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1 /*
2  * Copyright 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 // TODO(b/129481165): remove the #pragma below and fix conversion issues
18 #pragma clang diagnostic push
19 #pragma clang diagnostic ignored "-Wconversion"
20 #undef LOG_TAG
21 #define LOG_TAG "SurfaceInterceptor"
22 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
23 
24 #include "Layer.h"
25 #include "SurfaceFlinger.h"
26 #include "SurfaceInterceptor.h"
27 
28 #include <fstream>
29 
30 #include <android-base/file.h>
31 #include <log/log.h>
32 #include <utils/Trace.h>
33 
34 namespace android {
35 
36 // ----------------------------------------------------------------------------
37 // TODO(marissaw): add new layer state values to SurfaceInterceptor
38 
39 SurfaceInterceptor::~SurfaceInterceptor() = default;
40 
41 namespace impl {
42 
addTransactionTraceListener(const sp<gui::ITransactionTraceListener> & listener)43 void SurfaceInterceptor::addTransactionTraceListener(
44         const sp<gui::ITransactionTraceListener>& listener) {
45     sp<IBinder> asBinder = IInterface::asBinder(listener);
46 
47     std::scoped_lock lock(mListenersMutex);
48 
49     asBinder->linkToDeath(this);
50 
51     listener->onToggled(mEnabled); // notifies of current state
52 
53     mTraceToggledListeners.emplace(asBinder, listener);
54 }
55 
binderDied(const wp<IBinder> & who)56 void SurfaceInterceptor::binderDied(const wp<IBinder>& who) {
57     std::scoped_lock lock(mListenersMutex);
58     mTraceToggledListeners.erase(who);
59 }
60 
enable(const SortedVector<sp<Layer>> & layers,const DefaultKeyedVector<wp<IBinder>,DisplayDeviceState> & displays)61 void SurfaceInterceptor::enable(const SortedVector<sp<Layer>>& layers,
62         const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays)
63 {
64     if (mEnabled) {
65         return;
66     }
67     ATRACE_CALL();
68     {
69         std::scoped_lock lock(mListenersMutex);
70         for (const auto& [_, listener] : mTraceToggledListeners) {
71             listener->onToggled(true);
72         }
73     }
74     mEnabled = true;
75     std::scoped_lock<std::mutex> protoGuard(mTraceMutex);
76     saveExistingDisplaysLocked(displays);
77     saveExistingSurfacesLocked(layers);
78 }
79 
disable()80 void SurfaceInterceptor::disable() {
81     if (!mEnabled) {
82         return;
83     }
84     ATRACE_CALL();
85     {
86         std::scoped_lock lock(mListenersMutex);
87         for (const auto& [_, listener] : mTraceToggledListeners) {
88             listener->onToggled(false);
89         }
90     }
91     mEnabled = false;
92     std::scoped_lock<std::mutex> protoGuard(mTraceMutex);
93     status_t err(writeProtoFileLocked());
94     ALOGE_IF(err == PERMISSION_DENIED, "Could not save the proto file! Permission denied");
95     ALOGE_IF(err == NOT_ENOUGH_DATA, "Could not save the proto file! There are missing fields");
96     mTrace.Clear();
97 }
98 
isEnabled()99 bool SurfaceInterceptor::isEnabled() {
100     return mEnabled;
101 }
102 
saveExistingDisplaysLocked(const DefaultKeyedVector<wp<IBinder>,DisplayDeviceState> & displays)103 void SurfaceInterceptor::saveExistingDisplaysLocked(
104         const DefaultKeyedVector< wp<IBinder>, DisplayDeviceState>& displays)
105 {
106     // Caveat: The initial snapshot does not capture the power mode of the existing displays
107     ATRACE_CALL();
108     for (size_t i = 0 ; i < displays.size() ; i++) {
109         addDisplayCreationLocked(createTraceIncrementLocked(), displays[i]);
110         addInitialDisplayStateLocked(createTraceIncrementLocked(), displays[i]);
111     }
112 }
113 
saveExistingSurfacesLocked(const SortedVector<sp<Layer>> & layers)114 void SurfaceInterceptor::saveExistingSurfacesLocked(const SortedVector<sp<Layer>>& layers) {
115     ATRACE_CALL();
116     for (const auto& l : layers) {
117         l->traverseInZOrder(LayerVector::StateSet::Drawing, [this](Layer* layer) {
118             addSurfaceCreationLocked(createTraceIncrementLocked(), layer);
119             addInitialSurfaceStateLocked(createTraceIncrementLocked(), layer);
120         });
121     }
122 }
123 
addInitialSurfaceStateLocked(Increment * increment,const sp<const Layer> & layer)124 void SurfaceInterceptor::addInitialSurfaceStateLocked(Increment* increment,
125         const sp<const Layer>& layer)
126 {
