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Revision 1534 - (hide annotations) (download)
Sun Dec 2 19:07:17 2007 UTC (12 years, 9 months ago) by persson
File size: 19007 byte(s)
* made signal handling a bit more robust

1 schoenebeck 1454 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 senoner 1502 - added autoconf checks for MS Windows
8 schoenebeck 1454
9 persson 1455 * general changes:
10     - bugfix: the thread used by an editor plugin didn't die when the
11     editor closed
12 persson 1534 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
13     out all the space. operator--() did not apply size_mask after
14     decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
15     order to avoid problems with the _NonVolatileReader functions.
16     - bugfix: Stream.h: added a missing divide by BytesPerSample in
17     GetWriteSpace(). Since this function is currently only used in
18     the stream's qsort() compare function, it didn't trigger any
19     bugs.
20     - Resampler.h, Synthesizer.h: cubic interpolation now works in
21     24bit mode too. Faster method to read 24bit words on little
22     endian machines (x86): replaced 3 byte reads + shifts with a 1
23     unaligned 32bit read and shift
24     - experimental support for MS Windows (MIDI input via MME, AUDIO
25     output via ASIO)
26     - made handling of SIGINT signal (Ctrl-C) a bit more robust
27 persson 1455
28 senoner 1500 * AUDIO driver:
29 persson 1534 - added Windows ASIO low latency audio driver
30 senoner 1500
31 senoner 1485 * MIDI driver:
32 schoenebeck 1495 - added MME Windows MIDI driver
33 senoner 1485
34 schoenebeck 1471 * LSCP server:
35     - added support for Windows style path / filenames, however with
36     forward slash path separators instead of backslash
37     (i.e. "C:/foo/bar.gig")
38 schoenebeck 1495 - allow naughty liblscp to send non-string device parameters within
39     apostrophes as well
40 schoenebeck 1525 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
41     "LIST FILE INSTRUMENTS <file>" and
42     "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
43     about an arbitrary instrument file on the system where the sampler is
44     running on
45 schoenebeck 1471
46 schoenebeck 1424 Version 0.5.0 (15 October 2007)
47 schoenebeck 947
48 schoenebeck 1065 * packaging changes:
49 schoenebeck 1212 - config.h is not going to be installed along with liblinuxsampler's
50     API header files anymore
51 schoenebeck 1065 - only the API relevant header (and source) files will be exported to
52     the Doxygen API documentation (explicitly listed in Doxyfile.in)
53 schoenebeck 1175 - added completely new XCode project files for Mac OSX which is now
54     capable to execute our autoconf environment, thus no need anymore
55     to maintain the compile time configuration file (osx/version.h) for
56     OSX manually (patch by Toshi Nagata)
57 schoenebeck 1360 - fixed buggy boolean --enable-foo / --disable-foo configure script
58     parameters
59 schoenebeck 1424 - global.h now only covers global definitions that are needed for the
60     C++ API header files, all implementation internal global definitions
61     are now in global_private.h
62     - atomic.h is not exposed to the C++ API anymore
63     - no need to include config.h anymore for using LS's API header files
64     - fixed warnings in API doc generation
65 schoenebeck 1065
66 schoenebeck 947 * general changes:
67     - replaced the old, confusing MIDI program change mechanism by a
68     flexible MIDI instrument mapper which allows to map arbitrary
69 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
70 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
71     loaded on the respective channel when such MIDI program change
72     messages arrive, beside that, each entry allows to define a life-time
73     strategy for the instrument, so the user can define whether the
74     instrument should i.e. be permanently loaded (to be able to switch
75     quickly among sounds) or i.e. loaded just on demand when the
76     respective program change arrives (to safe RAM space), as well as a
77     global volume factor for each entry, so the user can adjust the volume
78     dynamic of his mapped instrument collection without having to modify
79 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
80     MIDI instrument maps and assign each sampler channel individually
81     a certain map, so that i.e. separation of normal instruments and
82     drumkits is possible
83 iliev 1108 - new notification events for tracking changes to audio/MIDI devices,
