sub.c

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		    while (tmp->next != NULL) tmp = tmp->next;
		    tmp->next = otp->ott;
		    otp->ott->prev = tmp;
		    //attaching new subtitle line at the end
		    otp_sub_tmp->next = otp;
		    otp->prev = otp_sub_tmp;
		    do
			otp_sub_tmp = otp_sub_tmp->next;
		    while (otp_sub_tmp->next != NULL);
		}
	    }//~ if(osl != NULL)
	} // while

	// write lines into utbl
	xtblc = 0;
	utblc = 0;
	obj->y = dys;
	obj->params.subtitle.lines = 0;
	for (tmp_otp = otp_sub; tmp_otp != NULL; tmp_otp = tmp_otp->next) {

	    if ((obj->params.subtitle.lines++) >= MAX_UCSLINES)
		break;

	    if (h > obj->y) {	// out of the screen so end parsing
		obj->y -= lasth - sub_font->height;	// correct the y position
		break;
	    }
	    xsize = tmp_otp->value;
	    obj->params.subtitle.xtbl[xtblc++] = (dxs - xsize) / 2;
	    if (xmin > (dxs - xsize) / 2)
		xmin = (dxs - xsize) / 2;
	    if (xmax < (dxs + xsize) / 2)
		xmax = (dxs + xsize) / 2;

	    tmp = (tmp_otp->next == NULL) ? NULL : tmp_otp->next->ott;
	    for (tmp_ott = tmp_otp->ott; tmp_ott != tmp; tmp_ott = tmp_ott->next) {
		for (counter = 0; counter < tmp_ott->text_length; ++counter) {
		    if (utblc > MAX_UCS) {
			break;
		    }
		    c = tmp_ott->text[counter];
		    render_one_glyph(sub_font, c);
		    obj->params.subtitle.utbl[utblc++] = c;
		    k++;
		}
		obj->params.subtitle.utbl[utblc++] = ' ';
	    }
	    obj->params.subtitle.utbl[utblc - 1] = 0;
	    obj->y -= sub_font->height;
	}
	if(obj->params.subtitle.lines)
	    obj->y = dys - ((obj->params.subtitle.lines - 1) * sub_font->height + sub_font->pic_a[sub_font->font[40]]->h);
	
	// free memory
	if (otp_sub != NULL) {
	    for (tmp = otp_sub->ott; tmp->next != NULL; free(tmp->prev)) {
		free(tmp->text);
		tmp = tmp->next;
	    }
	    free(tmp->text);
	    free(tmp);
	
	    for(pmt = otp_sub; pmt->next != NULL; free(pmt->prev)) {
		pmt = pmt->next;
	    }
	    free(pmt);
	}
	
    }
    /// vertical alignment
    h = dys - obj->y;
    if (sub_alignment == 2)
        obj->y = dys * sub_pos / 100 - h;
    else if (sub_alignment == 1)
        obj->y = dys * sub_pos / 100 - h / 2;
    else
        obj->y = dys * sub_pos / 100;

    if (obj->y < 0)
        obj->y = 0;
    if (obj->y > dys - h)
        obj->y = dys - h;

    obj->bbox.y2 = obj->y + h;

    // calculate bbox:
    if (sub_justify) xmin = 10;
    obj->bbox.x1=xmin;
    obj->bbox.x2=xmax;
    obj->bbox.y1=obj->y;
//    obj->bbox.y2=obj->y+obj->params.subtitle.lines*sub_font->height;
    obj->flags|=OSDFLAG_BBOX;

    alloc_buf(obj);

    y = obj->y;
    
    obj->alignment = 0;
    switch(vo_sub->alignment) {
       case SUB_ALIGNMENT_BOTTOMLEFT:
       case SUB_ALIGNMENT_MIDDLELEFT:
       case SUB_ALIGNMENT_TOPLEFT:
	    obj->alignment |= 0x1;
	    break;
       case SUB_ALIGNMENT_BOTTOMRIGHT:
       case SUB_ALIGNMENT_MIDDLERIGHT:
       case SUB_ALIGNMENT_TOPRIGHT:
	    obj->alignment |= 0x2;
	    break;
       case SUB_ALIGNMENT_BOTTOMCENTER:
       case SUB_ALIGNMENT_MIDDLECENTER:
       case SUB_ALIGNMENT_TOPCENTER:
	default:
	    obj->alignment |= 0x0;
    }