127     Transaction* transaction(increment->mutable_transaction());
128     const uint32_t layerFlags = layer->getTransactionFlags();
129     transaction->set_synchronous(layerFlags & BnSurfaceComposer::eSynchronous);
130     transaction->set_animation(layerFlags & BnSurfaceComposer::eAnimation);
131 
132     const int32_t layerId(getLayerId(layer));
133     addPositionLocked(transaction, layerId, layer->mDrawingState.transform.tx(),
134                       layer->mDrawingState.transform.ty());
135     addDepthLocked(transaction, layerId, layer->mDrawingState.z);
136     addAlphaLocked(transaction, layerId, layer->mDrawingState.color.a);
137     addTransparentRegionLocked(transaction, layerId,
138                                layer->mDrawingState.activeTransparentRegion_legacy);
139     addLayerStackLocked(transaction, layerId, layer->mDrawingState.layerStack);
140     addCropLocked(transaction, layerId, layer->mDrawingState.crop);
141     addCornerRadiusLocked(transaction, layerId, layer->mDrawingState.cornerRadius);
142     addBackgroundBlurRadiusLocked(transaction, layerId, layer->mDrawingState.backgroundBlurRadius);
143     addBlurRegionsLocked(transaction, layerId, layer->mDrawingState.blurRegions);
144     addFlagsLocked(transaction, layerId, layer->mDrawingState.flags,
145                    layer_state_t::eLayerHidden | layer_state_t::eLayerOpaque |
146                            layer_state_t::eLayerSecure);
147     addReparentLocked(transaction, layerId, getLayerIdFromWeakRef(layer->mDrawingParent));
148     addRelativeParentLocked(transaction, layerId,
149                             getLayerIdFromWeakRef(layer->mDrawingState.zOrderRelativeOf),
150                             layer->mDrawingState.z);
151     addShadowRadiusLocked(transaction, layerId, layer->mDrawingState.shadowRadius);
152     addTrustedOverlayLocked(transaction, layerId, layer->mDrawingState.isTrustedOverlay);
153 }
154 
addInitialDisplayStateLocked(Increment * increment,const DisplayDeviceState & display)155 void SurfaceInterceptor::addInitialDisplayStateLocked(Increment* increment,
156         const DisplayDeviceState& display)
157 {
158     Transaction* transaction(increment->mutable_transaction());
159     transaction->set_synchronous(false);
160     transaction->set_animation(false);
161 
162     addDisplaySurfaceLocked(transaction, display.sequenceId, display.surface);
163     addDisplayLayerStackLocked(transaction, display.sequenceId, display.layerStack);
164     addDisplayFlagsLocked(transaction, display.sequenceId, display.flags);
165     addDisplaySizeLocked(transaction, display.sequenceId, display.width, display.height);
166     addDisplayProjectionLocked(transaction, display.sequenceId, toRotationInt(display.orientation),
167                                display.layerStackSpaceRect, display.orientedDisplaySpaceRect);
168 }
169 
writeProtoFileLocked()170 status_t SurfaceInterceptor::writeProtoFileLocked() {
171     ATRACE_CALL();
172     std::string output;
173 
174     if (!mTrace.IsInitialized()) {
175         return NOT_ENOUGH_DATA;
176     }
177     if (!mTrace.SerializeToString(&output)) {
178         return PERMISSION_DENIED;
179     }
180     if (!android::base::WriteStringToFile(output, mOutputFileName, true)) {
181         return PERMISSION_DENIED;
182     }
183 
184     return NO_ERROR;
185 }
186 
getLayer(const wp<IBinder> & weakHandle) const187 const sp<const Layer> SurfaceInterceptor::getLayer(const wp<IBinder>& weakHandle) const {
188     sp<IBinder> handle = weakHandle.promote();
189     return Layer::fromHandle(handle).promote();
190 }
191 
getLayerId(const sp<const Layer> & layer) const192 int32_t SurfaceInterceptor::getLayerId(const sp<const Layer>& layer) const {
193     return layer->sequence;
194 }
195 
getLayerIdFromWeakRef(const wp<const Layer> & layer) const196 int32_t SurfaceInterceptor::getLayerIdFromWeakRef(const wp<const Layer>& layer) const {
197     if (layer == nullptr) {
198         return -1;
199     }
200     auto strongLayer = layer.promote();
201     return strongLayer == nullptr ? -1 : getLayerId(strongLayer);
202 }
203 
getLayerIdFromHandle(const sp<IBinder> & handle) const204 int32_t SurfaceInterceptor::getLayerIdFromHandle(const sp<IBinder>& handle) const {
205     if (handle == nullptr) {
206         return -1;
207     }
208     const sp<const Layer> layer = Layer::fromHandle(handle).promote();