84     MIDI instrument maps, MIDI instruments, FX sends, global volume.
85 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
86     due to a constant size RingBuffer FIFO which is now replaced by a
87     dynamic (unlimited) size std::list FIFO
88 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
89     output channels for being processed by external effect processors
90     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
91     controllers
92 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
93 iliev 1130 - Implemented new, improved notification system
94 schoenebeck 1149 - fixed compilation errors regarding OSX
95     (patch by Toshi Nagata)
96 iliev 1161 - implemented instruments database
97 iliev 1345 - added support for escape sequences to the instruments database
98 schoenebeck 1212 - added highly experimental support for on-the-fly instrument editing
99     within the sampler's process (by using instrument editor plugins),
100     you'll notice the new "Registered instrument editors:" message on
101 schoenebeck 1407 startup, added a new LSCP command:
102     "EDIT CHANNEL INSTRUMENT <sampler-channel>"
103 schoenebeck 1212 to spawn a matching instrument editor for the instrument on the
104     given sampler channel, the plugin path can be overridden at compile
105     time with ./configure --enable-plugin-dir=/some/dir
106 schoenebeck 1321 - added experimental code for synchronizing instrument editors hosted
107     in the sampler's process to safely edit instruments while playing
108     without a crash (hopefully) by either suspending single regions
109     wherever possible or if unavoidable whole engine(s)
110 schoenebeck 1221 - fixed several issues in fundamental "Thread" class: set scheduling
111     policy and priority on thread level, set a minimum stack size for
112     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
113     threads simply inherited properties of starting thread instead of
114     setting their own policy and priority
115 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
116     main process did not wait for the stack trace process to finish
117     its output
118 persson 1248 - fixed some minor memory leaks
119 schoenebeck 1259 - reenabled assembly features support, at the moment only for
120     enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
121 schoenebeck 1314 - minor assembly fix in x86 features detection (don't use the PIC
122     register, to avoid relocations in the text segment at runtime)
123 schoenebeck 1424 - POSIX callback functions of Thread.h are hidden
124 schoenebeck 947
125     * MIDI driver:
126     - dispatch bank select (MSB and LSB) messages
127    
128 schoenebeck 1049 * audio driver:
129     - the ALSA audio output driver parameters now reflect the correct
130     parameter value ranges for the respective selected sound card
131     (patch by Till Wimmer, a bit fixed and extended)
132    
133 persson 951 * Gigasampler format engine:
134     - if a filter is used and EG2 finishes before EG1, let the voice
135     die when EG2 has finished (this fixes a problem with clicks and
136     voice starvation for some gigs)
137 persson 1038 - playback is no longer disabled during instrument loading
138     - all notes playing on a channel that changes its instrument keep
139     playing with the old instrument until they get a note off
140     command
141 persson 1039 - EG fix: a release value of zero could cause noises or crash
142 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
143 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
144     above max sustain level, which means that there is a decay phase
145     even if sustain is 100%
146 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
147     noises or crashes
148 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
149 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
150     supplied to the configure script (fixes #46)
151 schoenebeck 1321 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
152     instead of a fix value
153 schoenebeck 1348 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
154     127 (solo mode) only kill voices if the respective mode really
155     changed
156 persson 951
157 schoenebeck 1244 * LSCP server:
158     - fixed compile time error for old Bison versions
159     (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
160 schoenebeck 1245 - parser now supports extended ASCII character set
161     (up to ASCII code 255, i.e. includes now umlauts and accents)
162     - filename arguments in LSCP commands now allow to use escape
163     sequences, that is directly literal as one of: \', \", \\, \n, \r,
164     \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
165     code value like \xf2) (fixes bug #24)
166 schoenebeck 1389 - the following LSCP commands now also support escape sequences for at
167     least one of their text-based parameters (i.e. name, description):
168     "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
169     "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
170     "SET DB_INSTRUMENT_DIRECTORY NAME",
171     "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
172     "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
173     "FIND DB_INSTRUMENT_DIRECTORIES"
174 schoenebeck 1252 - returns verbose syntax errors (line and column where syntax error
175     occured, the unexpected character and the actually expected, possible
176     character(s), the latter only if less than 5 possibilities)
177 persson 1349 - made sure that LSCP syntax is not affected by gigedit locale
178     settings
179 schoenebeck 1379 - bugfix regarding strings parameter lists: all comma separated lists
180     of strings were treated as being one string containing commas
181     (fixes #57)
182 schoenebeck 1244
183 iliev 959 * Bug fixes:
184     - fixed crash occurring on certain LSCP scripts (Bug 39)
185 persson 1038 - another thread safety fix for lscp "load engine" and "set
186     channel audio output device"
187 iliev 1283 - fixed a crash which occurs when reassigning the same engine
188     on a sampler channel with connected MIDI device
189 iliev 1295 - fixed a crash which occurs when changing the number of ports of a MIDI
190     device connected to a sampler channel to number less then or equal
191     to the index of the port to which the sampler channel is connected.
