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

  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2014-02-19 11:24:23 UTC
  • mfrom: (14.2.23 sid)
  • Revision ID: package-import@ubuntu.com-20140219112423-rkmaz2m7ha06d4tk
Tags: 2.69-3ubuntu1
* Merge with Debian; remaining changes:
  - Configure without OpenImageIO on armhf, as it is not available on
    Ubuntu.

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source/blender/compositor/operations/COM_MixBurnOperation.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_MixBurnOperation.h"
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MixBurnOperation::MixBurnOperation() : MixBaseOperation()
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{
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        /* pass */
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}
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void MixBurnOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
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{
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        float inputColor1[4];
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        float inputColor2[4];
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        float inputValue[4];
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        float tmp;
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        this->m_inputValueOperation->read(inputValue, x, y, sampler);
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        this->m_inputColor1Operation->read(inputColor1, x, y, sampler);
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        this->m_inputColor2Operation->read(inputColor2, x, y, sampler);
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        float value = inputValue[0];
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        if (this->useValueAlphaMultiply()) {
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                value *= inputColor2[3];
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        }
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        float valuem = 1.0f - value;
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        tmp = valuem + value * inputColor2[0];
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        if (tmp <= 0.0f)
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                output[0] = 0.0f;
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        else {
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                tmp = 1.0f - (1.0f - inputColor1[0]) / tmp;
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                if (tmp < 0.0f)
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                        output[0] = 0.0f;
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                else if (tmp > 1.0f)
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                        output[0] = 1.0f;
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                else
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                        output[0] = tmp;
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        }
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        tmp = valuem + value * inputColor2[1];
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        if (tmp <= 0.0f)
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                output[1] = 0.0f;
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        else {
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                tmp = 1.0f - (1.0f - inputColor1[1]) / tmp;
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                if (tmp < 0.0f)
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                        output[1] = 0.0f;
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                else if (tmp > 1.0f)
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                        output[1] = 1.0f;
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                else
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                        output[1] = tmp;
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        }
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        tmp = valuem + value * inputColor2[2];
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        if (tmp <= 0.0f)
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                output[2] = 0.0f;
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        else {
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                tmp = 1.0f - (1.0f - inputColor1[2]) / tmp;
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                if (tmp < 0.0f)
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                        output[2] = 0.0f;
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                else if (tmp > 1.0f)
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                        output[2] = 1.0f;
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                else
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                        output[2] = tmp;
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        }
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        output[3] = inputColor1[3];
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        clampIfNeeded(output);
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}
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