1 /*
2 * Copyright (C) 2007 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 #define LOG_TAG "SurfaceComposerClient"
18
19 #include <stdint.h>
20 #include <sys/types.h>
21
22 #include <utils/Errors.h>
23 #include <utils/Log.h>
24 #include <utils/Singleton.h>
25 #include <utils/SortedVector.h>
26 #include <utils/String8.h>
27 #include <utils/threads.h>
28
29 #include <binder/IMemory.h>
30 #include <binder/IServiceManager.h>
31
32 #include <ui/DisplayInfo.h>
33
34 #include <gui/CpuConsumer.h>
35 #include <gui/IGraphicBufferProducer.h>
36 #include <gui/ISurfaceComposer.h>
37 #include <gui/ISurfaceComposerClient.h>
38 #include <gui/SurfaceComposerClient.h>
39
40 #include <private/gui/ComposerService.h>
41 #include <private/gui/LayerState.h>
42
43 namespace android {
44 // ---------------------------------------------------------------------------
45
46 ANDROID_SINGLETON_STATIC_INSTANCE(ComposerService);
47
ComposerService()48 ComposerService::ComposerService()
49 : Singleton<ComposerService>() {
50 Mutex::Autolock _l(mLock);
51 connectLocked();
52 }
53
connectLocked()54 void ComposerService::connectLocked() {
55 const String16 name("SurfaceFlinger");
56 while (getService(name, &mComposerService) != NO_ERROR) {
57 usleep(250000);
58 }
59 assert(mComposerService != NULL);
60
61 // Create the death listener.
62 class DeathObserver : public IBinder::DeathRecipient {
63 ComposerService& mComposerService;
64 virtual void binderDied(const wp<IBinder>& who) {
65 ALOGW("ComposerService remote (surfaceflinger) died [%p]",
66 who.unsafe_get());
67 mComposerService.composerServiceDied();
68 }
69 public:
70 DeathObserver(ComposerService& mgr) : mComposerService(mgr) { }
71 };
72
73 mDeathObserver = new DeathObserver(*const_cast<ComposerService*>(this));
74 mComposerService->asBinder()->linkToDeath(mDeathObserver);
75 }
76
getComposerService()77 /*static*/ sp<ISurfaceComposer> ComposerService::getComposerService() {
78 ComposerService& instance = ComposerService::getInstance();
79 Mutex::Autolock _l(instance.mLock);
80 if (instance.mComposerService == NULL) {
81 ComposerService::getInstance().connectLocked();
82 assert(instance.mComposerService != NULL);
83 ALOGD("ComposerService reconnected");
84 }
85 return instance.mComposerService;
86 }
87
composerServiceDied()88 void ComposerService::composerServiceDied()
89 {
90 Mutex::Autolock _l(mLock);
91 mComposerService = NULL;
92 mDeathObserver = NULL;
93 }
94
95 // ---------------------------------------------------------------------------
96
97 static inline
compare_type(const ComposerState & lhs,const ComposerState & rhs)98 int compare_type(const ComposerState& lhs, const ComposerState& rhs) {
99 if (lhs.client < rhs.client) return -1;
100 if (lhs.client > rhs.client) return 1;
101 if (lhs.state.surface < rhs.state.surface) return -1;
102 if (lhs.state.surface > rhs.state.surface) return 1;
103 return 0;
104 }
105
106 static inline
compare_type(const DisplayState & lhs,const DisplayState & rhs)107 int compare_type(const DisplayState& lhs, const DisplayState& rhs) {
108 return compare_type(lhs.token, rhs.token);
109 }
110
111 class Composer : public Singleton<Composer>
112 {
113 friend class Singleton<Composer>;
114
115 mutable Mutex mLock;
116 SortedVector<ComposerState> mComposerStates;
117 SortedVector<DisplayState > mDisplayStates;
118 uint32_t mForceSynchronous;
119 uint32_t mTransactionNestCount;
120 bool mAnimation;
121
Composer()122 Composer() : Singleton<Composer>(),
123 mForceSynchronous(0), mTransactionNestCount(0),
124 mAnimation(false)
125 { }
126
127 void openGlobalTransactionImpl();
128 void closeGlobalTransactionImpl(bool synchronous);
129 void setAnimationTransactionImpl();
130
131 layer_state_t* getLayerStateLocked(
132 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id);
133
134 DisplayState& getDisplayStateLocked(const sp<IBinder>& token);
135
136 public:
137 sp<IBinder> createDisplay(const String8& displayName, bool secure);
138 void destroyDisplay(const sp<IBinder>& display);
