vmu: pass bus id and port to callback

core/hw/maple/maple_devs.cpp

@@ -644,8 +644,7 @@ struct maple_sega_vmu: maple_base
 							}
 						}
 						config->SetImage(lcd_data_decoded);
-						if (bus_id <= 3 && bus_port <= 1)
-							push_vmu_screen(bus_id * 2 + bus_port, lcd_data_decoded);
+						push_vmu_screen(bus_id, bus_port, lcd_data_decoded);
 #if 0
 						// Update LCD window
 						if (!dev->lcd.visible)

core/hw/maple/maple_devs.h

@@ -102,5 +102,5 @@ maple_device* maple_Create(MapleDeviceType type);
 #ifndef TARGET_PANDORA
 int get_mic_data(u8* buffer); //implemented in Android.cpp
 #endif
-int push_vmu_screen(int vmu_id, u8* buffer); // vmu_id: 0-7
+void push_vmu_screen(int bus_id, int bus_port, u8* buffer);
 #define MAPLE_PORTS 4

core/rend/gui.cpp

@@ -1511,14 +1511,15 @@ static u32 vmu_lcd_data[8][48 * 32];
 static bool vmu_lcd_status[8];
 static ImTextureID vmu_lcd_tex_ids[8];
 
-int push_vmu_screen(int vmu_id, u8* buffer)
+void push_vmu_screen(int bus_id, int bus_port, u8* buffer)
 {
+	int vmu_id = bus_id * 2 + bus_port;
+	if (vmu_id < 0 || vmu_id >= ARRAY_SIZE(vmu_lcd_data))
+		return;
 	u32 *p = &vmu_lcd_data[vmu_id][0];
 	for (int i = 0; i < ARRAY_SIZE(vmu_lcd_data[vmu_id]); i++, buffer++)
 		*p++ = *buffer != 0 ? 0xFFFFFFFFu : 0xFF000000u;
 	vmu_lcd_status[vmu_id] = true;
-
-	return 0;
 }
 
 static const int vmu_coords[8][2] = {