1 /*
2 * Copyright (C) 2010 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 "Surface"
18 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
19 //#define LOG_NDEBUG 0
20
21 #include <android/native_window.h>
22
23 #include <binder/Parcel.h>
24
25 #include <utils/Log.h>
26 #include <utils/Trace.h>
27 #include <utils/NativeHandle.h>
28
29 #include <ui/Fence.h>
30
31 #include <gui/IProducerListener.h>
32 #include <gui/ISurfaceComposer.h>
33 #include <gui/SurfaceComposerClient.h>
34 #include <gui/GLConsumer.h>
35 #include <gui/Surface.h>
36
37 #include <private/gui/ComposerService.h>
38
39 namespace android {
40
Surface(const sp<IGraphicBufferProducer> & bufferProducer,bool controlledByApp)41 Surface::Surface(
42 const sp<IGraphicBufferProducer>& bufferProducer,
43 bool controlledByApp)
44 : mGraphicBufferProducer(bufferProducer)
45 {
46 // Initialize the ANativeWindow function pointers.
47 ANativeWindow::setSwapInterval = hook_setSwapInterval;
48 ANativeWindow::dequeueBuffer = hook_dequeueBuffer;
49 ANativeWindow::cancelBuffer = hook_cancelBuffer;
50 ANativeWindow::queueBuffer = hook_queueBuffer;
51 ANativeWindow::query = hook_query;
52 ANativeWindow::perform = hook_perform;
53
54 ANativeWindow::dequeueBuffer_DEPRECATED = hook_dequeueBuffer_DEPRECATED;
55 ANativeWindow::cancelBuffer_DEPRECATED = hook_cancelBuffer_DEPRECATED;
56 ANativeWindow::lockBuffer_DEPRECATED = hook_lockBuffer_DEPRECATED;
57 ANativeWindow::queueBuffer_DEPRECATED = hook_queueBuffer_DEPRECATED;
58
59 const_cast<int&>(ANativeWindow::minSwapInterval) = 0;
60 const_cast<int&>(ANativeWindow::maxSwapInterval) = 1;
61
62 mReqWidth = 0;
63 mReqHeight = 0;
64 mReqFormat = 0;
65 mReqUsage = 0;
66 mTimestamp = NATIVE_WINDOW_TIMESTAMP_AUTO;
67 mCrop.clear();
68 mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
69 mTransform = 0;
70 mStickyTransform = 0;
71 mDefaultWidth = 0;
72 mDefaultHeight = 0;
73 mUserWidth = 0;
74 mUserHeight = 0;
75 mTransformHint = 0;
76 mConsumerRunningBehind = false;
77 mConnectedToCpu = false;
78 mProducerControlledByApp = controlledByApp;
79 mSwapIntervalZero = false;
80 }
81
~Surface()82 Surface::~Surface() {
83 if (mConnectedToCpu) {
84 Surface::disconnect(NATIVE_WINDOW_API_CPU);
85 }
86 }
87
getIGraphicBufferProducer() const88 sp<IGraphicBufferProducer> Surface::getIGraphicBufferProducer() const {
89 return mGraphicBufferProducer;
90 }
91
setSidebandStream(const sp<NativeHandle> & stream)92 void Surface::setSidebandStream(const sp<NativeHandle>& stream) {
93 mGraphicBufferProducer->setSidebandStream(stream);
94 }
95
allocateBuffers()96 void Surface::allocateBuffers() {
97 uint32_t reqWidth = mReqWidth ? mReqWidth : mUserWidth;
98 uint32_t reqHeight = mReqHeight ? mReqHeight : mUserHeight;
99 mGraphicBufferProducer->allocateBuffers(mSwapIntervalZero, mReqWidth,
100 mReqHeight, mReqFormat, mReqUsage);
101 }
102
hook_setSwapInterval(ANativeWindow * window,int interval)103 int Surface::hook_setSwapInterval(ANativeWindow* window, int interval) {
104 Surface* c = getSelf(window);
105 return c->setSwapInterval(interval);
