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Revision 1495 - (show annotations) (download)
Mon Nov 19 22:10:18 2007 UTC (16 years, 4 months ago) by schoenebeck
File size: 18469 byte(s)
* LSCP: allow naughty liblscp to send non-string device parameters
  within apostrophes as well

1 Version CVS HEAD (?)
2
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
8 * general changes:
9 - bugfix: the thread used by an editor plugin didn't die when the
10 editor closed
11 - bugfix: Ringbuffer.h:
12 fill_write_space_with_null() did not zero out all the space
13 operator--() did not apply size_mask after decrementing the read_ptr
14 DEFAULT_WRAP_ELEMENTS set to 0 in order to avoid problems with
15 the _NonVolatileReader functions.
16 - bugfix: Stream.h: added a missing divide by BytesPerSample in GetWriteSpace()
17 since this function is currently only used in the stream's
18 qsort() compare function, it didn't trigger any bugs
19 Resampler.h, Synthesizer.h:
20 cubic interpolation now works in 24bit mode too
21 faster method to read 24bit words on little endian machines (x86):
22 replaced 3 byte reads + shifts with a 1 unaligned 32bit read and shift
23
24 * MIDI driver:
25 - added MME Windows MIDI driver
26
27 * LSCP server:
28 - added support for Windows style path / filenames, however with
29 forward slash path separators instead of backslash
30 (i.e. "C:/foo/bar.gig")
31 - allow naughty liblscp to send non-string device parameters within
32 apostrophes as well
33
34 Version 0.5.0 (15 October 2007)
35
36 * packaging changes:
37 - config.h is not going to be installed along with liblinuxsampler's
38 API header files anymore
39 - only the API relevant header (and source) files will be exported to
40 the Doxygen API documentation (explicitly listed in Doxyfile.in)
41 - added completely new XCode project files for Mac OSX which is now
42 capable to execute our autoconf environment, thus no need anymore
43 to maintain the compile time configuration file (osx/version.h) for
44 OSX manually (patch by Toshi Nagata)
45 - fixed buggy boolean --enable-foo / --disable-foo configure script
46 parameters
47 - global.h now only covers global definitions that are needed for the
48 C++ API header files, all implementation internal global definitions
49 are now in global_private.h
50 - atomic.h is not exposed to the C++ API anymore
51 - no need to include config.h anymore for using LS's API header files
52 - fixed warnings in API doc generation
53
54 * general changes:
55 - replaced the old, confusing MIDI program change mechanism by a
56 flexible MIDI instrument mapper which allows to map arbitrary
57 (MIDI bank, MIDI program) pairs with arbitrary
58 (engine type, instrument file, file index) triplets which will be
59 loaded on the respective channel when such MIDI program change
60 messages arrive, beside that, each entry allows to define a life-time
61 strategy for the instrument, so the user can define whether the
62 instrument should i.e. be permanently loaded (to be able to switch
63 quickly among sounds) or i.e. loaded just on demand when the
64 respective program change arrives (to safe RAM space), as well as a
65 global volume factor for each entry, so the user can adjust the volume
66 dynamic of his mapped instrument collection without having to modify
67 the instrument files, also one can manage arbitrary amount of such
68 MIDI instrument maps and assign each sampler channel individually
69 a certain map, so that i.e. separation of normal instruments and
70 drumkits is possible
71 - new notification events for tracking changes to audio/MIDI devices,
72 MIDI instrument maps, MIDI instruments, FX sends, global volume.
73 - sampler was limited to load max. 200 instruments in the background
74 due to a constant size RingBuffer FIFO which is now replaced by a
75 dynamic (unlimited) size std::list FIFO
76 - added FX sends, these allow to route audio signals to arbitrary audio
77 output channels for being processed by external effect processors
78 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
79 controllers
80 - global (sampler wide) volume can now be controlled at runtime
81 - Implemented new, improved notification system
82 - fixed compilation errors regarding OSX
83 (patch by Toshi Nagata)
84 - implemented instruments database
85 - added support for escape sequences to the instruments database
86 - added highly experimental support for on-the-fly instrument editing
87 within the sampler's process (by using instrument editor plugins),
88 you'll notice the new "Registered instrument editors:" message on
89 startup, added a new LSCP command:
90 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
91 to spawn a matching instrument editor for the instrument on the
92 given sampler channel, the plugin path can be overridden at compile
93 time with ./configure --enable-plugin-dir=/some/dir
94 - added experimental code for synchronizing instrument editors hosted
95 in the sampler's process to safely edit instruments while playing
96 without a crash (hopefully) by either suspending single regions
97 wherever possible or if unavoidable whole engine(s)
98 - fixed several issues in fundamental "Thread" class: set scheduling
99 policy and priority on thread level, set a minimum stack size for
100 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
101 threads simply inherited properties of starting thread instead of
102 setting their own policy and priority
103 - minor fix in our automatic stack trace mechanism on crashes, the
104 main process did not wait for the stack trace process to finish
105 its output
106 - fixed some minor memory leaks
107 - reenabled assembly features support, at the moment only for
108 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
109 - minor assembly fix in x86 features detection (don't use the PIC
110 register, to avoid relocations in the text segment at runtime)
111 - POSIX callback functions of Thread.h are hidden
112
113 * MIDI driver:
114 - dispatch bank select (MSB and LSB) messages
