diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_RenderLayersAlphaProg.cpp')
-rw-r--r-- | source/blender/compositor/operations/COM_RenderLayersAlphaProg.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_RenderLayersAlphaProg.cpp b/source/blender/compositor/operations/COM_RenderLayersAlphaProg.cpp new file mode 100644 index 00000000000..d85d54489ac --- /dev/null +++ b/source/blender/compositor/operations/COM_RenderLayersAlphaProg.cpp @@ -0,0 +1,46 @@ +/* + * 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_RenderLayersAlphaProg.h" + +RenderLayersAlphaProg::RenderLayersAlphaProg() :RenderLayersBaseProg(SCE_PASS_COMBINED, 4) { + this->addOutputSocket(COM_DT_VALUE); +} + +void RenderLayersAlphaProg::executePixel(float* output, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) { + int ix = x; + int iy = y; + float * inputBuffer = this->getInputBuffer(); + + if (inputBuffer == NULL || ix < 0 || iy < 0 || ix >= (int)this->getWidth() || iy >= (int)this->getHeight() ) { + output[0] = 0.0f; + output[1] = 0.0f; + output[2] = 0.0f; + output[3] = 0.0f; + } else { + unsigned int offset = (iy*this->getWidth()+ix) * 4; + output[0] = inputBuffer[offset+3]; + output[1] = 0.0f; + output[2] = 0.0f; + output[3] = 0.0f; + } +} |