-
Notifications
You must be signed in to change notification settings - Fork 2.2k
/
sceDisplay.cpp
1273 lines (1081 loc) · 41.9 KB
/
sceDisplay.cpp
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
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright (c) 2012- PPSSPP Project.
// 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, version 2.0 or later versions.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include <vector>
#include <map>
#include <cmath>
#include <algorithm>
// TODO: Move this somewhere else, cleanup.
#ifndef _WIN32
#include <unistd.h>
#include <sys/time.h>
#endif
// TODO: Move the relevant parts into common. Don't want the core
// to be dependent on "native", I think. Or maybe should get rid of common
// and move everything into native...
#include "base/logging.h"
#include "base/timeutil.h"
#include "i18n/i18n.h"
#include "profiler/profiler.h"
#include "gfx_es2/gpu_features.h"
#include "Common/ChunkFile.h"
#include "Core/Config.h"
#include "Core/CoreTiming.h"
#include "Core/CoreParameter.h"
#include "Core/Host.h"
#include "Core/Reporting.h"
#include "Core/Core.h"
#include "Core/System.h"
#include "Core/HLE/HLE.h"
#include "Core/HLE/FunctionWrappers.h"
#include "Core/HLE/sceDisplay.h"
#include "Core/HLE/sceKernel.h"
#include "Core/HLE/sceKernelThread.h"
#include "Core/HLE/sceKernelInterrupt.h"
#include "Core/Util/PPGeDraw.h"
#include "GPU/GPU.h"
#include "GPU/GPUState.h"
#include "GPU/GPUInterface.h"
#include "GPU/Common/FramebufferCommon.h"
#include "GPU/Common/PostShader.h"
#include "GPU/Debugger/Record.h"
struct FrameBufferState {
u32 topaddr;
GEBufferFormat fmt;
int stride;
};
struct WaitVBlankInfo {
WaitVBlankInfo(u32 tid) : threadID(tid), vcountUnblock(1) {}
WaitVBlankInfo(u32 tid, int vcount) : threadID(tid), vcountUnblock(vcount) {}
SceUID threadID;
// Number of vcounts to block for.
int vcountUnblock;
void DoState(PointerWrap &p) {
auto s = p.Section("WaitVBlankInfo", 1);
if (!s)
return;
p.Do(threadID);
p.Do(vcountUnblock);
}
};
// STATE BEGIN
static FrameBufferState framebuf;
static FrameBufferState latchedFramebuf;
static bool framebufIsLatched;
static int enterVblankEvent = -1;
static int leaveVblankEvent = -1;
static int afterFlipEvent = -1;
static int lagSyncEvent = -1;
static double lastLagSync = 0.0;
static bool lagSyncScheduled = false;
// hCount is computed now.
static int vCount;
// The "AccumulatedHcount" can be adjusted, this is the base.
static u32 hCountBase;
static int isVblank;
static int numSkippedFrames;
static bool hasSetMode;
static int resumeMode;
static int holdMode;
static int brightnessLevel;
static int mode;
static int width;
static int height;
static bool wasPaused;
static bool flippedThisFrame;
// 1.001f to compensate for the classic 59.94 NTSC framerate that the PSP seems to have.
static const double timePerVblank = 1.001f / 60.0f;
// Don't include this in the state, time increases regardless of state.
static double curFrameTime;
static double lastFrameTime;
static double nextFrameTime;
static int numVBlanks;
static int numVBlanksSinceFlip;
static u64 frameStartTicks;
const int hCountPerVblank = 286;
const int PSP_DISPLAY_MODE_LCD = 0;
std::vector<WaitVBlankInfo> vblankWaitingThreads;
// Key is the callback id it was for, or if no callback, the thread id.
// Value is the goal vcount number (in case the callback takes >= 1 vcount to return.)
std::map<SceUID, int> vblankPausedWaits;
// STATE END
// Called when vblank happens (like an internal interrupt.) Not part of state, should be static.
std::vector<VblankCallback> vblankListeners;
// The vblank period is 731.5 us (0.7315 ms)
const double vblankMs = 0.7315;
// These are guesses based on tests.
const double vsyncStartMs = 0.5925;
const double vsyncEndMs = 0.7265;
const double frameMs = 1001.0 / 60.0;
enum {
PSP_DISPLAY_SETBUF_IMMEDIATE = 0,
PSP_DISPLAY_SETBUF_NEXTFRAME = 1
};
static int lastFpsFrame = 0;
static double lastFpsTime = 0.0;
static double fps = 0.0;
static double fpsHistory[120];
static int fpsHistorySize = (int)ARRAY_SIZE(fpsHistory);
static int fpsHistoryPos = 0;
static int fpsHistoryValid = 0;
static double frameTimeHistory[600];
static double frameSleepHistory[600];
static const int frameTimeHistorySize = (int)ARRAY_SIZE(frameTimeHistory);
static int frameTimeHistoryPos = 0;
static int frameTimeHistoryValid = 0;
static double lastFrameTimeHistory = 0.0;
static double monitorFpsUntil = 0.0;
static int lastNumFlips = 0;
static float flips = 0.0f;
static int actualFlips = 0; // taking frameskip into account
static int lastActualFlips = 0;
static float actualFps = 0;
// For the "max 60 fps" setting.
