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Revision 1424 - (hide annotations) (download)
Sun Oct 14 22:00:17 2007 UTC (12 years, 11 months ago) by schoenebeck
File size: 17080 byte(s)
* code cleanup:
- global.h now only covers global definitions that are needed for the C++
  API header files, all implementation internal global definitions are now
  in global_private.h
- atomic.h is not exposed to the C++ API anymore (replaced the references
  in SynchronizedConfig.h for this with local definitions)
- no need to include config.h anymore for using LS's API header files
- DB instruments classes are not exposed to the C++ API
- POSIX callback functions of Thread.h are hidden
- the (optional) gig Engine benchmark compiles again
- updated Doxyfile.in
- fixed warnings in API doc generation
* preparations for release 0.5.0

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

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