192 iliev 1296 - The previous bindings were not been disconnected when altering
193     the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
194     unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
195 iliev 1297 - The active stream/voice count statistic was incorrect.
196 iliev 1298 - notification events were not been sent for some sampler
197     channel changes
198 iliev 1305 - added default min and max values to restrict the number of allowed
199     audio output channels and MIDI input ports
200 iliev 1306 - the connection to the PCM interface is now closed when destroying
201     an audio output device
202 schoenebeck 1332 - files with slash in their path or filename could not be loaded
203 iliev 959
204 schoenebeck 1221 * test cases:
205     - updated and fixed (haven't been touched in a while)
206    
207 schoenebeck 937 Version 0.4.0 (24 November 2006)
208 persson 696
209 schoenebeck 697 * packaging changes:
210 capela 868 - changed deprecated copyright attribute to license; added ldconfig
211     to post-(un)install steps; added devel package for liblinuxsampler;
212     to linuxsampler.spec (RPM)
213 schoenebeck 697 - install necessary development header files for allowing 3rd party
214     applications to link against liblinuxsampler
215     - liblinuxsampler's API documentation can be generated with 'make docs'
216     (Doxygen required)
217 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
218     implementation (currently either an integer math solution or a
219     di-harmonic approximation), automatic detection can be overriden
220     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
221     configure script argument though (mandatory for cross-compilation)
222 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
223     provided some on his own (as CXXFLAGS)
224 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
225     messages
226 schoenebeck 852 - added compile time options to allow disabling the various audio and
227     MIDI drivers
228 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
229     (patch by Ebrahim Mayat)
230 schoenebeck 697
231 persson 696 * Gigasampler format engine:
232 schoenebeck 738 - extensive synthesis optimization
233     (reimplementation of EGs and LFO(s), removed synthesis parameter
234     prerendering and the synthesis parameter matrix in general, splitting
235     each audio fragment into subfragments now where each subfragment uses
236 persson 830 constant pitch and filter coefficients. The volume coefficient is
237     linearly interpolated inside a subfragment, unless
238     --disable-interpolate-volume is set.)
239 persson 696 - fine tuning of the EG modulation parameters
240 persson 729 - improved filter cutoff calculation by adding support for the
241     following gig parameters: Cutoff freq (used when no cutoff
242     controller is defined), Control invert, Minimum cutoff, Velocity
243 persson 791 curve and Velocity range. The keyboard tracking now scales
244     cutoff frequency instead of resonance.
245 persson 877 - added support for gig parameter Resonance.
246 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
247 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
248     which can be overridden with --enable-global-attenuation
249 persson 783 - EG fixes: made the length of "attack hold" stage more
250     accurate. Release stage can now start before attack stage
251 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
252     time now has a minimal value to prevent clicks.
253 persson 799 - fixed pitch changes larger than one octave
254 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
255     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
256     all modes can be altered via standard GM messages, that is CC5 for
257     altering portamento time, CC65 for enabling / disabling portamento
258     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
259 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
260     parameter) and crossfade
261 persson 831 - added support for the "attenuation controller threshold" gig
262     parameter
263 persson 832 - added smoothing of volume changes caused by control change
264     messages
265 persson 865 - sample loop parameters are now taken from the DimensionRegion
266     instead of the wave chunk
267     - fixed keyswitching for v3 gigs with a number of keyswitch splits
268     not equal to a power of two
269 persson 877 - reimplementation of the filter algorithm. The new filter is more
270     accurate and supports all gig filter types, including bandreject
271     and lowpass turbo.
