static void mo_render_callback(const UINT16 *data, const struct rectangle *clip, void *param)
{
const struct GfxElement *gfx = Machine->gfx[1];
struct osd_bitmap *bitmap = (struct osd_bitmap *)param;
struct rectangle pf_clip;
/* extract data from the various words */
int code = data[1] & 0x0fff;
int xpos = data[2] >> 7;
int ypos = 512 - (data[3] >> 7);
int color = data[2] & 0x000f;
int hsize = ((data[3] >> 4) & 7) + 1;
int hflip = data[3] & 0x0008;
int vsize = (data[3] & 7) + 1;
/* adjust for height */
ypos -= vsize * 8;
/* adjust the final coordinates */
xpos &= 0x1ff;
ypos &= 0x1ff;
if (xpos >= XDIM) xpos -= 0x200;
if (ypos >= YDIM) ypos -= 0x200;
/* determine the bounding box */
atarigen_mo_compute_clip_8x8(pf_clip, xpos, ypos, hsize, vsize, clip);
/* draw the motion object */
atarigen_mo_draw_8x8(bitmap, gfx, code, color, hflip, 0, xpos, ypos, hsize, vsize, clip, TRANSPARENCY_PEN, 0);
/* overrender the playfield */
atarigen_pf_process(pf_overrender_callback, bitmap, &pf_clip);
}
void offtwall_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
{
/* remap if necessary */
if (update_palette())
memset(atarigen_pf_dirty, 0xff, atarigen_playfieldram_size / 4);
/* update playfield */
atarigen_pf_process(pf_render_callback, bitmap, &Machine->visible_area);
/* render the motion objects */
atarigen_mo_process(mo_render_callback, bitmap);
/* update onscreen messages */
atarigen_update_messages();
}
static const UINT8 *update_palette(void)
{
UINT16 mo_map[16], pf_map[48];
int i, j;
/* reset color tracking */
memset(mo_map, 0, sizeof(mo_map));
memset(pf_map, 0, sizeof(pf_map));
palette_init_used_colors();
/* update color usage for the playfields */
atarigen_pf_process(pf_color_callback, pf_map, &Machine->drv->visible_area);
atarigen_pf2_process(pf2_color_callback, pf_map, &Machine->drv->visible_area);
/* update color usage for the mo's */
atarigen_mo_process(mo_color_callback, mo_map);
/* rebuild the playfield palettes */
for (i = 0; i < 48; i++)
{
UINT16 used = pf_map[i];
if (used)
{
if (i < 16)
palette_used_colors[0x000 + i * 16 + 0] = PALETTE_COLOR_TRANSPARENT;
else if (used & 0x0001)
palette_used_colors[0x000 + i * 16 + 0] = PALETTE_COLOR_USED;
for (j = 1; j < 16; j++)
if (used & (1 << j))
palette_used_colors[0x000 + i * 16 + j] = PALETTE_COLOR_USED;
}
}
/* rebuild the motion object palette */
for (i = 0; i < 16; i++)
{
UINT16 used = mo_map[i];
if (used)
{
palette_used_colors[0x100 + i * 16 + 0] = PALETTE_COLOR_TRANSPARENT;
for (j = 1; j < 16; j++)
if (used & (1 << j))
palette_used_colors[0x100 + i * 16 + j] = PALETTE_COLOR_USED;
}
}
return palette_recalc();
}
void relief_vh_screenrefresh(struct osd_bitmap *bitmap,int full_refresh)
{
int i;
#if DEBUG_VIDEO
debug();
#endif
/* update the palette */
if (update_palette())
{
memset(atarigen_pf_dirty, 1, atarigen_playfieldram_size / 2);
memset(atarigen_pf2_dirty, 1, atarigen_playfield2ram_size / 2);
}
/* set up the all-transparent overrender palette */
for (i = 0; i < 16; i++)
atarigen_overrender_colortable[i] = palette_transparent_pen;
/* render the playfield */
memset(atarigen_pf_visit, 0, 64*64);
#if DEBUG_VIDEO
if (show_colors == 2)
osd_clearbitmap(bitmap);
else
#endif
atarigen_pf_process(pf_render_callback, bitmap, &Machine->drv->visible_area);
/* render the playfield */
memset(atarigen_pf2_visit, 0, 64*64);
#if DEBUG_VIDEO
if (show_colors != 1)
#endif
atarigen_pf2_process(pf2_render_callback, bitmap, &Machine->drv->visible_area);
/* render the motion objects */
atarigen_mo_process(mo_render_callback, bitmap);
/* update onscreen messages */
atarigen_update_messages();
}
void badlands_vh_screenrefresh(struct osd_bitmap *bitmap, int full_refresh)
{
int i;
/* remap if necessary */
if (palette_recalc())
memset(atarigen_pf_dirty, 0xff, atarigen_playfieldram_size / 2);
/* set up the all-transparent overrender palette */
for (i = 0; i < 16; i++)
atarigen_overrender_colortable[i] = palette_transparent_pen;
/* draw the playfield */
atarigen_pf_process(pf_render_callback, bitmap, &Machine->drv->visible_area);
/* render the motion objects */
atarigen_mo_process(mo_render_callback, bitmap);
/* update onscreen messages */
atarigen_update_messages();
}
void xybots_vh_screenrefresh(struct osd_bitmap *bitmap, int full_refresh)
{
int i;
/* update the palette */
if (update_palette())
memset(atarigen_pf_dirty, 1, atarigen_playfieldram_size / 2);
/* set up the all-transparent overrender palette */
for (i = 0; i < 16; i++)
atarigen_overrender_colortable[i] = palette_transparent_pen;
/* render the playfield */
atarigen_pf_process(pf_render_callback, bitmap, &Machine->visible_area);
/* render the motion objects */
atarigen_mo_process(mo_render_callback, bitmap);
/* redraw the alpha layer completely */
{
const struct GfxElement *gfx = Machine->gfx[2];
int sx, sy, offs;
for (sy = 0; sy < YCHARS; sy++)
for (sx = 0, offs = sy * 64; sx < XCHARS; sx++, offs++)
{
int data = READ_WORD(&atarigen_alpharam[offs * 2]);
int code = data & 0x3ff;
int opaque = data & 0x8000;
if (code || opaque)
{
int color = (data >> 12) & 7;
drawgfx(bitmap, gfx, code, color, 0, 0, 8 * sx, 8 * sy, 0,
opaque ? TRANSPARENCY_NONE : TRANSPARENCY_PEN, 0);
}
}
}