VirtualDisplaySurface.cpp revision 566a3b4a1d1a2a6d38257113700eea92aa44ea2b
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 20#include <inttypes.h> 21 22#include "HWComposer.h" 23#include "SurfaceFlinger.h" 24 25#include <gui/BufferItem.h> 26#include <gui/BufferQueue.h> 27#include <gui/IProducerListener.h> 28#include <system/window.h> 29 30// --------------------------------------------------------------------------- 31namespace android { 32// --------------------------------------------------------------------------- 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 41static 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 51VirtualDisplaySurface::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 mForceHwcCopy(SurfaceFlinger::useHwcForRgbToYuv) 78{ 79 mSource[SOURCE_SINK] = sink; 80 mSource[SOURCE_SCRATCH] = bqProducer; 81 82 resetPerFrameState(); 83 84 int sinkWidth, sinkHeight; 85 sink->query(NATIVE_WINDOW_WIDTH, &sinkWidth); 86 sink->query(NATIVE_WINDOW_HEIGHT, &sinkHeight); 87 mSinkBufferWidth = sinkWidth; 88 mSinkBufferHeight = sinkHeight; 89 90 // Pick the buffer format to request from the sink when not rendering to it 91 // with GLES. If the consumer needs CPU access, use the default format 92 // set by the consumer. Otherwise allow gralloc to decide the format based 93 // on usage bits. 94 int sinkUsage; 95 sink->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS, &sinkUsage); 96 if (sinkUsage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) { 97 int sinkFormat; 98 sink->query(NATIVE_WINDOW_FORMAT, &sinkFormat); 99 mDefaultOutputFormat = sinkFormat; 100 } else { 101 mDefaultOutputFormat = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED; 102 } 103 mOutputFormat = mDefaultOutputFormat; 104 105 ConsumerBase::mName = String8::format("VDS: %s", mDisplayName.string()); 106 mConsumer->setConsumerName(ConsumerBase::mName); 107 mConsumer->setConsumerUsageBits(GRALLOC_USAGE_HW_COMPOSER); 108 mConsumer->setDefaultBufferSize(sinkWidth, sinkHeight); 109 sink->setAsyncMode(true); 110 IGraphicBufferProducer::QueueBufferOutput output; 111 mSource[SOURCE_SCRATCH]->connect(nullptr, NATIVE_WINDOW_API_EGL, false, &output); 112} 113 114VirtualDisplaySurface::~VirtualDisplaySurface() { 115 mSource[SOURCE_SCRATCH]->disconnect(NATIVE_WINDOW_API_EGL); 116} 117 118status_t VirtualDisplaySurface::beginFrame(bool mustRecompose) { 119 if (mDisplayId < 0) 120 return NO_ERROR; 121 122 mMustRecompose = mustRecompose; 123 124 VDS_LOGW_IF(mDbgState != DBG_STATE_IDLE, 125 "Unexpected beginFrame() in %s state", dbgStateStr()); 126 mDbgState = DBG_STATE_BEGUN; 127 128 return refreshOutputBuffer(); 129} 130 131status_t VirtualDisplaySurface::prepareFrame(CompositionType compositionType) { 132 if (mDisplayId < 0) 133 return NO_ERROR; 134 135 VDS_LOGW_IF(mDbgState != DBG_STATE_BEGUN, 136 "Unexpected prepareFrame() in %s state", dbgStateStr()); 137 mDbgState = DBG_STATE_PREPARED; 138 139 mCompositionType = compositionType; 140 if (mForceHwcCopy && mCompositionType == COMPOSITION_GLES) { 141 // Some hardware can do RGB->YUV conversion more efficiently in hardware 142 // controlled by HWC than in hardware controlled by the video encoder. 143 // Forcing GLES-composed frames to go through an extra copy by the HWC 144 // allows the format conversion to happen there, rather than passing RGB 145 // directly to the consumer. 