diff options
author | Jeroen Bakker <jeroen@blender.org> | 2021-03-08 15:41:52 +0300 |
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committer | Jeroen Bakker <jeroen@blender.org> | 2021-03-08 15:41:52 +0300 |
commit | 1775ea74c152ba7cf27a8bc1f071b40992c89013 (patch) | |
tree | 310fbe4e107734a16b3164adb1a65bd918935855 /source/blender/compositor/operations/COM_NormalizeOperation.cc | |
parent | b9cd2f4531ca670c196b0b14b1359d0f375103c2 (diff) |
Cleanup: Change extension .cpp to .cc
Diffstat (limited to 'source/blender/compositor/operations/COM_NormalizeOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_NormalizeOperation.cc | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_NormalizeOperation.cc b/source/blender/compositor/operations/COM_NormalizeOperation.cc new file mode 100644 index 00000000000..a8448685332 --- /dev/null +++ b/source/blender/compositor/operations/COM_NormalizeOperation.cc @@ -0,0 +1,126 @@ +/* + * 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. + * + * Copyright 2012, Blender Foundation. + */ + +#include "COM_NormalizeOperation.h" + +NormalizeOperation::NormalizeOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->m_imageReader = nullptr; + this->m_cachedInstance = nullptr; + this->setComplex(true); +} +void NormalizeOperation::initExecution() +{ + this->m_imageReader = this->getInputSocketReader(0); + NodeOperation::initMutex(); +} + +void NormalizeOperation::executePixel(float output[4], int x, int y, void *data) +{ + /* using generic two floats struct to store x: min y: mult */ + NodeTwoFloats *minmult = (NodeTwoFloats *)data; + + this->m_imageReader->read(output, x, y, nullptr); + + output[0] = (output[0] - minmult->x) * minmult->y; + + /* clamp infinities */ + if (output[0] > 1.0f) { + output[0] = 1.0f; + } + else if (output[0] < 0.0f) { + output[0] = 0.0f; + } +} + +void NormalizeOperation::deinitExecution() +{ + this->m_imageReader = nullptr; + delete this->m_cachedInstance; + NodeOperation::deinitMutex(); +} + +bool NormalizeOperation::determineDependingAreaOfInterest(rcti * /*input*/, + ReadBufferOperation *readOperation, + rcti *output) +{ + rcti imageInput; + if (this->m_cachedInstance) { + return false; + } + + NodeOperation *operation = getInputOperation(0); + imageInput.xmax = operation->getWidth(); + imageInput.xmin = 0; + imageInput.ymax = operation->getHeight(); + imageInput.ymin = 0; + + if (operation->determineDependingAreaOfInterest(&imageInput, readOperation, output)) { + return true; + } + return false; +} + +/* The code below assumes all data is inside range +- this, and that input buffer is single channel + */ +#define BLENDER_ZMAX 10000.0f + +void *NormalizeOperation::initializeTileData(rcti *rect) +{ + lockMutex(); + if (this->m_cachedInstance == nullptr) { + MemoryBuffer *tile = (MemoryBuffer *)this->m_imageReader->initializeTileData(rect); + /* using generic two floats struct to store x: min y: mult */ + NodeTwoFloats *minmult = new NodeTwoFloats(); + + float *buffer = tile->getBuffer(); + int p = tile->getWidth() * tile->getHeight(); + float *bc = buffer; + + float minv = 1.0f + BLENDER_ZMAX; + float maxv = -1.0f - BLENDER_ZMAX; + + float value; + while (p--) { + value = bc[0]; + if ((value > maxv) && (value <= BLENDER_ZMAX)) { + maxv = value; + } + if ((value < minv) && (value >= -BLENDER_ZMAX)) { + minv = value; + } + bc++; + } + + minmult->x = minv; + /* The rare case of flat buffer would cause a divide by 0 */ + minmult->y = ((maxv != minv) ? 1.0f / (maxv - minv) : 0.0f); + + this->m_cachedInstance = minmult; + } + + unlockMutex(); + return this->m_cachedInstance; +} + +void NormalizeOperation::deinitializeTileData(rcti * /*rect*/, void * /*data*/) +{ + /* pass */ +} |