106 }
107
hook_dequeueBuffer(ANativeWindow * window,ANativeWindowBuffer ** buffer,int * fenceFd)108 int Surface::hook_dequeueBuffer(ANativeWindow* window,
109 ANativeWindowBuffer** buffer, int* fenceFd) {
110 Surface* c = getSelf(window);
111 return c->dequeueBuffer(buffer, fenceFd);
112 }
113
hook_cancelBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)114 int Surface::hook_cancelBuffer(ANativeWindow* window,
115 ANativeWindowBuffer* buffer, int fenceFd) {
116 Surface* c = getSelf(window);
117 return c->cancelBuffer(buffer, fenceFd);
118 }
119
hook_queueBuffer(ANativeWindow * window,ANativeWindowBuffer * buffer,int fenceFd)120 int Surface::hook_queueBuffer(ANativeWindow* window,
121 ANativeWindowBuffer* buffer, int fenceFd) {
122 Surface* c = getSelf(window);
123 return c->queueBuffer(buffer, fenceFd);
124 }
125
hook_dequeueBuffer_DEPRECATED(ANativeWindow * window,ANativeWindowBuffer ** buffer)126 int Surface::hook_dequeueBuffer_DEPRECATED(ANativeWindow* window,
127 ANativeWindowBuffer** buffer) {
128 Surface* c = getSelf(window);
129 ANativeWindowBuffer* buf;
130 int fenceFd = -1;
131 int result = c->dequeueBuffer(&buf, &fenceFd);
132 sp<Fence> fence(new Fence(fenceFd));
133 int waitResult = fence->waitForever("dequeueBuffer_DEPRECATED");
134 if (waitResult != OK) {
135 ALOGE("dequeueBuffer_DEPRECATED: Fence::wait returned an error: %d",
136 waitResult);
137 c->cancelBuffer(buf, -1);
138 return waitResult;
139 }
140 *buffer = buf;
141 return result;
142 }
143
hook_cancelBuffer_DEPRECATED(ANativeWindow * window,ANativeWindowBuffer * buffer)144 int Surface::hook_cancelBuffer_DEPRECATED(ANativeWindow* window,
145 ANativeWindowBuffer* buffer) {
146 Surface* c = getSelf(window);
147 return c->cancelBuffer(buffer, -1);
148 }
149
hook_lockBuffer_DEPRECATED(ANativeWindow * window,ANativeWindowBuffer * buffer)150 int Surface::hook_lockBuffer_DEPRECATED(ANativeWindow* window,
151 ANativeWindowBuffer* buffer) {
152 Surface* c = getSelf(window);
153 return c->lockBuffer_DEPRECATED(buffer);
154 }
155
hook_queueBuffer_DEPRECATED(ANativeWindow * window,ANativeWindowBuffer * buffer)156 int Surface::hook_queueBuffer_DEPRECATED(ANativeWindow* window,
157 ANativeWindowBuffer* buffer) {
158 Surface* c = getSelf(window);
159 return c->queueBuffer(buffer, -1);
160 }
161
hook_query(const ANativeWindow * window,int what,int * value)162 int Surface::hook_query(const ANativeWindow* window,
163 int what, int* value) {
164 const Surface* c = getSelf(window);
165 return c->query(what, value);
166 }
167
hook_perform(ANativeWindow * window,int operation,...)168 int Surface::hook_perform(ANativeWindow* window, int operation, ...) {
169 va_list args;
170 va_start(args, operation);
171 Surface* c = getSelf(window);
172 return c->perform(operation, args);
173 }
174
setSwapInterval(int interval)175 int Surface::setSwapInterval(int interval) {
176 ATRACE_CALL();
177 // EGL specification states:
178 // interval is silently clamped to minimum and maximum implementation
179 // dependent values before being stored.