146 // 147 // On the other hand, when the consumer prefers RGB or can consume RGB 148 // inexpensively, this forces an unnecessary copy. 149 mCompositionType = COMPOSITION_MIXED; 150 } 151 152 if (mCompositionType != mDbgLastCompositionType) { 153 VDS_LOGV("prepareFrame: composition type changed to %s", 154 dbgCompositionTypeStr(mCompositionType)); 155 mDbgLastCompositionType = mCompositionType; 156 } 157 158 if (mCompositionType != COMPOSITION_GLES && 159 (mOutputFormat != mDefaultOutputFormat || 160 mOutputUsage != GRALLOC_USAGE_HW_COMPOSER)) { 161 // We must have just switched from GLES-only to MIXED or HWC 162 // composition. Stop using the format and usage requested by the GLES 163 // driver; they may be suboptimal when HWC is writing to the output 164 // buffer. For example, if the output is going to a video encoder, and 165 // HWC can write directly to YUV, some hardware can skip a 166 // memory-to-memory RGB-to-YUV conversion step. 167 // 168 // If we just switched *to* GLES-only mode, we'll change the 169 // format/usage and get a new buffer when the GLES driver calls 170 // dequeueBuffer(). 171 mOutputFormat = mDefaultOutputFormat; 172 mOutputUsage = GRALLOC_USAGE_HW_COMPOSER; 173 refreshOutputBuffer(); 174 } 175 176 return NO_ERROR; 177} 178 179status_t VirtualDisplaySurface::advanceFrame() { 180 if (mDisplayId < 0) 181 return NO_ERROR; 182 183 if (mCompositionType == COMPOSITION_HWC) { 184 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 185 "Unexpected advanceFrame() in %s state on HWC frame", 186 dbgStateStr()); 187 } else { 188 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES_DONE, 189 "Unexpected advanceFrame() in %s state on GLES/MIXED frame", 190 dbgStateStr()); 191 } 192 mDbgState = DBG_STATE_HWC; 193 194 if (mOutputProducerSlot < 0 || 195 (mCompositionType != COMPOSITION_HWC && mFbProducerSlot < 0)) { 196 // Last chance bailout if something bad happened earlier. For example, 197 // in a GLES configuration, if the sink disappears then dequeueBuffer 198 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 199 // will soldier on. So we end up here without a buffer. There should 200 // be lots of scary messages in the log just before this. 201 VDS_LOGE("advanceFrame: no buffer, bailing out"); 202 return NO_MEMORY; 203 } 204 205 sp<GraphicBuffer> fbBuffer = mFbProducerSlot >= 0 ? 206 mProducerBuffers[mFbProducerSlot] : sp<GraphicBuffer>(nullptr); 207 sp<GraphicBuffer> outBuffer = mProducerBuffers[mOutputProducerSlot]; 208 VDS_LOGV("advanceFrame: fb=%d(%p) out=%d(%p)", 209 mFbProducerSlot, fbBuffer.get(), 210 mOutputProducerSlot, outBuffer.get()); 211 212 // At this point we know the output buffer acquire fence, 213 // so update HWC state with it. 214 mHwc.setOutputBuffer(mDisplayId, mOutputFence, outBuffer); 215 216 status_t result = NO_ERROR; 217 if (fbBuffer != nullptr) { 218 uint32_t hwcSlot = 0; 219 sp<GraphicBuffer> hwcBuffer; 220 mHwcBufferCache.getHwcBuffer(mFbProducerSlot, fbBuffer, 221 &hwcSlot, &hwcBuffer); 222 223 // TODO: Correctly propagate the dataspace from GL composition 224 result = mHwc.setClientTarget(mDisplayId, hwcSlot, mFbFence, 225 hwcBuffer, HAL_DATASPACE_UNKNOWN); 226 } 227 228 return result; 229} 230 231void VirtualDisplaySurface::onFrameCommitted() { 232 if (mDisplayId < 0) 233 return; 234 235 VDS_LOGW_IF(mDbgState != DBG_STATE_HWC, 236 "Unexpected onFrameCommitted() in %s state", dbgStateStr()); 237 mDbgState = DBG_STATE_IDLE; 238 239 sp<Fence> retireFence = mHwc.getPresentFence(mDisplayId); 240 if (mCompositionType == COMPOSITION_MIXED && mFbProducerSlot >= 0) { 241 // release the scratch buffer back to the pool 242 Mutex::Autolock lock(mMutex); 243 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, mFbProducerSlot); 244 VDS_LOGV("onFrameCommitted: release scratch sslot=%d", sslot); 245 addReleaseFenceLocked(sslot, mProducerBuffers[mFbProducerSlot], 246 retireFence); 247 releaseBufferLocked(sslot, mProducerBuffers[mFbProducerSlot]); 248 } 249 250 if (mOutputProducerSlot >= 0) { 251 int sslot = mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot); 252 QueueBufferOutput qbo; 253 VDS_LOGV("onFrameCommitted: queue sink sslot=%d", sslot); 