segatools/mu3hook/io4.c

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#include <windows.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "board/io4.h"
#include "mu3io/mu3io.h"
#include "util/dprintf.h"
static HRESULT mu3_io4_poll(void *ctx, struct io4_state *state);
static const struct io4_ops mu3_io4_ops = {
.poll = mu3_io4_poll,
};
HRESULT mu3_io4_hook_init(void)
{
HRESULT hr;
hr = io4_hook_init(&mu3_io4_ops, NULL);
if (FAILED(hr)) {
return hr;
}
return mu3_io_init();
}
static HRESULT mu3_io4_poll(void *ctx, struct io4_state *state)
{
uint8_t opbtn;
uint8_t left;
uint8_t right;
int16_t lever;
HRESULT hr;
memset(state, 0, sizeof(*state));
hr = mu3_io_poll();
if (FAILED(hr)) {
return hr;
}
opbtn = 0;
left = 0;
right = 0;
lever = 0;
mu3_io_get_opbtns(&opbtn);
mu3_io_get_gamebtns(&left, &right);
mu3_io_get_lever(&lever);
if (opbtn & MU3_IO_OPBTN_TEST) {
state->buttons[0] |= IO4_BUTTON_TEST;
}
if (opbtn & MU3_IO_OPBTN_SERVICE) {
state->buttons[0] |= IO4_BUTTON_SERVICE;
}
if (left & MU3_IO_GAMEBTN_1) {
state->buttons[0] |= 1 << 0;
}
if (left & MU3_IO_GAMEBTN_2) {
state->buttons[0] |= 1 << 5;
}
if (left & MU3_IO_GAMEBTN_3) {
state->buttons[0] |= 1 << 4;
}
if (right & MU3_IO_GAMEBTN_1) {
state->buttons[0] |= 1 << 1;
}
if (right & MU3_IO_GAMEBTN_2) {
state->buttons[1] |= 1 << 0;
}
if (right & MU3_IO_GAMEBTN_3) {
state->buttons[0] |= 1 << 15;
}
if (left & MU3_IO_GAMEBTN_MENU) {
state->buttons[1] |= 1 << 14;
}
if (right & MU3_IO_GAMEBTN_MENU) {
state->buttons[0] |= 1 << 13;
}
if (!(left & MU3_IO_GAMEBTN_SIDE)) {
state->buttons[1] |= 1 << 15; /* L-Side, active-low */
}
if (!(right & MU3_IO_GAMEBTN_SIDE)) {
state->buttons[0] |= 1 << 14; /* R-Side, active-low */
}
/* Lever increases right-to-left, not left-to-right.
Use 0x7FFF as the center point instead of 0x8000; the latter would
overflow when the lever pos is INT16_MIN. */
state->adcs[0] = 0x7FFF - lever;
return S_OK;
}