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Revision 1233 - (hide annotations) (download)
Mon Jun 11 13:42:21 2007 UTC (16 years, 8 months ago) by schoenebeck
File size: 13185 byte(s)
* minor fix in our automatic stack trace mechanism on crashes, the
  main process did not wait for the stack trace process to finish
  and thus killed the whole application before the stack trace was
  completely shown on the console

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 schoenebeck 1212 - added highly experimental support for on-the-fly instrument editing
45     within the sampler's process (by using instrument editor plugins),
46     you'll notice the new "Registered instrument editors:" message on
47     startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
48     to spawn a matching instrument editor for the instrument on the
49     given sampler channel, the plugin path can be overridden at compile
50     time with ./configure --enable-plugin-dir=/some/dir
51 schoenebeck 1221 - fixed several issues in fundamental "Thread" class: set scheduling
52     policy and priority on thread level, set a minimum stack size for
53     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
54     threads simply inherited properties of starting thread instead of
55     setting their own policy and priority
56 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
57     main process did not wait for the stack trace process to finish
58     its output
59 schoenebeck 947
60     * MIDI driver:
61     - dispatch bank select (MSB and LSB) messages
62    
63 schoenebeck 1049 * audio driver:
64     - the ALSA audio output driver parameters now reflect the correct
65     parameter value ranges for the respective selected sound card
66     (patch by Till Wimmer, a bit fixed and extended)
67    
68 persson 951 * Gigasampler format engine:
69     - if a filter is used and EG2 finishes before EG1, let the voice
70     die when EG2 has finished (this fixes a problem with clicks and
71     voice starvation for some gigs)
72 persson 1038 - playback is no longer disabled during instrument loading
73     - all notes playing on a channel that changes its instrument keep
74     playing with the old instrument until they get a note off
75     command
76 persson 1039 - EG fix: a release value of zero could cause noises or crash
77 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
78 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
79     above max sustain level, which means that there is a decay phase
80     even if sustain is 100%
81 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
82     noises or crashes
83 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
84 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
85     supplied to the configure script (fixes #46)
86 persson 951
87 iliev 959 * Bug fixes:
88     - fixed crash occurring on certain LSCP scripts (Bug 39)
89 persson 1038 - another thread safety fix for lscp "load engine" and "set
90     channel audio output device"
91 iliev 959
92 schoenebeck 1221 * test cases:
93     - updated and fixed (haven't been touched in a while)
94    
95 schoenebeck 937 Version 0.4.0 (24 November 2006)
96 persson 696
97 schoenebeck 697 * packaging changes:
98 capela 868 - changed deprecated copyright attribute to license; added ldconfig
99     to post-(un)install steps; added devel package for liblinuxsampler;
100     to linuxsampler.spec (RPM)
101 schoenebeck 697 - install necessary development header files for allowing 3rd party
102     applications to link against liblinuxsampler
103     - liblinuxsampler's API documentation can be generated with 'make docs'
104     (Doxygen required)
105 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
106     implementation (currently either an integer math solution or a
107     di-harmonic approximation), automatic detection can be overriden
108     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
109     configure script argument though (mandatory for cross-compilation)
110 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
111     provided some on his own (as CXXFLAGS)
112 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
113     messages
114 schoenebeck 852 - added compile time options to allow disabling the various audio and
115     MIDI drivers
116 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
117     (patch by Ebrahim Mayat)
118 schoenebeck 697
119 persson 696 * Gigasampler format engine:
120 schoenebeck 738 - extensive synthesis optimization
121     (reimplementation of EGs and LFO(s), removed synthesis parameter
122     prerendering and the synthesis parameter matrix in general, splitting
123     each audio fragment into subfragments now where each subfragment uses
124 persson 830 constant pitch and filter coefficients. The volume coefficient is
125     linearly interpolated inside a subfragment, unless
126     --disable-interpolate-volume is set.)
127 persson 696 - fine tuning of the EG modulation parameters
128 persson 729 - improved filter cutoff calculation by adding support for the
129     following gig parameters: Cutoff freq (used when no cutoff
130     controller is defined), Control invert, Minimum cutoff, Velocity
131 persson 791 curve and Velocity range. The keyboard tracking now scales
132     cutoff frequency instead of resonance.
133 persson 877 - added support for gig parameter Resonance.
134 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
135 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
136     which can be overridden with --enable-global-attenuation
137 persson 783 - EG fixes: made the length of "attack hold" stage more
138     accurate. Release stage can now start before attack stage
139 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
140     time now has a minimal value to prevent clicks.