209     return layer == nullptr ? -1 : getLayerId(layer);
210 }
211 
createTraceIncrementLocked()212 Increment* SurfaceInterceptor::createTraceIncrementLocked() {
213     Increment* increment(mTrace.add_increment());
214     increment->set_time_stamp(elapsedRealtimeNano());
215     return increment;
216 }
217 
createSurfaceChangeLocked(Transaction * transaction,int32_t layerId)218 SurfaceChange* SurfaceInterceptor::createSurfaceChangeLocked(Transaction* transaction,
219         int32_t layerId)
220 {
221     SurfaceChange* change(transaction->add_surface_change());
222     change->set_id(layerId);
223     return change;
224 }
225 
createDisplayChangeLocked(Transaction * transaction,int32_t sequenceId)226 DisplayChange* SurfaceInterceptor::createDisplayChangeLocked(Transaction* transaction,
227         int32_t sequenceId)
228 {
229     DisplayChange* dispChange(transaction->add_display_change());
230     dispChange->set_id(sequenceId);
231     return dispChange;
232 }
233 
setProtoRectLocked(Rectangle * protoRect,const Rect & rect)234 void SurfaceInterceptor::setProtoRectLocked(Rectangle* protoRect, const Rect& rect) {
235     protoRect->set_left(rect.left);
236     protoRect->set_top(rect.top);
237     protoRect->set_right(rect.right);
238     protoRect->set_bottom(rect.bottom);
239 }
240 
setTransactionOriginLocked(Transaction * transaction,int32_t pid,int32_t uid)241 void SurfaceInterceptor::setTransactionOriginLocked(Transaction* transaction, int32_t pid,
242                                                     int32_t uid) {
243     Origin* origin(transaction->mutable_origin());
244     origin->set_pid(pid);
245     origin->set_uid(uid);
246 }
247 
addPositionLocked(Transaction * transaction,int32_t layerId,float x,float y)248 void SurfaceInterceptor::addPositionLocked(Transaction* transaction, int32_t layerId,
249         float x, float y)
250 {
251     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
252     PositionChange* posChange(change->mutable_position());
253     posChange->set_x(x);
254     posChange->set_y(y);
255 }
256 
addDepthLocked(Transaction * transaction,int32_t layerId,uint32_t z)257 void SurfaceInterceptor::addDepthLocked(Transaction* transaction, int32_t layerId,
258         uint32_t z)
259 {
260     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
261     LayerChange* depthChange(change->mutable_layer());
262     depthChange->set_layer(z);
263 }
264 
addSizeLocked(Transaction * transaction,int32_t layerId,uint32_t w,uint32_t h)265 void SurfaceInterceptor::addSizeLocked(Transaction* transaction, int32_t layerId, uint32_t w,
266         uint32_t h)
267 {
268     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
269     SizeChange* sizeChange(change->mutable_size());
270     sizeChange->set_w(w);
271     sizeChange->set_h(h);
272 }
273 
addAlphaLocked(Transaction * transaction,int32_t layerId,float alpha)274 void SurfaceInterceptor::addAlphaLocked(Transaction* transaction, int32_t layerId,
275         float alpha)
276 {
277     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
278     AlphaChange* alphaChange(change->mutable_alpha());
279     alphaChange->set_alpha(alpha);
280 }
281 
addMatrixLocked(Transaction * transaction,int32_t layerId,const layer_state_t::matrix22_t & matrix)282 void SurfaceInterceptor::addMatrixLocked(Transaction* transaction, int32_t layerId,
283         const layer_state_t::matrix22_t& matrix)
284 {
285     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
286     MatrixChange* matrixChange(change->mutable_matrix());
287     matrixChange->set_dsdx(matrix.dsdx);
288     matrixChange->set_dtdx(matrix.dtdx);
289     matrixChange->set_dsdy(matrix.dsdy);
290     matrixChange->set_dtdy(matrix.dtdy);
291 }
292 
addTransparentRegionLocked(Transaction * transaction,int32_t layerId,const Region & transRegion)293 void SurfaceInterceptor::addTransparentRegionLocked(Transaction* transaction,
294         int32_t layerId, const Region& transRegion)
295 {
296     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
297     TransparentRegionHintChange* transparentChange(change->mutable_transparent_region_hint());
298 
299     for (const auto& rect : transRegion) {
300         Rectangle* protoRect(transparentChange->add_region());
301         setProtoRectLocked(protoRect, rect);
302     }
303 }
304 
