diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp')
-rw-r--r-- | source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp b/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp new file mode 100644 index 00000000000..86f9dbf5c40 --- /dev/null +++ b/source/blender/compositor/operations/COM_GaussianYBlurOperation.cpp @@ -0,0 +1,125 @@ +/* + * 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_GaussianYBlurOperation.h" +#include "BLI_math.h" + +extern "C" { + #include "RE_pipeline.h" +} + +GaussianYBlurOperation::GaussianYBlurOperation(): BlurBaseOperation() { + this->gausstab = NULL; + this->rad = 0; +} + +void* GaussianYBlurOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) { + updateGauss(memoryBuffers); + void* buffer = getInputOperation(0)->initializeTileData(NULL, memoryBuffers); + return buffer; +} + +void GaussianYBlurOperation::updateGauss(MemoryBuffer **memoryBuffers) { + if (this->gausstab == NULL) { + updateSize(memoryBuffers); + float rad = size*this->data->sizey; + if(rad<1) + rad= 1; + + this->rad = rad; + this->gausstab = BlurBaseOperation::make_gausstab(rad); + } +} + +void GaussianYBlurOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void *data) { + + float tempColor[4]; + tempColor[0] = 0; + tempColor[1] = 0; + tempColor[2] = 0; + tempColor[3] = 0; + float overallmultiplyer = 0; + MemoryBuffer* inputBuffer = (MemoryBuffer*)data; + float* buffer = inputBuffer->getBuffer(); + int bufferwidth = inputBuffer->getWidth(); + int bufferstartx = inputBuffer->getRect()->xmin; + int bufferstarty = inputBuffer->getRect()->ymin; + + int miny = y - this->rad; + int maxy = y + this->rad; + int minx = x; + int maxx = x; + miny = max(miny, inputBuffer->getRect()->ymin); + minx = max(minx, inputBuffer->getRect()->xmin); + maxy = min(maxy, inputBuffer->getRect()->ymax); + maxx = min(maxx, inputBuffer->getRect()->xmax); + + int step = getStep(); + int index = 0; + for (int ny = miny ; ny < maxy ; ny +=step) { + int bufferindex = ((minx - bufferstartx)*4)+((ny-bufferstarty)*4*bufferwidth); + float multiplyer = gausstab[index++]; + tempColor[0] += multiplyer * buffer[bufferindex]; + tempColor[1] += multiplyer * buffer[bufferindex+1]; + tempColor[2] += multiplyer * buffer[bufferindex+2]; + tempColor[3] += multiplyer * buffer[bufferindex+3]; + overallmultiplyer += multiplyer; + } + float divider = 1.0/overallmultiplyer; + color[0] = tempColor[0]*divider; + color[1] = tempColor[1]*divider; + color[2] = tempColor[2]*divider; + color[3] = tempColor[3]*divider; +} + +void GaussianYBlurOperation::deinitExecution() { + BlurBaseOperation::deinitExecution(); + delete this->gausstab; + this->gausstab = NULL; +} + +bool GaussianYBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) { + rcti newInput; + rcti sizeInput; + sizeInput.xmin = 0; + sizeInput.ymin = 0; + sizeInput.xmax = 5; + sizeInput.ymax = 5; + + NodeOperation * operation = this->getInputOperation(1); + if (operation->determineDependingAreaOfInterest(&sizeInput, readOperation, output)) { + return true; + }else { + if (this->gausstab == NULL) { + newInput.xmax = this->getWidth(); + newInput.xmin = 0; + newInput.ymax = this->getHeight(); + newInput.ymin = 0; + } else { + newInput.xmax = input->xmax; + newInput.xmin = input->xmin; + newInput.ymax = input->ymax + rad; + newInput.ymin = input->ymin - rad; + } + return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output); + } +} |