From b1597174de1c1f038382e8839431d4177809bc0a Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Fri, 15 Dec 2023 00:24:38 +0200
Subject: [PATCH] standalone: update gun support

---
 frontend/menu.c       | 11 +++++++----
 frontend/pl_gun_ts.c  |  4 ++--
 frontend/plugin_lib.c | 46 ++++++++++++++++++++++++++++++++++++-------
 frontend/plugin_lib.h |  1 -
 4 files changed, 48 insertions(+), 14 deletions(-)

diff --git a/frontend/menu.c b/frontend/menu.c
index 6f74d451..2b0d2cfd 100644
--- a/frontend/menu.c
+++ b/frontend/menu.c
@@ -316,14 +316,16 @@ static void menu_sync_config(void)
 
 	switch (in_type_sel1) {
 	case 1:  in_type[0] = PSE_PAD_TYPE_ANALOGPAD; break;
-	case 2:  in_type[0] = PSE_PAD_TYPE_NEGCON;    break;
-	case 3:  in_type[0] = PSE_PAD_TYPE_NONE;      break;
+	case 2:  in_type[0] = PSE_PAD_TYPE_GUNCON;    break;
+	case 3:  in_type[0] = PSE_PAD_TYPE_GUN;       break;
+	case 4:  in_type[0] = PSE_PAD_TYPE_NONE;      break;
 	default: in_type[0] = PSE_PAD_TYPE_STANDARD;
 	}
 	switch (in_type_sel2) {
 	case 1:  in_type[1] = PSE_PAD_TYPE_ANALOGPAD; break;
-	case 2:  in_type[1] = PSE_PAD_TYPE_NEGCON;    break;
-	case 3:  in_type[1] = PSE_PAD_TYPE_NONE;      break;
+	case 2:  in_type[1] = PSE_PAD_TYPE_GUNCON;    break;
+	case 3:  in_type[1] = PSE_PAD_TYPE_GUN;       break;
+	case 4:  in_type[1] = PSE_PAD_TYPE_NONE;      break;
 	default: in_type[1] = PSE_PAD_TYPE_STANDARD;
 	}
 	if (in_evdev_allow_abs_only != allow_abs_only_old) {
@@ -1217,6 +1219,7 @@ static const char *men_in_type_sel[] = {
 	"Standard (SCPH-1080)",
 	"Analog (SCPH-1150)",
 	"GunCon",
+	"Konami Gun",
 	"None",
 	NULL
 };
diff --git a/frontend/pl_gun_ts.c b/frontend/pl_gun_ts.c
index 6c05b7c3..6e7fa940 100644
--- a/frontend/pl_gun_ts.c
+++ b/frontend/pl_gun_ts.c
@@ -54,7 +54,7 @@ int pl_gun_ts_update_raw(struct tsdev *ts, int *x, int *y, int *p)
 			gun_y = (sy - ts_offs_y) * ts_multiplier_y >> 10;
 			limit(gun_x, 0, 1023);
 			limit(gun_y, 0, 1023);
-			if (sp && !(g_opts & OPT_TSGUN_NOTRIGGER))
+			if (sp)
 				gun_in |= 1;
 			else
 				gun_in &= ~1;
@@ -78,7 +78,7 @@ void pl_gun_ts_update(struct tsdev *ts, int *x, int *y, int *in)
 
 	*x = gun_x;
 	*y = gun_y;
-	*in = gun_in | in_state_gun;
+	*in = gun_in;
 }
 
 void pl_set_gun_rect(int x, int y, int w, int h)
diff --git a/frontend/plugin_lib.c b/frontend/plugin_lib.c
index 1cbfdb0e..0deab157 100644
--- a/frontend/plugin_lib.c
+++ b/frontend/plugin_lib.c
@@ -34,6 +34,7 @@
 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
 #include "../libpcsxcore/psxmem_map.h"
 #include "../libpcsxcore/gpu.h"
+#include "../libpcsxcore/r3000a.h"
 
