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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) 2009 Blender Foundation, Joshua Leung
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Joshua Leung (full recode)
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/nla_private.h
* \ingroup bke
*/
#ifndef __NLA_PRIVATE_H__
#define __NLA_PRIVATE_H__
/* --------------- NLA Evaluation DataTypes ----------------------- */
/* used for list of strips to accumulate at current time */
typedef struct NlaEvalStrip {
struct NlaEvalStrip *next, *prev;
NlaTrack *track; /* track that this strip belongs to */
NlaStrip *strip; /* strip that's being used */
short track_index; /* the index of the track within the list */
short strip_mode; /* which end of the strip are we looking at */
float strip_time; /* time at which which strip is being evaluated */
} NlaEvalStrip;
/* NlaEvalStrip->strip_mode */
enum {
/* standard evaluation */
NES_TIME_BEFORE = -1,
NES_TIME_WITHIN,
NES_TIME_AFTER,
/* transition-strip evaluations */
NES_TIME_TRANSITION_START,
NES_TIME_TRANSITION_END,
} eNlaEvalStrip_StripMode;
/* temp channel for accumulating data from NLA (avoids needing to clear all values first) */
// TODO: maybe this will be used as the 'cache' stuff needed for editable values too?
typedef struct NlaEvalChannel {
struct NlaEvalChannel *next, *prev;
PointerRNA ptr; /* pointer to struct containing property to use */
PropertyRNA *prop; /* RNA-property type to use (should be in the struct given) */
int index; /* array index (where applicable) */
float value; /* value of this channel */
} NlaEvalChannel;
/* --------------- NLA Functions (not to be used as a proper API) ----------------------- */
/* convert from strip time <-> global time */
float nlastrip_get_frame(NlaStrip *strip, float cframe, short mode);
/* --------------- NLA Evaluation (very-private stuff) ----------------------- */
/* these functions are only defined here to avoid problems with the order in which they get defined... */
NlaEvalStrip *nlastrips_ctime_get_strip(ListBase *list, ListBase *strips, short index, float ctime);
void nlastrip_evaluate(PointerRNA *ptr, ListBase *channels, ListBase *modifiers, NlaEvalStrip *nes);
void nladata_flush_channels(ListBase *channels);
#endif /* __NLA_PRIVATE_H__ */
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