180
181 if (interval < minSwapInterval)
182 interval = minSwapInterval;
183
184 if (interval > maxSwapInterval)
185 interval = maxSwapInterval;
186
187 mSwapIntervalZero = (interval == 0);
188
189 return NO_ERROR;
190 }
191
dequeueBuffer(android_native_buffer_t ** buffer,int * fenceFd)192 int Surface::dequeueBuffer(android_native_buffer_t** buffer, int* fenceFd) {
193 ATRACE_CALL();
194 ALOGV("Surface::dequeueBuffer");
195
196 int reqW;
197 int reqH;
198 bool swapIntervalZero;
199 uint32_t reqFormat;
200 uint32_t reqUsage;
201
202 {
203 Mutex::Autolock lock(mMutex);
204
205 reqW = mReqWidth ? mReqWidth : mUserWidth;
206 reqH = mReqHeight ? mReqHeight : mUserHeight;
207
208 swapIntervalZero = mSwapIntervalZero;
209 reqFormat = mReqFormat;
210 reqUsage = mReqUsage;
211 } // Drop the lock so that we can still touch the Surface while blocking in IGBP::dequeueBuffer
212
213 int buf = -1;
214 sp<Fence> fence;
215 status_t result = mGraphicBufferProducer->dequeueBuffer(&buf, &fence, swapIntervalZero,
216 reqW, reqH, reqFormat, reqUsage);
217
218 if (result < 0) {
219 ALOGV("dequeueBuffer: IGraphicBufferProducer::dequeueBuffer(%d, %d, %d, %d, %d)"
220 "failed: %d", swapIntervalZero, reqW, reqH, reqFormat, reqUsage,
221 result);
222 return result;
223 }
224
225 Mutex::Autolock lock(mMutex);
226
227 sp<GraphicBuffer>& gbuf(mSlots[buf].buffer);
228
229 // this should never happen
230 ALOGE_IF(fence == NULL, "Surface::dequeueBuffer: received null Fence! buf=%d", buf);
231
232 if (result & IGraphicBufferProducer::RELEASE_ALL_BUFFERS) {
233 freeAllBuffers();
234 }
235
236 if ((result & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) || gbuf == 0) {
237 result = mGraphicBufferProducer->requestBuffer(buf, &gbuf);
238 if (result != NO_ERROR) {
239 ALOGE("dequeueBuffer: IGraphicBufferProducer::requestBuffer failed: %d", result);
240 mGraphicBufferProducer->cancelBuffer(buf, fence);
241 return result;
242 }
243 }
244
245 if (fence->isValid()) {
246 *fenceFd = fence->dup();
247 if (*fenceFd == -1) {
248 ALOGE("dequeueBuffer: error duping fence: %d", errno);
249 // dup() should never fail; something is badly wrong. Soldier on
250 // and hope for the best; the worst that should happen is some
251 // visible corruption that lasts until the next frame.
252 }
253 } else {
254 *fenceFd = -1;
255 }
256
257 *buffer = gbuf.get();
258 return OK;
259 }
260
cancelBuffer(android_native_buffer_t * buffer,int fenceFd)261 int Surface::cancelBuffer(android_native_buffer_t* buffer,
262 int fenceFd) {
263 ATRACE_CALL();
264 ALOGV("Surface::cancelBuffer");
265 Mutex::Autolock lock(mMutex);
266 int i = getSlotFromBufferLocked(buffer);
267 if (i < 0) {
268 return i;
269 }
270 sp<Fence> fence(fenceFd >= 0 ? new Fence(fenceFd) : Fence::NO_FENCE);
271 mGraphicBufferProducer->cancelBuffer(i, fence);
272 return OK;
273 }
274
getSlotFromBufferLocked(android_native_buffer_t * buffer) const275 int Surface::getSlotFromBufferLocked(
276 android_native_buffer_t* buffer) const {
277 bool dumpedState = false;
278 for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
279 if (mSlots[i].buffer != NULL &&
280 mSlots[i].buffer->handle == buffer->handle) {
281 return i;
282 }
283 }
284 ALOGE("getSlotFromBufferLocked: unknown buffer: %p", buffer->handle);
285 return BAD_VALUE;
286 }
287
lockBuffer_DEPRECATED(android_native_buffer_t * buffer)288 int Surface::lockBuffer_DEPRECATED(android_native_buffer_t* buffer __attribute__((unused))) {
289 ALOGV("Surface::lockBuffer");
290 Mutex::Autolock lock(mMutex);
291 return OK;
292 }
293
queueBuffer(android_native_buffer_t * buffer,int fenceFd)294 int Surface::queueBuffer(android_native_buffer_t* buffer, int fenceFd) {
295 ATRACE_CALL();
296 ALOGV("Surface::queueBuffer");
297 Mutex::Autolock lock(mMutex);
298 int64_t timestamp;
299 bool isAutoTimestamp = false;
300 if (mTimestamp == NATIVE_WINDOW_TIMESTAMP_AUTO) {
301 timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
302 isAutoTimestamp = true;
303 ALOGV("Surface::queueBuffer making up timestamp: %.2f ms",
304 timestamp / 1000000.f);
305 } else {
306 timestamp = mTimestamp;
307 }
308 int i = getSlotFromBufferLocked(buffer);
309 if (i < 0) {
310 return i;
311 }
312
313
314 // Make sure the crop rectangle is entirely inside the buffer.
