public static gfx_object_list gfxobj_create(int nums, int max_priority, gfx_object def_object)
{
gfx_object_list object_list;
/* priority limit check */
if (max_priority >= MAX_PRIORITY)
return null;
/* allocate object liset */
object_list = new gfx_object_list();
//memset(object_list,0,sizeof(struct gfx_object_list));
/* allocate objects */
object_list.objects = new gfx_object[nums];
if (def_object == null)
{ /* clear all objects */
for (int i = 0; i < nums; i++)
object_list.objects[i] = new gfx_object();//memset(object_list.objects,0,nums*sizeof(struct gfx_object));
}
else
{ /* preset with default objects */
for (int i = 0; i < nums; i++)
object_list.objects[i] = def_object;
}
/* setup objects */
for (int i = 0; i < nums; i++)
{
/* dirty flag */
object_list.objects[i].dirty_flag = GFXOBJ_DIRTY_ALL;
/* link map */
object_list.objects[i].next = i < nums - 1 ? object_list.objects[i + 1] : null;
object_list.objects[i].prev = i > 0 ? object_list.objects[i - 1] : null;
}
/* setup object_list */
object_list.max_priority = max_priority;
object_list.nums = nums;
object_list.first_object = object_list.objects[0]; /* top of link */
object_list.objects[nums - 1].next = null; /* bottom of link */
object_list.sort_type = GFXOBJ_SORT_DEFAULT;
/* resource tracking */
object_list.next = first_object_list;
first_object_list = object_list;
return object_list;
}
static void gfxobj_update_one(gfx_object_list object_list)
{
throw new Exception();
#if false
gfx_object _object;
gfx_object start_object, last_object;
int dx, start_priority, end_priority;
int priorities = object_list.max_priority;
int priority;
if ((object_list.sort_type & GFXOBJ_DO_SORT) != 0)
{
gfx_object[] top_object = new gfx_object[MAX_PRIORITY], end_object = new gfx_object[MAX_PRIORITY];
/* object sort direction */
if ((object_list.sort_type & GFXOBJ_SORT_OBJECT_BACK) != 0)
{
start_object = object_list.objects[object_list.nums - 1];
last_object = object_list.objects[0].prev;
dx = -1;
}
else
{
start_object = object_list.objects[0];
last_object = object_list.objects[object_list.nums];
dx = 1;
}
/* reset each priority point */
for (priority = 0; priority < priorities; priority++)
end_object[priority] = null;
/* update and sort */
for (_object = start_object; _object != last_object; )
{
/* update all objects */
if (_object.dirty_flag != 0)
object_update(_object);
/* store link */
if (_object.visible)
{
priority = _object.priority;
if (end_object[priority] != null)
end_object[priority].next = _object;
else
top_object[priority] = _object;
end_object[priority] = _object;
}
for (int i = 0; i < dx; i++) _object = _object.next;
}
/* priority sort direction */
if ((object_list.sort_type & GFXOBJ_SORT_PRIORITY_BACK) != 0)
{
start_priority = priorities - 1;
end_priority = -1;
dx = -1;
}
else
{
start_priority = 0;
end_priority = priorities;
dx = 1;
}
/* link between priority */
last_object = null;
for (priority = start_priority; priority != end_priority; priority += dx)
{
if (end_object[priority] != null)
{
if (last_object != null)
last_object.next = top_object[priority];
else
object_list.first_object = top_object[priority];
last_object = end_object[priority];
}
}
if (last_object == null)
object_list.first_object = null;
else
last_object.next = null;
}
else
{ /* non sort , update only linked object */
for (_object = object_list.first_object; _object != null; _object = _object.next)
{
/* update all objects */
if (_object.dirty_flag != 0)
object_update(_object);
}
}
/* palette resource */
if (_object.palette_flag != 0)
{
/* !!!!! do not supported yet !!!!! */
}
#endif
}
static void draw_object_one(osd_bitmap bitmap, gfx_object _object)
{
throw new Exception();
}
static void object_update(gfx_object _object)
{
int min_x, min_y, max_x, max_y;
/* clear dirty flag */
_object.dirty_flag = 0;
/* if gfx == 0 ,then bypass (for special_handler ) */
if (_object.gfx == null)
return;
/* check visible area */
min_x = Machine.drv.visible_area.min_x;
max_x = Machine.drv.visible_area.max_x;
min_y = Machine.drv.visible_area.min_y;
max_y = Machine.drv.visible_area.max_y;
if (
(_object.width == 0) ||
(_object.height == 0) ||
(_object.sx > max_x) ||
(_object.sy > max_y) ||
(_object.sx + _object.width <= min_x) ||
(_object.sy + _object.height <= min_y))
{ /* outside of visible area */
_object.visible = false;
return;
}
_object.visible = true;
/* set draw position with adjust source offset */
_object.draw_x = _object.sx -
(_object.flipx != 0 ?
(_object.gfx.width - (_object.left + _object.width)) : /* flip */
(_object.left) /* non flip */
);
_object.draw_y = _object.sy -
(_object.flipy != 0 ?
(_object.gfx.height - (_object.top + _object.height)) : /* flip */
(_object.top) /* non flip */
);
/* set clipping point to object draw area */
_object.clip.min_x = _object.sx;
_object.clip.max_x = _object.sx + _object.width - 1;
_object.clip.min_y = _object.sy;
_object.clip.max_y = _object.sy + _object.height - 1;
/* adjust clipping point with visible area */
if (_object.clip.min_x < min_x) _object.clip.min_x = min_x;
if (_object.clip.max_x > max_x) _object.clip.max_x = max_x;
if (_object.clip.min_y < min_y) _object.clip.min_y = min_y;
if (_object.clip.max_y > max_y) _object.clip.max_y = max_y;
}
