1 /* 2 * Copyright 2013 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_NDEBUG 0 18 #include "VirtualDisplaySurface.h" 19 #include "HWComposer.h" 20 21 #include <gui/BufferItem.h> 22 #include <gui/IProducerListener.h> 23 24 // --------------------------------------------------------------------------- 25 namespace android { 26 // --------------------------------------------------------------------------- 27 28 #if defined(FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS) 29 static const bool sForceHwcCopy = true; 30 #else 31 static const bool sForceHwcCopy = false; 32 #endif 33 34 #define VDS_LOGE(msg, ...) ALOGE("[%s] " msg, \ 35 mDisplayName.string(), ##__VA_ARGS__) 36 #define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] " msg, \ 37 mDisplayName.string(), ##__VA_ARGS__) 38 #define VDS_LOGV(msg, ...) ALOGV("[%s] " msg, \ 39 mDisplayName.string(), ##__VA_ARGS__) 40 41 static const char* dbgCompositionTypeStr(DisplaySurface::CompositionType type) { 42 switch (type) { 43 case DisplaySurface::COMPOSITION_UNKNOWN: return "UNKNOWN"; 44 case DisplaySurface::COMPOSITION_GLES: return "GLES"; 45 case DisplaySurface::COMPOSITION_HWC: return "HWC"; 46 case DisplaySurface::COMPOSITION_MIXED: return "MIXED"; 47 default: return "<INVALID>"; 48 } 49 } 50 51 VirtualDisplaySurface::VirtualDisplaySurface(HWComposer& hwc, int32_t dispId, 52 const sp<IGraphicBufferProducer>& sink, 53 const sp<IGraphicBufferProducer>& bqProducer, 54 const sp<IGraphicBufferConsumer>& bqConsumer, 55 const String8& name) 56 : ConsumerBase(bqConsumer), 57 mHwc(hwc), 58 mDisplayId(dispId), 59 mDisplayName(name), 60 mSource{}, 61 mDefaultOutputFormat(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED), 62 mOutputFormat(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED), 63 mOutputUsage(GRALLOC_USAGE_HW_COMPOSER), 64 mProducerSlotSource(0), 65 mProducerBuffers(), 66 mQueueBufferOutput(), 67 mSinkBufferWidth(0), 68 mSinkBufferHeight(0), 69 mCompositionType(COMPOSITION_UNKNOWN), 70 mFbFence(Fence::NO_FENCE), 71 mOutputFence(Fence::NO_FENCE), 72 mFbProducerSlot(BufferQueue::INVALID_BUFFER_SLOT), 73 mOutputProducerSlot(BufferQueue::INVALID_BUFFER_SLOT), 74 mDbgState(DBG_STATE_IDLE), 75 mDbgLastCompositionType(COMPOSITION_UNKNOWN), 76 mMustRecompose(false) 77 { 78 mSource[SOURCE_SINK] = sink; 79 mSource[SOURCE_SCRATCH] = bqProducer; 80 81 resetPerFrameState(); 82 83 int sinkWidth, sinkHeight; 84 sink->query(NATIVE_WINDOW_WIDTH, &sinkWidth); 85 sink->query(NATIVE_WINDOW_HEIGHT, &sinkHeight); 86 mSinkBufferWidth = sinkWidth; 87 mSinkBufferHeight = sinkHeight; 88 89 // Pick the buffer format to request from the sink when not rendering to it 90 // with GLES. If the consumer needs CPU access, use the default format 91 // set by the consumer. Otherwise allow gralloc to decide the format based 92 // on usage bits. 93 int sinkUsage; 94 sink->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS, &sinkUsage); 95 if (sinkUsage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) { 96 int sinkFormat; 97 sink->query(NATIVE_WINDOW_FORMAT, &sinkFormat); 98 mDefaultOutputFormat = sinkFormat; 99 } else { 100 mDefaultOutputFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 101 } 102 mOutputFormat = mDefaultOutputFormat; 103 104 ConsumerBase::mName = String8::format("VDS: %s", mDisplayName.string()); 105 mConsumer->setConsumerName(ConsumerBase::mName); 106 mConsumer->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER); 107 mConsumer->setDefaultBufferSize(sinkWidth, sinkHeight); 