The internal waveforms of the class Oscillator produces the wrong amplitude when the input is a
negative phase. When doing PM or FM, negative phases may occur. When a negative phase is e.g. passed
to the the saw sample, it produces values less than -1.0, hence going out of range.
Converted all fraction calls to absFraction calls.
Removed the +2 in the function Oscillator::recalcPhase. The comment here was that it was needed to avoid
negative phases in case of PM. But by converting fraction to absFraction in the waveforms, negative phases
are not an issue anymore. On top of that the m_phase variable gains about 2 extra bits in precision.
As side effect of that, it improves the behaviour of the issue #2047 - TripleOscillator: Oscillators are getting out of sync.
Though I did not investigate it thoroughly over different notes and samplerates.
Add documentation to the fraction and absFraction functions in lmms_math.h as it was not immediately clear by the name what the
functions do. Correct the implementation of the functions in case the flag __INTEL_COMPILER is set. (floorf rounds always down).
- Additional LMMS_BUILD flag.
- Disallow on plugins -Wl,-no-undefined which triggers undefined references.
- Make sure X11 headers are found.
Lib ossaudio is needed only for OpenBSD
redundant expression removal
simplify condition for detection OS 'kind'
seems the last commit brought an issue on OSx travis test ....
Constants:
- calculate all in long double so as to improve the accuracy of our pre-calculated constants
- add some possibly useful constants: reciprocal of pi, square of pi, and reciprocal of e
Math:
- new math convenience functions: absMax, absMin
- Uses existing functionality in FxMixer & FxMixerView to manipulate channels
- Instruments sending to the manipulated channels get automatically updated
- In the future I hope to implement a drag/drop functionality instead of the clunky context menu but this is a good first step until then
- Also added in a little QWhatsThis help message for the FX line, also accessible from context menu
That lmms_math thing got mixed in accidentally, but it's also a good change: always include math.h in lmms_math - that way, other parts of the software can just #include lmms_math, and won't have to #include both math.h and lmms_math, also the yet unused sinc function in it seems to need it so this prevents problems down the line
