Index: drv_approx.c
===================================================================
--- drv_approx.c	(nonexistent)
+++ drv_approx.c	(revision 20258)
@@ -0,0 +1,67 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *
+ *  ttf stroker
+ *  pcb-rnd Copyright (C) 2018 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ *  Contact:
+ *    Project page: http://repo.hu/projects/pcb-rnd
+ *    lead developer: email to pcb-rnd (at) igor2.repo.hu
+ *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
+ */
+
+/* Dummy stroker that approximates curves with line segments */
+
+#include "ttf_load.h"
+#include "drv_approx.h"
+
+char *drv_approx_comment = "!!";
+
+static double sqr(double a)
+{
+	return a*a;
+}
+
+int stroke_approx_conic_to(const FT_Vector *control, const FT_Vector *to, void *s_)
+{
+	pcb_ttf_stroke_t *s = (pcb_ttf_stroke_t *)s_;
+	double t;
+	double nodes = 10, td = 1.0 / nodes;
+	FT_Vector v;
+
+	if (drv_approx_comment != NULL) printf("%s conic to {\n", drv_approx_comment);
+	for(t = 0.0; t <= 1.0; t += td) {
+		v.x = sqr(1.0-t) * s->x + 2*t*(1.0-t)*control->x + t*t*to->x;
+		v.y = sqr(1.0-t) * s->y + 2*t*(1.0-t)*control->y + t*t*to->y;
+		s->funcs.line_to(&v, s);
+	}
+	if (drv_approx_comment != NULL) printf("%s }\n", drv_approx_comment);
+
+	s->x = to->x;
+	s->y = to->y;
+	return 0;
+}
+
+int stroke_approx_cubic_to(const FT_Vector *control1, const FT_Vector *control2, const FT_Vector *to, void *s_)
+{
+	pcb_ttf_stroke_t *s = (pcb_ttf_stroke_t *)s_;
+	if (drv_approx_comment != NULL) printf("%s cubic to {\n", drv_approx_comment);
+	if (drv_approx_comment != NULL) printf("%s }\n", drv_approx_comment);
+	return 0;
+}
Index: drv_approx.h
===================================================================
--- drv_approx.h	(nonexistent)
+++ drv_approx.h	(revision 20258)
@@ -0,0 +1,4 @@
+extern char *drv_approx_comment;
+
+int stroke_approx_conic_to(const FT_Vector *control, const FT_Vector *to, void *s_);
+int stroke_approx_cubic_to(const FT_Vector *control1, const FT_Vector *control2, const FT_Vector *to, void *s_);