Document mu3io API

This commit is contained in:
Tau 2021-06-06 15:06:26 -04:00
parent cfb39cd066
commit 3a03c95e1d

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@ -17,14 +17,68 @@ enum {
MU3_IO_GAMEBTN_MENU = 0x10,
};
/* Get the version of the Ongeki IO API that this DLL supports. This
function should return a positive 16-bit integer, where the high byte is
the major version and the low byte is the minor version (as defined by the
Semantic Versioning standard).
The latest API version as of this writing is 0x0100. */
uint16_t mu3_io_get_api_version(void);
/* Initialize the IO DLL. This is the second function that will be called on
your DLL, after mu3_io_get_api_version.
All subsequent calls to this API may originate from arbitrary threads.
Minimum API version: 0x0100 */
HRESULT mu3_io_init(void);
/* Send any queued outputs (of which there are currently none, though this may
change in subsequent API versions) and retrieve any new inputs.
Minimum API version: 0x0100 */
HRESULT mu3_io_poll(void);
/* Get the state of the cabinet's operator buttons as of the last poll. See
MU3_IO_OPBTN enum above: this contains bit mask definitions for button
states returned in *opbtn. All buttons are active-high.
Minimum API version: 0x0100 */
void mu3_io_get_opbtns(uint8_t *opbtn);
/* Get the state of the cabinet's gameplay buttons as of the last poll. See
MU3_IO_GAMEBTN enum above for bit mask definitions. Inputs are split into
a left hand side set of inputs and a right hand side set of inputs: the bit
mappings are the same in both cases.
All buttons are active-high, even though some buttons' electrical signals
on a real cabinet are active-low.
Minimum API version: 0x0100 */
void mu3_io_get_gamebtns(uint8_t *left, uint8_t *right);
/* Get the position of the cabinet lever as of the last poll. The center
position should be equal to or close to zero.
The operator will be required to calibrate the lever's range of motion on
first power-on, so the lever position reported through this API does not
need to perfectly centered or cover every single position value possible,
but it should be reasonably close in order to make things easier for the
operator.
The calibration screen displays the leftmost and rightmost position signal
returned from the cabinet's ADC encoder as a pair of raw two's complement
hexadecimal values. On a real cabinet these leftmost and rightmost
positions are somewhere around 0xB000 and 0x5000 respectively (remember
that negative values i.e. left positions have a high most-significant bit),
although these values can easily vary by +/- 0x1000 across different
cabinets.
Minimum API version: 0x0100 */
void mu3_io_get_lever(int16_t *pos);