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Viewing changes to source/blender/nodes/intern/CMP_nodes/CMP_math.c

  • Committer: Bazaar Package Importer
  • Author(s): Florian Ernst
  • Date: 2007-05-17 11:47:59 UTC
  • mfrom: (1.2.6 upstream)
  • Revision ID: james.westby@ubuntu.com-20070517114759-yp4ybrnhp2u7pk66
Tags: 2.44-1
* New upstream release.
* Drop debian/patches/01_64bits_stupidity, not needed anymore: as of this
  version blender is 64 bits safe again. Adjust README.Debian accordingly.

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source/blender/nodes/intern/CMP_nodes/CMP_math.c
 
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/**
 
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 * $Id: CMP_math.c,v 1.4 2007/04/04 13:58:10 jesterking Exp $
 
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 *
 
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 * ***** BEGIN GPL LICENSE BLOCK *****
 
5
 *
 
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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
 
9
 * of the License, or (at your option) any later version. 
 
10
 *
 
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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
 
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
14
 * 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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 */
 
29
 
 
30
#include "../CMP_util.h"
 
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/* **************** SCALAR MATH ******************** */ 
 
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static bNodeSocketType cmp_node_math_in[]= { 
 
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        { SOCK_VALUE, 1, "Value", 0.5f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f}, 
 
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        { SOCK_VALUE, 1, "Value", 0.5f, 0.5f, 0.5f, 1.0f, -10000.0f, 10000.0f}, 
 
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        { -1, 0, "" } 
 
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};
 
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static bNodeSocketType cmp_node_math_out[]= { 
 
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        { SOCK_VALUE, 0, "Value", 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_math(bNode *node, float *out, float *in, float *in2)
 
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{
 
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        switch(node->custom1)
 
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        {
 
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        case 0: /* Add */
 
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                out[0]= in[0] + in2[0]; 
 
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                break; 
 
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        case 1: /* Subtract */
 
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                out[0]= in[0] - in2[0];
 
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                break; 
 
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        case 2: /* Multiply */
 
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                out[0]= in[0] * in2[0]; 
 
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                break; 
 
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        case 3: /* Divide */
 
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                {
 
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                        if(in[1]==0)    /* We don't want to divide by zero. */
 
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                                out[0]= 0.0;
 
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                        else
 
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                                out[0]= in[0] / in2[0];
 
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                        }
 
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                break;
 
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        case 4: /* Sine */
 
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                out[0]= sin(in[0]);
 
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                break;
 
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        case 5: /* Cosine */
 
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                out[0]= cos(in[0]);
 
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                break;
 
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        case 6: /* Tangent */
 
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                out[0]= tan(in[0]);
 
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                break;
 
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        case 7: /* Arc-Sine */
 
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                {
 
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                        /* Can't do the impossible... */
 
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                        if(in[0] <= 1 && in[0] >= -1 )
 
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                                out[0]= asin(in[0]);
 
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                        else
 
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                                out[0]= 0.0;
 
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                }
 
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                break;
 
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        case 8: /* Arc-Cosine */
 
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                {
 
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                        /* Can't do the impossible... */
 
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                        if( in[0] <= 1 && in[0] >= -1 )
 
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                                out[0]= acos(in[0]);
 
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                        else
 
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                                out[0]= 0.0;
 
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                }
 
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                break;
 
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        case 9: /* Arc-Tangent */
 
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                out[0]= atan(in[0]);
 
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                break;
 
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        case 10: /* Power */
 
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                {
 
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                        /* Don't want any imaginary numbers... */
 
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                        if( in[0] >= 0 )
 
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                                out[0]= pow(in[0], in2[0]);
 
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                        else
 
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                                out[0]= 0.0;
 
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                }
 
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                break;
 
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        case 11: /* Logarithm */
 
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                {
 
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                        /* Don't want any imaginary numbers... */
 
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                        if( in[0] > 0  && in2[0] > 0 )
 
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                                out[0]= log(in[0]) / log(in2[0]);
 
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                        else
 
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                                out[0]= 0.0;
 
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                }
 
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                break;
 
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        case 12: /* Minimum */
 
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                {
 
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                        if( in[0] < in2[0] )
 
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                                out[0]= in[0];
 
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                        else
 
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                                out[0]= in2[0];
 
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                }
 
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                break;
 
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        case 13: /* Maximum */
 
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                {
 
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                        if( in[0] > in2[0] )
 
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                                out[0]= in[0];
 
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                        else
 
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                                out[0]= in2[0];
 
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                }
 
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                break;
 
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        case 14: /* Round */
 
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                {
 
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                                out[0]= (int)(in[0] + 0.5f);
 
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                }
 
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                break; 
 
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        }
 
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}
 
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static void node_composit_exec_math(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
 
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{
 
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        /* stack order out: bw */
 
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        /* stack order in: col */
 
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        if(out[0]->hasoutput==0)
 
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                return;
 
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        /* input no image? then only color operation */
 
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        if(in[0]->data==NULL) {
 
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                do_math(node, out[0]->vec, in[0]->vec, in[1]->vec);
 
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        }
 
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        else {
 
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                /* make output size of input image */
 
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                CompBuf *cbuf= in[0]->data;
 
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                CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_VAL, 1); /* allocs */
 
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                composit2_pixel_processor(node, stackbuf, in[0]->data, in[0]->vec, in[1]->data, in[1]->vec, do_math, CB_VAL, CB_VAL);
 
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                out[0]->data= stackbuf;
 
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        }
 
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}
 
160
 
 
161
bNodeType cmp_node_math= {
 
162
        /* *next,*prev */       NULL, NULL,
 
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        /* type code   */       CMP_NODE_MATH,
 
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        /* name        */       "Math",
 
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        /* width+range */       120, 110, 160,
 
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        /* class+opts  */       NODE_CLASS_CONVERTOR, NODE_OPTIONS,
 
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        /* input sock  */       cmp_node_math_in,
 
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        /* output sock */       cmp_node_math_out,
 
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        /* storage     */       "",
 
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        /* execfunc    */       node_composit_exec_math,
 
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        /* butfunc     */       NULL,
 
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        /* initfunc    */       NULL,
 
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        /* freestoragefunc    */        NULL,
 
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        /* copystoragefunc    */        NULL,
 
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        /* id          */       NULL
 
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};
 
177
 
 
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