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_MapRangeOperation.cc | |
parent | b9cd2f4531ca670c196b0b14b1359d0f375103c2 (diff) |
Cleanup: Change extension .cpp to .cc
Diffstat (limited to 'source/blender/compositor/operations/COM_MapRangeOperation.cc')
-rw-r--r-- | source/blender/compositor/operations/COM_MapRangeOperation.cc | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_MapRangeOperation.cc b/source/blender/compositor/operations/COM_MapRangeOperation.cc new file mode 100644 index 00000000000..95b3c27ac2f --- /dev/null +++ b/source/blender/compositor/operations/COM_MapRangeOperation.cc @@ -0,0 +1,103 @@ +/* + * 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_MapRangeOperation.h" + +MapRangeOperation::MapRangeOperation() +{ + this->addInputSocket(COM_DT_VALUE); + this->addInputSocket(COM_DT_VALUE); + this->addInputSocket(COM_DT_VALUE); + this->addInputSocket(COM_DT_VALUE); + this->addInputSocket(COM_DT_VALUE); + this->addOutputSocket(COM_DT_VALUE); + this->m_inputOperation = nullptr; + this->m_useClamp = false; +} + +void MapRangeOperation::initExecution() +{ + this->m_inputOperation = this->getInputSocketReader(0); + this->m_sourceMinOperation = this->getInputSocketReader(1); + this->m_sourceMaxOperation = this->getInputSocketReader(2); + this->m_destMinOperation = this->getInputSocketReader(3); + this->m_destMaxOperation = this->getInputSocketReader(4); +} + +/* The code below assumes all data is inside range +- this, and that input buffer is single channel + */ +#define BLENDER_ZMAX 10000.0f + +void MapRangeOperation::executePixelSampled(float output[4], + float x, + float y, + PixelSampler sampler) +{ + float inputs[8]; /* includes the 5 inputs + 3 pads */ + float value; + float source_min, source_max; + float dest_min, dest_max; + + this->m_inputOperation->readSampled(inputs, x, y, sampler); + this->m_sourceMinOperation->readSampled(inputs + 1, x, y, sampler); + this->m_sourceMaxOperation->readSampled(inputs + 2, x, y, sampler); + this->m_destMinOperation->readSampled(inputs + 3, x, y, sampler); + this->m_destMaxOperation->readSampled(inputs + 4, x, y, sampler); + + value = inputs[0]; + source_min = inputs[1]; + source_max = inputs[2]; + dest_min = inputs[3]; + dest_max = inputs[4]; + + if (fabsf(source_max - source_min) < 1e-6f) { + output[0] = 0.0f; + return; + } + + if (value >= -BLENDER_ZMAX && value <= BLENDER_ZMAX) { + value = (value - source_min) / (source_max - source_min); + value = dest_min + value * (dest_max - dest_min); + } + else if (value > BLENDER_ZMAX) { + value = dest_max; + } + else { + value = dest_min; + } + + if (this->m_useClamp) { + if (dest_max > dest_min) { + CLAMP(value, dest_min, dest_max); + } + else { + CLAMP(value, dest_max, dest_min); + } + } + + output[0] = value; +} + +void MapRangeOperation::deinitExecution() +{ + this->m_inputOperation = nullptr; + this->m_sourceMinOperation = nullptr; + this->m_sourceMaxOperation = nullptr; + this->m_destMinOperation = nullptr; + this->m_destMaxOperation = nullptr; +} |