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Viewing changes to source/blender/compositor/operations/COM_BokehImageOperation.cpp

  • Committer: Package Import Robot
  • Author(s): Jeremy Bicha
  • Date: 2013-03-06 12:08:47 UTC
  • mfrom: (1.5.1) (14.1.8 experimental)
  • Revision ID: package-import@ubuntu.com-20130306120847-frjfaryb2zrotwcg
Tags: 2.66a-1ubuntu1
https://launchpad.net/bugs/1076930
https://launchpad.net/bugs/1089256
https://launchpad.net/bugs/1052743
https://launchpad.net/bugs/999024
* Resynchronize with Debian (LP: #1076930, #1089256, #1052743, #999024,
  #1122888, #1147084)
* debian/control:
  - Lower build-depends on libavcodec-dev since we're not
    doing the libav9 transition in Ubuntu yet

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source/blender/compositor/operations/COM_BokehImageOperation.cpp
 
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/*
 
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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
 
15
 * 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_BokehImageOperation.h"
 
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#include "BLI_math.h"
 
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BokehImageOperation::BokehImageOperation() : NodeOperation()
 
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{
 
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        this->addOutputSocket(COM_DT_COLOR);
 
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        this->m_deleteData = false;
 
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}
 
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void BokehImageOperation::initExecution()
 
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{
 
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        this->m_center[0] = getWidth() / 2;
 
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        this->m_center[1] = getHeight() / 2;
 
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        this->m_inverseRounding = 1.0f - this->m_data->rounding;
 
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        this->m_circularDistance = getWidth() / 2;
 
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        this->m_flapRad = (float)(M_PI * 2) / this->m_data->flaps;
 
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        this->m_flapRadAdd = (this->m_data->angle / 360.0f) * (float)(M_PI * 2.0);
 
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        while (this->m_flapRadAdd < 0.0f) {
 
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                this->m_flapRadAdd += (float)(M_PI * 2.0);
 
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        }
 
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        while (this->m_flapRadAdd > (float)M_PI) {
 
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                this->m_flapRadAdd -= (float)(M_PI * 2.0);
 
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        }
 
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}
 
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void BokehImageOperation::detemineStartPointOfFlap(float r[2], int flapNumber, float distance)
 
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{
 
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        r[0] = sinf(this->m_flapRad * flapNumber + this->m_flapRadAdd) * distance + this->m_center[0];
 
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        r[1] = cosf(this->m_flapRad * flapNumber + this->m_flapRadAdd) * distance + this->m_center[1];
 
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}
 
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float BokehImageOperation::isInsideBokeh(float distance, float x, float y)
 
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{
 
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        float insideBokeh = 0.0f;
 
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        const float deltaX = x - this->m_center[0];
 
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        const float deltaY = y - this->m_center[1];
 
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        float closestPoint[2];
 
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        float lineP1[2];
 
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        float lineP2[2];
 
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        float point[2];
 
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        point[0] = x;
 
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        point[1] = y;
 
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        const float distanceToCenter = len_v2v2(point, this->m_center);
 
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        const float bearing = (atan2f(deltaX, deltaY) + (float)(M_PI * 2.0));
 
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        int flapNumber = (int)((bearing - this->m_flapRadAdd) / this->m_flapRad);
 
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        detemineStartPointOfFlap(lineP1, flapNumber, distance);
 
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        detemineStartPointOfFlap(lineP2, flapNumber + 1, distance);
 
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        closest_to_line_v2(closestPoint, point, lineP1, lineP2);
 
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        const float distanceLineToCenter = len_v2v2(this->m_center, closestPoint);
 
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        const float distanceRoundingToCenter = this->m_inverseRounding * distanceLineToCenter + this->m_data->rounding * distance;
 
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        const float catadioptricDistanceToCenter = distanceRoundingToCenter * this->m_data->catadioptric;
 
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        if (distanceRoundingToCenter >= distanceToCenter && catadioptricDistanceToCenter <= distanceToCenter) {
 
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                if (distanceRoundingToCenter - distanceToCenter < 1.0f) {
 
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                        insideBokeh = (distanceRoundingToCenter - distanceToCenter);
 
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                }
 
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                else if (this->m_data->catadioptric != 0.0f && distanceToCenter - catadioptricDistanceToCenter < 1.0f) {
 
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                        insideBokeh = (distanceToCenter - catadioptricDistanceToCenter);
 
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                }
 
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                else {
 
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                        insideBokeh = 1.0f;
 
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                }
 
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        }
 
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        return insideBokeh;
 
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}
 
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void BokehImageOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
 
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{
 
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        float shift = this->m_data->lensshift;
 
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        float shift2 = shift / 2.0f;
 
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        float distance = this->m_circularDistance;
 
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        float insideBokehMax = isInsideBokeh(distance, x, y);
 
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        float insideBokehMed = isInsideBokeh(distance - fabsf(shift2 * distance), x, y);
 
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        float insideBokehMin = isInsideBokeh(distance - fabsf(shift * distance), x, y);
 
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        if (shift < 0) {
 
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                output[0] = insideBokehMax;
 
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                output[1] = insideBokehMed;
 
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                output[2] = insideBokehMin;
 
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        }
 
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        else {
 
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                output[0] = insideBokehMin;
 
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                output[1] = insideBokehMed;
 
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                output[2] = insideBokehMax;
 
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        }
 
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        output[3] = (insideBokehMax + insideBokehMed + insideBokehMin) / 3.0f;
 
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}
 
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void BokehImageOperation::deinitExecution()
 
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{
 
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        if (this->m_deleteData) {
 
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                if (this->m_data) {
 
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                        delete this->m_data;
 
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                        this->m_data = NULL;
 
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                }
 
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        }
 
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}
 
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void BokehImageOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
 
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{
 
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        resolution[0] = COM_BLUR_BOKEH_PIXELS;
 
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        resolution[1] = COM_BLUR_BOKEH_PIXELS;
 
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}