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* Copyright 2011, Blender Foundation.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#include "COM_MapValueOperation.h"
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MapValueOperation::MapValueOperation() : NodeOperation()
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this->addInputSocket(COM_DT_VALUE);
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this->addOutputSocket(COM_DT_VALUE);
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this->m_inputOperation = NULL;
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void MapValueOperation::initExecution()
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this->m_inputOperation = this->getInputSocketReader(0);
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void MapValueOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
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this->m_inputOperation->read(src, x, y, sampler);
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TexMapping *texmap = this->m_settings;
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float value = (src[0] + texmap->loc[0]) * texmap->size[0];
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if (texmap->flag & TEXMAP_CLIP_MIN)
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if (value < texmap->min[0])
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value = texmap->min[0];
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if (texmap->flag & TEXMAP_CLIP_MAX)
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if (value > texmap->max[0])
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value = texmap->max[0];
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void MapValueOperation::deinitExecution()
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this->m_inputOperation = NULL;