracking now scales
180 cutoff frequency instead of resonance.
181 - added support for gig parameter Resonance.
182 - fixed bug in sysex handling (patch by Juan Linietsky)
183 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
184 which can be overridden with --enable-global-attenuation
185 - EG fixes: made the length of "attack hold" stage more
186 accurate. Release stage can now start before attack stage
187 ends. Cancel release didn't work when sustain was zero. Attack
188 time now has a minimal value to prevent clicks.
189 - fixed pitch changes larger than one octave
190 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
191 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
192 all modes can be altered via standard GM messages, that is CC5 for
193 altering portamento time, CC65 for enabling / disabling portamento
194 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
195 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
196 parameter) and crossfade
197 - added support for the "attenuation controller threshold" gig
198 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:
216 - fixed application exit on broken pipe error (fixes bug #20)
217 - fixed the notification messages delay due to lack of
218 network activity (fixes bug #26)
219 - fixed parser bug which occured on space(s) within device parameters
220 (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:
226 - fixed legacy sysex code which caused dispatching of MIDI SysEx
227 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:
236 - support for muting sampler channels and solo mode of the same, two new
237 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
238 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
239 introduced for this, the behavior is the same like on a mixer console
240 (patch by Grigor Iliev, a bit adjusted). Also added configure option
241 --enable-process-muted-channels which can be used to enable the
242 processing of muted channels.
243 - support for sostenuto pedal
244 - support for monitoring the total number of active voices
245 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
246 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)
254
255 * packaging changes:
256 - fixed compilation with gcc 4.0
257
258 * Gigasampler format engine:
259 - LFO preprocessing was performed even though the respective LFO was
260 disabled by the instrument patch (minor efficiency fix)
261 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
262 for volume ramp downs in the same fragment (needed for current voice
263 stealing implementation) then simply inform the user with a warning
264 about possible click sounds and reduce the volume ramp down
265 appropriately instead of cancelling the audio device connection
266
267 Version 0.3.2 (24 June 2005)
268
269 * packaging changes:
270 - updated autotools build files to compile on OS X
271 (conditional compilation of CoreMIDI and MidiShare drivers)
272 - hand-crafted assembly optimization code can be disabled with
273 './configure --disable-asm' (definitely not recommended)
274 - fixed 'make dist' rule to include all necessary files
275 - require automake (>= 1.5) for 'make -f Makefile.cvs'
276 (due to 'dist-bzip2' automake option)
277
278 * Gigasampler format engine:
279 - support for the gig parameters for "release velocity response" curves
280 - fine tuning of the EGADSR envelope
281 - volume of release triggered samples now depends on note-on velocity,
282 note length and gig parameter "release trigger decay" instead of
283 note-off velocity.
284 - revised voice stealing
285 (fixes crash and endless loop caused by voice stealing)
286 - don't reset scale tuning on instrument or audio output device change
287 - handle key group conflicts right at the beginning of each fragment
288 instead of when the respective voice is actually launched
289 (fixes undefined behavior if stolen voices belonged to a key group -
290 this case was followed by a "killed voice survived" error message)
291 - fixed minor issue with null/silence samples
292 (those stole voices even though they don't need a voice at all which
293 resulted in "voice stealing didn't work out" messages)
294 - don't reset volume, pan, pitch and MIDI controller values on
295 instrument or audio output device change
296
297 * LSCP server:
298 - fixed some crashes (patch by Grigor Iliev, fixes #19)
299 - fixed LSCP event "CHANNEL_INFO" notification
300 (e.g. did not notify on volume changes or MIDI program change events)
301
302 * linuxsampler application:
303 - added command line parameters --lscp-addr and --lscp-port to override
304 default IP address and port of LSCP server
305
306 Version 0.3.1 (24 May 2005)
307
308 * initial release

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