static int lastFlipsTooFrequent = 0;
static u64 lastFlipCycles = 0;
static u64 nextFlipCycles = 0;
void hleEnterVblank(u64 userdata, int cyclesLate);
void hleLeaveVblank(u64 userdata, int cyclesLate);
void hleAfterFlip(u64 userdata, int cyclesLate);
void hleLagSync(u64 userdata, int cyclesLate);
void __DisplayVblankBeginCallback(SceUID threadID, SceUID prevCallbackId);
void __DisplayVblankEndCallback(SceUID threadID, SceUID prevCallbackId);
int __DisplayGetFlipCount() { return actualFlips; }
int __DisplayGetVCount() { return vCount; }
int __DisplayGetNumVblanks() { return numVBlanks; }
void __DisplayFlip(int cyclesLate);
static void ScheduleLagSync(int over = 0) {
lagSyncScheduled = g_Config.bForceLagSync;
if (lagSyncScheduled) {
// Reset over if it became too high, such as after pausing or initial loading.
// There's no real sense in it being more than 1/60th of a second.
if (over > 1000000 / 60) {
over = 0;
}
CoreTiming::ScheduleEvent(usToCycles(1000 + over), lagSyncEvent, 0);
lastLagSync = real_time_now();
}
}
void __DisplayInit() {
hasSetMode = false;
mode = 0;
resumeMode = 0;
holdMode = 0;
brightnessLevel = 84;
width = 480;
height = 272;
numSkippedFrames = 0;
numVBlanks = 0;
numVBlanksSinceFlip = 0;
flippedThisFrame = false;
framebufIsLatched = false;
framebuf.topaddr = 0x04000000;
framebuf.fmt = GE_FORMAT_8888;
framebuf.stride = 512;
memcpy(&latchedFramebuf, &framebuf, sizeof(latchedFramebuf));
lastFlipsTooFrequent = 0;
lastFlipCycles = 0;
nextFlipCycles = 0;
wasPaused = false;
enterVblankEvent = CoreTiming::RegisterEvent("EnterVBlank", &hleEnterVblank);
leaveVblankEvent = CoreTiming::RegisterEvent("LeaveVBlank", &hleLeaveVblank);
afterFlipEvent = CoreTiming::RegisterEvent("AfterFlip", &hleAfterFlip);
lagSyncEvent = CoreTiming::RegisterEvent("LagSync", &hleLagSync);
ScheduleLagSync();
CoreTiming::ScheduleEvent(msToCycles(frameMs - vblankMs), enterVblankEvent, 0);
isVblank = 0;
frameStartTicks = 0;
vCount = 0;
hCountBase = 0;
curFrameTime = 0.0;
nextFrameTime = 0.0;
lastFrameTime = 0.0;
flips = 0;
fps = 0.0;
actualFlips = 0;
lastActualFlips = 0;
lastNumFlips = 0;
fpsHistoryValid = 0;
fpsHistoryPos = 0;
frameTimeHistoryValid = 0;
frameTimeHistoryPos = 0;
lastFrameTimeHistory = 0.0;
__KernelRegisterWaitTypeFuncs(WAITTYPE_VBLANK, __DisplayVblankBeginCallback, __DisplayVblankEndCallback);
}
struct GPUStatistics_v0 {
int firstInts[11];
double msProcessingDisplayLists;
int moreInts[15];
};
void __DisplayDoState(PointerWrap &p) {
auto s = p.Section("sceDisplay", 1, 7);
if (!s)
return;
p.Do(framebuf);
p.Do(latchedFramebuf);
p.Do(framebufIsLatched);
p.Do(frameStartTicks);
p.Do(vCount);
if (s <= 2) {
double oldHCountBase;
p.Do(oldHCountBase);
hCountBase = (int) oldHCountBase;
} else {
p.Do(hCountBase);
}
p.Do(isVblank);
p.Do(hasSetMode);
p.Do(mode);
p.Do(resumeMode);
p.Do(holdMode);
if (s >= 4) {
p.Do(brightnessLevel);
}
p.Do(width);
p.Do(height);
WaitVBlankInfo wvi(0);
p.Do(vblankWaitingThreads, wvi);
p.Do(vblankPausedWaits);
p.Do(enterVblankEvent);
CoreTiming::RestoreRegisterEvent(enterVblankEvent, "EnterVBlank", &hleEnterVblank);
p.Do(leaveVblankEvent);
CoreTiming::RestoreRegisterEvent(leaveVblankEvent, "LeaveVBlank", &hleLeaveVblank);
p.Do(afterFlipEvent);
CoreTiming::RestoreRegisterEvent(afterFlipEvent, "AfterFlip", &hleAfterFlip);
if (s >= 5) {
p.Do(lagSyncEvent);
p.Do(lagSyncScheduled);
CoreTiming::RestoreRegisterEvent(lagSyncEvent, "LagSync", &hleLagSync);
lastLagSync = real_time_now();
if (lagSyncScheduled != g_Config.bForceLagSync) {
ScheduleLagSync();
}
} else {
lagSyncEvent = CoreTiming::RegisterEvent("LagSync", &hleLagSync);
ScheduleLagSync();
}
p.Do(gstate);
// TODO: GPU stuff is really not the responsibility of sceDisplay.
