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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): Matt Ebb
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "../CMP_util.h"
static bNodeSocketType cmp_node_huecorrect_in[]= {
{ SOCK_VALUE, 1, "Fac", 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
{ SOCK_RGBA, 1, "Image", 0.0f, 0.0f, 0.0f, 1.0f, -1.0f, 1.0f},
{ -1, 0, "" }
};
static bNodeSocketType cmp_node_huecorrect_out[]= {
{ SOCK_RGBA, 0, "Image", 0.0f, 0.0f, 1.0f, 1.0f, -1.0f, 1.0f},
{ -1, 0, "" }
};
static void do_huecorrect(bNode *node, float *out, float *in)
{
float hsv[3], f;
rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2);
/* returns default 0.5 */
f = curvemapping_evaluateF(node->storage, 0, hsv[0]);
/* adjust saturation, scaling up to 1 */
hsv[1] *= (f * 2.f);
CLAMP(hsv[1], 0.f, 1.f);
/* convert back to rgb */
hsv_to_rgb(hsv[0], hsv[1], hsv[2], out, out+1, out+2);
out[3]= in[3];
}
static void do_huecorrect_fac(bNode *node, float *out, float *in, float *fac)
{
float hsv[3], rgb[3], f;
const float mfac = 1.f-*fac;
rgb_to_hsv(in[0], in[1], in[2], hsv, hsv+1, hsv+2);
/* returns default 0.5 */
f = curvemapping_evaluateF(node->storage, 0, hsv[0]);
/* adjust saturation, scaling up to 1 */
hsv[1] *= (f * 2.f);
CLAMP(hsv[1], 0.f, 1.f);
/* convert back to rgb */
hsv_to_rgb(hsv[0], hsv[1], hsv[2], rgb, rgb+1, rgb+2);
out[0]= mfac*in[0] + *fac*rgb[0];
out[1]= mfac*in[1] + *fac*rgb[1];
out[2]= mfac*in[2] + *fac*rgb[2];
out[3]= in[3];
}
static void node_composit_exec_huecorrect(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
CompBuf *cbuf= in[1]->data;
CompBuf *stackbuf;
/* stack order input: fac, image, black level, white level */
/* stack order output: image */
if(out[0]->hasoutput==0)
return;
if(in[0]->vec[0] == 0.f && in[0]->data == NULL) {
out[0]->data = pass_on_compbuf(cbuf);
return;
}
/* input no image? then only color operation */
if(in[1]->data==NULL) {
do_huecorrect_fac(node, out[0]->vec, in[1]->vec, in[0]->vec);
}
if (cbuf) {
stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 1); /* make output size of input image */
if ((in[0]->data==NULL) && (in[0]->vec[0] >= 1.f))
composit1_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, do_huecorrect, CB_RGBA);
else
composit2_pixel_processor(node, stackbuf, in[1]->data, in[1]->vec, in[0]->data, in[0]->vec, do_huecorrect_fac, CB_RGBA, CB_VAL);
out[0]->data= stackbuf;
}
}
static void node_composit_init_huecorrect(bNode* node)
{
CurveMapping *cumapping = node->storage= curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
CurveMap *cuma = &cumapping->cm[0];
int i;
/* set default horizontal curve */
if(cuma->curve)
MEM_freeN(cuma->curve);
cuma->totpoint= 9;
cuma->curve= MEM_callocN(cuma->totpoint*sizeof(CurveMapPoint), "curve points");
for (i=0; i < cuma->totpoint; i++)
{
cuma->curve[i].x= i / ((float)cuma->totpoint-1);
cuma->curve[i].y= 0.5;
}
if(cuma->table) {
MEM_freeN(cuma->table);
cuma->table= NULL;
}
}
bNodeType cmp_node_huecorrect= {
/* *next,*prev */ NULL, NULL,
/* type code */ CMP_NODE_HUECORRECT,
/* name */ "Hue Correct",
/* width+range */ 320, 140, 400,
/* class+opts */ NODE_CLASS_OP_COLOR, NODE_OPTIONS,
/* input sock */ cmp_node_huecorrect_in,
/* output sock */ cmp_node_huecorrect_out,
/* storage */ "CurveMapping",
/* execfunc */ node_composit_exec_huecorrect,
/* butfunc */ NULL,
/* initfunc */ node_composit_init_huecorrect,
/* freestoragefunc */ node_free_curves,
/* copystoragefunc */ node_copy_curves,
/* id */ NULL
};
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