 #define HUD_HEIGHT 10
 
@@ -46,7 +47,6 @@ int in_adev[2] = { -1, -1 }, in_adev_axis[2][2] = {{ 0, 1 }, { 0, 1 }};
 int in_adev_is_nublike[2];
 unsigned short in_keystate[8];
 int in_mouse[8][2];
-int in_state_gun;
 int in_enable_vibration;
 void *tsdev;
 void *pl_vout_buf;
@@ -613,12 +613,14 @@ static void update_input(void)
 {
 	int actions[IN_BINDTYPE_COUNT] = { 0, };
 	unsigned int emu_act;
+	int in_state_gun;
+	int i;
 
 	in_update(actions);
 	if (in_type[0] == PSE_PAD_TYPE_ANALOGJOY || in_type[0] == PSE_PAD_TYPE_ANALOGPAD)
 		update_analogs();
 	emu_act = actions[IN_BINDTYPE_EMU];
-	in_state_gun = (emu_act & SACTION_GUN_MASK) >> SACTION_GUN_TRIGGER;
+	in_state_gun = emu_act & SACTION_GUN_MASK;
 
 	emu_act &= ~SACTION_GUN_MASK;
 	if (emu_act) {
@@ -629,12 +631,35 @@ static void update_input(void)
 	}
 	emu_set_action(emu_act);
 
-	in_keystate[0] = actions[IN_BINDTYPE_PLAYER12];
+	in_keystate[0] = actions[IN_BINDTYPE_PLAYER12] & 0xffff;
+	in_keystate[1] = (actions[IN_BINDTYPE_PLAYER12] >> 16) & 0xffff;
 
-	// fixme
-	//if (in_type[0] == PSE_PAD_TYPE_GUNCON && tsdev)
-	//	pl_gun_ts_update(tsdev, xn, yn, in);
-	//	in_analog_left[0][0] = xn
+	if (tsdev) for (i = 0; i < 2; i++) {
+		int in = 0, x = 0, y = 0, trigger;;
+		if (in_type[i] != PSE_PAD_TYPE_GUN
+		    && in_type[i] != PSE_PAD_TYPE_GUNCON)
+			continue;
+		trigger = in_type[i] == PSE_PAD_TYPE_GUN
+			? (1 << DKEY_SQUARE) : (1 << DKEY_CIRCLE);
+
+		pl_gun_ts_update(tsdev, &x, &y, &in);
+		in_analog_left[i][0] = 65536;
+		in_analog_left[i][1] = 65536;
+		if (in && !(in_state_gun & (1 << SACTION_GUN_TRIGGER2))) {
+			in_analog_left[i][0] = x;
+			in_analog_left[i][1] = y;
+			if (!(g_opts & OPT_TSGUN_NOTRIGGER))
+				in_state_gun |= (1 << SACTION_GUN_TRIGGER);
+		}
+		in_keystate[i] = 0;
+		if (in_state_gun & ((1 << SACTION_GUN_TRIGGER)
+					| (1 << SACTION_GUN_TRIGGER2)))
+			in_keystate[i] |= trigger;
+		if (in_state_gun & (1 << SACTION_GUN_A))
+			in_keystate[i] |= (1 << DKEY_START);
+		if (in_state_gun & (1 << SACTION_GUN_B))
+			in_keystate[i] |= (1 << DKEY_CROSS);
+	}
 }
 #else /* MAEMO */
 extern void update_input(void);
@@ -642,6 +667,13 @@ extern void update_input(void);
 
 void pl_gun_byte2(int port, unsigned char byte)
 {
+	if (!tsdev || in_type[port] != PSE_PAD_TYPE_GUN || !(byte & 0x10))
+		return;
+	if (in_analog_left[port][0] == 65536)
+		return;
+
+	psxScheduleIrq10(4, in_analog_left[port][0] * 1629 / 1024,
+		in_analog_left[port][1] * psx_h / 1024);
 }
 
 #define MAX_LAG_FRAMES 3
diff --git a/frontend/plugin_lib.h b/frontend/plugin_lib.h
index 5b4af659..4eab8660 100644
--- a/frontend/plugin_lib.h
+++ b/frontend/plugin_lib.h
@@ -23,7 +23,6 @@ enum {
 	DKEY_CROSS,
 	DKEY_SQUARE,
 };
-extern int in_state_gun;
 extern int in_type[8];
 extern int multitap1;
 extern int multitap2;
-- 
2.39.5