harfbuzz: check in harfbuzz-ng, add gyp define to use it

This checks in harbuzz-ng b0d396aa88b3cdf8cea896bfeeba197656e1cdb1.

Setting use_harfbuzz_ng to 1 in gyp will cause us to build
harfbuzz-ng in place of harfbuzz.  So far this currently fails to
compile due to all our other code relying on the old API.

BUG=68551
TEST=./build/gyp_chromium -Duse_harfbuzz_ng=1, verify build breaks

Review URL: http://codereview.chromium.org/6052008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@70539 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -323,6 +323,10 @@
     # Use OpenSSL instead of NSS. Under development: see http://crbug.com/62803
     'use_openssl%': 0,
 
+    # Use Harfbuzz-NG instead of Harfbuzz.
+    # Under development: http://crbug.com/68551
+    'use_harfbuzz_ng%': 0,
+
     'conditions': [
       ['OS=="linux" or OS=="freebsd" or OS=="openbsd"', {
         # This will set gcc_version to XY if you are running gcc X.Y.*.

third_party/harfbuzz-ng/COPYING

@@ -0,0 +1,29 @@
+HarfBuzz is licensed under the so-called "Old MIT" license.  Details follow.
+
+Copyright (C) 2010  Google, Inc.
+Copyright (C) 2006  Behdad Esfahbod
+Copyright (C) 2009  Keith Stribley
+Copyright (C) 2009  Martin Hosken and SIL International
+Copyright (C) 2007  Chris Wilson
+Copyright (C) 2004,2007,2008,2009,2010  Red Hat, Inc.
+Copyright (C) 1998-2004  David Turner and Werner Lemberg
+For full copyright notices consult the individual files in the package.
+
+
+Permission is hereby granted, without written agreement and without
+license or royalty fees, to use, copy, modify, and distribute this
+software and its documentation for any purpose, provided that the
+above copyright notice and the following two paragraphs appear in
+all copies of this software.
+
+IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+
+THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

third_party/harfbuzz-ng/README

@@ -0,0 +1,9 @@
+This is HarfBuzz, a text shaping library.
+
+Bug reports on these files should be sent to the HarfBuzz mailing list as
+listed on http://harfbuzz.org/
+
+For license information, see the file COPYING.
+
+Behdad Esfahbod
+18 November 2010

third_party/harfbuzz-ng/README.chromium

@@ -0,0 +1,9 @@
+Name: HarfBuzz
+URL: http://freedesktop.org/wiki/Software/HarfBuzz
+
+This is harfbuzz-ng, a new implementation of harfbuzz with a different
+API from the old one.
+
+This code was taken from b0d396aa88b3cdf8cea896bfeeba197656e1cdb1
+(git://anongit.freedesktop.org/harfbuzz).  I also deleted all
+unneeded files from the root directory (but left src/ alone).

third_party/harfbuzz-ng/harfbuzz.gyp

@@ -0,0 +1,73 @@
+# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+{
+  'targets': [
+    {
+      'target_name': 'harfbuzz',
+      'type': '<(library)',
+      'sources': [
+        'src/hb-blob-private.h',
+        'src/hb-blob.c',
+        'src/hb-blob.h',
+        'src/hb-buffer-private.hh',
+        'src/hb-buffer.cc',
+        'src/hb-buffer.h',
+        'src/hb-common.c',
+        'src/hb-common.h',
+        'src/hb-font-private.h',
+        'src/hb-font.cc',
+        'src/hb-font.h',
+        'src/hb-ft.c',
+        'src/hb-icu.c',
+        'src/hb-language.c',
+        'src/hb-language.h',
+        'src/hb-object-private.h',
+        'src/hb-open-file-private.hh',
+        'src/hb-open-type-private.hh',
+        'src/hb-ot-head-private.hh',
+        'src/hb-ot-layout-common-private.hh',
+        'src/hb-ot-layout-gdef-private.hh',
+        'src/hb-ot-layout-gpos-private.hh',
+        'src/hb-ot-layout-gsub-private.hh',
+        'src/hb-ot-layout-gsubgpos-private.hh',
+        'src/hb-ot-layout-private.hh',
+        'src/hb-ot-layout.cc',
+        'src/hb-ot-map-private.hh',
+        'src/hb-ot-map.cc',
+        'src/hb-ot-shape-complex-arabic-table.h',
+        'src/hb-ot-shape-complex-arabic.cc',
+        'src/hb-ot-shape-complex-private.hh',
+        'src/hb-ot-shape-private.hh',
+        'src/hb-ot-shape.cc',
+        'src/hb-ot-tag.c',
+        'src/hb-private.h',
+        'src/hb-shape.cc',
+        'src/hb-shape.h',
+        'src/hb-unicode-private.h',
+        'src/hb-unicode.c',
+        'src/hb-unicode.h',
+        'src/hb.h',
+      ],
+      'include_dirs': [
+        'src',
+      ],
+      'direct_dependent_settings': {
+        'include_dirs': [
+          'src',
+        ],
+      },
+      'dependencies': [
+        '../../build/linux/system.gyp:freetype2',
+        '../../third_party/icu/icu.gyp:icuuc',
+      ],
+    },
+  ],
+}
+
+# Local Variables:
+# tab-width:2
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=2 shiftwidth=2:

