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segas18 share same palette with megavdp, that is fixed now (nw)

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This commit is contained in:
Miodrag Milanovic 2014-03-02 12:37:36 +00:00
parent 5db424a2ee
commit d80d26245c
3 changed files with 14 additions and 1 deletions
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1
src/mame/drivers/segas18.c
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@ -1239,6 +1239,7 @@ static MACHINE_CONFIG_START( system18, segas18_state )
sega_genesis_vdp_device::set_genesis_vdp_lv4irqline_callback(*device, DEVCB2_WRITELINE(segas18_state, genesis_vdp_lv4irqline_callback_segas18));
sega_genesis_vdp_device::set_genesis_vdp_alt_timing(*device, 1);
sega_genesis_vdp_device::set_genesis_vdp_palwrite_base(*device, 0x2000);
sega_genesis_vdp_device::static_set_palette_tag(*device,":palette");
MCFG_TIMER_ADD_SCANLINE("scantimer", megadriv_scanline_timer_callback_alt_timing, "screen", 0, 1)

11
src/mame/machine/megavdp.c
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@ -32,6 +32,17 @@ sega_genesis_vdp_device::sega_genesis_vdp_device(const machine_config &mconfig,
m_palwrite_base = -1;
}
//-------------------------------------------------
// static_set_palette_tag: Set the tag of the
// palette device
//-------------------------------------------------
void sega_genesis_vdp_device::static_set_palette_tag(device_t &device, const char *tag)
{
downcast<sega_genesis_vdp_device &>(device).m_palette.set_tag(tag);
}
static MACHINE_CONFIG_FRAGMENT( sega_genesis_vdp )
MCFG_PALETTE_ADD("palette", 0x200)
MACHINE_CONFIG_END

3
src/mame/machine/megavdp.h
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@ -161,7 +161,8 @@ public:
template<class _Object> static devcb2_base &set_genesis_vdp_lv4irqline_callback(device_t &device, _Object object) { return downcast<sega_genesis_vdp_device &>(device).m_genesis_vdp_lv4irqline_callback.set_callback(object); }
static void set_genesis_vdp_alt_timing(device_t &device, int use_alt_timing);
static void set_genesis_vdp_palwrite_base(device_t &device, int palwrite_base);
static void static_set_palette_tag(device_t &device, const char *tag);
int m_use_alt_timing; // use MAME scanline timer instead, render only one scanline to a single line buffer, to be rendered by a partial update call.. experimental
int m_palwrite_base; // if we want to write to the actual MAME palette..