// Display just displays the buffers the GPU has drawn, they are really completely distinct.
// Maybe a bit tricky to move at this point, though...
gstate_c.DoState(p);
if (s < 2) {
// This shouldn't have been savestated anyway, but it was.
// It's unlikely to overlap with the first value in gpuStats.
p.ExpectVoid(&gl_extensions.gpuVendor, sizeof(gl_extensions.gpuVendor));
}
if (s < 6) {
GPUStatistics_v0 oldStats;
p.Do(oldStats);
}
if (s < 7) {
u64 now = CoreTiming::GetTicks();
lastFlipCycles = now;
nextFlipCycles = now;
} else {
p.Do(lastFlipCycles);
p.Do(nextFlipCycles);
}
gpu->DoState(p);
if (p.mode == p.MODE_READ) {
gpu->ReapplyGfxState();
if (hasSetMode) {
gpu->InitClear();
}
gpu->SetDisplayFramebuffer(framebuf.topaddr, framebuf.stride, framebuf.fmt);
}
}
void __DisplayShutdown() {
vblankListeners.clear();
vblankWaitingThreads.clear();
}
void __DisplayListenVblank(VblankCallback callback) {
vblankListeners.push_back(callback);
}
static void __DisplayFireVblank() {
for (std::vector<VblankCallback>::iterator iter = vblankListeners.begin(), end = vblankListeners.end(); iter != end; ++iter) {
VblankCallback cb = *iter;
cb();
}
}
void __DisplayVblankBeginCallback(SceUID threadID, SceUID prevCallbackId) {
SceUID pauseKey = prevCallbackId == 0 ? threadID : prevCallbackId;
// This means two callbacks in a row. PSP crashes if the same callback waits inside itself (may need more testing.)
// TODO: Handle this better?
if (vblankPausedWaits.find(pauseKey) != vblankPausedWaits.end()) {
return;
}
WaitVBlankInfo waitData(0);
for (size_t i = 0; i < vblankWaitingThreads.size(); i++) {
WaitVBlankInfo *t = &vblankWaitingThreads[i];
if (t->threadID == threadID) {
waitData = *t;
vblankWaitingThreads.erase(vblankWaitingThreads.begin() + i);
break;
}
}
if (waitData.threadID != threadID) {
WARN_LOG_REPORT(SCEDISPLAY, "sceDisplayWaitVblankCB: could not find waiting thread info.");
return;
}
vblankPausedWaits[pauseKey] = vCount + waitData.vcountUnblock;
DEBUG_LOG(SCEDISPLAY, "sceDisplayWaitVblankCB: Suspending vblank wait for callback");
}
void __DisplayVblankEndCallback(SceUID threadID, SceUID prevCallbackId) {
SceUID pauseKey = prevCallbackId == 0 ? threadID : prevCallbackId;
// Probably should not be possible.
if (vblankPausedWaits.find(pauseKey) == vblankPausedWaits.end()) {
__KernelResumeThreadFromWait(threadID, 0);
return;
}
int vcountUnblock = vblankPausedWaits[pauseKey];
vblankPausedWaits.erase(pauseKey);
if (vcountUnblock <= vCount) {
__KernelResumeThreadFromWait(threadID, 0);
return;
}
// Still have to wait a bit longer.