third_party/harfbuzz-ng/src/Makefile.am

@@ -0,0 +1,147 @@
+# Process this file with automake to produce Makefile.in
+
+NULL =
+EXTRA_DIST = 
+
+# The following warning options are useful for debugging: -Wpadded -Wcast-align
+#AM_CXXFLAGS =
+
+lib_LTLIBRARIES = libharfbuzz.la
+
+HBCFLAGS =
+HBLIBS =
+HBSOURCES =  \
+	hb-blob.c \
+	hb-blob-private.h \
+	hb-buffer.cc \
+	hb-buffer-private.hh \
+	hb-common.c \
+	hb-font.cc \
+	hb-font-private.h \
+	hb-object-private.h \
+	hb-open-file-private.hh \
+	hb-open-type-private.hh \
+	hb-language.c \
+	hb-ot-head-private.hh \
+	hb-private.h \
+	hb-shape.cc \
+	hb-unicode.c \
+	hb-unicode-private.h \
+	$(NULL)
+HBHEADERS = \
+	hb.h \
+	hb-blob.h \
+	hb-buffer.h \
+	hb-common.h \
+	hb-font.h \
+	hb-language.h \
+	hb-shape.h \
+	hb-unicode.h \
+	$(NULL)
+
+HBSOURCES += \
+	hb-ot-layout.cc \
+	hb-ot-layout-common-private.hh \
+	hb-ot-layout-gdef-private.hh \
+	hb-ot-layout-gpos-private.hh \
+	hb-ot-layout-gsubgpos-private.hh \
+	hb-ot-layout-gsub-private.hh \
+	hb-ot-layout-private.hh \
+	hb-ot-map.cc \
+	hb-ot-map-private.hh \
+	hb-ot-shape.cc \
+	hb-ot-shape-complex-arabic.cc \
+	hb-ot-shape-complex-arabic-table.h \
+	hb-ot-shape-complex-private.hh \
+	hb-ot-shape-private.hh \
+	hb-ot-tag.c \
+	$(NULL)
+HBHEADERS += \
+	hb-ot.h \
+	hb-ot-layout.h \
+	hb-ot-shape.h \
+	hb-ot-tag.h \
+	$(NULL)
+
+if HAVE_GLIB
+HBCFLAGS += $(GLIB_CFLAGS)
+HBLIBS   += $(GLIB_LIBS)
+HBSOURCES += \
+	hb-glib.c \
+	$(NULL)
+HBHEADERS += \
+	hb-glib.h \
+	$(NULL)
+endif
+
+if HAVE_ICU
+HBCFLAGS += $(ICU_CFLAGS)
+HBLIBS   += $(ICU_LIBS)
+HBSOURCES += \
+	hb-icu.c \
+	$(NULL)
+HBHEADERS += \
+	hb-icu.h \
+	$(NULL)
+endif
+
+if HAVE_FREETYPE
+HBCFLAGS += $(FREETYPE_CFLAGS)
+HBLIBS   += $(FREETYPE_LIBS)
+HBSOURCES += \
+	hb-ft.c \
+	$(NULL)
+HBHEADERS += \
+	hb-ft.h \
+	$(NULL)
+endif
+
+if HAVE_GRAPHITE
+HBCFLAGS += $(GRAPHITE_CFLAGS)
+HBLIBS   += $(GRAPHITE_LIBS)
+HBSOURCES += \
+	hb-graphite.cc \
+	$(NULL)
+HBHEADERS += \
+	hb-graphite.h \
+	$(NULL)
+endif
+
+CXXLINK = $(LINK)
+libharfbuzz_la_SOURCES = $(HBSOURCES) $(HBHEADERS)
+libharfbuzz_la_CPPFLAGS = $(HBCFLAGS)
+libharfbuzz_la_LIBADD = $(HBLIBS)
+pkginclude_HEADERS = $(HBHEADERS)
+
+
+GENERATORS = \
+	gen-arabic-joining-table.py \
+	$(NULL)
+
+EXTRA_DIST += $(GENERATORS)
+
+noinst_PROGRAMS = main test
+
+main_SOURCES = main.cc
+main_CPPFLAGS = $(HBCFLAGS)
+main_LDADD = libharfbuzz.la $(HBLIBS)
+
+test_SOURCES = test.c
+test_CPPFLAGS = $(HBCFLAGS)
+test_LDADD = libharfbuzz.la $(HBLIBS)
+
+TESTS = \
+	check-c-linkage-decls.sh \
+	check-header-guards.sh \
+	check-internal-symbols.sh \
+	$(NULL)
+
+if HAVE_ICU
+else
+if HAVE_GRAPHITE
+else
+TESTS += check-libstdc++.sh
+endif
+endif
+
+-include $(top_srcdir)/git.mk

