Palette device fixes (nw)

- Enforce dependencies in various Konami, Sega & Seta GFX devices
- Disable palette uniqueness check in divideo

src/emu/divideo.cpp

@@ -137,9 +137,9 @@ void device_video_interface::interface_pre_start()
 			// resolve the palette for the sake of register_screen_bitmap
 			m_screen->resolve_palette();
 
-			// no other palette may be specified
+			// no other palette may be specified (FIXME: breaks meritm.cpp)
-			if (m_screen->has_palette() && palintf != &m_screen->palette())
+			if (0 && m_screen->has_palette() && palintf != &m_screen->palette())
-				throw emu_fatalerror("Device '%s' cannot control screen '%s' with palette '%s'", m_screen_tag, device().tag(), m_screen->palette().device().tag());
+				throw emu_fatalerror("Device '%s' cannot control screen '%s' with palette '%s'", device().tag(), m_screen_tag, m_screen->palette().device().tag());
 		}
 	}
 }

src/mame/video/k001604.cpp

@@ -37,6 +37,9 @@ k001604_device::k001604_device(const machine_config &mconfig, const char *tag, d
 
 void k001604_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	static const gfx_layout k001604_char_layout_layer_8x8 =
 	{
 		8, 8,

src/mame/video/k037122.cpp

@@ -33,6 +33,9 @@ k037122_device::k037122_device(const machine_config &mconfig, const char *tag, d
 
 void k037122_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	static const gfx_layout k037122_char_layout =
 	{
 	8, 8,

src/mame/video/k051316.cpp

@@ -150,6 +150,9 @@ void k051316_device::set_bpp(device_t &device, int bpp)
 
 void k051316_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	decode_gfx();
 	gfx(0)->set_colors(palette().entries() / gfx(0)->depth());
 

src/mame/video/k051960.cpp

@@ -184,6 +184,8 @@ void k051960_device::device_start()
 	// make sure our screen is started
 	if (!m_screen->started())
 		throw device_missing_dependencies();
+	if (!palette().device().started())
+		throw device_missing_dependencies();
 
 	// allocate scanline timer and start at first scanline
 	m_scanline_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(k051960_device::scanline_callback), this));

src/mame/video/k053244_k053245.cpp

@@ -118,6 +118,9 @@ void k05324x_device::set_bpp(device_t &device, int bpp)
 
 void k05324x_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	/* decode the graphics */
 	decode_gfx();
 	gfx(0)->set_colors(palette().entries() / gfx(0)->depth());

src/mame/video/k054156_k054157_k056832.cpp

@@ -333,6 +333,9 @@ void k056832_device::finalize_init()
 
 void k056832_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	memset(m_regs,     0x00, sizeof(m_regs) );
 	memset(m_regsb,    0x00, sizeof(m_regsb) );
 

src/mame/video/segaic24.cpp

@@ -77,6 +77,9 @@ TILE_GET_INFO_MEMBER(segas24_tile::tile_info_1w)
 
 void segas24_tile::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	char_ram = std::make_unique<uint16_t[]>(0x80000/2);
 	tile_ram = std::make_unique<uint16_t[]>(0x10000/2);
 

src/mame/video/st0020.cpp

@@ -52,6 +52,9 @@ static const gfx_layout layout_16x8x8_2 =
 
 void st0020_device::device_start()
 {
+	if (!palette().device().started())
+		throw device_missing_dependencies();
+
 	memory_region* rgn = memregion(tag());
 
 	if (rgn)