108 sink->setAsyncMode(true); 109 IGraphicBufferProducer::QueueBufferOutput output; 110 mSource[SOURCE_SCRATCH]->connect(NULL, NATIVE_WINDOW_API_EGL, false, &output); 111 } 112 113 VirtualDisplaySurface::~VirtualDisplaySurface() { 114 mSource[SOURCE_SCRATCH]->disconnect(NATIVE_WINDOW_API_EGL); 115 } 116 117 status_t VirtualDisplaySurface::beginFrame(bool mustRecompose) { 118 if (mDisplayId < 0) 119 return NO_ERROR; 120 121 mMustRecompose = mustRecompose; 122 123 VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE, 124 "Unexpected beginFrame() in %s state", dbgStateStr()); 125 mDbgState = DBG_STATE_BEGUN; 126 127 return refreshOutputBuffer(); 128 } 129 130 status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) { 131 if (mDisplayId < 0) 132 return NO_ERROR; 133 134 VDS_LOGW_IF(mDbgState != DBG_STATE_BEGUN, 135 "Unexpected prepareFrame() in %s state", dbgStateStr()); 136 mDbgState = DBG_STATE_PREPARED; 137 138 mCompositionType = compositionType; 139 if (sForceHwcCopy && mCompositionType == COMPOSITION_GLES) { 140 // Some hardware can do RGB->YUV conversion more efficiently in hardware 141 // controlled by HWC than in hardware controlled by the video encoder. 142 // Forcing GLES-composed frames to go through an extra copy by the HWC 143 // allows the format conversion to happen there, rather than passing RGB 144 // directly to the consumer. 145 // 146 // On the other hand, when the consumer prefers RGB or can consume RGB 147 // inexpensively, this forces an unnecessary copy. 148 mCompositionType = COMPOSITION_MIXED; 149 } 150 151 if (mCompositionType != mDbgLastCompositionType) { 152 VDS_LOGV("prepareFrame: composition type changed to %s", 153 dbgCompositionTypeStr(mCompositionType)); 154 mDbgLastCompositionType = mCompositionType; 155 } 156 157 if (mCompositionType != COMPOSITION_GLES && 158 (mOutputFormat != mDefaultOutputFormat || 159 mOutputUsage != GRALLOC_USAGE_HW_COMPOSER)) { 160 // We must have just switched from GLES-only to MIXED or HWC 161 // composition. Stop using the format and usage requested by the GLES 162 // driver; they may be suboptimal when HWC is writing to the output 163 // buffer. For example, if the output is going to a video encoder, and 164 // HWC can write directly to YUV, some hardware can skip a 165 // memory-to-memory RGB-to-YUV conversion step. 166 // 167 // If we just switched *to* GLES-only mode, we'll change the 168 // format/usage and get a new buffer when the GLES driver calls 169 // dequeueBuffer(). 170 mOutputFormat = mDefaultOutputFormat; 171 mOutputUsage = GRALLOC_USAGE_HW_COMPOSER; 172 refreshOutputBuffer(); 173 } 174 175 return NO_ERROR; 176 } 177 178 #ifndef USE_HWC2 179 status_t VirtualDisplaySurface::compositionComplete() { 180 return NO_ERROR; 181 } 182 #endif 183 184 status_t VirtualDisplaySurface::advanceFrame() { 185 if (mDisplayId < 0) 186 return NO_ERROR; 187 188 if (mCompositionType == COMPOSITION_HWC) { 189 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 190 "Unexpected advanceFrame() in %s state on HWC frame", 191 dbgStateStr()); 192 } else { 193 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES_DONE, 194 "Unexpected advanceFrame() in %s state on GLES/MIXED frame", 195 dbgStateStr()); 196 } 197 mDbgState = DBG_STATE_HWC; 198 199 if (mOutputProducerSlot < 0 || 200 (mCompositionType != COMPOSITION_HWC && mFbProducerSlot < 0)) { 201 // Last chance bailout if something bad happened earlier. For example, 202 // in a GLES configuration, if the sink disappears then dequeueBuffer 203 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 204 // will soldier on. So we end up here without a buffer. There should 205 // be lots of scary messages in the log just before this. 206 VDS_LOGE("advanceFrame: no buffer, bailing out"); 207 return NO_MEMORY; 208 } 209 210 sp<GraphicBuffer> fbBuffer = mFbProducerSlot >= 0 ? 