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 sp<IBinder> getBuiltInDisplay(int32_t id);
139
140 status_t setPosition(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
141 float x, float y);
142 status_t setSize(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
143 uint32_t w, uint32_t h);
144 status_t setLayer(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
145 int32_t z);
146 status_t setFlags(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
147 uint32_t flags, uint32_t mask);
148 status_t setTransparentRegionHint(
149 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
150 const Region& transparentRegion);
151 status_t setAlpha(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
152 float alpha);
153 status_t setMatrix(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
154 float dsdx, float dtdx, float dsdy, float dtdy);
155 status_t setOrientation(int orientation);
156 status_t setCrop(const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
157 const Rect& crop);
158 status_t setLayerStack(const sp<SurfaceComposerClient>& client,
159 const sp<IBinder>& id, uint32_t layerStack);
160
161 void setDisplaySurface(const sp<IBinder>& token,
162 const sp<IGraphicBufferProducer>& bufferProducer);
163 void setDisplayLayerStack(const sp<IBinder>& token, uint32_t layerStack);
164 void setDisplayProjection(const sp<IBinder>& token,
165 uint32_t orientation,
166 const Rect& layerStackRect,
167 const Rect& displayRect);
168
setAnimationTransaction()169 static void setAnimationTransaction() {
170 Composer::getInstance().setAnimationTransactionImpl();
171 }
172
openGlobalTransaction()173 static void openGlobalTransaction() {
174 Composer::getInstance().openGlobalTransactionImpl();
175 }
176
closeGlobalTransaction(bool synchronous)177 static void closeGlobalTransaction(bool synchronous) {
178 Composer::getInstance().closeGlobalTransactionImpl(synchronous);
179 }
180 };
181
182 ANDROID_SINGLETON_STATIC_INSTANCE(Composer);
183
184 // ---------------------------------------------------------------------------
185
createDisplay(const String8 & displayName,bool secure)186 sp<IBinder> Composer::createDisplay(const String8& displayName, bool secure) {
187 return ComposerService::getComposerService()->createDisplay(displayName,
188 secure);
189 }
190
getBuiltInDisplay(int32_t id)191 sp<IBinder> Composer::getBuiltInDisplay(int32_t id) {
192 return ComposerService::getComposerService()->getBuiltInDisplay(id);
193 }
194
openGlobalTransactionImpl()195 void Composer::openGlobalTransactionImpl() {
196 { // scope for the lock
197 Mutex::Autolock _l(mLock);
198 mTransactionNestCount += 1;
199 }
200 }
201
closeGlobalTransactionImpl(bool synchronous)202 void Composer::closeGlobalTransactionImpl(bool synchronous) {
203 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
204
205 Vector<ComposerState> transaction;
206 Vector<DisplayState> displayTransaction;
207 uint32_t flags = 0;
208
209 { // scope for the lock
210 Mutex::Autolock _l(mLock);
211 mForceSynchronous |= synchronous;
212 if (!mTransactionNestCount) {
213 ALOGW("At least one call to closeGlobalTransaction() was not matched by a prior "
214 "call to openGlobalTransaction().");
215 } else if (--mTransactionNestCount) {
216 return;
217 }
218
219 transaction = mComposerStates;
220 mComposerStates.clear();
221
222 displayTransaction = mDisplayStates;
223 mDisplayStates.clear();
224
225 if (mForceSynchronous) {
226 flags |= ISurfaceComposer::eSynchronous;
227 }
228 if (mAnimation) {
229 flags |= ISurfaceComposer::eAnimation;
230 }
231
232 mForceSynchronous = false;
233 mAnimation = false;
234 }
235
236 sm->setTransactionState(transaction, displayTransaction, flags);
237 }
238
setAnimationTransactionImpl()239 void Composer::setAnimationTransactionImpl() {
240 Mutex::Autolock _l(mLock);
241 mAnimation = true;
242 }
243
getLayerStateLocked(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id)244 layer_state_t* Composer::getLayerStateLocked(
