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Viewing changes to source/blender/compositor/operations/COM_PreviewOperation.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_PreviewOperation.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_PreviewOperation.h"
 
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#include "COM_SocketConnection.h"
 
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#include "BLI_listbase.h"
 
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#include "BKE_image.h"
 
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#include "WM_api.h"
 
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#include "WM_types.h"
 
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#include "PIL_time.h"
 
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#include "BLI_utildefines.h"
 
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#include "BLI_math_color.h"
 
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#include "COM_defines.h"
 
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#include "BLI_math.h"
 
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extern "C" {
 
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        #include "MEM_guardedalloc.h"
 
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        #include "IMB_imbuf.h"
 
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        #include "IMB_imbuf_types.h"
 
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        #include "IMB_colormanagement.h"
 
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}
 
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PreviewOperation::PreviewOperation(const ColorManagedViewSettings *viewSettings, const ColorManagedDisplaySettings *displaySettings) : NodeOperation()
 
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{
 
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        this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE);
 
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        this->m_outputBuffer = NULL;
 
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        this->m_input = NULL;
 
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        this->m_divider = 1.0f;
 
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        this->m_node = NULL;
 
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        this->m_viewSettings = viewSettings;
 
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        this->m_displaySettings = displaySettings;
 
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}
 
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void PreviewOperation::initExecution()
 
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{
 
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        this->m_input = getInputSocketReader(0);
 
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        if (!this->m_node->preview) {
 
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                this->m_node->preview = (bNodePreview *)MEM_callocN(sizeof(bNodePreview), "node preview");
 
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        }
 
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        else {
 
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                if (this->getWidth() == (unsigned int)this->m_node->preview->xsize &&
 
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                    this->getHeight() == (unsigned int)this->m_node->preview->ysize)
 
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                {
 
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                        this->m_outputBuffer = this->m_node->preview->rect;
 
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                }
 
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        }
 
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        if (this->m_outputBuffer == NULL) {
 
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                this->m_outputBuffer = (unsigned char *)MEM_callocN(sizeof(unsigned char) * 4 * getWidth() * getHeight(), "PreviewOperation");
 
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                if (this->m_node->preview->rect) {
 
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                        MEM_freeN(this->m_node->preview->rect);
 
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                }
 
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                this->m_node->preview->xsize = getWidth();
 
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                this->m_node->preview->ysize = getHeight();
 
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                this->m_node->preview->rect = this->m_outputBuffer;
 
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        }
 
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}
 
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void PreviewOperation::deinitExecution()
 
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{
 
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        this->m_outputBuffer = NULL;
 
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        this->m_input = NULL;
 
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}
 
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void PreviewOperation::executeRegion(rcti *rect, unsigned int tileNumber)
 
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{
 
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        int offset;
 
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        float color[4];
 
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        struct ColormanageProcessor *cm_processor;
 
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        cm_processor = IMB_colormanagement_display_processor_new(this->m_viewSettings, this->m_displaySettings);
 
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        for (int y = rect->ymin; y < rect->ymax; y++) {
 
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                offset = (y * getWidth() + rect->xmin) * 4;
 
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                for (int x = rect->xmin; x < rect->xmax; x++) {
 
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                        float rx = floor(x / this->m_divider);
 
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                        float ry = floor(y / this->m_divider);
 
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                        color[0] = 0.0f;
 
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                        color[1] = 0.0f;
 
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                        color[2] = 0.0f;
 
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                        color[3] = 1.0f;
 
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                        this->m_input->read(color, rx, ry, COM_PS_NEAREST);
 
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                        IMB_colormanagement_processor_apply_v4(cm_processor, color);
 
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                        F4TOCHAR4(color, this->m_outputBuffer + offset);
 
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                        offset += 4;
 
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                }
 
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        }
 
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        IMB_colormanagement_processor_free(cm_processor);
 
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}
 
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bool PreviewOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
 
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{
 
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        rcti newInput;
 
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        newInput.xmin = input->xmin / this->m_divider;
 
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        newInput.xmax = input->xmax / this->m_divider;
 
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        newInput.ymin = input->ymin / this->m_divider;
 
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        newInput.ymax = input->ymax / this->m_divider;
 
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        return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
 
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}
 
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void PreviewOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
 
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{
 
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        NodeOperation::determineResolution(resolution, preferredResolution);
 
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        int width = resolution[0];
 
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        int height = resolution[1];
 
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        this->m_divider = 0.0f;
 
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        if (width > height) {
 
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                this->m_divider = COM_PREVIEW_SIZE / (width - 1);
 
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        }
 
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        else {
 
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                this->m_divider = COM_PREVIEW_SIZE / (height - 1);
 
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        }
 
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        width = width * this->m_divider;
 
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        height = height * this->m_divider;
 
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        resolution[0] = width;
 
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        resolution[1] = height;
 
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}
 
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const CompositorPriority PreviewOperation::getRenderPriority() const
 
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{
 
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        return COM_PRIORITY_LOW;
 
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}