1 files changed, 142 insertions, 0 deletions

diff --git a/source/blender/compositor/operations/COM_VariableSizeBokehBlurOperation.cpp b/source/blender/compositor/operations/COM_VariableSizeBokehBlurOperation.cpp
new file mode 100644
index 00000000000..e97b1155e22
--- /dev/null
+++ b/source/blender/compositor/operations/COM_VariableSizeBokehBlurOperation.cpp
@@ -0,0 +1,142 @@
+/*
+ * 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_VariableSizeBokehBlurOperation.h"
+#include "BLI_math.h"
+
+extern "C" {
+	#include "RE_pipeline.h"
+}
+
+VariableSizeBokehBlurOperation::VariableSizeBokehBlurOperation() : NodeOperation() {
+	this->addInputSocket(COM_DT_COLOR);
+	this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE); // do not resize the bokeh image.
+	this->addInputSocket(COM_DT_VALUE);
+	this->addOutputSocket(COM_DT_COLOR);
+	this->setComplex(true);
+
+	this->inputProgram = NULL;
+	this->inputBokehProgram = NULL;
+	this->inputSizeProgram = NULL;
+	this->maxBlur = 32.0f;
+	this->threshold = 0.0f;
+}
+
+
+void VariableSizeBokehBlurOperation::initExecution() {
+	this->inputProgram = getInputSocketReader(0);
+	this->inputBokehProgram = getInputSocketReader(1);
+	this->inputSizeProgram = getInputSocketReader(2);
+	QualityStepHelper::initExecution(COM_QH_INCREASE);
+}
+
+void VariableSizeBokehBlurOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void* data) {
+	float tempColor[4];
+	float readColor[4];
+	float bokeh[4];
+	tempColor[0] = 0;
+	tempColor[1] = 0;
+	tempColor[2] = 0;
+	tempColor[3] = 0;
+	float tempSize[4];
+	float overallmultiplyerr = 0;
+	float overallmultiplyerg = 0;
+	float overallmultiplyerb = 0;
+
+	int miny = y - maxBlur;
+	int maxy = y + maxBlur;
+	int minx = x - maxBlur;
+	int maxx = x + maxBlur;
+	{
+		inputProgram->read(readColor, x, y, COM_PS_NEAREST, inputBuffers);
+		tempColor[0] += readColor[0];
+		tempColor[1] += readColor[1];
+		tempColor[2] += readColor[2];
+		overallmultiplyerr += 1;
+		overallmultiplyerg += 1;
+		overallmultiplyerb += 1;
+		
+		for (int ny = miny ; ny < maxy ; ny += QualityStepHelper::getStep()) {
+			for (int nx = minx ; nx < maxx ; nx += QualityStepHelper::getStep()) {
+				if (nx >=0 && nx < this->getWidth() && ny >= 0 && ny < getHeight()) {
+					inputSizeProgram->read(tempSize, nx, ny, COM_PS_NEAREST, inputBuffers);
+					float size = tempSize[0];
+					size += this->threshold;
+					float dx = nx - x;
+					float dy = ny - y;
+					if (nx == x && ny == y) {
+					} else if (size>=  fabs(dx) && size >= fabs(dy)) {
+						float u = 256+ dx*256/size;
+						float v = 256+ dy*256/size;
+						inputBokehProgram->read(bokeh, u, v, COM_PS_NEAREST, inputBuffers);
+						inputProgram->read(readColor, nx, ny, COM_PS_NEAREST, inputBuffers);
+						tempColor[0] += bokeh[0] * readColor[0];
+						tempColor[1] += bokeh[1] * readColor[1];
+						tempColor[2] += bokeh[2]* readColor[2];
+						overallmultiplyerr += bokeh[0];
+						overallmultiplyerg += bokeh[1];
+						overallmultiplyerb += bokeh[2];
+					}
+				}
+			}
+		}
+		color[0] = tempColor[0]*(1.0/overallmultiplyerr);
+		color[1] = tempColor[1]*(1.0/overallmultiplyerg);
+		color[2] = tempColor[2]*(1.0/overallmultiplyerb);
+		color[3] = 1.0f;
+	}
+
+}
+
+void VariableSizeBokehBlurOperation::deinitExecution() {
+	this->inputProgram = NULL;
+	this->inputBokehProgram = NULL;
+	this->inputSizeProgram = NULL;
+}
+
+bool VariableSizeBokehBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
+	rcti newInput;
+	rcti bokehInput;
+
+	newInput.xmax = input->xmax + maxBlur+2;
+	newInput.xmin = input->xmin - maxBlur+2;
+	newInput.ymax = input->ymax + maxBlur-2;
+	newInput.ymin = input->ymin - maxBlur-2;
+	bokehInput.xmax = 512;
+	bokehInput.xmin = 0;
+	bokehInput.ymax = 512;
+	bokehInput.ymin = 0;
+
+	NodeOperation* operation = getInputOperation(2);
+	if (operation->determineDependingAreaOfInterest(&newInput, readOperation, output) ) {
+		return true;
+	}
+	operation = getInputOperation(1);
+	if (operation->determineDependingAreaOfInterest(&bokehInput, readOperation, output) ) {
+		return true;
+	}
+	operation = getInputOperation(0);
+	if (operation->determineDependingAreaOfInterest(&newInput, readOperation, output) ) {
+		return true;
+	}
+	return false;
+}