VirtualDisplaySurface.cpp revision 9e56aa0fdb5f7121b9b975c6c16db103ea4d2fe9
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// --------------------------------------------------------------------------- 25namespace android { 26// --------------------------------------------------------------------------- 27 28#if defined(FORCE_HWC_COPY_FOR_VIRTUAL_DISPLAYS) 29static const bool sForceHwcCopy = true; 30#else 31static 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 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{ 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 113VirtualDisplaySurface::~VirtualDisplaySurface() { 114 mSource[SOURCE_SCRATCH]->disconnect(NATIVE_WINDOW_API_EGL); 115} 116 117status_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 130status_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 179status_t VirtualDisplaySurface::compositionComplete() { 180 return NO_ERROR; 181} 182#endif 183 184status_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 235void 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 302void VirtualDisplaySurface::dumpAsString(String8& /* result */) const { 303} 304 305void VirtualDisplaySurface::resizeBuffers(const uint32_t w, const uint32_t h) { 306 uint32_t tmpW, tmpH, transformHint, numPendingBuffers; 307 mQueueBufferOutput.deflate(&tmpW, &tmpH, &transformHint, &numPendingBuffers); 308 mQueueBufferOutput.inflate(w, h, transformHint, numPendingBuffers); 309 310 mSinkBufferWidth = w; 311 mSinkBufferHeight = h; 312} 313 314#ifdef USE_HWC2 315const sp<Fence>& VirtualDisplaySurface::getClientTargetAcquireFence() const { 316 return mFbFence; 317} 318#endif 319 320status_t VirtualDisplaySurface::requestBuffer(int pslot, 321 sp<GraphicBuffer>* outBuf) { 322 if (mDisplayId < 0) 323 return mSource[SOURCE_SINK]->requestBuffer(pslot, outBuf); 324 325 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 326 "Unexpected requestBuffer pslot=%d in %s state", 327 pslot, dbgStateStr()); 328 329 *outBuf = mProducerBuffers[pslot]; 330 return NO_ERROR; 331} 332 333status_t VirtualDisplaySurface::setMaxDequeuedBufferCount( 334 int maxDequeuedBuffers) { 335 return mSource[SOURCE_SINK]->setMaxDequeuedBufferCount(maxDequeuedBuffers); 336} 337 338status_t VirtualDisplaySurface::setAsyncMode(bool async) { 339 return mSource[SOURCE_SINK]->setAsyncMode(async); 340} 341 342status_t VirtualDisplaySurface::dequeueBuffer(Source source, 343 PixelFormat format, uint32_t usage, int* sslot, sp<Fence>* fence) { 344 LOG_FATAL_IF(mDisplayId < 0, "mDisplayId=%d but should not be < 0.", mDisplayId); 345 346 status_t result = mSource[source]->dequeueBuffer(sslot, fence, 347 mSinkBufferWidth, mSinkBufferHeight, format, usage); 348 if (result < 0) 349 return result; 350 int pslot = mapSource2ProducerSlot(source, *sslot); 351 VDS_LOGV("dequeueBuffer(%s): sslot=%d pslot=%d result=%d", 352 dbgSourceStr(source), *sslot, pslot, result); 353 uint64_t sourceBit = static_cast<uint64_t>(source) << pslot; 354 355 if ((mProducerSlotSource & (1ULL << pslot)) != sourceBit) { 356 // This slot was previously dequeued from the other source; must 357 // re-request the buffer. 