SoLoud Audio Engine SLF Release

[Jari Komppa]

- Hilights:
- New demo: "space", demonstrating visualization data from
different parts of the pipeline
- New demo: "pew pew", demonstrating difference between play() and
playClocked()
- New filter: flanger
- New way to play sounds: playClocked() for rapidly-launched
sounds, to make it so all sounds don't start from the beginning of a
sound buffer
- Loop count query added
- Voice groups to command several voices in one atomic operation
- A lot of variable type changes:
- Defined error codes, and several functions return error codes now.
- Time variable type changed from float to double
- Typedefs for handles, time, result codes
- Plenty of "int" -> "unsigned int" changes, some ints changed to bools
- A lot of work on code generation and wrappers:
- Codegen now also outputs soloud_codegen.py with all data needed
to generate wrappers
- Python wrapper generator
- Python API
- Other changes that affect your code:
- stopSound() renamed to stopAudioSource(). Audio sources also got
a new stop() function that stops all instances.
- Echo filter now has an optional low pass filter to make more
"natural" echoes
- Default post-clip scaler upped from 0.5 to 0.95
- New songs for multimusic, changed multimusic to use voice groups
- Regarding builds:
- Redesigned the mechanism by which different backends are
included in the build, controlled mainly through premake
- Many new premake options
- "nondyn" SDL build added which links to SDL directly, for
special needs such as emscripten
- sdl2 dll may work now (mutex functions were renamed from SDL to
SDL2, audio API should be almost the same)
- And, under the hood:
- Side project - resamplerlab - to make writing new resamplers
easier, with some experimental resamplers
- Some work towards osx, linux compatibility
- FFT code moved to its own source so it can be more easily
replaced in the future
- Changed mixer fixed point from 16.16 to 12.20
- Various small fixes, as usual.