71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
/*
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* Copyright 2013, 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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* Sergey Sharybin
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*/
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#include "COM_PlaneTrackMaskOperation.h"
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#include "MEM_guardedalloc.h"
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#include "BLI_listbase.h"
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#include "BLI_math.h"
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#include "BLI_math_color.h"
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extern "C" {
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#include "BLI_jitter.h"
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#include "BKE_movieclip.h"
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#include "BKE_node.h"
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#include "BKE_tracking.h"
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}
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PlaneTrackMaskOperation::PlaneTrackMaskOperation() : PlaneTrackCommonOperation()
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{
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this->addOutputSocket(COM_DT_VALUE);
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/* Currently hardcoded to 8 samples. */
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this->m_osa = 8;
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}
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void PlaneTrackMaskOperation::initExecution()
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{
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PlaneTrackCommonOperation::initExecution();
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BLI_jitter_init(this->m_jitter[0], this->m_osa);
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}
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void PlaneTrackMaskOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
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{
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float point[2];
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int inside_counter = 0;
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for (int sample = 0; sample < this->m_osa; sample++) {
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point[0] = x + this->m_jitter[sample][0];
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point[1] = y + this->m_jitter[sample][1];
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if (isect_point_tri_v2(point, this->m_frameSpaceCorners[0], this->m_frameSpaceCorners[1], this->m_frameSpaceCorners[2]) ||
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isect_point_tri_v2(point, this->m_frameSpaceCorners[0], this->m_frameSpaceCorners[2], this->m_frameSpaceCorners[3]))
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{
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inside_counter++;
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}
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}
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output[0] = (float) inside_counter / this->m_osa;
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}
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