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#include "SurfaceFlinger.h" 21 22#include <gui/BufferItem.h> 23#include <gui/BufferQueue.h> 24#include <gui/IProducerListener.h> 25 26// --------------------------------------------------------------------------- 27namespace android { 28// --------------------------------------------------------------------------- 29 30#define VDS_LOGE(msg, ...) ALOGE("[%s] " msg, \ 31 mDisplayName.string(), ##__VA_ARGS__) 32#define VDS_LOGW_IF(cond, msg, ...) ALOGW_IF(cond, "[%s] " msg, \ 33 mDisplayName.string(), ##__VA_ARGS__) 34#define VDS_LOGV(msg, ...) ALOGV("[%s] " msg, \ 35 mDisplayName.string(), ##__VA_ARGS__) 36 37static const char* dbgCompositionTypeStr(DisplaySurface::CompositionType type) { 38 switch (type) { 39 case DisplaySurface::COMPOSITION_UNKNOWN: return "UNKNOWN"; 40 case DisplaySurface::COMPOSITION_GLES: return "GLES"; 41 case DisplaySurface::COMPOSITION_HWC: return "HWC"; 42 case DisplaySurface::COMPOSITION_MIXED: return "MIXED"; 43 default: return "<INVALID>"; 44 } 45} 46 47VirtualDisplaySurface::VirtualDisplaySurface(HWComposer& hwc, int32_t dispId, 48 const sp<IGraphicBufferProducer>& sink, 49 const sp<IGraphicBufferProducer>& bqProducer, 50 const sp<IGraphicBufferConsumer>& bqConsumer, 51 const String8& name) 52: ConsumerBase(bqConsumer), 53 mHwc(hwc), 54 mDisplayId(dispId), 55 mDisplayName(name), 56 mSource{}, 57 mDefaultOutputFormat(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED), 58 mOutputFormat(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED), 59 mOutputUsage(GRALLOC_USAGE_HW_COMPOSER), 60 mProducerSlotSource(0), 61 mProducerBuffers(), 62 mQueueBufferOutput(), 63 mSinkBufferWidth(0), 64 mSinkBufferHeight(0), 65 mCompositionType(COMPOSITION_UNKNOWN), 66 mFbFence(Fence::NO_FENCE), 67 mOutputFence(Fence::NO_FENCE), 68 mFbProducerSlot(BufferQueue::INVALID_BUFFER_SLOT), 69 mOutputProducerSlot(BufferQueue::INVALID_BUFFER_SLOT), 70 mDbgState(DBG_STATE_IDLE), 71 mDbgLastCompositionType(COMPOSITION_UNKNOWN), 72 mMustRecompose(false), 73 mForceHwcCopy(SurfaceFlinger::useHwcForRgbToYuv) 74{ 75 mSource[SOURCE_SINK] = sink; 76 mSource[SOURCE_SCRATCH] = bqProducer; 77 78 resetPerFrameState(); 79 80 int sinkWidth, sinkHeight; 81 sink->query(NATIVE_WINDOW_WIDTH, &sinkWidth); 82 sink->query(NATIVE_WINDOW_HEIGHT, &sinkHeight); 83 mSinkBufferWidth = sinkWidth; 84 mSinkBufferHeight = sinkHeight; 85 86 // Pick the buffer format to request from the sink when not rendering to it 87 // with GLES. If the consumer needs CPU access, use the default format 88 // set by the consumer. Otherwise allow gralloc to decide the format based 89 // on usage bits. 90 int sinkUsage; 91 sink->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS, &sinkUsage); 92 if (sinkUsage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) { 93 int sinkFormat; 94 sink->query(NATIVE_WINDOW_FORMAT, &sinkFormat); 95 mDefaultOutputFormat = sinkFormat; 96 } else { 97 mDefaultOutputFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 98 } 99 mOutputFormat = mDefaultOutputFormat; 100 101 ConsumerBase::mName = String8::format("VDS: %s", mDisplayName.string()); 102 mConsumer->setConsumerName(ConsumerBase::mName); 103 mConsumer->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER); 104 mConsumer->setDefaultBufferSize(sinkWidth, sinkHeight); 105 sink->setAsyncMode(true); 106 IGraphicBufferProducer::QueueBufferOutput output; 107 mSource[SOURCE_SCRATCH]->connect(NULL, NATIVE_WINDOW_API_EGL, false, &output); 108} 109 110VirtualDisplaySurface::~VirtualDisplaySurface() { 111 mSource[SOURCE_SCRATCH]->disconnect(NATIVE_WINDOW_API_EGL); 112} 113 114status_t