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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/layers/OMTASampler.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/layers/CompositorAnimationStorage.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/OMTAController.h"
#include "mozilla/layers/SynchronousTask.h"
#include "mozilla/layers/WebRenderBridgeParent.h"
#include "mozilla/webrender/WebRenderAPI.h"
namespace mozilla {
namespace layers {
StaticMutex OMTASampler::sWindowIdLock;
StaticAutoPtr<std::unordered_map<uint64_t, RefPtr<OMTASampler>>>
OMTASampler::sWindowIdMap;
OMTASampler::OMTASampler(const RefPtr<CompositorAnimationStorage>& aAnimStorage,
LayersId aRootLayersId)
: mAnimStorage(aAnimStorage),
mStorageLock("OMTASampler::mStorageLock"),
mThreadIdLock("OMTASampler::mThreadIdLock"),
mSampleTimeLock("OMTASampler::mSampleTimeLock"),
mIsInTestMode(false) {
mController = new OMTAController(aRootLayersId);
}
void OMTASampler::Destroy() {
StaticMutexAutoLock lock(sWindowIdLock);
if (mWindowId) {
MOZ_ASSERT(sWindowIdMap);
sWindowIdMap->erase(wr::AsUint64(*mWindowId));
}
}
void OMTASampler::SetWebRenderWindowId(const wr::WrWindowId& aWindowId) {
StaticMutexAutoLock lock(sWindowIdLock);
MOZ_ASSERT(!mWindowId);
mWindowId = Some(aWindowId);
if (!sWindowIdMap) {
sWindowIdMap = new std::unordered_map<uint64_t, RefPtr<OMTASampler>>();
NS_DispatchToMainThread(
NS_NewRunnableFunction("OMTASampler::ClearOnShutdown",
[] { ClearOnShutdown(&sWindowIdMap); }));
}
(*sWindowIdMap)[wr::AsUint64(aWindowId)] = this;
}
/*static*/
void OMTASampler::SetSamplerThread(const wr::WrWindowId& aWindowId) {
if (RefPtr<OMTASampler> sampler = GetSampler(aWindowId)) {
MutexAutoLock lock(sampler->mThreadIdLock);
sampler->mSamplerThreadId = Some(PlatformThread::CurrentId());
}
}
/*static*/
void OMTASampler::Sample(const wr::WrWindowId& aWindowId,
wr::Transaction* aTransaction) {
if (RefPtr<OMTASampler> sampler = GetSampler(aWindowId)) {
wr::TransactionWrapper txn(aTransaction);
sampler->Sample(txn);
}
}
void OMTASampler::SetSampleTime(const TimeStamp& aSampleTime) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
const bool hasAnimations = HasAnimations();
MutexAutoLock lock(mSampleTimeLock);
// Reset the previous time stamp if we don't already have any running
// animations to avoid using the time which is far behind for newly
// started animations.
mPreviousSampleTime = hasAnimations ? std::move(mSampleTime) : TimeStamp();
mSampleTime = aSampleTime;
}
void OMTASampler::ResetPreviousSampleTime() {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mSampleTimeLock);
mPreviousSampleTime = TimeStamp();
}
void OMTASampler::Sample(wr::TransactionWrapper& aTxn) {
MOZ_ASSERT(IsSamplerThread());
// If we are in test mode, don't sample with the current time stamp, it will
// skew cached animation values.
if (mIsInTestMode) {
return;
}
TimeStamp sampleTime;
TimeStamp previousSampleTime;
{ // scope lock
MutexAutoLock lock(mSampleTimeLock);
// If mSampleTime is null we're in a startup phase where the
// WebRenderBridgeParent hasn't yet provided us with a sample time.
