1 files changed, 71 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_ProjectorLensDistortionOperation.cpp b/source/blender/compositor/operations/COM_ProjectorLensDistortionOperation.cpp
new file mode 100644
index 00000000000..adb72f9abb3
--- /dev/null
+++ b/source/blender/compositor/operations/COM_ProjectorLensDistortionOperation.cpp
@@ -0,0 +1,71 @@
+/*
+ * 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_ProjectorLensDistortionOperation.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+
+ProjectorLensDistortionOperation::ProjectorLensDistortionOperation(): NodeOperation() {
+	this->addInputSocket(COM_DT_COLOR);
+	this->addOutputSocket(COM_DT_COLOR);
+	this->setComplex(true);
+	this->inputProgram = NULL;
+}
+void ProjectorLensDistortionOperation::initExecution() {
+	this->inputProgram = this->getInputSocketReader(0);
+	kr = 0.25f*MAX2(MIN2(this->dispersion, 1.f), 0.f);
+	kr2 = kr * 20;
+}
+
+void* ProjectorLensDistortionOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
+	void* buffer = inputProgram->initializeTileData(NULL, memoryBuffers);
+	return buffer;
+}
+
+void ProjectorLensDistortionOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void* data) {
+	float inputValue[4];
+	const float height = this->getHeight();
+	const float width = this->getWidth();
+	const float v = (y + 0.5f)/height;
+	const float u = (x + 0.5f)/width;
+	MemoryBuffer * inputBuffer = (MemoryBuffer*)data;
+	inputBuffer->readCubic(inputValue, (u*width + kr2) - 0.5f, v*height - 0.5f);
+	color[0] = inputValue[0];
+	inputBuffer->read(inputValue, x, y);
+	color[1] = inputValue[1];
+	inputBuffer->readCubic(inputValue, (u*width - kr2) - 0.5f, v*height - 0.5f);
+	color[2] = inputValue[2];
+	color[3] = 1.0f;
+}
+
+void ProjectorLensDistortionOperation::deinitExecution() {
+	this->inputProgram = NULL;
+}
+
+bool ProjectorLensDistortionOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
+	rcti newInput;
+	newInput.ymax = input->ymax;
+	newInput.ymin = input->ymin;
+	newInput.xmin = input->xmin-kr2-2;
+	newInput.xmax = input->xmax+kr2+2;
+	return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
+}