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revision 2 by schoenebeck, Sat Oct 25 20:15:04 2003 UTC revision 1875 by schoenebeck, Thu Mar 26 13:32:59 2009 UTC
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1    Version CVS HEAD (?)
2    
3      * general changes:
4        - fixed compilation with gcc 4.3
5        - fixes for building with Visual C++
6    
7      * src/gig.cpp, src/gig.h:
8        - added partial support for MIDI rules, only the Controller
9          Triggered rule is supported so far
10        - bugfix: removed another iterator invalidation in DeleteSample
11        - bugfix in Sample::LoadSampleData*(): reset sample read position to
12          sample start before trying to (re)load sample data from file (#82)
13        - bugfix: EG3 depth parameter was not saved correctly
14        - fixed crash which occured when streaming a gig sample with
15          bi-directional (a.k.a. 'pingpong') loop type (fixes #102)
16    
17      * src/RIFF.cpp, src/RIFF.h:
18        - bugfix: saving to the same file after the file size had been
19          increased made the file corrupt (#82)
20        - bugfix: refuse Chunk::Read() in case chunk has just been added, that
21          is not written physically yet (#82)
22        - bugfix: saving to the same file after the file size had been
23          decreased sometimes also made the file corrupt!
24        - bugfix: undefined behavior (e.g. endless loop) when opening zero
25          length files, now throws a RIFF::Exception instead (fixes bug #121)
26        - bugfix: destructor for base class RIFF::Chunk accessed members
27          of derived class RIFF::File, which is bad, and caused crashes
28          when using Visual C++
29    
30    Version 3.2.1 (5 Dec 2007)
31    
32      * src/RIFF.cpp, src/RIFF.h:
33        - avoid Windows to perform unnecessary file stream caching which would
34          decrease disk streaming performance on Windows systems otherwise
35    
36      * src/gig.cpp, src/gig.h:
37        - added File::SetAutoLoad() and File::GetAutoLoad() for allowing
38          applications to retrieve very superficial informations like amount of
39          instruments and their names in a very fast way
40    
41    Version 3.2.0 (14 Oct 2007)
42    
43      * packaging changes:
44        - added Mac OSX XCode project files (patch by Toshi Nagata)
45        - Dev-C++ (win32) project file is automatically updated with
46          the version info from configure.in
47        - the configure script can now be used in Windows with MSYS
48        - added a mainpage for the Doxygen API documentation
49    
50      * src/DLS.cpp, src/DLS.h:
51        - added Sampler::AddSampleLoop() and Sampler::DeleteSampleLoop() methods
52        - fixed write support for big-endian systems
53        - improved handling of fixed length info strings - separate default
54          lengths can be specified for each INFO chunk
55        - added Resource::GenerateDLSID function
56        - write support fix: allow regions without mapped samples
57        - added method SetKeyRange() to the Region class which should be used
58          instead of setting the KeyRange member variable directly
59        - MoveRegion() method of Region class is now private
60        - added SetGain() method to Sampler class
61        - fixed crash when saving a file after a sample loop was added
62    
63      * src/gig.cpp, src/gig.h:
64        - fixed segmentation fault in the gig::File destructor sequence which
65          happened when gig::Group informations were accessed before
66        - fixed write support for big-endian systems
67        - defined lengths of a fixed set of info strings. These strings
68          are saved when the file is written, even if they are empty.
69        - added missing parameter initalizations in sample, region and
70          instrument constructors
71        - clear unused fields when saving samples and regions
72        - fixed write support bugs: v3 dimension limits and chunksize
73          weren't saved, leverage controller of type controlchange
74          couldn't be saved, group name list chunk was placed wrong,
75          dimension region chunks also placed wrong
76        - added initialization of some fixed info strings in file and
77          instrument
78        - write support: files created by libgig will now have the RIFF
79          chunks in correct order
80        - write support: two previously unknown fields in dimension
81          definition are now saved
82        - added constants for gig file versions
83        - write support: the 3crc and einf chunks are now created or
84          updated when a file is saved (3crc contains sample checksums,
85          einf contains file statistics)
86        - write support: DLSID is now generated on the file and the
87          instruments
88        - write support: improved the default values for dimension region
89          parameters
90        - more write support fixes: crossfade parameters were not saved,
91          v3 dimension limits were not correctly initialized and saved
92          when dimensions were added or deleted, v3 wave pool offsets were
93          not saved correctly
94        - write support: 24 bit samples can now be written
95        - write support: version 3 is now the default for new files
96        - more write support fixes: the 3ewg chunk is now bigger for v3,
97          dimension regions without mapped samples are now allowed, 3gnl
98          list in v3 files now always has 128 entries, several parameters
99          where incorrectly saved due to an operator precedence mistake
100        - DeleteSample now removes all references to the deleted sample
101        - AddDimension now copies all parameters from existing dimension
102          regions and also makes sure that the samplechannel dimension is
103          placed first in the list of dimensions.
