void palette_init(running_machine *machine)
{
palette_private *palette = auto_malloc(sizeof(*palette));
/* request cleanup */
machine->palette_data = palette;
add_exit_callback(machine, palette_exit);
/* reset all our data */
memset(palette, 0, sizeof(*palette));
palette->format = machine->screen[0].format;
/* determine the color mode */
switch (palette->format)
{
case BITMAP_FORMAT_INDEXED16:
/* indexed modes are fine for everything */
break;
case BITMAP_FORMAT_RGB15:
case BITMAP_FORMAT_RGB32:
/* RGB modes can't use color tables */
assert(machine->drv->color_table_len == 0);
break;
case BITMAP_FORMAT_INVALID:
/* invalid format means no palette - or at least it should */
assert(machine->drv->total_colors == 0);
assert(machine->drv->color_table_len == 0);
return;
default:
fatalerror("Unsupported screen bitmap format!");
break;
}
/* allocate all the data structures */
if (machine->drv->total_colors > 0)
{
int numcolors;
allocate_palette(machine, palette);
allocate_color_tables(machine, palette);
allocate_shadow_tables(machine, palette);
/* set up save/restore of the palette */
numcolors = palette_get_num_colors(machine->palette);
palette->save_pen = auto_malloc(sizeof(*palette->save_pen) * numcolors);
palette->save_bright = auto_malloc(sizeof(*palette->save_bright) * numcolors);
state_save_register_global_pointer(palette->save_pen, numcolors);
state_save_register_global_pointer(palette->save_bright, numcolors);
state_save_register_func_presave(palette_presave);
state_save_register_func_postload(palette_postload);
}
}
void device_palette_interface::interface_pre_start()
{
// allocate the palette
u32 numentries = palette_entries();
allocate_palette(numentries);
allocate_color_tables();
allocate_shadow_tables();
// allocate indirection tables
int indirect_colors = palette_indirect_entries();
if (indirect_colors > 0)
{
m_indirect_colors.resize(indirect_colors);
for (int color = 0; color < indirect_colors; color++)
{
// alpha = 0 ensures change is detected the first time set_indirect_color() is called
m_indirect_colors[color] = rgb_t::transparent();
}
m_indirect_pens.resize(numentries);
for (int pen = 0; pen < numentries; pen++)
m_indirect_pens[pen] = pen % indirect_colors;
}
}
void palette_init(running_machine *machine)
{
int format;
palette_private *palette = auto_malloc(sizeof(*palette));
const device_config *device = video_screen_first(machine->config);
/* get the format from the first screen, or use BITMAP_FORMAT_INVALID, if screenless */
if (device != NULL)
{
screen_config *config = device->inline_config;
format = config->format;
}
else
format = BITMAP_FORMAT_INVALID;
/* request cleanup */
machine->palette_data = palette;
add_exit_callback(machine, palette_exit);
/* reset all our data */
memset(palette, 0, sizeof(*palette));
palette->format = format;
/* determine the color mode */
switch (format)
{
case BITMAP_FORMAT_INDEXED16:
case BITMAP_FORMAT_RGB15:
case BITMAP_FORMAT_RGB32:
/* indexed and RGB modes are fine for everything */
break;
case BITMAP_FORMAT_INVALID:
/* invalid format means no palette - or at least it should */
assert(machine->config->total_colors == 0);
return;
default:
fatalerror("Unsupported screen bitmap format!");
break;
}
/* allocate all the data structures */
if (machine->config->total_colors > 0)
{
int numcolors;
allocate_palette(machine, palette);
allocate_color_tables(machine, palette);
allocate_shadow_tables(machine, palette);
/* set up save/restore of the palette */
numcolors = palette_get_num_colors(machine->palette);
palette->save_pen = auto_malloc(sizeof(*palette->save_pen) * numcolors);
palette->save_bright = auto_malloc(sizeof(*palette->save_bright) * numcolors);
state_save_register_global_pointer(palette->save_pen, numcolors);
state_save_register_global_pointer(palette->save_bright, numcolors);
state_save_register_presave(machine, palette_presave, palette);
state_save_register_postload(machine, palette_postload, palette);
}
}