135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2006 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "../CMP_util.h"
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/* **************** INVERT ******************** */
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static bNodeSocketType cmp_node_invert_in[]= {
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{ SOCK_VALUE, 1, "Fac", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
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{ SOCK_RGBA, 1, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketType cmp_node_invert_out[]= {
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{ SOCK_RGBA, 0, "Color", 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
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{ -1, 0, "" }
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};
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static void do_invert(bNode *node, float *out, float *in)
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{
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if(node->custom1 & CMP_CHAN_RGB) {
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out[0] = 1.0f - in[0];
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out[1] = 1.0f - in[1];
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out[2] = 1.0f - in[2];
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} else
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VECCOPY(out, in);
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if(node->custom1 & CMP_CHAN_A)
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out[3] = 1.0f - in[3];
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else
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out[3] = in[3];
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}
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static void do_invert_fac(bNode *node, float *out, float *in, float *fac)
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{
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float col[4], facm;
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do_invert(node, col, in);
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/* blend inverted result against original input with fac */
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facm = 1.0 - fac[0];
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if(node->custom1 & CMP_CHAN_RGB) {
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col[0] = fac[0]*col[0] + (facm*in[0]);
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col[1] = fac[0]*col[1] + (facm*in[1]);
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col[2] = fac[0]*col[2] + (facm*in[2]);
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}
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if(node->custom1 & CMP_CHAN_A)
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col[3] = fac[0]*col[3] + (facm*in[3]);
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QUATCOPY(out, col);
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}
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static void node_composit_exec_invert(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
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{
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/* stack order in: fac, Image, Image */
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/* stack order out: Image */
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float *fac= in[0]->vec;
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if(out[0]->hasoutput==0) return;
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/* input no image? then only color operation */
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if(in[1]->data==NULL && in[0]->data==NULL) {
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do_invert_fac(node, out[0]->vec, in[1]->vec, fac);
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}
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else {
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/* make output size of first available input image, or then size of fac */
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CompBuf *cbuf= in[1]->data?in[1]->data:in[0]->data;
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/* if neither RGB or A toggled on, pass through */
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if (node->custom1 != 0) {
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CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
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if (fac[0] < 1.0f || in[0]->data!=NULL)
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composit2_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[0]->data, fac, do_invert_fac, CB_RGBA, CB_VAL);
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else
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composit1_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, do_invert, CB_RGBA);
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out[0]->data= stackbuf;
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return;
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} else {
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out[0]->data = pass_on_compbuf(cbuf);
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return;
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}
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}
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}
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static void node_composit_init_invert(bNode *node)
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{
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node->custom1 |= CMP_CHAN_RGB;
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}
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/* custom1 = mix type */
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bNodeType cmp_node_invert= {
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/* *next,*prev */ NULL, NULL,
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/* type code */ CMP_NODE_INVERT,
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/* name */ "Invert",
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/* width+range */ 120, 120, 140,
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/* class+opts */ NODE_CLASS_OP_COLOR, NODE_OPTIONS,
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/* input sock */ cmp_node_invert_in,
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/* output sock */ cmp_node_invert_out,
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/* storage */ "",
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/* execfunc */ node_composit_exec_invert,
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/* butfunc */ NULL,
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/* initfunc */ node_composit_init_invert,
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/* freestoragefunc */ NULL,
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/* copystoragefunc */ NULL,
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/* id */ NULL
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};
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