254 if (mMustRecompose) { 255 status_t result = mSource[SOURCE_SINK]->queueBuffer(sslot, 256 QueueBufferInput( 257 systemTime(), false /* isAutoTimestamp */, 258 HAL_DATASPACE_UNKNOWN, 259 Rect(mSinkBufferWidth, mSinkBufferHeight), 260 NATIVE_WINDOW_SCALING_MODE_FREEZE, 0 /* transform */, 261 retireFence), 262 &qbo); 263 if (result == NO_ERROR) { 264 updateQueueBufferOutput(std::move(qbo)); 265 } 266 } else { 267 // If the surface hadn't actually been updated, then we only went 268 // through the motions of updating the display to keep our state 269 // machine happy. We cancel the buffer to avoid triggering another 270 // re-composition and causing an infinite loop. 271 mSource[SOURCE_SINK]->cancelBuffer(sslot, retireFence); 272 } 273 } 274 275 resetPerFrameState(); 276} 277 278void VirtualDisplaySurface::dumpAsString(String8& /* result */) const { 279} 280 281void VirtualDisplaySurface::resizeBuffers(const uint32_t w, const uint32_t h) { 282 mQueueBufferOutput.width = w; 283 mQueueBufferOutput.height = h; 284 mSinkBufferWidth = w; 285 mSinkBufferHeight = h; 286} 287 288const sp<Fence>& VirtualDisplaySurface::getClientTargetAcquireFence() const { 289 return mFbFence; 290} 291 292status_t VirtualDisplaySurface::requestBuffer(int pslot, 293 sp<GraphicBuffer>* outBuf) { 294 if (mDisplayId < 0) 295 return mSource[SOURCE_SINK]->requestBuffer(pslot, outBuf); 296 297 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 298 "Unexpected requestBuffer pslot=%d in %s state", 299 pslot, dbgStateStr()); 300 301 *outBuf = mProducerBuffers[pslot]; 302 return NO_ERROR; 303} 304 305status_t VirtualDisplaySurface::setMaxDequeuedBufferCount( 306 int maxDequeuedBuffers) { 307 return mSource[SOURCE_SINK]->setMaxDequeuedBufferCount(maxDequeuedBuffers); 308} 309 310status_t VirtualDisplaySurface::setAsyncMode(bool async) { 311 return mSource[SOURCE_SINK]->setAsyncMode(async); 312} 313 314status_t VirtualDisplaySurface::dequeueBuffer(Source source, 315 PixelFormat format, uint64_t usage, int* sslot, sp<Fence>* fence) { 316 LOG_FATAL_IF(mDisplayId < 0, "mDisplayId=%d but should not be < 0.", mDisplayId); 317 318 status_t result = 319 mSource[source]->dequeueBuffer(sslot, fence, mSinkBufferWidth, mSinkBufferHeight, 320 format, usage, nullptr, nullptr); 321 if (result < 0) 322 return result; 323 int pslot = mapSource2ProducerSlot(source, *sslot); 324 VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d", 325 dbgSourceStr(source), *sslot, pslot, result); 326 uint64_t sourceBit = static_cast<uint64_t>(source) << pslot; 327 328 if ((mProducerSlotSource & (1ULL << pslot)) != sourceBit) { 329 // This slot was previously dequeued from the other source; must 330 // re-request the buffer. 331 result |= BUFFER_NEEDS_REALLOCATION; 332 mProducerSlotSource &= ~(1ULL << pslot); 333 mProducerSlotSource |= sourceBit; 334 } 335 336 if (result & RELEASE_ALL_BUFFERS) { 337 for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) { 338 if ((mProducerSlotSource & (1ULL << i)) == sourceBit) 339 mProducerBuffers[i].clear(); 340 } 341 } 342 if (result & BUFFER_NEEDS_REALLOCATION) { 343 result = mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]); 344 if (result < 0) { 345 mProducerBuffers[pslot].clear(); 346 mSource[source]->cancelBuffer(*sslot, *fence); 347 return result; 348 } 349 VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p fmt=%d usage=%#" PRIx64, 350 dbgSourceStr(source), pslot, mProducerBuffers[pslot].get(), 351 mProducerBuffers[pslot]->getPixelFormat(), 352 mProducerBuffers[pslot]->getUsage()); 353 } 354 355 return result; 356} 357 358status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence, uint32_t w, uint32_t h, 359 PixelFormat format, uint64_t usage, 360 uint64_t* outBufferAge, 361 FrameEventHistoryDelta* outTimestamps) { 