source/blender/compositor/operations/COM_MaskOperation.cpp

   1 /*
   2  * Copyright 2012, Blender Foundation.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * 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,
  16  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  * Contributor:
  19  *              Jeroen Bakker
  20  *              Monique Dewanchand
  21  *              Sergey Sharybin
  22  */
  23
  24 #include "COM_MaskOperation.h"
  25
  26 #include "MEM_guardedalloc.h"
  27
  28 #include "BLI_listbase.h"
  29 #include "BLI_math.h"
  30
  31 #include "DNA_scene_types.h"
  32
  33 extern "C" {
  34         #include "BKE_mask.h"
  35         #include "../../../../intern/raskter/raskter.h"
  36 }
  37
  38 MaskOperation::MaskOperation() : NodeOperation()
  39 {
  40         this->addOutputSocket(COM_DT_VALUE);
  41         this->mask = NULL;
  42         this->maskWidth = 0;
  43         this->maskHeight = 0;
  44         this->framenumber = 0;
  45         this->rasterizedMask = NULL;
  46         setComplex(true);
  47 }
  48
  49 void MaskOperation::initExecution()
  50 {
  51         initMutex();
  52         this->rasterizedMask = NULL;
  53 }
  54
  55 void MaskOperation::deinitExecution()
  56 {
  57         if (this->rasterizedMask) {
  58                 MEM_freeN(rasterizedMask);
  59                 this->rasterizedMask = NULL;
  60         }
  61 }
  62
  63 void *MaskOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers)
  64 {
  65         if (this->rasterizedMask)
  66                 return this->rasterizedMask;
  67
  68         if (!this->mask)
  69                 return NULL;
  70
  71         lockMutex();
  72         if (this->rasterizedMask == NULL) {
  73                 int width = this->getWidth();
  74                 int height = this->getHeight();
  75                 float *buffer;
  76
  77                 buffer = (float *)MEM_callocN(sizeof(float) * width * height, "rasterized mask");
  78                 BKE_mask_rasterize(mask, width, height, buffer, TRUE, this->do_smooth, this->do_feather);
  79                 if (this->do_smooth) {
  80                         PLX_antialias_buffer(buffer, width, height);
  81                 }
  82
  83                 this->rasterizedMask = buffer;
  84         }
  85         unlockMutex();
  86         return this->rasterizedMask;
  87 }
  88
  89 void MaskOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[])
  90 {
  91         if (maskWidth == 0 || maskHeight == 0) {
  92                 NodeOperation::determineResolution(resolution, preferredResolution);
  93         }
  94         else {
  95                 unsigned int nr[2];
  96
  97                 nr[0] = maskWidth;
  98                 nr[1] = maskHeight;
  99
 100                 NodeOperation::determineResolution(resolution, nr);
 101
 102                 resolution[0] = maskWidth;
 103                 resolution[1] = maskHeight;
 104         }
 105 }
 106
 107 void MaskOperation::executePixel(float *color, int x, int y, MemoryBuffer *inputBuffers[], void *data)
 108 {
 109         if (!data) {
 110                 color[0] = 0.0f;
 111         }
 112         else {
 113                 float *buffer = (float *) data;
 114                 int index = (y * this->getWidth() + x);
 115
 116                 color[0] = buffer[index];
 117         }
 118 }