Bubble System 2 channel Wavetable sound generator logic is configuration with K005289, 4 bit PROM and DAC.
K005289 controls pitch and 5 bit address generator per channel, Waveform select and Volume control is tied to AY-3-8910 ports. (each port for per channels)
these configuration is better known as K005289, the part of logic.
furnace emulates this configurations as single system, waveform format is 15 level and 32 width.
its 16 channel wavetable/PCM chip, with (optional) stereo support.
Its also has envelope, this feature has similar as AY PSG's one but its shape is also stored at RAM, and each nibble in envelope data is for each output: so i decided to added some feature for more stereo-ish envelope.
Split: Envelope shape will be splitted to Left and Right half for each output.
HInv, Vinv: Envelope shape will be Horizontally/Vertically mirrored the left one.
Max sample length is sample bank size of Seta 2 arcade hardware (currently not emulated yet, nor it doesn't support on VGM).
Chip id is temporary, it can be changed with to suggestions.
Allow 8 bit volume for YM2610 ADPCM-B
Remove sample mode macro in YM2610, it's always enabled and seperated channels.
TODO: ADPCM-B is still not implemented, FM Channel 2 is silenced in extended channel 3 configuration
this commit mostly rewrites the sample system.
as of now samples can be ADPCM, 8-bit, BRR or 16-bit
or something...
consider this VERY EXPERIMENTAL.
if you find any issues REPORT THEM immediately.
it's nearly 4am...
as of now compound systems (Genesis and Arcade) are translated to
separate chips.
this improves audio quality and makes things easier.
it also allows you to change the volume of each chip on a Genesis.
also adds SegaPCM system with 16 channels!
On some locales (e.g. Japanese) MSVC will fail to build Furnace
because it makes an incorrect assumption about the encoding of
source files. In particular, string literals in engine.cpp cause
compile errors. This probably doesn't show up in CI because of
the difference in locale.
This patch adds the `/source-charset:utf-8` compiler flag for MSVC,
which tells it the encoding of the source files.
With this change, MSVC appears to build Furnace properly. Tested
with Visual Studio Professional 2022.