139 sp<IBinder> getBuiltInDisplay(int32_t id);
140
141 status_t setPosition(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
142 float x, float y);
143 status_t setSize(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
144 uint32_t w, uint32_t h);
145 status_t setLayer(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
146 int32_t z);
147 status_t setFlags(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
148 uint32_t flags, uint32_t mask);
149 status_t setTransparentRegionHint(
150 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
151 const Region& transparentRegion);
152 status_t setAlpha(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
153 float alpha);
154 status_t setMatrix(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
155 float dsdx, float dtdx, float dsdy, float dtdy);
156 status_t setOrientation(int orientation);
157 status_t setCrop(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
158 const Rect& crop);
159 status_t setLayerStack(const sp<SurfaceComposerClient>& client,
160 const sp<IBinder>& id, uint32_t layerStack);
161
162 void setDisplaySurface(const sp<IBinder>& token,
163 const sp<IGraphicBufferProducer>& bufferProducer);
164 void setDisplayLayerStack(const sp<IBinder>& token, uint32_t layerStack);
165 void setDisplayProjection(const sp<IBinder>& token,
166 uint32_t orientation,
167 const Rect& layerStackRect,
168 const Rect& displayRect);
169
setAnimationTransaction()170 static void setAnimationTransaction() {
171 Composer::getInstance().setAnimationTransactionImpl();
172 }
173
openGlobalTransaction()174 static void openGlobalTransaction() {
175 Composer::getInstance().openGlobalTransactionImpl();
176 }
177
closeGlobalTransaction(bool synchronous)178 static void closeGlobalTransaction(bool synchronous) {
179 Composer::getInstance().closeGlobalTransactionImpl(synchronous);
180 }
181 };
182
183 ANDROID_SINGLETON_STATIC_INSTANCE(Composer);
184
185 // ---------------------------------------------------------------------------
186
createDisplay(const String8 & displayName,bool secure)187 sp<IBinder> Composer::createDisplay(const String8& displayName, bool secure) {
188 return ComposerService::getComposerService()->createDisplay(displayName,
189 secure);
190 }
191
destroyDisplay(const sp<IBinder> & display)192 void Composer::destroyDisplay(const sp<IBinder>& display) {
193 return ComposerService::getComposerService()->destroyDisplay(display);
194 }
195
getBuiltInDisplay(int32_t id)196 sp<IBinder> Composer::getBuiltInDisplay(int32_t id) {
197 return ComposerService::getComposerService()->getBuiltInDisplay(id);
198 }
199
openGlobalTransactionImpl()200 void Composer::openGlobalTransactionImpl() {
201 { // scope for the lock
202 Mutex::Autolock _l(mLock);
203 mTransactionNestCount += 1;
204 }
205 }
206
closeGlobalTransactionImpl(bool synchronous)207 void Composer::closeGlobalTransactionImpl(bool synchronous) {
208 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
209
210 Vector<ComposerState> transaction;
211 Vector<DisplayState> displayTransaction;
212 uint32_t flags = 0;
213
214 { // scope for the lock
215 Mutex::Autolock _l(mLock);
216 mForceSynchronous |= synchronous;
217 if (!mTransactionNestCount) {
218 ALOGW("At least one call to closeGlobalTransaction() was not matched by a prior "
219 "call to openGlobalTransaction().");
220 } else if (--mTransactionNestCount) {
221 return;
222 }
223
224 transaction = mComposerStates;
225 mComposerStates.clear();
226
227 displayTransaction = mDisplayStates;
228 mDisplayStates.clear();
229
230 if (mForceSynchronous) {
231 flags |= ISurfaceComposer::eSynchronous;
232 }
233 if (mAnimation) {
234 flags |= ISurfaceComposer::eAnimation;
235 }
236
237 mForceSynchronous = false;
238 mAnimation = false;
239 }
240
241 sm->setTransactionState(transaction, displayTransaction, flags);
242 }
243
setAnimationTransactionImpl()244 void Composer::setAnimationTransactionImpl() {
245 Mutex::Autolock _l(mLock);
