node_composite_moviedistortion.c

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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) 2011 Blender Foundation.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): Blender Foundation,
 *                 Sergey Sharybin
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "node_composite_util.h"

/* **************** Translate  ******************** */

static bNodeSocketTemplate cmp_node_moviedistortion_in[]= {
    {   SOCK_RGBA, 1, "Image",          0.8f, 0.8f, 0.8f, 1.0f, 0.0f, 1.0f},
    {   -1, 0, ""   }
};

static bNodeSocketTemplate cmp_node_moviedistortion_out[]= {
    {   SOCK_RGBA, 0, "Image"},
    {   -1, 0, ""   }
};

static void exec(void *data, bNode *node, bNodeStack **in, bNodeStack **out)
{
    if(in[0]->data) {
        if(node->id) {
            MovieClip *clip= (MovieClip *)node->id;
            CompBuf *cbuf= typecheck_compbuf(in[0]->data, CB_RGBA);
            CompBuf *stackbuf= alloc_compbuf(cbuf->x, cbuf->y, CB_RGBA, 0);
            ImBuf *ibuf;

            ibuf= IMB_allocImBuf(cbuf->x, cbuf->y, 32, 0);

            if(ibuf) {
                RenderData *rd= data;
                ImBuf *obuf;
                MovieTracking *tracking= &clip->tracking;
                int width, height;
                float overscan= 0.0f;
                MovieClipUser user= {0};

                BKE_movieclip_user_set_frame(&user, rd->cfra);

                ibuf->rect_float= cbuf->rect;

                BKE_movieclip_get_size(clip, &user, &width, &height);

                if(!node->storage)
                    node->storage= BKE_tracking_distortion_create();

                if(node->custom1==0)
                    obuf= BKE_tracking_distortion_exec(node->storage, tracking, ibuf, width, height, overscan, 1);
                else
                    obuf= BKE_tracking_distortion_exec(node->storage, tracking, ibuf, width, height, overscan, 0);

                stackbuf->rect= obuf->rect_float;
                stackbuf->malloc= 1;

                obuf->mall&= ~IB_rectfloat;
                obuf->rect_float= NULL;

                IMB_freeImBuf(ibuf);
                IMB_freeImBuf(obuf);
            }

            /* pass on output and free */
            out[0]->data= stackbuf;

            if(cbuf!=in[0]->data)
                free_compbuf(cbuf);
        } else {
            CompBuf *cbuf= in[0]->data;
            CompBuf *stackbuf= pass_on_compbuf(cbuf);

            out[0]->data= stackbuf;
        }
    }
}

static const char *label(bNode *node)
{
    if(node->custom1==0)
        return "Undistortion";
    else
        return "Distortion";
}

static void storage_free(bNode *node)
{
    if(node->storage)
        BKE_tracking_distortion_destroy(node->storage);

    node->storage= NULL;
}

static void storage_copy(bNode *orig_node, bNode *new_node)
{
    if(orig_node->storage)
        new_node->storage= BKE_tracking_distortion_copy(orig_node->storage);
}

void register_node_type_cmp_moviedistortion(bNodeTreeType *ttype)
{
    static bNodeType ntype;

    node_type_base(ttype, &ntype, CMP_NODE_MOVIEDISTORTION, "Movie Distortion", NODE_CLASS_DISTORT, NODE_OPTIONS);
    node_type_socket_templates(&ntype, cmp_node_moviedistortion_in, cmp_node_moviedistortion_out);
    node_type_size(&ntype, 140, 100, 320);
    node_type_label(&ntype, label);
    node_type_exec(&ntype, exec);
    node_type_storage(&ntype, NULL, storage_free, storage_copy);

    nodeRegisterType(ttype, &ntype);
}