2
* $Id: CMP_setalpha.c,v 1.4 2007/04/04 13:58:10 jesterking Exp $
4
* ***** BEGIN GPL LICENSE BLOCK *****
6
* This program is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU General Public License
8
* as published by the Free Software Foundation; either version 2
9
* of the License, or (at your option) any later version.
11
* This program is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
* GNU General Public License for more details.
16
* You should have received a copy of the GNU General Public License
17
* along with this program; if not, write to the Free Software Foundation,
18
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
* The Original Code is Copyright (C) 2006 Blender Foundation.
21
* All rights reserved.
23
* The Original Code is: all of this file.
25
* Contributor(s): none yet.
27
* ***** END GPL LICENSE BLOCK *****
30
#include "../CMP_util.h"
32
/* **************** SET ALPHA ******************** */
33
static bNodeSocketType cmp_node_setalpha_in[]= {
34
{ SOCK_RGBA, 1, "Image", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
35
{ SOCK_VALUE, 1, "Alpha", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
38
static bNodeSocketType cmp_node_setalpha_out[]= {
39
{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 1.0f, 1.0f, -1.0f, 1.0f},
43
static void node_composit_exec_setalpha(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
45
/* stack order out: RGBA image */
46
/* stack order in: col, alpha */
48
/* input no image? then only color operation */
49
if(in[0]->data==NULL) {
50
out[0]->vec[0] = in[0]->vec[0];
51
out[0]->vec[1] = in[0]->vec[1];
52
out[0]->vec[2] = in[0]->vec[2];
53
out[0]->vec[3] = in[1]->vec[0];
56
/* make output size of input image */
57
CompBuf *cbuf= in[0]->data;
58
CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
60
if(in[1]->data==NULL && in[1]->vec[0]==1.0f) {
62
composit1_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, do_copy_rgb, CB_RGBA);
65
/* send an compbuf or a value to set as alpha - composit2_pixel_processor handles choosing the right one */
66
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);
69
out[0]->data= stackbuf;
73
bNodeType cmp_node_setalpha= {
74
/* *next,*prev */ NULL, NULL,
75
/* type code */ CMP_NODE_SETALPHA,
76
/* name */ "Set Alpha",
77
/* width+range */ 120, 40, 140,
78
/* class+opts */ NODE_CLASS_CONVERTOR, NODE_OPTIONS,
79
/* input sock */ cmp_node_setalpha_in,
80
/* output sock */ cmp_node_setalpha_out,
82
/* execfunc */ node_composit_exec_setalpha,
85
/* freestoragefunc */ NULL,
86
/* copystoragefunc */ NULL,