third_party/harfbuzz-ng/src/check-c-linkage-decls.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+LC_ALL=C
+export LC_ALL
+
+test -z "$srcdir" && srcdir=.
+stat=0
+
+cd "$srcdir"
+
+for x in hb-*.c hb-*.cc hb-*.h hb-*.hh ; do
+	if ! grep -q HB_BEGIN_DECLS "$x" || ! grep -q HB_END_DECLS "$x"; then
+		echo "Ouch, file $x does not HB_BEGIN_DECLS / HB_END_DECLS"
+		stat=1
+	fi
+done
+
+exit $stat

third_party/harfbuzz-ng/src/check-header-guards.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+LC_ALL=C
+export LC_ALL
+
+test -z "$srcdir" && srcdir=.
+stat=0
+
+cd "$srcdir"
+
+for x in hb-*.h hb-*.hh ; do
+	tag=`echo "$x" | tr 'a-z.-' 'A-Z_'`
+	lines=`grep "\<$tag\>" "$x" | wc -l`
+	if test "x$lines" != x3; then
+		echo "Ouch, header file $x does not have correct preprocessor guards"
+		stat=1
+	fi
+done
+
+exit $stat

third_party/harfbuzz-ng/src/check-internal-symbols.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+
+LC_ALL=C
+export LC_ALL
+
+if which nm 2>/dev/null >/dev/null; then
+	:
+else
+	echo "check-internal-symbols.sh: 'nm' not found; skipping test"
+	exit 0
+fi
+
+test -z "$srcdir" && srcdir=.
+test -z "$MAKE" && MAKE=make
+stat=0
+
+so=.libs/libharfbuzz.so
+if test -f "$so"; then
+	echo "Checking that we are exposing internal symbols"
+	if nm $so | grep ' T ' | grep -v ' T _fini\>\| T _init\>\| T hb_'; then
+		echo "Ouch, internal symbols exposed"
+		stat=1
+	fi
+else
+	echo "check-internal-symbols.sh: libharfbuzz.so not found; skipping test"
+fi
+
+exit $stat

third_party/harfbuzz-ng/src/check-libstdc++.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+LC_ALL=C
+export LC_ALL
+
+if which ldd 2>/dev/null >/dev/null; then
+	:
+else
+	echo "check-libstdc++.sh: 'ldd' not found; skipping test"
+	exit 0
+fi
+
+test -z "$srcdir" && srcdir=.
+stat=0
+
+so=.libs/libharfbuzz.so
+if test -f "$so"; then
+	echo "Checking that we are not linking to libstdc++"
+	if ldd $so | grep 'libstdc[+][+]'; then
+		echo "Ouch, linked to libstdc++"
+		stat=1
+	fi
+else
+	echo "check-libstdc++.sh: libharfbuzz.so not found; skipping test"
+fi
+
+exit $stat