315 Rect crop;
316 mCrop.intersect(Rect(buffer->width, buffer->height), &crop);
317
318 sp<Fence> fence(fenceFd >= 0 ? new Fence(fenceFd) : Fence::NO_FENCE);
319 IGraphicBufferProducer::QueueBufferOutput output;
320 IGraphicBufferProducer::QueueBufferInput input(timestamp, isAutoTimestamp,
321 crop, mScalingMode, mTransform ^ mStickyTransform, mSwapIntervalZero,
322 fence, mStickyTransform);
323 status_t err = mGraphicBufferProducer->queueBuffer(i, input, &output);
324 if (err != OK) {
325 ALOGE("queueBuffer: error queuing buffer to SurfaceTexture, %d", err);
326 }
327 uint32_t numPendingBuffers = 0;
328 uint32_t hint = 0;
329 output.deflate(&mDefaultWidth, &mDefaultHeight, &hint,
330 &numPendingBuffers);
331
332 // Disable transform hint if sticky transform is set.
333 if (mStickyTransform == 0) {
334 mTransformHint = hint;
335 }
336
337 mConsumerRunningBehind = (numPendingBuffers >= 2);
338
339 return err;
340 }
341
query(int what,int * value) const342 int Surface::query(int what, int* value) const {
343 ATRACE_CALL();
344 ALOGV("Surface::query");
345 { // scope for the lock
346 Mutex::Autolock lock(mMutex);
347 switch (what) {
348 case NATIVE_WINDOW_FORMAT:
349 if (mReqFormat) {
350 *value = mReqFormat;
351 return NO_ERROR;
352 }
353 break;
354 case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER: {
355 sp<ISurfaceComposer> composer(
356 ComposerService::getComposerService());
357 if (composer->authenticateSurfaceTexture(mGraphicBufferProducer)) {
358 *value = 1;
359 } else {
360 *value = 0;
361 }
362 return NO_ERROR;
363 }
364 case NATIVE_WINDOW_CONCRETE_TYPE:
365 *value = NATIVE_WINDOW_SURFACE;
366 return NO_ERROR;
367 case NATIVE_WINDOW_DEFAULT_WIDTH:
368 *value = mUserWidth ? mUserWidth : mDefaultWidth;
369 return NO_ERROR;
370 case NATIVE_WINDOW_DEFAULT_HEIGHT:
371 *value = mUserHeight ? mUserHeight : mDefaultHeight;
372 return NO_ERROR;
373 case NATIVE_WINDOW_TRANSFORM_HINT:
374 *value = mTransformHint;
375 return NO_ERROR;
376 case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND: {
377 status_t err = NO_ERROR;
378 if (!mConsumerRunningBehind) {
379 *value = 0;
380 } else {
381 err = mGraphicBufferProducer->query(what, value);
382 if (err == NO_ERROR) {
383 mConsumerRunningBehind = *value;
384 }
385 }
386 return err;
387 }
388 }
389 }
390 return mGraphicBufferProducer->query(what, value);
391 }
392
perform(int operation,va_list args)393 int Surface::perform(int operation, va_list args)
394 {
395 int res = NO_ERROR;
396 switch (operation) {
397 case NATIVE_WINDOW_CONNECT:
398 // deprecated. must return NO_ERROR.
399 break;
400 case NATIVE_WINDOW_DISCONNECT:
401 // deprecated. must return NO_ERROR.