VirtualDisplaySurface::beginFrame(bool mustRecompose) { 115 if (mDisplayId < 0) 116 return NO_ERROR; 117 118 mMustRecompose = mustRecompose; 119 120 VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE, 121 "Unexpected beginFrame() in %s state", dbgStateStr()); 122 mDbgState = DBG_STATE_BEGUN; 123 124 return refreshOutputBuffer(); 125} 126 127status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) { 128 if (mDisplayId < 0) 129 return NO_ERROR; 130 131 VDS_LOGW_IF(mDbgState != DBG_STATE_BEGUN, 132 "Unexpected prepareFrame() in %s state", dbgStateStr()); 133 mDbgState = DBG_STATE_PREPARED; 134 135 mCompositionType = compositionType; 136 if (mForceHwcCopy && mCompositionType == COMPOSITION_GLES) { 137 // Some hardware can do RGB->YUV conversion more efficiently in hardware 138 // controlled by HWC than in hardware controlled by the video encoder. 139 // Forcing GLES-composed frames to go through an extra copy by the HWC 140 // allows the format conversion to happen there, rather than passing RGB 141 // directly to the consumer. 142 // 143 // On the other hand, when the consumer prefers RGB or can consume RGB 144 // inexpensively, this forces an unnecessary copy. 145 mCompositionType = COMPOSITION_MIXED; 146 } 147 148 if (mCompositionType != mDbgLastCompositionType) { 149 VDS_LOGV("prepareFrame: composition type changed to %s", 150 dbgCompositionTypeStr(mCompositionType)); 151 mDbgLastCompositionType = mCompositionType; 152 } 153 154 if (mCompositionType != COMPOSITION_GLES && 155 (mOutputFormat != mDefaultOutputFormat || 156 mOutputUsage != GRALLOC_USAGE_HW_COMPOSER)) { 157 // We must have just switched from GLES-only to MIXED or HWC 158 // composition. Stop using the format and usage requested by the GLES 159 // driver; they may be suboptimal when HWC is writing to the output 160 // buffer. For example, if the output is going to a video encoder, and 161 // HWC can write directly to YUV, some hardware can skip a 162 // memory-to-memory RGB-to-YUV conversion step. 163 // 164 // If we just switched *to* GLES-only mode, we'll change the 165 // format/usage and get a new buffer when the GLES driver calls 166 // dequeueBuffer(). 167 mOutputFormat = mDefaultOutputFormat; 168 mOutputUsage = GRALLOC_USAGE_HW_COMPOSER; 169 refreshOutputBuffer(); 170 } 171 172 return NO_ERROR; 173} 174 175#ifndef USE_HWC2 176status_t VirtualDisplaySurface::compositionComplete() { 177 return NO_ERROR; 178} 179#endif 180 181status_t VirtualDisplaySurface::advanceFrame() { 182 if (mDisplayId < 0) 183 return NO_ERROR; 184 185 if (mCompositionType == COMPOSITION_HWC) { 186 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 187 "Unexpected advanceFrame() in %s state on HWC frame", 188 dbgStateStr()); 189 } else { 190 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES_DONE, 191 "Unexpected advanceFrame() in %s state on GLES/MIXED frame", 192 dbgStateStr()); 193 } 194 mDbgState = DBG_STATE_HWC; 195 196 if (mOutputProducerSlot < 0 || 197 (mCompositionType != COMPOSITION_HWC && mFbProducerSlot < 0)) { 198 // Last chance bailout if something bad happened earlier. For example, 199 // in a GLES configuration, if the sink disappears then dequeueBuffer 200 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 201 // will soldier on. So we end up here without a buffer. There should 202 // be lots of scary messages in the log just before this. 203 VDS_LOGE("advanceFrame: no buffer, bailing out"); 204 return NO_MEMORY; 205 } 206 207 sp<GraphicBuffer> fbBuffer = mFbProducerSlot >= 0 ? 