362 if (mDisplayId < 0) { 363 return mSource[SOURCE_SINK]->dequeueBuffer(pslot, fence, w, h, format, usage, outBufferAge, 364 outTimestamps); 365 } 366 367 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 368 "Unexpected dequeueBuffer() in %s state", dbgStateStr()); 369 mDbgState = DBG_STATE_GLES; 370 371 VDS_LOGV("dequeueBuffer %dx%d fmt=%d usage=%#" PRIx64, w, h, format, usage); 372 373 status_t result = NO_ERROR; 374 Source source = fbSourceForCompositionType(mCompositionType); 375 376 if (source == SOURCE_SINK) { 377 378 if (mOutputProducerSlot < 0) { 379 // Last chance bailout if something bad happened earlier. For example, 380 // in a GLES configuration, if the sink disappears then dequeueBuffer 381 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 382 // will soldier on. So we end up here without a buffer. There should 383 // be lots of scary messages in the log just before this. 384 VDS_LOGE("dequeueBuffer: no buffer, bailing out"); 385 return NO_MEMORY; 386 } 387 388 // We already dequeued the output buffer. If the GLES driver wants 389 // something incompatible, we have to cancel and get a new one. This 390 // will mean that HWC will see a different output buffer between 391 // prepare and set, but since we're in GLES-only mode already it 392 // shouldn't matter. 393 394 usage |= GRALLOC_USAGE_HW_COMPOSER; 395 const sp<GraphicBuffer>& buf = mProducerBuffers[mOutputProducerSlot]; 396 if ((usage & ~buf->getUsage()) != 0 || 397 (format != 0 && format != buf->getPixelFormat()) || 398 (w != 0 && w != mSinkBufferWidth) || 399 (h != 0 && h != mSinkBufferHeight)) { 400 VDS_LOGV("dequeueBuffer: dequeueing new output buffer: " 401 "want %dx%d fmt=%d use=%#" PRIx64 ", " 402 "have %dx%d fmt=%d use=%#" PRIx64, 403 w, h, format, usage, 404 mSinkBufferWidth, mSinkBufferHeight, 405 buf->getPixelFormat(), buf->getUsage()); 406 mOutputFormat = format; 407 mOutputUsage = usage; 408 result = refreshOutputBuffer(); 409 if (result < 0) 410 return result; 411 } 412 } 413 414 if (source == SOURCE_SINK) { 415 *pslot = mOutputProducerSlot; 416 *fence = mOutputFence; 417 } else { 418 int sslot; 419 result = dequeueBuffer(source, format, usage, &sslot, fence); 420 if (result >= 0) { 421 *pslot = mapSource2ProducerSlot(source, sslot); 422 } 423 } 424 if (outBufferAge) { 425 *outBufferAge = 0; 426 } 427 return result; 428} 429 430status_t VirtualDisplaySurface::detachBuffer(int /* slot */) { 431 VDS_LOGE("detachBuffer is not available for VirtualDisplaySurface"); 432 return INVALID_OPERATION; 433} 434 435status_t VirtualDisplaySurface::detachNextBuffer( 436 sp<GraphicBuffer>* /* outBuffer */, sp<Fence>* /* outFence */) { 437 VDS_LOGE("detachNextBuffer is not available for VirtualDisplaySurface"); 438 return INVALID_OPERATION; 439} 440 441status_t VirtualDisplaySurface::attachBuffer(int* /* outSlot */, 442 const sp<GraphicBuffer>& /* buffer */) { 443 VDS_LOGE("attachBuffer is not available for VirtualDisplaySurface"); 444 return INVALID_OPERATION; 445} 446 447status_t VirtualDisplaySurface::queueBuffer(int pslot, 448 const QueueBufferInput& input, QueueBufferOutput* output) { 449 if (mDisplayId < 0) 450 return mSource[SOURCE_SINK]->queueBuffer(pslot, input, output); 451 452 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 453 "Unexpected queueBuffer(pslot=%d) in %s state", pslot, 454 dbgStateStr()); 455 mDbgState = DBG_STATE_GLES_DONE; 456 457 VDS_LOGV("queueBuffer pslot=%d", pslot); 458 459 status_t result; 460 if (mCompositionType == COMPOSITION_MIXED) { 461 // Queue the buffer back into the scratch pool 462 QueueBufferOutput scratchQBO; 463 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, pslot); 464 result = mSource[SOURCE_SCRATCH]->queueBuffer(sslot, input, &scratchQBO); 465 if (result != NO_ERROR) 466 return result; 467 468 // Now acquire the buffer from the scratch pool -- should be the same 469 // slot and fence as we just queued. 