245 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id) {
246
247 ComposerState s;
248 s.client = client->mClient;
249 s.state.surface = id;
250
251 ssize_t index = mComposerStates.indexOf(s);
252 if (index < 0) {
253 // we don't have it, add an initialized layer_state to our list
254 index = mComposerStates.add(s);
255 }
256
257 ComposerState* const out = mComposerStates.editArray();
258 return &(out[index].state);
259 }
260
setPosition(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float x,float y)261 status_t Composer::setPosition(const sp<SurfaceComposerClient>& client,
262 const sp<IBinder>& id, float x, float y) {
263 Mutex::Autolock _l(mLock);
264 layer_state_t* s = getLayerStateLocked(client, id);
265 if (!s)
266 return BAD_INDEX;
267 s->what |= layer_state_t::ePositionChanged;
268 s->x = x;
269 s->y = y;
270 return NO_ERROR;
271 }
272
setSize(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t w,uint32_t h)273 status_t Composer::setSize(const sp<SurfaceComposerClient>& client,
274 const sp<IBinder>& id, uint32_t w, uint32_t h) {
275 Mutex::Autolock _l(mLock);
276 layer_state_t* s = getLayerStateLocked(client, id);
277 if (!s)
278 return BAD_INDEX;
279 s->what |= layer_state_t::eSizeChanged;
280 s->w = w;
281 s->h = h;
282
283 // Resizing a surface makes the transaction synchronous.
284 mForceSynchronous = true;
285
286 return NO_ERROR;
287 }
288
setLayer(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,int32_t z)289 status_t Composer::setLayer(const sp<SurfaceComposerClient>& client,
290 const sp<IBinder>& id, int32_t z) {
291 Mutex::Autolock _l(mLock);
292 layer_state_t* s = getLayerStateLocked(client, id);
293 if (!s)
294 return BAD_INDEX;
295 s->what |= layer_state_t::eLayerChanged;
296 s->z = z;
297 return NO_ERROR;
298 }
299
setFlags(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t flags,uint32_t mask)300 status_t Composer::setFlags(const sp<SurfaceComposerClient>& client,
301 const sp<IBinder>& id, uint32_t flags,
302 uint32_t mask) {
303 Mutex::Autolock _l(mLock);
304 layer_state_t* s = getLayerStateLocked(client, id);
305 if (!s)
306 return BAD_INDEX;
307 s->what |= layer_state_t::eVisibilityChanged;
308 s->flags &= ~mask;
309 s->flags |= (flags & mask);
310 s->mask |= mask;
311 return NO_ERROR;
312 }
313
setTransparentRegionHint(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,const Region & transparentRegion)314 status_t Composer::setTransparentRegionHint(
315 const sp<SurfaceComposerClient>& client, const sp<IBinder>& id,
316 const Region& transparentRegion) {
317 Mutex::Autolock _l(mLock);
318 layer_state_t* s = getLayerStateLocked(client, id);
319 if (!s)
320 return BAD_INDEX;
321 s->what |= layer_state_t::eTransparentRegionChanged;
322 s->transparentRegion = transparentRegion;
323 return NO_ERROR;
324 }
325
setAlpha(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float alpha)326 status_t Composer::setAlpha(const sp<SurfaceComposerClient>& client,
327 const sp<IBinder>& id, float alpha) {
328 Mutex::Autolock _l(mLock);
329 layer_state_t* s = getLayerStateLocked(client, id);
330 if (!s)
331 return BAD_INDEX;
332 s->what |= layer_state_t::eAlphaChanged;
333 s->alpha = alpha;
334 return NO_ERROR;
335 }
336
setLayerStack(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,uint32_t layerStack)337 status_t Composer::setLayerStack(const sp<SurfaceComposerClient>& client,
338 const sp<IBinder>& id, uint32_t layerStack) {
339 Mutex::Autolock _l(mLock);
340 layer_state_t* s = getLayerStateLocked(client, id);
341 if (!s)
342 return BAD_INDEX;
343 s->what |= layer_state_t::eLayerStackChanged;
344 s->layerStack = layerStack;
345 return NO_ERROR;
346 }
347
setMatrix(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,float dsdx,float dtdx,float dsdy,float dtdy)348 status_t Composer::setMatrix(const sp<SurfaceComposerClient>& client,
349 const sp<IBinder>& id, float dsdx, float dtdx,
