47 lines
1.5 KiB
C++
47 lines
1.5 KiB
C++
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|
||
|
|
}
|