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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_mixrgb.c
* \ingroup cmpnodes
*/
#include "node_composite_util.h"
/* **************** MIX RGB ******************** */
static bNodeSocketTemplate cmp_node_mix_rgb_in[]= {
{ SOCK_FLOAT, 1, "Fac", 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 5.0f, PROP_FACTOR},
{ SOCK_RGBA, 1, "Image", 1.0f, 1.0f, 1.0f, 1.0f},
{ SOCK_RGBA, 1, "Image", 1.0f, 1.0f, 1.0f, 1.0f},
{ -1, 0, "" }
};
static bNodeSocketTemplate cmp_node_mix_rgb_out[]= {
{ SOCK_RGBA, 0, "Image"},
{ -1, 0, "" }
};
static void do_mix_rgb(bNode *node, float *out, float *in1, float *in2, float *fac)
{
float col[3];
copy_v3_v3(col, in1);
if(node->custom2)
ramp_blend(node->custom1, col, col+1, col+2, in2[3]*fac[0], in2);
else
ramp_blend(node->custom1, col, col+1, col+2, fac[0], in2);
copy_v3_v3(out, col);
out[3]= in1[3];
}
static void node_composit_exec_mix_rgb(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
/* stack order in: fac, Image, Image */
/* stack order out: Image */
float *fac= in[0]->vec;
if(out[0]->hasoutput==0) return;
/* input no image? then only color operation */
if(in[1]->data==NULL && in[2]->data==NULL) {
do_mix_rgb(node, out[0]->vec, in[1]->vec, in[2]->vec, fac);
}
else {
/* make output size of first available input image */
CompBuf *cbuf= in[1]->data?in[1]->data:in[2]->data;
CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* allocs */
composit3_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[2]->data, in[2]->vec, in[0]->data, fac, do_mix_rgb, CB_RGBA, CB_RGBA, CB_VAL);
out[0]->data= stackbuf;
generate_preview(data, node, out[0]->data);
}
}
/* custom1 = mix type */
void register_node_type_cmp_mix_rgb(ListBase *lb)
{
static bNodeType ntype;
node_type_base(&ntype, CMP_NODE_MIX_RGB, "Mix", NODE_CLASS_OP_COLOR, NODE_PREVIEW|NODE_OPTIONS);
node_type_socket_templates(&ntype, cmp_node_mix_rgb_in, cmp_node_mix_rgb_out);
node_type_size(&ntype, 110, 60, 120);
node_type_label(&ntype, node_blend_label);
node_type_exec(&ntype, node_composit_exec_mix_rgb);
nodeRegisterType(lb, &ntype);
}
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