350 float dsdy, float dtdy) {
351 Mutex::Autolock _l(mLock);
352 layer_state_t* s = getLayerStateLocked(client, id);
353 if (!s)
354 return BAD_INDEX;
355 s->what |= layer_state_t::eMatrixChanged;
356 layer_state_t::matrix22_t matrix;
357 matrix.dsdx = dsdx;
358 matrix.dtdx = dtdx;
359 matrix.dsdy = dsdy;
360 matrix.dtdy = dtdy;
361 s->matrix = matrix;
362 return NO_ERROR;
363 }
364
setCrop(const sp<SurfaceComposerClient> & client,const sp<IBinder> & id,const Rect & crop)365 status_t Composer::setCrop(const sp<SurfaceComposerClient>& client,
366 const sp<IBinder>& id, const Rect& crop) {
367 Mutex::Autolock _l(mLock);
368 layer_state_t* s = getLayerStateLocked(client, id);
369 if (!s)
370 return BAD_INDEX;
371 s->what |= layer_state_t::eCropChanged;
372 s->crop = crop;
373 return NO_ERROR;
374 }
375
376 // ---------------------------------------------------------------------------
377
getDisplayStateLocked(const sp<IBinder> & token)378 DisplayState& Composer::getDisplayStateLocked(const sp<IBinder>& token) {
379 DisplayState s;
380 s.token = token;
381 ssize_t index = mDisplayStates.indexOf(s);
382 if (index < 0) {
383 // we don't have it, add an initialized layer_state to our list
384 s.what = 0;
385 index = mDisplayStates.add(s);
386 }
387 return mDisplayStates.editItemAt(index);
388 }
389
setDisplaySurface(const sp<IBinder> & token,const sp<IGraphicBufferProducer> & bufferProducer)390 void Composer::setDisplaySurface(const sp<IBinder>& token,
391 const sp<IGraphicBufferProducer>& bufferProducer) {
392 Mutex::Autolock _l(mLock);
393 DisplayState& s(getDisplayStateLocked(token));
394 s.surface = bufferProducer;
395 s.what |= DisplayState::eSurfaceChanged;
396 }
397
setDisplayLayerStack(const sp<IBinder> & token,uint32_t layerStack)398 void Composer::setDisplayLayerStack(const sp<IBinder>& token,
399 uint32_t layerStack) {
400 Mutex::Autolock _l(mLock);
401 DisplayState& s(getDisplayStateLocked(token));
402 s.layerStack = layerStack;
403 s.what |= DisplayState::eLayerStackChanged;
404 }
405
setDisplayProjection(const sp<IBinder> & token,uint32_t orientation,const Rect & layerStackRect,const Rect & displayRect)406 void Composer::setDisplayProjection(const sp<IBinder>& token,
407 uint32_t orientation,
408 const Rect& layerStackRect,
409 const Rect& displayRect) {
410 Mutex::Autolock _l(mLock);
411 DisplayState& s(getDisplayStateLocked(token));
412 s.orientation = orientation;
413 s.viewport = layerStackRect;
414 s.frame = displayRect;
415 s.what |= DisplayState::eDisplayProjectionChanged;
416 mForceSynchronous = true; // TODO: do we actually still need this?
417 }
418
419 // ---------------------------------------------------------------------------
420
SurfaceComposerClient()421 SurfaceComposerClient::SurfaceComposerClient()
422 : mStatus(NO_INIT), mComposer(Composer::getInstance())
423 {
424 }
425
onFirstRef()426 void SurfaceComposerClient::onFirstRef() {
427 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
428 if (sm != 0) {
429 sp<ISurfaceComposerClient> conn = sm->createConnection();
430 if (conn != 0) {
431 mClient = conn;
432 mStatus = NO_ERROR;
433 }
434 }
435 }
436
~SurfaceComposerClient()437 SurfaceComposerClient::~SurfaceComposerClient() {
438 dispose();
439 }
440
initCheck() const441 status_t SurfaceComposerClient::initCheck() const {
442 return mStatus;
443 }
444
connection() const445 sp<IBinder> SurfaceComposerClient::connection() const {
446 return (mClient != 0) ? mClient->asBinder() : 0;
447 }
448
linkToComposerDeath(const sp<IBinder::DeathRecipient> & recipient,void * cookie,uint32_t flags)449 status_t SurfaceComposerClient::linkToComposerDeath(
450 const sp<IBinder::DeathRecipient>& recipient,
451 void* cookie, uint32_t flags) {
452 sp<ISurfaceComposer> sm(ComposerService::getComposerService());
453 return sm->asBinder()->linkToDeath(recipient, cookie, flags);
454 }
455
dispose()456 void SurfaceComposerClient::dispose() {
457 // this can be called more than once.
