diff options
Diffstat (limited to 'source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp')
-rw-r--r-- | source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp b/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp new file mode 100644 index 00000000000..ce3fd82acf0 --- /dev/null +++ b/source/blender/compositor/operations/COM_GlareSimpleStarOperation.cpp @@ -0,0 +1,113 @@ +/* + * 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_GlareSimpleStarOperation.h" + +void GlareSimpleStarOperation::generateGlare(float *data, MemoryBuffer *inputTile, NodeGlare *settings) { + int i, x, y, ym, yp, xm, xp; + float c[4] = {0,0,0,0}, tc[4] = {0,0,0,0}; + const float f1 = 1.f - settings->fade, f2 = (1.f - f1)*0.5f; + + + MemoryBuffer* tbuf1 = inputTile->duplicate(); + MemoryBuffer* tbuf2 = inputTile->duplicate(); + + for (i=0; i<settings->iter; i++) { +// // (x || x-1, y-1) to (x || x+1, y+1) +// // F + for (y=0; y<this->getHeight(); y++) { + ym = y - i; + yp = y + i; + for (x=0; x<this->getWidth(); x++) { + xm = x - i; + xp = x + i; + tbuf1->read(c, x, y); + c[0]*=f1; c[1]*=f1 ; c[2] *=f1; + tbuf1->read(tc, (settings->angle ? xm : x), ym); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + tbuf1->read(tc, (settings->angle ? xp : x), yp); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + c[3] = 1.0f; + tbuf1->writePixel(x, y, c); + + tbuf2->read(c, x, y); + c[0]*=f1; c[1]*=f1 ; c[2] *=f1; + tbuf2->read(tc, xm, (settings->angle ? yp : y)); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + tbuf2->read(tc, xp, (settings->angle ? ym : y)); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + c[3] = 1.0f; + tbuf2->writePixel(x, y, c); + + } + } +// // B + for (y=tbuf1->getHeight()-1; y>=0; y--) { + ym = y - i; + yp = y + i; + for (x=tbuf1->getWidth()-1; x>=0; x--) { + xm = x - i; + xp = x + i; + tbuf1->read(c, x, y); + c[0]*=f1; c[1]*=f1 ; c[2] *=f1; + tbuf1->read(tc, (settings->angle ? xm : x), ym); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + tbuf1->read(tc, (settings->angle ? xp : x), yp); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + c[3] = 1.0f; + tbuf1->writePixel(x, y, c); + + tbuf2->read(c, x, y); + c[0]*=f1; c[1]*=f1 ; c[2] *=f1; + tbuf2->read(tc, xm, (settings->angle ? yp : y)); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + tbuf2->read(tc, xp, (settings->angle ? ym : y)); + c[0]+=tc[0]*f2; + c[1]+=tc[1]*f2; + c[2]+=tc[2]*f2; + c[3] = 1.0f; + tbuf2->writePixel(x, y, c); + } + } + } + + for (i = 0 ; i < this->getWidth()*this->getHeight()*4 ; i++) { + data[i] = tbuf1->getBuffer()[i] + tbuf2->getBuffer()[i]; + } + + delete tbuf1; + delete tbuf2; +} |