summaryrefslogtreecommitdiff
path: root/indra/llinventory/llsettingsdaycycle.cpp
blob: 51bc6b0e54ab7d059f0987bfffca0d2593801a1c (plain)
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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
/**
* @file llsettingsdaycycle.cpp
* @author optional
* @brief A base class for asset based settings groups.
*
* $LicenseInfo:2011&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2017, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
* $/LicenseInfo$
*/

#include "llsettingsdaycycle.h"
#include "llerror.h"
#include <algorithm>
#include <boost/make_shared.hpp>
#include "lltrace.h"
#include "llfasttimer.h"
#include "v3colorutil.h"

#include "llsettingssky.h"
#include "llsettingswater.h"

#include "llframetimer.h"

//=========================================================================
namespace
{
    LLTrace::BlockTimerStatHandle FTM_BLEND_WATERVALUES("Blending Water Environment");
    LLTrace::BlockTimerStatHandle FTM_UPDATE_WATERVALUES("Update Water Environment");

    template<typename T>
    inline T get_wrapping_distance(T begin, T end)
    {
        if (begin < end)
        {
            return end - begin;
        }
        else if (begin > end)
        {
            return T(1.0) - (begin - end);
        }

        return 0;
    }

    LLSettingsDay::CycleTrack_t::iterator get_wrapping_atafter(LLSettingsDay::CycleTrack_t &collection, const LLSettingsBase::TrackPosition& key)
    {
        if (collection.empty())
            return collection.end();

        LLSettingsDay::CycleTrack_t::iterator it = collection.upper_bound(key);

        if (it == collection.end())
        {   // wrap around
            it = collection.begin();
        }

        return it;
    }

    LLSettingsDay::CycleTrack_t::iterator get_wrapping_atbefore(LLSettingsDay::CycleTrack_t &collection, const LLSettingsBase::TrackPosition& key)
    {
        if (collection.empty())
            return collection.end();

        LLSettingsDay::CycleTrack_t::iterator it = collection.lower_bound(key);

        if (it == collection.end())
        {   // all keyframes are lower, take the last one.
            --it; // we know the range is not empty
        }
        else if ((*it).first > key)
        {   // the keyframe we are interested in is smaller than the found.
            if (it == collection.begin())
                it = collection.end();
            --it;
        }

        return it;
    }


}

//=========================================================================
const std::string LLSettingsDay::SETTING_KEYID("key_id");
const std::string LLSettingsDay::SETTING_KEYNAME("key_name");
const std::string LLSettingsDay::SETTING_KEYKFRAME("key_keyframe");
const std::string LLSettingsDay::SETTING_KEYHASH("key_hash");
const std::string LLSettingsDay::SETTING_TRACKS("tracks");
const std::string LLSettingsDay::SETTING_FRAMES("frames");

const LLSettingsDay::Seconds LLSettingsDay::MINIMUM_DAYLENGTH(120);    // 2 mins
const LLSettingsDay::Seconds LLSettingsDay::DEFAULT_DAYLENGTH(14400);  // 4 hours
const LLSettingsDay::Seconds LLSettingsDay::MAXIMUM_DAYLENGTH(604800); // 7 days

const LLSettingsDay::Seconds LLSettingsDay::MINIMUM_DAYOFFSET(0);
const LLSettingsDay::Seconds LLSettingsDay::DEFAULT_DAYOFFSET(57600);  // +16 hours == -8 hours (SLT time offset)
const LLSettingsDay::Seconds LLSettingsDay::MAXIMUM_DAYOFFSET(86400);  // 24 hours

const S32 LLSettingsDay::TRACK_WATER(0);   // water track is 0
const S32 LLSettingsDay::TRACK_MAX(5);     // 5 tracks, 4 skys, 1 water
const S32 LLSettingsDay::FRAME_MAX(56);

