void pang_gfxctrl_w(int offset, int data)
{
if (errorlog) fprintf(errorlog,"PC %04x: pang_gfxctrl_w %02x\n",cpu_get_pc(),data);
{
char baf[40];
sprintf(baf,"%02x",data);
// usrintf_showmessage(baf);
}
/* bit 0 is unknown (used, maybe back color enable?) */
/* bit 1 is coin counter */
coin_counter_w(0,data & 2);
/* bit 2 is flip screen */
if (flipscreen != (data & 0x04))
{
flipscreen = data & 0x04;
tilemap_set_flip(ALL_TILEMAPS,flipscreen ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0);
}
/* bit 3 is unknown (used, e.g. marukin pulses it on the title screen) */
/* bit 4 selects OKI M6295 bank */
OKIM6295_set_bank_base(0, ALL_VOICES, (data & 0x10) ? 0x40000 : 0x00000);
/* bit 5 is palette RAM bank selector (doesn't apply to mgakuen) */
paletteram_bank = data & 0x20;
/* bits 6 and 7 are unknown, used in several places. At first I thought */
/* they were bg and sprites enable, but this screws up spang (screen flickers */
/* every time you pop a bubble). However, not using them as enable bits screws */
/* up marukin - you can see partially built up screens during attract mode. */
}
static void updateflip(void)
{
int min_x,max_x,min_y,max_y;
tilemap_set_flip(ALL_TILEMAPS,(TILEMAP_FLIPX & flip_screen_x) | (TILEMAP_FLIPY & flip_screen_y));
min_x = Machine->drv->default_visible_area.min_x;
max_x = Machine->drv->default_visible_area.max_x;
min_y = Machine->drv->default_visible_area.min_y;
max_y = Machine->drv->default_visible_area.max_y;
if (flip_screen_x)
{
int temp;
temp = Machine->drv->screen_width - min_x - 1;
min_x = Machine->drv->screen_width - max_x - 1;
max_x = temp;
}
if (flip_screen_y)
{
int temp;
temp = Machine->drv->screen_height - min_y - 1;
min_y = Machine->drv->screen_height - max_y - 1;
max_y = temp;
}
set_visible_area(min_x,max_x,min_y,max_y);
}
static void namcos1_set_flipscreen(int flip)
{
int i;
int pos_x[] = {0x0b0,0x0b2,0x0b3,0x0b4};
int pos_y[] = {0x108,0x108,0x108,0x008};
int neg_x[] = {0x1d0,0x1d2,0x1d3,0x1d4};
int neg_y[] = {0x1e8,0x1e8,0x1e8,0x0e8};
flipscreen = flip;
if(!flip)
{
for ( i = 0; i < 4; i++ ) {
scrolloffsX[i] = pos_x[i];
scrolloffsY[i] = pos_y[i];
}
}
else
{
for ( i = 0; i < 4; i++ ) {
scrolloffsX[i] = neg_x[i];
scrolloffsY[i] = neg_y[i];
}
}
tilemap_set_flip(ALL_TILEMAPS,flipscreen ? TILEMAP_FLIPX|TILEMAP_FLIPY : 0);
}
void cave_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
{
int pri;
int layers_ctrl = -1;
int glob_flipx = READ_WORD(&cave_videoregs[0]) & 0x8000;
int glob_flipy = READ_WORD(&cave_videoregs[2]) & 0x8000;
tilemap_set_flip(ALL_TILEMAPS, (glob_flipx ? TILEMAP_FLIPX : 0) | (glob_flipy ? TILEMAP_FLIPY : 0) );
tilemap_set_enable( tilemap_0, READ_WORD(&cave_vctrl_0[4]) & 1 );
tilemap_set_scrollx(tilemap_0, 0, READ_WORD(&cave_vctrl_0[0]) );
tilemap_set_scrolly(tilemap_0, 0, READ_WORD(&cave_vctrl_0[2]) );
if (tilemap_1)
{
tilemap_set_enable( tilemap_1, READ_WORD(&cave_vctrl_1[4]) & 1 );
tilemap_set_scrollx(tilemap_1, 0, READ_WORD(&cave_vctrl_1[0]) );
tilemap_set_scrolly(tilemap_1, 0, READ_WORD(&cave_vctrl_1[2]) );
}
if (tilemap_2)
{
tilemap_set_enable( tilemap_2, READ_WORD(&cave_vctrl_2[4]) & 1 );
tilemap_set_scrollx(tilemap_2, 0, READ_WORD(&cave_vctrl_2[0]) );
tilemap_set_scrolly(tilemap_2, 0, READ_WORD(&cave_vctrl_2[2]) );
}
