1 files changed, 68 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_FlipOperation.cpp b/source/blender/compositor/operations/COM_FlipOperation.cpp
new file mode 100644
index 00000000000..afe3173ab0f
--- /dev/null
+++ b/source/blender/compositor/operations/COM_FlipOperation.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2011, Blender Foundation.
+ *
+ * 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.
+ *
+ * Contributor: 
+ *		Jeroen Bakker 
+ *		Monique Dewanchand
+ */
+
+#include "COM_FlipOperation.h"
+
+FlipOperation::FlipOperation() : NodeOperation() {
+	this->addInputSocket(COM_DT_COLOR);
+	this->addOutputSocket(COM_DT_COLOR);
+	this->setResolutionInputSocketIndex(0);
+	this->inputOperation = NULL;
+	this->flipX = true;
+	this->flipY = false;
+}
+void FlipOperation::initExecution() {
+	this->inputOperation = this->getInputSocketReader(0);
+}
+
+void FlipOperation::deinitExecution() {
+	this->inputOperation = NULL;
+}
+
+
+void FlipOperation::executePixel(float *color,float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
+	float nx = this->flipX?this->getWidth()-1-x:x;
+	float ny = this->flipY?this->getHeight()-1-y:y;
+	
+	this->inputOperation->read(color, nx, ny, sampler, inputBuffers);
+}
+
+bool FlipOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
+	rcti newInput;
+	
+	if (this->flipX) {
+		newInput.xmax = (this->getWidth()- 1 - input->xmin)+1;
+		newInput.xmin = (this->getWidth()- 1 - input->xmax)-1;
+	} else {
+		newInput.xmin = input->xmin;
+		newInput.xmax = input->xmax;
+	}
+	if (this->flipY) {
+		newInput.ymax = (this->getHeight()- 1 - input->ymin)+1;
+		newInput.ymin = (this->getHeight()- 1 - input->ymax)-1;
+	} else {
+		newInput.ymin = input->ymin;
+		newInput.ymax = input->ymax;
+	}
+	
+	return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
+}