246 mAnimation = true;
247 }
248
getLayerStateLocked(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id)249 layer_state_t* Composer::getLayerStateLocked(
250 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id) {
251
252 ComposerState s;
253 s.client = client->mClient;
254 s.state.surface = id;
255
256 ssize_t index = mComposerStates.indexOf(s);
257 if (index < 0) {
258 // we don't have it, add an initialized layer_state to our list
259 index = mComposerStates.add(s);
260 }
261
262 ComposerState* const out = mComposerStates.editArray();
263 return &(out[index].state);
264 }
265
setPosition(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float x,float y)266 status_t Composer::setPosition(const sp<SurfaceComposerClient>& client,
267 const sp<IBinder>& id, float x, float y) {
268 Mutex::Autolock _l(mLock);
269 layer_state_t* s = getLayerStateLocked(client, id);
270 if (!s)
271 return BAD_INDEX;
272 s->what |= layer_state_t::ePositionChanged;
273 s->x = x;
274 s->y = y;
275 return NO_ERROR;
276 }
277
setSize(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t w,uint32_t h)278 status_t Composer::setSize(const sp<SurfaceComposerClient>& client,
279 const sp<IBinder>& id, uint32_t w, uint32_t h) {
280 Mutex::Autolock _l(mLock);
281 layer_state_t* s = getLayerStateLocked(client, id);
282 if (!s)
283 return BAD_INDEX;
284 s->what |= layer_state_t::eSizeChanged;
285 s->w = w;
286 s->h = h;
287
288 // Resizing a surface makes the transaction synchronous.
289 mForceSynchronous = true;
290
291 return NO_ERROR;
292 }
293
setLayer(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,int32_t z)294 status_t Composer::setLayer(const sp<SurfaceComposerClient>& client,
295 const sp<IBinder>& id, int32_t z) {
296 Mutex::Autolock _l(mLock);
297 layer_state_t* s = getLayerStateLocked(client, id);
298 if (!s)
299 return BAD_INDEX;
300 s->what |= layer_state_t::eLayerChanged;
301 s->z = z;
302 return NO_ERROR;
303 }
304
setFlags(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t flags,uint32_t mask)305 status_t Composer::setFlags(const sp<SurfaceComposerClient>& client,
306 const sp<IBinder>& id, uint32_t flags,
307 uint32_t mask) {
308 Mutex::Autolock _l(mLock);
309 layer_state_t* s = getLayerStateLocked(client, id);
310 if (!s)
311 return BAD_INDEX;
312 s->what |= layer_state_t::eVisibilityChanged;
313 s->flags &= ~mask;
314 s->flags |= (flags & mask);
315 s->mask |= mask;
316 return NO_ERROR;
317 }
318
setTransparentRegionHint(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,const Region & transparentRegion)319 status_t Composer::setTransparentRegionHint(
320 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
321 const Region& transparentRegion) {
322 Mutex::Autolock _l(mLock);
323 layer_state_t* s = getLayerStateLocked(client, id);
324 if (!s)
325 return BAD_INDEX;
326 s->what |= layer_state_t::eTransparentRegionChanged;
327 s->transparentRegion = transparentRegion;
328 return NO_ERROR;
329 }
330
setAlpha(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float alpha)331 status_t Composer::setAlpha(const sp<SurfaceComposerClient>& client,
332 const sp<IBinder>& id, float alpha) {
333 Mutex::Autolock _l(mLock);
334 layer_state_t* s = getLayerStateLocked(client, id);
335 if (!s)
336 return BAD_INDEX;
337 s->what |= layer_state_t::eAlphaChanged;
338 s->alpha = alpha;
339 return NO_ERROR;
340 }
341
setLayerStack(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t layerStack)342 status_t Composer::setLayerStack(const sp<SurfaceComposerClient>& client,
343 const sp<IBinder>& id, uint32_t layerStack) {
344 Mutex::Autolock _l(mLock);
345 layer_state_t* s = getLayerStateLocked(client, id);
346 if (!s)
347 return BAD_INDEX;
348 s->what |= layer_state_t::eLayerStackChanged;
349 s->layerStack = layerStack;
350 return NO_ERROR;
351 }
352
setMatrix(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float dsdx,float dtdx,float dsdy,float dtdy)353 status_t Composer::setMatrix(const sp<SurfaceComposerClient>& client,