// *LAPRAS* Change when Agni
static const LLUUID DEFAULT_ASSET_ID("94d296c2-6e05-963c-6b62-671199121dbb");

//=========================================================================
LLSettingsDay::LLSettingsDay(const LLSD &data) :
    LLSettingsBase(data),
    mInitialized(false)
{
    mDayTracks.resize(TRACK_MAX);
}

LLSettingsDay::LLSettingsDay() :
    LLSettingsBase(),
    mInitialized(false)
{
    mDayTracks.resize(TRACK_MAX);
}

//=========================================================================
LLSD LLSettingsDay::getSettings() const
{
    LLSD settings(LLSD::emptyMap());

    if (mSettings.has(SETTING_NAME))
        settings[SETTING_NAME] = mSettings[SETTING_NAME];

    if (mSettings.has(SETTING_ID))
        settings[SETTING_ID] = mSettings[SETTING_ID];

    settings[SETTING_TYPE] = getSettingsType();

    std::map<std::string, LLSettingsBase::ptr_t> in_use;

    LLSD tracks(LLSD::emptyArray());
    
    for (CycleList_t::const_iterator itTrack = mDayTracks.begin(); itTrack != mDayTracks.end(); ++itTrack)
    {
        LLSD trackout(LLSD::emptyArray());

        for (CycleTrack_t::const_iterator itFrame = (*itTrack).begin(); itFrame != (*itTrack).end(); ++itFrame)
        {
            F32 frame = (*itFrame).first;
            LLSettingsBase::ptr_t data = (*itFrame).second;
            size_t datahash = data->getHash();

            std::stringstream keyname;
            keyname << datahash;

            trackout.append(LLSD(LLSDMap(SETTING_KEYKFRAME, LLSD::Real(frame))(SETTING_KEYNAME, keyname.str())));
            in_use[keyname.str()] = data;
        }
        tracks.append(trackout);
    }
    settings[SETTING_TRACKS] = tracks;

    LLSD frames(LLSD::emptyMap());
    for (std::map<std::string, LLSettingsBase::ptr_t>::iterator itFrame = in_use.begin(); itFrame != in_use.end(); ++itFrame)
    {
        LLSD framesettings = llsd_clone((*itFrame).second->getSettings(),
            LLSDMap("*", true)(SETTING_NAME, false)(SETTING_ID, false)(SETTING_HASH, false));

        frames[(*itFrame).first] = framesettings;
    }
    settings[SETTING_FRAMES] = frames;

    return settings;
}

bool LLSettingsDay::initialize()
{
    LLSD tracks = mSettings[SETTING_TRACKS];
    LLSD frames = mSettings[SETTING_FRAMES];

    std::map<std::string, LLSettingsBase::ptr_t> used;

    for (LLSD::map_const_iterator itFrame = frames.beginMap(); itFrame != frames.endMap(); ++itFrame)
    {
        std::string name = (*itFrame).first;
        LLSD data = (*itFrame).second;
        LLSettingsBase::ptr_t keyframe;

        if (data[SETTING_TYPE].asString() == "sky")
        {
            keyframe = buildSky(data);
        }
        else if (data[SETTING_TYPE].asString() == "water")
        {
            keyframe = buildWater(data);
        }
        else
        {
            LL_WARNS("DAYCYCLE") << "Unknown child setting type '" << data[SETTING_TYPE].asString() << "' named '" << name << "'" << LL_ENDL;
        }
        if (!keyframe)
        {
            LL_WARNS("DAYCYCLE") << "Invalid frame data" << LL_ENDL;
            continue;
        }

        used[name] = keyframe;
    }

    bool haswater(false);
    bool hassky(false);

