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|
2004-06-15 : Release 0.2.8
2004-06-15 : src/Makefile.am:
Removed loopotron for now.
src/quantiser.so.c,
src/sequencer.so.c:
Use macros for 'f' math functions (sinf and friends).
2004-06-13 : Makefile.am,
configure.in:
Now using installed gettext.
ABOUT-NLS
config.rpath,
config.sub,
m4/codeset.m4,
m4/gettext.m4,
m4/glibc21.m4,
m4/iconv.m4,
m4/intdiv0.m4,
m4/inttypes-pri.m4,
m4/inttypes.m4,
m4/inttypes_h.m4,
m4/isc-posix.m4,
m4/lcmessage.m4,
m4/lib-ld.m4,
m4/lib-link.m4,
m4/lib-prefix.m4,
m4/nls.m4,
m4/po.m4,
m4/progtest.m4,
m4/stdint_h.m4,
m4/uintmax_t.m4,
m4/ulonglong.m4,
po/Makefile.in.in
po/Makevars.template
po/Rules-quot
po/boldquot.sed
po/en@boldquot.header
po/en@quot.header
po/insert-header.sin
po/quot.sed
po/remove-potcdate.sin:
All of these are now symlinks to installed gettext,
and have been removed from the repository.
2004-05-02 : src/include/math_func.h:
Moved #include <math.h> below float_cast.h
float_cast.h may define ISO C99, which needs
to be defined prior to math.h so that the C99
lrint and lrintf functions are used
src/include/float_cast.h:
#define's to avoid including multiple times
src/include/common.h:
Removed redundant f_trunc_i
2004-04-30 : configure.in:
Oops. Check for sinf, not sinff
src/quantiser.so.c,
src/sequencer.so.c:
No need to free port names - static data
2004-04-15 : doc/blop.rdf:
Fixed Quantiser tags
2004-04-11 : doc/plugins_list.txt,
src/dahdsr_2021.so.c:
Added control-rate gate and trigger variant
src/tracker_2025.so.c,
Changed copyright year to year written
src/difference_2030.so.c,
src/ratio_2034.so.c:
Renamed labels to reflect port names
Changed copyright year to year written
po/blop.pot,
po/de.po,
po/en_GB.po:
Regenerated translations
doc/blop.rdf:
Added DAHDSR, Ratio and Difference plugins
2004-03-17 : src/include/math_func.h:
New file
Hide math functions behind defines to allow
substitution of sin for sinf etc where needed
configure.in:
Changes for sinf detection - now sets HAVE_SINF
src/include/common.h,
src/include/interpolate.h,
src/include/wavedata.h,
src/amp_1654.so.c,
src/fmod_1656.so.c,
src/random_1661.so.c,
src/tracker_2025.so.c:
Replaced sinf, expf etc with defined equivalent
doc/plugins_list.txt,
src/Makefile.am
src/difference_2030.so.c,
src/ratio_2034.so.c:
New plugins
src/product_1668.so.c,
src/sum_1665.so.c,
src/triangle_1649.so.c:
Minor comment corrections
src/sync_square_1678.so.c:
No need for math.h
intl/plural.c,
po/blop.pot,
po/de.po,
po/en_GB.po:
Updated message positions and for new plugins
2004-01-20 : src/include/wavedata.h,
src/wdatutil.c:
Fixed phase offset bug
2004-01-11 : src/triangle_1649.so.c:
Fixed silly mistake in applying scale factor
2003-12-25 : src/include/wavedata.h,
src/include/wdatutil.h,
src/wavedata.c,
src/wavegen.c,
src/wdatutil.c:
Changes to wavedata generation - now all static
data in separate dll. No SHM anymore...
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c:
Changes to use new wavedata.
configure.in:
Removed check for POSIX SHM
src/include/common.h,
src/include/float_cast.h,
src/include/interpolate.h,
src/include/lp4pole_filter.h,
src/Makefile.am,
src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/amp_1654.so.c,
src/branch_1673.so.c,
src/dahdsr_2021.so.c,
src/fmod_1656.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/lp4pole_filter.c,
src/product_1668.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sequencer.so.c,
src/sum_1665.so.c,
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c,
src/tracker_2025.so.c:
Silly code cleaning. I started, so I finished...
po/blop.pot,
po/de.po,
po/en_GB.po:
Updated for changes in code.