addFlagsLocked(Transaction * transaction,int32_t layerId,uint8_t flags,uint8_t mask)305 void SurfaceInterceptor::addFlagsLocked(Transaction* transaction, int32_t layerId, uint8_t flags,
306                                         uint8_t mask) {
307     // There can be multiple flags changed
308     if (mask & layer_state_t::eLayerHidden) {
309         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
310         HiddenFlagChange* flagChange(change->mutable_hidden_flag());
311         flagChange->set_hidden_flag(flags & layer_state_t::eLayerHidden);
312     }
313     if (mask & layer_state_t::eLayerOpaque) {
314         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
315         OpaqueFlagChange* flagChange(change->mutable_opaque_flag());
316         flagChange->set_opaque_flag(flags & layer_state_t::eLayerOpaque);
317     }
318     if (mask & layer_state_t::eLayerSecure) {
319         SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
320         SecureFlagChange* flagChange(change->mutable_secure_flag());
321         flagChange->set_secure_flag(flags & layer_state_t::eLayerSecure);
322     }
323 }
324 
addLayerStackLocked(Transaction * transaction,int32_t layerId,ui::LayerStack layerStack)325 void SurfaceInterceptor::addLayerStackLocked(Transaction* transaction, int32_t layerId,
326                                              ui::LayerStack layerStack) {
327     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
328     LayerStackChange* layerStackChange(change->mutable_layer_stack());
329     layerStackChange->set_layer_stack(layerStack.id);
330 }
331 
addCropLocked(Transaction * transaction,int32_t layerId,const Rect & rect)332 void SurfaceInterceptor::addCropLocked(Transaction* transaction, int32_t layerId,
333         const Rect& rect)
334 {
335     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
336     CropChange* cropChange(change->mutable_crop());
337     Rectangle* protoRect(cropChange->mutable_rectangle());
338     setProtoRectLocked(protoRect, rect);
339 }
340 
addCornerRadiusLocked(Transaction * transaction,int32_t layerId,float cornerRadius)341 void SurfaceInterceptor::addCornerRadiusLocked(Transaction* transaction, int32_t layerId,
342                                        float cornerRadius)
343 {
344     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
345     CornerRadiusChange* cornerRadiusChange(change->mutable_corner_radius());
346     cornerRadiusChange->set_corner_radius(cornerRadius);
347 }
348 
addBackgroundBlurRadiusLocked(Transaction * transaction,int32_t layerId,int32_t backgroundBlurRadius)349 void SurfaceInterceptor::addBackgroundBlurRadiusLocked(Transaction* transaction, int32_t layerId,
350                                                        int32_t backgroundBlurRadius) {
351     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
352     BackgroundBlurRadiusChange* blurRadiusChange(change->mutable_background_blur_radius());
353     blurRadiusChange->set_background_blur_radius(backgroundBlurRadius);
354 }
355 
addBlurRegionsLocked(Transaction * transaction,int32_t layerId,const std::vector<BlurRegion> & blurRegions)356 void SurfaceInterceptor::addBlurRegionsLocked(Transaction* transaction, int32_t layerId,
357                                               const std::vector<BlurRegion>& blurRegions) {
358     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
359     BlurRegionsChange* blurRegionsChange(change->mutable_blur_regions());
360     for (const auto blurRegion : blurRegions) {
361         const auto blurRegionChange = blurRegionsChange->add_blur_regions();
362         blurRegionChange->set_blur_radius(blurRegion.blurRadius);
363         blurRegionChange->set_corner_radius_tl(blurRegion.cornerRadiusTL);
364         blurRegionChange->set_corner_radius_tr(blurRegion.cornerRadiusTR);
365         blurRegionChange->set_corner_radius_bl(blurRegion.cornerRadiusBL);
366         blurRegionChange->set_corner_radius_br(blurRegion.cornerRadiusBR);
367         blurRegionChange->set_alpha(blurRegion.alpha);
368         blurRegionChange->set_left(blurRegion.left);
369         blurRegionChange->set_top(blurRegion.top);
370         blurRegionChange->set_right(blurRegion.right);
371         blurRegionChange->set_bottom(blurRegion.bottom);
372     }
373 }
374 
addReparentLocked(Transaction * transaction,int32_t layerId,int32_t parentId)375 void SurfaceInterceptor::addReparentLocked(Transaction* transaction, int32_t layerId,
