Index: obj_padstack_inlines.h
===================================================================
--- obj_padstack_inlines.h	(nonexistent)
+++ obj_padstack_inlines.h	(revision 12237)
@@ -0,0 +1,107 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *  Copyright (C) 2017 Tibor 'Igor2' Palinkas
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "obj_padstack.h"
+#include "vtpadstack.h"
+
+typedef enum {
+	PCB_BB_NONE, /* no drill */
+	PCB_BB_THRU, /* all way thru */
+	PCB_BB_BB,
+	PCB_BB_INVALID
+} pcb_bb_type_t;
+
+static inline PCB_FUNC_UNUSED pcb_bb_type_t pcb_padstack_bbspan(pcb_board_t *pcb, pcb_padstack_t *ps, pcb_layergrp_id_t *top, pcb_layergrp_id_t *bottom)
+{
+	pcb_bb_type_t res;
+	int topi, boti;
+	pcb_padstack_proto_t *proto = pcb_vtpadstack_proto_get(&ps->parent.data->ps_protos, ps->proto, 0);
+	if (proto == NULL)
+		return PCB_BB_INVALID;
+
+	/* most common case should be quick */
+	if (proto->hdia == 0) {
+		if (top != NULL) *top = -1;
+		if (bottom != NULL) *bottom = -1;
+		return PCB_BB_NONE;
+	}
+
+	if ((proto->htop == 0) && (proto->hbottom == 0)) {
+		if ((top == NULL) && (bottom == NULL))
+			return PCB_BB_THRU;
+		res = PCB_BB_THRU;
+	}
+	else
+		res = PCB_BB_BB;
+
+	/* slower case: need to look up start and end */
+	if (!pcb->LayerGroups.cache.copper_valid)
+		pcb_layergrp_copper_cache_update(&pcb->LayerGroups);
+
+	if (proto->htop < pcb->LayerGroups.cache.copper_len)
+		topi = proto->htop;
+	else
+		topi = pcb->LayerGroups.cache.copper_len - 1;
+
+	if (proto->hbottom < pcb->LayerGroups.cache.copper_len-1)
+		boti = pcb->LayerGroups.cache.copper_len-1-proto->hbottom;
+	else
+		boti = 0;
+
+	if (boti <= topi) {
+		if (top != NULL) *top = -1;
+		if (bottom != NULL) *bottom = -1;
+		return PCB_BB_INVALID;
+	}
+
+	if (top != NULL) *top = pcb->LayerGroups.cache.copper[topi];
+	if (bottom != NULL) *bottom = pcb->LayerGroups.cache.copper[boti];
+
+	return res;
+}
+
+static inline PCB_FUNC_UNUSED pcb_bool_t pcb_padstack_bb_drills(pcb_board_t *pcb, pcb_padstack_t *ps, pcb_layergrp_id_t grp)
+{
+	pcb_layergrp_id_t top, bot;
+	pcb_bb_type_t res = pcb_padstack_bbspan(pcb, ps, &top, &bot);
+	switch(res) {
+		case PCB_BB_THRU: return 1;
+		case PCB_BB_NONE: case PCB_BB_INVALID: return 0;
+		case PCB_BB_BB: return (grp >= bot) && (grp <= top);
+	}
+	return 0;
+}
+
+static inline PCB_FUNC_UNUSED pcb_padstack_shape_t *pcb_padstack_shape(pcb_padstack_t *ps, pcb_layer_type_t lyt, pcb_layer_combining_t comb)
+{
+	int n;
+	pcb_padstack_proto_t *proto = pcb_vtpadstack_proto_get(&ps->parent.data->ps_protos, ps->proto, 0);
+	if (proto == NULL)
+		return NULL;
+
+	lyt &= (PCB_LYT_ANYTHING | PCB_LYT_ANYWHERE);
+	for(n = 0; n < proto->len; n++)
+		if ((lyt == proto->shape[n].layer_mask) && (comb == proto->shape[n].comb))
+			return proto->shape+n;
+
+	return 0;
+}