2003-12-01 : src/fmod_1656.so.c,
src/lp4pole_1671.so.c,
src/pulse_1645.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Logarithmic minima changed to +ve value
for lazy hosts that do a simple log(val).
Assumes 48000 Hz sample rate.
2003-11-15 : src/include/wavedata.h,
src/wavedata.c:
Added SHM for wavedata.
src/Makefile.am,
configure.in:
Added shm as option.
2003-11-09 : src/amp_1654.so.c,
src/fmod_1656.so.c:
Replaced powf with expf (more efficient)
src/quantiser.so.c:
Fixed bug in wrapped mode quantiser - subtract, not
assign excess range from input
src/sync_pulse_2023.so.c:
Fixed audio rate variant - pulsewidth should be multiple of
sample rate for comparison with phase
src/include/wavedata.h,
src/wavedata.c,
src/wdatutil.c:
Changed to generate a separate data .so which is dlopen()ed
so that the data can be shared between multiple instances.
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c:
Modified to use new .so data instead of #included headers.
src/Makefile.am:
Build rules changed to build data as .so, and install
in subdir
configure.in:
Added wavedata subdir variable
po/blop.pot,
po/de.po,
po/en_GB.po:
Updated to reflect changed positions of strings in
oscillator plugins
2003-09-28 : src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/amp_1654.so.c,
src/branch_1673.so.c,
src/dahdsr_2021.so.c,
src/fmod_1656.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/product_1668.so.c,
src/pulse_1645.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/sequencer.so.c,
src/square_1643.so.c,
src/sum_1665.so.c,
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Added #include <locale.h> as compiler was complaining about
setlocale(). Strange. It Worked Yesterday (tm).
src/quantiser.so.c:
Some fine-tuning and fixed change-trigger.
src/Makefile.am:
Removed (added -O0) optimisations for building quantiser, as
-O1 and up break it.
configure.in:
Removed redundant -f options from CFLAGS (covered by -O3)
po/blop.pot,
po/de.po,
po/en_GB.po:
Updated since changes to sources
2003-09-23 : po/de.po:
German translations from Mario Lang
po/blop.pot,
po/en_GB.po:
Recreated, omitting plugin labels
src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/amp_1654.so.c,
src/branch_1673.so.c,
src/dahdsr_2021.so.c,
src/fmod_1656.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/product_1668.so.c,
src/pulse_1645.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/sequencer.so.c,
src/square_1643.so.c,
src/sum_1665.so.c,
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Removed gettext marks from plugin labels, as they
mostly won't translate well.
Makefile.am:
Cleaned up EXTRA_DIST madness
2003-09-12 : src/include/wdatutil.h:
Fixed macro that accidentally worked anyway
src/wavedata.c:
No need for stdio.h
2003-09-09 : ABOUT-NLS,
config.rpath,
intl/*
m4/*
po/ChangeLog,
po/Makefile.in.in,
po/Makevars.template,
po/Rules-quot,
po/boldquot.sed,
po/en@boldquot.header,
po/en@quot.header,
po/insert-header.sin,
po/quot.sed,
po/remove-potdate.sin:
Gettext boilerplate added
po/LINGUAS,
po/Makevars,
po/POTFILES.in,
po/blop.pot,
po/en_GB.po:
BLOP-specific gettext files added.
src/Makefile.am:
For automake 1.5 (needed for gettext)
src/include/Makefile.am:
Add gettext.h to dist target
2003-09-05 : Makefile.am,
configure.in:
gettextize
src/include/gettext.h:
Added for gettext use in sources
src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/amp_1654.so.c,
src/branch_1673.so.c,
src/dahdsr_2021.so.c,
src/fmod_1656.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/product_1668.so.c,
src/pulse_1645.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/sequencer.so.c,
src/square_1643.so.c,
src/sum_1665.so.c,
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Added missing semicolon
TODO,
ChangeLog:
'Proper' dates.
