Import ptex-2.1.28 as graphics/ptex.

Ptex is a texture mapping system developed by Walt Disney Animation Studios for
production-quality rendering:

 - No UV assignment is required! Ptex applies a separate texture to each face
   of a subdivision or polygon mesh.

 - The Ptex file format can efficiently store hundreds of thousands of texture
   images in a single file.

 - The Ptex API provides cached file I/O and high-quality filtering, everything
   that is needed to easily add Ptex support to a production-quality renderer
   or texture authoring application.

graphics/ptex/DESCR

@@ -0,0 +1,12 @@
+Ptex is a texture mapping system developed by Walt Disney Animation Studios for
+production-quality rendering:
+
+ - No UV assignment is required! Ptex applies a separate texture to each face
+   of a subdivision or polygon mesh.
+
+ - The Ptex file format can efficiently store hundreds of thousands of texture
+   images in a single file.
+
+ - The Ptex API provides cached file I/O and high-quality filtering, everything
+   that is needed to easily add Ptex support to a production-quality renderer
+   or texture authoring application.

graphics/ptex/Makefile

@@ -0,0 +1,22 @@
+# $NetBSD: Makefile,v 1.1 2016/10/18 02:47:16 kamil Exp $
+
+DISTNAME=	ptex-2.1.28
+CATEGORIES=	graphics
+MASTER_SITES=	${MASTER_SITE_GITHUB:=wdas/}
+GITHUB_TAG=	v${PKGVERSION_NOREV}
+
+MAINTAINER=	pkgsrc-users@NetBSD.org
+HOMEPAGE=	http://ptex.us/
+COMMENT=	Per-Face Texture Mapping for Production Rendering
+LICENSE=	modified-bsd # with slightly changes spelling
+
+USE_CMAKE=	yes
+USE_LANGUAGES=	c c++
+
+BUILDLINK_TRANSFORM+=	opt:-std=c++98:-std=gnu++98 # alloca(3)
+
+TEST_TARGET=	test
+
+TEST_ENV+=	LD_LIBRARY_PATH=${WRKSRC}/src/ptex/
+
+.include "../../mk/bsd.pkg.mk"

graphics/ptex/PLIST

@@ -0,0 +1,9 @@
+@comment $NetBSD: PLIST,v 1.1 2016/10/18 02:47:16 kamil Exp $
+bin/ptxinfo
+include/PtexHalf.h
+include/PtexInt.h
+include/PtexUtils.h
+include/PtexVersion.h
+include/Ptexture.h
+lib/libPtex.a
+lib/libPtex.so

graphics/ptex/buildlink3.mk

@@ -0,0 +1,12 @@
+# $NetBSD: buildlink3.mk,v 1.1 2016/10/18 02:47:16 kamil Exp $
+
+BUILDLINK_TREE+=	ptex
+
+.if !defined(PTEX_BUILDLINK3_MK)
+PTEX_BUILDLINK3_MK:=
+
+BUILDLINK_API_DEPENDS.ptex+=	ptex>=2.1.28
+BUILDLINK_PKGSRCDIR.ptex?=	../../graphics/ptex
+.endif	# PTEX_BUILDLINK3_MK
+
+BUILDLINK_TREE+=	-ptex

graphics/ptex/distinfo

@@ -0,0 +1,7 @@
+$NetBSD: distinfo,v 1.1 2016/10/18 02:47:16 kamil Exp $
+
+SHA1 (ptex-2.1.28.tar.gz) = 67ba20b98247a12f075631b6e65271953e519eda
+RMD160 (ptex-2.1.28.tar.gz) = eecce0d629551a827a866c63e2ca17651deef5fd
+SHA512 (ptex-2.1.28.tar.gz) = ddce3c79f14d196e550c1e8a5b371482f88190cd667a2e2aa84601de1639f7cabb8571c1b3a49b48df46ce550d27088a00a67b1403c3bfec2ed73437c3dca3e8
+Size (ptex-2.1.28.tar.gz) = 305327 bytes
+SHA1 (patch-src_ptex_PtexPlatform.h) = f3c859f62b3f4ef0b0274939c522c735681fb70e

graphics/ptex/patches/patch-src_ptex_PtexPlatform.h

@@ -0,0 +1,18 @@
+$NetBSD: patch-src_ptex_PtexPlatform.h,v 1.1 2016/10/18 02:47:17 kamil Exp $
+
+The alloca(3) function is an extension and place of its definition varies.
+The <alloca.h> header is required on SunOS and acceptable on other systems, but
+unavailable on NetBSD.
+
+--- src/ptex/PtexPlatform.h.orig	2016-04-04 17:14:05.000000000 +0000
++++ src/ptex/PtexPlatform.h
+@@ -62,7 +62,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ 
+ // linux/unix/posix
+ #include <stdlib.h>
++#if !defined(__NetBSD__)
+ #include <alloca.h>
++#endif
+ #include <string.h>
+ #include <pthread.h>
+