static void video_start_common(running_machine &machine)
{
galaxold_state *state = machine.driver_data<galaxold_state>();
state->m_modify_charcode = 0;
state->m_modify_spritecode = 0;
state->m_modify_color = 0;
state->m_modify_ypos = 0;
state->m_mooncrst_gfxextend = 0;
state->m_draw_bullets = 0;
state->m_draw_background = galaxold_draw_background;
state->m_background_enable = 0;
state->m_background_blue = 0;
state->m_background_red = 0;
state->m_background_green = 0;
state->m_draw_stars = noop_draw_stars;
state->m_flipscreen_x = 0;
state->m_flipscreen_y = 0;
state->m_spriteram2_present = 0;
state_save_register(machine);
}
void galaxian_state::video_start()
{
/* create a tilemap for the background */
if (!m_sfx_tilemap)
{
/* normal galaxian hardware is row-based and individually scrolling columns */
m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(galaxian_state::bg_get_tile_info),this), TILEMAP_SCAN_ROWS, GALAXIAN_XSCALE*8,8, 32,32);
m_bg_tilemap->set_scroll_cols(32);
}
else
{
/* sfx hardware is column-based and individually scrolling rows */
m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(galaxian_state::bg_get_tile_info),this), TILEMAP_SCAN_COLS, GALAXIAN_XSCALE*8,8, 32,32);
m_bg_tilemap->set_scroll_rows(32);
}
m_bg_tilemap->set_transparent_pen(0);
/* initialize globals */
m_flipscreen_x = 0;
m_flipscreen_y = 0;
m_background_enable = 0;
m_background_blue = 0;
m_background_red = 0;
m_background_green = 0;
/* initialize stars */
stars_init();
/* register for save states */
state_save_register();
}
VIDEO_START_MEMBER(blaster_state,blaster)
{
blitter_init(m_blitter_config, memregion("proms")->base());
create_palette_lookup();
state_save_register();
save_item(NAME(m_blaster_color0));
save_item(NAME(m_blaster_video_control));
}
VIDEO_START_MEMBER(williams2_state,williams2)
{
blitter_init(m_blitter_config, nullptr);
/* create the tilemap */
m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(williams2_state::get_tile_info),this), TILEMAP_SCAN_COLS, 24,16, 128,16);
m_bg_tilemap->set_scrolldx(2, 0);
state_save_register();
save_item(NAME(m_tilemap_xscroll));
save_item(NAME(m_williams2_fg_color));
}
VIDEO_START_MEMBER(williams_state,williams2)
{
blitter_init(machine(), m_blitter_config, NULL);
/* allocate paletteram */
m_generic_paletteram_8.allocate(0x400 * 2);
/* create the tilemap */
m_bg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(williams_state::get_tile_info),this), TILEMAP_SCAN_COLS, 24,16, 128,16);
m_bg_tilemap->set_scrolldx(2, 0);
state_save_register(machine());
}
static void video_start_common(running_machine *machine, tilemap_mapper_callback get_memory_offset)
{
bg_tilemap = tilemap_create(get_tile_info,get_memory_offset,TILEMAP_TYPE_PEN,8,8,32,32);
tilemap_set_scrolldx(bg_tilemap, 0, -128);
tilemap_set_transparent_pen(bg_tilemap,0);
modify_charcode = 0;
modify_spritecode = 0;
modify_color = 0;
modify_ypos = 0;
mooncrst_gfxextend = 0;
draw_bullets = 0;
draw_background = galaxian_draw_background;
background_enable = 0;
background_blue = 0;
background_red = 0;
background_green = 0;
draw_stars = noop_draw_stars;
flipscreen_x = 0;
flipscreen_y = 0;
spriteram2_present = 0;
spritevisiblearea = &_spritevisiblearea;
spritevisibleareaflipx = &_spritevisibleareaflipx;
color_mask = (machine->gfx[0]->color_granularity == 4) ? 7 : 3;
state_save_register();
}
void galaxold_state::video_start_common()
{
m_modify_charcode = 0;
m_modify_spritecode = 0;
m_modify_color = 0;
m_modify_ypos = 0;
m_draw_bullets = 0;
m_draw_background = &galaxold_state::galaxold_draw_background;
m_background_enable = 0;
m_background_blue = 0;
m_background_red = 0;
m_background_green = 0;
m_draw_stars = &galaxold_state::noop_draw_stars;
m_flipscreen_x = 0;
m_flipscreen_y = 0;
m_spriteram2_present = 0;
state_save_register();
}
VIDEO_START_MEMBER(williams_state,blaster)
{
blitter_init(machine(), m_blitter_config, memregion("proms")->base());
create_palette_lookup(machine());
state_save_register(machine());
}
VIDEO_START_MEMBER(williams_state,williams)
{
blitter_init(machine(), m_blitter_config, NULL);
create_palette_lookup(machine());
state_save_register(machine());
}
VIDEO_START_MEMBER(williams_state,williams)
{
blitter_init(m_blitter_config, nullptr);
create_palette_lookup();
state_save_register();
}
