CMP_vecBlur.c

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/*
 * $Id: CMP_vecBlur.c 36276 2011-04-21 15:53:30Z campbellbarton $
 *
 * ***** 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 *****
 */

#include "../CMP_util.h"


/* **************** VECTOR BLUR ******************** */
static bNodeSocketType cmp_node_vecblur_in[]= {
        {       SOCK_RGBA, 1, "Image",                  0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
        {       SOCK_VALUE, 1, "Z",                     0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
        {       SOCK_VECTOR, 1, "Speed",                        0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};
static bNodeSocketType cmp_node_vecblur_out[]= {
        {       SOCK_RGBA, 0, "Image",                  0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f},
        {       -1, 0, ""       }
};



static void node_composit_exec_vecblur(void *UNUSED(data), bNode *node, bNodeStack **in, bNodeStack **out)
{
        NodeBlurData *nbd= node->storage;
        CompBuf *new, *img= in[0]->data, *vecbuf= in[2]->data, *zbuf= in[1]->data;
        
        if(img==NULL || vecbuf==NULL || zbuf==NULL || out[0]->hasoutput==0)
                return;
        if(vecbuf->x!=img->x || vecbuf->y!=img->y) {
                printf("ERROR: cannot do different sized vecbuf yet\n");
                return;
        }
        if(vecbuf->type!=CB_VEC4) {
                printf("ERROR: input should be vecbuf\n");
                return;
        }
        if(zbuf->type!=CB_VAL) {
                printf("ERROR: input should be zbuf\n");
                return;
        }
        if(zbuf->x!=img->x || zbuf->y!=img->y) {
                printf("ERROR: cannot do different sized zbuf yet\n");
                return;
        }
        
        /* allow the input image to be of another type */
        img= typecheck_compbuf(in[0]->data, CB_RGBA);

        new= dupalloc_compbuf(img);
        
        /* call special zbuffer version */
        RE_zbuf_accumulate_vecblur(nbd, img->x, img->y, new->rect, img->rect, vecbuf->rect, zbuf->rect);
        
        out[0]->data= new;
        
        if(img!=in[0]->data)
                free_compbuf(img);
}

static void node_composit_init_vecblur(bNode* node)
{
        NodeBlurData *nbd= MEM_callocN(sizeof(NodeBlurData), "node blur data");
        node->storage= nbd;
        nbd->samples= 32;
        nbd->fac= 1.0f;
}

/* custom1: itterations, custom2: maxspeed (0 = nolimit) */
void register_node_type_cmp_vecblur(ListBase *lb)
{
        static bNodeType ntype;

        node_type_base(&ntype, CMP_NODE_VECBLUR, "Vector Blur", NODE_CLASS_OP_FILTER, NODE_OPTIONS,
                cmp_node_vecblur_in, cmp_node_vecblur_out);
        node_type_size(&ntype, 120, 80, 200);
        node_type_init(&ntype, node_composit_init_vecblur);
        node_type_storage(&ntype, "NodeBlurData", node_free_standard_storage, node_copy_standard_storage);
        node_type_exec(&ntype, node_composit_exec_vecblur);

        nodeRegisterType(lb, &ntype);
}