1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* 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.
*/
/** \file
* \ingroup bke
*/
#pragma once
#include "BLI_bitmap.h"
#include "BLI_ghash.h"
#include "RNA_types.h"
#ifdef __cplusplus
extern "C" {
#endif
struct AnimationEvalContext;
/* --------------- 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 eNlaEvalStrip_StripMode {
/* standard evaluation */
NES_TIME_BEFORE = -1,
NES_TIME_WITHIN,
NES_TIME_AFTER,
/* transition-strip evaluations */
NES_TIME_TRANSITION_START,
NES_TIME_TRANSITION_END,
};
struct NlaEvalChannel;
struct NlaEvalData;
/* Unique channel key for GHash. */
typedef struct NlaEvalChannelKey {
struct PointerRNA ptr;
struct PropertyRNA *prop;
} NlaEvalChannelKey;
/* Bitmask of array indices touched by actions. */
typedef struct NlaValidMask {
BLI_bitmap *ptr;
BLI_bitmap buffer[sizeof(uint64_t) / sizeof(BLI_bitmap)];
} NlaValidMask;
/* Set of property values for blending. */
typedef struct NlaEvalChannelSnapshot {
struct NlaEvalChannel *channel;
/** Only used for keyframe remapping for inverting through a transition. Bit set if raw value was
* written so we know where the channel value comes from (whether it's the property's default or
* from the strip). */
NlaValidMask raw_value_sampled;
/** Only used for keyframe remapping to know whether channel value can be further inverted to
* solve for tweak strip value. */
NlaValidMask invertible;
int length; /* Number of values in the property. */
bool is_base; /* Base snapshot of the channel. */
float values[]; /* Item values. */
/* Memory over-allocated to provide space for values. */
} NlaEvalChannelSnapshot;
/* NlaEvalChannel->mix_mode */
enum eNlaEvalChannel_MixMode {
NEC_MIX_ADD,
NEC_MIX_MULTIPLY,
NEC_MIX_QUATERNION,
NEC_MIX_AXIS_ANGLE,
};
/* Temp channel for accumulating data from NLA for a single property.
* Handles array properties as a unit to allow intelligent blending. */
typedef struct NlaEvalChannel {
struct NlaEvalChannel *next, *prev;
struct NlaEvalData *owner;
/* Original RNA path string and property key. */
const char *rna_path;
NlaEvalChannelKey key;
int index;
bool is_array;
bool in_blend;
char mix_mode;
struct NlaEvalChannel *next_blend;
NlaEvalChannelSnapshot *blend_snapshot;
/* Mask of array items controlled by NLA. */
NlaValidMask domain;
/* Base set of values. */
NlaEvalChannelSnapshot base_snapshot;
/* Memory over-allocated to provide space for base_snapshot.values. */
} NlaEvalChannel;
/* Set of values for all channels. */
typedef struct NlaEvalSnapshot {
/* Snapshot this one defaults to. */
struct NlaEvalSnapshot *base;
int size;
NlaEvalChannelSnapshot **channels;
} NlaEvalSnapshot;
/* Set of all channels covered by NLA. */
typedef struct NlaEvalData {
ListBase channels;
/* Mapping of paths and NlaEvalChannelKeys to channels. */
GHash *path_hash;
GHash *key_hash;
/* Base snapshot. */
int num_channels;
NlaEvalSnapshot base_snapshot;
/* Evaluation result shapshot. */
NlaEvalSnapshot eval_snapshot;
} NlaEvalData;
/* Information about the currently edited strip and ones below it for keyframing. */
typedef struct NlaKeyframingContext {
struct NlaKeyframingContext *next, *prev;
/* AnimData for which this context was built. */
struct AnimData *adt;
/* Data of the currently edited strip (copy, or fake strip for the main action). */
NlaStrip strip;
NlaEvalStrip *eval_strip;
/** Storage for the non-stashed action as a strip. Only used for keyframing. */
NlaStrip nonuser_act_strip;
/* Strips above tweaked strip. */
ListBase upper_estrips;
/* Evaluated NLA stack below the tweak strip. */
NlaEvalData lower_nla_channels;
} NlaKeyframingContext;
/* --------------- 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,
const struct AnimationEvalContext *anim_eval_context,
const bool flush_to_original);
void nlastrip_evaluate(PointerRNA *ptr,
NlaEvalData *channels,
ListBase *modifiers,
NlaEvalStrip *nes,
NlaEvalSnapshot *snapshot,
const struct AnimationEvalContext *anim_eval_context,
const bool flush_to_original,
bool allow_alloc_channels);
void nlastrip_evaluate_invert_get_lower_values(
PointerRNA *ptr,
NlaEvalData *upper_eval_data,
ListBase *modifiers,
NlaEvalStrip *nes,
NlaEvalSnapshot *snapshot,
const struct AnimationEvalContext *anim_eval_context);
void nlastrip_evaluate_raw_value(PointerRNA *ptr,
NlaEvalData *upper_eval_data,
ListBase *modifiers,
NlaEvalStrip *nes,
NlaEvalSnapshot *snapshot,
const struct AnimationEvalContext *anim_eval_context,
short *r_blendmode,
float *r_influence);
void nladata_flush_channels(PointerRNA *ptr,
NlaEvalData *channels,
NlaEvalSnapshot *snapshot,
const bool flush_to_original);
#ifdef __cplusplus
}
#endif
|