211 mProducerBuffers[mFbProducerSlot] : sp<GraphicBuffer>(NULL); 212 sp<GraphicBuffer> outBuffer = mProducerBuffers[mOutputProducerSlot]; 213 VDS_LOGV("advanceFrame: fb=%d(%p) out=%d(%p)", 214 mFbProducerSlot, fbBuffer.get(), 215 mOutputProducerSlot, outBuffer.get()); 216 217 // At this point we know the output buffer acquire fence, 218 // so update HWC state with it. 219 mHwc.setOutputBuffer(mDisplayId, mOutputFence, outBuffer); 220 221 status_t result = NO_ERROR; 222 if (fbBuffer != NULL) { 223 #ifdef USE_HWC2 224 // TODO: Correctly propagate the dataspace from GL composition 225 result = mHwc.setClientTarget(mDisplayId, mFbFence, fbBuffer, 226 HAL_DATASPACE_UNKNOWN); 227 #else 228 result = mHwc.fbPost(mDisplayId, mFbFence, fbBuffer); 229 #endif 230 } 231 232 return result; 233 } 234 235 void VirtualDisplaySurface::onFrameCommitted() { 236 if (mDisplayId < 0) 237 return; 238 239 VDS_LOGW_IF(mDbgState != DBG_STATE_HWC, 240 "Unexpected onFrameCommitted() in %s state", dbgStateStr()); 241 mDbgState = DBG_STATE_IDLE; 242 243 #ifdef USE_HWC2 244 sp<Fence> retireFence = mHwc.getRetireFence(mDisplayId); 245 #else 246 sp<Fence> fbFence = mHwc.getAndResetReleaseFence(mDisplayId); 247 #endif 248 if (mCompositionType == COMPOSITION_MIXED && mFbProducerSlot >= 0) { 249 // release the scratch buffer back to the pool 250 Mutex::Autolock lock(mMutex); 251 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, mFbProducerSlot); 252 VDS_LOGV("onFrameCommitted: release scratch sslot=%d", sslot); 253 #ifdef USE_HWC2 254 addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], 255 retireFence); 256 #else 257 addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], fbFence); 258 #endif 259 releaseBufferLocked(sslot, mProducerBuffers[mFbProducerSlot], 260 EGL_NO_DISPLAY, EGL_NO_SYNC_KHR); 261 } 262 263 if (mOutputProducerSlot >= 0) { 264 int sslot = mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot); 265 QueueBufferOutput qbo; 266 #ifndef USE_HWC2 267 sp<Fence> outFence = mHwc.getLastRetireFence(mDisplayId); 268 #endif 269 VDS_LOGV("onFrameCommitted: queue sink sslot=%d", sslot); 270 if (mMustRecompose) { 271 status_t result = mSource[SOURCE_SINK]->queueBuffer(sslot, 272 QueueBufferInput( 273 systemTime(), false /* isAutoTimestamp */, 274 HAL_DATASPACE_UNKNOWN, 275 Rect(mSinkBufferWidth, mSinkBufferHeight), 276 NATIVE_WINDOW_SCALING_MODE_FREEZE, 0 /* transform */, 277 #ifdef USE_HWC2 278 retireFence), 279 #else 280 outFence), 281 #endif 282 &qbo); 283 if (result == NO_ERROR) { 284 updateQueueBufferOutput(qbo); 285 } 286 } else { 287 // If the surface hadn't actually been updated, then we only went 288 // through the motions of updating the display to keep our state 289 // machine happy. We cancel the buffer to avoid triggering another 290 // re-composition and causing an infinite loop. 291 #ifdef USE_HWC2 292 mSource[SOURCE_SINK]->cancelBuffer(sslot, retireFence); 293 #else 294 mSource[SOURCE_SINK]->cancelBuffer(sslot, outFence); 295 #endif 296 } 297 } 298 299 resetPerFrameState(); 300 } 301 302 void VirtualDisplaySurface::dumpAsString(String8& /* result */) const { 303 } 304 305 void VirtualDisplaySurface::resizeBuffers(const uint32_t