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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1455 - (show annotations) (download)
Sun Oct 21 11:59:59 2007 UTC (16 years, 1 month ago) by persson
File size: 17412 byte(s)
* bugfix: the thread used by an editor plugin didn't die when the
  editor closed

1 Version CVS HEAD (?)
3 * 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)
8 * general changes:
9 - bugfix: the thread used by an editor plugin didn't die when the
10 editor closed
12 Version 0.5.0 (15 October 2007)
14 * packaging changes:
15 - config.h is not going to be installed along with liblinuxsampler's
16 API header files anymore
17 - only the API relevant header (and source) files will be exported to
18 the Doxygen API documentation (explicitly listed in Doxyfile.in)
19 - added completely new XCode project files for Mac OSX which is now
20 capable to execute our autoconf environment, thus no need anymore
21 to maintain the compile time configuration file (osx/version.h) for
22 OSX manually (patch by Toshi Nagata)
23 - fixed buggy boolean --enable-foo / --disable-foo configure script
24 parameters
25 - global.h now only covers global definitions that are needed for the
26 C++ API header files, all implementation internal global definitions
27 are now in global_private.h
28 - atomic.h is not exposed to the C++ API anymore
29 - no need to include config.h anymore for using LS's API header files
30 - fixed warnings in API doc generation
32 * general changes:
33 - replaced the old, confusing MIDI program change mechanism by a
34 flexible MIDI instrument mapper which allows to map arbitrary
35 (MIDI bank, MIDI program) pairs with arbitrary
36 (engine type, instrument file, file index) triplets which will be
37 loaded on the respective channel when such MIDI program change
38 messages arrive, beside that, each entry allows to define a life-time
39 strategy for the instrument, so the user can define whether the
40 instrument should i.e. be permanently loaded (to be able to switch
41 quickly among sounds) or i.e. loaded just on demand when the
42 respective program change arrives (to safe RAM space), as well as a
43 global volume factor for each entry, so the user can adjust the volume
44 dynamic of his mapped instrument collection without having to modify
45 the instrument files, also one can manage arbitrary amount of such
46 MIDI instrument maps and assign each sampler channel individually
47 a certain map, so that i.e. separation of normal instruments and
48 drumkits is possible
49 - new notification events for tracking changes to audio/MIDI devices,
50 MIDI instrument maps, MIDI instruments, FX sends, global volume.
51 - sampler was limited to load max. 200 instruments in the background
52 due to a constant size RingBuffer FIFO which is now replaced by a
53 dynamic (unlimited) size std::list FIFO
54 - added FX sends, these allow to route audio signals to arbitrary audio
55 output channels for being processed by external effect processors
56 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
57 controllers
58 - global (sampler wide) volume can now be controlled at runtime
59 - Implemented new, improved notification system
60 - fixed compilation errors regarding OSX
61 (patch by Toshi Nagata)
62 - implemented instruments database
63 - added support for escape sequences to the instruments database
64 - added highly experimental support for on-the-fly instrument editing
65 within the sampler's process (by using instrument editor plugins),
66 you'll notice the new "Registered instrument editors:" message on
67 startup, added a new LSCP command:
68 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
69 to spawn a matching instrument editor for the instrument on the
70 given sampler channel, the plugin path can be overridden at compile
71 time with ./configure --enable-plugin-dir=/some/dir
72 - added experimental code for synchronizing instrument editors hosted
73 in the sampler's process to safely edit instruments while playing
74 without a crash (hopefully) by either suspending single regions
75 wherever possible or if unavoidable whole engine(s)
76 - fixed several issues in fundamental "Thread" class: set scheduling
77 policy and priority on thread level, set a minimum stack size for
78 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
79 threads simply inherited properties of starting thread instead of
80 setting their own policy and priority
81 - minor fix in our automatic stack trace mechanism on crashes, the
82 main process did not wait for the stack trace process to finish
83 its output
84 - fixed some minor memory leaks
85 - reenabled assembly features support, at the moment only for
86 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
87 - minor assembly fix in x86 features detection (don't use the PIC
88 register, to avoid relocations in the text segment at runtime)
89 - POSIX callback functions of Thread.h are hidden
91 * MIDI driver:
92 - dispatch bank select (MSB and LSB) messages
94 * audio driver:
95 - the ALSA audio output driver parameters now reflect the correct
96 parameter value ranges for the respective selected sound card
97 (patch by Till Wimmer, a bit fixed and extended)
99 * Gigasampler format engine:
100 - if a filter is used and EG2 finishes before EG1, let the voice
101 die when EG2 has finished (this fixes a problem with clicks and
102 voice starvation for some gigs)
103 - playback is no longer disabled during instrument loading
104 - all notes playing on a channel that changes its instrument keep
