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Revision 1500 - (show annotations) (download)
Wed Nov 21 00:52:09 2007 UTC (11 years, 10 months ago) by senoner
File size: 18539 byte(s)
* win32 port, work in progress:
 - added ASIO low latency audio output driver
* MME MIDI input driver:
 - fixed number of PORTS to 1 as the win32 MME MIDI API
 allows to connect to only one MIDI port at time,

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 * AUDIO driver:
25 - added Windows ASIO low latency audio driver
26
27 * MIDI driver:
28 - added MME Windows MIDI driver
29
30 * LSCP server:
31 - added support for Windows style path / filenames, however with
32 forward slash path separators instead of backslash
33 (i.e. "C:/foo/bar.gig")
34 - allow naughty liblscp to send non-string device parameters within
35 apostrophes as well
36
37 Version 0.5.0 (15 October 2007)
38
39 * packaging changes:
40 - config.h is not going to be installed along with liblinuxsampler's
41 API header files anymore
42 - only the API relevant header (and source) files will be exported to
43 the Doxygen API documentation (explicitly listed in Doxyfile.in)
44 - added completely new XCode project files for Mac OSX which is now
45 capable to execute our autoconf environment, thus no need anymore
46 to maintain the compile time configuration file (osx/version.h) for
47 OSX manually (patch by Toshi Nagata)
48 - fixed buggy boolean --enable-foo / --disable-foo configure script
49 parameters
50 - global.h now only covers global definitions that are needed for the
51 C++ API header files, all implementation internal global definitions
52 are now in global_private.h
53 - atomic.h is not exposed to the C++ API anymore
54 - no need to include config.h anymore for using LS's API header files
55 - fixed warnings in API doc generation
56
57 * general changes:
58 - replaced the old, confusing MIDI program change mechanism by a
59 flexible MIDI instrument mapper which allows to map arbitrary
60 (MIDI bank, MIDI program) pairs with arbitrary
61 (engine type, instrument file, file index) triplets which will be
62 loaded on the respective channel when such MIDI program change
63 messages arrive, beside that, each entry allows to define a life-time
64 strategy for the instrument, so the user can define whether the
65 instrument should i.e. be permanently loaded (to be able to switch
66 quickly among sounds) or i.e. loaded just on demand when the
67 respective program change arrives (to safe RAM space), as well as a
68 global volume factor for each entry, so the user can adjust the volume
69 dynamic of his mapped instrument collection without having to modify
70 the instrument files, also one can manage arbitrary amount of such
71 MIDI instrument maps and assign each sampler channel individually
72 a certain map, so that i.e. separation of normal instruments and
73 drumkits is possible
74 - new notification events for tracking changes to audio/MIDI devices,
75 MIDI instrument maps, MIDI instruments, FX sends, global volume.
76 - sampler was limited to load max. 200 instruments in the background
77 due to a constant size RingBuffer FIFO which is now replaced by a
78 dynamic (unlimited) size std::list FIFO
79 - added FX sends, these allow to route audio signals to arbitrary audio
80 output channels for being processed by external effect processors
81 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
82 controllers
83 - global (sampler wide) volume can now be controlled at runtime
84 - Implemented new, improved notification system
85 - fixed compilation errors regarding OSX
86 (patch by Toshi Nagata)
87 - implemented instruments database
88 - added support for escape sequences to the instruments database
89 - added highly experimental support for on-the-fly instrument editing
90 within the sampler's process (by using instrument editor plugins),
91 you'll notice the new "Registered instrument editors:" message on
92 startup, added a new LSCP command:
93 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
94 to spawn a matching instrument editor for the instrument on the
95 given sampler channel, the plugin path can be overridden at compile
96 time with ./configure --enable-plugin-dir=/some/dir
97 - added experimental code for synchronizing instrument editors hosted
98 in the sampler's process to safely edit instruments while playing
99 without a crash (hopefully) by either suspending single regions
100 wherever possible or if unavoidable whole engine(s)
101 - fixed several issues in fundamental "Thread" class: set scheduling
102 policy and priority on thread level, set a minimum stack size for
103 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
104 threads simply inherited properties of starting thread instead of
105 setting their own policy and priority
106 - minor fix in our automatic stack trace mechanism on crashes, the
107 main process did not wait for the stack trace process to finish
108 its output
109 - fixed some minor memory leaks
110 - reenabled assembly features support, at the moment only for
111 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
112 - minor assembly fix in x86 features detection (don't use the PIC
113 register, to avoid relocations in the text segment at runtime)
114 - POSIX callback functions of Thread.h are hidden
115
116 * MIDI driver:
117 - dispatch bank select (MSB and LSB) messages
118
119 * audio driver:
120 - the ALSA audio output driver parameters now reflect the correct
121 parameter value ranges for the respective selected sound card
122 (patch by Till Wimmer, a bit fixed and extended)
123
124 * Gigasampler format engine:
125 - if a filter is used and EG2 finishes before EG1, let the voice