w, const uint32_t h) { 306 uint32_t tmpW, tmpH, transformHint, numPendingBuffers; 307 uint64_t nextFrameNumber; 308 mQueueBufferOutput.deflate(&tmpW, &tmpH, &transformHint, &numPendingBuffers, 309 &nextFrameNumber); 310 mQueueBufferOutput.inflate(w, h, transformHint, numPendingBuffers, 311 nextFrameNumber); 312 313 mSinkBufferWidth = w; 314 mSinkBufferHeight = h; 315 } 316 317 const sp<Fence>& VirtualDisplaySurface::getClientTargetAcquireFence() const { 318 return mFbFence; 319 } 320 321 status_t VirtualDisplaySurface::requestBuffer(int pslot, 322 sp<GraphicBuffer>* outBuf) { 323 if (mDisplayId < 0) 324 return mSource[SOURCE_SINK]->requestBuffer(pslot, outBuf); 325 326 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 327 "Unexpected requestBuffer pslot=%d in %s state", 328 pslot, dbgStateStr()); 329 330 *outBuf = mProducerBuffers[pslot]; 331 return NO_ERROR; 332 } 333 334 status_t VirtualDisplaySurface::setMaxDequeuedBufferCount( 335 int maxDequeuedBuffers) { 336 return mSource[SOURCE_SINK]->setMaxDequeuedBufferCount(maxDequeuedBuffers); 337 } 338 339 status_t VirtualDisplaySurface::setAsyncMode(bool async) { 340 return mSource[SOURCE_SINK]->setAsyncMode(async); 341 } 342 343 status_t VirtualDisplaySurface::dequeueBuffer(Source source, 344 PixelFormat format, uint32_t usage, int* sslot, sp<Fence>* fence) { 345 LOG_FATAL_IF(mDisplayId < 0, "mDisplayId=%d but should not be < 0.", mDisplayId); 346 347 status_t result = mSource[source]->dequeueBuffer(sslot, fence, 348 mSinkBufferWidth, mSinkBufferHeight, format, usage); 349 if (result < 0) 350 return result; 351 int pslot = mapSource2ProducerSlot(source, *sslot); 352 VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d", 353 dbgSourceStr(source), *sslot, pslot, result); 354 uint64_t sourceBit = static_cast<uint64_t>(source) << pslot; 355 356 if ((mProducerSlotSource & (1ULL << pslot)) != sourceBit) { 357 // This slot was previously dequeued from the other source; must 358 // re-request the buffer. 359 result |= BUFFER_NEEDS_REALLOCATION; 360 mProducerSlotSource &= ~(1ULL << pslot); 361 mProducerSlotSource |= sourceBit; 362 } 363 364 if (result & RELEASE_ALL_BUFFERS) { 365 for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) { 366 if ((mProducerSlotSource & (1ULL << i)) == sourceBit) 367 mProducerBuffers[i].clear(); 368 } 369 } 370 if (result & BUFFER_NEEDS_REALLOCATION) { 371 result = mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]); 372 if (result < 0) { 373 mProducerBuffers[pslot].clear(); 374 mSource[source]->cancelBuffer(*sslot, *fence); 375 return result; 376 } 377 VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p fmt=%d usage=%#x", 378 dbgSourceStr(source), pslot, mProducerBuffers[pslot].get(), 379 mProducerBuffers[pslot]->getPixelFormat(), 380 mProducerBuffers[pslot]->getUsage()); 381 } 382 383 return result; 384 } 385 386 status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence, 387 uint32_t w, uint32_t h, PixelFormat format, uint32_t usage) { 388 if (mDisplayId < 0) 389 return mSource[SOURCE_SINK]->dequeueBuffer(pslot, fence, w, h, format, usage); 390 391 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 392 "Unexpected dequeueBuffer() in %s state", dbgStateStr()); 393 mDbgState = DBG_STATE_GLES; 394 395 VDS_LOGV("dequeueBuffer %dx%d fmt=%d usage=%#x", w, h, format, usage); 396 397 status_t result = NO_ERROR; 398 Source source = fbSourceForCompositionType(mCompositionType); 399 400 if (source == SOURCE_SINK) { 401 402 if (mOutputProducerSlot < 0) { 403 // Last