    for (S32 i = 0; (i < tracks.size()) && (i < TRACK_MAX); ++i)
    {
        mDayTracks[i].clear();
        LLSD curtrack = tracks[i];
        for (LLSD::array_const_iterator it = curtrack.beginArray(); it != curtrack.endArray(); ++it)
        {
            LLSettingsBase::TrackPosition keyframe = LLSettingsBase::TrackPosition((*it)[SETTING_KEYKFRAME].asReal());
            keyframe = llclamp(keyframe, 0.0f, 1.0f);
            LLSettingsBase::ptr_t setting;

            if ((*it).has(SETTING_KEYNAME))
            {
                if (i == TRACK_WATER)
                {
                    setting = used[(*it)[SETTING_KEYNAME]];
                    if (setting && setting->getSettingsType() != "water")
                    {
                        LL_WARNS("DAYCYCLE") << "Water track referencing " << setting->getSettingsType() << " frame at " << keyframe << "." << LL_ENDL;
                        setting.reset();
                    }
                }
                else
                {
                    setting = used[(*it)[SETTING_KEYNAME]];
                    if (setting && setting->getSettingsType() != "sky")
                    {
                        LL_WARNS("DAYCYCLE") << "Sky track #" << i << " referencing " << setting->getSettingsType() << " frame at " << keyframe << "." << LL_ENDL;
                        setting.reset();
                    }
                }
            }

            if (setting)
            {
                if (i == TRACK_WATER)
                    haswater |= true;
                else
                    hassky |= true;
                mDayTracks[i][keyframe] = setting;
            }
        }
    }

    if (!haswater || !hassky)
    {
        LL_WARNS("DAYCYCLE") << "Must have at least one water and one sky frame!" << LL_ENDL;
        return false;
    }
    // these are no longer needed and just take up space now.
    mSettings.erase(SETTING_TRACKS);
    mSettings.erase(SETTING_FRAMES);

    mInitialized = true;
    return true;
}


//=========================================================================
LLSD LLSettingsDay::defaults()
{
    LLSD dfltsetting;

    dfltsetting[SETTING_NAME] = "_default_";

    LLSD waterTrack;
    waterTrack[SETTING_KEYKFRAME] = 0.0f;
    waterTrack[SETTING_KEYNAME]   = "_default_";

    LLSD skyTrack;
    skyTrack[SETTING_KEYKFRAME] = 0.0f;
    skyTrack[SETTING_KEYNAME]   = "_default_";

    LLSD tracks;
    tracks.append(LLSDArray(waterTrack));
    tracks.append(LLSDArray(skyTrack));

    dfltsetting[SETTING_TRACKS] = tracks;

    LLSD frames(LLSD::emptyMap());

    frames["water:_defaults_"] = LLSettingsWater::defaults();
    frames["sky:_defaults_"] = LLSettingsSky::defaults();

    dfltsetting[SETTING_FRAMES] = frames;

    dfltsetting[SETTING_TYPE] = "daycycle";

    return dfltsetting;
}

void LLSettingsDay::blend(const LLSettingsBase::ptr_t &other, F64 mix)
{
    LL_ERRS("DAYCYCLE") << "Day cycles are not blendable!" << LL_ENDL;
}

namespace
{
    bool validateDayCycleTrack(LLSD &value)
    {
        // Trim extra tracks.
        while (value.size() > LLSettingsDay::TRACK_MAX)
        {
            value.erase(value.size() - 1);
        }

        S32 framecount(0);

        for (LLSD::array_iterator track = value.beginArray(); track != value.endArray(); ++track)
        {
            S32 index = 0;
            while (index < (*track).size())
            {
                LLSD& elem = (*track)[index];

                ++framecount;
                if (index >= LLSettingsDay::FRAME_MAX)
                {
                    (*track).erase(index);
                    continue;
                }

                if (!elem.has(LLSettingsDay::SETTING_KEYKFRAME))
                {
                    (*track).erase(index);
                    continue;
                }

                if (!elem[LLSettingsDay::SETTING_KEYKFRAME].isReal())
                {
                    (*track).erase(index);
                    continue;
                }

                if (!elem.has(LLSettingsDay::SETTING_KEYNAME) &&
                    !elem.has(LLSettingsDay::SETTING_KEYID))
                {
                    (*track).erase(index);
                    continue;
                }

