Contents of /libgig/trunk/ChangeLog

Version CVS HEAD (?)
  * general changes:
    - minor Makefile fix for parallel make
    - Mac OS X: link with CoreFoundation (for the UUID function)
    - removed gcc 4.7 warnings
    - modernized configure script
    - removed usage of deprecated Automake variable INCLUDES
    - added new command line tool "gigmerge"
    - added "const" keyword to several methods
    - added new command line tool "gig2mono"
    - added man page for "sf2dump"

  * SoundFont file format:
    - initial implementation
    - changed region lookup API to avoid malloc in RT threads
    - fixed GetEG1Sustain which didn't return correct value
    - bugfix: GetPan always returned -1, 0 or 1

  * src/gig.cpp:
    - bugfix: VCF velocity dynamic range and VCF velocity curve
      weren't saved correctly
    - implemented File::AddDuplicateInstrument()
    - bugfix: negative EG3 depth values were not correctly parsed or
      saved
    - added write support for CtrlTrigger midi rule
    - added read and write support for Legato and Alternator midi
      rules
    - bugfix: sample groups were sometimes created multiple times or with
      wrong textual group name
    - added new method File::AddContentOf() for merging .gig files
    - GIG FORMAT EXTENSION: added additional MIDI controllers for leverage
      controller types (only works with LinuxSampler & gigedit, will not
      work with Gigasampler/GigaStudio)

  * src/DLS.cpp, src/DLS.h:
    - added new method File::GetFileName()
    - fixed minor "memory leak on exception" bug found with cppcheck
    - added new method File::GetExtensionFile(int index)
    - added new method File::SetFileName() allowing to call File::Save()
      later on without passing a file name

  * src/RIFF.cpp, src/RIFF.h:
    - bugfix: avoid calling read() with count 0 when writing a file,
      as this may hang on some systems
    - fixed memory leak and memory handling errors when file loading
      fails
    - added new method Chunk::ReadString
    - added new method File::SetFileName() allowing to call File::Save()
      later on without passing a file name
    - added new method File::IsNew()

  * src/gigextract.cpp:
    - export sample loop, unity note and fine tune with libsndfile

Version 3.3.0 (30 Jul 2009)

  * general changes:
    - fixed compilation with gcc 4.3
    - fixes for building with Visual C++
    - minor fix in configure for building DLL on Windows

  * src/gig.cpp, src/gig.h:
    - added partial support for MIDI rules, only the Controller
      Triggered rule is supported so far
    - bugfix: removed another iterator invalidation in DeleteSample
    - bugfix in Sample::LoadSampleData*(): reset sample read position to
      sample start before trying to (re)load sample data from file (#82)
    - bugfix: EG3 depth parameter was not saved correctly
    - fixed crash which occured when streaming a gig sample with
      bi-directional (a.k.a. 'pingpong') loop type (fixes #102)

  * src/RIFF.cpp, src/RIFF.h:
    - bugfix: saving to the same file after the file size had been
      increased made the file corrupt (#82)
    - bugfix: refuse Chunk::Read() in case chunk has just been added, that
      is not written physically yet (#82)
    - bugfix: saving to the same file after the file size had been
      decreased sometimes also made the file corrupt!
    - bugfix: undefined behavior (e.g. endless loop) when opening zero
      length files, now throws a RIFF::Exception instead (fixes bug #121)
    - bugfix: destructor for base class RIFF::Chunk accessed members
      of derived class RIFF::File, which is bad, and caused crashes
      when using Visual C++
    - bugfix: files that contain zero length RIFF lists were not read
      correctly (fixes #127) (bug was introduced 2009-03-13)

Version 3.2.1 (5 Dec 2007)

  * src/RIFF.cpp, src/RIFF.h:
    - avoid Windows to perform unnecessary file stream caching which would
      decrease disk streaming performance on Windows systems otherwise