104        - added method GetParent() to class 'DimensionRegion', which returns its
105          parent Region
106        - fixed Instrument::UpdateRegionKeyTable() method which did not reset
107          unused areas
108        - added various setter methods to DimensionRegion class which take care
109          of updating lookup tables / caches.
110    
111      * src/RIFF.cpp, src/RIFF.h:
112        - added File::SetByteOrder method
113        - Windows fix: saving a new file didn't work
114    
115      * src/gigdump.cpp:
116        - added some missing dimension strings
117    
118    Version 3.1.1 (24 Mar 2007)
119    
120      * packaging changes:
121        - ported to Windows using native Windows functions for file IO
122          (provided Dev-C++ + mingw project file)
123        - only export relevant files to Doxygen API documentation
124    
125      * src/gig.cpp, src/gig.h:
126        - custom velocity splits now works for gig v3 files too
127        - added support for custom splits points for other dimensions than
128          velocity (gig v3 feature)
129        - added "smart midi" and "round robin keyboard" dimensions
130        - added new method File::DeleteGroupOnly() which only deletes the given
131          group but moves all its members to another group, the other method,
132          that is File::DeleteGroup() now removes not just the group, but also
133          all the samples that belong to that group
134        - fixed crash which occured on interfering File::DeleteSample() and
135          File::GetNextSample() calls (due to iterator invalidation)
136        - fixed group names which were not saved
137        - fixed group destructor which did not remove the RIFF chunk associated
138          with the group
139        - added Instrument::MoveRegion method
140        - fixed constructor for Region, which did not initialize correctly
141          when used from Instrument::AddRegion
142        - when saving, override the gig::Regions sample reference simply by
143          the region's first dimension region's sample (avoids an exception
144          when trying to save a new instrument)
145        - fixed AddDimension() method which did not fill out all mandatory
146          dimension definition fields
147    
148      * src/DLS.cpp, src/DLS.h:
149        - added Instrument::MoveRegion method
150        - fixed software info field which was wrongly stored on instruments,
151          causing an exception when trying to save a new instrument
152    
153      * src/RIFF.cpp, src/RIFF.h:
154        - fixed RIFF::Chunk destructor which did not unregister previously
155          resized chunks, leading to a "zero size chunk" exception when
156          File::Save() was called
157        - added List::MoveSubChunk method
158    
159    Version 3.1.0 (24 Nov 2006)
160    
161      * packaging changes:
162        - changed deprecated copyright attribute to license;
163          added ldconfig to post-(un)install steps on libgig.spec (RPM)
164    
165      * src/gig.cpp, src/gig.h:
166        - added support for more than one set of custom velocity splits
167          inside a region (for example different velocity split levels for
168          pedal up and pedal down)
169        - sample loop parameters are now taken from the DimensionRegion
170          instead of the wave chunk
171        - keyswitching dimension is changed from split type "normal" to
172          "bit"
173        - real support for 24 bit samples - samples are not truncated to
174          16 bits anymore
175        - support for reading of ".art" files. (Merging of .art and .gig
176          files are not implemented yet.)