354 const sp<IBinder>& id, float dsdx, float dtdx,
355 float dsdy, float dtdy) {
356 Mutex::Autolock _l(mLock);
357 layer_state_t* s = getLayerStateLocked(client, id);
358 if (!s)
359 return BAD_INDEX;
360 s->what |= layer_state_t::eMatrixChanged;
361 layer_state_t::matrix22_t matrix;
362 matrix.dsdx = dsdx;
363 matrix.dtdx = dtdx;
364 matrix.dsdy = dsdy;
365 matrix.dtdy = dtdy;
366 s->matrix = matrix;
367 return NO_ERROR;
368 }
369
setCrop(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,const Rect & crop)370 status_t Composer::setCrop(const sp<SurfaceComposerClient>& client,
371 const sp<IBinder>& id, const Rect& crop) {
372 Mutex::Autolock _l(mLock);
373 layer_state_t* s = getLayerStateLocked(client, id);
374 if (!s)
375 return BAD_INDEX;
376 s->what |= layer_state_t::eCropChanged;
377 s->crop = crop;
378 return NO_ERROR;
379 }
380
381 // ---------------------------------------------------------------------------
382
getDisplayStateLocked(const sp<IBinder> & token)383 DisplayState& Composer::getDisplayStateLocked(const sp<IBinder>& token) {
384 DisplayState s;
385 s.token = token;
386 ssize_t index = mDisplayStates.indexOf(s);
387 if (index < 0) {
388 // we don't have it, add an initialized layer_state to our list
389 s.what = 0;
390 index = mDisplayStates.add(s);
391 }
392 return mDisplayStates.editItemAt(index);
393 }
394
setDisplaySurface(const sp<IBinder> & token,const sp<IGraphicBufferProducer> & bufferProducer)395 void Composer::setDisplaySurface(const sp<IBinder>& token,
396 const sp<IGraphicBufferProducer>& bufferProducer) {
397 Mutex::Autolock _l(mLock);
398 DisplayState& s(getDisplayStateLocked(token));
399 s.surface = bufferProducer;
400 s.what |= DisplayState::eSurfaceChanged;
401 }
402
setDisplayLayerStack(const sp<IBinder> & token,uint32_t layerStack)403 void Composer::setDisplayLayerStack(const sp<IBinder>& token,
404 uint32_t layerStack) {
405 Mutex::Autolock _l(mLock);
406 DisplayState& s(getDisplayStateLocked(token));
407 s.layerStack = layerStack;
408 s.what |= DisplayState::eLayerStackChanged;
409 }
410
setDisplayProjection(const sp<IBinder> & token,uint32_t orientation,const Rect & layerStackRect,const Rect & displayRect)411 void Composer::setDisplayProjection(const sp<IBinder>& token,
412 uint32_t orientation,
413 const Rect& layerStackRect,
414 const Rect& displayRect) {
415 Mutex::Autolock _l(mLock);
416 DisplayState& s(getDisplayStateLocked(token));
417 s.orientation = orientation;
418 s.viewport = layerStackRect;
419 s.frame = displayRect;
420 s.what |= DisplayState::eDisplayProjectionChanged;
421 mForceSynchronous = true; // TODO: do we actually still need this?
422 }
423
424 // ---------------------------------------------------------------------------
425
SurfaceComposerClient()426 SurfaceComposerClient::SurfaceComposerClient()
427 : mStatus(NO_INIT), mComposer(Composer::getInstance())
428 {
429 }
430
onFirstRef()431 void SurfaceComposerClient::onFirstRef() {
432 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
433 if (sm != 0) {
434 sp<ISurfaceComposerClient> conn = sm->createConnection();
435 if (conn != 0) {
436 mClient = conn;
437 mStatus = NO_ERROR;
438 }
439 }
440 }
441
~SurfaceComposerClient()442 SurfaceComposerClient::~SurfaceComposerClient() {
443 dispose();
444 }
445
initCheck() const446 status_t SurfaceComposerClient::initCheck() const {
447 return mStatus;
448 }
449
connection() const450 sp<IBinder> SurfaceComposerClient::connection() const {
451 return (mClient != 0) ? mClient->asBinder() : 0;
452 }
453
linkToComposerDeath(const sp<IBinder::DeathRecipient> & recipient,void * cookie,uint32_t flags)454 status_t SurfaceComposerClient::linkToComposerDeath(
455 const sp<IBinder::DeathRecipient>& recipient,
456 void* cookie, uint32_t flags) {
457 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
458 return sm->asBinder()->linkToDeath(recipient, cookie, flags);
459 }
460
dispose()461 void SurfaceComposerClient::dispose() {
462 // this can be called more than once.