vblankWaitingThreads.push_back(WaitVBlankInfo(__KernelGetCurThread(), vcountUnblock - vCount));
DEBUG_LOG(SCEDISPLAY, "sceDisplayWaitVblankCB: Resuming vblank wait from callback");
}
// TODO: Also average actualFps
void __DisplayGetFPS(float *out_vps, float *out_fps, float *out_actual_fps) {
*out_vps = fps;
*out_fps = flips;
*out_actual_fps = actualFps;
}
void __DisplayGetVPS(float *out_vps) {
*out_vps = fps;
}
void __DisplayGetAveragedFPS(float *out_vps, float *out_fps) {
float avg = 0.0;
if (fpsHistoryValid > 0) {
for (int i = 0; i < fpsHistoryValid; ++i) {
avg += fpsHistory[i];
}
avg /= (double) fpsHistoryValid;
}
*out_vps = *out_fps = avg;
}
static bool IsRunningSlow() {
// Allow for some startup turbulence for 8 seconds before assuming things are bad.
if (fpsHistoryValid >= 8) {
// Look at only the last 15 samples (starting at the 14th sample behind current.)
int rangeStart = fpsHistoryPos - std::min(fpsHistoryValid, 14);
double best = 0.0;
for (int i = rangeStart; i <= fpsHistoryPos; ++i) {
// rangeStart may have been negative if near a wrap around.
int index = (fpsHistorySize + i) % fpsHistorySize;
best = std::max(fpsHistory[index], best);
}
return best < System_GetPropertyFloat(SYSPROP_DISPLAY_REFRESH_RATE) * 0.999;
}
return false;
}
static void CalculateFPS() {
time_update();
double now = time_now_d();
if (now >= lastFpsTime + 1.0) {
double frames = (numVBlanks - lastFpsFrame);
actualFps = (actualFlips - lastActualFlips);
fps = frames / (now - lastFpsTime);
flips = 60.0 * (double) (gpuStats.numFlips - lastNumFlips) / frames;
lastFpsFrame = numVBlanks;
lastNumFlips = gpuStats.numFlips;
lastActualFlips = actualFlips;
lastFpsTime = now;
fpsHistory[fpsHistoryPos++] = fps;
fpsHistoryPos = fpsHistoryPos % fpsHistorySize;
if (fpsHistoryValid < fpsHistorySize) {
++fpsHistoryValid;
}
}
if (g_Config.bDrawFrameGraph) {
frameTimeHistory[frameTimeHistoryPos++] = now - lastFrameTimeHistory;
lastFrameTimeHistory = now;
frameTimeHistoryPos = frameTimeHistoryPos % frameTimeHistorySize;
if (frameTimeHistoryValid < frameTimeHistorySize) {
++frameTimeHistoryValid;
}
frameSleepHistory[frameTimeHistoryPos] = 0.0;
}
}
double *__DisplayGetFrameTimes(int *out_valid, int *out_pos, double **out_sleep) {
*out_valid = frameTimeHistoryValid;
*out_pos = frameTimeHistoryPos;
*out_sleep = frameSleepHistory;
return frameTimeHistory;
}
void __DisplayGetDebugStats(char *stats, size_t bufsize) {
char statbuf[4096];
gpu->GetStats(statbuf, sizeof(statbuf));
snprintf(stats, bufsize,
"Kernel processing time: %0.2f ms\n"
"Slowest syscall: %s : %0.2f ms\n"
"Most active syscall: %s : %0.2f ms\n%s",
kernelStats.msInSyscalls * 1000.0f,
kernelStats.slowestSyscallName ? kernelStats.slowestSyscallName : "(none)",
kernelStats.slowestSyscallTime * 1000.0f,
kernelStats.summedSlowestSyscallName ? kernelStats.summedSlowestSyscallName : "(none)",
kernelStats.summedSlowestSyscallTime * 1000.0f,
statbuf);
}
void __DisplaySetWasPaused() {
wasPaused = true;
}
static bool FrameTimingThrottled() {
if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM1 && g_Config.iFpsLimit1 == 0) {
return false;
}
if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM2 && g_Config.iFpsLimit2 == 0) {
return false;
}
return !PSP_CoreParameter().unthrottle;
}
static void DoFrameDropLogging(float scaledTimestep) {
if (lastFrameTime != 0.0 && !wasPaused && lastFrameTime + scaledTimestep < curFrameTime) {
const double actualTimestep = curFrameTime - lastFrameTime;
char stats[4096];
__DisplayGetDebugStats(stats, sizeof(stats));
NOTICE_LOG(SCEDISPLAY, "Dropping frames - budget = %.2fms / %.1ffps, actual = %.2fms (+%.2fms) / %.1ffps\n%s", scaledTimestep * 1000.0, 1.0 / scaledTimestep, actualTimestep * 1000.0, (actualTimestep - scaledTimestep) * 1000.0, 1.0 / actualTimestep, stats);
}
}
static int CalculateFrameSkip() {
int frameSkipNum;
if (g_Config.iFrameSkipType == 1) {
// Calculate the frames to skip dynamically using the set percentage of the current fps
frameSkipNum = ceil( flips * (static_cast<double>(g_Config.iFrameSkip) / 100.00) );
} else {
// Use the set number of frames to skip
frameSkipNum = g_Config.iFrameSkip;
}
return frameSkipNum;
}
// Let's collect all the throttling and frameskipping logic here.