2003-08-30 : src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/amp_1654.so.c,
src/branch_1673.so.c,
src/dahdsr_2021.so.c,
src/fmod_1656.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/product_1668.so.c,
src/pulse_1645.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/sequencer.so.c,
src/square_1643.so.c,
src/sum_1665.so.c,
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Prepared for gettext (marked translatable strings)
2003-08-27 : src/include/lp4pole_filter.h,
src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/dahdsr_2021.so.c,
src/interpolator_1660.so.c,
src/lp4pole_1671.so.c,
src/lp4pole_filter.c,
src/pulse_1645.so.c,
src/quantiser.so.c,
src/random_1661.so.c,
src/sawtooth_1641.so.c,
src/sequencer.so.c,
src/square_1643.so.c,
src/tracker_2025.so.c,
src/triangle_1649.so.c:
Moved initialisation of instance data to activate()
function in each plugin.
src/sync_pulse_2023.so.c,
src/sync_square_1678.so.c:
As above, plus added TOGGLED hint for gate port.
TODO:
Added stuff that needs to be done :)
2003-08-23 : src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/dahdsr_2021.so.c,
src/sequencer.so.c:
Set TOGGLED hint for gates and triggers.
2003-07-02 : doc/blop.rdf,
doc/plugins_list.txt,
src/quantiser.so.c,
src/Makefile.am:
Added quantiser plugin
2003-06-30 : doc/blop.rdf:
Added new plugin info
src/adsr_1653.so.c,
src/adsr_1680.so.c,
src/dahdsr_2021.so.c:
Fixed some (minor) bugs in envelope generation
2003-06-26 : src/sync_pulse_2023.so.c,
src/tracker_2025.so.c:
src/Makefile.am:
Added new signal tracker and pulse clock plugins
2003-06-15 : doc/plugin_list.txt,
src/dahdsr_2021.so.c,
src/Makefile.am:
Added new dahdsr plugin
2003-06-11 : configure.in:
Changed displayed default LADSPA path in help
Removed extraneous cpu-type hack
src/adsr_1653.so.c,
src/adsr_1680.so.c:
Sustain level clipping (result of excessive values too
nasty to let go.
2003-02-18 : src/Makefile.am:
Removed $BUILT_SOURCES things and replaced with some
new rules for building oscillators with the generated
headers. This was to get rid of annoying side-effects
of the BUILT_SOURCES and dependencies.
Makefile.am:
Removed dist-hook rule - above changes sorted this
problem out.
Added extraneous files to maintainer-clean
2003-02-18 : src/include/float_cast.h,
acinclude.m4:
Files added - Erik de Castro Lopo's float cast
code for C99 lrintf detection and use
src/include/common.h,
src/include/interpolate.h,
src/include/lp4pole_filter.h,
src/include/wavedata.h,
src/include/wdatutil.h,
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c,
src/wavedata.c:
Some header shuffling to get float cast stuff
to work right.
2003-02-05 : src/sequencer16_1677.so.c,
src/sequencer32_1676.so.c,
src/sequencer64_1675.so.c:
Files replaced by single common source file compiled
with different defines to make maintenance easier
src/sequencer.so.c:
New common source file for sequencers
src/Makefile.am:
Fiddling to get three sequencers built from single source
2003-02-04 : src/sequencer16_1677.so.c,
src/sequencer32_1676.so.c,
src/sequencer64_1675.so.c:
Fixed declarations-after-statements bug that
broke build on older compilers.
2003-02-02 : doc/blop.rdf:
Output port info added
2003-02-01 : src/fmod_1656.so.c,
src/pulse_1645.so.c,
src/random_1661.so.c,
src/sequencer16_1677.so.c,
src/sequencer32_1676.so.c,
src/sequencer64_1675.so.c,
src/sync_square_1678.so.c,
src/triangle_1649.so.c:
Names changed in source
doc/plugins_list.txt:
Updated to reflect name changes
doc/blop.rdf:
Added title, creator and rights information
2003-01-29 : Fixed sequencer plugins - now have option of resetting
to fixed value or keeping the last value output when
the gate is closed.
Added blop.rdf
Made --enable-small-wavedata create smaller tables. Still
good quality output...
2003-01-26 : Added defaults for some of the plugins
2003-01-25 : configure.in
Added option to generate smaller wavetable data
[--enable-small-wavedata]
src/include/lp4pole_filter.h
Made lp4pole tuning independent of sample rate
src/include/lut_144log2.h,
src/include/lut_tanh.h,
src/tuned_lp4pole_1679.so.c
Removed this filter - it's actually worse tuning
wise than the regular one!