141 persson 799 - fixed pitch changes larger than one octave
142 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
143     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
144     all modes can be altered via standard GM messages, that is CC5 for
145     altering portamento time, CC65 for enabling / disabling portamento
146     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
147 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
148     parameter) and crossfade
149 persson 831 - added support for the "attenuation controller threshold" gig
150     parameter
151 persson 832 - added smoothing of volume changes caused by control change
152     messages
153 persson 865 - sample loop parameters are now taken from the DimensionRegion
154     instead of the wave chunk
155     - fixed keyswitching for v3 gigs with a number of keyswitch splits
156     not equal to a power of two
157 persson 877 - reimplementation of the filter algorithm. The new filter is more
158     accurate and supports all gig filter types, including bandreject
159     and lowpass turbo.
160 persson 903 - real support for 24 bit samples - samples are not truncated to
161     16 bits anymore
162     - support for aftertouch (channel pressure, not polyphonic
163     aftertouch)
164 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
165     amplifying from 0)
166 persson 696
167 schoenebeck 711 * LSCP server:
168     - fixed application exit on broken pipe error (fixes bug #20)
169 iliev 793 - fixed the notification messages delay due to lack of
170     network activity (fixes bug #26)
171 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
172     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
173 schoenebeck 711
174 schoenebeck 838 * audio driver:
175     - added aRts audio output driver (by no means RT safe)
176    
177 schoenebeck 775 * MIDI driver:
178     - fixed legacy sysex code which caused dispatching of MIDI SysEx
179     messages several times instead of once
180 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
181     for events (i.e. for offline rendering based MIDI drivers)
182 persson 922 - added checks for bad MIDI data
183 schoenebeck 775
184 schoenebeck 900 * linuxsampler application:
185     - show available sampler engine types on startup
186    
187 schoenebeck 705 * general changes:
188     - support for muting sampler channels and solo mode of the same, two new
189     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
190     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
191     introduced for this, the behavior is the same like on a mixer console
192 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
193     --enable-process-muted-channels which can be used to enable the
194     processing of muted channels.
195 iliev 777 - support for sostenuto pedal
196 iliev 779 - support for monitoring the total number of active voices
197 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
198     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
199 persson 835 - fixed some memory management errors
200 persson 841 - fixed some concurrency problems that could lead to crashes when
201     LSCP commands were executed
202 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
203     sampler channel (fixes bug #36)
204 schoenebeck 705
205 schoenebeck 692 Version 0.3.3 (15 July 2005)
206 schoenebeck 686
207     * packaging changes:
208     - fixed compilation with gcc 4.0
209    
210 schoenebeck 687 * Gigasampler format engine:
211     - LFO preprocessing was performed even though the respective LFO was
212     disabled by the instrument patch (minor efficiency fix)
213 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
214     for volume ramp downs in the same fragment (needed for current voice
215     stealing implementation) then simply inform the user with a warning
216     about possible click sounds and reduce the volume ramp down
217     appropriately instead of cancelling the audio device connection
218 schoenebeck 687
219 schoenebeck 677 Version 0.3.2 (24 June 2005)
220 schoenebeck 609
221     * packaging changes:
222     - updated autotools build files to compile on OS X
223     (conditional compilation of CoreMIDI and MidiShare drivers)
224 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
225     './configure --disable-asm' (definitely not recommended)
226 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
227     - require automake (>= 1.5) for 'make -f Makefile.cvs'
228     (due to 'dist-bzip2' automake option)
229 schoenebeck 649
230     * Gigasampler format engine:
231     - support for the gig parameters for "release velocity response" curves
232     - fine tuning of the EGADSR envelope
233     - volume of release triggered samples now depends on note-on velocity,
234     note length and gig parameter "release trigger decay" instead of
235     note-off velocity.
236 schoenebeck 663 - revised voice stealing
237     (fixes crash and endless loop caused by voice stealing)
238 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
239 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
240     instead of when the respective voice is actually launched
241     (fixes undefined behavior if stolen voices belonged to a key group -
242     this case was followed by a "killed voice survived" error message)
243 schoenebeck 669 - fixed minor issue with null/silence samples
244     (those stole voices even though they don't need a voice at all which
245     resulted in "voice stealing didn't work out" messages)
246 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
247     instrument or audio output device change
248 schoenebeck 654
249 schoenebeck 620 * LSCP server:
250 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
251 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
252 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
253 schoenebeck 609
254 schoenebeck 668 * linuxsampler application:
255     - added command line parameters --lscp-addr and --lscp-port to override
256     default IP address and port of LSCP server
257    
258 schoenebeck 579 Version 0.3.1 (24 May 2005)
259    
260     * initial release

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