UINT32 palette_device::transpen_mask(gfx_element &gfx, int color, int transcolor)
{
UINT32 entry = gfx.colorbase() + (color % gfx.colors()) * gfx.granularity();
// make sure we are in range
assert(entry < m_indirect_pens.size());
assert(gfx.depth() <= 32);
// either gfx->color_depth entries or as many as we can get up until the end
int count = MIN(gfx.depth(), m_indirect_pens.size() - entry);
// set a bit anywhere the transcolor matches
UINT32 mask = 0;
for (int bit = 0; bit < count; bit++)
if (m_indirect_pens[entry++] == transcolor)
mask |= 1 << bit;
// return the final mask
return mask;
}
static void gfxset_draw_item(running_machine &machine, gfx_element &gfx, int index, bitmap_rgb32 &bitmap, int dstx, int dsty, int color, int rotate, device_palette_interface *dpalette)
{
int width = (rotate & ORIENTATION_SWAP_XY) ? gfx.height() : gfx.width();
int height = (rotate & ORIENTATION_SWAP_XY) ? gfx.width() : gfx.height();
const rgb_t *palette = dpalette->palette()->entry_list_raw() + gfx.colorbase() + color * gfx.granularity();
int x, y;
// loop over rows in the cell
for (y = 0; y < height; y++)
{
uint32_t *dest = &bitmap.pix32(dsty + y, dstx);
const uint8_t *src = gfx.get_data(index);
// loop over columns in the cell
for (x = 0; x < width; x++)
{
int effx = x, effy = y;
const uint8_t *s;
// compute effective x,y values after rotation
if (!(rotate & ORIENTATION_SWAP_XY))
{
if (rotate & ORIENTATION_FLIP_X)
effx = gfx.width() - 1 - effx;
if (rotate & ORIENTATION_FLIP_Y)
effy = gfx.height() - 1 - effy;
}
else
{
if (rotate & ORIENTATION_FLIP_X)
effx = gfx.height() - 1 - effx;
if (rotate & ORIENTATION_FLIP_Y)
effy = gfx.width() - 1 - effy;
std::swap(effx, effy);
}
// get a pointer to the start of this source row
s = src + effy * gfx.rowbytes();
// extract the pixel
*dest++ = 0xff000000 | palette[s[effx]];
}
}
}