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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1479 - (show annotations) (download)
Wed Nov 14 15:06:48 2007 UTC (16 years ago) by senoner
File size: 17874 byte(s)
* fixes in Ringbuffer.h:
 - fill_write_space_with_null() did not zero out all the space
 - operator--() did not apply size_mask after decrementing the read_ptr
  (might fix bug #48)
 - DEFAULT_WRAP_ELEMENTS set to 0 in order to avoid problems with
  the _NonVolatileReader functions.

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

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