208 mProducerBuffers[mFbProducerSlot] : sp<GraphicBuffer>(NULL); 209 sp<GraphicBuffer> outBuffer = mProducerBuffers[mOutputProducerSlot]; 210 VDS_LOGV("advanceFrame: fb=%d(%p) out=%d(%p)", 211 mFbProducerSlot, fbBuffer.get(), 212 mOutputProducerSlot, outBuffer.get()); 213 214 // At this point we know the output buffer acquire fence, 215 // so update HWC state with it. 216 mHwc.setOutputBuffer(mDisplayId, mOutputFence, outBuffer); 217 218 status_t result = NO_ERROR; 219 if (fbBuffer != NULL) { 220#ifdef USE_HWC2 221 uint32_t hwcSlot = 0; 222 sp<GraphicBuffer> hwcBuffer; 223 mHwcBufferCache.getHwcBuffer(mFbProducerSlot, fbBuffer, 224 &hwcSlot, &hwcBuffer); 225 226 // TODO: Correctly propagate the dataspace from GL composition 227 result = mHwc.setClientTarget(mDisplayId, hwcSlot, mFbFence, 228 hwcBuffer, HAL_DATASPACE_UNKNOWN); 229#else 230 result = mHwc.fbPost(mDisplayId, mFbFence, fbBuffer); 231#endif 232 } 233 234 return result; 235} 236 237void VirtualDisplaySurface::onFrameCommitted() { 238 if (mDisplayId < 0) 239 return; 240 241 VDS_LOGW_IF(mDbgState != DBG_STATE_HWC, 242 "Unexpected onFrameCommitted() in %s state", dbgStateStr()); 243 mDbgState = DBG_STATE_IDLE; 244 245#ifdef USE_HWC2 246 sp<Fence> retireFence = mHwc.getPresentFence(mDisplayId); 247#else 248 sp<Fence> fbFence = mHwc.getAndResetReleaseFence(mDisplayId); 249#endif 250 if (mCompositionType == COMPOSITION_MIXED && mFbProducerSlot >= 0) { 251 // release the scratch buffer back to the pool 252 Mutex::Autolock lock(mMutex); 253 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, mFbProducerSlot); 254 VDS_LOGV("onFrameCommitted: release scratch sslot=%d", sslot); 255#ifdef USE_HWC2 256 addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], 257 retireFence); 258#else 259 addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], fbFence); 260#endif 261 releaseBufferLocked(sslot, mProducerBuffers[mFbProducerSlot], 262 EGL_NO_DISPLAY, EGL_NO_SYNC_KHR); 263 } 264 265 if (mOutputProducerSlot >= 0) { 266 int sslot = mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot); 267 QueueBufferOutput qbo; 268#ifndef USE_HWC2 269 sp<Fence> outFence = mHwc.getLastRetireFence(mDisplayId); 270#endif 271 VDS_LOGV("onFrameCommitted: queue sink sslot=%d", sslot); 272 if (mMustRecompose) { 273 status_t result = mSource[SOURCE_SINK]->queueBuffer(sslot, 274 QueueBufferInput( 275 systemTime(), false /* isAutoTimestamp */, 276 HAL_DATASPACE_UNKNOWN, 277 Rect(mSinkBufferWidth, mSinkBufferHeight), 278 NATIVE_WINDOW_SCALING_MODE_FREEZE, 0 /* transform */, 279#ifdef USE_HWC2 280 retireFence), 281#else 282 outFence), 283#endif 284 &qbo); 285 if (result == NO_ERROR) { 286 updateQueueBufferOutput(std::move(qbo)); 287 } 288 } else { 289 // If the surface hadn't actually been updated, then we only went 290 // through the motions of updating the display to keep our state 291 // machine happy. We cancel the buffer to avoid triggering another 292 // re-composition and causing an infinite loop. 293#ifdef USE_HWC2 294 mSource[SOURCE_SINK]->cancelBuffer(sslot, retireFence); 295#else 296 mSource[SOURCE_SINK]->cancelBuffer(sslot, outFence); 297#endif 298 } 299 } 300 301 resetPerFrameState(); 302} 303 304void VirtualDisplaySurface::dumpAsString(String8& /* result */) const { 305} 306 307void VirtualDisplaySurface::resizeBuffers(const uint32_t w, const uint32_t h) { 308 mQueueBufferOutput.width = w; 309 mQueueBufferOutput.height = h; 310 mSinkBufferWidth = w; 311 mSinkBufferHeight = h; 312} 313 314const sp<Fence>& VirtualDisplaySurface::getClientTargetAcquireFence() const { 315 return mFbFence; 316} 317 318status_t VirtualDisplaySurface::requestBuffer(int pslot, 319 sp<GraphicBuffer>* outBuf) { 320 if (mDisplayId < 0) 321 return mSource[SOURCE_SINK]->requestBuffer(pslot, outBuf); 322 323 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 