                LLSettingsBase::TrackPosition frame = elem[LLSettingsDay::SETTING_KEYKFRAME].asReal();
                if ((frame < 0.0) || (frame > 1.0))
                {
                    frame = llclamp(frame, 0.0f, 1.0f);
                    elem[LLSettingsDay::SETTING_KEYKFRAME] = frame;
                }
                ++index;
            }

        }

        int waterTracks = value[0].size();
        int skyTracks   = framecount - waterTracks;

        if (waterTracks < 1)
        {
            LL_WARNS("SETTINGS") << "Missing water track" << LL_ENDL;
            return false;
        }

        if (skyTracks < 1)
        {
            LL_WARNS("SETTINGS") << "Missing sky tracks" << LL_ENDL;
            return false;
        }
        return true;
    }

    bool validateDayCycleFrames(LLSD &value)
    {
        bool hasSky(false);
        bool hasWater(false);

        for (LLSD::map_iterator itf = value.beginMap(); itf != value.endMap(); ++itf)
        {
            LLSD frame = (*itf).second;

            std::string ftype = frame[LLSettingsBase::SETTING_TYPE];
            if (ftype == "sky")
            {
                LLSettingsSky::validation_list_t valid_sky = LLSettingsSky::validationList();
                LLSD res_sky = LLSettingsBase::settingValidation(frame, valid_sky);
                
                if (res_sky["success"].asInteger() == 0)
                {
                    LL_WARNS("SETTINGS") << "Sky setting named '" << (*itf).first << "' validation failed!: " << res_sky << LL_ENDL;
                    LL_WARNS("SETTINGS") << "Sky: " << frame << LL_ENDL;
                    continue;
                }
                hasSky |= true;
            }
            else if (ftype == "water")
            {
                LLSettingsWater::validation_list_t valid_h2o = LLSettingsWater::validationList();
                LLSD res_h2o = LLSettingsBase::settingValidation(frame, valid_h2o);
                if (res_h2o["success"].asInteger() == 0)
                {
                    LL_WARNS("SETTINGS") << "Water setting named '" << (*itf).first << "' validation failed!: " << res_h2o << LL_ENDL;
                    LL_WARNS("SETTINGS") << "Water: " << frame << LL_ENDL;
                    continue;
                }
                hasWater |= true;
            }
            else
            {
                LL_WARNS("SETTINGS") << "Unknown settings block of type '" << ftype << "' named '" << (*itf).first << "'" << LL_ENDL;
                return false;
            }
        }

        if (!hasSky)
        {
            LL_WARNS("SETTINGS") << "No skies defined." << LL_ENDL;
            return false;
        }

        if (!hasWater)
        {
            LL_WARNS("SETTINGS") << "No waters defined." << LL_ENDL;
            return false;
        }

        return true;
    }
}

LLSettingsDay::validation_list_t LLSettingsDay::getValidationList() const
{
    return LLSettingsDay::validationList();
}

LLSettingsDay::validation_list_t LLSettingsDay::validationList()
{
    static validation_list_t validation;

    if (validation.empty())
    {
        validation.push_back(Validator(SETTING_TRACKS, true, LLSD::TypeArray, 
            &validateDayCycleTrack));
        validation.push_back(Validator(SETTING_FRAMES, true, LLSD::TypeMap, 
            &validateDayCycleFrames));
    }

    return validation;
}

LLSettingsDay::CycleTrack_t &LLSettingsDay::getCycleTrack(S32 track)
{
    static CycleTrack_t emptyTrack;
    if (mDayTracks.size() <= track)
        return emptyTrack;

    return mDayTracks[track];
}

//=========================================================================
void LLSettingsDay::startDayCycle()
{
    if (!mInitialized)
    {
        LL_WARNS("DAYCYCLE") << "Attempt to start day cycle on uninitialized object." << LL_ENDL;
        return;
    }
}


void LLSettingsDay::updateSettings()
{
}

//=========================================================================
LLSettingsDay::KeyframeList_t LLSettingsDay::getTrackKeyframes(S32 trackno)
{
    if ((trackno < 0) || (trackno >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt get track (#" << trackno << ") out of range!" << LL_ENDL;
        return KeyframeList_t();
    }