402 break;
403 case NATIVE_WINDOW_SET_USAGE:
404 res = dispatchSetUsage(args);
405 break;
406 case NATIVE_WINDOW_SET_CROP:
407 res = dispatchSetCrop(args);
408 break;
409 case NATIVE_WINDOW_SET_BUFFER_COUNT:
410 res = dispatchSetBufferCount(args);
411 break;
412 case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
413 res = dispatchSetBuffersGeometry(args);
414 break;
415 case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
416 res = dispatchSetBuffersTransform(args);
417 break;
418 case NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM:
419 res = dispatchSetBuffersStickyTransform(args);
420 break;
421 case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
422 res = dispatchSetBuffersTimestamp(args);
423 break;
424 case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS:
425 res = dispatchSetBuffersDimensions(args);
426 break;
427 case NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS:
428 res = dispatchSetBuffersUserDimensions(args);
429 break;
430 case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
431 res = dispatchSetBuffersFormat(args);
432 break;
433 case NATIVE_WINDOW_LOCK:
434 res = dispatchLock(args);
435 break;
436 case NATIVE_WINDOW_UNLOCK_AND_POST:
437 res = dispatchUnlockAndPost(args);
438 break;
439 case NATIVE_WINDOW_SET_SCALING_MODE:
440 res = dispatchSetScalingMode(args);
441 break;
442 case NATIVE_WINDOW_API_CONNECT:
443 res = dispatchConnect(args);
444 break;
445 case NATIVE_WINDOW_API_DISCONNECT:
446 res = dispatchDisconnect(args);
447 break;
448 case NATIVE_WINDOW_SET_SIDEBAND_STREAM:
449 res = dispatchSetSidebandStream(args);
450 break;
451 default:
452 res = NAME_NOT_FOUND;
453 break;
454 }
455 return res;
456 }
457
dispatchConnect(va_list args)458 int Surface::dispatchConnect(va_list args) {
459 int api = va_arg(args, int);
460 return connect(api);
461 }
462
dispatchDisconnect(va_list args)463 int Surface::dispatchDisconnect(va_list args) {
464 int api = va_arg(args, int);
465 return disconnect(api);
466 }
467
dispatchSetUsage(va_list args)468 int Surface::dispatchSetUsage(va_list args) {
469 int usage = va_arg(args, int);
470 return setUsage(usage);
471 }
472
dispatchSetCrop(va_list args)473 int Surface::dispatchSetCrop(va_list args) {
474 android_native_rect_t const* rect = va_arg(args, android_native_rect_t*);
475 return setCrop(reinterpret_cast<Rect const*>(rect));
476 }
477
dispatchSetBufferCount(va_list args)478 int Surface::dispatchSetBufferCount(va_list args) {
479 size_t bufferCount = va_arg(args, size_t);
480 return setBufferCount(bufferCount);
481 }
482
dispatchSetBuffersGeometry(va_list args)483 int Surface::dispatchSetBuffersGeometry(va_list args) {
484 int w = va_arg(args, int);
485 int h = va_arg(args, int);
486 int f = va_arg(args, int);
487 int err = setBuffersDimensions(w, h);
488 if (err != 0) {
489 return err;
490 }
491 return setBuffersFormat(f);
492 }
493
dispatchSetBuffersDimensions(va_list args)494 int Surface::dispatchSetBuffersDimensions(va_list args) {
495 int w = va_arg(args, int);
496 int h = va_arg(args, int);
497 return setBuffersDimensions(w, h);
498 }
499
dispatchSetBuffersUserDimensions(va_list args)500 int Surface::dispatchSetBuffersUserDimensions(va_list args) {
501 int w = va_arg(args, int);
502 int h = va_arg(args, int);
503 return setBuffersUserDimensions(w, h);
504 }
505
dispatchSetBuffersFormat(va_list args)506 int Surface::dispatchSetBuffersFormat(va_list args) {
507 int f = va_arg(args, int);
508 return setBuffersFormat(f);
509 }
510
dispatchSetScalingMode(va_list args)511 int Surface::dispatchSetScalingMode(va_list args) {
512 int m = va_arg(args, int);
513 return setScalingMode(m);
514 }
515
dispatchSetBuffersTransform(va_list args)516 int Surface::dispatchSetBuffersTransform(va_list args) {
517 int transform = va_arg(args, int);
518 return setBuffersTransform(transform);
519 }
520
dispatchSetBuffersStickyTransform(va_list args)521 int Surface::dispatchSetBuffersStickyTransform(va_list args) {
522 int transform = va_arg(args, int);
523 return setBuffersStickyTransform(transform);
524 }
525
dispatchSetBuffersTimestamp(va_list args)526 int Surface::dispatchSetBuffersTimestamp(va_list args) {
527 int64_t timestamp = va_arg(args, int64_t);
528 return setBuffersTimestamp(timestamp);
529 }
530
dispatchLock(va_list args)531 int Surface::dispatchLock(va_list args) {
532 ANativeWindow_Buffer* outBuffer = va_arg(args, ANativeWindow_Buffer*);
533 ARect* inOutDirtyBounds = va_arg(args, ARect*);
534 return lock(outBuffer, inOutDirtyBounds);
535 }
536
dispatchUnlockAndPost(va_list args)537 int Surface::dispatchUnlockAndPost(va_list args __attribute__((unused))) {
538 return unlockAndPost();
539 }
540
dispatchSetSidebandStream(va_list args)541 int Surface::dispatchSetSidebandStream(va_list args) {
542 native_handle_t* sH = va_arg(args, native_handle_t*);
543 sp<NativeHandle> sidebandHandle = NativeHandle::create(sH, false);
544 setSidebandStream(sidebandHandle);
545 return OK;
546 }
547
connect(int api)548 int Surface::connect(int api) {
549 ATRACE_CALL();
550 ALOGV("Surface::connect");
551 static sp<IProducerListener> listener = new DummyProducerListener();
552 Mutex::Autolock lock(mMutex);
553 IGraphicBufferProducer::QueueBufferOutput output;
554 int err = mGraphicBufferProducer->connect(listener, api, mProducerControlledByApp, &output);
555 if (err == NO_ERROR) {
556 uint32_t numPendingBuffers = 0;
557 uint32_t hint = 0;
558 output.deflate(&mDefaultWidth, &mDefaultHeight, &hint,
559 &numPendingBuffers);
560
561 // Disable transform hint if sticky transform is set.