324 "Unexpected requestBuffer pslot=%d in %s state", 325 pslot, dbgStateStr()); 326 327 *outBuf = mProducerBuffers[pslot]; 328 return NO_ERROR; 329} 330 331status_t VirtualDisplaySurface::setMaxDequeuedBufferCount( 332 int maxDequeuedBuffers) { 333 return mSource[SOURCE_SINK]->setMaxDequeuedBufferCount(maxDequeuedBuffers); 334} 335 336status_t VirtualDisplaySurface::setAsyncMode(bool async) { 337 return mSource[SOURCE_SINK]->setAsyncMode(async); 338} 339 340status_t VirtualDisplaySurface::dequeueBuffer(Source source, 341 PixelFormat format, uint32_t usage, int* sslot, sp<Fence>* fence) { 342 LOG_FATAL_IF(mDisplayId < 0, "mDisplayId=%d but should not be < 0.", mDisplayId); 343 344 status_t result = mSource[source]->dequeueBuffer(sslot, fence, 345 mSinkBufferWidth, mSinkBufferHeight, format, usage, nullptr); 346 if (result < 0) 347 return result; 348 int pslot = mapSource2ProducerSlot(source, *sslot); 349 VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d", 350 dbgSourceStr(source), *sslot, pslot, result); 351 uint64_t sourceBit = static_cast<uint64_t>(source) << pslot; 352 353 if ((mProducerSlotSource & (1ULL << pslot)) != sourceBit) { 354 // This slot was previously dequeued from the other source; must 355 // re-request the buffer. 356 result |= BUFFER_NEEDS_REALLOCATION; 357 mProducerSlotSource &= ~(1ULL << pslot); 358 mProducerSlotSource |= sourceBit; 359 } 360 361 if (result & RELEASE_ALL_BUFFERS) { 362 for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) { 363 if ((mProducerSlotSource & (1ULL << i)) == sourceBit) 364 mProducerBuffers[i].clear(); 365 } 366 } 367 if (result & BUFFER_NEEDS_REALLOCATION) { 368 result = mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]); 369 if (result < 0) { 370 mProducerBuffers[pslot].clear(); 371 mSource[source]->cancelBuffer(*sslot, *fence); 372 return result; 373 } 374 VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p fmt=%d usage=%#x", 375 dbgSourceStr(source), pslot, mProducerBuffers[pslot].get(), 376 mProducerBuffers[pslot]->getPixelFormat(), 377 mProducerBuffers[pslot]->getUsage()); 378 } 379 380 return result; 381} 382 383status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence, 384 uint32_t w, uint32_t h, PixelFormat format, uint32_t usage, 385 FrameEventHistoryDelta* outTimestamps) { 386 if (mDisplayId < 0) { 387 return mSource[SOURCE_SINK]->dequeueBuffer( 388 pslot, fence, w, h, format, usage, outTimestamps); 389 } 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 451status_t VirtualDisplaySurface::detachBuffer(int /* slot */) { 452 VDS_LOGE("detachBuffer is not available for VirtualDisplaySurface"); 453 return INVALID_OPERATION; 454} 455 456status_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 462status_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 468status_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 // This moves the frame timestamps and keeps a copy of all other fields. 522 *output = std::move(mQueueBufferOutput); 523 return NO_ERROR; 524} 525 526status_t VirtualDisplaySurface::cancelBuffer(int pslot, 527 const sp<Fence>& fence) { 528 if (mDisplayId < 0) 529 return mSource[SOURCE_SINK]->cancelBuffer(mapProducer2SourceSlot(SOURCE_SINK, pslot), fence); 530 531 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 532 "Unexpected cancelBuffer(pslot=%d) in %s state", pslot, 533 dbgStateStr()); 534 VDS_LOGV("cancelBuffer pslot=%d", pslot); 535 Source source = fbSourceForCompositionType(mCompositionType); 536 return mSource[source]->cancelBuffer( 537 mapProducer2SourceSlot(source, pslot), fence); 538} 539 540int VirtualDisplaySurface::query(int what, int* value) { 541 switch (what) { 542 case NATIVE_WINDOW_WIDTH: 543 *value = mSinkBufferWidth; 544 break; 545 case NATIVE_WINDOW_HEIGHT: 546 *value = mSinkBufferHeight; 547 break; 548 default: 549 return mSource[SOURCE_SINK]->query(what, value); 550 } 551 return NO_ERROR; 552} 553 554status_t VirtualDisplaySurface::connect(const sp<IProducerListener>& listener, 555 int api, bool producerControlledByApp, 556 QueueBufferOutput* output) { 557 QueueBufferOutput qbo; 558 status_t result = mSource[SOURCE_SINK]->connect(listener, api, 559 producerControlledByApp, &qbo); 560 if (result == NO_ERROR) { 561 updateQueueBufferOutput(std::move(qbo)); 562 // This moves the frame timestamps and keeps a copy of all other fields. 563 *output = std::move(mQueueBufferOutput); 564 } 565 return result; 566} 567 568status_t VirtualDisplaySurface::disconnect(int api, DisconnectMode mode) { 569 return mSource[SOURCE_SINK]->disconnect(api, mode); 570} 571 572status_t VirtualDisplaySurface::setSidebandStream(const sp<NativeHandle>& /*stream*/) { 573 return INVALID_OPERATION; 574} 575 576void VirtualDisplaySurface::allocateBuffers(uint32_t /* width */, 577 uint32_t /* height */, PixelFormat /* format */, uint32_t /* usage */) { 578 // TODO: Should we actually allocate buffers for a virtual display? 579} 580 581status_t VirtualDisplaySurface::allowAllocation(bool /* allow */) { 582 return INVALID_OPERATION; 583} 584 585status_t VirtualDisplaySurface::setGenerationNumber(uint32_t /* generation */) { 586 ALOGE("setGenerationNumber not supported on VirtualDisplaySurface"); 587 return INVALID_OPERATION; 588} 589 590String8 VirtualDisplaySurface::getConsumerName() const { 591 return String8("VirtualDisplaySurface"); 592} 593 594status_t VirtualDisplaySurface::setSharedBufferMode(bool /*sharedBufferMode*/) { 595 ALOGE("setSharedBufferMode not supported on VirtualDisplaySurface"); 596 return INVALID_OPERATION; 597} 598 599status_t VirtualDisplaySurface::setAutoRefresh(bool /*autoRefresh*/) { 600 ALOGE("setAutoRefresh not supported on VirtualDisplaySurface"); 601 return INVALID_OPERATION; 602} 603 604status_t VirtualDisplaySurface::setDequeueTimeout(nsecs_t /* timeout */) { 605 ALOGE("setDequeueTimeout not supported on VirtualDisplaySurface"); 606 return INVALID_OPERATION; 607} 608 609status_t VirtualDisplaySurface::getLastQueuedBuffer( 610 sp<GraphicBuffer>* /*outBuffer*/, sp<Fence>* /*outFence*/, 611 float[16] /* outTransformMatrix*/) { 612 ALOGE("getLastQueuedBuffer not supported on VirtualDisplaySurface"); 613 return INVALID_OPERATION; 614} 615 616status_t VirtualDisplaySurface::getUniqueId(uint64_t* /*outId*/) const { 617 ALOGE("getUniqueId not supported on VirtualDisplaySurface"); 618 return INVALID_OPERATION; 619} 620 621void VirtualDisplaySurface::updateQueueBufferOutput( 622 QueueBufferOutput&& qbo) { 623 mQueueBufferOutput = std::move(qbo); 624 mQueueBufferOutput.transformHint = 0; 625} 626 627void VirtualDisplaySurface::resetPerFrameState() { 628 mCompositionType = COMPOSITION_UNKNOWN; 629 mFbFence = Fence::NO_FENCE; 630 mOutputFence = Fence::NO_FENCE; 631 mOutputProducerSlot = -1; 632 mFbProducerSlot = -1; 633} 634 635status_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. 662int 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} 669int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) { 670 return mapSource2ProducerSlot(source, pslot); 671} 672 673VirtualDisplaySurface::Source 674VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) { 675 return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK; 676} 677 678const 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 689const 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