    KeyframeList_t keyframes;
    CycleTrack_t &track = mDayTracks[trackno];

    keyframes.reserve(track.size());

    for (CycleTrack_t::iterator it = track.begin(); it != track.end(); ++it)
    {
        keyframes.push_back((*it).first);
    }

    return keyframes;
}

bool LLSettingsDay::moveTrackKeyframe(S32 trackno, const LLSettingsBase::TrackPosition& old_frame, const LLSettingsBase::TrackPosition& new_frame)
{
    if ((trackno < 0) || (trackno >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt get track (#" << trackno << ") out of range!" << LL_ENDL;
        return false;
    }

    if (old_frame == new_frame)
    {
        return false;
    }

    CycleTrack_t &track = mDayTracks[trackno];
    CycleTrack_t::iterator iter = track.find(old_frame);
    if (iter != track.end())
    {
        /*TODO check that we are not moving too close to another keyframe */
//         CycleTrack_t::value_type existing = getSettingsNearKeyfarme(new_frame, trackno, 2.5f);
//         if ((*iter).first != existing.first)
//         {
//             LL_WARNS("DAYCYCLE") << "Track too close to existing track.  Not moving." << LL_ENDL;
//             return false;
//         }

        LLSettingsBase::ptr_t base = iter->second;
        track.erase(iter);
        track[llclamp(new_frame, 0.0f, 1.0f)] = base;
        track[new_frame] = base;
        return true;
    }

    return false;

}

bool LLSettingsDay::removeTrackKeyframe(S32 trackno, const LLSettingsBase::TrackPosition& frame)
{
    if ((trackno < 0) || (trackno >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt get track (#" << trackno << ") out of range!" << LL_ENDL;
        return false;
    }

    CycleTrack_t &track = mDayTracks[trackno];
    CycleTrack_t::iterator iter = track.find(frame);
    if (iter != track.end())
    {
        LLSettingsBase::ptr_t base = iter->second;
        track.erase(iter);
        return true;
    }

    return false;
}

void LLSettingsDay::setWaterAtKeyframe(const LLSettingsWaterPtr_t &water, const LLSettingsBase::TrackPosition& keyframe)
{
    setSettingsAtKeyframe(water, keyframe, TRACK_WATER);
}

LLSettingsWater::ptr_t LLSettingsDay::getWaterAtKeyframe(const LLSettingsBase::TrackPosition& keyframe) const
{
    LLSettingsBase* p = getSettingsAtKeyframe(keyframe, TRACK_WATER).get();
    return LLSettingsWater::ptr_t((LLSettingsWater*)p);
}

void LLSettingsDay::setSkyAtKeyframe(const LLSettingsSky::ptr_t &sky, const LLSettingsBase::TrackPosition& keyframe, S32 track)
{
    if ((track < 1) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to set sky track (#" << track << ") out of range!" << LL_ENDL;
        return;
    }

    setSettingsAtKeyframe(sky, keyframe, track);
}

LLSettingsSky::ptr_t LLSettingsDay::getSkyAtKeyframe(const LLSettingsBase::TrackPosition& keyframe, S32 track) const
{
    if ((track < 1) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to set sky track (#" << track << ") out of range!" << LL_ENDL;
        return LLSettingsSky::ptr_t();
    }

    return PTR_NAMESPACE::dynamic_pointer_cast<LLSettingsSky>(getSettingsAtKeyframe(keyframe, track));
}

