1 files changed, 78 insertions, 0 deletions
diff --git a/source/blender/nodes/composite/nodes/node_composite_premulkey.c b/source/blender/nodes/composite/nodes/node_composite_premulkey.c
new file mode 100644
index 00000000000..066a8a81891
--- /dev/null
+++ b/source/blender/nodes/composite/nodes/node_composite_premulkey.c
@@ -0,0 +1,78 @@
+/*
+* $Id: CMP_premulkey.c 36333 2011-04-26 09:27:43Z lukastoenne $
+*
+* ***** BEGIN GPL LICENSE BLOCK *****
+*
+* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+* 
+* The Original Code is Copyright (C) 2006 Blender Foundation.
+* All rights reserved.
+* 
+* The Original Code is: all of this file.
+* 
+* Contributor(s): none yet.
+* 
+* ***** END GPL LICENSE BLOCK *****
+
+*/
+
+/** \file blender/nodes/composite/nodes/node_composite_premulkey.c
+ *  \ingroup cmpnodes
+ */
+
+
+#include "node_composite_util.h"
+
+/* **************** Premul and Key Alpha Convert ******************** */
+
+static bNodeSocketTemplate cmp_node_premulkey_in[]= {
+	{	SOCK_RGBA, 1, "Image",			0.8f, 0.8f, 0.8f, 1.0f},
+	{	-1, 0, ""	}
+};
+static bNodeSocketTemplate cmp_node_premulkey_out[]= {
+	{	SOCK_RGBA, 0, "Image"},
+	{	-1, 0, ""	}
+};
+
+static void node_composit_exec_premulkey(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
+{
+	if(out[0]->hasoutput==0)
+		return;
+	
+	if(in[0]->data) {
+		CompBuf *stackbuf, *cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
+
+		stackbuf= dupalloc_compbuf(cbuf);
+		premul_compbuf(stackbuf, node->custom1 == 1);
+
+		out[0]->data = stackbuf;
+		if(cbuf != in[0]->data)
+			free_compbuf(cbuf);
+	}
+}
+
+void register_node_type_cmp_premulkey(ListBase *lb)
+{
+	static bNodeType ntype;
+
+	node_type_base(&ntype, CMP_NODE_PREMULKEY, "Alpha Convert", NODE_CLASS_CONVERTOR, NODE_OPTIONS);
+	node_type_socket_templates(&ntype, cmp_node_premulkey_in, cmp_node_premulkey_out);
+	node_type_size(&ntype, 140, 100, 320);
+	node_type_exec(&ntype, node_composit_exec_premulkey);
+
+	nodeRegisterType(lb, &ntype);
+}
+
+