HWComposer.cpp revision a099a24c93bfa599fc5c36a647e946c26f68514f
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17// #define LOG_NDEBUG 0 18 19#undef LOG_TAG 20#define LOG_TAG "HWComposer" 21#define ATRACE_TAG ATRACE_TAG_GRAPHICS 22 23#include <inttypes.h> 24#include <math.h> 25#include <stdint.h> 26#include <stdio.h> 27#include <stdlib.h> 28#include <string.h> 29#include <sys/types.h> 30 31#include <utils/Errors.h> 32#include <utils/misc.h> 33#include <utils/NativeHandle.h> 34#include <utils/String8.h> 35#include <utils/Thread.h> 36#include <utils/Trace.h> 37#include <utils/Vector.h> 38 39#include <ui/GraphicBuffer.h> 40 41#include <hardware/hardware.h> 42#include <hardware/hwcomposer.h> 43 44#include <android/configuration.h> 45 46#include <cutils/properties.h> 47#include <log/log.h> 48 49#include "HWComposer.h" 50#include "HWC2.h" 51#include "ComposerHal.h" 52 53#include "../Layer.h" // needed only for debugging 54#include "../SurfaceFlinger.h" 55 56namespace android { 57 58#define MIN_HWC_HEADER_VERSION HWC_HEADER_VERSION 59 60// --------------------------------------------------------------------------- 61 62HWComposer::HWComposer(const std::string& serviceName) 63 : mHwcDevice(), 64 mDisplayData(2), 65 mFreeDisplaySlots(), 66 mHwcDisplaySlots(), 67 mCBContext(), 68 mEventHandler(nullptr), 69 mVSyncCounts(), 70 mRemainingHwcVirtualDisplays(0) 71{ 72 for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) { 73 mLastHwVSync[i] = 0; 74 mVSyncCounts[i] = 0; 75 } 76 77 loadHwcModule(serviceName); 78} 79 80HWComposer::~HWComposer() {} 81 82void HWComposer::setEventHandler(EventHandler* handler) 83{ 84 if (handler == nullptr) { 85 ALOGE("setEventHandler: Rejected attempt to clear handler"); 86 return; 87 } 88 89 bool wasNull = (mEventHandler == nullptr); 90 mEventHandler = handler; 91 92 if (wasNull) { 93 auto hotplugHook = std::bind(&HWComposer::hotplug, this, 94 std::placeholders::_1, std::placeholders::_2); 95 mHwcDevice->registerHotplugCallback(hotplugHook); 96 auto invalidateHook = std::bind(&HWComposer::invalidate, this, 97 std::placeholders::_1); 98 mHwcDevice->registerRefreshCallback(invalidateHook); 99 auto vsyncHook = std::bind(&HWComposer::vsync, this, 100 std::placeholders::_1, std::placeholders::_2); 101 mHwcDevice->registerVsyncCallback(vsyncHook); 102 } 103} 104 105// Load and prepare the hardware composer module. Sets mHwc. 106void HWComposer::loadHwcModule(const std::string& serviceName) 107{ 108 ALOGV("loadHwcModule"); 109 mHwcDevice = std::make_unique<HWC2::Device>(serviceName); 110 111 mRemainingHwcVirtualDisplays = mHwcDevice->getMaxVirtualDisplayCount(); 112} 113 114bool HWComposer::hasCapability(HWC2::Capability capability) const 115{ 116 return mHwcDevice->getCapabilities().count(capability) > 0; 117} 118 119bool HWComposer::isValidDisplay(int32_t displayId) const { 120 return static_cast<size_t>(displayId) < mDisplayData.size() && 121 mDisplayData[displayId].hwcDisplay; 122} 123 124void HWComposer::validateChange(HWC2::Composition from, HWC2::Composition to) { 125 bool valid = true; 126 switch (from) { 127 case HWC2::Composition::Client: 128 valid = false; 129 break; 130 case HWC2::Composition::Device: 131 case HWC2::Composition::SolidColor: 132 valid = (to == HWC2::Composition::Client); 133 break; 134 case HWC2::Composition::Cursor: 135 case HWC2::Composition::Sideband: 136 valid = (to == HWC2::Composition::Client || 137 to == HWC2::Composition::Device); 138 break; 139 default: 140 break; 141 } 142 143 if (!valid) { 144 ALOGE("Invalid layer type change: %s --> %s", to_string(from).c_str(), 145 to_string(to).c_str()); 146 } 147} 148 149void HWComposer::hotplug(const std::shared_ptr<HWC2::Display>& display, 150 HWC2::Connection connected) { 151 