1 files changed, 97 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_AntiAliasOperation.cpp b/source/blender/compositor/operations/COM_AntiAliasOperation.cpp
new file mode 100644
index 00000000000..729d04c182e
--- /dev/null
+++ b/source/blender/compositor/operations/COM_AntiAliasOperation.cpp
@@ -0,0 +1,97 @@
+/*
+ * 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_AntiAliasOperation.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+extern "C" {
+	#include "RE_render_ext.h"
+}
+
+
+AntiAliasOperation::AntiAliasOperation(): NodeOperation() {
+	this->addInputSocket(COM_DT_VALUE);
+	this->addOutputSocket(COM_DT_VALUE);
+	this->valueReader = NULL;
+	this->buffer = NULL;
+	this->setComplex(true);
+}
+void AntiAliasOperation::initExecution() {
+	this->valueReader = this->getInputSocketReader(0);
+	NodeOperation::initMutex();
+}
+
+void AntiAliasOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void * data) {
+	if (y < 0 || y >= this->height || x < 0 || x >= this->width) {
+		color[0] = 0.0f;
+	} else {
+		int offset = y*this->width + x;
+		color[0] = buffer[offset]/255.0f;
+	}
+	
+}
+
+void AntiAliasOperation::deinitExecution() {
+	this->valueReader = NULL;
+	if (this->buffer) {
+		delete buffer;
+	}
+	NodeOperation::deinitMutex();
+}
+
+bool AntiAliasOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
+	rcti imageInput;
+	if (this->buffer) {
+		return false;
+	} else {
+		NodeOperation* operation = getInputOperation(0);
+		imageInput.xmax = operation->getWidth();
+		imageInput.xmin = 0;
+		imageInput.ymax = operation->getHeight();
+		imageInput.ymin = 0;
+		if (operation->determineDependingAreaOfInterest(&imageInput, readOperation, output) ) {
+			return true;
+		}
+	}
+	return false;
+}
+
+void* AntiAliasOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
+	if (this->buffer) {return buffer;}
+	BLI_mutex_lock(getMutex());
+	if (this->buffer == NULL) {
+		MemoryBuffer* tile = (MemoryBuffer*)valueReader->initializeTileData(rect, memoryBuffers);
+		int size = tile->getHeight()*tile->getWidth();
+		float * input = tile->getBuffer();
+		char* valuebuffer = new char[size];
+		for (int i = 0 ; i < size ; i ++) {
+			float in = input[i* COM_NUMBER_OF_CHANNELS];
+			if (in < 0.0f) { in = 0.0f;}
+			if (in > 1.0f) {in = 1.0f;}
+			valuebuffer[i] = in * 255;
+		}
+		antialias_tagbuf(tile->getWidth(), tile->getHeight(), valuebuffer);
+		this->buffer = valuebuffer;
+	}
+	BLI_mutex_unlock(getMutex());
+	return this->buffer;
+}