1 files changed, 81 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_MapRangeOperation.cpp b/source/blender/compositor/operations/COM_MapRangeOperation.cpp
new file mode 100644
index 00000000000..3facaaebc9c
--- /dev/null
+++ b/source/blender/compositor/operations/COM_MapRangeOperation.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2012, 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: 
+ *		Dalai Felinto
+ *		Daniel Salazar
+ */
+
+#include "COM_MapRangeOperation.h"
+
+MapRangeOperation::MapRangeOperation() : NodeOperation()
+{
+	this->addInputSocket(COM_DT_VALUE);
+	this->addInputSocket(COM_DT_VALUE);
+	this->addInputSocket(COM_DT_VALUE);
+	this->addInputSocket(COM_DT_VALUE);
+	this->addInputSocket(COM_DT_VALUE);
+	this->addOutputSocket(COM_DT_VALUE);
+	this->m_inputOperation = NULL;
+	this->m_useClamp = FALSE;
+}
+
+void MapRangeOperation::initExecution()
+{
+	this->m_inputOperation = this->getInputSocketReader(0);
+	this->m_sourceMinOperation = this->getInputSocketReader(1);
+	this->m_sourceMaxOperation = this->getInputSocketReader(2);
+	this->m_destMinOperation = this->getInputSocketReader(3);
+	this->m_destMaxOperation = this->getInputSocketReader(4);
+}
+
+void MapRangeOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
+{
+	float inputs[8]; /* includes the 5 inputs + 3 pads */
+	float value;
+	float source_min, source_max;
+	float dest_min, dest_max;
+
+	this->m_inputOperation->read(inputs, x, y, sampler);
+	this->m_sourceMinOperation->read(inputs+1, x, y, sampler);
+	this->m_sourceMaxOperation->read(inputs+2, x, y, sampler);
+	this->m_destMinOperation->read(inputs+3, x, y, sampler);
+	this->m_destMaxOperation->read(inputs+4, x, y, sampler);
+	
+	value = inputs[0];
+	source_min = inputs[1];
+	source_max = inputs[2];
+	dest_min = inputs[3];
+	dest_max = inputs[4];
+	
+	value = (value - source_min) / (source_max - source_min);
+	value = dest_min + value * (dest_max - dest_min);
+
+	if (this->m_useClamp)
+		CLAMP(value, dest_min, dest_max);
+
+	output[0] = value;
+}
+
+void MapRangeOperation::deinitExecution()
+{
+	this->m_inputOperation = NULL;
+	this->m_sourceMinOperation = NULL;
+	this->m_sourceMaxOperation = NULL;
+	this->m_destMinOperation = NULL;
+	this->m_destMaxOperation = NULL;
+}