74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/*
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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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*
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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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*
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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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*
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* Copyright 2011, Blender Foundation.
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*/
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#include "COM_FlipOperation.h"
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FlipOperation::FlipOperation() : NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR);
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this->addOutputSocket(COM_DT_COLOR);
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this->setResolutionInputSocketIndex(0);
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this->m_inputOperation = NULL;
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this->m_flipX = true;
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this->m_flipY = false;
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}
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void FlipOperation::initExecution()
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{
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this->m_inputOperation = this->getInputSocketReader(0);
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}
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void FlipOperation::deinitExecution()
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{
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this->m_inputOperation = NULL;
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}
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void FlipOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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float nx = this->m_flipX ? ((int)this->getWidth() - 1) - x : x;
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float ny = this->m_flipY ? ((int)this->getHeight() - 1) - y : y;
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this->m_inputOperation->readSampled(output, nx, ny, sampler);
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}
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bool FlipOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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rcti newInput;
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if (this->m_flipX) {
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const int w = (int)this->getWidth() - 1;
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newInput.xmax = (w - input->xmin) + 1;
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newInput.xmin = (w - input->xmax) - 1;
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}
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else {
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newInput.xmin = input->xmin;
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newInput.xmax = input->xmax;
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}
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if (this->m_flipY) {
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const int h = (int)this->getHeight() - 1;
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newInput.ymax = (h - input->ymin) + 1;
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newInput.ymin = (h - input->ymax) - 1;
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}
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else {
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newInput.ymin = input->ymin;
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newInput.ymax = input->ymax;
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}
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return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
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}
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