177        - several fixes for the write support
178        - support for sample groups added
179    
180      * src/DLS.cpp, src/DLS.h:
181        - support for reading of ".art" files
182        - removed incorrect use of memccpy in the write support (patch by
183          Jeremy Kerr)
184        - several fixes for the write support
185    
186      * src/gigextract.cpp:
187        - real support for 24 bit samples
188    
189      * src/gigdump.cpp:
190        - print global file informations
191        - print sample groups
192    
193      * general changes:
194        - added CPPUnit test cases (at the moment primarily for automatic check
195          of Gigasampler write support)
196    
197    Version 3.0.0 (28 Apr 2006)
198    
199      * general changes:
200        - added write support (that is for creating and modifying RIFF, DLS and
201          gig files)
202        - loading DLS and gig files is now much more permissive, DLS and gig
203          files are now loaded even if mandatory RIFF chunks are missing
204        - fixed some memory management errors, one of them was causing a
205          crash when a multi-file gig was deallocated
206    
207      * src/gig.cpp, src/gig.h:
208        - fixed the GetVelocityCutoff function, it wasn't always using the
209          VCFVelocityScale parameter when no cutoff controller was defined
210        - support for the gig v3 feature to have a number of dimension
211          splits not equal to a power of two
212        - added write support (highly experimental)
213    
214      * src/DLS.cpp, src/DLS.h:
215        - fixed loading of Articulation Connections (<artl> list chunks were
216          seeked instead of ordinary <artl> data chunks)
217        - added write support (highly experimental)
218    
219      * src/RIFF.cpp, src/RIFF.h:
220        - added write support
221        - Chunk::LoadChunkData() can now be called again to resize the buffer
222          after a Chunk::Resize() and before the File::Save() call to allow
223          placing the new data in the chunk's write buffer and perform the
224          resize and write operations in one rush
225    
226      * src/gigdump.cpp:
227        - fixed to show the correct amount of dimension regions instead of 32
228          (patch by James Wylder)
229    
230      * src/dlsdump.cpp:
231        - show for every region the name of the referenced sample
232        - show file name in quotation marks
233    
234    Version 2.0.2 (15 Aug 2005)
235    
236      * packaging changes:
237        - require automake (>= 1.5) for 'make -f Makefile.cvs'
238          (mandatory for 'dist-bzip2' automake option)
239    
240      * src/gig.cpp, src/gig.h:
241        - support for gig v3 multi-file format (.gig, .gx01, .gx02, ...),
242          the extension files are read automatically when the samples are
243          loaded
244        - fixed the 24 bit decompression, the result should now be exact
245          instead of an approximation
246        - added VCFCutoffControllerInvert parameter and GetVelocityCutoff
247          function to DimensionRegion
248    
249      * src/DLS.cpp, src/DLS.h:
250        - the upper bits of the pool table indices are read (used as
251          extension file numbers for gig v3)
252    
253      * src/RIFF.cpp, src/RIFF.h:
254        - the file name is remembered in the RIFF::File object
255    
256    Version 2.0.1 (12 Jun 2005)
257    
258      * packaging changes:
259        - include debian/ directory on 'make dist'
260        - create a bzip2 tarball on 'make dist'
261    
262      * src/gigextract.cpp:
263        - show also version of libsndfile or build version of libaudiofile when
264          using the -v switch
265        - fixed mutual link dependency to libsndfile / libaudiofile
266    
267      * src/gig.cpp, src/gig.h:
268        - added DimensionRegion::GetVelocityRelease function
269    
270    Version 2.0.0 (9 May 2005)
271    
272      * packaging changes:
273        - fixed conditional linkage of either libsndfile or libaudiofile
274          (if none of the two exist, configure script will abort)
275        - man pages are now auto generated with the correct libgig version
276    
277      * src/gig.cpp, src/gig.h:
278        - experimental support for Gigasampler v3 format;
279          64 bit file offsets are truncated to 32 bit, 24 bit samples are
280          truncated to 16 bit, up to 8 dimensions are read, additional
281          articulation informations are ignored at the moment
282          (patch by Andreas Persson)
283        - added some file format compatibility checks
284        - fixed vcf_type_lowpassturbo value (vcf_type_lowpassturbo was actually
285          never used, because the necessary check was made before
286          initialization)
287        - fixed crossfade points order (structure for big endian and little
288          endian systems was interchanged)
289        - fixed some memory leaks (patch by 'Gene', a.k.a Anders Alm)
290        - fixed crash which occured when patches did not have a sample assigned
291          to their region or dimension region (patch by Andreas Persson)
292        - support for compressed mono samples
293        - experimental support for compressed 24 bit samples
294        - fixed decompression on big-endian CPUs
295        - fixed decompression bug that truncated the last block of samples
296        - external decompression buffers can now be used for streaming samples
297          to avoid race conditions in case of multiple streaming threads
298        - added pre-calculated sample attenuation parameter
299        - added v3 "random" and "round robin" dimensions
300        - implemented progress indicator callback mechanism for loading
301          instruments and samples
302        - added functions libraryName() and libraryVersion()
303    
304      * src/DLS.cpp, src/DLS.h:
305        - fixed File constructor which caused variable File::Instruments always
306          to be zero
307        - added functions libraryName() and libraryVersion()
308    
309      * src/RIFF.cpp, src/RIFF.h:
