UINT32 warriorb_state::update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int xoffs, device_t *tc0100scn)
{
UINT8 layer[3], nodraw;
tc0100scn_tilemap_update(tc0100scn);
layer[0] = tc0100scn_bottomlayer(tc0100scn);
layer[1] = layer[0] ^ 1;
layer[2] = 2;
/* Clear priority bitmap */
screen.machine().priority_bitmap.fill(0, cliprect);
/* chip 0 does tilemaps on the left, chip 1 does the ones on the right */
// draw bottom layer
nodraw = tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[0], TILEMAP_DRAW_OPAQUE, 0); /* left */
/* Ensure screen blanked even when bottom layers not drawn due to disable bit */
if (nodraw)
bitmap.fill(get_black_pen(machine()), cliprect);
// draw middle layer
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[1], 0, 1);
/* Sprites can be under/over the layer below text layer */
draw_sprites(bitmap, cliprect, xoffs, 8); // draw sprites
// draw top(text) layer
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[2], 0, 0);
return 0;
}
static UINT32 update_screen(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int xoffs, device_t *tc0100scn)
{
UINT8 layer[3], nodraw;
tc0100scn_tilemap_update(tc0100scn);
layer[0] = tc0100scn_bottomlayer(tc0100scn);
layer[1] = layer[0] ^ 1;
layer[2] = 2;
/* chip 0 does tilemaps on the left, chip 1 center, chip 2 the right */
// draw bottom layer
nodraw = tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[0], TILEMAP_DRAW_OPAQUE, 0); /* left */
/* Ensure screen blanked even when bottom layers not drawn due to disable bit */
if (nodraw)
bitmap.fill(get_black_pen(screen.machine()), cliprect);
/* Sprites can be under/over the layer below text layer */
draw_sprites(screen.machine(), bitmap, cliprect, 1, xoffs, 8); // draw sprites with priority 1 which are under the mid layer
// draw middle layer
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[1], 0, 0);
draw_sprites(screen.machine(),bitmap,cliprect,0,xoffs,8); // draw sprites with priority 0 which are over the mid layer
// draw top(text) layer
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, layer[2], 0, 0);
return 0;
}
UINT32 undrfire_state::screen_update_cbombers(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
device_t *tc0100scn = machine().device("tc0100scn");
device_t *tc0480scp = machine().device("tc0480scp");
address_space &space = machine().driver_data()->generic_space();
UINT8 layer[5];
UINT8 pivlayer[3];
UINT16 priority;
#ifdef MAME_DEBUG
if (machine().input().code_pressed_once (KEYCODE_X))
{
m_dislayer[5] ^= 1;
popmessage("piv text: %01x",m_dislayer[5]);
}
if (machine().input().code_pressed_once (KEYCODE_C))
{
m_dislayer[0] ^= 1;
popmessage("bg0: %01x",m_dislayer[0]);
}
if (machine().input().code_pressed_once (KEYCODE_V))
{
m_dislayer[1] ^= 1;
popmessage("bg1: %01x",m_dislayer[1]);
}
if (machine().input().code_pressed_once (KEYCODE_B))
{
m_dislayer[2] ^= 1;
popmessage("bg2: %01x",m_dislayer[2]);
}
if (machine().input().code_pressed_once (KEYCODE_N))
{
m_dislayer[3] ^= 1;
popmessage("bg3: %01x",m_dislayer[3]);
}
if (machine().input().code_pressed_once (KEYCODE_M))
{
m_dislayer[4] ^= 1;
popmessage("sprites: %01x",m_dislayer[4]);
}
#endif
tc0100scn_tilemap_update(tc0100scn);
tc0480scp_tilemap_update(tc0480scp);
priority = tc0480scp_get_bg_priority(tc0480scp);
layer[0] = (priority & 0xf000) >> 12; /* tells us which bg layer is bottom */
layer[1] = (priority & 0x0f00) >> 8;
layer[2] = (priority & 0x00f0) >> 4;
layer[3] = (priority & 0x000f) >> 0; /* tells us which is top */
layer[4] = 4; /* text layer always over bg layers */
pivlayer[0] = tc0100scn_bottomlayer(tc0100scn);
pivlayer[1] = pivlayer[0] ^ 1;
pivlayer[2] = 2;
machine().priority_bitmap.fill(0, cliprect);
bitmap.fill(0, cliprect); /* wrong color? */
/* The "PIV" chip seems to be a renamed TC0100SCN. It has a
bottom layer usually full of bright garish colors that
vaguely mimic the structure of the layers on top. Seems
pointless - it's always hidden by other layers. Does it
serve some blending pupose ? */
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, pivlayer[0], TILEMAP_DRAW_OPAQUE, 0);
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, pivlayer[1], 0, 0);
#ifdef MAME_DEBUG
if (m_dislayer[layer[0]]==0)
#endif
tc0480scp_tilemap_draw(tc0480scp, bitmap, cliprect, layer[0], 0, 1);
#ifdef MAME_DEBUG
if (m_dislayer[layer[1]]==0)
#endif
tc0480scp_tilemap_draw(tc0480scp, bitmap, cliprect, layer[1], 0, 2);
#ifdef MAME_DEBUG
if (m_dislayer[layer[2]]==0)
#endif
tc0480scp_tilemap_draw(tc0480scp, bitmap, cliprect, layer[2], 0, 4);
#ifdef MAME_DEBUG
if (m_dislayer[layer[3]]==0)
#endif
tc0480scp_tilemap_draw(tc0480scp, bitmap, cliprect, layer[3], 0, 8);
#ifdef MAME_DEBUG
if (m_dislayer[4]==0)
#endif
/* Sprites have variable priority (we kludge this on road levels) */
{
if ((tc0480scp_pri_reg_r(tc0480scp, space, 0) & 0x3) == 3) /* on road levels kludge sprites up 1 priority */
{
static const int primasks[4] = {0xfff0, 0xff00, 0x0, 0x0};
draw_sprites_cbombers(machine(), bitmap, cliprect, primasks, 80, -208);
}
else
{
static const int primasks[4] = {0xfffc, 0xfff0, 0xff00, 0x0};
draw_sprites_cbombers(machine(), bitmap, cliprect, primasks, 80, -208);
}
}
#ifdef MAME_DEBUG
if (m_dislayer[5]==0)
#endif
tc0100scn_tilemap_draw(tc0100scn, bitmap, cliprect, pivlayer[2], 0, 0); /* piv text layer */
tc0480scp_tilemap_draw(tc0480scp, bitmap, cliprect, layer[4], 0, 0); /* TC0480SCP text layer */
/* Enable this to see rotation (?) control words */
#if 0
{
char buf[80];
int i;
for (i = 0; i < 8; i += 1)
{
sprintf (buf, "%02x: %04x", i, m_rotate_ctrl[i]);
ui_draw_text (buf, 0, i*8);
}
}
#endif
return 0;
}