fgo: fgohook finally added

Credits:
- Coburn
- domeori
- Mitsuhide
- OLEG
- rakisaionji

fgohook/io4.c

@@ -0,0 +1,104 @@
+#include <windows.h>
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "board/io4.h"
+
+#include "fgohook/fgo-dll.h"
+
+#include "util/dprintf.h"
+
+static HRESULT fgo_io4_poll(void *ctx, struct io4_state *state);
+static uint16_t coins;
+
+static const struct io4_ops fgo_io4_ops = {
+    .poll = fgo_io4_poll,
+};
+
+HRESULT fgo_io4_hook_init(const struct io4_config *cfg)
+{
+    HRESULT hr;
+
+    assert(fgo_dll.init != NULL);
+
+    hr = io4_hook_init(cfg, &fgo_io4_ops, NULL);
+
+    if (FAILED(hr)) {
+        return hr;
+    }
+
+    return fgo_dll.init();
+}
+
+static HRESULT fgo_io4_poll(void *ctx, struct io4_state *state)
+{
+    uint8_t opbtn;
+    uint8_t gamebtn;
+    int16_t stick_x;
+    int16_t stick_y;
+    HRESULT hr;
+
+    assert(fgo_dll.poll != NULL);
+    assert(fgo_dll.get_opbtns != NULL);
+    assert(fgo_dll.get_gamebtns != NULL);
+    assert(fgo_dll.get_analogs != NULL);
+
+    memset(state, 0, sizeof(*state));
+
+    hr = fgo_dll.poll();
+
+    if (FAILED(hr)) {
+        return hr;
+    }
+
+    opbtn = 0;
+    gamebtn = 0;
+    stick_x = 0;
+    stick_y = 0;
+
+    fgo_dll.get_opbtns(&opbtn);
+    fgo_dll.get_gamebtns(&gamebtn);
+    fgo_dll.get_analogs(&stick_x, &stick_y);
+
+    if (opbtn & FGO_IO_OPBTN_TEST) {
+        state->buttons[0] |= IO4_BUTTON_TEST;
+    }
+
+    if (opbtn & FGO_IO_OPBTN_SERVICE) {
+        state->buttons[0] |= IO4_BUTTON_SERVICE;
+    }
+
+    if (opbtn & FGO_IO_OPBTN_COIN) {
+        coins++;
+    }
+    state->chutes[0] = coins << 8;
+
+    if (gamebtn & FGO_IO_GAMEBTN_SPEED_UP) {
+        state->buttons[0] |= 1 << 4;
+    }
+
+    if (gamebtn & FGO_IO_GAMEBTN_TARGET) {
+        state->buttons[0] |= 1 << 5;
+    }
+
+    if (gamebtn & FGO_IO_GAMEBTN_ATTACK) {
+        state->buttons[0] |= 1 << 1;
+    }
+
+    if (gamebtn & FGO_IO_GAMEBTN_NOBLE_PHANTASHM) {
+        state->buttons[0] |= 1 << 0;
+    }
+
+    if (gamebtn & FGO_IO_GAMEBTN_CAMERA) {
+        state->buttons[0] |= 1 << 14;
+    }
+
+    /* Stick x and y movement */
+
+    state->adcs[0] = 0x8000 - stick_x;
+    state->adcs[4] = 0x8000 + stick_y;
+
+    return S_OK;
+}