115
116 * audio driver:
117 - the ALSA audio output driver parameters now reflect the correct
118 parameter value ranges for the respective selected sound card
119 (patch by Till Wimmer, a bit fixed and extended)
120
121 * Gigasampler format engine:
122 - if a filter is used and EG2 finishes before EG1, let the voice
123 die when EG2 has finished (this fixes a problem with clicks and
124 voice starvation for some gigs)
125 - playback is no longer disabled during instrument loading
126 - all notes playing on a channel that changes its instrument keep
127 playing with the old instrument until they get a note off
128 command
129 - EG fix: a release value of zero could cause noises or crash
130 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
131 - EG fine tuning: when attack is zero the EG starts at a level
132 above max sustain level, which means that there is a decay phase
133 even if sustain is 100%
134 - more EG fixes: the level could sometimes go below zero and cause
135 noises or crashes
136 - minor fix of EGDecay (patch by Toshi Nagata)
137 - fixed compiler error when --enable-override-filter-type was
138 supplied to the configure script (fixes #46)
139 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
140 instead of a fix value
141 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
142 127 (solo mode) only kill voices if the respective mode really
143 changed
144
145 * LSCP server:
146 - fixed compile time error for old Bison versions
147 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
148 - parser now supports extended ASCII character set
149 (up to ASCII code 255, i.e. includes now umlauts and accents)
150 - filename arguments in LSCP commands now allow to use escape
151 sequences, that is directly literal as one of: \', \", \\, \n, \r,
152 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
153 code value like \xf2) (fixes bug #24)
154 - the following LSCP commands now also support escape sequences for at
155 least one of their text-based parameters (i.e. name, description):
156 "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
157 "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
158 "SET DB_INSTRUMENT_DIRECTORY NAME",
159 "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
160 "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
161 "FIND DB_INSTRUMENT_DIRECTORIES"
162 - returns verbose syntax errors (line and column where syntax error
163 occured, the unexpected character and the actually expected, possible
164 character(s), the latter only if less than 5 possibilities)
165 - made sure that LSCP syntax is not affected by gigedit locale
166 settings
167 - bugfix regarding strings parameter lists: all comma separated lists
168 of strings were treated as being one string containing commas
169 (fixes #57)
170
171 * Bug fixes:
172 - fixed crash occurring on certain LSCP scripts (Bug 39)
173 - another thread safety fix for lscp "load engine" and "set
174 channel audio output device"
175 - fixed a crash which occurs when reassigning the same engine
176 on a sampler channel with connected MIDI device
177 - fixed a crash which occurs when changing the number of ports of a MIDI
178 device connected to a sampler channel to number less then or equal
179 to the index of the port to which the sampler channel is connected.
180 - The previous bindings were not been disconnected when altering
181 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
182 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
183 - The active stream/voice count statistic was incorrect.
184 - notification events were not been sent for some sampler
185 channel changes
186 - added default min and max values to restrict the number of allowed
187 audio output channels and MIDI input ports
188 - the connection to the PCM interface is now closed when destroying
189 an audio output device
190 - files with slash in their path or filename could not be loaded
191
192 * test cases:
193 - updated and fixed (haven't been touched in a while)
194
195 Version 0.4.0 (24 November 2006)
196
197 * packaging changes:
198 - changed deprecated copyright attribute to license; added ldconfig
199 to post-(un)install steps; added devel package for liblinuxsampler;
200 to linuxsampler.spec (RPM)
201 - install necessary development header files for allowing 3rd party
202 applications to link against liblinuxsampler
203 - liblinuxsampler's API documentation can be generated with 'make docs'
204 (Doxygen required)
205 - added benchmark to automatically detect the best triangle LFO
206 implementation (currently either an integer math solution or a
207 di-harmonic approximation), automatic detection can be overriden
208 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
209 configure script argument though (mandatory for cross-compilation)
210 - do not automatically pick optimized gcc flags if the user already
211 provided some on his own (as CXXFLAGS)
212 - added compile time option to disable processing of All-Notes-Off MIDI
213 messages
214 - added compile time options to allow disabling the various audio and
215 MIDI drivers
216 - fixed automatic GCC CPU switch detection on PPC
217 (patch by Ebrahim Mayat)
218
219 * Gigasampler format engine:
220 - extensive synthesis optimization
221 (reimplementation of EGs and LFO(s), removed synthesis parameter
222 prerendering and the synthesis parameter matrix in general, splitting
223 each audio fragment into subfragments now where each subfragment uses
224 constant pitch and filter coefficients. The volume coefficient is
225 linearly interpolated inside a subfragment, unless
226 --disable-interpolate-volume is set.)
227 - fine tuning of the EG modulation parameters
228 - improved filter cutoff calculation by adding support for the
229 following gig parameters: Cutoff freq (used when no cutoff
230 controller is defined), Control invert, Minimum cutoff, Velocity
231 curve and Velocity range. The keyboard tracking now scales
232 cutoff frequency instead of resonance.
