Clarify (a bit) byte ordering for RGBA frames.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/argb_frame.cc b/src/argb_frame.cc
new file mode 100644
index 00000000..7a9ad2b9
--- /dev/null
+++ b/src/argb_frame.cc
@@ -0,0 +1,41 @@
+/*
+    Copyright (C) 2012 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 "argb_frame.h"
+
+using namespace libdcp;
+
+ARGBFrame::ARGBFrame (int width, int height)
+	: _width (width)
+	, _height (height)
+{
+	_data = new uint8_t[width * height * 4];
+}
+
+
+ARGBFrame::~ARGBFrame ()
+{
+	delete[] _data;
+}
+
+int
+ARGBFrame::stride () const
+{
+	return _width * 4;
+}