1 files changed, 125 insertions, 0 deletions

diff --git a/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp b/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp
new file mode 100644
index 00000000000..86f9dbf5c40
--- /dev/null
+++ b/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp
@@ -0,0 +1,125 @@
+/*
+ * 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_GaussianYBlurOperation.h"
+#include "BLI_math.h"
+
+extern "C" {
+	#include "RE_pipeline.h"
+}
+
+GaussianYBlurOperation::GaussianYBlurOperation(): BlurBaseOperation() {
+	this->gausstab = NULL;
+	this->rad = 0;
+}
+
+void* GaussianYBlurOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
+	updateGauss(memoryBuffers);
+	void* buffer = getInputOperation(0)->initializeTileData(NULL, memoryBuffers);
+	return buffer;
+}
+
+void GaussianYBlurOperation::updateGauss(MemoryBuffer **memoryBuffers) {
+	if (this->gausstab == NULL) {
+		updateSize(memoryBuffers);
+		float rad = size*this->data->sizey;
+		if(rad<1)
+			rad= 1;
+		
+		this->rad = rad;
+		this->gausstab = BlurBaseOperation::make_gausstab(rad);
+	}
+}
+
+void GaussianYBlurOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void *data) {
+
+	float tempColor[4];
+	tempColor[0] = 0;
+	tempColor[1] = 0;
+	tempColor[2] = 0;
+	tempColor[3] = 0;
+	float overallmultiplyer = 0;
+	MemoryBuffer* inputBuffer = (MemoryBuffer*)data;
+	float* buffer = inputBuffer->getBuffer();
+	int bufferwidth = inputBuffer->getWidth();
+	int bufferstartx = inputBuffer->getRect()->xmin;
+	int bufferstarty = inputBuffer->getRect()->ymin;
+
+	int miny = y - this->rad;
+	int maxy = y + this->rad;
+	int minx = x;
+	int maxx = x;
+	miny = max(miny, inputBuffer->getRect()->ymin);
+	minx = max(minx, inputBuffer->getRect()->xmin);
+	maxy = min(maxy, inputBuffer->getRect()->ymax);
+	maxx = min(maxx, inputBuffer->getRect()->xmax);
+
+	int step = getStep();
+	int index = 0;
+	for (int ny = miny ; ny < maxy ; ny +=step) {
+		int bufferindex = ((minx - bufferstartx)*4)+((ny-bufferstarty)*4*bufferwidth);
+		float multiplyer = gausstab[index++];
+		tempColor[0] += multiplyer * buffer[bufferindex];
+		tempColor[1] += multiplyer * buffer[bufferindex+1];
+		tempColor[2] += multiplyer * buffer[bufferindex+2];
+		tempColor[3] += multiplyer * buffer[bufferindex+3];
+		overallmultiplyer += multiplyer;
+	}
+	float divider = 1.0/overallmultiplyer;
+	color[0] = tempColor[0]*divider;
+	color[1] = tempColor[1]*divider;
+	color[2] = tempColor[2]*divider;
+	color[3] = tempColor[3]*divider;
+}
+
+void GaussianYBlurOperation::deinitExecution() {
+	BlurBaseOperation::deinitExecution();
+	delete this->gausstab;
+	this->gausstab = NULL;
+}
+
+bool GaussianYBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
+	rcti newInput;
+	rcti sizeInput;
+	sizeInput.xmin = 0;
+	sizeInput.ymin = 0;
+	sizeInput.xmax = 5;
+	sizeInput.ymax = 5;
+	
+	NodeOperation * operation = this->getInputOperation(1);
+	if (operation->determineDependingAreaOfInterest(&sizeInput, readOperation, output)) {
+		return true;
+	}else {
+		if (this->gausstab == NULL) {
+			newInput.xmax = this->getWidth();
+			newInput.xmin = 0;
+			newInput.ymax = this->getHeight();
+			newInput.ymin = 0;
+		} else {
+			newInput.xmax = input->xmax;
+			newInput.xmin = input->xmin;
+			newInput.ymax = input->ymax + rad;
+			newInput.ymin = input->ymin - rad;
+		}
+		return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
+	}
+}