1 files changed, 66 insertions, 0 deletions
diff --git a/source/blender/compositor/nodes/COM_AlphaOverNode.cc b/source/blender/compositor/nodes/COM_AlphaOverNode.cc
new file mode 100644
index 00000000000..640fbf49808
--- /dev/null
+++ b/source/blender/compositor/nodes/COM_AlphaOverNode.cc
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ *
+ * Copyright 2011, Blender Foundation.
+ */
+
+#include "COM_AlphaOverNode.h"
+
+#include "COM_AlphaOverKeyOperation.h"
+#include "COM_AlphaOverMixedOperation.h"
+#include "COM_AlphaOverPremultiplyOperation.h"
+#include "COM_MixOperation.h"
+
+#include "COM_SetValueOperation.h"
+#include "DNA_material_types.h" /* the ramp types */
+
+void AlphaOverNode::convertToOperations(NodeConverter &converter,
+                                        const CompositorContext & /*context*/) const
+{
+  NodeInput *color1Socket = this->getInputSocket(1);
+  NodeInput *color2Socket = this->getInputSocket(2);
+  bNode *editorNode = this->getbNode();
+
+  MixBaseOperation *convertProg;
+  NodeTwoFloats *ntf = (NodeTwoFloats *)editorNode->storage;
+  if (ntf->x != 0.0f) {
+    AlphaOverMixedOperation *mixOperation = new AlphaOverMixedOperation();
+    mixOperation->setX(ntf->x);
+    convertProg = mixOperation;
+  }
+  else if (editorNode->custom1) {
+    convertProg = new AlphaOverKeyOperation();
+  }
+  else {
+    convertProg = new AlphaOverPremultiplyOperation();
+  }
+
+  convertProg->setUseValueAlphaMultiply(false);
+  if (color1Socket->isLinked()) {
+    convertProg->setResolutionInputSocketIndex(1);
+  }
+  else if (color2Socket->isLinked()) {
+    convertProg->setResolutionInputSocketIndex(2);
+  }
+  else {
+    convertProg->setResolutionInputSocketIndex(0);
+  }
+
+  converter.addOperation(convertProg);
+  converter.mapInputSocket(getInputSocket(0), convertProg->getInputSocket(0));
+  converter.mapInputSocket(getInputSocket(1), convertProg->getInputSocket(1));
+  converter.mapInputSocket(getInputSocket(2), convertProg->getInputSocket(2));
+  converter.mapOutputSocket(getOutputSocket(0), convertProg->getOutputSocket(0));
+}