463 sp<ISurfaceComposerClient> client;
464 Mutex::Autolock _lm(mLock);
465 if (mClient != 0) {
466 client = mClient; // hold ref while lock is held
467 mClient.clear();
468 }
469 mStatus = NO_INIT;
470 }
471
createSurface(const String8 & name,uint32_t w,uint32_t h,PixelFormat format,uint32_t flags)472 sp<SurfaceControl> SurfaceComposerClient::createSurface(
473 const String8& name,
474 uint32_t w,
475 uint32_t h,
476 PixelFormat format,
477 uint32_t flags)
478 {
479 sp<SurfaceControl> sur;
480 if (mStatus == NO_ERROR) {
481 sp<IBinder> handle;
482 sp<IGraphicBufferProducer> gbp;
483 status_t err = mClient->createSurface(name, w, h, format, flags,
484 &handle, &gbp);
485 ALOGE_IF(err, "SurfaceComposerClient::createSurface error %s", strerror(-err));
486 if (err == NO_ERROR) {
487 sur = new SurfaceControl(this, handle, gbp);
488 }
489 }
490 return sur;
491 }
492
createDisplay(const String8 & displayName,bool secure)493 sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName,
494 bool secure) {
495 return Composer::getInstance().createDisplay(displayName, secure);
496 }
497
destroyDisplay(const sp<IBinder> & display)498 void SurfaceComposerClient::destroyDisplay(const sp<IBinder>& display) {
499 Composer::getInstance().destroyDisplay(display);
500 }
501
getBuiltInDisplay(int32_t id)502 sp<IBinder> SurfaceComposerClient::getBuiltInDisplay(int32_t id) {
503 return Composer::getInstance().getBuiltInDisplay(id);
504 }
505
destroySurface(const sp<IBinder> & sid)506 status_t SurfaceComposerClient::destroySurface(const sp<IBinder>& sid) {
507 if (mStatus != NO_ERROR)
508 return mStatus;
509 status_t err = mClient->destroySurface(sid);
510 return err;
511 }
512
getComposer()513 inline Composer& SurfaceComposerClient::getComposer() {
514 return mComposer;
515 }
516
517 // ----------------------------------------------------------------------------
518
openGlobalTransaction()519 void SurfaceComposerClient::openGlobalTransaction() {
520 Composer::openGlobalTransaction();
521 }
522
closeGlobalTransaction(bool synchronous)523 void SurfaceComposerClient::closeGlobalTransaction(bool synchronous) {
524 Composer::closeGlobalTransaction(synchronous);
525 }
526
setAnimationTransaction()527 void SurfaceComposerClient::setAnimationTransaction() {
528 Composer::setAnimationTransaction();
529 }
530
531 // ----------------------------------------------------------------------------
532
setCrop(const sp<IBinder> & id,const Rect & crop)533 status_t SurfaceComposerClient::setCrop(const sp<IBinder>& id, const Rect& crop) {
534 return getComposer().setCrop(this, id, crop);
535 }
536
setPosition(const sp<IBinder> & id,float x,float y)537 status_t SurfaceComposerClient::setPosition(const sp<IBinder>& id, float x, float y) {
538 return getComposer().setPosition(this, id, x, y);
539 }
540
setSize(const sp<IBinder> & id,uint32_t w,uint32_t h)541 status_t SurfaceComposerClient::setSize(const sp<IBinder>& id, uint32_t w, uint32_t h) {
542 return getComposer().setSize(this, id, w, h);
543 }
544
setLayer(const sp<IBinder> & id,int32_t z)545 status_t SurfaceComposerClient::setLayer(const sp<IBinder>& id, int32_t z) {
546 return getComposer().setLayer(this, id, z);
547 }
548
hide(const sp<IBinder> & id)549 status_t SurfaceComposerClient::hide(const sp<IBinder>& id) {
550 return getComposer().setFlags(this, id,
551 layer_state_t::eLayerHidden,
