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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1525 - (show annotations) (download)
Sun Nov 25 17:47:46 2007 UTC (12 years, 10 months ago) by schoenebeck
File size: 18939 byte(s)
* LSCP: added new LSCP commands: "GET FILE INSTRUMENTS <file>",
  "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
  about an arbitrary instrument file on the system where the sampler is
  running on (LSCP specs yet to be updated!)
* bumped version to
* bumped LSCP compliance to LSCP version 1.3

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

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