Add XYZFrame and use it.

1 files changed, 49 insertions, 0 deletions

diff --git a/src/xyz_frame.cc b/src/xyz_frame.cc
new file mode 100644
index 00000000..78df3f33
--- /dev/null
+++ b/src/xyz_frame.cc
@@ -0,0 +1,49 @@
+/*
+    Copyright (C) 2012-2013 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 <cassert>
+#include "xyz_frame.h"
+
+using namespace libdcp;
+
+/** Construct an XYZFrame, taking ownership of the opj_image_t */
+XYZFrame::XYZFrame (opj_image_t* image)
+	: _opj_image (image)
+{
+	assert (_opj_image->numcomps == 3);
+}
+
+XYZFrame::~XYZFrame ()
+{
+	opj_image_destroy (_opj_image);
+}
+
+int *
+XYZFrame::data (int c) const
+{
+	assert (c >= 0 && c < 3);
+	return _opj_image->comps[c].data;
+}
+
+libdcp::Size
+XYZFrame::size () const
+{
+	/* XXX: this may not be right; x0 and y0 can presumably be non-zero */
+	return libdcp::Size (_opj_image->x1, _opj_image->y1);
+}