    i=j=0;
    if ((l = obj->params.subtitle.lines)) {
	for(counter = dxs; i < l; ++i)
	    if (obj->params.subtitle.xtbl[i] < counter) counter = obj->params.subtitle.xtbl[i];
	for (i = 0; i < l; ++i) {
	    switch (obj->alignment&0x3) {
		case 1:
		    // left
		    x = counter;
		    break;
		case 2:
		    // right
		    x = 2 * obj->params.subtitle.xtbl[i] - counter - ((obj->params.subtitle.xtbl[i] == counter) ? 0 : 1);
		    break;
		default:
		    //center
		    x = obj->params.subtitle.xtbl[i];
	    }
	 prevc = -1;
	 while ((c=obj->params.subtitle.utbl[j++])){
	       x += kerning(sub_font,prevc,c);
	       if ((font=sub_font->font[c])>=0)
		  draw_alpha_buf(obj,x,y,
			     sub_font->width[c],
			     sub_font->pic_a[font]->h+y<obj->dys ? sub_font->pic_a[font]->h : obj->dys-y,
			     sub_font->pic_b[font]->bmp+sub_font->start[c],
			     sub_font->pic_a[font]->bmp+sub_font->start[c],
			     sub_font->pic_a[font]->w);
	       x+=sub_font->width[c]+sub_font->charspace;
               prevc = c;
	    }
         y+=sub_font->height;
	}
    }
    
}

inline static void vo_update_spudec_sub(mp_osd_obj_t* obj, int dxs, int dys)
{
  unsigned int bbox[4];
  spudec_calc_bbox(vo_spudec, dxs, dys, bbox);
  obj->bbox.x1 = bbox[0];
  obj->bbox.x2 = bbox[1];
  obj->bbox.y1 = bbox[2];
  obj->bbox.y2 = bbox[3];
  obj->flags |= OSDFLAG_BBOX;
}

inline static void vo_draw_spudec_sub(mp_osd_obj_t* obj, void (*draw_alpha)(int x0, int y0, int w, int h, unsigned char* src, unsigned char* srca, int stride))
{
  spudec_draw_scaled(vo_spudec, obj->dxs, obj->dys, draw_alpha);
}

void *vo_spudec=NULL;
void *vo_vobsub=NULL;

static int draw_alpha_init_flag=0;

extern void vo_draw_alpha_init(void);

       mp_osd_obj_t* vo_osd_list=NULL;

static mp_osd_obj_t* new_osd_obj(int type){
    mp_osd_obj_t* osd=malloc(sizeof(mp_osd_obj_t));
    memset(osd,0,sizeof(mp_osd_obj_t));
    osd->next=vo_osd_list;
    vo_osd_list=osd;
    osd->type=type;
    osd->alpha_buffer = NULL;
    osd->bitmap_buffer = NULL;
    osd->allocated = -1;
    return osd;
}

void free_osd_list(void){
    mp_osd_obj_t* obj=vo_osd_list;
    while(obj){
	mp_osd_obj_t* next=obj->next;
	if (obj->alpha_buffer) free(obj->alpha_buffer);
	if (obj->bitmap_buffer) free(obj->bitmap_buffer);
	free(obj);
	obj=next;
    }
    vo_osd_list=NULL;
}

#define FONT_LOAD_DEFER 6

int vo_update_osd(int dxs,int dys){
    mp_osd_obj_t* obj=vo_osd_list;
    int chg=0;
#ifdef HAVE_FREETYPE    
    static int defer_counter = 0, prev_dxs = 0, prev_dys = 0;
#endif

