140 lines
4.1 KiB
C++
140 lines
4.1 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: Campbell Barton
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*/
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#include "MEM_guardedalloc.h"
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#include "COM_DespeckleOperation.h"
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#include "BLI_utildefines.h"
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DespeckleOperation::DespeckleOperation() : NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR);
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this->addInputSocket(COM_DT_VALUE);
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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->setComplex(true);
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}
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void DespeckleOperation::initExecution()
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{
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this->m_inputOperation = this->getInputSocketReader(0);
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this->m_inputValueOperation = this->getInputSocketReader(1);
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}
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void DespeckleOperation::deinitExecution()
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{
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this->m_inputOperation = NULL;
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this->m_inputValueOperation = NULL;
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}
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BLI_INLINE int color_diff(const float a[3], const float b[3], const float threshold)
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{
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return ((fabsf(a[0] - b[0]) > threshold) ||
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(fabsf(a[1] - b[1]) > threshold) ||
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(fabsf(a[2] - b[2]) > threshold));
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}
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void DespeckleOperation::executePixel(float output[4], int x, int y, void *data)
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{
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float w = 0.0f;
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float color_org[4];
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float color_mid[4];
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float color_mid_ok[4];
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float in1[4];
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int x1 = x - 1;
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int x2 = x;
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int x3 = x + 1;
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int y1 = y - 1;
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int y2 = y;
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int y3 = y + 1;
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CLAMP(x1, 0, getWidth() - 1);
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CLAMP(x2, 0, getWidth() - 1);
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CLAMP(x3, 0, getWidth() - 1);
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CLAMP(y1, 0, getHeight() - 1);
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CLAMP(y2, 0, getHeight() - 1);
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CLAMP(y3, 0, getHeight() - 1);
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float value[4];
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this->m_inputValueOperation->read(value, x2, y2, NULL);
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//const float mval = 1.0f - value[0];
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this->m_inputOperation->read(color_org, x2, y2, NULL);
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#define TOT_DIV_ONE 1.0f
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#define TOT_DIV_CNR (float)M_SQRT1_2
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#define WTOT (TOT_DIV_ONE * 4 + TOT_DIV_CNR * 4)
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#define COLOR_ADD(fac) \
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{ \
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madd_v4_v4fl(color_mid, in1, fac); \
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if (color_diff(in1, color_org, this->m_threshold)) { \
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w += fac; \
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madd_v4_v4fl(color_mid_ok, in1, fac); \
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} \
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}
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zero_v4(color_mid);
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zero_v4(color_mid_ok);
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this->m_inputOperation->read(in1, x1, y1, NULL); COLOR_ADD(TOT_DIV_CNR)
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this->m_inputOperation->read(in1, x2, y1, NULL); COLOR_ADD(TOT_DIV_ONE)
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this->m_inputOperation->read(in1, x3, y1, NULL); COLOR_ADD(TOT_DIV_CNR)
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this->m_inputOperation->read(in1, x1, y2, NULL); COLOR_ADD(TOT_DIV_ONE)
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#if 0
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this->m_inputOperation->read(in2, x2, y2, NULL);
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madd_v4_v4fl(color_mid, in2, this->m_filter[4]);
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#endif
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this->m_inputOperation->read(in1, x3, y2, NULL); COLOR_ADD(TOT_DIV_ONE)
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this->m_inputOperation->read(in1, x1, y3, NULL); COLOR_ADD(TOT_DIV_CNR)
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this->m_inputOperation->read(in1, x2, y3, NULL); COLOR_ADD(TOT_DIV_ONE)
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this->m_inputOperation->read(in1, x3, y3, NULL); COLOR_ADD(TOT_DIV_CNR)
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mul_v4_fl(color_mid, 1.0f / (4.0f + (4.0f * (float)M_SQRT1_2)));
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//mul_v4_fl(color_mid, 1.0f / w);
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if ((w != 0.0f) &&
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((w / WTOT) > (this->m_threshold_neighbor)) &&
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color_diff(color_mid, color_org, this->m_threshold))
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{
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mul_v4_fl(color_mid_ok, 1.0f / w);
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interp_v4_v4v4(output, color_org, color_mid_ok, value[0]);
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}
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else {
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copy_v4_v4(output, color_org);
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}
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}
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bool DespeckleOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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rcti newInput;
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int addx = 2; //(this->m_filterWidth - 1) / 2 + 1;
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int addy = 2; //(this->m_filterHeight - 1) / 2 + 1;
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newInput.xmax = input->xmax + addx;
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newInput.xmin = input->xmin - addx;
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newInput.ymax = input->ymax + addy;
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newInput.ymin = input->ymin - addy;
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return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
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}
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