static void mo_render_callback(const UINT16 *data, const struct rectangle *clip, void *param)
{
const struct GfxElement *gfx = Machine->gfx[0];
struct osd_bitmap *bitmap = (struct osd_bitmap *)param;
struct rectangle pf_clip;
/* extract data from the various words */
int hflip = data[1] & 0x8000;
int code = data[1] & 0x7fff;
int xpos = (data[2] >> 7) - atarigen_video_control_state.sprite_xscroll;
int color = data[2] & 0x000f;
int ypos = -(data[3] >> 7) - atarigen_video_control_state.sprite_yscroll;
int hsize = ((data[3] >> 4) & 7) + 1;
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);
}
static void mo_render_callback(const UINT16 *data, const struct rectangle *clip, void *param)
{
struct GfxElement *gfx = Machine->gfx[1];
struct pf_overrender_data overrender_data;
struct osd_bitmap *bitmap = param;
struct rectangle pf_clip;
/* extract data from the various words */
int hflip = data[1] & 0x8000;
int code = data[1] & 0x7fff;
int xpos = (data[2] >> 7) - atarigen_video_control_state.sprite_xscroll;
int priority = (data[2] >> 3) & 1;
int color = data[2] & 0x000f;
int ypos = -(data[3] >> 7) - atarigen_video_control_state.sprite_yscroll;
int hsize = ((data[3] >> 4) & 7) + 1;
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 an instance of the object in all transparent pens */
atarigen_mo_draw_transparent_8x8(bitmap, gfx, code, hflip, 0, xpos, ypos, hsize, vsize, clip, TRANSPARENCY_PEN, 0);
/* and then draw it normally on the temp bitmap */
atarigen_mo_draw_8x8(atarigen_pf_overrender_bitmap, gfx, code, color, hflip, 0, xpos, ypos, hsize, vsize, clip, TRANSPARENCY_NONE, 0);
/* overrender the playfield on top of that that */
overrender_data.mo_priority = priority;
overrender_data.bitmap = atarigen_pf_overrender_bitmap;
atarigen_pf2_process(pf2_overrender_callback, &overrender_data, &pf_clip);
/* finally, copy this chunk to the real bitmap */
copybitmap(bitmap, atarigen_pf_overrender_bitmap, 0, 0, 0, 0, &pf_clip, TRANSPARENCY_THROUGH, palette_transparent_pen);
#if DEBUG_VIDEO
if (show_colors)
{
int tx = (pf_clip.min_x + pf_clip.max_x) / 2 - 3;
int ty = (pf_clip.min_y + pf_clip.max_y) / 2 - 4;
drawgfx(bitmap, Machine->uifont, ' ', 0, 0, 0, tx - 2, ty - 2, 0, TRANSPARENCY_NONE, 0);
drawgfx(bitmap, Machine->uifont, ' ', 0, 0, 0, tx + 2, ty - 2, 0, TRANSPARENCY_NONE, 0);
drawgfx(bitmap, Machine->uifont, ' ', 0, 0, 0, tx - 2, ty + 2, 0, TRANSPARENCY_NONE, 0);
drawgfx(bitmap, Machine->uifont, ' ', 0, 0, 0, tx + 2, ty + 2, 0, TRANSPARENCY_NONE, 0);
drawgfx(bitmap, Machine->uifont, "0123456789ABCDEF"[priority], 0, 0, 0, tx, ty, 0, TRANSPARENCY_NONE, 0);
}
#endif
}