  * src/gig.cpp, src/gig.h:
    - added File::SetAutoLoad() and File::GetAutoLoad() for allowing
      applications to retrieve very superficial informations like amount of
      instruments and their names in a very fast way

Version 3.2.0 (14 Oct 2007)

  * packaging changes:
    - added Mac OSX XCode project files (patch by Toshi Nagata)
    - Dev-C++ (win32) project file is automatically updated with
      the version info from configure.in
    - the configure script can now be used in Windows with MSYS
    - added a mainpage for the Doxygen API documentation

  * src/DLS.cpp, src/DLS.h:
    - added Sampler::AddSampleLoop() and Sampler::DeleteSampleLoop() methods
    - fixed write support for big-endian systems
    - improved handling of fixed length info strings - separate default
      lengths can be specified for each INFO chunk
    - added Resource::GenerateDLSID function
    - write support fix: allow regions without mapped samples
    - added method SetKeyRange() to the Region class which should be used
      instead of setting the KeyRange member variable directly
    - MoveRegion() method of Region class is now private
    - added SetGain() method to Sampler class
    - fixed crash when saving a file after a sample loop was added

  * src/gig.cpp, src/gig.h:
    - fixed segmentation fault in the gig::File destructor sequence which
      happened when gig::Group informations were accessed before
    - fixed write support for big-endian systems
    - defined lengths of a fixed set of info strings. These strings
      are saved when the file is written, even if they are empty.
    - added missing parameter initalizations in sample, region and
      instrument constructors
    - clear unused fields when saving samples and regions
    - fixed write support bugs: v3 dimension limits and chunksize
      weren't saved, leverage controller of type controlchange
      couldn't be saved, group name list chunk was placed wrong,
      dimension region chunks also placed wrong
    - added initialization of some fixed info strings in file and
      instrument
    - write support: files created by libgig will now have the RIFF
      chunks in correct order
    - write support: two previously unknown fields in dimension
      definition are now saved
    - added constants for gig file versions
    - write support: the 3crc and einf chunks are now created or
      updated when a file is saved (3crc contains sample checksums,
      einf contains file statistics)
    - write support: DLSID is now generated on the file and the
      instruments
    - write support: improved the default values for dimension region
      parameters
    - more write support fixes: crossfade parameters were not saved,
      v3 dimension limits were not correctly initialized and saved
      when dimensions were added or deleted, v3 wave pool offsets were
      not saved correctly
    - write support: 24 bit samples can now be written
    - write support: version 3 is now the default for new files
    - more write support fixes: the 3ewg chunk is now bigger for v3,
      dimension regions without mapped samples are now allowed, 3gnl
      list in v3 files now always has 128 entries, several parameters
      where incorrectly saved due to an operator precedence mistake
    - DeleteSample now removes all references to the deleted sample
    - AddDimension now copies all parameters from existing dimension
      regions and also makes sure that the samplechannel dimension is
      placed first in the list of dimensions.
    - added method GetParent() to class 'DimensionRegion', which returns its
      parent Region
    - fixed Instrument::UpdateRegionKeyTable() method which did not reset
      unused areas
    - added various setter methods to DimensionRegion class which take care
      of updating lookup tables / caches.

  * src/RIFF.cpp, src/RIFF.h:
    - added File::SetByteOrder method
    - Windows fix: saving a new file didn't work

  * src/gigdump.cpp:
    - added some missing dimension strings

Version 3.1.1 (24 Mar 2007)

  * packaging changes:
    - ported to Windows using native Windows functions for file IO
      (provided Dev-C++ + mingw project file)
    - only export relevant files to Doxygen API documentation

