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Revision 1348 - (hide annotations) (download)
Fri Sep 14 14:45:11 2007 UTC (16 years, 6 months ago) by schoenebeck
File size: 15818 byte(s)
* behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
  127 (solo mode) only kill voices if the respective mode really changed

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

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