tilemap_update(ALL_TILEMAPS);
palette_init_used_colors();
get_sprite_info();
sprite_update();
if (palette_recalc()) tilemap_mark_all_pixels_dirty(ALL_TILEMAPS);
tilemap_render(ALL_TILEMAPS);
/* Clear the background if at least one of layer 0's tile priorities
is lacking */
if ((layers_ctrl & 0xf) != 0xf) osd_clearbitmap(Machine->scrbitmap);
/* Pen 0 of layer 0's tiles (any priority) goes below anything else */
for ( pri = 0; pri < 4; pri++ )
if ((layers_ctrl&(1<<(pri+0)))&&tilemap_0) tilemap_draw(bitmap, tilemap_0, TILEMAP_IGNORE_TRANSPARENCY | pri);
/* Draw the rest with transparency */
for ( pri = 0; pri < 4; pri++ )
{
if ((layers_ctrl&(1<<(pri+12)))) sprite_draw(sprite_list, pri);
if ((layers_ctrl&(1<<(pri+0)))&&tilemap_0) tilemap_draw(bitmap, tilemap_0, pri);
if ((layers_ctrl&(1<<(pri+4)))&&tilemap_1) tilemap_draw(bitmap, tilemap_1, pri);
if ((layers_ctrl&(1<<(pri+8)))&&tilemap_2) tilemap_draw(bitmap, tilemap_2, pri);
}
}
static WRITE8_HANDLER( pacland_flipscreen_w )
{
int bit = !BIT(offset,11);
/* can't use flip_screen_set() because the visible area is asymmetrical */
flip_screen = bit;
tilemap_set_flip(ALL_TILEMAPS,flip_screen ? (TILEMAP_FLIPX | TILEMAP_FLIPY) : 0);
}
void karnov_flipscreen_w(int data)
{
static int last_flip;
flipscreen=data;
if (flipscreen!=last_flip)
memset(dirty_f,1,0x800);
last_flip=flipscreen;
tilemap_set_flip(ALL_TILEMAPS,flipscreen ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0);
}
void raiden_control_w(int offset, int data)
{
/* All other bits unknown - could be playfield enables */
/* Flipscreen */
if (offset==6) {
flipscreen=data&0x2;
tilemap_set_flip(ALL_TILEMAPS,flipscreen ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0);
}
}
static void taitob_video_control (unsigned char data)
{
#if 0
if (data != video_control)
usrintf_showmessage("video control = %02x",data);
#endif
video_control = data;
if (video_control & 0x80)
framebuffer_page = (~video_control & 0x40) >> 6;
tilemap_set_flip(ALL_TILEMAPS, (video_control & 0x10) ? (TILEMAP_FLIPX | TILEMAP_FLIPY) : 0 );
}
void twincobr_flipscreen(int flip)
{
tilemap_set_flip(ALL_TILEMAPS, (flip ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0));
twincobr_flip_screen = flip;
if (flip) {
scroll_x = -58;
scroll_y = -29;
if (toaplan_main_cpu == 1) scroll_y += 256; /* Wardner */
}
else {
scroll_x = 55;
scroll_y = 30;
}
}
static void draw_edges(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect, int flip, int scroll_mode)
{
madalien_state *state = machine->driver_data<madalien_state>();
rectangle clip_edge1;
rectangle clip_edge2;
clip_edge1 = *cliprect;
clip_edge2 = *cliprect;
if (flip)
{
clip_edge1.min_y = *state->edge1_pos | 0x80;
clip_edge2.max_y = (*state->edge2_pos & 0x7f) ^ 0x7f;
}
else
{
clip_edge1.max_y = (*state->edge1_pos & 0x7f) ^ 0x7f;
clip_edge2.min_y = *state->edge2_pos | 0x80;
}
sect_rect(&clip_edge1, cliprect);
sect_rect(&clip_edge2, cliprect);
tilemap_mark_all_tiles_dirty(state->tilemap_edge1[scroll_mode]);
tilemap_mark_all_tiles_dirty(state->tilemap_edge2[scroll_mode]);
tilemap_set_flip(state->tilemap_edge1[scroll_mode], flip ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
tilemap_set_scrollx(state->tilemap_edge1[scroll_mode], 0, -(*state->scroll & 0xfc));