358 result |= BUFFER_NEEDS_REALLOCATION; 359 mProducerSlotSource &= ~(1ULL << pslot); 360 mProducerSlotSource |= sourceBit; 361 } 362 363 if (result & RELEASE_ALL_BUFFERS) { 364 for (uint32_t i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) { 365 if ((mProducerSlotSource & (1ULL << i)) == sourceBit) 366 mProducerBuffers[i].clear(); 367 } 368 } 369 if (result & BUFFER_NEEDS_REALLOCATION) { 370 result = mSource[source]->requestBuffer(*sslot, &mProducerBuffers[pslot]); 371 if (result < 0) { 372 mProducerBuffers[pslot].clear(); 373 mSource[source]->cancelBuffer(*sslot, *fence); 374 return result; 375 } 376 VDS_LOGV("dequeueBuffer(%s): buffers[%d]=%p fmt=%d usage=%#x", 377 dbgSourceStr(source), pslot, mProducerBuffers[pslot].get(), 378 mProducerBuffers[pslot]->getPixelFormat(), 379 mProducerBuffers[pslot]->getUsage()); 380 } 381 382 return result; 383} 384 385status_t VirtualDisplaySurface::dequeueBuffer(int* pslot, sp<Fence>* fence, 386 uint32_t w, uint32_t h, PixelFormat format, uint32_t usage) { 387 if (mDisplayId < 0) 388 return mSource[SOURCE_SINK]->dequeueBuffer(pslot, fence, w, h, format, usage); 389 390 VDS_LOGW_IF(mDbgState != DBG_STATE_PREPARED, 391 "Unexpected dequeueBuffer() in %s state", dbgStateStr()); 392 mDbgState = DBG_STATE_GLES; 393 394 VDS_LOGV("dequeueBuffer %dx%d fmt=%d usage=%#x", w, h, format, usage); 395 396 status_t result = NO_ERROR; 397 Source source = fbSourceForCompositionType(mCompositionType); 398 399 if (source == SOURCE_SINK) { 400 401 if (mOutputProducerSlot < 0) { 402 // Last chance bailout if something bad happened earlier. For example, 403 // in a GLES configuration, if the sink disappears then dequeueBuffer 404 // will fail, the GLES driver won't queue a buffer, but SurfaceFlinger 405 // will soldier on. So we end up here without a buffer. There should 406 // be lots of scary messages in the log just before this. 407 VDS_LOGE("dequeueBuffer: no buffer, bailing out"); 408 return NO_MEMORY; 409 } 410 411 // We already dequeued the output buffer. If the GLES driver wants 412 // something incompatible, we have to cancel and get a new one. This 413 // will mean that HWC will see a different output buffer between 414 // prepare and set, but since we're in GLES-only mode already it 415 // shouldn't matter. 416 417 usage |= GRALLOC_USAGE_HW_COMPOSER; 418 const sp<GraphicBuffer>& buf = mProducerBuffers[mOutputProducerSlot]; 419 if ((usage & ~buf->getUsage()) != 0 || 420 (format != 0 && format != buf->getPixelFormat()) || 421 (w != 0 && w != mSinkBufferWidth) || 422 (h != 0 && h != mSinkBufferHeight)) { 423 VDS_LOGV("dequeueBuffer: dequeueing new output buffer: " 424 "want %dx%d fmt=%d use=%#x, " 425 "have %dx%d fmt=%d use=%#x", 426 w, h, format, usage, 427 mSinkBufferWidth, mSinkBufferHeight, 428 buf->getPixelFormat(), buf->getUsage()); 429 mOutputFormat = format; 430 mOutputUsage = usage; 431 result = refreshOutputBuffer(); 432 if (result < 0) 433 return result; 434 } 435 } 436 437 if (source == SOURCE_SINK) { 438 *pslot = mOutputProducerSlot; 439 *fence = mOutputFence; 440 } else { 441 int sslot; 442 result = dequeueBuffer(source, format, usage, &sslot, fence); 443 if (result >= 0) { 444 *pslot = mapSource2ProducerSlot(source, sslot); 445 } 446 } 447 return result; 448} 449 450status_t VirtualDisplaySurface::detachBuffer(int /* slot */) { 451 VDS_LOGE("detachBuffer is not available for VirtualDisplaySurface"); 452 return INVALID_OPERATION; 453} 454 455status_t VirtualDisplaySurface::detachNextBuffer( 456 sp<GraphicBuffer>* /* outBuffer */, sp<Fence>* /* outFence */) { 457 VDS_LOGE("detachNextBuffer is not available for VirtualDisplaySurface"); 458 return INVALID_OPERATION; 459} 460 461status_t VirtualDisplaySurface::attachBuffer(int* /* outSlot */, 462 const sp<GraphicBuffer>& /* buffer */) { 463 VDS_LOGE("attachBuffer is not available for VirtualDisplaySurface"); 464 return INVALID_OPERATION; 465} 466 467status_t VirtualDisplaySurface::queueBuffer(int pslot, 468 const QueueBufferInput& input, QueueBufferOutput* output) { 469 if (mDisplayId < 0) 470 return mSource[SOURCE_SINK]->queueBuffer(pslot, input, output); 471 472 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 473 "Unexpected queueBuffer(pslot=%d) in %s