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/**
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Bob Holcomb
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "../CMP_util.h"
/* ******************* Color Key ********************************************************** */
static bNodeSocketType cmp_node_color_in[]={
{SOCK_RGBA,1,"Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{SOCK_RGBA,1,"Key Color", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{-1,0,""}
};
static bNodeSocketType cmp_node_color_out[]={
{SOCK_RGBA,0,"Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
{SOCK_VALUE,0,"Matte",0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{-1,0,""}
};
static void do_color_key(bNode *node, float *out, float *in)
{
NodeChroma *c;
c=node->storage;
VECCOPY(out, in);
if(fabs(in[0]-c->key[0]) < c->t1 &&
fabs(in[1]-c->key[1]) < c->t2 &&
fabs(in[2]-c->key[2]) < c->t3)
{
out[3]=0.0; /*make transparent*/
}
else { /*pixel is outside key color */
out[3]=in[3]; /* make pixel just as transparent as it was before */
}
}
static void node_composit_exec_color_matte(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
CompBuf *cbuf;
CompBuf *colorbuf;
NodeChroma *c;
if(in[0]->hasinput==0) return;
if(in[0]->data==NULL) return;
if(out[0]->hasoutput==0 && out[1]->hasoutput==0) return;
cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
colorbuf= dupalloc_compbuf(cbuf);
c=node->storage;
/*convert rgbbuf to hsv*/
composit1_pixel_processor(node, colorbuf, cbuf, in[0]->vec, do_rgba_to_hsva, CB_RGBA);
/*convert key to hsv*/
do_rgba_to_hsva(node, c->key, in[1]->vec);
/*per pixel color key*/
composit1_pixel_processor(node, colorbuf, colorbuf, in[0]->vec, do_color_key, CB_RGBA);
/*convert back*/
composit1_pixel_processor(node, colorbuf, colorbuf, in[0]->vec, do_hsva_to_rgba, CB_RGBA);
out[0]->data= colorbuf;
if(out[1]->hasoutput)
out[1]->data= valbuf_from_rgbabuf(colorbuf, CHAN_A);
generate_preview(data, node, colorbuf);
if(cbuf!=in[0]->data)
free_compbuf(cbuf);
};
static void node_composit_init_color_matte(bNode *node)
{
NodeChroma *c= MEM_callocN(sizeof(NodeChroma), "node color");
node->storage= c;
c->t1= 0.01f;
c->t2= 0.1f;
c->t3= 0.1f;
c->fsize= 0.0f;
c->fstrength= 1.0f;
};
bNodeType cmp_node_color_matte={
/* *next,*prev */ NULL, NULL,
/* type code */ CMP_NODE_COLOR_MATTE,
/* name */ "Color Key",
/* width+range */ 200, 80, 300,
/* class+opts */ NODE_CLASS_MATTE, NODE_PREVIEW|NODE_OPTIONS,
/* input sock */ cmp_node_color_in,
/* output sock */ cmp_node_color_out,
/* storage */ "NodeChroma",
/* execfunc */ node_composit_exec_color_matte,
/* butfunc */ NULL,
/* initfunc */ node_composit_init_color_matte,
/* freestoragefunc */ node_free_standard_storage,
/* copystoragefunc */ node_copy_standard_storage,
/* id */ NULL
};
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