Basically-working interop subtitle font handling.

5 files changed, 117 insertions, 0 deletions

diff --git a/test/data/dummy.ttf b/test/data/dummy.ttf
new file mode 100644
index 00000000..1353512a
--- /dev/null
+++ b/test/data/dummy.ttf
@@ -0,0 +1 @@
+Uap[�~�"ײ�B&�c�c�������O�F�JX����Px�{�(TI�{��8t��O�'����ـ���r����"@7p�N��ͷ�-����4��'�4�BVlhy�<y�g
\ No newline at end of file
diff --git a/test/dcp_font_test.cc b/test/dcp_font_test.cc
new file mode 100644
index 00000000..e50219a0
--- /dev/null
+++ b/test/dcp_font_test.cc
@@ -0,0 +1,72 @@
+/*
+    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+
+    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 "interop_subtitle_asset.h"
+#include "dcp.h"
+#include "cpl.h"
+#include "test.h"
+#include "reel.h"
+#include "util.h"
+#include "reel_subtitle_asset.h"
+#include <boost/test/unit_test.hpp>
+#include <cstdio>
+
+using std::list;
+using std::string;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::shared_array;
+
+/** Create a DCP with interop subtitles and check that the font is written and read back correctly */
+BOOST_AUTO_TEST_CASE (interop_dcp_font_test)
+{
+	boost::filesystem::path directory = "build/test/interop_dcp_font_test";
+	dcp::DCP dcp (directory);
+
+	shared_ptr<dcp::InteropSubtitleAsset> subs (new dcp::InteropSubtitleAsset ());
+	subs->add_font ("theFontId", "test/data/dummy.ttf");
+	subs->write (directory / "frobozz.xml");
+	check_file ("test/data/dummy.ttf", "build/test/interop_dcp_font_test/dummy.ttf");
+
+	shared_ptr<dcp::Reel> reel (new dcp::Reel ());
+	reel->add (shared_ptr<dcp::ReelAsset> (new dcp::ReelSubtitleAsset (subs, dcp::Fraction (24, 1), 24, 0)));
+
+	shared_ptr<dcp::CPL> cpl (new dcp::CPL ("", dcp::TRAILER));
+	cpl->add (reel);
+
+	dcp.add (cpl);
+	dcp.write_xml (dcp::INTEROP);
+
+	dcp::DCP dcp2 (directory);
+	dcp2.read ();
+	shared_ptr<dcp::SubtitleAsset> subs2 = dynamic_pointer_cast<dcp::SubtitleAsset> (
+		dcp2.cpls().front()->reels().front()->main_subtitle()->asset_ref().object()
+		);
+	BOOST_REQUIRE (subs2);
+	BOOST_REQUIRE_EQUAL (subs2->_fonts.size(), 1);
+
+	boost::uintmax_t const size = boost::filesystem::file_size ("test/data/dummy.ttf");
+	FILE* f = dcp::fopen_boost ("test/data/dummy.ttf", "r");
+	BOOST_REQUIRE (f);
+	shared_array<uint8_t> ref (new uint8_t[size]);
+	fread (ref.get(), 1, size, f);
+	fclose (f);
+
+	BOOST_CHECK_EQUAL (memcmp (subs2->_fonts["theFontId"].data.get(), ref.get(), size), 0);
+}
diff --git a/test/test.cc b/test/test.cc
index 0c3d2c5d..c83c1048 100644
--- a/test/test.cc
+++ b/test/test.cc
@@ -23,8 +23,11 @@
 #include "test.h"
 #include <libxml++/libxml++.h>
 #include <boost/test/unit_test.hpp>
+#include <cstdio>
 
 using std::string;
+using std::min;
+using std::stringstream;
 using std::list;
 
 boost::filesystem::path private_test;
@@ -106,4 +109,43 @@ check_xml (string ref, string test, list<string> ignore)
 	check_xml (ref_root, test_root, ignore);
 }
 
+void
+check_file (boost::filesystem::path ref, boost::filesystem::path check)
+{
+	uintmax_t N = boost::filesystem::file_size (ref);
+	BOOST_CHECK_EQUAL (N, boost::filesystem::file_size (check));
+	FILE* ref_file = dcp::fopen_boost (ref, "rb");
+	BOOST_CHECK (ref_file);
+	FILE* check_file = dcp::fopen_boost (check, "rb");
+	BOOST_CHECK (check_file);
+	
+	int const buffer_size = 65536;
+	uint8_t* ref_buffer = new uint8_t[buffer_size];
+	uint8_t* check_buffer = new uint8_t[buffer_size];
+
+	stringstream error;
+	error << "File " << check.string() << " differs from reference " << ref.string();
+	
+	while (N) {
+		uintmax_t this_time = min (uintmax_t (buffer_size), N);
+		size_t r = fread (ref_buffer, 1, this_time, ref_file);
+		BOOST_CHECK_EQUAL (r, this_time);
+		r = fread (check_buffer, 1, this_time, check_file);
+		BOOST_CHECK_EQUAL (r, this_time);
+
+		BOOST_CHECK_MESSAGE (memcmp (ref_buffer, check_buffer, this_time) == 0, error.str ());
+		if (memcmp (ref_buffer, check_buffer, this_time)) {
+			break;
+		}
+		
+		N -= this_time;
+	}
+
+	delete[] ref_buffer;
+	delete[] check_buffer;
+
+	fclose (ref_file);
+	fclose (check_file);
+}
+
 BOOST_GLOBAL_FIXTURE (TestConfig);
diff --git a/test/test.h b/test/test.h
index 4c941023..62a4c942 100644
--- a/test/test.h
+++ b/test/test.h
@@ -24,3 +24,4 @@ namespace xmlpp {
 extern boost::filesystem::path private_test;
 extern void check_xml (xmlpp::Element* ref, xmlpp::Element* test, std::list<std::string> ignore);
 extern void check_xml (std::string ref, std::string test, std::list<std::string> ignore);
+extern void check_file (boost::filesystem::path ref, boost::filesystem::path check);
diff --git a/test/wscript b/test/wscript
index f640f6fc..6cf0d958 100644
--- a/test/wscript
+++ b/test/wscript
@@ -29,6 +29,7 @@ def build(bld):
                  colour_test.cc
                  colour_conversion_test.cc
                  cpl_sar_test.cc
+                 dcp_font_test.cc
                  dcp_test.cc
                  dcp_time_test.cc
                  decryption_test.cc