state", pslot, 474 dbgStateStr()); 475 mDbgState = DBG_STATE_GLES_DONE; 476 477 VDS_LOGV("queueBuffer pslot=%d", pslot); 478 479 status_t result; 480 if (mCompositionType == COMPOSITION_MIXED) { 481 // Queue the buffer back into the scratch pool 482 QueueBufferOutput scratchQBO; 483 int sslot = mapProducer2SourceSlot(SOURCE_SCRATCH, pslot); 484 result = mSource[SOURCE_SCRATCH]->queueBuffer(sslot, input, &scratchQBO); 485 if (result != NO_ERROR) 486 return result; 487 488 // Now acquire the buffer from the scratch pool -- should be the same 489 // slot and fence as we just queued. 490 Mutex::Autolock lock(mMutex); 491 BufferItem item; 492 result = acquireBufferLocked(&item, 0); 493 if (result != NO_ERROR) 494 return result; 495 VDS_LOGW_IF(item.mSlot != sslot, 496 "queueBuffer: acquired sslot %d from SCRATCH after queueing sslot %d", 497 item.mSlot, sslot); 498 mFbProducerSlot = mapSource2ProducerSlot(SOURCE_SCRATCH, item.mSlot); 499 mFbFence = mSlots[item.mSlot].mFence; 500 501 } else { 502 LOG_FATAL_IF(mCompositionType != COMPOSITION_GLES, 503 "Unexpected queueBuffer in state %s for compositionType %s", 504 dbgStateStr(), dbgCompositionTypeStr(mCompositionType)); 505 506 // Extract the GLES release fence for HWC to acquire 507 int64_t timestamp; 508 bool isAutoTimestamp; 509 android_dataspace dataSpace; 510 Rect crop; 511 int scalingMode; 512 uint32_t transform; 513 input.deflate(×tamp, &isAutoTimestamp, &dataSpace, &crop, 514 &scalingMode, &transform, &mFbFence); 515 516 mFbProducerSlot = pslot; 517 mOutputFence = mFbFence; 518 } 519 520 *output = mQueueBufferOutput; 521 return NO_ERROR; 522} 523 524status_t VirtualDisplaySurface::cancelBuffer(int pslot, 525 const sp<Fence>& fence) { 526 if (mDisplayId < 0) 527 return mSource[SOURCE_SINK]->cancelBuffer(mapProducer2SourceSlot(SOURCE_SINK, pslot), fence); 528 529 VDS_LOGW_IF(mDbgState != DBG_STATE_GLES, 530 "Unexpected cancelBuffer(pslot=%d) in %s state", pslot, 531 dbgStateStr()); 532 VDS_LOGV("cancelBuffer pslot=%d", pslot); 533 Source source = fbSourceForCompositionType(mCompositionType); 534 return mSource[source]->cancelBuffer( 535 mapProducer2SourceSlot(source, pslot), fence); 536} 537 538int VirtualDisplaySurface::query(int what, int* value) { 539 switch (what) { 540 case NATIVE_WINDOW_WIDTH: 541 *value = mSinkBufferWidth; 542 break; 543 case NATIVE_WINDOW_HEIGHT: 544 *value = mSinkBufferHeight; 545 break; 546 default: 547 return mSource[SOURCE_SINK]->query(what, value); 548 } 549 return NO_ERROR; 550} 551 552status_t VirtualDisplaySurface::connect(const sp<IProducerListener>& listener, 553 int api, bool producerControlledByApp, 554 QueueBufferOutput* output) { 555 QueueBufferOutput qbo; 556 status_t result = mSource[SOURCE_SINK]->connect(listener, api, 557 producerControlledByApp, &qbo); 558 if (result == NO_ERROR) { 559 updateQueueBufferOutput(qbo); 560 *output = mQueueBufferOutput; 561 } 562 return result; 563} 564 565status_t VirtualDisplaySurface::disconnect(int api) { 566 return mSource[SOURCE_SINK]->disconnect(api); 567} 568 569status_t VirtualDisplaySurface::setSidebandStream(const sp<NativeHandle>& /*stream*/) { 570 return INVALID_OPERATION; 571} 572 573void VirtualDisplaySurface::allocateBuffers(uint32_t /* width */, 574 uint32_t /* height */, PixelFormat /* format */, uint32_t /* usage */) { 575 // TODO: Should we actually allocate buffers for a virtual display? 