// If we're that early there probably aren't any OMTA animations happening
// anyway, so using Timestamp::Now() should be fine.
sampleTime = mSampleTime.IsNull() ? TimeStamp::Now() : mSampleTime;
previousSampleTime = mPreviousSampleTime;
}
WrAnimations animations = SampleAnimations(previousSampleTime, sampleTime);
aTxn.AppendDynamicProperties(animations.mOpacityArrays,
animations.mTransformArrays,
animations.mColorArrays);
}
WrAnimations OMTASampler::SampleAnimations(const TimeStamp& aPreviousSampleTime,
const TimeStamp& aSampleTime) {
MOZ_ASSERT(IsSamplerThread());
MutexAutoLock lock(mStorageLock);
mAnimStorage->SampleAnimations(mController, aPreviousSampleTime, aSampleTime);
return mAnimStorage->CollectWebRenderAnimations();
}
OMTAValue OMTASampler::GetOMTAValue(const uint64_t& aId) const {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mStorageLock);
return mAnimStorage->GetOMTAValue(aId);
}
void OMTASampler::SampleForTesting(const Maybe<TimeStamp>& aTestingSampleTime) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
TimeStamp sampleTime;
TimeStamp previousSampleTime;
{ // scope lock
MutexAutoLock timeLock(mSampleTimeLock);
if (aTestingSampleTime) {
// If we are on testing refresh mode, use the testing time stamp for both
// of the previous sample time and the current sample time since unlike
// normal refresh mode, the testing mode animations on the compositor are
// synchronously composed, so we don't need to worry about the time gap
// between the main thread and compositor thread.
sampleTime = *aTestingSampleTime;
previousSampleTime = *aTestingSampleTime;
} else {
sampleTime = mSampleTime;
previousSampleTime = mPreviousSampleTime;
}
}
MutexAutoLock storageLock(mStorageLock);
mAnimStorage->SampleAnimations(mController, previousSampleTime, sampleTime);
}
void OMTASampler::SetAnimations(
uint64_t aId, const LayersId& aLayersId,
const nsTArray<layers::Animation>& aAnimations) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mStorageLock);
mAnimStorage->SetAnimations(aId, aLayersId, aAnimations);
}
bool OMTASampler::HasAnimations() const {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mStorageLock);
return mAnimStorage->HasAnimations();
}
void OMTASampler::ClearActiveAnimations(
std::unordered_map<uint64_t, wr::WrEpoch>& aActiveAnimations) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mStorageLock);
for (const auto& id : aActiveAnimations) {
mAnimStorage->ClearById(id.first);
}
}
void OMTASampler::RemoveEpochDataPriorTo(
std::queue<CompositorAnimationIdsForEpoch>& aCompositorAnimationsToDelete,
std::unordered_map<uint64_t, wr::WrEpoch>& aActiveAnimations,
const wr::WrEpoch& aRenderedEpoch) {
MOZ_ASSERT(CompositorThreadHolder::IsInCompositorThread());
MutexAutoLock lock(mStorageLock);
while (!aCompositorAnimationsToDelete.empty()) {
if (aRenderedEpoch < aCompositorAnimationsToDelete.front().mEpoch) {
break;
}
for (uint64_t id : aCompositorAnimationsToDelete.front().mIds) {
const auto activeAnim = aActiveAnimations.find(id);
if (activeAnim == aActiveAnimations.end()) {
NS_ERROR("Tried to delete invalid animation");
continue;
}
// Check if animation delete request is still valid.
if (activeAnim->second <= aCompositorAnimationsToDelete.front().mEpoch) {
mAnimStorage->ClearById(id);
aActiveAnimations.erase(activeAnim);
}
}
aCompositorAnimationsToDelete.pop();
}
}
bool OMTASampler::IsSamplerThread() const {
MutexAutoLock lock(mThreadIdLock);
return mSamplerThreadId && PlatformThread::CurrentId() == *mSamplerThreadId;
}
/*static*/
already_AddRefed<OMTASampler> OMTASampler::GetSampler(
const wr::WrWindowId& aWindowId) {
RefPtr<OMTASampler> sampler;
StaticMutexAutoLock lock(sWindowIdLock);
if (sWindowIdMap) {
auto it = sWindowIdMap->find(wr::AsUint64(aWindowId));
if (it != sWindowIdMap->end()) {
sampler = it->second;
}
}
return sampler.forget();
}
} // namespace layers
} // namespace mozilla
void omta_register_sampler(mozilla::wr::WrWindowId aWindowId) {
mozilla::layers::OMTASampler::SetSamplerThread(aWindowId);
}
void omta_sample(mozilla::wr::WrWindowId aWindowId,
mozilla::wr::Transaction* aTransaction) {
mozilla::layers::OMTASampler::Sample(aWindowId, aTransaction);
}
void omta_deregister_sampler(mozilla::wr::WrWindowId aWindowId) {}
|