ALOGV("hotplug: %" PRIu64 ", %s", display->getId(), 152 to_string(connected).c_str()); 153 int32_t disp = 0; 154 if (!mDisplayData[0].hwcDisplay) { 155 ALOGE_IF(connected != HWC2::Connection::Connected, "Assumed primary" 156 " display would be connected"); 157 mDisplayData[0].hwcDisplay = display; 158 mHwcDisplaySlots[display->getId()] = 0; 159 disp = DisplayDevice::DISPLAY_PRIMARY; 160 } else { 161 // Disconnect is handled through HWComposer::disconnectDisplay via 162 // SurfaceFlinger's onHotplugReceived callback handling 163 if (connected == HWC2::Connection::Connected) { 164 mDisplayData[1].hwcDisplay = display; 165 mHwcDisplaySlots[display->getId()] = 1; 166 } 167 disp = DisplayDevice::DISPLAY_EXTERNAL; 168 } 169 mEventHandler->onHotplugReceived(this, disp, 170 connected == HWC2::Connection::Connected); 171} 172 173void HWComposer::invalidate(const std::shared_ptr<HWC2::Display>& /*display*/) { 174 mEventHandler->onInvalidateReceived(this); 175} 176 177void HWComposer::vsync(const std::shared_ptr<HWC2::Display>& display, 178 int64_t timestamp) { 179 auto displayType = HWC2::DisplayType::Invalid; 180 auto error = display->getType(&displayType); 181 if (error != HWC2::Error::None) { 182 ALOGE("vsync: Failed to determine type of display %" PRIu64, 183 display->getId()); 184 return; 185 } 186 187 if (displayType == HWC2::DisplayType::Virtual) { 188 ALOGE("Virtual display %" PRIu64 " passed to vsync callback", 189 display->getId()); 190 return; 191 } 192 193 if (mHwcDisplaySlots.count(display->getId()) == 0) { 194 ALOGE("Unknown physical display %" PRIu64 " passed to vsync callback", 195 display->getId()); 196 return; 197 } 198 199 int32_t disp = mHwcDisplaySlots[display->getId()]; 200 { 201 Mutex::Autolock _l(mLock); 202 203 // There have been reports of HWCs that signal several vsync events 204 // with the same timestamp when turning the display off and on. This 205 // is a bug in the HWC implementation, but filter the extra events 206 // out here so they don't cause havoc downstream. 207 if (timestamp == mLastHwVSync[disp]) { 208 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")", 209 timestamp); 210 return; 211 } 212 213 mLastHwVSync[disp] = timestamp; 214 } 215 216 char tag[16]; 217 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp); 218 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1); 219 220 mEventHandler->onVSyncReceived(this, disp, timestamp); 221} 222 223status_t HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height, 224 android_pixel_format_t* format, int32_t *outId) { 225 if (mRemainingHwcVirtualDisplays == 0) { 226 ALOGE("allocateVirtualDisplay: No remaining virtual displays"); 227 return NO_MEMORY; 228 } 229 230 if (SurfaceFlinger::maxVirtualDisplaySize != 0 && 231 (width > SurfaceFlinger::maxVirtualDisplaySize || 232 height > SurfaceFlinger::maxVirtualDisplaySize)) { 233 ALOGE("createVirtualDisplay: Can't create a virtual display with" 234 " a dimension > %" PRIu64 " (tried %u x %u)", 235 SurfaceFlinger::maxVirtualDisplaySize, width, height); 236 return INVALID_OPERATION; 237 } 238 239 std::shared_ptr<HWC2::Display> display; 240 auto error = mHwcDevice->createVirtualDisplay(width, height, format, 241 &display); 242 if (error != HWC2::Error::None) { 243 ALOGE("allocateVirtualDisplay: Failed to create HWC virtual display"); 244 return NO_MEMORY; 245 } 246 247 size_t displaySlot = 0; 248 if (!mFreeDisplaySlots.empty()) { 249 displaySlot = *mFreeDisplaySlots.begin(); 250 mFreeDisplaySlots.erase(displaySlot); 251 } else if (mDisplayData.size() < INT32_MAX) { 252 // Don't bother allocating a slot larger than we can return 253 displaySlot = mDisplayData.size(); 254 mDisplayData.resize(displaySlot + 1); 255 } else { 256 ALOGE("allocateVirtualDisplay: Unable to allocate a display slot"); 257 return NO_MEMORY; 258 } 259 260 mDisplayData[displaySlot].hwcDisplay = display; 261 262 --mRemainingHwcVirtualDisplays; 263 *outId = static_cast<int32_t>(displaySlot); 264 265 return NO_ERROR; 266} 267 268std::shared_ptr<HWC2::Layer> HWComposer::createLayer(int32_t displayId) { 269 if (!isValidDisplay(displayId)) { 270 ALOGE("Failed to create layer on invalid display %d", displayId); 271 return nullptr; 272 } 273 auto display = mDisplayData[displayId].hwcDisplay; 274 std::shared_ptr<HWC2::Layer> layer; 275 auto error = display->createLayer(&layer); 276 if (error != HWC2::Error::None) { 277 ALOGE("Failed to create layer on display %d: %s (%d)", displayId, 278 to_string(error).c_str(), static_cast<int32_t>(error)); 279 return nullptr; 280 } 281 return layer; 282} 283 284nsecs_t HWComposer::getRefreshTimestamp(int32_t displayId) const { 285 // this returns the last refresh timestamp. 286 // if the last one is not available, we estimate it based on 287 // the refresh period and whatever closest timestamp we have. 288 Mutex::Autolock _l(mLock); 289 nsecs_t now = systemTime(CLOCK_MONOTONIC); 290 auto vsyncPeriod = getActiveConfig(displayId)->getVsyncPeriod(); 291 return now - ((now - mLastHwVSync[displayId]) % vsyncPeriod); 292} 293 294bool HWComposer::isConnected(int32_t displayId) const { 295 if (!isValidDisplay(displayId)) { 296 ALOGE("isConnected: Attempted to access invalid display %d", displayId); 297 return false; 298 } 299 return mDisplayData[displayId].hwcDisplay->isConnected(); 300} 301 302std::vector<std::shared_ptr<const HWC2::Display::Config>> 303 HWComposer::getConfigs(int32_t displayId) const { 304 if (!isValidDisplay(displayId)) { 305 ALOGE("getConfigs: Attempted to access invalid display %d", displayId); 306 return {}; 307 } 308 auto& displayData = mDisplayData[displayId]; 309 auto configs = mDisplayData[displayId].hwcDisplay->getConfigs(); 310 if (displayData.configMap.empty()) { 311 for (size_t i = 0; i < configs.size(); ++i) { 312 displayData.configMap[i] = configs[i]; 313 } 314 } 315 return configs; 316} 317 318std::shared_ptr<const HWC2::Display::Config> 319 HWComposer::getActiveConfig(int32_t displayId) const { 320 if (!isValidDisplay(displayId)) { 321 ALOGV("getActiveConfigs: Attempted to access invalid display %d", 322 displayId); 323 return nullptr; 324 } 325 std::shared_ptr<const HWC2::Display::Config> config; 326 auto error = mDisplayData[displayId].hwcDisplay->getActiveConfig(&config); 327 if (error == HWC2::Error::BadConfig) { 328 ALOGE("getActiveConfig: No config active, returning null"); 329 return nullptr; 330 } else if (error != HWC2::Error::None) { 331 ALOGE("getActiveConfig failed for display %d: %s (%d)", displayId, 332 to_string(error).c_str(), static_cast<int32_t>(error)); 333 return nullptr; 334 } else if (!config) { 335 ALOGE("getActiveConfig returned an unknown config for display %d", 336 displayId); 337 return nullptr; 338 } 339 340 return config; 341} 342 343std::vector<android_color_mode_t> HWComposer::getColorModes(int32_t displayId) const { 344 std::vector<android_color_mode_t> modes; 345 346 if (!isValidDisplay(displayId)) { 347 ALOGE("getColorModes: Attempted to access invalid display %d", 348 displayId); 349 return modes; 350 } 351 const std::shared_ptr<HWC2::Display>& hwcDisplay = 352 mDisplayData[displayId].hwcDisplay; 353 354 auto error = hwcDisplay->getColorModes(&modes); 355 if (error != HWC2::Error::None) { 356 ALOGE("getColorModes failed for display %d: %s (%d)", displayId, 357 to_string(error).c_str(), static_cast<int32_t>(error)); 358 return std::vector<android_color_mode_t>(); 359 } 360 361 return modes; 362} 363 364status_t HWComposer::setActiveColorMode(int32_t displayId, android_color_mode_t