576} 577 578status_t VirtualDisplaySurface::allowAllocation(bool /* allow */) { 579 return INVALID_OPERATION; 580} 581 582status_t VirtualDisplaySurface::setGenerationNumber(uint32_t /* generation */) { 583 ALOGE("setGenerationNumber not supported on VirtualDisplaySurface"); 584 return INVALID_OPERATION; 585} 586 587String8 VirtualDisplaySurface::getConsumerName() const { 588 return String8("VirtualDisplaySurface"); 589} 590 591uint64_t VirtualDisplaySurface::getNextFrameNumber() const { 592 return 0; 593} 594 595status_t VirtualDisplaySurface::setSingleBufferMode(bool /*singleBufferMode*/) { 596 ALOGE("setSingleBufferMode not supported on VirtualDisplaySurface"); 597 return INVALID_OPERATION; 598} 599 600status_t VirtualDisplaySurface::setAutoRefresh(bool /*autoRefresh*/) { 601 ALOGE("setAutoRefresh not supported on VirtualDisplaySurface"); 602 return INVALID_OPERATION; 603} 604 605status_t VirtualDisplaySurface::setDequeueTimeout(nsecs_t /* timeout */) { 606 ALOGE("setDequeueTimeout not supported on VirtualDisplaySurface"); 607 return INVALID_OPERATION; 608} 609 610void VirtualDisplaySurface::updateQueueBufferOutput( 611 const QueueBufferOutput& qbo) { 612 uint32_t w, h, transformHint, numPendingBuffers; 613 qbo.deflate(&w, &h, &transformHint, &numPendingBuffers); 614 mQueueBufferOutput.inflate(w, h, 0, numPendingBuffers); 615} 616 617void VirtualDisplaySurface::resetPerFrameState() { 618 mCompositionType = COMPOSITION_UNKNOWN; 619 mFbFence = Fence::NO_FENCE; 620 mOutputFence = Fence::NO_FENCE; 621 mOutputProducerSlot = -1; 622 mFbProducerSlot = -1; 623} 624 625status_t VirtualDisplaySurface::refreshOutputBuffer() { 626 if (mOutputProducerSlot >= 0) { 627 mSource[SOURCE_SINK]->cancelBuffer( 628 mapProducer2SourceSlot(SOURCE_SINK, mOutputProducerSlot), 629 mOutputFence); 630 } 631 632 int sslot; 633 status_t result = dequeueBuffer(SOURCE_SINK, mOutputFormat, mOutputUsage, 634 &sslot, &mOutputFence); 635 if (result < 0) 636 return result; 637 mOutputProducerSlot = mapSource2ProducerSlot(SOURCE_SINK, sslot); 638 639 // On GLES-only frames, we don't have the right output buffer acquire fence 640 // until after GLES calls queueBuffer(). So here we just set the buffer 641 // (for use in HWC prepare) but not the fence; we'll call this again with 642 // the proper fence once we have it. 643 result = mHwc.setOutputBuffer(mDisplayId, Fence::NO_FENCE, 644 mProducerBuffers[mOutputProducerSlot]); 645 646 return result; 647} 648 649// This slot mapping function is its own inverse, so two copies are unnecessary. 650// Both are kept to make the intent clear where the function is called, and for 651// the (unlikely) chance that we switch to a different mapping function. 652int VirtualDisplaySurface::mapSource2ProducerSlot(Source source, int sslot) { 653 if (source == SOURCE_SCRATCH) { 654 return BufferQueue::NUM_BUFFER_SLOTS - sslot - 1; 655 } else { 656 return sslot; 657 } 658} 659int VirtualDisplaySurface::mapProducer2SourceSlot(Source source, int pslot) { 660 return mapSource2ProducerSlot(source, pslot); 661} 662 663VirtualDisplaySurface::Source 664VirtualDisplaySurface::fbSourceForCompositionType(CompositionType type) { 665 return type == COMPOSITION_MIXED ? SOURCE_SCRATCH : SOURCE_SINK; 666} 667 668const char* VirtualDisplaySurface::dbgStateStr() const { 669 switch (mDbgState) { 670 case DBG_STATE_IDLE: return "IDLE"; 671 case DBG_STATE_PREPARED: return "PREPARED"; 672 case DBG_STATE_GLES: return "GLES"; 673 case DBG_STATE_GLES_DONE: return "GLES_DONE"; 674 case DBG_STATE_HWC: return "HWC"; 675 default: return "INVALID"; 676 } 677} 678 679const char* VirtualDisplaySurface::dbgSourceStr(Source s) { 680 switch (s) { 681 case SOURCE_SINK: return "SINK"; 682 case SOURCE_SCRATCH: return "SCRATCH"; 683 default: return "INVALID"; 684 } 685} 686 687// --------------------------------------------------------------------------- 688} // namespace android 689// --------------------------------------------------------------------------- 690