2003-01-24 : Slight performance increase for lp4pole filter by
storing state in a struct.
src/include/lp4pole_filter.h,
src/lp4pole_filter.c
Contains code to setup and run filter instance
src/lp4pole_1671.so.c
Plugin instance data removed - now in above filter
code. Calls added to run filter using new code.
2003-01-23 : Improved performance of oscillators (16-89% faster!)
src/include/interpolate.h
Moved wavetable stuff to src/include/wavedata.h
src/include/wavedata.h,
src/wavedata.c
Extra member data to hold playback state of
oscillator.
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c
Removed instance data, now held in wavedata
instance. Simplified running of oscillator.
src/Makefile.am
Some minor dependency changes.
2003-01-15 : Argh! Just about to release 0.2.6, and I find nasty bugs,
and slowness...
Restored original (0.2.5) low pass filter, and created new
pair of plugins for the tuned one, as it is much more
cpu-intensive (about 4x!)
2002-12-23 : Some further modifications to wavetable business for the
oscillators. With the exception of the (very short)
one for phase wrapping, all code runs without any
branches.
src/include/wavedata.h,
src/include/interpolate.h,
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c,
src/wavedata.c:
Reworked code to remove branches.
src/include/wdatutil.h,
src/wavedata.c,
src/wavegen.c,
src/wdatutil.c
Removed lowest_harmonic things - not needed.
2002-12-19 : Major changes to the oscillators' wavetable playback
as I clearly hadn't thought it through - the cross-fade
of extra harmonics was causing discontinuities due
to the gibbs compensation not matching. This has
now been fixed, and the output is much improved.
src/include/wavedata.h,
src/include/wdatutil.h,
src/wavedata.h,
src/wavegen.c,
src/wdatutil.c:
Changes to wavetable pair data to allow for
differing gibbs compensation. Some other minor
bug fixes.
src/include/interpolate.h:
Changes to getSamples to cross fade pairs of
tables instead of simply fading in extra harmonics.
Also removed some branching from the table lookup.
src/pulse_1645.so.c,
src/sawtooth_1641.so.c,
src/square_1643.so.c,
src/triangle_1649.so.c:
Removed some branching from code.
2002-12-17 : Further work on lowpass filter to eliminate some
instabilities (runaway values resulting in
noise/NaN).
src/include/l2table.h:
renamed to lut_144log2.h
src/include/lut_tanh.h:
added
src/Makefile.am:
modified dependencies
src/lp4pole.so.c:
tuned and smooth clipped
Dist rule: make dist was keeping the CVS directory
under src/include in the dist. Now fixed:
src/include/Makefile.am:
Added and specified headers etc.
src/Makefile.am:
Adjusted to make include a subdir
configure.in:
Added src/include/Makefile create
2002-12-10 : Tuned lowpass filter
Added log 2 based table lookup
src/include/l2table.h
src/Makefile.am
src/lp4pole_1671.so.c
2002-11-24 : Added analogue sequencer and sync oscillator
Modified wavegen to allow note skip (allows smaller
wavedata - e.g. to fit in cpu cache)
Some minor bugfixes and updates
2002-11-09 : configure.in:
Removed -march flags from CFLAGS, as was causing
problems on some architectures
2002-11-02 : (After a looooooonnnnnnggg period of inactivity)
I added a branch plugin. Woohoo...
2002-09-24 : configure.in:
Added check for getopts
2002-08-12 : Changed plugin names to show port types.
<grr>
Much that I am loathe to duplicate information,
most modular synths don't show other info, and
rely on names being unique
</grr>
2002-07-15 : Fixed NaN output bug in lowpass filter - clamped
resonance to [0.0, 4.0]. I know it's in the range
hints, but plugging an LFO into it (for example)
*can* cause the bounds to be exceeded.
2002-07-14 : Added low pass resonant filter plugin
2002-07-10 : blop_ prefix removed from plugins - this can be done
at configure time using --program-prefix=FOO
2002-07-10 : Okay. Some compromises made so automake will be nice
to me...
src/wavegen.c,
src/wdatutil.c:
Moved to parent
src/wavegen:
Removed
Makefile.am,
configure.in,
src/Makefile.am:
Some finagling to differentiate a plugin build
from a regular program build.
More fudgin to get 'make dist' to work.
2002-07-09 : Argh - except the result of make dist just plain
does not work (seems to ignore building of
data headers first.)