  * src/gig.cpp, src/gig.h:
    - custom velocity splits now works for gig v3 files too
    - added support for custom splits points for other dimensions than
      velocity (gig v3 feature)
    - added "smart midi" and "round robin keyboard" dimensions
    - added new method File::DeleteGroupOnly() which only deletes the given
      group but moves all its members to another group, the other method,
      that is File::DeleteGroup() now removes not just the group, but also
      all the samples that belong to that group
    - fixed crash which occured on interfering File::DeleteSample() and
      File::GetNextSample() calls (due to iterator invalidation)
    - fixed group names which were not saved
    - fixed group destructor which did not remove the RIFF chunk associated
      with the group
    - added Instrument::MoveRegion method
    - fixed constructor for Region, which did not initialize correctly
      when used from Instrument::AddRegion
    - when saving, override the gig::Regions sample reference simply by
      the region's first dimension region's sample (avoids an exception
      when trying to save a new instrument)
    - fixed AddDimension() method which did not fill out all mandatory
      dimension definition fields

  * src/DLS.cpp, src/DLS.h:
    - added Instrument::MoveRegion method
    - fixed software info field which was wrongly stored on instruments,
      causing an exception when trying to save a new instrument

  * src/RIFF.cpp, src/RIFF.h:
    - fixed RIFF::Chunk destructor which did not unregister previously
      resized chunks, leading to a "zero size chunk" exception when
      File::Save() was called
    - added List::MoveSubChunk method

Version 3.1.0 (24 Nov 2006)

  * packaging changes:
    - changed deprecated copyright attribute to license;
      added ldconfig to post-(un)install steps on libgig.spec (RPM)

  * src/gig.cpp, src/gig.h:
    - added support for more than one set of custom velocity splits
      inside a region (for example different velocity split levels for
      pedal up and pedal down)
    - sample loop parameters are now taken from the DimensionRegion
      instead of the wave chunk
    - keyswitching dimension is changed from split type "normal" to
      "bit"
    - real support for 24 bit samples - samples are not truncated to
      16 bits anymore
    - support for reading of ".art" files. (Merging of .art and .gig
      files are not implemented yet.)
    - several fixes for the write support
    - support for sample groups added

  * src/DLS.cpp, src/DLS.h:
    - support for reading of ".art" files
    - removed incorrect use of memccpy in the write support (patch by
      Jeremy Kerr)
    - several fixes for the write support

  * src/gigextract.cpp:
    - real support for 24 bit samples

  * src/gigdump.cpp:
    - print global file informations
    - print sample groups

  * general changes:
    - added CPPUnit test cases (at the moment primarily for automatic check
      of Gigasampler write support)

Version 3.0.0 (28 Apr 2006)

  * general changes:
    - added write support (that is for creating and modifying RIFF, DLS and
      gig files)
    - loading DLS and gig files is now much more permissive, DLS and gig
      files are now loaded even if mandatory RIFF chunks are missing
    - fixed some memory management errors, one of them was causing a
      crash when a multi-file gig was deallocated

  * src/gig.cpp, src/gig.h:
    - fixed the GetVelocityCutoff function, it wasn't always using the
      VCFVelocityScale parameter when no cutoff controller was defined
    - support for the gig v3 feature to have a number of dimension
      splits not equal to a power of two
    - added write support (highly experimental)

  * src/DLS.cpp, src/DLS.h:
    - fixed loading of Articulation Connections (<artl> list chunks were
      seeked instead of ordinary <artl> data chunks)
    - added write support (highly experimental)

  * src/RIFF.cpp, src/RIFF.h:
    - added write support
    - Chunk::LoadChunkData() can now be called again to resize the buffer
      after a Chunk::Resize() and before the File::Save() call to allow
      placing the new data in the chunk's write buffer and perform the
      resize and write operations in one rush

  * src/gigdump.cpp:
    - fixed to show the correct amount of dimension regions instead of 32
      (patch by James Wylder)

  * src/dlsdump.cpp:
    - show for every region the name of the referenced sample
    - show file name in quotation marks

Version 2.0.2 (15 Aug 2005)