552 layer_state_t::eLayerHidden);
553 }
554
show(const sp<IBinder> & id)555 status_t SurfaceComposerClient::show(const sp<IBinder>& id) {
556 return getComposer().setFlags(this, id,
557 0,
558 layer_state_t::eLayerHidden);
559 }
560
setFlags(const sp<IBinder> & id,uint32_t flags,uint32_t mask)561 status_t SurfaceComposerClient::setFlags(const sp<IBinder>& id, uint32_t flags,
562 uint32_t mask) {
563 return getComposer().setFlags(this, id, flags, mask);
564 }
565
setTransparentRegionHint(const sp<IBinder> & id,const Region & transparentRegion)566 status_t SurfaceComposerClient::setTransparentRegionHint(const sp<IBinder>& id,
567 const Region& transparentRegion) {
568 return getComposer().setTransparentRegionHint(this, id, transparentRegion);
569 }
570
setAlpha(const sp<IBinder> & id,float alpha)571 status_t SurfaceComposerClient::setAlpha(const sp<IBinder>& id, float alpha) {
572 return getComposer().setAlpha(this, id, alpha);
573 }
574
setLayerStack(const sp<IBinder> & id,uint32_t layerStack)575 status_t SurfaceComposerClient::setLayerStack(const sp<IBinder>& id, uint32_t layerStack) {
576 return getComposer().setLayerStack(this, id, layerStack);
577 }
578
setMatrix(const sp<IBinder> & id,float dsdx,float dtdx,float dsdy,float dtdy)579 status_t SurfaceComposerClient::setMatrix(const sp<IBinder>& id, float dsdx, float dtdx,
580 float dsdy, float dtdy) {
581 return getComposer().setMatrix(this, id, dsdx, dtdx, dsdy, dtdy);
582 }
583
584 // ----------------------------------------------------------------------------
585
setDisplaySurface(const sp<IBinder> & token,const sp<IGraphicBufferProducer> & bufferProducer)586 void SurfaceComposerClient::setDisplaySurface(const sp<IBinder>& token,
587 const sp<IGraphicBufferProducer>& bufferProducer) {
588 Composer::getInstance().setDisplaySurface(token, bufferProducer);
589 }
590
setDisplayLayerStack(const sp<IBinder> & token,uint32_t layerStack)591 void SurfaceComposerClient::setDisplayLayerStack(const sp<IBinder>& token,
592 uint32_t layerStack) {
593 Composer::getInstance().setDisplayLayerStack(token, layerStack);
594 }
595
setDisplayProjection(const sp<IBinder> & token,uint32_t orientation,const Rect & layerStackRect,const Rect & displayRect)596 void SurfaceComposerClient::setDisplayProjection(const sp<IBinder>& token,
597 uint32_t orientation,
598 const Rect& layerStackRect,
599 const Rect& displayRect) {
600 Composer::getInstance().setDisplayProjection(token, orientation,
601 layerStackRect, displayRect);
602 }
603
604 // ----------------------------------------------------------------------------
605
getDisplayInfo(const sp<IBinder> & display,DisplayInfo * info)606 status_t SurfaceComposerClient::getDisplayInfo(
607 const sp<IBinder>& display, DisplayInfo* info)
608 {
609 return ComposerService::getComposerService()->getDisplayInfo(display, info);
610 }
611
blankDisplay(const sp<IBinder> & token)612 void SurfaceComposerClient::blankDisplay(const sp<IBinder>& token) {
613 ComposerService::getComposerService()->blank(token);
614 }
615
unblankDisplay(const sp<IBinder> & token)616 void SurfaceComposerClient::unblankDisplay(const sp<IBinder>& token) {
617 ComposerService::getComposerService()->unblank(token);
618 }
619
620 // ----------------------------------------------------------------------------
621