458 sp<ISurfaceComposerClient> client;
459 Mutex::Autolock _lm(mLock);
460 if (mClient != 0) {
461 client = mClient; // hold ref while lock is held
462 mClient.clear();
463 }
464 mStatus = NO_INIT;
465 }
466
createSurface(const String8 & name,uint32_t w,uint32_t h,PixelFormat format,uint32_t flags)467 sp<SurfaceControl> SurfaceComposerClient::createSurface(
468 const String8& name,
469 uint32_t w,
470 uint32_t h,
471 PixelFormat format,
472 uint32_t flags)
473 {
474 sp<SurfaceControl> sur;
475 if (mStatus == NO_ERROR) {
476 sp<IBinder> handle;
477 sp<IGraphicBufferProducer> gbp;
478 status_t err = mClient->createSurface(name, w, h, format, flags,
479 &handle, &gbp);
480 ALOGE_IF(err, "SurfaceComposerClient::createSurface error %s", strerror(-err));
481 if (err == NO_ERROR) {
482 sur = new SurfaceControl(this, handle, gbp);
483 }
484 }
485 return sur;
486 }
487
createDisplay(const String8 & displayName,bool secure)488 sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName,
489 bool secure) {
490 return Composer::getInstance().createDisplay(displayName, secure);
491 }
492
getBuiltInDisplay(int32_t id)493 sp<IBinder> SurfaceComposerClient::getBuiltInDisplay(int32_t id) {
494 return Composer::getInstance().getBuiltInDisplay(id);
495 }
496
destroySurface(const sp<IBinder> & sid)497 status_t SurfaceComposerClient::destroySurface(const sp<IBinder>& sid) {
498 if (mStatus != NO_ERROR)
499 return mStatus;
500 status_t err = mClient->destroySurface(sid);
501 return err;
502 }
503
getComposer()504 inline Composer& SurfaceComposerClient::getComposer() {
505 return mComposer;
506 }
507
508 // ----------------------------------------------------------------------------
509
openGlobalTransaction()510 void SurfaceComposerClient::openGlobalTransaction() {
511 Composer::openGlobalTransaction();
512 }
513
closeGlobalTransaction(bool synchronous)514 void SurfaceComposerClient::closeGlobalTransaction(bool synchronous) {
515 Composer::closeGlobalTransaction(synchronous);
516 }
517
setAnimationTransaction()518 void SurfaceComposerClient::setAnimationTransaction() {
519 Composer::setAnimationTransaction();
520 }
521
522 // ----------------------------------------------------------------------------
523
setCrop(const sp<IBinder> & id,const Rect & crop)524 status_t SurfaceComposerClient::setCrop(const sp<IBinder>& id, const Rect& crop) {
525 return getComposer().setCrop(this, id, crop);
526 }
527
setPosition(const sp<IBinder> & id,float x,float y)528 status_t SurfaceComposerClient::setPosition(const sp<IBinder>& id, float x, float y) {
529 return getComposer().setPosition(this, id, x, y);
530 }
531
setSize(const sp<IBinder> & id,uint32_t w,uint32_t h)532 status_t SurfaceComposerClient::setSize(const sp<IBinder>& id, uint32_t w, uint32_t h) {
533 return getComposer().setSize(this, id, w, h);
534 }
535
setLayer(const sp<IBinder> & id,int32_t z)536 status_t SurfaceComposerClient::setLayer(const sp<IBinder>& id, int32_t z) {
537 return getComposer().setLayer(this, id, z);
538 }
539
hide(const sp<IBinder> & id)540 status_t SurfaceComposerClient::hide(const sp<IBinder>& id) {
541 return getComposer().setFlags(this, id,
542 layer_state_t::eLayerHidden,
543 layer_state_t::eLayerHidden);
544 }
545
show(const sp<IBinder> & id)546 status_t SurfaceComposerClient::show(const sp<IBinder>& id) {