tilemap_set_scrolly(state->tilemap_edge1[scroll_mode], 0, *state->edge1_pos & 0x7f);
tilemap_set_flip(state->tilemap_edge2[scroll_mode], flip ? TILEMAP_FLIPX : TILEMAP_FLIPY);
tilemap_set_scrollx(state->tilemap_edge2[scroll_mode], 0, -(*state->scroll & 0xfc));
tilemap_set_scrolly(state->tilemap_edge2[scroll_mode], 0, *state->edge2_pos & 0x7f);
tilemap_draw(bitmap, &clip_edge1, state->tilemap_edge1[scroll_mode], 0, 0);
tilemap_draw(bitmap, &clip_edge2, state->tilemap_edge2[scroll_mode], 0, 0);
}
static void draw_edges(bitmap_t *bitmap, const rectangle *cliprect, int flip, int scroll_mode)
{
rectangle clip_edge1;
rectangle clip_edge2;
clip_edge1 = *cliprect;
clip_edge2 = *cliprect;
if (flip)
{
clip_edge1.min_y = *madalien_edge1_pos | 0x80;
clip_edge2.max_y = (*madalien_edge2_pos & 0x7f) ^ 0x7f;
}
else
{
clip_edge1.max_y = (*madalien_edge1_pos & 0x7f) ^ 0x7f;
clip_edge2.min_y = *madalien_edge2_pos | 0x80;
}
sect_rect(&clip_edge1, cliprect);
sect_rect(&clip_edge2, cliprect);
tilemap_mark_all_tiles_dirty(tilemap_edge1[scroll_mode]);
tilemap_mark_all_tiles_dirty(tilemap_edge2[scroll_mode]);
tilemap_set_flip(tilemap_edge1[scroll_mode], flip ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
tilemap_set_scrollx(tilemap_edge1[scroll_mode], 0, -(*madalien_scroll & 0xfc));
tilemap_set_scrolly(tilemap_edge1[scroll_mode], 0, *madalien_edge1_pos & 0x7f);
tilemap_set_flip(tilemap_edge2[scroll_mode], flip ? TILEMAP_FLIPX : TILEMAP_FLIPY);
tilemap_set_scrollx(tilemap_edge2[scroll_mode], 0, -(*madalien_scroll & 0xfc));
tilemap_set_scrolly(tilemap_edge2[scroll_mode], 0, *madalien_edge2_pos & 0x7f);
tilemap_draw(bitmap, &clip_edge1, tilemap_edge1[scroll_mode], 0, 0);
tilemap_draw(bitmap, &clip_edge2, tilemap_edge2[scroll_mode], 0, 0);
}
static WRITE8_HANDLER( sprcros2_m_port7_w )
{
UINT8 *RAM = memory_region(REGION_CPU1);
//76543210
//x------- unused
//-x------ bankswitch halves of scm-01.10k into c000-dfff
//--xx---- unused
//----x--- irq enable
//-----x-- ?? off with title flash and screen clears, possibly layer/sprite enable
//------x- flip screen
//-------x nmi enable
if((sprcros2_m_port7^data)&0x40)
memory_set_bankptr(1,&RAM[0x10000+((data&0x40)<<7)]);
tilemap_set_flip( ALL_TILEMAPS,data&0x02?(TILEMAP_FLIPX|TILEMAP_FLIPY):0 );
sprcros2_m_port7 = data;
}
static void draw_foreground(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect, int flip)
{
madalien_state *state = machine->driver_data<madalien_state>();
tilemap_set_flip(state->tilemap_fg, flip ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
tilemap_draw(bitmap, cliprect, state->tilemap_fg, 0, 0);
}
static void tx_tilemap_mark_all_dirty(void)
{
tilemap_mark_all_tiles_dirty(tx_tilemap);
tilemap_set_flip(tx_tilemap, flip_x | flip_y);
}
void karnov_flipscreen_w(int data)
{
flipscreen=data;
tilemap_set_flip(ALL_TILEMAPS,flipscreen ? (TILEMAP_FLIPY | TILEMAP_FLIPX) : 0);
}
void renegade_flipscreen_w( int offset, int data ){
flipscreen = !data;
tilemap_set_flip( ALL_TILEMAPS, flipscreen?(TILEMAP_FLIPY|TILEMAP_FLIPX):0);
}
static void draw_foreground(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect, int flip)
{
tilemap_set_flip(tilemap_fg, flip ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
tilemap_draw(bitmap, cliprect, tilemap_fg, 0, 0);
}