562 if (mStickyTransform == 0) {
563 mTransformHint = hint;
564 }
565
566 mConsumerRunningBehind = (numPendingBuffers >= 2);
567 }
568 if (!err && api == NATIVE_WINDOW_API_CPU) {
569 mConnectedToCpu = true;
570 }
571 return err;
572 }
573
574
disconnect(int api)575 int Surface::disconnect(int api) {
576 ATRACE_CALL();
577 ALOGV("Surface::disconnect");
578 Mutex::Autolock lock(mMutex);
579 freeAllBuffers();
580 int err = mGraphicBufferProducer->disconnect(api);
581 if (!err) {
582 mReqFormat = 0;
583 mReqWidth = 0;
584 mReqHeight = 0;
585 mReqUsage = 0;
586 mCrop.clear();
587 mScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
588 mTransform = 0;
589 mStickyTransform = 0;
590
591 if (api == NATIVE_WINDOW_API_CPU) {
592 mConnectedToCpu = false;
593 }
594 }
595 return err;
596 }
597
setUsage(uint32_t reqUsage)598 int Surface::setUsage(uint32_t reqUsage)
599 {
600 ALOGV("Surface::setUsage");
601 Mutex::Autolock lock(mMutex);
602 mReqUsage = reqUsage;
603 return OK;
604 }
605
setCrop(Rect const * rect)606 int Surface::setCrop(Rect const* rect)
607 {
608 ATRACE_CALL();
609
610 Rect realRect;
611 if (rect == NULL || rect->isEmpty()) {
612 realRect.clear();
613 } else {
614 realRect = *rect;
615 }
616
617 ALOGV("Surface::setCrop rect=[%d %d %d %d]",
618 realRect.left, realRect.top, realRect.right, realRect.bottom);
619
620 Mutex::Autolock lock(mMutex);
621 mCrop = realRect;
622 return NO_ERROR;
623 }
624
setBufferCount(int bufferCount)625 int Surface::setBufferCount(int bufferCount)
626 {
627 ATRACE_CALL();
628 ALOGV("Surface::setBufferCount");
629 Mutex::Autolock lock(mMutex);
630
631 status_t err = mGraphicBufferProducer->setBufferCount(bufferCount);
632 ALOGE_IF(err, "IGraphicBufferProducer::setBufferCount(%d) returned %s",
633 bufferCount, strerror(-err));
634
635 if (err == NO_ERROR) {
636 freeAllBuffers();
637 }
638
639 return err;
640 }
641
setBuffersDimensions(int w,int h)642 int Surface::setBuffersDimensions(int w, int h)
643 {
644 ATRACE_CALL();
645 ALOGV("Surface::setBuffersDimensions");
646
647 if (w<0 || h<0)
648 return BAD_VALUE;
649
650 if ((w && !h) || (!w && h))
651 return BAD_VALUE;
652
653 Mutex::Autolock lock(mMutex);
654 mReqWidth = w;
655 mReqHeight = h;
656 return NO_ERROR;
657 }
658
setBuffersUserDimensions(int w,int h)659 int Surface::setBuffersUserDimensions(int w, int h)
660 {
661 ATRACE_CALL();
662 ALOGV("Surface::setBuffersUserDimensions");
663
664 if (w<0 || h<0)
665 return BAD_VALUE;
666
667 if ((w && !h) || (!w && h))
668 return BAD_VALUE;
669
670 Mutex::Autolock lock(mMutex);
671 mUserWidth = w;
672 mUserHeight = h;
673 return NO_ERROR;
674 }
675
setBuffersFormat(int format)676 int Surface::setBuffersFormat(int format)
677 {
678 ALOGV("Surface::setBuffersFormat");
679
680 if (format<0)
681 return BAD_VALUE;
682
683 Mutex::Autolock lock(mMutex);
684 mReqFormat = format;
685 return NO_ERROR;
686 }
687
setScalingMode(int mode)688 int Surface::setScalingMode(int mode)
689 {
690 ATRACE_CALL();
691 ALOGV("Surface::setScalingMode(%d)", mode);
692
693 switch (mode) {
694 case NATIVE_WINDOW_SCALING_MODE_FREEZE:
695 case NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW:
696 case NATIVE_WINDOW_SCALING_MODE_SCALE_CROP:
697 break;
698 default:
