Spiro is the creation of Raph Levien. It simplifies the drawing of beautiful

curves.

Using bezier splines an artist can easily draw curves with the same slope on
either side of an on-curve point. Spiros, on the other hand, are based on
clothoid splines which make it easy to maintain constant curvature as well as
constant slope. Such curves will simply look nicer.

Raph Levien's spiro splines only use on-curve points and so are easier to use
and more intuitive to the artist.

This library will take an array of spiro control points and convert them into
a series of bezier splines which can then be used in the myriad of ways the
world has come to use beziers.

6 files changed, 65 insertions, 1 deletions

diff --git a/graphics/Makefile b/graphics/Makefile
index bcce0de73c6..06c7acf224d 100644
--- a/graphics/Makefile
+++ b/graphics/Makefile
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.761 2017/04/04 13:08:16 wiz Exp $
+# $NetBSD: Makefile,v 1.762 2017/05/04 19:21:35 adam Exp $
 #
 
 COMMENT=	Graphics tools and libraries
@@ -323,6 +323,7 @@ SUBDIR+=	libraw013
 SUBDIR+=	librsvg
 SUBDIR+=	libscigraphica
 SUBDIR+=	libsixel
+SUBDIR+=	libspiro
 SUBDIR+=	libv4l
 SUBDIR+=	libvideogfx
 SUBDIR+=	libwebp
diff --git a/graphics/libspiro/DESCR b/graphics/libspiro/DESCR
new file mode 100644
index 00000000000..f34f304c2e1
--- /dev/null
+++ b/graphics/libspiro/DESCR
@@ -0,0 +1,14 @@
+Spiro is the creation of Raph Levien. It simplifies the drawing of beautiful
+curves.
+
+Using bezier splines an artist can easily draw curves with the same slope on
+either side of an on-curve point. Spiros, on the other hand, are based on
+clothoid splines which make it easy to maintain constant curvature as well as
+constant slope. Such curves will simply look nicer.
+
+Raph Levien's spiro splines only use on-curve points and so are easier to use
+and more intuitive to the artist.
+
+This library will take an array of spiro control points and convert them into
+a series of bezier splines which can then be used in the myriad of ways the
+world has come to use beziers.
diff --git a/graphics/libspiro/Makefile b/graphics/libspiro/Makefile
new file mode 100644
index 00000000000..758f8760ef1
--- /dev/null
+++ b/graphics/libspiro/Makefile
@@ -0,0 +1,24 @@
+# $NetBSD: Makefile,v 1.1 2017/05/04 19:21:35 adam Exp $
+
+DISTNAME=	libspiro-dist-0.5.20150702
+PKGNAME=	${DISTNAME:S/-dist-/-/}
+CATEGORIES=	graphics
+MASTER_SITES=	${MASTER_SITE_GITHUB:=fontforge/}
+
+MAINTAINER=	adam@NetBSD.org
+HOMEPAGE=	http://fontforge.github.io/
+COMMENT=	Simplifies the drawing of beautiful curves
+LICENSE=	gnu-gpl-v3
+
+GITHUB_PROJECT=	libspiro
+GITHUB_RELEASE=	${PKGVERSION_NOREV}
+WRKSRC=		${WRKDIR}/${PKGNAME_NOREV}
+
+USE_LANGUAGES=		c
+USE_LIBTOOL=		yes
+GNU_CONFIGURE=		yes
+
+#PKGCONFIG_OVERRIDE_STAGE=	post-configure
+PKGCONFIG_OVERRIDE+=		libspiro.pc.in
+
+.include "../../mk/bsd.pkg.mk"
diff --git a/graphics/libspiro/PLIST b/graphics/libspiro/PLIST
new file mode 100644
index 00000000000..033a88a93a3
--- /dev/null
+++ b/graphics/libspiro/PLIST
@@ -0,0 +1,7 @@
+@comment $NetBSD: PLIST,v 1.1 2017/05/04 19:21:35 adam Exp $
+include/bezctx.h
+include/bezctx_intf.h
+include/spiro.h
+include/spiroentrypoints.h
+lib/libspiro.la
+lib/pkgconfig/libspiro.pc
diff --git a/graphics/libspiro/buildlink3.mk b/graphics/libspiro/buildlink3.mk
new file mode 100644
index 00000000000..e21d737577a
--- /dev/null
+++ b/graphics/libspiro/buildlink3.mk
@@ -0,0 +1,12 @@
+# $NetBSD: buildlink3.mk,v 1.1 2017/05/04 19:21:35 adam Exp $
+
+BUILDLINK_TREE+=	libspiro
+
+.if !defined(LIBSPIRO_BUILDLINK3_MK)
+LIBSPIRO_BUILDLINK3_MK:=
+
+BUILDLINK_API_DEPENDS.libspiro+=	libspiro>=0.5.20150702
+BUILDLINK_PKGSRCDIR.libspiro?=		../../graphics/libspiro
+.endif	# LIBSPIRO_BUILDLINK3_MK
+
+BUILDLINK_TREE+=	-libspiro
diff --git a/graphics/libspiro/distinfo b/graphics/libspiro/distinfo
new file mode 100644
index 00000000000..7d773005a73
--- /dev/null
+++ b/graphics/libspiro/distinfo
@@ -0,0 +1,6 @@
+$NetBSD: distinfo,v 1.1 2017/05/04 19:21:35 adam Exp $
+
+SHA1 (libspiro-dist-0.5.20150702.tar.gz) = 2520a0d4c43e9db3d2d137885a8a29633f4b2c5e
+RMD160 (libspiro-dist-0.5.20150702.tar.gz) = 7bc98f9a77cd22262f4c1c1b044c6efe14237304
+SHA512 (libspiro-dist-0.5.20150702.tar.gz) = ae09915b2738cc2448df2cb00831e65fa45e887a7af9631d7361f5d2fca0b800588ea1d7c74c42e0e250835f3a322e64d44a7b18b2fd6641ac61e6adc1f03da8
+Size (libspiro-dist-0.5.20150702.tar.gz) = 411900 bytes