376                                            int32_t parentId) {
377     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
378     ReparentChange* overrideChange(change->mutable_reparent());
379     overrideChange->set_parent_id(parentId);
380 }
381 
addRelativeParentLocked(Transaction * transaction,int32_t layerId,int32_t parentId,int z)382 void SurfaceInterceptor::addRelativeParentLocked(Transaction* transaction, int32_t layerId,
383                                                  int32_t parentId, int z) {
384     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
385     RelativeParentChange* overrideChange(change->mutable_relative_parent());
386     overrideChange->set_relative_parent_id(parentId);
387     overrideChange->set_z(z);
388 }
389 
addShadowRadiusLocked(Transaction * transaction,int32_t layerId,float shadowRadius)390 void SurfaceInterceptor::addShadowRadiusLocked(Transaction* transaction, int32_t layerId,
391                                                float shadowRadius) {
392     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
393     ShadowRadiusChange* overrideChange(change->mutable_shadow_radius());
394     overrideChange->set_radius(shadowRadius);
395 }
396 
addTrustedOverlayLocked(Transaction * transaction,int32_t layerId,bool isTrustedOverlay)397 void SurfaceInterceptor::addTrustedOverlayLocked(Transaction* transaction, int32_t layerId,
398                                                  bool isTrustedOverlay) {
399     SurfaceChange* change(createSurfaceChangeLocked(transaction, layerId));
400     TrustedOverlayChange* overrideChange(change->mutable_trusted_overlay());
401     overrideChange->set_is_trusted_overlay(isTrustedOverlay);
402 }
403 
addSurfaceChangesLocked(Transaction * transaction,const layer_state_t & state)404 void SurfaceInterceptor::addSurfaceChangesLocked(Transaction* transaction,
405         const layer_state_t& state)
406 {
407     const sp<const Layer> layer(getLayer(state.surface));
408     if (layer == nullptr) {
409         ALOGE("An existing layer could not be retrieved with the surface "
410                 "from the layer_state_t surface in the update transaction");
411         return;
412     }
413 
414     const int32_t layerId(getLayerId(layer));
415 
416     if (state.what & layer_state_t::ePositionChanged) {
417         addPositionLocked(transaction, layerId, state.x, state.y);
418     }
419     if (state.what & layer_state_t::eLayerChanged) {
420         addDepthLocked(transaction, layerId, state.z);
421     }
422     if (state.what & layer_state_t::eSizeChanged) {
423         addSizeLocked(transaction, layerId, state.w, state.h);
424     }
425     if (state.what & layer_state_t::eAlphaChanged) {
426         addAlphaLocked(transaction, layerId, state.alpha);
427     }
428     if (state.what & layer_state_t::eMatrixChanged) {
429         addMatrixLocked(transaction, layerId, state.matrix);
430     }
431     if (state.what & layer_state_t::eTransparentRegionChanged) {
432         addTransparentRegionLocked(transaction, layerId, state.transparentRegion);
433     }
434     if (state.what & layer_state_t::eFlagsChanged) {
435         addFlagsLocked(transaction, layerId, state.flags, state.mask);
436     }
437     if (state.what & layer_state_t::eLayerStackChanged) {
438         addLayerStackLocked(transaction, layerId, state.layerStack);
439     }
440     if (state.what & layer_state_t::eCropChanged) {
441         addCropLocked(transaction, layerId, state.crop);
442     }
443     if (state.what & layer_state_t::eCornerRadiusChanged) {
444         addCornerRadiusLocked(transaction, layerId, state.cornerRadius);
445     }
446     if (state.what & layer_state_t::eBackgroundBlurRadiusChanged) {
447         addBackgroundBlurRadiusLocked(transaction, layerId, state.backgroundBlurRadius);
448     }
449     if (state.what & layer_state_t::eBlurRegionsChanged) {
450         addBlurRegionsLocked(transaction, layerId, state.blurRegions);
451     }
452     if (state.what & layer_state_t::eReparent) {
453         auto parentHandle = (state.parentSurfaceControlForChild)
454                 ? state.parentSurfaceControlForChild->getHandle()
455                 : nullptr;
456         addReparentLocked(transaction, layerId, getLayerIdFromHandle(parentHandle));
457     }
458     if (state.what & layer_state_t::eRelativeLayerChanged) {
459         addRelativeParentLocked(transaction, layerId,