699 ALOGE("unknown scaling mode: %d", mode);
700 return BAD_VALUE;
701 }
702
703 Mutex::Autolock lock(mMutex);
704 mScalingMode = mode;
705 return NO_ERROR;
706 }
707
setBuffersTransform(int transform)708 int Surface::setBuffersTransform(int transform)
709 {
710 ATRACE_CALL();
711 ALOGV("Surface::setBuffersTransform");
712 Mutex::Autolock lock(mMutex);
713 mTransform = transform;
714 return NO_ERROR;
715 }
716
setBuffersStickyTransform(int transform)717 int Surface::setBuffersStickyTransform(int transform)
718 {
719 ATRACE_CALL();
720 ALOGV("Surface::setBuffersStickyTransform");
721 Mutex::Autolock lock(mMutex);
722 mStickyTransform = transform;
723 return NO_ERROR;
724 }
725
setBuffersTimestamp(int64_t timestamp)726 int Surface::setBuffersTimestamp(int64_t timestamp)
727 {
728 ALOGV("Surface::setBuffersTimestamp");
729 Mutex::Autolock lock(mMutex);
730 mTimestamp = timestamp;
731 return NO_ERROR;
732 }
733
freeAllBuffers()734 void Surface::freeAllBuffers() {
735 for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
736 mSlots[i].buffer = 0;
737 }
738 }
739
740 // ----------------------------------------------------------------------
741 // the lock/unlock APIs must be used from the same thread
742
copyBlt(const sp<GraphicBuffer> & dst,const sp<GraphicBuffer> & src,const Region & reg)743 static status_t copyBlt(
744 const sp<GraphicBuffer>& dst,
745 const sp<GraphicBuffer>& src,
746 const Region& reg)
747 {
748 // src and dst with, height and format must be identical. no verification
749 // is done here.
750 status_t err;
751 uint8_t const * src_bits = NULL;
752 err = src->lock(GRALLOC_USAGE_SW_READ_OFTEN, reg.bounds(), (void**)&src_bits);
753 ALOGE_IF(err, "error locking src buffer %s", strerror(-err));
754
755 uint8_t* dst_bits = NULL;
756 err = dst->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, reg.bounds(), (void**)&dst_bits);
757 ALOGE_IF(err, "error locking dst buffer %s", strerror(-err));
758
759 Region::const_iterator head(reg.begin());
760 Region::const_iterator tail(reg.end());
761 if (head != tail && src_bits && dst_bits) {
762 const size_t bpp = bytesPerPixel(src->format);
763 const size_t dbpr = dst->stride * bpp;
764 const size_t sbpr = src->stride * bpp;
765
766 while (head != tail) {
767 const Rect& r(*head++);
768 ssize_t h = r.height();
769 if (h <= 0) continue;
770 size_t size = r.width() * bpp;
771 uint8_t const * s = src_bits + (r.left + src->stride * r.top) * bpp;
772 uint8_t * d = dst_bits + (r.left + dst->stride * r.top) * bpp;
773 if (dbpr==sbpr && size==sbpr) {
774 size *= h;
775 h = 1;
776 }
777 do {
778 memcpy(d, s, size);
779 d += dbpr;
780 s += sbpr;
781 } while (--h > 0);
782 }
783 }
784
785 if (src_bits)
786 src->unlock();
787
788 if (dst_bits)
789 dst->unlock();
790
791 return err;
792 }
793
794 // ----------------------------------------------------------------------------
795
lock(ANativeWindow_Buffer * outBuffer,ARect * inOutDirtyBounds)796 status_t Surface::lock(
797 ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds)
798 {
799 if (mLockedBuffer != 0) {
800 ALOGE("Surface::lock failed, already locked");
801 return INVALID_OPERATION;
802 }
803
804 if (!mConnectedToCpu) {
805 int err = Surface::connect(NATIVE_WINDOW_API_CPU);
