static void ui_gfx_count_devices(running_machine &machine, ui_gfx_state &state)
{
palette_device_iterator pal_iter(machine.root_device());
gfx_interface_iterator gfx_iter(machine.root_device());
// count the palette devices
state.palette.devcount = pal_iter.count();
// set the pointer to the first palette
if (state.palette.devcount > 0)
palette_set_device(machine, state);
// count the gfx devices
state.gfxset.devcount = 0;
int tempcount = gfx_iter.count();
// count the gfx sets in each device, skipping devices with none
if (tempcount > 0)
{
device_gfx_interface *interface;
int i, count;
for (i = 0, interface = gfx_iter.first();
i < tempcount && state.gfxset.devcount < MAX_GFX_DECODERS;
i++, interface = gfx_iter.next())
{
for (count = 0; count < MAX_GFX_ELEMENTS && interface->gfx(count) != nullptr; count++) { }
// count = index of first NULL
if (count > 0)
{
state.gfxdev[state.gfxset.devcount].interface = interface;
state.gfxdev[state.gfxset.devcount].setcount = count;
state.gfxset.devcount++;
}
}
}
state.started = true;
}
static void palette_set_device(running_machine &machine, ui_gfx_state &state)
{
palette_interface_iterator pal_iter(machine.root_device());
state.palette.interface = pal_iter.byindex(state.palette.devindex);
}