126 die when EG2 has finished (this fixes a problem with clicks and
127 voice starvation for some gigs)
128 - playback is no longer disabled during instrument loading
129 - all notes playing on a channel that changes its instrument keep
130 playing with the old instrument until they get a note off
131 command
132 - EG fix: a release value of zero could cause noises or crash
133 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
134 - EG fine tuning: when attack is zero the EG starts at a level
135 above max sustain level, which means that there is a decay phase
136 even if sustain is 100%
137 - more EG fixes: the level could sometimes go below zero and cause
138 noises or crashes
139 - minor fix of EGDecay (patch by Toshi Nagata)
140 - fixed compiler error when --enable-override-filter-type was
141 supplied to the configure script (fixes #46)
142 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
143 instead of a fix value
144 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
145 127 (solo mode) only kill voices if the respective mode really
146 changed
147
148 * LSCP server:
149 - fixed compile time error for old Bison versions
150 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
151 - parser now supports extended ASCII character set
152 (up to ASCII code 255, i.e. includes now umlauts and accents)
153 - filename arguments in LSCP commands now allow to use escape
154 sequences, that is directly literal as one of: \', \", \\, \n, \r,
155 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
156 code value like \xf2) (fixes bug #24)
157 - the following LSCP commands now also support escape sequences for at
158 least one of their text-based parameters (i.e. name, description):
159 "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
160 "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
161 "SET DB_INSTRUMENT_DIRECTORY NAME",
162 "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
163 "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
164 "FIND DB_INSTRUMENT_DIRECTORIES"
165 - returns verbose syntax errors (line and column where syntax error
166 occured, the unexpected character and the actually expected, possible
167 character(s), the latter only if less than 5 possibilities)
168 - made sure that LSCP syntax is not affected by gigedit locale
169 settings
170 - bugfix regarding strings parameter lists: all comma separated lists
171 of strings were treated as being one string containing commas
172 (fixes #57)
173
174 * Bug fixes:
175 - fixed crash occurring on certain LSCP scripts (Bug 39)
176 - another thread safety fix for lscp "load engine" and "set
177 channel audio output device"
178 - fixed a crash which occurs when reassigning the same engine
179 on a sampler channel with connected MIDI device
180 - fixed a crash which occurs when changing the number of ports of a MIDI
181 device connected to a sampler channel to number less then or equal
182 to the index of the port to which the sampler channel is connected.
183 - The previous bindings were not been disconnected when altering
184 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
185 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
186 - The active stream/voice count statistic was incorrect.
187 - notification events were not been sent for some sampler
188 channel changes
189 - added default min and max values to restrict the number of allowed
190 audio output channels and MIDI input ports
191 - the connection to the PCM interface is now closed when destroying
192 an audio output device
193 - files with slash in their path or filename could not be loaded
194
195 * test cases:
196 - updated and fixed (haven't been touched in a while)
197
198 Version 0.4.0 (24 November 2006)
199
200 * packaging changes:
201 - changed deprecated copyright attribute to license; added ldconfig
202 to post-(un)install steps; added devel package for liblinuxsampler;
203 to linuxsampler.spec (RPM)
204 - install necessary development header files for allowing 3rd party
205 applications to link against liblinuxsampler
206 - liblinuxsampler's API documentation can be generated with 'make docs'
207 (Doxygen required)
208 - added benchmark to automatically detect the best triangle LFO
209 implementation (currently either an integer math solution or a
210 di-harmonic approximation), automatic detection can be overriden
211 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
212 configure script argument though (mandatory for cross-compilation)
213 - do not automatically pick optimized gcc flags if the user already
214 provided some on his own (as CXXFLAGS)
215 - added compile time option to disable processing of All-Notes-Off MIDI
216 messages
217 - added compile time options to allow disabling the various audio and
218 MIDI drivers
219 - fixed automatic GCC CPU switch detection on PPC
220 (patch by Ebrahim Mayat)
221
222 * Gigasampler format engine:
223 - extensive synthesis optimization
224 (reimplementation of EGs and LFO(s), removed synthesis parameter
225 prerendering and the synthesis parameter matrix in general, splitting
226 each audio fragment into subfragments now where each subfragment uses
227 constant pitch and filter coefficients. The volume coefficient is
228 linearly interpolated inside a subfragment, unless
229 --disable-interpolate-volume is set.)
230 - fine tuning of the EG modulation parameters
231 - improved filter cutoff calculation by adding support for the
232 following gig parameters: Cutoff freq (used when no cutoff
233 controller is defined), Control invert, Minimum cutoff, Velocity
234 curve and Velocity range. The keyboard tracking now scales
235 cutoff frequency instead of resonance.
236 - added support for gig parameter Resonance.