mode) { 365 if (!isValidDisplay(displayId)) { 366 ALOGE("setActiveColorMode: Display %d is not valid", displayId); 367 return BAD_INDEX; 368 } 369 370 auto& displayData = mDisplayData[displayId]; 371 auto error = displayData.hwcDisplay->setColorMode(mode); 372 if (error != HWC2::Error::None) { 373 ALOGE("setActiveConfig: Failed to set color mode %d on display %d: " 374 "%s (%d)", mode, displayId, to_string(error).c_str(), 375 static_cast<int32_t>(error)); 376 return UNKNOWN_ERROR; 377 } 378 379 return NO_ERROR; 380} 381 382 383void HWComposer::setVsyncEnabled(int32_t displayId, HWC2::Vsync enabled) { 384 if (displayId < 0 || displayId >= HWC_DISPLAY_VIRTUAL) { 385 ALOGD("setVsyncEnabled: Ignoring for virtual display %d", displayId); 386 return; 387 } 388 389 if (!isValidDisplay(displayId)) { 390 ALOGE("setVsyncEnabled: Attempted to access invalid display %d", 391 displayId); 392 return; 393 } 394 395 // NOTE: we use our own internal lock here because we have to call 396 // into the HWC with the lock held, and we want to make sure 397 // that even if HWC blocks (which it shouldn't), it won't 398 // affect other threads. 399 Mutex::Autolock _l(mVsyncLock); 400 auto& displayData = mDisplayData[displayId]; 401 if (enabled != displayData.vsyncEnabled) { 402 ATRACE_CALL(); 403 auto error = displayData.hwcDisplay->setVsyncEnabled(enabled); 404 if (error == HWC2::Error::None) { 405 displayData.vsyncEnabled = enabled; 406 407 char tag[16]; 408 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", displayId); 409 ATRACE_INT(tag, enabled == HWC2::Vsync::Enable ? 1 : 0); 410 } else { 411 ALOGE("setVsyncEnabled: Failed to set vsync to %s on %d/%" PRIu64 412 ": %s (%d)", to_string(enabled).c_str(), displayId, 413 mDisplayData[displayId].hwcDisplay->getId(), 414 to_string(error).c_str(), static_cast<int32_t>(error)); 415 } 416 } 417} 418 419status_t HWComposer::setClientTarget(int32_t displayId, uint32_t slot, 420 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target, 421 android_dataspace_t dataspace) { 422 if (!isValidDisplay(displayId)) { 423 return BAD_INDEX; 424 } 425 426 ALOGV("setClientTarget for display %d", displayId); 427 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 428 auto error = hwcDisplay->setClientTarget(slot, target, acquireFence, dataspace); 429 if (error != HWC2::Error::None) { 430 ALOGE("Failed to set client target for display %d: %s (%d)", displayId, 431 to_string(error).c_str(), static_cast<int32_t>(error)); 432 return BAD_VALUE; 433 } 434 435 return NO_ERROR; 436} 437 438status_t HWComposer::prepare(DisplayDevice& displayDevice) { 439 ATRACE_CALL(); 440 441 Mutex::Autolock _l(mDisplayLock); 442 auto displayId = displayDevice.getHwcDisplayId(); 443 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 444 ALOGV("Skipping HWComposer prepare for non-HWC display"); 445 return NO_ERROR; 446 } 447 if (!isValidDisplay(displayId)) { 448 return BAD_INDEX; 449 } 450 451 auto& displayData = mDisplayData[displayId]; 452 auto& hwcDisplay = displayData.hwcDisplay; 453 if (!hwcDisplay->isConnected()) { 454 return NO_ERROR; 455 } 456 457 uint32_t numTypes = 0; 458 uint32_t numRequests = 0; 459 460 HWC2::Error error = HWC2::Error::None; 461 462 // First try to skip validate altogether if the HWC supports it. 463 displayData.validateWasSkipped = false; 464 if (hasCapability(HWC2::Capability::SkipValidate) && 465 !displayData.hasClientComposition) { 466 sp<android::Fence> outPresentFence; 467 uint32_t state = UINT32_MAX; 468 error = hwcDisplay->presentOrValidate(&numTypes, &numRequests, &outPresentFence , &state); 469 if (error != HWC2::Error::None && error != HWC2::Error::HasChanges) { 470 ALOGV("skipValidate: Failed to Present or Validate"); 471 return UNKNOWN_ERROR; 472 } 473 if (state == 1) { //Present Succeeded. 