~siretart/ubuntu/utopic/blender/libav10

/*

 * Copyright 2011, Blender Foundation.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 *

 * Contributor: 

 *              Jeroen Bakker 

 *              Monique Dewanchand

 */

 

#include "COM_SplitViewerOperation.h"

#include "COM_SocketConnection.h"

#include "BLI_listbase.h"

#include "BKE_image.h"

#include "BLI_utildefines.h"

#include "BLI_math_color.h"

#include "BLI_math_vector.h"

 

extern "C" {

        #include "MEM_guardedalloc.h"

        #include "IMB_imbuf.h"

        #include "IMB_imbuf_types.h"

}

 

 

SplitViewerOperation::SplitViewerOperation() : ViewerBaseOperation()

{

        this->addInputSocket(COM_DT_COLOR);

        this->addInputSocket(COM_DT_COLOR);

        this->m_image1Input = NULL;

        this->m_image2Input = NULL;

}

 

void SplitViewerOperation::initExecution()

{

        // When initializing the tree during initial load the width and height can be zero.

        this->m_image1Input = getInputSocketReader(0);

        this->m_image2Input = getInputSocketReader(1);

        ViewerBaseOperation::initExecution();

}

 

void SplitViewerOperation::deinitExecution()

{

        this->m_image1Input = NULL;

        this->m_image2Input = NULL;

        ViewerBaseOperation::deinitExecution();

}

 

 

void SplitViewerOperation::executeRegion(rcti *rect, unsigned int tileNumber)

{

        float *buffer = this->m_outputBuffer;

        

        if (!buffer) return;

        int x1 = rect->xmin;

        int y1 = rect->ymin;

        int x2 = rect->xmax;

        int y2 = rect->ymax;

        int offset = (y1 * this->getWidth() + x1) * 4;

        int x;

        int y;

        int perc = this->m_xSplit ? this->m_splitPercentage * this->getWidth() / 100.0f : this->m_splitPercentage * this->getHeight() / 100.0f;

        for (y = y1; y < y2; y++) {

                for (x = x1; x < x2; x++) {

                        bool image1;

                        image1 = this->m_xSplit ? x > perc : y > perc;

                        if (image1) {

                                this->m_image1Input->read(&(buffer[offset]), x, y, COM_PS_NEAREST);

                        }

                        else {

                                this->m_image2Input->read(&(buffer[offset]), x, y, COM_PS_NEAREST);

                        }

 

                        offset += 4;

                }

                offset += (this->getWidth() - (x2 - x1)) * 4;

        }

        updateImage(rect);

}