470 Mutex::Autolock lock(mMutex); 471 BufferItem item; 472 result = acquireBufferLocked(&item, 0); 473 if (result != NO_ERROR) 474 return result; 475 VDS_LOGW_IF(item.mSlot != sslot, 476 "queueBuffer: acquired sslot %d from SCRATCH after queueing sslot %d", 477 item.mSlot, sslot); 478 mFbProducerSlot = mapSource2ProducerSlot(SOURCE_SCRATCH, item.mSlot); 479 mFbFence = mSlots[item.mSlot].mFence; 480 481 } else { 482 LOG_FATAL_IF(mCompositionType != COMPOSITION_GLES, 483 "Unexpected queueBuffer in state %s for compositionType %s", 484 dbgStateStr(), dbgCompositionTypeStr(mCompositionType)); 485 486 // Extract the GLES release fence for HWC to acquire 487 int64_t timestamp; 488 bool isAutoTimestamp; 489 android_dataspace dataSpace; 490 Rect crop; 491 int scalingMode; 492 uint32_t transform; 493 input.deflate(×tamp, &isAutoTimestamp, &dataSpace, &crop, 494 &scalingMode, &transform, &mFbFence); 495 496 mFbProducerSlot = pslot; 497 mOutputFence = mFbFence; 498 } 499 500 // This moves the frame timestamps and keeps a copy of all other fields. 501 *output = std::move(mQueueBufferOutput); 502 return NO_ERROR; 503} 504 505status_t VirtualDisplaySurface::cancelBuffer(int pslot, 506 const sp<Fence>& fence) { 507 if (mDisplayId < 0) 508 return mSource[SOURCE_SINK]->cancelBuffer(mapProducer2SourceSlot(SOURCE_SINK, pslot), fence); 509 510 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 511 "Unexpected cancelBuffer(pslot=%d) in %s state", pslot, 512 dbgStateStr()); 513 VDS_LOGV("cancelBuffer pslot=%d", pslot); 514 Source source = fbSourceForCompositionType(mCompositionType); 515 return mSource[source]->cancelBuffer( 516 mapProducer2SourceSlot(source, pslot), fence); 517} 518 519int VirtualDisplaySurface::query(int what, int* value) { 520 switch (what) { 521 case NATIVE_WINDOW_WIDTH: 522 *value = mSinkBufferWidth; 523 break; 524 case NATIVE_WINDOW_HEIGHT: 525 *value = mSinkBufferHeight; 526 break; 527 default: 528 return mSource[SOURCE_SINK]->query(what, value); 529 } 530 return NO_ERROR; 531} 532 533status_t VirtualDisplaySurface::connect(const sp<IProducerListener>& listener, 534 int api, bool producerControlledByApp, 535 QueueBufferOutput* output) { 536 QueueBufferOutput qbo; 537 status_t result = mSource[SOURCE_SINK]->connect(listener, api, 538 producerControlledByApp, &qbo); 539 if (result == NO_ERROR) { 540 updateQueueBufferOutput(std::move(qbo)); 541 // This moves the frame timestamps and keeps a copy of all other fields. 542 *output = std::move(mQueueBufferOutput); 543 } 544 return result; 545} 546 547status_t VirtualDisplaySurface::disconnect(int api, DisconnectMode mode) { 548 return mSource[SOURCE_SINK]->disconnect(api, mode); 549} 550 551status_t VirtualDisplaySurface::setSidebandStream(const sp<NativeHandle>& /*stream*/) { 552 return INVALID_OPERATION; 553} 554 555void VirtualDisplaySurface::allocateBuffers(uint32_t /* width */, 556 uint32_t /* height */, PixelFormat /* format */, uint64_t /* usage */) { 557 // TODO: Should we actually allocate buffers for a virtual display? 558} 559 560status_t VirtualDisplaySurface::allowAllocation(bool /* allow */) { 561 return INVALID_OPERATION; 562} 563 564status_t VirtualDisplaySurface::setGenerationNumber(uint32_t /* generation */) { 565 ALOGE("setGenerationNumber not supported on VirtualDisplaySurface"); 566 return INVALID_OPERATION; 567} 568 569String8 VirtualDisplaySurface::getConsumerName() const { 570 return String8("VirtualDisplaySurface"); 571} 572 573status_t VirtualDisplaySurface::setSharedBufferMode(bool /*sharedBufferMode*/) { 574 ALOGE("setSharedBufferMode not supported on VirtualDisplaySurface"); 575 