static void DoFrameTiming(bool &throttle, bool &skipFrame, float timestep) {
PROFILE_THIS_SCOPE("timing");
FPSLimit fpsLimiter = PSP_CoreParameter().fpsLimit;
int fpsLimit = 60;
if (fpsLimiter != FPSLimit::NORMAL)
fpsLimit = fpsLimiter == FPSLimit::CUSTOM1 ? g_Config.iFpsLimit1 : g_Config.iFpsLimit2;
throttle = FrameTimingThrottled();
skipFrame = false;
// Check if the frameskipping code should be enabled. If neither throttling or frameskipping is on,
// we have nothing to do here.
bool doFrameSkip = g_Config.iFrameSkip != 0;
bool unthrottleNeedsSkip = g_Config.bFrameSkipUnthrottle;
if (g_Config.bVSync && GetGPUBackend() == GPUBackend::VULKAN) {
// Vulkan doesn't support the interval setting, so we force frameskip.
unthrottleNeedsSkip = true;
// If it's not a clean multiple of 60, we may need frameskip to achieve it.
if (fpsLimit == 0 || (fpsLimit >= 0 && fpsLimit != 15 && fpsLimit != 30 && fpsLimit != 60)) {
doFrameSkip = true;
}
}
if (!throttle && unthrottleNeedsSkip) {
doFrameSkip = true;
skipFrame = true;
if (numSkippedFrames >= 7) {
skipFrame = false;
}
return;
}
if (!throttle && !doFrameSkip)
return;
time_update();
float scaledTimestep = timestep;
if (fpsLimit > 0 && fpsLimit != 60) {
scaledTimestep *= 60.0f / fpsLimit;
}
if (lastFrameTime == 0.0 || wasPaused) {
nextFrameTime = time_now_d() + scaledTimestep;
} else {
// Advance lastFrameTime by a constant amount each frame,
// but don't let it get too far behind as things can get very jumpy.
const double maxFallBehindFrames = 5.5;
nextFrameTime = std::max(lastFrameTime + scaledTimestep, time_now_d() - maxFallBehindFrames * scaledTimestep);
}
curFrameTime = time_now_d();
if (g_Config.bLogFrameDrops) {
DoFrameDropLogging(scaledTimestep);
}
// Auto-frameskip automatically if speed limit is set differently than the default.
bool useAutoFrameskip = g_Config.bAutoFrameSkip && g_Config.iRenderingMode != FB_NON_BUFFERED_MODE;
bool forceFrameskip = fpsLimit > 60 && unthrottleNeedsSkip;
int frameSkipNum = CalculateFrameSkip();
if (g_Config.bAutoFrameSkip || forceFrameskip) {
// autoframeskip
// Argh, we are falling behind! Let's skip a frame and see if we catch up.
if (curFrameTime > nextFrameTime && doFrameSkip) {
skipFrame = true;
if (forceFrameskip) {
throttle = false;
}
}
} else if (frameSkipNum >= 1) {
// fixed frameskip
if (numSkippedFrames >= frameSkipNum)
skipFrame = false;
else
skipFrame = true;
}
if (curFrameTime < nextFrameTime && throttle) {
// If time gap is huge just jump (somebody unthrottled)
if (nextFrameTime - curFrameTime > 2*scaledTimestep) {
nextFrameTime = curFrameTime;
} else {
// Wait until we've caught up.
while (time_now_d() < nextFrameTime) {
#ifdef _WIN32
sleep_ms(1); // Sleep for 1ms on this thread
#else
const double left = nextFrameTime - curFrameTime;
usleep((long)(left * 1000000));
#endif
time_update();
}
}
curFrameTime = time_now_d();
}
lastFrameTime = nextFrameTime;
wasPaused = false;
}
static void DoFrameIdleTiming() {
PROFILE_THIS_SCOPE("timing");
if (!FrameTimingThrottled() || !g_Config.bEnableSound || wasPaused) {
return;
}
time_update();
double before = time_now_d();
double dist = before - lastFrameTime;
// Ignore if the distance is just crazy. May mean wrap or pause.
if (dist < 0.0 || dist >= 15 * timePerVblank) {
return;
}
float scaledVblank = timePerVblank;
if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM1 && g_Config.iFpsLimit1 > 0) {
// 0 is handled in FrameTimingThrottled().
scaledVblank *= 60.0f / g_Config.iFpsLimit1;
} else if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM2 && g_Config.iFpsLimit2 > 0) {
scaledVblank *= 60.0f / g_Config.iFpsLimit2;
}
// If we have over at least a vblank of spare time, maintain at least 30fps in delay.
