Campbell Barton
8268a4be71
- removed deprecated bitmap arg from IMB_allocImBuf (plugins will need updating). - mostly tagged UNUSED() since some of these functions look like they may need to have the arguments used later.
114 lines
3.1 KiB
C
114 lines
3.1 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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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/* **************** Brigh and contrsast ******************** */
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static bNodeSocketType cmp_node_brightcontrast_in[]= {
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{ SOCK_RGBA, 1, "Image", 0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
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{ SOCK_VALUE, 1, "Bright", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f},
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{ SOCK_VALUE, 1, "Contrast", 0.0f, 0.0f, 0.0f, 0.0f, -100.0f, 100.0f},
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{ -1, 0, "" }
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};
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static bNodeSocketType cmp_node_brightcontrast_out[]= {
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{ SOCK_RGBA, 0, "Image", 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_brightnesscontrast(bNode *node, float *out, float *in)
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{
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float i;
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int c;
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float a, b, contrast, brightness, delta, v;
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contrast = node->custom2;
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brightness = (float)(node->custom1);
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brightness = (brightness) / 100.0f;
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delta = contrast / 200.0f;
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a = 1.0f - delta * 2.0f;
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/*
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* The algorithm is by Werner D. Streidt
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* (http://visca.com/ffactory/archives/5-99/msg00021.html)
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* Extracted of OpenCV demhist.c
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*/
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if( contrast > 0 )
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{
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a = 1.0f / a;
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b = a * (brightness - delta);
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}
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else
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{
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delta *= -1;
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b = a * (brightness + delta);
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}
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for(c=0; c<3; c++){
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i = in[c];
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v = a*i + b;
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out[c] = v;
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}
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}
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static void node_composit_exec_brightcontrast(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
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{
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if(out[0]->hasoutput==0)
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return;
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if(in[0]->data) {
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CompBuf *stackbuf, *cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
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node->custom1 = in[1]->vec[0];
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node->custom2 = in[2]->vec[0];
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stackbuf= dupalloc_compbuf(cbuf);
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composit1_pixel_processor(node, stackbuf, cbuf, in[0]->vec, do_brightnesscontrast, CB_RGBA);
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out[0]->data = stackbuf;
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if(cbuf != in[0]->data)
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free_compbuf(cbuf);
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}
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}
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bNodeType cmp_node_brightcontrast= {
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/* *next,*prev */ NULL, NULL,
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/* type code */ CMP_NODE_BRIGHTCONTRAST,
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/* name */ "Bright/Contrast",
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/* width+range */ 140, 100, 320,
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/* class+opts */ NODE_CLASS_OP_COLOR, NODE_OPTIONS,
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/* input sock */ cmp_node_brightcontrast_in,
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/* output sock */ cmp_node_brightcontrast_out,
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/* storage */ "",
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/* execfunc */ node_composit_exec_brightcontrast,
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/* butfunc */ NULL,
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/* initfunc */ NULL,
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/* freestoragefunc */ NULL,
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/* copysotragefunc */ NULL,
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/* id */ NULL
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};
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