105 playing with the old instrument until they get a note off
106 command
107 - EG fix: a release value of zero could cause noises or crash
108 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
109 - EG fine tuning: when attack is zero the EG starts at a level
110 above max sustain level, which means that there is a decay phase
111 even if sustain is 100%
112 - more EG fixes: the level could sometimes go below zero and cause
113 noises or crashes
114 - minor fix of EGDecay (patch by Toshi Nagata)
115 - fixed compiler error when --enable-override-filter-type was
116 supplied to the configure script (fixes #46)
117 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
118 instead of a fix value
119 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
120 127 (solo mode) only kill voices if the respective mode really
121 changed
123 * LSCP server:
124 - fixed compile time error for old Bison versions
125 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
126 - parser now supports extended ASCII character set
127 (up to ASCII code 255, i.e. includes now umlauts and accents)
128 - filename arguments in LSCP commands now allow to use escape
129 sequences, that is directly literal as one of: \', \", \\, \n, \r,
130 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
131 code value like \xf2) (fixes bug #24)
132 - the following LSCP commands now also support escape sequences for at
133 least one of their text-based parameters (i.e. name, description):
140 - returns verbose syntax errors (line and column where syntax error
141 occured, the unexpected character and the actually expected, possible
142 character(s), the latter only if less than 5 possibilities)
143 - made sure that LSCP syntax is not affected by gigedit locale
144 settings
145 - bugfix regarding strings parameter lists: all comma separated lists
146 of strings were treated as being one string containing commas
147 (fixes #57)
149 * Bug fixes:
150 - fixed crash occurring on certain LSCP scripts (Bug 39)
151 - another thread safety fix for lscp "load engine" and "set
152 channel audio output device"
153 - fixed a crash which occurs when reassigning the same engine
154 on a sampler channel with connected MIDI device
155 - fixed a crash which occurs when changing the number of ports of a MIDI
156 device connected to a sampler channel to number less then or equal
157 to the index of the port to which the sampler channel is connected.
158 - The previous bindings were not been disconnected when altering
159 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
160 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
161 - The active stream/voice count statistic was incorrect.
162 - notification events were not been sent for some sampler
163 channel changes
164 - added default min and max values to restrict the number of allowed
165 audio output channels and MIDI input ports
166 - the connection to the PCM interface is now closed when destroying
167 an audio output device
168 - files with slash in their path or filename could not be loaded
170 * test cases:
171 - updated and fixed (haven't been touched in a while)
173 Version 0.4.0 (24 November 2006)
175 * packaging changes:
176 - changed deprecated copyright attribute to license; added ldconfig
177 to post-(un)install steps; added devel package for liblinuxsampler;
178 to linuxsampler.spec (RPM)
179 - install necessary development header files for allowing 3rd party
180 applications to link against liblinuxsampler
181 - liblinuxsampler's API documentation can be generated with 'make docs'
182 (Doxygen required)
183 - added benchmark to automatically detect the best triangle LFO
184 implementation (currently either an integer math solution or a
185 di-harmonic approximation), automatic detection can be overriden
186 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
187 configure script argument though (mandatory for cross-compilation)
188 - do not automatically pick optimized gcc flags if the user already
189 provided some on his own (as CXXFLAGS)
190 - added compile time option to disable processing of All-Notes-Off MIDI
191 messages
192 - added compile time options to allow disabling the various audio and
193 MIDI drivers
194 - fixed automatic GCC CPU switch detection on PPC
195 (patch by Ebrahim Mayat)
197 * Gigasampler format engine:
198 - extensive synthesis optimization
199 (reimplementation of EGs and LFO(s), removed synthesis parameter
200 prerendering and the synthesis parameter matrix in general, splitting
201 each audio fragment into subfragments now where each subfragment uses
202 constant pitch and filter coefficients. The volume coefficient is
203 linearly interpolated inside a subfragment, unless
204 --disable-interpolate-volume is set.)
205 - fine tuning of the EG modulation parameters
206 - improved filter cutoff calculation by adding support for the
207 following gig parameters: Cutoff freq (used when no cutoff
208 controller is defined), Control invert, Minimum cutoff, Velocity
209 curve and Velocity range. The keyboard tracking now scales
210 cutoff frequency instead of resonance.
211 - added support for gig parameter Resonance.
212 - fixed bug in sysex handling (patch by Juan Linietsky)
213 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
214 which can be overridden with --enable-global-attenuation
215 - EG fixes: made the length of "attack hold" stage more
216 accurate. Release stage can now start before attack stage
217 ends. Cancel release didn't work when sustain was zero. Attack
218 time now has a minimal value to prevent clicks.