  * packaging changes:
    - require automake (>= 1.5) for 'make -f Makefile.cvs'
      (mandatory for 'dist-bzip2' automake option)

  * src/gig.cpp, src/gig.h:
    - support for gig v3 multi-file format (.gig, .gx01, .gx02, ...),
      the extension files are read automatically when the samples are
      loaded
    - fixed the 24 bit decompression, the result should now be exact
      instead of an approximation
    - added VCFCutoffControllerInvert parameter and GetVelocityCutoff
      function to DimensionRegion

  * src/DLS.cpp, src/DLS.h:
    - the upper bits of the pool table indices are read (used as
      extension file numbers for gig v3)

  * src/RIFF.cpp, src/RIFF.h:
    - the file name is remembered in the RIFF::File object

Version 2.0.1 (12 Jun 2005)

  * packaging changes:
    - include debian/ directory on 'make dist'
    - create a bzip2 tarball on 'make dist'

  * src/gigextract.cpp:
    - show also version of libsndfile or build version of libaudiofile when
      using the -v switch
    - fixed mutual link dependency to libsndfile / libaudiofile

  * src/gig.cpp, src/gig.h:
    - added DimensionRegion::GetVelocityRelease function

Version 2.0.0 (9 May 2005)

  * packaging changes:
    - fixed conditional linkage of either libsndfile or libaudiofile
      (if none of the two exist, configure script will abort)
    - man pages are now auto generated with the correct libgig version

  * src/gig.cpp, src/gig.h:
    - experimental support for Gigasampler v3 format;
      64 bit file offsets are truncated to 32 bit, 24 bit samples are
      truncated to 16 bit, up to 8 dimensions are read, additional
      articulation informations are ignored at the moment
      (patch by Andreas Persson)
    - added some file format compatibility checks
    - fixed vcf_type_lowpassturbo value (vcf_type_lowpassturbo was actually
      never used, because the necessary check was made before
      initialization)
    - fixed crossfade points order (structure for big endian and little
      endian systems was interchanged)
    - fixed some memory leaks (patch by 'Gene', a.k.a Anders Alm)
    - fixed crash which occured when patches did not have a sample assigned
      to their region or dimension region (patch by Andreas Persson)
    - support for compressed mono samples
    - experimental support for compressed 24 bit samples
    - fixed decompression on big-endian CPUs
    - fixed decompression bug that truncated the last block of samples
    - external decompression buffers can now be used for streaming samples
      to avoid race conditions in case of multiple streaming threads
    - added pre-calculated sample attenuation parameter
    - added v3 "random" and "round robin" dimensions
    - implemented progress indicator callback mechanism for loading
      instruments and samples
    - added functions libraryName() and libraryVersion()

  * src/DLS.cpp, src/DLS.h:
    - fixed File constructor which caused variable File::Instruments always
      to be zero
    - added functions libraryName() and libraryVersion()

  * src/RIFF.cpp, src/RIFF.h:
    - fixed method List::LoadSubChunks() which did not restore the original
      position within the body of the given list chunk
    - added functions libraryName() and libraryVersion()

  * src/rifftree.cpp:
    - added command line switch -v to show rifftree's revision and the used
      libgig version

  * src/dlsdump.cpp:
    - added command line switch -v to show dlsdump's revision and the used
      libgig version

  * src/gigdump.cpp:
    - added output of UnityNote, FineTune, Gain, SampleStartOffset an
      LoopPlayCount
    - added command line switch -v to show gigdump's revision and the used
      libgig version

  * src/gigextract.cpp:
    - support for compressed mono samples and compressed 24 bit samples
    - added command line switch -v to show gigextract's revision and the
      used libgig version

Version 1.0.0 (26 Nov 2004)

  * packaging changes:
    - renamed 'libgig.pc.in' -> 'gig.pc.in' and renamed pkg-config lib name
      'libgig' -> 'gig' as it's common practice to omit the 'lib' prefix
    - fixed man pages automake install rule (which didn't work on Mandrake,
      SuSE and Fedora)
    - fixed generation of Doxygen API documentation (now also included in
      RPM and Debian packages)

