From eb2eef927a27ffc2733270e6a969025128732b80 Mon Sep 17 00:00:00 2001
From: Dniel97 <Dniel97@noreply.gitea.tendokyu.moe>
Date: Mon, 4 Sep 2023 23:31:52 +0200
Subject: [PATCH] idac: added left and right button mapping

---
 dist/idac/segatools.ini |  5 +++++
 idacio/config.c         |  2 ++
 idacio/config.h         |  2 ++
 idacio/di.c             | 26 ++++++++++++++++++++++++++
 4 files changed, 35 insertions(+)

diff --git a/dist/idac/segatools.ini b/dist/idac/segatools.ini
index a99f2f8..8b72d4e 100644
--- a/dist/idac/segatools.ini
+++ b/dist/idac/segatools.ini
@@ -144,6 +144,11 @@ accelAxis=Y
 ; numbered from 1; some software numbers buttons from 0.
 start=1
 viewChg=2
+; DPad is already emulated, but in order to trigger "Time Up" and exit the
+; course you need to press both left and right on the DPad at the same time.
+; This is not possible on most devices, so we set the left and right button again.
+left=7
+right=8
 ; Button mappings for the simulated six-speed shifter.
 shiftDn=5
 shiftUp=6
diff --git a/idacio/config.c b/idacio/config.c
index 934caf4..48410c5 100644
--- a/idacio/config.c
+++ b/idacio/config.c
@@ -50,6 +50,8 @@ void idac_di_config_load(struct idac_di_config *cfg, const wchar_t *filename)
 
     cfg->start = GetPrivateProfileIntW(L"dinput", L"start", 0, filename);
     cfg->view_chg = GetPrivateProfileIntW(L"dinput", L"viewChg", 0, filename);
+    cfg->left = GetPrivateProfileIntW(L"dinput", L"left", 0, filename);
+    cfg->right = GetPrivateProfileIntW(L"dinput", L"right", 0, filename);
     cfg->shift_dn = GetPrivateProfileIntW(L"dinput", L"shiftDn", 0, filename);
     cfg->shift_up = GetPrivateProfileIntW(L"dinput", L"shiftUp", 0, filename);
 
diff --git a/idacio/config.h b/idacio/config.h
index 4b8a3eb..8f6517a 100644
--- a/idacio/config.h
+++ b/idacio/config.h
@@ -15,6 +15,8 @@ struct idac_di_config {
     wchar_t accel_axis[16];
     uint8_t start;
     uint8_t view_chg;
+    uint8_t left;
+    uint8_t right;
     uint8_t shift_dn;
     uint8_t shift_up;
     uint8_t gear[6];
diff --git a/idacio/di.c b/idacio/di.c
index 2494082..1edaf9b 100644
--- a/idacio/di.c
+++ b/idacio/di.c
@@ -65,6 +65,8 @@ static uint8_t idac_di_shift_dn;
 static uint8_t idac_di_shift_up;
 static uint8_t idac_di_view_chg;
 static uint8_t idac_di_start;
+static uint8_t idac_di_left;
+static uint8_t idac_di_right;
 static uint8_t idac_di_gear[6];
 static bool idac_di_reverse_brake_axis;
 static bool idac_di_reverse_accel_axis;
@@ -235,6 +237,18 @@ static HRESULT idac_di_config_apply(const struct idac_di_config *cfg)
         return E_INVALIDARG;
     }
 
+    if (cfg->left > 32) {
+        dprintf("Wheel: Invalid left button: %i\n", cfg->left);
+
+        return E_INVALIDARG;
+    }
+
+    if (cfg->right > 32) {
+        dprintf("Wheel: Invalid right button: %i\n", cfg->right);
+
+        return E_INVALIDARG;
+    }
+
     if (cfg->shift_dn > 32) {
         dprintf("Wheel: Invalid shift down button: %i\n", cfg->shift_dn);
 
@@ -266,6 +280,8 @@ static HRESULT idac_di_config_apply(const struct idac_di_config *cfg)
     dprintf("Wheel: Accel axis  . . . . : %S\n", accel_axis->name);
     dprintf("Wheel: Start button  . . . : %i\n", cfg->start);
     dprintf("Wheel: View Change button  : %i\n", cfg->view_chg);
+    dprintf("Wheel: Left button . . . . : %i\n", cfg->left);
+    dprintf("Wheel: Right button  . . . : %i\n", cfg->right);
     dprintf("Wheel: Shift Down button . : %i\n", cfg->shift_dn);
     dprintf("Wheel: Shift Up button . . : %i\n", cfg->shift_up);
     dprintf("Wheel: Reverse Brake Axis  : %i\n", cfg->reverse_brake_axis);
@@ -290,6 +306,8 @@ static HRESULT idac_di_config_apply(const struct idac_di_config *cfg)
     idac_di_off_accel = accel_axis->off;
     idac_di_start = cfg->start;
     idac_di_view_chg = cfg->view_chg;
+    idac_di_left = cfg->left;
+    idac_di_right = cfg->right;
     idac_di_shift_dn = cfg->shift_dn;
     idac_di_shift_up = cfg->shift_up;
     idac_di_reverse_brake_axis = cfg->reverse_brake_axis;
@@ -398,6 +416,14 @@ static void idac_di_get_buttons(uint8_t *gamebtn_out)
         gamebtn |= IDAC_IO_GAMEBTN_VIEW_CHANGE;
     }
 
+    if (idac_di_left && state.st.rgbButtons[idac_di_left - 1]) {
+        gamebtn |= IDAC_IO_GAMEBTN_LEFT;
+    }
+
+    if (idac_di_right && state.st.rgbButtons[idac_di_right - 1]) {
+        gamebtn |= IDAC_IO_GAMEBTN_RIGHT;
+    }
+
     *gamebtn_out = gamebtn;
 }