diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_MixSubtractOperation.cpp')
-rw-r--r-- | source/blender/compositor/operations/COM_MixSubtractOperation.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_MixSubtractOperation.cpp b/source/blender/compositor/operations/COM_MixSubtractOperation.cpp new file mode 100644 index 00000000000..49792c99c27 --- /dev/null +++ b/source/blender/compositor/operations/COM_MixSubtractOperation.cpp @@ -0,0 +1,45 @@ +/* + * 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_MixSubtractOperation.h" + +MixSubtractOperation::MixSubtractOperation(): MixBaseOperation() { +} + +void MixSubtractOperation::executePixel(float* outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) { + float inputColor1[4]; + float inputColor2[4]; + float value; + + inputValueOperation->read(&value, x, y, sampler, inputBuffers); + inputColor1Operation->read(&inputColor1[0], x, y, sampler, inputBuffers); + inputColor2Operation->read(&inputColor2[0], x, y, sampler, inputBuffers); + + if (this->useValueAlphaMultiply()) { + value *= inputColor2[3]; + } + outputValue[0] = inputColor1[0]-value*(inputColor2[0]); + outputValue[1] = inputColor1[1]-value*(inputColor2[1]); + outputValue[2] = inputColor1[2]-value*(inputColor2[2]); + outputValue[3] = inputColor1[3]; +} + |