310        - fixed method List::LoadSubChunks() which did not restore the original
311          position within the body of the given list chunk
312        - added functions libraryName() and libraryVersion()
313    
314      * src/rifftree.cpp:
315        - added command line switch -v to show rifftree's revision and the used
316          libgig version
317    
318      * src/dlsdump.cpp:
319        - added command line switch -v to show dlsdump's revision and the used
320          libgig version
321    
322      * src/gigdump.cpp:
323        - added output of UnityNote, FineTune, Gain, SampleStartOffset an
324          LoopPlayCount
325        - added command line switch -v to show gigdump's revision and the used
326          libgig version
327    
328      * src/gigextract.cpp:
329        - support for compressed mono samples and compressed 24 bit samples
330        - added command line switch -v to show gigextract's revision and the
331          used libgig version
332    
333    Version 1.0.0 (26 Nov 2004)
334    
335      * packaging changes:
336        - renamed 'libgig.pc.in' -> 'gig.pc.in' and renamed pkg-config lib name
337          'libgig' -> 'gig' as it's common practice to omit the 'lib' prefix
338        - fixed man pages automake install rule (which didn't work on Mandrake,
339          SuSE and Fedora)
340        - fixed generation of Doxygen API documentation (now also included in
341          RPM and Debian packages)
342    
343      * src/gig.cpp, src/gig.h:
344        - fixed / improved accuracy of all three velocity to volume
345          transformation functions a.k.a. 'nonlinear','linear','special'
346          (patch by Andreas Persson)
347        - denormals are filtered from the velocity to volume tables
348        - bugfix for dimension region switching (wrong handling of the release
349          trigger dimension, no bit range check for dimensions of split type
350          'split_type_bit')
351        - fixed panorama value in DimensionRegion (invalid conversion from
352          signed 7 bit to signed 8 bit)
353        - added class attribute 'Layers' to class 'gig::Region'
354        - symbol prototyping of gig::Region (fixes build failure with qsampler)
355    
356      * src/gigextract.cpp:
357        - added support for libsndfile (if libaudiofile and libsndfile are
358          available then libsndfile is preferred)
359    
360      * src/gigdump.cpp:
361        - added printout for dimension informations (amount, type, bits, zones)
362        - added printout for velocity response curve parameters
363        - added printout for crossfade definitions
364        - added printout for panorama value for each DimensionRegion
365        - replaced printout of DLS Region layer by printout of amount of
366          Gigasampler layers
367    
368    Version 0.7.1 (2 Jul 2004)
369    
370      * packaging changes:
371        - added libgig.spec and libgig.pc package configurations for generating
372          Redhat packages
373        - header files included on installation.
374        - autotools-generated files removed from CVS repository.
375        - added support for generating Debian packages
376        - version of shared library can be set in configure.in
377    
378    Version 0.7.0 (3 May 2004)
379    
380      * general changes:
381        - various big endian specific corrections
382          (successfully tested now on PPC)
383        - minor adjustments to avoid compile errors on some systems
384          (using now pow() instead of powl() and --pedantic g++ compiler switch)
385        - libtoolized the library
386        - added man pages for the command line tools
387          (gigextract, gigdump, dlsdump, rifftree)
388    
389      * src/gig.cpp, src/gig.h:
390        - fixed bug in decompression algorithm which caused it not to detect
391          the end of a stream
392        - added method GetVelocityAttenuation() to class 'DimensionRegion' which
393          takes the MIDI key velocity value as an argument and returns the
394          appropriate volume factor (0.0 ... 1.0) for the sample to be played
395          back, the velocity curve transformation functions used for this are
396          only an approximation so far
397        - fixed class attributes 'Sample::LoopStart', 'Sample::LoopEnd' and
398          'Sample::LoopSize' which reflected wrong values
399        - class attributes 'Sample::LoopStart' and 'Sample::LoopEnd' are now
400          measured in sample points instead of byte offset
401        - renamed misleading attribute name 'Sample::MIDIPitchFraction' to
402          'Sample::FineTune'
403        - added class attribute 'Sample::LoopSize'
404        - added method GetInstrument(uint index) to class 'File'
405        - added ReadAndLoop() method to class 'Sample' which is an extension to
406          the normal Read() method to honor the sample's looping information
407          while streaming from disk
408        - changed interface for 'attenuation_ctrl_t', 'eg1_ctrl_t' and
409          'eg2_ctrl_t': replaced this huge enumeration by a structure which
410          reflects the MIDI controller number in case of an ordinary control
411          change controller (this saves a huge switch-case block in the
412          application of the library user)
413        - renamed following attributes in class 'DimensionRegion':
414          'AttenuationContol' -> 'AttenuationController',
415          'InvertAttenuationControl' -> 'InvertAttenuationController',
416          'AttenuationControlTreshold' -> 'AttenuationControllerThreshold'
417        - minor fix in API documentation for method GetVelocityAttenuation() in
418          class 'DimensionRegion'
419    
420      * src/RIFF.cpp, src/RIFF.h:
421        - added additional API documentation
422        - minor fix in Chunk::Read() method (only a minor efficiency issue)
423    
424      * src/gigdump.cpp:
425        - added printout of samples' looping informations
426    
427    Version 0.6.0 (3 Nov 2003)
428    
429      * initial release

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