return INVALID_OPERATION; 576} 577 578status_t VirtualDisplaySurface::setAutoRefresh(bool /*autoRefresh*/) { 579 ALOGE("setAutoRefresh not supported on VirtualDisplaySurface"); 580 return INVALID_OPERATION; 581} 582 583status_t VirtualDisplaySurface::setDequeueTimeout(nsecs_t /* timeout */) { 584 ALOGE("setDequeueTimeout not supported on VirtualDisplaySurface"); 585 return INVALID_OPERATION; 586} 587 588status_t VirtualDisplaySurface::getLastQueuedBuffer( 589 sp<GraphicBuffer>* /*outBuffer*/, sp<Fence>* /*outFence*/, 590 float[16] /* outTransformMatrix*/) { 591 ALOGE("getLastQueuedBuffer not supported on VirtualDisplaySurface"); 592 return INVALID_OPERATION; 593} 594 595status_t VirtualDisplaySurface::getUniqueId(uint64_t* /*outId*/) const { 596 ALOGE("getUniqueId not supported on VirtualDisplaySurface"); 597 return INVALID_OPERATION; 598} 599 600status_t VirtualDisplaySurface::getConsumerUsage(uint64_t* outUsage) const { 601 return mSource[SOURCE_SINK]->getConsumerUsage(outUsage); 602} 603 604void VirtualDisplaySurface::updateQueueBufferOutput( 605 QueueBufferOutput&& qbo) { 606 mQueueBufferOutput = std::move(qbo); 607 mQueueBufferOutput.transformHint = 0; 608} 609 610void VirtualDisplaySurface::resetPerFrameState() { 611 mCompositionType = COMPOSITION_UNKNOWN; 612 mFbFence = Fence::NO_FENCE; 613 mOutputFence = Fence::NO_FENCE; 614 mOutputProducerSlot = -1; 615 mFbProducerSlot = -1; 616} 617 618status_t VirtualDisplaySurface::refreshOutputBuffer() { 619 if (mOutputProducerSlot >= 0) { 620 mSource[SOURCE_SINK]->cancelBuffer( 621 mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot), 622 mOutputFence); 623 } 624 625 int sslot; 626 status_t result = dequeueBuffer(SOURCE_SINK, mOutputFormat, mOutputUsage, 627 &sslot, &mOutputFence); 628 if (result < 0) 629 return result; 630 mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot); 631 632 // On GLES-only frames, we don't have the right output buffer acquire fence 633 // until after GLES calls queueBuffer(). So here we just set the buffer 634 // (for use in HWC prepare) but not the fence; we'll call this again with 635 // the proper fence once we have it. 636 result = mHwc.setOutputBuffer(mDisplayId, Fence::NO_FENCE, 637 mProducerBuffers[mOutputProducerSlot]); 638 639 return result; 640} 641 642// This slot mapping function is its own inverse, so two copies are unnecessary. 643// Both are kept to make the intent clear where the function is called, and for 644// the (unlikely) chance that we switch to a different mapping function. 645int VirtualDisplaySurface::mapSource2ProducerSlot(Source source, int sslot) { 646 if (source == SOURCE_SCRATCH) { 647 return BufferQueue::NUM_BUFFER_SLOTS - sslot - 1; 648 } else { 649 return sslot; 650 } 651} 652int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) { 653 return mapSource2ProducerSlot(source, pslot); 654} 655 656VirtualDisplaySurface::Source 657VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) { 658 return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK; 659} 660 661const char* VirtualDisplaySurface::dbgStateStr() const { 662 switch (mDbgState) { 663 case DBG_STATE_IDLE: return "IDLE"; 664 case DBG_STATE_PREPARED: return "PREPARED"; 665 case DBG_STATE_GLES: return "GLES"; 666 case DBG_STATE_GLES_DONE: return "GLES_DONE"; 667 case DBG_STATE_HWC: return "HWC"; 668 default: return "INVALID"; 669 } 670} 671 672const char* VirtualDisplaySurface::dbgSourceStr(Source s) { 673 switch (s) { 674 case SOURCE_SINK: return "SINK"; 675 case SOURCE_SCRATCH: return "SCRATCH"; 676 default: return "INVALID"; 677 } 678} 679 680// --------------------------------------------------------------------------- 681} // namespace android 682// --------------------------------------------------------------------------- 683