460                                 getLayerIdFromHandle(
461                                         state.relativeLayerSurfaceControl->getHandle()),
462                                 state.z);
463     }
464     if (state.what & layer_state_t::eShadowRadiusChanged) {
465         addShadowRadiusLocked(transaction, layerId, state.shadowRadius);
466     }
467     if (state.what & layer_state_t::eTrustedOverlayChanged) {
468         addTrustedOverlayLocked(transaction, layerId, state.isTrustedOverlay);
469     }
470     if (state.what & layer_state_t::eStretchChanged) {
471         ALOGW("SurfaceInterceptor not implemented for eStretchChanged");
472     }
473 }
474 
addDisplayChangesLocked(Transaction * transaction,const DisplayState & state,int32_t sequenceId)475 void SurfaceInterceptor::addDisplayChangesLocked(Transaction* transaction,
476         const DisplayState& state, int32_t sequenceId)
477 {
478     if (state.what & DisplayState::eSurfaceChanged) {
479         addDisplaySurfaceLocked(transaction, sequenceId, state.surface);
480     }
481     if (state.what & DisplayState::eLayerStackChanged) {
482         addDisplayLayerStackLocked(transaction, sequenceId, state.layerStack);
483     }
484     if (state.what & DisplayState::eFlagsChanged) {
485         addDisplayFlagsLocked(transaction, sequenceId, state.flags);
486     }
487     if (state.what & DisplayState::eDisplaySizeChanged) {
488         addDisplaySizeLocked(transaction, sequenceId, state.width, state.height);
489     }
490     if (state.what & DisplayState::eDisplayProjectionChanged) {
491         addDisplayProjectionLocked(transaction, sequenceId, toRotationInt(state.orientation),
492                                    state.layerStackSpaceRect, state.orientedDisplaySpaceRect);
493     }
494 }
495 
addTransactionLocked(Increment * increment,const Vector<ComposerState> & stateUpdates,const DefaultKeyedVector<wp<IBinder>,DisplayDeviceState> & displays,const Vector<DisplayState> & changedDisplays,uint32_t transactionFlags,int originPid,int originUid,uint64_t transactionId)496 void SurfaceInterceptor::addTransactionLocked(
497         Increment* increment, const Vector<ComposerState>& stateUpdates,
498         const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
499         const Vector<DisplayState>& changedDisplays, uint32_t transactionFlags, int originPid,
500         int originUid, uint64_t transactionId) {
501     Transaction* transaction(increment->mutable_transaction());
502     transaction->set_synchronous(transactionFlags & BnSurfaceComposer::eSynchronous);
503     transaction->set_animation(transactionFlags & BnSurfaceComposer::eAnimation);
504     setTransactionOriginLocked(transaction, originPid, originUid);
505     transaction->set_id(transactionId);
506     for (const auto& compState: stateUpdates) {
507         addSurfaceChangesLocked(transaction, compState.state);
508     }
509     for (const auto& disp: changedDisplays) {
510         ssize_t dpyIdx = displays.indexOfKey(disp.token);
511         if (dpyIdx >= 0) {
512             const DisplayDeviceState& dispState(displays.valueAt(dpyIdx));
513             addDisplayChangesLocked(transaction, disp, dispState.sequenceId);
514         }
515     }
516 }
517 
addSurfaceCreationLocked(Increment * increment,const sp<const Layer> & layer)518 void SurfaceInterceptor::addSurfaceCreationLocked(Increment* increment,
519         const sp<const Layer>& layer)
520 {
521     SurfaceCreation* creation(increment->mutable_surface_creation());
522     creation->set_id(getLayerId(layer));
523     creation->set_name(layer->getName());
524     creation->set_w(layer->mDrawingState.active_legacy.w);
525     creation->set_h(layer->mDrawingState.active_legacy.h);
526 }
527 
addSurfaceDeletionLocked(Increment * increment,const sp<const Layer> & layer)528 void SurfaceInterceptor::addSurfaceDeletionLocked(Increment* increment,
529         const sp<const Layer>& layer)
530 {
531     SurfaceDeletion* deletion(increment->mutable_surface_deletion());
532     deletion->set_id(getLayerId(layer));
533 }
534 
addBufferUpdateLocked(Increment * increment,int32_t layerId,uint32_t width,uint32_t height,uint64_t frameNumber)535 void SurfaceInterceptor::addBufferUpdateLocked(Increment* increment, int32_t layerId,
536         uint32_t width, uint32_t height, uint64_t frameNumber)
537 {