806 if (err) {
807 return err;
808 }
809 // we're intending to do software rendering from this point
810 setUsage(GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
811 }
812
813 ANativeWindowBuffer* out;
814 int fenceFd = -1;
815 status_t err = dequeueBuffer(&out, &fenceFd);
816 ALOGE_IF(err, "dequeueBuffer failed (%s)", strerror(-err));
817 if (err == NO_ERROR) {
818 sp<GraphicBuffer> backBuffer(GraphicBuffer::getSelf(out));
819 const Rect bounds(backBuffer->width, backBuffer->height);
820
821 Region newDirtyRegion;
822 if (inOutDirtyBounds) {
823 newDirtyRegion.set(static_cast<Rect const&>(*inOutDirtyBounds));
824 newDirtyRegion.andSelf(bounds);
825 } else {
826 newDirtyRegion.set(bounds);
827 }
828
829 // figure out if we can copy the frontbuffer back
830 const sp<GraphicBuffer>& frontBuffer(mPostedBuffer);
831 const bool canCopyBack = (frontBuffer != 0 &&
832 backBuffer->width == frontBuffer->width &&
833 backBuffer->height == frontBuffer->height &&
834 backBuffer->format == frontBuffer->format);
835
836 if (canCopyBack) {
837 // copy the area that is invalid and not repainted this round
838 const Region copyback(mDirtyRegion.subtract(newDirtyRegion));
839 if (!copyback.isEmpty())
840 copyBlt(backBuffer, frontBuffer, copyback);
841 } else {
842 // if we can't copy-back anything, modify the user's dirty
843 // region to make sure they redraw the whole buffer
844 newDirtyRegion.set(bounds);
845 mDirtyRegion.clear();
846 Mutex::Autolock lock(mMutex);
847 for (size_t i=0 ; i<NUM_BUFFER_SLOTS ; i++) {
848 mSlots[i].dirtyRegion.clear();
849 }
850 }
851
852
853 { // scope for the lock
854 Mutex::Autolock lock(mMutex);
855 int backBufferSlot(getSlotFromBufferLocked(backBuffer.get()));
856 if (backBufferSlot >= 0) {
857 Region& dirtyRegion(mSlots[backBufferSlot].dirtyRegion);
858 mDirtyRegion.subtract(dirtyRegion);
859 dirtyRegion = newDirtyRegion;
860 }
861 }
862
863 mDirtyRegion.orSelf(newDirtyRegion);
864 if (inOutDirtyBounds) {
865 *inOutDirtyBounds = newDirtyRegion.getBounds();
866 }
867
868 void* vaddr;
869 status_t res = backBuffer->lockAsync(
870 GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
871 newDirtyRegion.bounds(), &vaddr, fenceFd);
872
873 ALOGW_IF(res, "failed locking buffer (handle = %p)",
874 backBuffer->handle);
875
876 if (res != 0) {
877 err = INVALID_OPERATION;
878 } else {
879 mLockedBuffer = backBuffer;
880 outBuffer->width = backBuffer->width;
881 outBuffer->height = backBuffer->height;
882 outBuffer->stride = backBuffer->stride;
883 outBuffer->format = backBuffer->format;
884 outBuffer->bits = vaddr;
885 }
886 }
887 return err;
888 }
889
unlockAndPost()890 status_t Surface::unlockAndPost()
891 {
892 if (mLockedBuffer == 0) {
893 ALOGE("Surface::unlockAndPost failed, no locked buffer");
894 return INVALID_OPERATION;
895 }
896
897 int fd = -1;
898 status_t err = mLockedBuffer->unlockAsync(&fd);
899 ALOGE_IF(err, "failed unlocking buffer (%p)", mLockedBuffer->handle);
900
901 err = queueBuffer(mLockedBuffer.get(), fd);
902 ALOGE_IF(err, "queueBuffer (handle=%p) failed (%s)",
903 mLockedBuffer->handle, strerror(-err));
904
905 mPostedBuffer = mLockedBuffer;
906 mLockedBuffer = 0;
907 return err;
908 }
909
910 }; // namespace android
911