// This prevents fast forward during loading screens.
// Give a little extra wiggle room in case the next vblank does more work.
const double goal = lastFrameTime + (numVBlanksSinceFlip - 1) * scaledVblank - 0.001;
if (numVBlanksSinceFlip >= 2 && before < goal) {
while (time_now_d() < goal) {
#ifdef _WIN32
sleep_ms(1);
#else
const double left = goal - time_now_d();
usleep((long)(left * 1000000));
#endif
time_update();
}
if (g_Config.bDrawFrameGraph) {
frameSleepHistory[frameTimeHistoryPos] += time_now_d() - before;
}
}
}
void hleEnterVblank(u64 userdata, int cyclesLate) {
int vbCount = userdata;
VERBOSE_LOG(SCEDISPLAY, "Enter VBlank %i", vbCount);
isVblank = 1;
vCount++; // vCount increases at each VBLANK.
hCountBase += hCountPerVblank; // This is the "accumulated" hcount base.
if (hCountBase > 0x7FFFFFFF) {
hCountBase -= 0x80000000;
}
frameStartTicks = CoreTiming::GetTicks();
CoreTiming::ScheduleEvent(msToCycles(vblankMs) - cyclesLate, leaveVblankEvent, vbCount + 1);
// Trigger VBlank interrupt handlers.
__TriggerInterrupt(PSP_INTR_IMMEDIATE | PSP_INTR_ONLY_IF_ENABLED | PSP_INTR_ALWAYS_RESCHED, PSP_VBLANK_INTR, PSP_INTR_SUB_ALL);
// Wake up threads waiting for VBlank
u32 error;
bool wokeThreads = false;
for (size_t i = 0; i < vblankWaitingThreads.size(); i++) {
if (--vblankWaitingThreads[i].vcountUnblock == 0) {
// Only wake it if it wasn't already released by someone else.
SceUID waitID = __KernelGetWaitID(vblankWaitingThreads[i].threadID, WAITTYPE_VBLANK, error);
if (waitID == 1) {
__KernelResumeThreadFromWait(vblankWaitingThreads[i].threadID, 0);
wokeThreads = true;
}
vblankWaitingThreads.erase(vblankWaitingThreads.begin() + i--);
}
}
if (wokeThreads) {
__KernelReSchedule("entered vblank");
}
numVBlanks++;
numVBlanksSinceFlip++;
// TODO: Should this be done here or in hleLeaveVblank?
if (framebufIsLatched) {
DEBUG_LOG(SCEDISPLAY, "Setting latched framebuffer %08x (prev: %08x)", latchedFramebuf.topaddr, framebuf.topaddr);
framebuf = latchedFramebuf;
framebufIsLatched = false;
gpu->SetDisplayFramebuffer(framebuf.topaddr, framebuf.stride, framebuf.fmt);
__DisplayFlip(cyclesLate);
} else if (!flippedThisFrame) {
// Gotta flip even if sceDisplaySetFramebuf was not called.
__DisplayFlip(cyclesLate);
}
}
void __DisplayFlip(int cyclesLate) {
flippedThisFrame = true;
// We flip only if the framebuffer was dirty. This eliminates flicker when using
// non-buffered rendering. The interaction with frame skipping seems to need
// some work.
// But, let's flip at least once every 10 vblanks, to update fps, etc.
const bool noRecentFlip = g_Config.iRenderingMode != FB_NON_BUFFERED_MODE && numVBlanksSinceFlip >= 10;
// Also let's always flip for animated shaders.
const ShaderInfo *shaderInfo = g_Config.sPostShaderName == "Off" ? nullptr : GetPostShaderInfo(g_Config.sPostShaderName);
bool postEffectRequiresFlip = false;
bool duplicateFrames = g_Config.bRenderDuplicateFrames && g_Config.iFrameSkip == 0;
// postEffectRequiresFlip is not compatible with frameskip unthrottling, see #12325.
if (g_Config.iRenderingMode != FB_NON_BUFFERED_MODE && !(g_Config.bFrameSkipUnthrottle && !FrameTimingThrottled())) {
if (shaderInfo) {
postEffectRequiresFlip = (shaderInfo->requires60fps || duplicateFrames);
} else {
postEffectRequiresFlip = duplicateFrames;
}
}
const bool fbDirty = gpu->FramebufferDirty();
if (fbDirty || noRecentFlip || postEffectRequiresFlip) {
int frameSleepPos = frameTimeHistoryPos;
CalculateFPS();
// Let the user know if we're running slow, so they know to adjust settings.