272 persson 903 - real support for 24 bit samples - samples are not truncated to
273     16 bits anymore
274     - support for aftertouch (channel pressure, not polyphonic
275     aftertouch)
276 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
277     amplifying from 0)
278 persson 696
279 schoenebeck 711 * LSCP server:
280     - fixed application exit on broken pipe error (fixes bug #20)
281 iliev 793 - fixed the notification messages delay due to lack of
282     network activity (fixes bug #26)
283 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
284     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
285 schoenebeck 711
286 schoenebeck 838 * audio driver:
287     - added aRts audio output driver (by no means RT safe)
288    
289 schoenebeck 775 * MIDI driver:
290     - fixed legacy sysex code which caused dispatching of MIDI SysEx
291     messages several times instead of once
292 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
293     for events (i.e. for offline rendering based MIDI drivers)
294 persson 922 - added checks for bad MIDI data
295 schoenebeck 775
296 schoenebeck 900 * linuxsampler application:
297     - show available sampler engine types on startup
298    
299 schoenebeck 705 * general changes:
300     - support for muting sampler channels and solo mode of the same, two new
301     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
302     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
303     introduced for this, the behavior is the same like on a mixer console
304 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
305     --enable-process-muted-channels which can be used to enable the
306     processing of muted channels.
307 iliev 777 - support for sostenuto pedal
308 iliev 779 - support for monitoring the total number of active voices
309 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
310     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
311 persson 835 - fixed some memory management errors
312 persson 841 - fixed some concurrency problems that could lead to crashes when
313     LSCP commands were executed
314 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
315     sampler channel (fixes bug #36)
316 schoenebeck 705
317 schoenebeck 692 Version 0.3.3 (15 July 2005)
318 schoenebeck 686
319     * packaging changes:
320     - fixed compilation with gcc 4.0
321    
322 schoenebeck 687 * Gigasampler format engine:
323     - LFO preprocessing was performed even though the respective LFO was
324     disabled by the instrument patch (minor efficiency fix)
325 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
326     for volume ramp downs in the same fragment (needed for current voice
327     stealing implementation) then simply inform the user with a warning
328     about possible click sounds and reduce the volume ramp down
329     appropriately instead of cancelling the audio device connection
330 schoenebeck 687
331 schoenebeck 677 Version 0.3.2 (24 June 2005)
332 schoenebeck 609
333     * packaging changes:
334     - updated autotools build files to compile on OS X
335     (conditional compilation of CoreMIDI and MidiShare drivers)
336 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
337     './configure --disable-asm' (definitely not recommended)
338 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
339     - require automake (>= 1.5) for 'make -f Makefile.cvs'
340     (due to 'dist-bzip2' automake option)
341 schoenebeck 649
342     * Gigasampler format engine:
343     - support for the gig parameters for "release velocity response" curves
344     - fine tuning of the EGADSR envelope
345     - volume of release triggered samples now depends on note-on velocity,
346     note length and gig parameter "release trigger decay" instead of
347     note-off velocity.
348 schoenebeck 663 - revised voice stealing
349     (fixes crash and endless loop caused by voice stealing)
350 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
351 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
352     instead of when the respective voice is actually launched
353     (fixes undefined behavior if stolen voices belonged to a key group -
354     this case was followed by a "killed voice survived" error message)
355 schoenebeck 669 - fixed minor issue with null/silence samples
356     (those stole voices even though they don't need a voice at all which
357     resulted in "voice stealing didn't work out" messages)
358 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
359     instrument or audio output device change
360 schoenebeck 654
361 schoenebeck 620 * LSCP server:
362 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
363 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
364 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
365 schoenebeck 609
366 schoenebeck 668 * linuxsampler application:
367     - added command line parameters --lscp-addr and --lscp-port to override
368     default IP address and port of LSCP server
369    
370 schoenebeck 579 Version 0.3.1 (24 May 2005)
371    
372     * initial release

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