538     BufferUpdate* update(increment->mutable_buffer_update());
539     update->set_id(layerId);
540     update->set_w(width);
541     update->set_h(height);
542     update->set_frame_number(frameNumber);
543 }
544 
addVSyncUpdateLocked(Increment * increment,nsecs_t timestamp)545 void SurfaceInterceptor::addVSyncUpdateLocked(Increment* increment, nsecs_t timestamp) {
546     VSyncEvent* event(increment->mutable_vsync_event());
547     event->set_when(timestamp);
548 }
549 
addDisplaySurfaceLocked(Transaction * transaction,int32_t sequenceId,const sp<const IGraphicBufferProducer> & surface)550 void SurfaceInterceptor::addDisplaySurfaceLocked(Transaction* transaction, int32_t sequenceId,
551         const sp<const IGraphicBufferProducer>& surface)
552 {
553     if (surface == nullptr) {
554         return;
555     }
556     uint64_t bufferQueueId = 0;
557     status_t err(surface->getUniqueId(&bufferQueueId));
558     if (err == NO_ERROR) {
559         DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
560         DispSurfaceChange* surfaceChange(dispChange->mutable_surface());
561         surfaceChange->set_buffer_queue_id(bufferQueueId);
562         surfaceChange->set_buffer_queue_name(surface->getConsumerName().string());
563     }
564     else {
565         ALOGE("invalid graphic buffer producer received while tracing a display change (%s)",
566                 strerror(-err));
567     }
568 }
569 
addDisplayLayerStackLocked(Transaction * transaction,int32_t sequenceId,ui::LayerStack layerStack)570 void SurfaceInterceptor::addDisplayLayerStackLocked(Transaction* transaction, int32_t sequenceId,
571                                                     ui::LayerStack layerStack) {
572     DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
573     LayerStackChange* layerStackChange(dispChange->mutable_layer_stack());
574     layerStackChange->set_layer_stack(layerStack.id);
575 }
576 
addDisplayFlagsLocked(Transaction * transaction,int32_t sequenceId,uint32_t flags)577 void SurfaceInterceptor::addDisplayFlagsLocked(Transaction* transaction, int32_t sequenceId,
578                                                uint32_t flags) {
579     DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
580     DisplayFlagsChange* flagsChange(dispChange->mutable_flags());
581     flagsChange->set_flags(flags);
582 }
583 
addDisplaySizeLocked(Transaction * transaction,int32_t sequenceId,uint32_t w,uint32_t h)584 void SurfaceInterceptor::addDisplaySizeLocked(Transaction* transaction, int32_t sequenceId,
585         uint32_t w, uint32_t h)
586 {
587     DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
588     SizeChange* sizeChange(dispChange->mutable_size());
589     sizeChange->set_w(w);
590     sizeChange->set_h(h);
591 }
592 
addDisplayProjectionLocked(Transaction * transaction,int32_t sequenceId,int32_t orientation,const Rect & viewport,const Rect & frame)593 void SurfaceInterceptor::addDisplayProjectionLocked(Transaction* transaction,
594         int32_t sequenceId, int32_t orientation, const Rect& viewport, const Rect& frame)
595 {
596     DisplayChange* dispChange(createDisplayChangeLocked(transaction, sequenceId));
597     ProjectionChange* projectionChange(dispChange->mutable_projection());
598     projectionChange->set_orientation(orientation);
599     Rectangle* viewportRect(projectionChange->mutable_viewport());
600     setProtoRectLocked(viewportRect, viewport);
601     Rectangle* frameRect(projectionChange->mutable_frame());
602     setProtoRectLocked(frameRect, frame);
603 }
604 
addDisplayCreationLocked(Increment * increment,const DisplayDeviceState & info)605 void SurfaceInterceptor::addDisplayCreationLocked(Increment* increment,
606         const DisplayDeviceState& info)
607 {
608     DisplayCreation* creation(increment->mutable_display_creation());
609     creation->set_id(info.sequenceId);
610     creation->set_name(info.displayName);
611     creation->set_is_secure(info.isSecure);
612     if (info.physical) {
613         creation->set_display_id(info.physical->id.value);
614     }
615 }
616 
addDisplayDeletionLocked(Increment * increment,int32_t sequenceId)617 void SurfaceInterceptor::addDisplayDeletionLocked(Increment* increment, int32_t sequenceId) {
618     DisplayDeletion* deletion(increment->mutable_display_deletion());
619     deletion->set_id(sequenceId);
620 }
621 