// Sometimes users just think the sound emulation is broken.
static bool hasNotifiedSlow = false;
if (!g_Config.bHideSlowWarnings && !hasNotifiedSlow && PSP_CoreParameter().fpsLimit == FPSLimit::NORMAL && IsRunningSlow()) {
#ifndef _DEBUG
auto err = GetI18NCategory("Error");
if (g_Config.bSoftwareRendering) {
host->NotifyUserMessage(err->T("Running slow: Try turning off Software Rendering"), 6.0f, 0xFF30D0D0);
} else {
host->NotifyUserMessage(err->T("Running slow: try frameskip, sound is choppy when slow"), 6.0f, 0xFF30D0D0);
}
#endif
hasNotifiedSlow = true;
}
// Setting CORE_NEXTFRAME causes a swap.
const bool fbReallyDirty = gpu->FramebufferReallyDirty();
if (fbReallyDirty || noRecentFlip || postEffectRequiresFlip) {
// Check first though, might've just quit / been paused.
if (Core_NextFrame()) {
gpu->CopyDisplayToOutput(fbReallyDirty);
if (fbReallyDirty) {
actualFlips++;
}
}
}
if (fbDirty) {
gpuStats.numFlips++;
}
bool throttle, skipFrame;
DoFrameTiming(throttle, skipFrame, (float)numVBlanksSinceFlip * timePerVblank);
int maxFrameskip = 8;
int frameSkipNum = CalculateFrameSkip();
if (throttle) {
// 4 here means 1 drawn, 4 skipped - so 12 fps minimum.
maxFrameskip = frameSkipNum;
}
if (numSkippedFrames >= maxFrameskip || GPURecord::IsActivePending()) {
skipFrame = false;
}
if (skipFrame) {
gstate_c.skipDrawReason |= SKIPDRAW_SKIPFRAME;
numSkippedFrames++;
} else {
gstate_c.skipDrawReason &= ~SKIPDRAW_SKIPFRAME;
numSkippedFrames = 0;
}
// Returning here with coreState == CORE_NEXTFRAME causes a buffer flip to happen (next frame).
// Right after, we regain control for a little bit in hleAfterFlip. I think that's a great
// place to do housekeeping.
CoreTiming::ScheduleEvent(0 - cyclesLate, afterFlipEvent, 0);
numVBlanksSinceFlip = 0;
if (g_Config.bDrawFrameGraph) {
// Track how long we sleep (whether vsync or sleep_ms.)
frameSleepHistory[frameSleepPos] += real_time_now() - lastFrameTimeHistory;
}
} else {
// Okay, there's no new frame to draw. But audio may be playing, so we need to time still.
DoFrameIdleTiming();
}
}
void hleAfterFlip(u64 userdata, int cyclesLate) {
gpu->BeginFrame(); // doesn't really matter if begin or end of frame.
PPGeNotifyFrame();
// This seems like as good a time as any to check if the config changed.
if (lagSyncScheduled != g_Config.bForceLagSync) {
ScheduleLagSync();
}
}
void hleLeaveVblank(u64 userdata, int cyclesLate) {
isVblank = 0;
flippedThisFrame = false;
VERBOSE_LOG(SCEDISPLAY,"Leave VBlank %i", (int)userdata - 1);
CoreTiming::ScheduleEvent(msToCycles(frameMs - vblankMs) - cyclesLate, enterVblankEvent, userdata);
// Fire the vblank listeners after the vblank completes.
__DisplayFireVblank();
}
void hleLagSync(u64 userdata, int cyclesLate) {
// The goal here is to prevent network, audio, and input lag from the real world.
// Our normal timing is very "stop and go". This is efficient, but causes real world lag.
// This event (optionally) runs every 1ms to sync with the real world.
PROFILE_THIS_SCOPE("timing");
if (!FrameTimingThrottled()) {
lagSyncScheduled = false;
return;
}
float scale = 1.0f;
if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM1 && g_Config.iFpsLimit1 > 0) {
// 0 is handled in FrameTimingThrottled().
scale = 60.0f / g_Config.iFpsLimit1;
} else if (PSP_CoreParameter().fpsLimit == FPSLimit::CUSTOM2 && g_Config.iFpsLimit2 > 0) {
scale = 60.0f / g_Config.iFpsLimit2;
}
const double goal = lastLagSync + (scale / 1000.0f);
time_update();
double before = time_now_d();
// Don't lag too long ever, if they leave it paused.
while (time_now_d() < goal && goal < time_now_d() + 0.01) {
#ifndef _WIN32
const double left = goal - time_now_d();
usleep((long)(left * 1000000));
#endif
time_update();
}
const int emuOver = (int)cyclesToUs(cyclesLate);
const int over = (int)((time_now_d() - goal) * 1000000);
ScheduleLagSync(over - emuOver);
if (g_Config.bDrawFrameGraph) {
frameSleepHistory[frameTimeHistoryPos] += time_now_d() - before;
}
}
static u32 sceDisplayIsVblank() {
return hleLogSuccessI(SCEDISPLAY, isVblank);
}
static int DisplayWaitForVblanks(const char *reason, int vblanks, bool callbacks = false) {
const s64 ticksIntoFrame = CoreTiming::GetTicks() - frameStartTicks;
const s64 cyclesToNextVblank = msToCycles(frameMs) - ticksIntoFrame;
// These syscalls take about 115 us, so if the next vblank is before then, we're waiting extra.
