static void parentj_draw_sprites( running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect, int priority )
{
/* Y chain size is 16/32?/64/64? pixels. X chain size
is always 64 pixels. */
taitoo_state *state = machine->driver_data<taitoo_state>();
static const int size[] = { 1, 2, 4, 4 };
int x0, y0, x, y, dx, dy, ex, ey, zx, zy;
int ysize;
int j, k;
int offs; /* sprite RAM offset */
int tile_offs; /* sprite chain offset */
int zoomx, zoomy; /* zoom value */
for (offs = 0x03f8 / 2; offs >= 0; offs -= 0x008 / 2)
{
if (offs < 0x01b0 && priority == 0) continue;
if (offs >= 0x01b0 && priority == 1) continue;
x0 = tc0080vco_sprram_r(state->tc0080vco, offs + 1, 0xffff) & 0x3ff;
y0 = tc0080vco_sprram_r(state->tc0080vco, offs + 0, 0xffff) & 0x3ff;
zoomx = (tc0080vco_sprram_r(state->tc0080vco, offs + 2, 0xffff) & 0x7f00) >> 8;
zoomy = (tc0080vco_sprram_r(state->tc0080vco, offs + 2, 0xffff) & 0x007f);
tile_offs = (tc0080vco_sprram_r(state->tc0080vco, offs + 3, 0xffff) & 0x1fff) << 2;
ysize = size[(tc0080vco_sprram_r(state->tc0080vco, offs, 0xffff) & 0x0c00) >> 10];
if (tile_offs)
{
/* Convert zoomy value to real value as zoomx */
zoomy = zoomy_conv_table[zoomy];
if (zoomx < 63)
{
dx = 8 + (zoomx + 2) / 8;
ex = (zoomx + 2) % 8;
zx = ((dx << 1) + ex) << 11;
}
else
{
dx = 16 + (zoomx - 63) / 4;
ex = (zoomx - 63) % 4;
zx = (dx + ex) << 12;
}
if (zoomy < 63)
{
dy = 8 + (zoomy + 2) / 8;
ey = (zoomy + 2) % 8;
zy = ((dy << 1) + ey) << 11;
}
else
{
dy = 16 + (zoomy - 63) / 4;
ey = (zoomy - 63) % 4;
zy = (dy + ey) << 12;
}
if (x0 >= 0x200) x0 -= 0x400;
if (y0 >= 0x200) y0 -= 0x400;
if (tc0080vco_flipscreen_r(state->tc0080vco))
{
x0 = 497 - x0;
y0 = 498 - y0;
dx = -dx;
dy = -dy;
}
else
{
x0 += 1;
y0 += 2;
}
y = y0;
for (j = 0; j < ysize; j ++)
{
x = x0;
for (k = 0; k < 4; k ++)
{
if (tile_offs >= 0x1000)
{
int tile, color, flipx, flipy;
tile = tc0080vco_cram_0_r(state->tc0080vco, tile_offs, 0xffff) & 0x7fff;
color = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x001f;
flipx = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x0040;
flipy = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x0080;
if (tc0080vco_flipscreen_r(state->tc0080vco))
{
flipx ^= 0x0040;
flipy ^= 0x0080;
}
drawgfxzoom_transpen( bitmap, cliprect,
machine -> gfx[0],
tile,
color,
flipx, flipy,
x, y,
zx, zy, 0
);
}
tile_offs ++;
x += dx;
}
y += dy;
}
}
}
}
static void syvalion_draw_sprites( running_machine *machine,bitmap_t *bitmap, const rectangle *cliprect )
{
/* Y chain size is 16/32?/64/64? pixels. X chain size
is always 64 pixels. */
taitoh_state *state = (taitoh_state *)machine->driver_data;
static const int size[] = { 1, 2, 4, 4 };
int x0, y0, x, y, dx, ex, zx;
int ysize;
int j, k;
int offs; /* sprite RAM offset */
int tile_offs; /* sprite chain offset */
int zoomx; /* zoomx value */
for (offs = 0x03f8 / 2; offs >= 0; offs -= 0x008 / 2)
{
x0 = tc0080vco_sprram_r(state->tc0080vco, offs + 1, 0xffff) & 0x3ff;
y0 = tc0080vco_sprram_r(state->tc0080vco, offs + 0, 0xffff) & 0x3ff;
zoomx = (tc0080vco_sprram_r(state->tc0080vco, offs + 2, 0xffff) & 0x7f00) >> 8;
tile_offs = (tc0080vco_sprram_r(state->tc0080vco, offs + 3, 0xffff) & 0x1fff) << 2;
ysize = size[(tc0080vco_sprram_r(state->tc0080vco, offs, 0xffff) & 0x0c00) >> 10];
if (tile_offs)
{
/* The increasing ratio of expansion is different whether zoom value */
/* is less or more than 63. */
if (zoomx < 63)
{
dx = 8 + (zoomx + 2) / 8;
ex = (zoomx + 2) % 8;
zx = ((dx << 1) + ex) << 11;
}
else
{
dx = 16 + (zoomx - 63) / 4;
ex = (zoomx - 63) % 4;
zx = (dx + ex) << 12;
}
if (x0 >= 0x200) x0 -= 0x400;
if (y0 >= 0x200) y0 -= 0x400;
if (tc0080vco_flipscreen_r(state->tc0080vco))
{
x0 = 497 - x0;
y0 = 498 - y0;
dx = -dx;
}
else
{
x0 += 1;
y0 += 2;
}
y = y0;
for (j = 0; j < ysize; j++)
{
x = x0;
for (k = 0; k < 4; k++)
{
if (tile_offs >= 0x1000)
{
int tile, color, flipx, flipy;
tile = tc0080vco_cram_0_r(state->tc0080vco, tile_offs, 0xffff) & 0x7fff;
color = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x001f;
flipx = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x0040;
flipy = tc0080vco_cram_1_r(state->tc0080vco, tile_offs, 0xffff) & 0x0080;
if (tc0080vco_flipscreen_r(state->tc0080vco))
{
flipx ^= 0x0040;
flipy ^= 0x0080;
}
drawgfxzoom_transpen( bitmap, cliprect,
machine -> gfx[0],
tile,
color,
flipx, flipy,
x, y,
zx, zx, 0
);
}
tile_offs ++;
x += dx;
}
y += dx;
}
}
}
}
