speaker.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) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): Jörg Müller.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "DNA_object_types.h"
#include "DNA_sound_types.h"
#include "DNA_speaker_types.h"

#include "BLI_math.h"
#include "BLI_utildefines.h"
#include "BLI_bpath.h"

#include "BKE_animsys.h"
#include "BKE_global.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_speaker.h"

void *add_speaker(const char *name)
{
    Speaker *spk;

    spk=  alloc_libblock(&G.main->speaker, ID_SPK, name);

    spk->attenuation = 1.0f;
    spk->cone_angle_inner = 360.0f;
    spk->cone_angle_outer = 360.0f;
    spk->cone_volume_outer = 1.0f;
    spk->distance_max = FLT_MAX;
    spk->distance_reference = 1.0f;
    spk->flag = 0;
    spk->pitch = 1.0f;
    spk->sound = NULL;
    spk->volume = 1.0f;
    spk->volume_max = 1.0f;
    spk->volume_min = 0.0f;

    return spk;
}

Speaker *copy_speaker(Speaker *spk)
{
    Speaker *spkn;

    spkn= copy_libblock(&spk->id);
    if(spkn->sound)
        spkn->sound->id.us++;

    return spkn;
}

void make_local_speaker(Speaker *spk)
{
    Main *bmain= G.main;
    Object *ob;
    int is_local= FALSE, is_lib= FALSE;

    /* - only lib users: do nothing
        * - only local users: set flag
        * - mixed: make copy
        */

    if(spk->id.lib==NULL) return;
    if(spk->id.us==1) {
        id_clear_lib_data(bmain, &spk->id);
        return;
    }

    ob= bmain->object.first;
    while(ob) {
        if(ob->data==spk) {
            if(ob->id.lib) is_lib= TRUE;
            else is_local= TRUE;
        }
        ob= ob->id.next;
    }

    if(is_local && is_lib == FALSE) {
        id_clear_lib_data(bmain, &spk->id);
    }
    else if(is_local && is_lib) {
        Speaker *spk_new= copy_speaker(spk);
        spk_new->id.us= 0;

        /* Remap paths of new ID using old library as base. */
        BKE_id_lib_local_paths(bmain, spk->id.lib, &spk_new->id);

        ob= bmain->object.first;
        while(ob) {
            if(ob->data==spk) {

                if(ob->id.lib==NULL) {
                    ob->data= spk_new;
                    spk_new->id.us++;
                    spk->id.us--;
                }
            }
            ob= ob->id.next;
        }
    }
}

void free_speaker(Speaker *spk)
{
    if(spk->sound)
        spk->sound->id.us--;

    BKE_free_animdata((ID *)spk);
}