void LLSettingsDay::setSettingsAtKeyframe(const LLSettingsBase::ptr_t &settings, const LLSettingsBase::TrackPosition& keyframe, S32 track)
{
    if ((track < 0) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to set track (#" << track << ") out of range!" << LL_ENDL;
        return;
    }

    std::string type = settings->getSettingsType();
    if ((track == TRACK_WATER) && (type != "water"))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to add frame of type '" << type << "' to water track!" << LL_ENDL;
        llassert(type == "water");
        return;
    }
    else if ((track != TRACK_WATER) && (type != "sky"))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to add frame of type '" << type << "' to sky track!" << LL_ENDL;
        llassert(type == "sky");
        return;
    }

    mDayTracks[track][llclamp(keyframe, 0.0f, 1.0f)] = settings;
    setDirtyFlag(true);
}

LLSettingsBase::ptr_t LLSettingsDay::getSettingsAtKeyframe(const LLSettingsBase::TrackPosition& keyframe, S32 track) const
{
    if ((track < 0) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to set sky track (#" << track << ") out of range!" << LL_ENDL;
        return LLSettingsBase::ptr_t();
    }

    // todo: better way to identify keyframes?
    CycleTrack_t::const_iterator iter = mDayTracks[track].find(keyframe);
    if (iter != mDayTracks[track].end())
    {
        return iter->second;
    }

    return LLSettingsBase::ptr_t();
}

LLSettingsDay::CycleTrack_t::value_type LLSettingsDay::getSettingsNearKeyfarme(const LLSettingsBase::TrackPosition &keyframe, S32 track, F32 fudge) const
{
    if ((track < 0) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to get track (#" << track << ") out of range!" << LL_ENDL;
        return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
    }

    if (mDayTracks[track].empty())
    {
        LL_INFOS("DAYCYCLE") << "Empty track" << LL_ENDL;
        return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
    }

    TrackPosition startframe(keyframe - fudge);
    if (startframe < 0.0f)
        startframe = 1.0f + startframe;

    CycleTrack_t::iterator it = get_wrapping_atafter(const_cast<CycleTrack_t &>(mDayTracks[track]), startframe);

    F32 dist = get_wrapping_distance(startframe, (*it).first);

    LL_WARNS("LAPRAS") << "[" << startframe << " ... " << keyframe << " -> " << (*it).first << "@" << dist << LL_ENDL;


    if (dist <= (fudge * 2.0f))
        return (*it);

    return CycleTrack_t::value_type(TrackPosition(INVALID_TRACKPOS), LLSettingsBase::ptr_t());
}

void LLSettingsDay::clearTrack(S32 track)
{
    if ((track < 0) || (track >= TRACK_MAX))
    {
        LL_WARNS("DAYCYCLE") << "Attempt to clear track (#" << track << ") out of range!" << LL_ENDL;
        return;
    }

    mDayTracks[track].clear();
}

LLSettingsBase::TrackPosition LLSettingsDay::getUpperBoundFrame(S32 track, const LLSettingsBase::TrackPosition& keyframe)
{
    return get_wrapping_atafter(mDayTracks[track], keyframe)->first;
}

LLSettingsBase::TrackPosition LLSettingsDay::getLowerBoundFrame(S32 track, const LLSettingsBase::TrackPosition& keyframe)
{
    return get_wrapping_atbefore(mDayTracks[track], keyframe)->first;
}

LLSettingsDay::TrackBound_t LLSettingsDay::getBoundingEntries(LLSettingsDay::CycleTrack_t &track, const LLSettingsBase::TrackPosition& keyframe)
{
    return TrackBound_t(get_wrapping_atbefore(track, keyframe), get_wrapping_atafter(track, keyframe));
}

LLUUID LLSettingsDay::GetDefaultAssetId()
{
    return DEFAULT_ASSET_ID;
}

//=========================================================================