547 return getComposer().setFlags(this, id,
548 0,
549 layer_state_t::eLayerHidden);
550 }
551
setFlags(const sp<IBinder> & id,uint32_t flags,uint32_t mask)552 status_t SurfaceComposerClient::setFlags(const sp<IBinder>& id, uint32_t flags,
553 uint32_t mask) {
554 return getComposer().setFlags(this, id, flags, mask);
555 }
556
setTransparentRegionHint(const sp<IBinder> & id,const Region & transparentRegion)557 status_t SurfaceComposerClient::setTransparentRegionHint(const sp<IBinder>& id,
558 const Region& transparentRegion) {
559 return getComposer().setTransparentRegionHint(this, id, transparentRegion);
560 }
561
setAlpha(const sp<IBinder> & id,float alpha)562 status_t SurfaceComposerClient::setAlpha(const sp<IBinder>& id, float alpha) {
563 return getComposer().setAlpha(this, id, alpha);
564 }
565
setLayerStack(const sp<IBinder> & id,uint32_t layerStack)566 status_t SurfaceComposerClient::setLayerStack(const sp<IBinder>& id, uint32_t layerStack) {
567 return getComposer().setLayerStack(this, id, layerStack);
568 }
569
setMatrix(const sp<IBinder> & id,float dsdx,float dtdx,float dsdy,float dtdy)570 status_t SurfaceComposerClient::setMatrix(const sp<IBinder>& id, float dsdx, float dtdx,
571 float dsdy, float dtdy) {
572 return getComposer().setMatrix(this, id, dsdx, dtdx, dsdy, dtdy);
573 }
574
575 // ----------------------------------------------------------------------------
576
setDisplaySurface(const sp<IBinder> & token,const sp<IGraphicBufferProducer> & bufferProducer)577 void SurfaceComposerClient::setDisplaySurface(const sp<IBinder>& token,
578 const sp<IGraphicBufferProducer>& bufferProducer) {
579 Composer::getInstance().setDisplaySurface(token, bufferProducer);
580 }
581
setDisplayLayerStack(const sp<IBinder> & token,uint32_t layerStack)582 void SurfaceComposerClient::setDisplayLayerStack(const sp<IBinder>& token,
583 uint32_t layerStack) {
584 Composer::getInstance().setDisplayLayerStack(token, layerStack);
585 }
586
setDisplayProjection(const sp<IBinder> & token,uint32_t orientation,const Rect & layerStackRect,const Rect & displayRect)587 void SurfaceComposerClient::setDisplayProjection(const sp<IBinder>& token,
588 uint32_t orientation,
589 const Rect& layerStackRect,
590 const Rect& displayRect) {
591 Composer::getInstance().setDisplayProjection(token, orientation,
592 layerStackRect, displayRect);
593 }
594
595 // ----------------------------------------------------------------------------
596
getDisplayInfo(const sp<IBinder> & display,DisplayInfo * info)597 status_t SurfaceComposerClient::getDisplayInfo(
598 const sp<IBinder>& display, DisplayInfo* info)
599 {
600 return ComposerService::getComposerService()->getDisplayInfo(display, info);
601 }
602
blankDisplay(const sp<IBinder> & token)603 void SurfaceComposerClient::blankDisplay(const sp<IBinder>& token) {
604 ComposerService::getComposerService()->blank(token);
605 }
606
unblankDisplay(const sp<IBinder> & token)607 void SurfaceComposerClient::unblankDisplay(const sp<IBinder>& token) {
608 ComposerService::getComposerService()->unblank(token);
609 }
610
611 // ----------------------------------------------------------------------------
612
capture(const sp<IBinder> & display,const sp<IGraphicBufferProducer> & producer,uint32_t reqWidth,uint32_t reqHeight,uint32_t minLayerZ,uint32_t maxLayerZ)613 status_t ScreenshotClient::capture(