2002-07-08 : Tested all new plugins and new build system
- all A-OK!
2002-07-06 : Complete revision of directory structure:
doc/Makefile.am
doc/about.txt
doc/plugins_list.txt
src/include/common.h
src/include/interpolate.h
src/include/wavedata.h
src/include/wdatutil.h
src/wavegen/Makefile.am
src/wavegen/wavegen.c
src/wavegen/wdatutil.c
src/Makefile.am
src/blop_adsr.so.c
src/blop_amp.so.c
src/blop_fmod.so.c
src/blop_interpolator.so.c
src/blop_product.so.c
src/blop_pulse.so.c
src/blop_random.so.c
src/blop_sawtooth.so.c
src/blop_square.so.c
src/blop_sum.so.c
src/blop_triangle.so.c
src/wavedata.c
AUTHORS
COPYING
ChangeLog
INSTALL
Makefile.am
NEWS
README
THANKS
TODO
config.h.in
configure.in
stamp-h.in
-------------------------------------------------------------------------------
2002-06-19 : adsr.so.c:
New files - an adsr envelope generator and a
control-to-audio interpolator.
2002-06-18 : random.so.c:
New file - generates a random wave of varying
smoothness - sorta like random noise thru a
filter.
2002-06-17 : amp.so.c,
fmod.so.c,
lmod.so.c:
New files added - these are additional plugins to
complement the oscillators. They are not released
yet. Also planning to add an ADSR, a Control-to-Audio
interpolator and a Randomizer (sort of sample-and-hold,
but not). All these scheduled for release 0.3.
2002-06-16 : pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Modified my email address, replaced '@' with '[at]',
cos I've been getting spam! (ARGH!)
2002-06-14 : pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Modified to only advance the phase (position) for
frequencies below Nyquist (this is to prevent the phase
from drifting too high - this can happen for very large
frequencies, and causes instability)
2002-06-09 : Makefile:
Added GIBBS variable to allow setting of Gibbs
compnesation argument to wavegen.
include/wdatutil.h,
wavegen.c,
wdatutil.h:
Improved Gibbs compensation - can now set degree of
compensation, from none to maximum. Maximum will now
almost completely eliminate overshoot, and the resulting
waveform is pretty much normalised to [-1,1] as a result!
2002-06-08 : wdatutil.h:
Gibbs compensated parabola generation was skipping the
even harmonics - fixed.
Makefile:
Modified wavedata header rules to use prefix, following
addition of prefix option to wavegen.
wavedata.h:
Moved the extraction of wavedata header data to top of
function for clarity.
wavegen.c,
wdatutil.c:
Some other changes to the format of the wavedata header
file output by wavegen - now allows specification of
unique prefix for declarations - this is so more than
one such header may be included in code.
include/wdatutil.h,
wavegen.c,
wdatutil.c:
Alterations to fix wave generation for square and
parabola waves - base and extra harmonics now
generated with respect to actual harmonic content
(both square and parabola only contain odd harmonics).
Previously, some of the extra samples were ending up
zeroed because they were just a single even harmonic.
2002-06-07 : README:
A bit more text about bandlimiting methods.
include/interpolate.h,
include/wavedata.h,
wavedata.c:
Revised to work with the new wavedata file contents.
include/wdatutil.h,
wavegen.c,
wdatutil.c:
Finalised changes to wavedata file format and content.
Now each wavetable has two sets of data as before, but
one set contains harmonics that would be played at
all pitches in range, and the other contains the 'extra'
higher harmonics that are faded in as pitch decreases.
2002-06-06 : include/wdatutil.h,
wavegen.c,
wdatutil.c:
Change to the format of the intermediate data before
it is written to the header file. More structured
representation, instead of lots of huge allocated
memory (which would not necessarily be contiguous,
and if not, the code would fail).
Work on new method for cross fading wavetables of
differing harmonics.
2002-06-05 : include/interpolate.h:
Further investigation into the abberation in the
triangle wave. The likely cause was the two parabola
waves were not being queried in sync - resulting in
the wrong sample being retrieved in some cases.
2002-06-04 : include/interpolate.h:
The triangle plugin was putting out NaNs for very
small slopes (where the output approaches a sawtooth
wave) - further investigation revealed that there
was an aberration at the cross-over point (where
the amplitude crosses zero).