#ifdef HAVE_FREETYPE    
    // here is the right place to get screen dimensions
    if (((dxs != vo_image_width)
	   && (subtitle_autoscale == 2 || subtitle_autoscale == 3))
	|| ((dys != vo_image_height)
	    && (subtitle_autoscale == 1 || subtitle_autoscale == 3)))
    {
	// screen dimensions changed
	// wait a while to avoid useless reloading of the font
	if (dxs == prev_dxs || dys == prev_dys) {
	    defer_counter++;
	} else {
	    prev_dxs = dxs;
	    prev_dys = dys;
	    defer_counter = 0;
	}
	if (defer_counter >= FONT_LOAD_DEFER) force_load_font = 1;
    }

    if (force_load_font) {
	force_load_font = 0;
        load_font_ft(dxs, dys, &vo_font, font_name);
	if (sub_font_name)
	    load_font_ft(dxs, dys, &sub_font, sub_font_name);
	else
	    sub_font = vo_font;
	prev_dxs = dxs;
	prev_dys = dys;
	defer_counter = 0;
    } else {
       if (!vo_font) 
           load_font_ft(dxs, dys, &vo_font, font_name);
       if (!sub_font) {
           if (sub_font_name)
               load_font_ft(dxs, dys, &sub_font, sub_font_name);
           else
               sub_font = vo_font;
       }
    }
#endif

    while(obj){
      if(dxs!=obj->dxs || dys!=obj->dys || obj->flags&OSDFLAG_FORCE_UPDATE){
        int vis=obj->flags&OSDFLAG_VISIBLE;
	obj->flags&=~OSDFLAG_BBOX;
	switch(obj->type){
#ifdef USE_DVDNAV
        case OSDTYPE_DVDNAV:
           vo_update_nav(obj,dxs,dys);
           break;
#endif
	case OSDTYPE_SUBTITLE:
	    vo_update_text_sub(obj,dxs,dys);
	    break;
#ifdef HAVE_TV_TELETEXT
	case OSDTYPE_TELETEXT:
	    vo_update_text_teletext(obj,dxs,dys);
	    break;
#endif
	case OSDTYPE_PROGBAR:
	    vo_update_text_progbar(obj,dxs,dys);
	    break;
	case OSDTYPE_SPU:
	    if(sub_visibility && vo_spudec && spudec_visible(vo_spudec)){
	        vo_update_spudec_sub(obj, dxs, dys);
		obj->flags|=OSDFLAG_VISIBLE|OSDFLAG_CHANGED;
	    }
	    else
		obj->flags&=~OSDFLAG_VISIBLE;
	    break;
	case OSDTYPE_OSD:
	    if(vo_font && vo_osd_text && vo_osd_text[0]){
		vo_update_text_osd(obj,dxs,dys); // update bbox
		obj->flags|=OSDFLAG_VISIBLE|OSDFLAG_CHANGED;
	    } else
		obj->flags&=~OSDFLAG_VISIBLE;
	    break;
	}
	// check bbox:
	if(!(obj->flags&OSDFLAG_BBOX)){
	    // we don't know, so assume the whole screen changed :(
	    obj->bbox.x1=obj->bbox.y1=0;
	    obj->bbox.x2=dxs;
	    obj->bbox.y2=dys;
	    obj->flags|=OSDFLAG_BBOX;
	} else {
	    // check bbox, reduce it if it's out of bounds (corners):
	    if(obj->bbox.x1<0) obj->bbox.x1=0;
	    if(obj->bbox.y1<0) obj->bbox.y1=0;
	    if(obj->bbox.x2>dxs) obj->bbox.x2=dxs;
	    if(obj->bbox.y2>dys) obj->bbox.y2=dys;
	    if(obj->flags&OSDFLAG_VISIBLE)
	    // debug:
	    mp_msg(MSGT_OSD,MSGL_DBG2,"OSD update: %d;%d %dx%d  \n",
		obj->bbox.x1,obj->bbox.y1,obj->bbox.x2-obj->bbox.x1,
		obj->bbox.y2-obj->bbox.y1);
	}
	// check if visibility changed:
	if(vis != (obj->flags&OSDFLAG_VISIBLE) ) obj->flags|=OSDFLAG_CHANGED;
	// remove the cause of automatic update:
	obj->dxs=dxs; obj->dys=dys;
	obj->flags&=~OSDFLAG_FORCE_UPDATE;
      }
      if(obj->flags&OSDFLAG_CHANGED){
        chg|=1<<obj->type;
	mp_msg(MSGT_OSD,MSGL_DBG2,"OSD chg: %d  V: %s  pb:%d  \n",obj->type,(obj->flags&OSDFLAG_VISIBLE)?"yes":"no",vo_osd_progbar_type);
      }
      obj=obj->next;
    }
    return chg;
}