// At least, on real firmware a wait >= 16500 into the frame will wait two.
if (cyclesToNextVblank <= usToCycles(115)) {
++vblanks;
}
vblankWaitingThreads.push_back(WaitVBlankInfo(__KernelGetCurThread(), vblanks));
__KernelWaitCurThread(WAITTYPE_VBLANK, 1, 0, 0, callbacks, reason);
return hleLogSuccessVerboseI(SCEDISPLAY, 0, "waiting for %d vblanks", vblanks);
}
static u32 sceDisplaySetMode(int displayMode, int displayWidth, int displayHeight) {
if (displayMode != PSP_DISPLAY_MODE_LCD || displayWidth != 480 || displayHeight != 272) {
WARN_LOG_REPORT(SCEDISPLAY, "Video out requested, not supported: mode=%d size=%d,%d", displayMode, displayWidth, displayHeight);
}
if (displayMode != PSP_DISPLAY_MODE_LCD) {
return hleLogWarning(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_MODE, "invalid mode");
}
if (displayWidth != 480 || displayHeight != 272) {
return hleLogWarning(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_SIZE, "invalid size");
}
if (!hasSetMode) {
gpu->InitClear();
hasSetMode = true;
}
mode = displayMode;
width = displayWidth;
height = displayHeight;
hleLogSuccessI(SCEDISPLAY, 0);
// On success, this implicitly waits for a vblank start.
return DisplayWaitForVblanks("display mode", 1);
}
void __DisplaySetFramebuf(u32 topaddr, int linesize, int pixelFormat, int sync) {
FrameBufferState fbstate = {0};
fbstate.topaddr = topaddr;
fbstate.fmt = (GEBufferFormat)pixelFormat;
fbstate.stride = linesize;
if (sync == PSP_DISPLAY_SETBUF_IMMEDIATE) {
// Write immediately to the current framebuffer parameters.
framebuf = fbstate;
// Also update latchedFramebuf for any sceDisplayGetFramebuf() after this.
latchedFramebuf = fbstate;
gpu->SetDisplayFramebuffer(framebuf.topaddr, framebuf.stride, framebuf.fmt);
// IMMEDIATE means that the buffer is fine. We can just flip immediately.
// Doing it in non-buffered though creates problems (black screen) on occasion though
// so let's not.
if (!flippedThisFrame && g_Config.iRenderingMode != FB_NON_BUFFERED_MODE)
__DisplayFlip(0);
} else {
// Delay the write until vblank
latchedFramebuf = fbstate;
framebufIsLatched = true;
// If we update the format or stride, this affects the current framebuf immediately.
framebuf.fmt = latchedFramebuf.fmt;
framebuf.stride = latchedFramebuf.stride;
}
}
// Some games (GTA) never call this during gameplay, so bad place to put a framerate counter.
u32 sceDisplaySetFramebuf(u32 topaddr, int linesize, int pixelformat, int sync) {
if (sync != PSP_DISPLAY_SETBUF_IMMEDIATE && sync != PSP_DISPLAY_SETBUF_NEXTFRAME) {
return hleLogError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_MODE, "invalid sync mode");
}
if (topaddr != 0 && !Memory::IsRAMAddress(topaddr) && !Memory::IsVRAMAddress(topaddr)) {
return hleLogError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_POINTER, "invalid address");
}
if ((topaddr & 0xF) != 0) {
return hleLogError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_POINTER, "misaligned address");
}
if ((linesize & 0x3F) != 0 || (linesize == 0 && topaddr != 0)) {
return hleLogError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_SIZE, "invalid stride");
}
if (pixelformat < 0 || pixelformat > GE_FORMAT_8888) {
return hleLogError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_FORMAT, "invalid format");
}
if (sync == PSP_DISPLAY_SETBUF_IMMEDIATE) {
if ((GEBufferFormat)pixelformat != latchedFramebuf.fmt || linesize != latchedFramebuf.stride) {
return hleReportError(SCEDISPLAY, SCE_KERNEL_ERROR_INVALID_MODE, "must change latched framebuf first");
}
}