capture(const sp<IBinder> & display,const sp<IGraphicBufferProducer> & producer,uint32_t reqWidth,uint32_t reqHeight,uint32_t minLayerZ,uint32_t maxLayerZ)622 status_t ScreenshotClient::capture(
623 const sp<IBinder>& display,
624 const sp<IGraphicBufferProducer>& producer,
625 uint32_t reqWidth, uint32_t reqHeight,
626 uint32_t minLayerZ, uint32_t maxLayerZ) {
627 sp<ISurfaceComposer> s(ComposerService::getComposerService());
628 if (s == NULL) return NO_INIT;
629 return s->captureScreen(display, producer,
630 reqWidth, reqHeight, minLayerZ, maxLayerZ);
631 }
632
ScreenshotClient()633 ScreenshotClient::ScreenshotClient()
634 : mHaveBuffer(false) {
635 memset(&mBuffer, 0, sizeof(mBuffer));
636 }
637
~ScreenshotClient()638 ScreenshotClient::~ScreenshotClient() {
639 ScreenshotClient::release();
640 }
641
getCpuConsumer() const642 sp<CpuConsumer> ScreenshotClient::getCpuConsumer() const {
643 if (mCpuConsumer == NULL) {
644 mBufferQueue = new BufferQueue();
645 mCpuConsumer = new CpuConsumer(mBufferQueue, 1);
646 mCpuConsumer->setName(String8("ScreenshotClient"));
647 }
648 return mCpuConsumer;
649 }
650
update(const sp<IBinder> & display,uint32_t reqWidth,uint32_t reqHeight,uint32_t minLayerZ,uint32_t maxLayerZ)651 status_t ScreenshotClient::update(const sp<IBinder>& display,
652 uint32_t reqWidth, uint32_t reqHeight,
653 uint32_t minLayerZ, uint32_t maxLayerZ) {
654 sp<ISurfaceComposer> s(ComposerService::getComposerService());
655 if (s == NULL) return NO_INIT;
656 sp<CpuConsumer> cpuConsumer = getCpuConsumer();
657
658 if (mHaveBuffer) {
659 mCpuConsumer->unlockBuffer(mBuffer);
660 memset(&mBuffer, 0, sizeof(mBuffer));
661 mHaveBuffer = false;
662 }
663
664 status_t err = s->captureScreen(display, mBufferQueue,
665 reqWidth, reqHeight, minLayerZ, maxLayerZ);
666
667 if (err == NO_ERROR) {
668 err = mCpuConsumer->lockNextBuffer(&mBuffer);
669 if (err == NO_ERROR) {
670 mHaveBuffer = true;
671 }
672 }
673 return err;
674 }
675
update(const sp<IBinder> & display)676 status_t ScreenshotClient::update(const sp<IBinder>& display) {
677 return ScreenshotClient::update(display, 0, 0, 0, -1UL);
678 }
679
update(const sp<IBinder> & display,uint32_t reqWidth,uint32_t reqHeight)680 status_t ScreenshotClient::update(const sp<IBinder>& display,
681 uint32_t reqWidth, uint32_t reqHeight) {
682 return ScreenshotClient::update(display, reqWidth, reqHeight, 0, -1UL);
683 }
684
release()685 void ScreenshotClient::release() {
686 if (mHaveBuffer) {
687 mCpuConsumer->unlockBuffer(mBuffer);
688 memset(&mBuffer, 0, sizeof(mBuffer));
689 mHaveBuffer = false;
690 }
691 mCpuConsumer.clear();
692 }
693
getPixels() const694 void const* ScreenshotClient::getPixels() const {
695 return mBuffer.data;
696 }
697
getWidth() const698 uint32_t ScreenshotClient::getWidth() const {
699 return mBuffer.width;
700 }
701
getHeight() const702 uint32_t ScreenshotClient::getHeight() const {
703 return mBuffer.height;
704 }
705
getFormat() const706 PixelFormat ScreenshotClient::getFormat() const {
707 return mBuffer.format;
708 }
709
getStride() const710 uint32_t ScreenshotClient::getStride() const {
711 return mBuffer.stride;
712 }
713
getSize() const714 size_t ScreenshotClient::getSize() const {
715 return mBuffer.stride * mBuffer.height * bytesPerPixel(mBuffer.format);
716 }
717
718 // ----------------------------------------------------------------------------
719 }; // namespace android
720