129 lines
3.8 KiB
C++
129 lines
3.8 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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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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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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*/
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#include "COM_CropOperation.h"
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#include "BLI_math.h"
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CropBaseOperation::CropBaseOperation() : NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE);
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this->addOutputSocket(COM_DT_COLOR);
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this->m_inputOperation = NULL;
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this->m_settings = NULL;
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}
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void CropBaseOperation::updateArea()
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{
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SocketReader *inputReference = this->getInputSocketReader(0);
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float width = inputReference->getWidth();
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float height = inputReference->getHeight();
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if (width > 0.0f && height > 0.0f) {
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if (this->m_relative) {
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this->m_settings->x1 = width * this->m_settings->fac_x1;
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this->m_settings->x2 = width * this->m_settings->fac_x2;
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this->m_settings->y1 = height * this->m_settings->fac_y1;
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this->m_settings->y2 = height * this->m_settings->fac_y2;
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}
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if (width <= this->m_settings->x1 + 1)
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this->m_settings->x1 = width - 1;
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if (height <= this->m_settings->y1 + 1)
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this->m_settings->y1 = height - 1;
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if (width <= this->m_settings->x2 + 1)
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this->m_settings->x2 = width - 1;
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if (height <= this->m_settings->y2 + 1)
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this->m_settings->y2 = height - 1;
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this->m_xmax = max(this->m_settings->x1, this->m_settings->x2) + 1;
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this->m_xmin = min(this->m_settings->x1, this->m_settings->x2);
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this->m_ymax = max(this->m_settings->y1, this->m_settings->y2) + 1;
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this->m_ymin = min(this->m_settings->y1, this->m_settings->y2);
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}
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else {
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this->m_xmax = 0;
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this->m_xmin = 0;
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this->m_ymax = 0;
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this->m_ymin = 0;
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}
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}
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void CropBaseOperation::initExecution()
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{
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this->m_inputOperation = this->getInputSocketReader(0);
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updateArea();
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}
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void CropBaseOperation::deinitExecution()
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{
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this->m_inputOperation = NULL;
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}
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CropOperation::CropOperation() : CropBaseOperation()
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{
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/* pass */
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}
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void CropOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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if ((x < this->m_xmax && x >= this->m_xmin) && (y < this->m_ymax && y >= this->m_ymin)) {
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this->m_inputOperation->readSampled(output, x, y, sampler);
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}
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else {
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zero_v4(output);
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}
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}
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CropImageOperation::CropImageOperation() : CropBaseOperation()
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{
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/* pass */
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}
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bool CropImageOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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rcti newInput;
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newInput.xmax = input->xmax + this->m_xmin;
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newInput.xmin = input->xmin + this->m_xmin;
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newInput.ymax = input->ymax + this->m_ymin;
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newInput.ymin = input->ymin + this->m_ymin;
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return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
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}
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void CropImageOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
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{
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NodeOperation::determineResolution(resolution, preferredResolution);
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updateArea();
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resolution[0] = this->m_xmax - this->m_xmin;
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resolution[1] = this->m_ymax - this->m_ymin;
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}
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void CropImageOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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if (x >= 0 && x < getWidth() && y >= 0 && y < getHeight()) {
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this->m_inputOperation->readSampled(output, (x + this->m_xmin), (y + this->m_ymin), sampler);
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}
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else {
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zero_v4(output);
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}
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}
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