chance bailout if something bad happened earlier. For example, 404 // in a GLES configuration, if the sink disappears then dequeueBuffer 405 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 406 // will soldier on. So we end up here without a buffer. There should 407 // be lots of scary messages in the log just before this. 408 VDS_LOGE("dequeueBuffer: no buffer, bailing out"); 409 return NO_MEMORY; 410 } 411 412 // We already dequeued the output buffer. If the GLES driver wants 413 // something incompatible, we have to cancel and get a new one. This 414 // will mean that HWC will see a different output buffer between 415 // prepare and set, but since we're in GLES-only mode already it 416 // shouldn't matter. 417 418 usage |= GRALLOC_USAGE_HW_COMPOSER; 419 const sp<GraphicBuffer>& buf = mProducerBuffers[mOutputProducerSlot]; 420 if ((usage & ~buf->getUsage()) != 0 || 421 (format != 0 && format != buf->getPixelFormat()) || 422 (w != 0 && w != mSinkBufferWidth) || 423 (h != 0 && h != mSinkBufferHeight)) { 424 VDS_LOGV("dequeueBuffer: dequeueing new output buffer: " 425 "want %dx%d fmt=%d use=%#x, " 426 "have %dx%d fmt=%d use=%#x", 427 w, h, format, usage, 428 mSinkBufferWidth, mSinkBufferHeight, 429 buf->getPixelFormat(), buf->getUsage()); 430 mOutputFormat = format; 431 mOutputUsage = usage; 432 result = refreshOutputBuffer(); 433 if (result < 0) 434 return result; 435 } 436 } 437 438 if (source == SOURCE_SINK) { 439 *pslot = mOutputProducerSlot; 440 *fence = mOutputFence; 441 } else { 442 int sslot; 443 result = dequeueBuffer(source, format, usage, &sslot, fence); 444 if (result >= 0) { 445 *pslot = mapSource2ProducerSlot(source, sslot); 446 } 447 } 448 return result; 449 } 450 451 status_t VirtualDisplaySurface::detachBuffer(int /* slot */) { 452 VDS_LOGE("detachBuffer is not available for VirtualDisplaySurface"); 453 return INVALID_OPERATION; 454 } 455 456 status_t VirtualDisplaySurface::detachNextBuffer( 457 sp<GraphicBuffer>* /* outBuffer */, sp<Fence>* /* outFence */) { 458 VDS_LOGE("detachNextBuffer is not available for VirtualDisplaySurface"); 459 return INVALID_OPERATION; 460 } 461 462 status_t VirtualDisplaySurface::attachBuffer(int* /* outSlot */, 463 const sp<GraphicBuffer>& /* buffer */) { 464 VDS_LOGE("attachBuffer is not available for VirtualDisplaySurface"); 465 return INVALID_OPERATION; 466 } 467 468 status_t VirtualDisplaySurface::queueBuffer(int pslot, 469 const QueueBufferInput& input, QueueBufferOutput* output) { 470 if (mDisplayId < 0) 471 return mSource[SOURCE_SINK]->queueBuffer(pslot, input, output); 472 473 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 474 "Unexpected queueBuffer(pslot=%d) in %s state", pslot, 475 dbgStateStr()); 476 mDbgState = DBG_STATE_GLES_DONE; 477 478 VDS_LOGV("queueBuffer pslot=%d", pslot); 479 480 status_t result; 481 if (mCompositionType == COMPOSITION_MIXED) { 482 // Queue the buffer back into the scratch pool 483 QueueBufferOutput scratchQBO; 484 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, pslot); 485 result = mSource[SOURCE_SCRATCH]->queueBuffer(sslot, input, &scratchQBO); 486 if (result != NO_ERROR) 487 return result; 488 489 // Now acquire the buffer from the scratch pool -- should be the same 490 // slot and fence as we just queued. 