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/*
* ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2006 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/nodes/composite/nodes/node_composite_setalpha.c
* \ingroup cmpnodes
*/
#include "node_composite_util.h"
/* **************** SET ALPHA ******************** */
static bNodeSocketTemplate cmp_node_setalpha_in[]= {
{ SOCK_RGBA, 1, N_("Image"), 0.0f, 0.0f, 0.0f, 1.0f},
{ SOCK_FLOAT, 1, N_("Alpha"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, PROP_NONE},
{ -1, 0, "" }
};
static bNodeSocketTemplate cmp_node_setalpha_out[]= {
{ SOCK_RGBA, 0, N_("Image")},
{ -1, 0, "" }
};
static void node_composit_exec_setalpha(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
/* stack order out: RGBA image */
/* stack order in: col, alpha */
/* input no image? then only color operation */
if (in[0]->data==NULL && in[1]->data==NULL) {
out[0]->vec[0] = in[0]->vec[0];
out[0]->vec[1] = in[0]->vec[1];
out[0]->vec[2] = in[0]->vec[2];
out[0]->vec[3] = in[1]->vec[0];
}
else {
/* make output size of input image */
CompBuf *cbuf= in[0]->data?in[0]->data:in[1]->data;
CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
if (in[1]->data==NULL && in[1]->vec[0]==1.0f) {
/* pass on image */
composit1_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, do_copy_rgb, CB_RGBA);
}
else {
/* send an compbuf or a value to set as alpha - composit2_pixel_processor handles choosing the right one */
composit2_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, in[1]->data, in[1]->vec, do_copy_a_rgba, CB_RGBA, CB_VAL);
}
out[0]->data= stackbuf;
}
}
void register_node_type_cmp_setalpha(bNodeTreeType *ttype)
{
static bNodeType ntype;
node_type_base(ttype, &ntype, CMP_NODE_SETALPHA, "Set Alpha", NODE_CLASS_CONVERTOR, NODE_OPTIONS);
node_type_socket_templates(&ntype, cmp_node_setalpha_in, cmp_node_setalpha_out);
node_type_size(&ntype, 120, 40, 140);
node_type_exec(&ntype, node_composit_exec_setalpha);
nodeRegisterType(ttype, &ntype);
}
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