614 const sp<IBinder>& display,
615 const sp<IGraphicBufferProducer>& producer,
616 uint32_t reqWidth, uint32_t reqHeight,
617 uint32_t minLayerZ, uint32_t maxLayerZ) {
618 sp<ISurfaceComposer> s(ComposerService::getComposerService());
619 if (s == NULL) return NO_INIT;
620 return s->captureScreen(display, producer,
621 reqWidth, reqHeight, minLayerZ, maxLayerZ,
622 false);
623 }
624
ScreenshotClient()625 ScreenshotClient::ScreenshotClient()
626 : mHaveBuffer(false) {
627 memset(&mBuffer, 0, sizeof(mBuffer));
628 }
629
~ScreenshotClient()630 ScreenshotClient::~ScreenshotClient() {
631 ScreenshotClient::release();
632 }
633
getCpuConsumer() const634 sp<CpuConsumer> ScreenshotClient::getCpuConsumer() const {
635 if (mCpuConsumer == NULL) {
636 mCpuConsumer = new CpuConsumer(1);
637 mCpuConsumer->setName(String8("ScreenshotClient"));
638 }
639 return mCpuConsumer;
640 }
641
update(const sp<IBinder> & display,uint32_t reqWidth,uint32_t reqHeight,uint32_t minLayerZ,uint32_t maxLayerZ)642 status_t ScreenshotClient::update(const sp<IBinder>& display,
643 uint32_t reqWidth, uint32_t reqHeight,
644 uint32_t minLayerZ, uint32_t maxLayerZ) {
645 sp<ISurfaceComposer> s(ComposerService::getComposerService());
646 if (s == NULL) return NO_INIT;
647 sp<CpuConsumer> cpuConsumer = getCpuConsumer();
648
649 if (mHaveBuffer) {
650 mCpuConsumer->unlockBuffer(mBuffer);
651 memset(&mBuffer, 0, sizeof(mBuffer));
652 mHaveBuffer = false;
653 }
654
655 status_t err = s->captureScreen(display,cpuConsumer->getBufferQueue(),
656 reqWidth, reqHeight, minLayerZ, maxLayerZ, true);
657
658 if (err == NO_ERROR) {
659 err = mCpuConsumer->lockNextBuffer(&mBuffer);
660 if (err == NO_ERROR) {
661 mHaveBuffer = true;
662 }
663 }
664 return err;
665 }
666
update(const sp<IBinder> & display)667 status_t ScreenshotClient::update(const sp<IBinder>& display) {
668 return ScreenshotClient::update(display, 0, 0, 0, -1UL);
669 }
670
update(const sp<IBinder> & display,uint32_t reqWidth,uint32_t reqHeight)671 status_t ScreenshotClient::update(const sp<IBinder>& display,
672 uint32_t reqWidth, uint32_t reqHeight) {
673 return ScreenshotClient::update(display, reqWidth, reqHeight, 0, -1UL);
674 }
675
release()676 void ScreenshotClient::release() {
677 if (mHaveBuffer) {
678 mCpuConsumer->unlockBuffer(mBuffer);
679 memset(&mBuffer, 0, sizeof(mBuffer));
680 mHaveBuffer = false;
681 }
682 mCpuConsumer.clear();
683 }
684
getPixels() const685 void const* ScreenshotClient::getPixels() const {
686 return mBuffer.data;
687 }
688
getWidth() const689 uint32_t ScreenshotClient::getWidth() const {
690 return mBuffer.width;
691 }
692
getHeight() const693 uint32_t ScreenshotClient::getHeight() const {
694 return mBuffer.height;
695 }
696
getFormat() const697 PixelFormat ScreenshotClient::getFormat() const {
698 return mBuffer.format;
699 }
700
getStride() const701 uint32_t ScreenshotClient::getStride() const {
702 return mBuffer.stride;
703 }
704
getSize() const705 size_t ScreenshotClient::getSize() const {
706 return mBuffer.stride * mBuffer.height * bytesPerPixel(mBuffer.format);
707 }
708
709 // ----------------------------------------------------------------------------
710 }; // namespace android
711