237 - fixed bug in sysex handling (patch by Juan Linietsky)
238 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
239 which can be overridden with --enable-global-attenuation
240 - EG fixes: made the length of "attack hold" stage more
241 accurate. Release stage can now start before attack stage
242 ends. Cancel release didn't work when sustain was zero. Attack
243 time now has a minimal value to prevent clicks.
244 - fixed pitch changes larger than one octave
245 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
246 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
247 all modes can be altered via standard GM messages, that is CC5 for
248 altering portamento time, CC65 for enabling / disabling portamento
249 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
250 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
251 parameter) and crossfade
252 - added support for the "attenuation controller threshold" gig
253 parameter
254 - added smoothing of volume changes caused by control change
255 messages
256 - sample loop parameters are now taken from the DimensionRegion
257 instead of the wave chunk
258 - fixed keyswitching for v3 gigs with a number of keyswitch splits
259 not equal to a power of two
260 - reimplementation of the filter algorithm. The new filter is more
261 accurate and supports all gig filter types, including bandreject
262 and lowpass turbo.
263 - real support for 24 bit samples - samples are not truncated to
264 16 bits anymore
265 - support for aftertouch (channel pressure, not polyphonic
266 aftertouch)
267 - LFO1 behaviour fixed (dampening from max volume instead of
268 amplifying from 0)
269
270 * LSCP server:
271 - fixed application exit on broken pipe error (fixes bug #20)
272 - fixed the notification messages delay due to lack of
273 network activity (fixes bug #26)
274 - fixed parser bug which occured on space(s) within device parameters
275 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
276
277 * audio driver:
278 - added aRts audio output driver (by no means RT safe)
279
280 * MIDI driver:
281 - fixed legacy sysex code which caused dispatching of MIDI SysEx
282 messages several times instead of once
283 - API extension for MIDI drivers which already supply exact time stamps
284 for events (i.e. for offline rendering based MIDI drivers)
285 - added checks for bad MIDI data
286
287 * linuxsampler application:
288 - show available sampler engine types on startup
289
290 * general changes:
291 - support for muting sampler channels and solo mode of the same, two new
292 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
293 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
294 introduced for this, the behavior is the same like on a mixer console
295 (patch by Grigor Iliev, a bit adjusted). Also added configure option
296 --enable-process-muted-channels which can be used to enable the
297 processing of muted channels.
298 - support for sostenuto pedal
299 - support for monitoring the total number of active voices
300 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
301 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
302 - fixed some memory management errors
303 - fixed some concurrency problems that could lead to crashes when
304 LSCP commands were executed
305 - fixed crash when instrument loading failed previously on the same
306 sampler channel (fixes bug #36)
307
308 Version 0.3.3 (15 July 2005)
309
310 * packaging changes:
311 - fixed compilation with gcc 4.0
312
313 * Gigasampler format engine:
314 - LFO preprocessing was performed even though the respective LFO was
315 disabled by the instrument patch (minor efficiency fix)
316 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
317 for volume ramp downs in the same fragment (needed for current voice
318 stealing implementation) then simply inform the user with a warning
319 about possible click sounds and reduce the volume ramp down
320 appropriately instead of cancelling the audio device connection
321
322 Version 0.3.2 (24 June 2005)
323
324 * packaging changes:
325 - updated autotools build files to compile on OS X
326 (conditional compilation of CoreMIDI and MidiShare drivers)
327 - hand-crafted assembly optimization code can be disabled with
328 './configure --disable-asm' (definitely not recommended)
329 - fixed 'make dist' rule to include all necessary files
330 - require automake (>= 1.5) for 'make -f Makefile.cvs'
331 (due to 'dist-bzip2' automake option)
332
333 * Gigasampler format engine:
334 - support for the gig parameters for "release velocity response" curves
335 - fine tuning of the EGADSR envelope
336 - volume of release triggered samples now depends on note-on velocity,
337 note length and gig parameter "release trigger decay" instead of
338 note-off velocity.
339 - revised voice stealing
340 (fixes crash and endless loop caused by voice stealing)
341 - don't reset scale tuning on instrument or audio output device change
342 - handle key group conflicts right at the beginning of each fragment
343 instead of when the respective voice is actually launched
344 (fixes undefined behavior if stolen voices belonged to a key group -
345 this case was followed by a "killed voice survived" error message)
346 - fixed minor issue with null/silence samples
347 (those stole voices even though they don't need a voice at all which
348 resulted in "voice stealing didn't work out" messages)
349 - don't reset volume, pan, pitch and MIDI controller values on
350 instrument or audio output device change
351
352 * LSCP server:
353 - fixed some crashes (patch by Grigor Iliev, fixes #19)
354 - fixed LSCP event "CHANNEL_INFO" notification
355 (e.g. did not notify on volume changes or MIDI program change events)
356
357 * linuxsampler application:
358 - added command line parameters --lscp-addr and --lscp-port to override
359 default IP address and port of LSCP server
360
361 Version 0.3.1 (24 May 2005)
362
363 * initial release

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