491 Mutex::Autolock lock(mMutex); 492 BufferItem item; 493 result = acquireBufferLocked(&item, 0); 494 if (result != NO_ERROR) 495 return result; 496 VDS_LOGW_IF(item.mSlot != sslot, 497 "queueBuffer: acquired sslot %d from SCRATCH after queueing sslot %d", 498 item.mSlot, sslot); 499 mFbProducerSlot = mapSource2ProducerSlot(SOURCE_SCRATCH, item.mSlot); 500 mFbFence = mSlots[item.mSlot].mFence; 501 502 } else { 503 LOG_FATAL_IF(mCompositionType != COMPOSITION_GLES, 504 "Unexpected queueBuffer in state %s for compositionType %s", 505 dbgStateStr(), dbgCompositionTypeStr(mCompositionType)); 506 507 // Extract the GLES release fence for HWC to acquire 508 int64_t timestamp; 509 bool isAutoTimestamp; 510 android_dataspace dataSpace; 511 Rect crop; 512 int scalingMode; 513 uint32_t transform; 514 input.deflate(×tamp, &isAutoTimestamp, &dataSpace, &crop, 515 &scalingMode, &transform, &mFbFence); 516 517 mFbProducerSlot = pslot; 518 mOutputFence = mFbFence; 519 } 520 521 *output = mQueueBufferOutput; 522 return NO_ERROR; 523 } 524 525 status_t VirtualDisplaySurface::cancelBuffer(int pslot, 526 const sp<Fence>& fence) { 527 if (mDisplayId < 0) 528 return mSource[SOURCE_SINK]->cancelBuffer(mapProducer2SourceSlot(SOURCE_SINK, pslot), fence); 529 530 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 531 "Unexpected cancelBuffer(pslot=%d) in %s state", pslot, 532 dbgStateStr()); 533 VDS_LOGV("cancelBuffer pslot=%d", pslot); 534 Source source = fbSourceForCompositionType(mCompositionType); 535 return mSource[source]->cancelBuffer( 536 mapProducer2SourceSlot(source, pslot), fence); 537 } 538 539 int VirtualDisplaySurface::query(int what, int* value) { 540 switch (what) { 541 case NATIVE_WINDOW_WIDTH: 542 *value = mSinkBufferWidth; 543 break; 544 case NATIVE_WINDOW_HEIGHT: 545 *value = mSinkBufferHeight; 546 break; 547 default: 548 return mSource[SOURCE_SINK]->query(what, value); 549 } 550 return NO_ERROR; 551 } 552 553 status_t VirtualDisplaySurface::connect(const sp<IProducerListener>& listener, 554 int api, bool producerControlledByApp, 555 QueueBufferOutput* output) { 556 QueueBufferOutput qbo; 557 status_t result = mSource[SOURCE_SINK]->connect(listener, api, 558 producerControlledByApp, &qbo); 559 if (result == NO_ERROR) { 560 updateQueueBufferOutput(qbo); 561 *output = mQueueBufferOutput; 562 } 563 return result; 564 } 565 566 status_t VirtualDisplaySurface::disconnect(int api, DisconnectMode mode) { 567 return mSource[SOURCE_SINK]->disconnect(api, mode); 568 } 569 570 status_t VirtualDisplaySurface::setSidebandStream(const sp<NativeHandle>& /*stream*/) { 571 return INVALID_OPERATION; 572 } 573 574 void VirtualDisplaySurface::allocateBuffers(uint32_t /* width */, 575 uint32_t /* height */, PixelFormat /* format */, uint32_t /* usage */) { 576 // TODO: Should we actually allocate buffers for a virtual display? 577 } 578 579 status_t VirtualDisplaySurface::allowAllocation(bool /* allow */) { 580 return INVALID_OPERATION; 581 } 582 583 status_t VirtualDisplaySurface::setGenerationNumber(uint32_t /* generation */) { 584 ALOGE("setGenerationNumber not supported on VirtualDisplaySurface"); 585 return INVALID_OPERATION; 586 } 587 588 String8 VirtualDisplaySurface::getConsumerName() const { 589 return String8("VirtualDisplaySurface"); 590 } 591 592 status_t VirtualDisplaySurface::setSharedBufferMode(bool /*sharedBufferMode*/) { 593 ALOGE("setSharedBufferMode not supported on VirtualDisplaySurface"); 594 return INVALID_OPERATION; 595 } 596 597 status_t VirtualDisplaySurface::setAutoRefresh(bool /*autoRefresh*/) { 598 ALOGE("setAutoRefresh not supported on VirtualDisplaySurface"); 599 return INVALID_OPERATION; 600 } 601 602 status_t VirtualDisplaySurface::setDequeueTimeout(nsecs_t /* timeout */) { 603 