Some work on the getSamples function seemed to
remove the problem.
2002-06-02 : TODO:
Removed notes about optimisation: avltree lookup
is only faster because special cases were not
being handled - these must stay.
Restraints on pulsewidth/slope settings caused
quite nasty artifacts, so the double interpolation
in pulse and traingle plugins has to stay.
include/interpolate.h,
wavedata.c,
wavegen.c,
wdatutil.c:
Minor changes and some more comments
pulse.so.c:
Pulsewidth now clamped to [0.0,1.0]
triangle.so.c:
Slope clamped to [min, max] (dependent on
sample rate)
2002-06-01 : include/interpolate.h,
wdatutil.c,
wavegen.c,
wavedata.c:
Modified wavetables to have an extra 3 samples
per table - this allows interpolation to be done
without too much bounds checking on sample index.
A small speed increase results!
wdatutil.c:
Parabola wave generation was using the wrong
scale factor, resulting in the triangle plugin
having huge amplitudes compared to the rest.
This has been fixed.
2002-05-31 : include/wdatutil.h,
wavegen.c,
wdatutil.c:
More farting about with the format. Now only
generates wavetables that will be cross faded
upon playback (rather than filling the last
one with zeroes)
include/wavedata.h,
wavedata.c:
Some slight changes to add the three 'special
case' wavetables that are played at the extreme
frequencies
include/interpolate.h:
Finalised getTable - now it *does* return, and
it returns that wavetable to play. Some changes
to accommodate the special case wavetables.
getSamples now incorporates the new special cases,
and the cross fade. But it could do with improvement.
getXFadeScale is no more.
pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Updated to use new interpolate.h functions. Some
declarations added for getSamples (rather than
having these variables declared every sample, which
consumes a measurable amount of CPU)
2002-05-30 : include/interpolate.h
Changed getTable from returning true/false to
void - no need for this anymore, as cross fade
testing will be done in getSamples.
pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Removed table_found check - getTable no longer
returns.
2002-05-29 : include/interpolate.h,
include/wavedata.h,
pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c,
wavedata.c:
Modified to use new wavetable pairs for cross fading.
Most of the crap is now in interpolate.h::getSamples.
2002-05-28 : include/wdatutil.h,
wavegen.c,
wdatutil.c:
Modified to generate wavetable 'pairs' for cross
fading between successive wavetables. This will
allow sample retrieval for cross-faded wavetables
to use only one interpolation op (as opposed to two)
2002-05-26 : TODO
Notes about optimisation - namely, too many interpolates!
include/interpolate.h,
pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c
Separated out sample extraction from interpolation
code. getSamples get's four samples and returns
the interval. INTERPOLATE function (now a #define)
actually does the interpolation.
2002-05-24 : include/interpolate.h
Experiments with cubic vs. 5th order spline resulted in
the cubic spline being the winner (as it's faster, and
is a fly's hair's whisker away from the 5th order...)
2002-05-23 : include/avltree.h,
avltree.c:
Removed these two files following confirmation
that new lookup vector works properly.
Makefile:
Removed avltree dependencies.
2002-05-22 : pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Implemented new table lookup based on simple vector
instead of binary tree.
include/wavedata.h,
include/wdatutil.h,
wavedata.c,
wdatutil.c,
wavegen.c:
Modifications to replace tree lookup with new vector
lookup (indexed on max harmonic number)
2002-05-20 : pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Moved table lookup to separate (inlined) function
2002-05-15 : pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c:
Cubic spline interpolation (no, it's a 5th order. Silly
old me didn't have a clue...)
2002-05-14 : INSTALL:
Minor clarifications.
AUTHORS:
Added some acknowledgements :)
include/wavedata.h,
include/wdatutil.h,
wavedata.c,
wavegen.c,
wdatutil.c:
Changed wavedata file to pass maximum harmonics instead
of min and max frequencies. Wavedata sample rate is now
independent of sample rate used in plugins (as it should
be).
include/avltree.h,
include/wavedata.h,
include/wdatutil.h,
pulse.so.c,
sawtooth.so.c,
square.so.c,
triangle.so.c,
wavedata.c,
wavegen.c,
wdatutil.c:
Changed data types from float to LADSPA_Data for consistency
Some tidying up.
2002-05-12 : Initial code put together
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