  * src/gig.cpp, src/gig.h:
    - fixed / improved accuracy of all three velocity to volume
      transformation functions a.k.a. 'nonlinear','linear','special'
      (patch by Andreas Persson)
    - denormals are filtered from the velocity to volume tables
    - bugfix for dimension region switching (wrong handling of the release
      trigger dimension, no bit range check for dimensions of split type
      'split_type_bit')
    - fixed panorama value in DimensionRegion (invalid conversion from
      signed 7 bit to signed 8 bit)
    - added class attribute 'Layers' to class 'gig::Region'
    - symbol prototyping of gig::Region (fixes build failure with qsampler)

  * src/gigextract.cpp:
    - added support for libsndfile (if libaudiofile and libsndfile are
      available then libsndfile is preferred)

  * src/gigdump.cpp:
    - added printout for dimension informations (amount, type, bits, zones)
    - added printout for velocity response curve parameters
    - added printout for crossfade definitions
    - added printout for panorama value for each DimensionRegion
    - replaced printout of DLS Region layer by printout of amount of
      Gigasampler layers

Version 0.7.1 (2 Jul 2004)

  * packaging changes:
    - added libgig.spec and libgig.pc package configurations for generating
      Redhat packages
    - header files included on installation.
    - autotools-generated files removed from CVS repository.
    - added support for generating Debian packages
    - version of shared library can be set in configure.in

Version 0.7.0 (3 May 2004)

  * general changes:
    - various big endian specific corrections
      (successfully tested now on PPC)
    - minor adjustments to avoid compile errors on some systems
      (using now pow() instead of powl() and --pedantic g++ compiler switch)
    - libtoolized the library
    - added man pages for the command line tools
      (gigextract, gigdump, dlsdump, rifftree)

  * src/gig.cpp, src/gig.h:
    - fixed bug in decompression algorithm which caused it not to detect
      the end of a stream
    - added method GetVelocityAttenuation() to class 'DimensionRegion' which
      takes the MIDI key velocity value as an argument and returns the
      appropriate volume factor (0.0 ... 1.0) for the sample to be played
      back, the velocity curve transformation functions used for this are
      only an approximation so far
    - fixed class attributes 'Sample::LoopStart', 'Sample::LoopEnd' and
      'Sample::LoopSize' which reflected wrong values
    - class attributes 'Sample::LoopStart' and 'Sample::LoopEnd' are now
      measured in sample points instead of byte offset
    - renamed misleading attribute name 'Sample::MIDIPitchFraction' to
      'Sample::FineTune'
    - added class attribute 'Sample::LoopSize'
    - added method GetInstrument(uint index) to class 'File'
    - added ReadAndLoop() method to class 'Sample' which is an extension to
      the normal Read() method to honor the sample's looping information
      while streaming from disk
    - changed interface for 'attenuation_ctrl_t', 'eg1_ctrl_t' and
      'eg2_ctrl_t': replaced this huge enumeration by a structure which
      reflects the MIDI controller number in case of an ordinary control
      change controller (this saves a huge switch-case block in the
      application of the library user)
    - renamed following attributes in class 'DimensionRegion':
      'AttenuationContol' -> 'AttenuationController',
      'InvertAttenuationControl' -> 'InvertAttenuationController',
      'AttenuationControlTreshold' -> 'AttenuationControllerThreshold'
    - minor fix in API documentation for method GetVelocityAttenuation() in
      class 'DimensionRegion'

  * src/RIFF.cpp, src/RIFF.h:
    - added additional API documentation
    - minor fix in Chunk::Read() method (only a minor efficiency issue)

  * src/gigdump.cpp:
    - added printout of samples' looping informations

Version 0.6.0 (3 Nov 2003)

  * initial release