ALOGE("setDequeueTimeout not supported on VirtualDisplaySurface"); 604 return INVALID_OPERATION; 605 } 606 607 status_t VirtualDisplaySurface::getLastQueuedBuffer( 608 sp<GraphicBuffer>* /*outBuffer*/, sp<Fence>* /*outFence*/, 609 float[16] /* outTransformMatrix*/) { 610 ALOGE("getLastQueuedBuffer not supported on VirtualDisplaySurface"); 611 return INVALID_OPERATION; 612 } 613 614 status_t VirtualDisplaySurface::getUniqueId(uint64_t* /*outId*/) const { 615 ALOGE("getUniqueId not supported on VirtualDisplaySurface"); 616 return INVALID_OPERATION; 617 } 618 619 void VirtualDisplaySurface::updateQueueBufferOutput( 620 const QueueBufferOutput& qbo) { 621 uint32_t w, h, transformHint, numPendingBuffers; 622 uint64_t nextFrameNumber; 623 qbo.deflate(&w, &h, &transformHint, &numPendingBuffers, &nextFrameNumber); 624 mQueueBufferOutput.inflate(w, h, 0, numPendingBuffers, nextFrameNumber); 625 } 626 627 void VirtualDisplaySurface::resetPerFrameState() { 628 mCompositionType = COMPOSITION_UNKNOWN; 629 mFbFence = Fence::NO_FENCE; 630 mOutputFence = Fence::NO_FENCE; 631 mOutputProducerSlot = -1; 632 mFbProducerSlot = -1; 633 } 634 635 status_t VirtualDisplaySurface::refreshOutputBuffer() { 636 if (mOutputProducerSlot >= 0) { 637 mSource[SOURCE_SINK]->cancelBuffer( 638 mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot), 639 mOutputFence); 640 } 641 642 int sslot; 643 status_t result = dequeueBuffer(SOURCE_SINK, mOutputFormat, mOutputUsage, 644 &sslot, &mOutputFence); 645 if (result < 0) 646 return result; 647 mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot); 648 649 // On GLES-only frames, we don't have the right output buffer acquire fence 650 // until after GLES calls queueBuffer(). So here we just set the buffer 651 // (for use in HWC prepare) but not the fence; we'll call this again with 652 // the proper fence once we have it. 653 result = mHwc.setOutputBuffer(mDisplayId, Fence::NO_FENCE, 654 mProducerBuffers[mOutputProducerSlot]); 655 656 return result; 657 } 658 659 // This slot mapping function is its own inverse, so two copies are unnecessary. 660 // Both are kept to make the intent clear where the function is called, and for 661 // the (unlikely) chance that we switch to a different mapping function. 662 int VirtualDisplaySurface::mapSource2ProducerSlot(Source source, int sslot) { 663 if (source == SOURCE_SCRATCH) { 664 return BufferQueue::NUM_BUFFER_SLOTS - sslot - 1; 665 } else { 666 return sslot; 667 } 668 } 669 int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) { 670 return mapSource2ProducerSlot(source, pslot); 671 } 672 673 VirtualDisplaySurface::Source 674 VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) { 675 return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK; 676 } 677 678 const char* VirtualDisplaySurface::dbgStateStr() const { 679 switch (mDbgState) { 680 case DBG_STATE_IDLE: return "IDLE"; 681 case DBG_STATE_PREPARED: return "PREPARED"; 682 case DBG_STATE_GLES: return "GLES"; 683 case DBG_STATE_GLES_DONE: return "GLES_DONE"; 684 case DBG_STATE_HWC: return "HWC"; 685 default: return "INVALID"; 686 } 687 } 688 689 const char* VirtualDisplaySurface::dbgSourceStr(Source s) { 690 switch (s) { 691 case SOURCE_SINK: return "SINK"; 692 case SOURCE_SCRATCH: return "SCRATCH"; 693 default: return "INVALID"; 694 } 695 } 696 697 // --------------------------------------------------------------------------- 698 } // namespace android 699 // --------------------------------------------------------------------------- 700