void vo_init_osd(void){
    if(!draw_alpha_init_flag){
	draw_alpha_init_flag=1;
	vo_draw_alpha_init();
    }
    if(vo_osd_list) free_osd_list();
    // temp hack, should be moved to mplayer/mencoder later
    new_osd_obj(OSDTYPE_OSD);
    new_osd_obj(OSDTYPE_SUBTITLE);
    new_osd_obj(OSDTYPE_PROGBAR);
    new_osd_obj(OSDTYPE_SPU);
#ifdef USE_DVDNAV
    new_osd_obj(OSDTYPE_DVDNAV);
#endif
#if HAVE_TV_TELETEXT
    new_osd_obj(OSDTYPE_TELETEXT);
#endif
#ifdef HAVE_FREETYPE
    force_load_font = 1;
#endif
}

int vo_osd_changed_flag=0;

void vo_remove_text(int dxs,int dys,void (*remove)(int x0,int y0, int w,int h)){
    mp_osd_obj_t* obj=vo_osd_list;
    vo_update_osd(dxs,dys);
    while(obj){
      if(((obj->flags&OSDFLAG_CHANGED) || (obj->flags&OSDFLAG_VISIBLE)) && 
         (obj->flags&OSDFLAG_OLD_BBOX)){
          int w=obj->old_bbox.x2-obj->old_bbox.x1;
	  int h=obj->old_bbox.y2-obj->old_bbox.y1;
	  if(w>0 && h>0){
	      vo_osd_changed_flag=obj->flags&OSDFLAG_CHANGED;	// temp hack
              remove(obj->old_bbox.x1,obj->old_bbox.y1,w,h);
	  }
//	  obj->flags&=~OSDFLAG_OLD_BBOX;
      }
      obj=obj->next;
    }
}

void vo_draw_text(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
    mp_osd_obj_t* obj=vo_osd_list;
    vo_update_osd(dxs,dys);
    while(obj){
      if(obj->flags&OSDFLAG_VISIBLE){
	vo_osd_changed_flag=obj->flags&OSDFLAG_CHANGED;	// temp hack
	switch(obj->type){
	case OSDTYPE_SPU:
	    vo_draw_spudec_sub(obj, draw_alpha); // FIXME
	    break;
#ifdef USE_DVDNAV
        case OSDTYPE_DVDNAV:
#endif
#ifdef HAVE_TV_TELETEXT
	case OSDTYPE_TELETEXT:
#endif
	case OSDTYPE_OSD:
	case OSDTYPE_SUBTITLE:
	case OSDTYPE_PROGBAR:
	    vo_draw_text_from_buffer(obj,draw_alpha);
	    break;
	}
	obj->old_bbox=obj->bbox;
	obj->flags|=OSDFLAG_OLD_BBOX;
      }
      obj->flags&=~OSDFLAG_CHANGED;
      obj=obj->next;
    }
}

static int vo_osd_changed_status = 0;

int vo_osd_changed(int new_value)
{
    mp_osd_obj_t* obj=vo_osd_list;
    int ret = vo_osd_changed_status;
    vo_osd_changed_status = new_value;

    while(obj){
	if(obj->type==new_value) obj->flags|=OSDFLAG_FORCE_UPDATE;
	obj=obj->next;
    }

    return ret;
}

//      BBBBBBBBBBBB   AAAAAAAAAAAAA  BBBBBBBBBBB
//              BBBBBBBBBBBB  BBBBBBBBBBBBB
//                        BBBBBBB

// return TRUE if we have osd in the specified rectangular area:
int vo_osd_check_range_update(int x1,int y1,int x2,int y2){
    mp_osd_obj_t* obj=vo_osd_list;
    while(obj){
	if(obj->flags&OSDFLAG_VISIBLE){
	    if(	(obj->bbox.x1<=x2 && obj->bbox.x2>=x1) &&
		(obj->bbox.y1<=y2 && obj->bbox.y2>=y1) &&
		obj->bbox.y2 > obj->bbox.y1 && obj->bbox.x2 > obj->bbox.x1
		) return 1;
	}
	obj=obj->next;
    }
    return 0;
}