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Revision 1485 - (show annotations) (download)
Thu Nov 15 23:35:45 2007 UTC (16 years, 4 months ago) by senoner
File size: 18379 byte(s)
* win32 port, work in progress:
* added MME MIDI Input driver
* Resampler.h, gig/Synthesizer.h:
* changed return type of getSample() from int to int32_t

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

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