233 - added support for gig parameter Resonance.
234 - fixed bug in sysex handling (patch by Juan Linietsky)
235 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
236 which can be overridden with --enable-global-attenuation
237 - EG fixes: made the length of "attack hold" stage more
238 accurate. Release stage can now start before attack stage
239 ends. Cancel release didn't work when sustain was zero. Attack
240 time now has a minimal value to prevent clicks.
241 - fixed pitch changes larger than one octave
242 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
243 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
244 all modes can be altered via standard GM messages, that is CC5 for
245 altering portamento time, CC65 for enabling / disabling portamento
246 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
247 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
248 parameter) and crossfade
249 - added support for the "attenuation controller threshold" gig
250 parameter
251 - added smoothing of volume changes caused by control change
252 messages
253 - sample loop parameters are now taken from the DimensionRegion
254 instead of the wave chunk
255 - fixed keyswitching for v3 gigs with a number of keyswitch splits
256 not equal to a power of two
257 - reimplementation of the filter algorithm. The new filter is more
258 accurate and supports all gig filter types, including bandreject
259 and lowpass turbo.
260 - real support for 24 bit samples - samples are not truncated to
261 16 bits anymore
262 - support for aftertouch (channel pressure, not polyphonic
263 aftertouch)
264 - LFO1 behaviour fixed (dampening from max volume instead of
265 amplifying from 0)
266
267 * LSCP server:
268 - fixed application exit on broken pipe error (fixes bug #20)
269 - fixed the notification messages delay due to lack of
270 network activity (fixes bug #26)
271 - fixed parser bug which occured on space(s) within device parameters
272 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
273
274 * audio driver:
275 - added aRts audio output driver (by no means RT safe)
276
277 * MIDI driver:
278 - fixed legacy sysex code which caused dispatching of MIDI SysEx
279 messages several times instead of once
280 - API extension for MIDI drivers which already supply exact time stamps
281 for events (i.e. for offline rendering based MIDI drivers)
282 - added checks for bad MIDI data
283
284 * linuxsampler application:
285 - show available sampler engine types on startup
286
287 * general changes:
288 - support for muting sampler channels and solo mode of the same, two new
289 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
290 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
291 introduced for this, the behavior is the same like on a mixer console
292 (patch by Grigor Iliev, a bit adjusted). Also added configure option
293 --enable-process-muted-channels which can be used to enable the
294 processing of muted channels.
295 - support for sostenuto pedal
296 - support for monitoring the total number of active voices
297 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
298 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
299 - fixed some memory management errors
300 - fixed some concurrency problems that could lead to crashes when
301 LSCP commands were executed
302 - fixed crash when instrument loading failed previously on the same
303 sampler channel (fixes bug #36)
304
305 Version 0.3.3 (15 July 2005)
306
307 * packaging changes:
308 - fixed compilation with gcc 4.0
309
310 * Gigasampler format engine:
311 - LFO preprocessing was performed even though the respective LFO was
312 disabled by the instrument patch (minor efficiency fix)
313 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
314 for volume ramp downs in the same fragment (needed for current voice
315 stealing implementation) then simply inform the user with a warning
316 about possible click sounds and reduce the volume ramp down
317 appropriately instead of cancelling the audio device connection
318
319 Version 0.3.2 (24 June 2005)
320
321 * packaging changes:
322 - updated autotools build files to compile on OS X
323 (conditional compilation of CoreMIDI and MidiShare drivers)
324 - hand-crafted assembly optimization code can be disabled with
325 './configure --disable-asm' (definitely not recommended)
326 - fixed 'make dist' rule to include all necessary files
327 - require automake (>= 1.5) for 'make -f Makefile.cvs'
328 (due to 'dist-bzip2' automake option)
329
330 * Gigasampler format engine:
331 - support for the gig parameters for "release velocity response" curves
332 - fine tuning of the EGADSR envelope
333 - volume of release triggered samples now depends on note-on velocity,
334 note length and gig parameter "release trigger decay" instead of
335 note-off velocity.
336 - revised voice stealing
337 (fixes crash and endless loop caused by voice stealing)
338 - don't reset scale tuning on instrument or audio output device change
339 - handle key group conflicts right at the beginning of each fragment
340 instead of when the respective voice is actually launched
341 (fixes undefined behavior if stolen voices belonged to a key group -
342 this case was followed by a "killed voice survived" error message)
343 - fixed minor issue with null/silence samples
344 (those stole voices even though they don't need a voice at all which
345 resulted in "voice stealing didn't work out" messages)
346 - don't reset volume, pan, pitch and MIDI controller values on
347 instrument or audio output device change
348
349 * LSCP server:
350 - fixed some crashes (patch by Grigor Iliev, fixes #19)
351 - fixed LSCP event "CHANNEL_INFO" notification
352 (e.g. did not notify on volume changes or MIDI program change events)
353
354 * linuxsampler application:
355 - added command line parameters --lscp-addr and --lscp-port to override
356 default IP address and port of LSCP server
357
358 Version 0.3.1 (24 May 2005)
359
360 * initial release

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