addPowerModeUpdateLocked(Increment * increment,int32_t sequenceId,int32_t mode)622 void SurfaceInterceptor::addPowerModeUpdateLocked(Increment* increment, int32_t sequenceId,
623         int32_t mode)
624 {
625     PowerModeUpdate* powerModeUpdate(increment->mutable_power_mode_update());
626     powerModeUpdate->set_id(sequenceId);
627     powerModeUpdate->set_mode(mode);
628 }
629 
saveTransaction(const Vector<ComposerState> & stateUpdates,const DefaultKeyedVector<wp<IBinder>,DisplayDeviceState> & displays,const Vector<DisplayState> & changedDisplays,uint32_t flags,int originPid,int originUid,uint64_t transactionId)630 void SurfaceInterceptor::saveTransaction(
631         const Vector<ComposerState>& stateUpdates,
632         const DefaultKeyedVector<wp<IBinder>, DisplayDeviceState>& displays,
633         const Vector<DisplayState>& changedDisplays, uint32_t flags, int originPid, int originUid,
634         uint64_t transactionId) {
635     if (!mEnabled || (stateUpdates.size() <= 0 && changedDisplays.size() <= 0)) {
636         return;
637     }
638     ATRACE_CALL();
639     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
640     addTransactionLocked(createTraceIncrementLocked(), stateUpdates, displays, changedDisplays,
641                          flags, originPid, originUid, transactionId);
642 }
643 
saveSurfaceCreation(const sp<const Layer> & layer)644 void SurfaceInterceptor::saveSurfaceCreation(const sp<const Layer>& layer) {
645     if (!mEnabled || layer == nullptr) {
646         return;
647     }
648     ATRACE_CALL();
649     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
650     addSurfaceCreationLocked(createTraceIncrementLocked(), layer);
651 }
652 
saveSurfaceDeletion(const sp<const Layer> & layer)653 void SurfaceInterceptor::saveSurfaceDeletion(const sp<const Layer>& layer) {
654     if (!mEnabled || layer == nullptr) {
655         return;
656     }
657     ATRACE_CALL();
658     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
659     addSurfaceDeletionLocked(createTraceIncrementLocked(), layer);
660 }
661 
662 /**
663  * Here we pass the layer by ID instead of by sp<> since this is called without
664  * holding the state-lock from a Binder thread. If we required the caller
665  * to pass 'this' by sp<> the temporary sp<> constructed could end up
666  * being the last reference and we might accidentally destroy the Layer
667  * from this binder thread.
668  */
saveBufferUpdate(int32_t layerId,uint32_t width,uint32_t height,uint64_t frameNumber)669 void SurfaceInterceptor::saveBufferUpdate(int32_t layerId, uint32_t width,
670         uint32_t height, uint64_t frameNumber)
671 {
672     if (!mEnabled) {
673         return;
674     }
675     ATRACE_CALL();
676     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
677     addBufferUpdateLocked(createTraceIncrementLocked(), layerId, width, height, frameNumber);
678 }
679 
saveVSyncEvent(nsecs_t timestamp)680 void SurfaceInterceptor::saveVSyncEvent(nsecs_t timestamp) {
681     if (!mEnabled) {
682         return;
683     }
684     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
685     addVSyncUpdateLocked(createTraceIncrementLocked(), timestamp);
686 }
687 
saveDisplayCreation(const DisplayDeviceState & info)688 void SurfaceInterceptor::saveDisplayCreation(const DisplayDeviceState& info) {
689     if (!mEnabled) {
690         return;
691     }
692     ATRACE_CALL();
693     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
694     addDisplayCreationLocked(createTraceIncrementLocked(), info);
695 }
696 
saveDisplayDeletion(int32_t sequenceId)697 void SurfaceInterceptor::saveDisplayDeletion(int32_t sequenceId) {
698     if (!mEnabled) {
699         return;
700     }
701     ATRACE_CALL();
702     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
703     addDisplayDeletionLocked(createTraceIncrementLocked(), sequenceId);
704 }
705 
savePowerModeUpdate(int32_t sequenceId,int32_t mode)706 void SurfaceInterceptor::savePowerModeUpdate(int32_t sequenceId, int32_t mode) {
707     if (!mEnabled) {
708         return;
709     }
710     ATRACE_CALL();
711     std::lock_guard<std::mutex> protoGuard(mTraceMutex);
712     addPowerModeUpdateLocked(createTraceIncrementLocked(), sequenceId, mode);
713 }
714 
715 } // namespace impl
716 } // namespace android
717 
718 // TODO(b/129481165): remove the #pragma below and fix conversion issues
719 #pragma clang diagnostic pop // ignored "-Wconversion"
720