219 - fixed pitch changes larger than one octave
220 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
221 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
222 all modes can be altered via standard GM messages, that is CC5 for
223 altering portamento time, CC65 for enabling / disabling portamento
224 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
225 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
226 parameter) and crossfade
227 - added support for the "attenuation controller threshold" gig
228 parameter
229 - added smoothing of volume changes caused by control change
230 messages
231 - sample loop parameters are now taken from the DimensionRegion
232 instead of the wave chunk
233 - fixed keyswitching for v3 gigs with a number of keyswitch splits
234 not equal to a power of two
235 - reimplementation of the filter algorithm. The new filter is more
236 accurate and supports all gig filter types, including bandreject
237 and lowpass turbo.
238 - real support for 24 bit samples - samples are not truncated to
239 16 bits anymore
240 - support for aftertouch (channel pressure, not polyphonic
241 aftertouch)
242 - LFO1 behaviour fixed (dampening from max volume instead of
243 amplifying from 0)
245 * LSCP server:
246 - fixed application exit on broken pipe error (fixes bug #20)
247 - fixed the notification messages delay due to lack of
248 network activity (fixes bug #26)
249 - fixed parser bug which occured on space(s) within device parameters
252 * audio driver:
253 - added aRts audio output driver (by no means RT safe)
255 * MIDI driver:
256 - fixed legacy sysex code which caused dispatching of MIDI SysEx
257 messages several times instead of once
258 - API extension for MIDI drivers which already supply exact time stamps
259 for events (i.e. for offline rendering based MIDI drivers)
260 - added checks for bad MIDI data
262 * linuxsampler application:
263 - show available sampler engine types on startup
265 * general changes:
266 - support for muting sampler channels and solo mode of the same, two new
267 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
268 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
269 introduced for this, the behavior is the same like on a mixer console
270 (patch by Grigor Iliev, a bit adjusted). Also added configure option
271 --enable-process-muted-channels which can be used to enable the
272 processing of muted channels.
273 - support for sostenuto pedal
274 - support for monitoring the total number of active voices
277 - fixed some memory management errors
278 - fixed some concurrency problems that could lead to crashes when
279 LSCP commands were executed
280 - fixed crash when instrument loading failed previously on the same
281 sampler channel (fixes bug #36)
283 Version 0.3.3 (15 July 2005)
285 * packaging changes:
286 - fixed compilation with gcc 4.0
288 * Gigasampler format engine:
289 - LFO preprocessing was performed even though the respective LFO was
290 disabled by the instrument patch (minor efficiency fix)
291 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
292 for volume ramp downs in the same fragment (needed for current voice
293 stealing implementation) then simply inform the user with a warning
294 about possible click sounds and reduce the volume ramp down
295 appropriately instead of cancelling the audio device connection
297 Version 0.3.2 (24 June 2005)
299 * packaging changes:
300 - updated autotools build files to compile on OS X
301 (conditional compilation of CoreMIDI and MidiShare drivers)
302 - hand-crafted assembly optimization code can be disabled with
303 './configure --disable-asm' (definitely not recommended)
304 - fixed 'make dist' rule to include all necessary files
305 - require automake (>= 1.5) for 'make -f Makefile.cvs'
306 (due to 'dist-bzip2' automake option)
308 * Gigasampler format engine:
309 - support for the gig parameters for "release velocity response" curves
310 - fine tuning of the EGADSR envelope
311 - volume of release triggered samples now depends on note-on velocity,
312 note length and gig parameter "release trigger decay" instead of
313 note-off velocity.
314 - revised voice stealing
315 (fixes crash and endless loop caused by voice stealing)
316 - don't reset scale tuning on instrument or audio output device change
317 - handle key group conflicts right at the beginning of each fragment
318 instead of when the respective voice is actually launched
319 (fixes undefined behavior if stolen voices belonged to a key group -
320 this case was followed by a "killed voice survived" error message)
321 - fixed minor issue with null/silence samples
322 (those stole voices even though they don't need a voice at all which
323 resulted in "voice stealing didn't work out" messages)
324 - don't reset volume, pan, pitch and MIDI controller values on
325 instrument or audio output device change
327 * LSCP server:
328 - fixed some crashes (patch by Grigor Iliev, fixes #19)
329 - fixed LSCP event "CHANNEL_INFO" notification
330 (e.g. did not notify on volume changes or MIDI program change events)
332 * linuxsampler application:
333 - added command line parameters --lscp-addr and --lscp-port to override
334 default IP address and port of LSCP server
336 Version 0.3.1 (24 May 2005)
338 * initial release

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