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Viewing changes to source/blender/compositor/operations/COM_ProjectorLensDistortionOperation.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_ProjectorLensDistortionOperation.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
 
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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_ProjectorLensDistortionOperation.h"
 
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#include "BLI_math.h"
 
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#include "BLI_utildefines.h"
 
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ProjectorLensDistortionOperation::ProjectorLensDistortionOperation() : 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->setComplex(true);
 
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        this->m_inputProgram = NULL;
 
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        this->m_dispersionAvailable = false;
 
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        this->m_dispersion = 0.0f;
 
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}
 
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void ProjectorLensDistortionOperation::initExecution()
 
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{
 
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        this->initMutex();
 
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        this->m_inputProgram = this->getInputSocketReader(0);
 
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}
 
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void *ProjectorLensDistortionOperation::initializeTileData(rcti *rect)
 
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{
 
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        updateDispersion();
 
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        void *buffer = this->m_inputProgram->initializeTileData(NULL);
 
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        return buffer;
 
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}
 
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void ProjectorLensDistortionOperation::executePixel(float output[4], int x, int y, void *data)
 
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{
 
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        float inputValue[4];
 
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        const float height = this->getHeight();
 
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        const float width = this->getWidth();
 
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        const float v = (y + 0.5f) / height;
 
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        const float u = (x + 0.5f) / width;
 
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        MemoryBuffer *inputBuffer = (MemoryBuffer *)data;
 
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        inputBuffer->readCubic(inputValue, (u * width + this->m_kr2) - 0.5f, v * height - 0.5f);
 
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        output[0] = inputValue[0];
 
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        inputBuffer->read(inputValue, x, y);
 
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        output[1] = inputValue[1];
 
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        inputBuffer->readCubic(inputValue, (u * width - this->m_kr2) - 0.5f, v * height - 0.5f);
 
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        output[2] = inputValue[2];
 
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        output[3] = 1.0f;
 
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}
 
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void ProjectorLensDistortionOperation::deinitExecution()
 
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{
 
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        this->deinitMutex();
 
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        this->m_inputProgram = NULL;
 
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}
 
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bool ProjectorLensDistortionOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
 
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{
 
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        rcti newInput;
 
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        if (this->m_dispersionAvailable) {
 
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                newInput.ymax = input->ymax;
 
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                newInput.ymin = input->ymin;
 
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                newInput.xmin = input->xmin - this->m_kr2 - 2;
 
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                newInput.xmax = input->xmax + this->m_kr2 + 2;
 
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        }
 
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        else {
 
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                rcti dispInput;
 
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                BLI_rcti_init(&dispInput, 0, 5, 0, 5);
 
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                if (this->getInputOperation(1)->determineDependingAreaOfInterest(&dispInput, readOperation, output)) {
 
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                        return true;
 
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                }
 
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                newInput.xmin = input->xmin - 7;  /* (0.25f * 20 * 1) + 2 == worse case dispersion */
 
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                newInput.ymin = input->ymin;
 
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                newInput.ymax = input->ymax;
 
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                newInput.xmax = input->xmax + 7;  /* (0.25f * 20 * 1) + 2 == worse case dispersion */
 
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        }
 
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        if (this->getInputOperation(0)->determineDependingAreaOfInterest(&newInput, readOperation, output)) {
 
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                return true;
 
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        }
 
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        return false;
 
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}
 
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void ProjectorLensDistortionOperation::updateDispersion() 
 
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{
 
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        if (this->m_dispersionAvailable) return;
 
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        this->lockMutex();
 
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        if (!this->m_dispersionAvailable) {
 
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                float result[4];
 
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                this->getInputSocketReader(1)->read(result, 1, 1, COM_PS_NEAREST);
 
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                this->m_dispersion = result[0];
 
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                this->m_kr = 0.25f * max_ff(min_ff(this->m_dispersion, 1.0f), 0.0f);
 
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                this->m_kr2 = this->m_kr * 20;
 
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                this->m_dispersionAvailable = true;
 
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        }
 
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        this->unlockMutex();
 
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}