474 std::unordered_map<std::shared_ptr<HWC2::Layer>, sp<Fence>> releaseFences; 475 error = hwcDisplay->getReleaseFences(&releaseFences); 476 displayData.releaseFences = std::move(releaseFences); 477 displayData.lastPresentFence = outPresentFence; 478 displayData.validateWasSkipped = true; 479 displayData.presentError = error; 480 return NO_ERROR; 481 } 482 // Present failed but Validate ran. 483 } else { 484 error = hwcDisplay->validate(&numTypes, &numRequests); 485 } 486 ALOGV("SkipValidate failed, Falling back to SLOW validate/present"); 487 if (error != HWC2::Error::None && error != HWC2::Error::HasChanges) { 488 ALOGE("prepare: validate failed for display %d: %s (%d)", displayId, 489 to_string(error).c_str(), static_cast<int32_t>(error)); 490 return BAD_INDEX; 491 } 492 493 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::Composition> 494 changedTypes; 495 changedTypes.reserve(numTypes); 496 error = hwcDisplay->getChangedCompositionTypes(&changedTypes); 497 if (error != HWC2::Error::None) { 498 ALOGE("prepare: getChangedCompositionTypes failed on display %d: " 499 "%s (%d)", displayId, to_string(error).c_str(), 500 static_cast<int32_t>(error)); 501 return BAD_INDEX; 502 } 503 504 505 displayData.displayRequests = static_cast<HWC2::DisplayRequest>(0); 506 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::LayerRequest> 507 layerRequests; 508 layerRequests.reserve(numRequests); 509 error = hwcDisplay->getRequests(&displayData.displayRequests, 510 &layerRequests); 511 if (error != HWC2::Error::None) { 512 ALOGE("prepare: getRequests failed on display %d: %s (%d)", displayId, 513 to_string(error).c_str(), static_cast<int32_t>(error)); 514 return BAD_INDEX; 515 } 516 517 displayData.hasClientComposition = false; 518 displayData.hasDeviceComposition = false; 519 for (auto& layer : displayDevice.getVisibleLayersSortedByZ()) { 520 auto hwcLayer = layer->getHwcLayer(displayId); 521 522 if (changedTypes.count(hwcLayer) != 0) { 523 // We pass false so we only update our state and don't call back 524 // into the HWC device 525 validateChange(layer->getCompositionType(displayId), 526 changedTypes[hwcLayer]); 527 layer->setCompositionType(displayId, changedTypes[hwcLayer], false); 528 } 529 530 switch (layer->getCompositionType(displayId)) { 531 case HWC2::Composition::Client: 532 displayData.hasClientComposition = true; 533 break; 534 case HWC2::Composition::Device: 535 case HWC2::Composition::SolidColor: 536 case HWC2::Composition::Cursor: 537 case HWC2::Composition::Sideband: 538 displayData.hasDeviceComposition = true; 539 break; 540 default: 541 break; 542 } 543 544 if (layerRequests.count(hwcLayer) != 0 && 545 layerRequests[hwcLayer] == 546 HWC2::LayerRequest::ClearClientTarget) { 547 layer->setClearClientTarget(displayId, true); 548 } else { 549 if (layerRequests.count(hwcLayer) != 0) { 550 ALOGE("prepare: Unknown layer request: %s", 551 to_string(layerRequests[hwcLayer]).c_str()); 552 } 553 layer->setClearClientTarget(displayId, false); 554 } 555 } 556 557 error = hwcDisplay->acceptChanges(); 558 if (error != HWC2::Error::None) { 559 ALOGE("prepare: acceptChanges failed: %s", to_string(error).c_str()); 560 return BAD_INDEX; 561 } 562 563 return NO_ERROR; 564} 565 566bool HWComposer::hasDeviceComposition(int32_t displayId) const { 567 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 568 // Displays without a corresponding HWC display are never composed by 569 // the device 570 return false; 571 } 572 if (!isValidDisplay(displayId)) { 573 ALOGE("hasDeviceComposition: Invalid display %d", displayId); 574 return false; 575 } 576 return mDisplayData[displayId].hasDeviceComposition; 577} 578 579bool HWComposer::hasClientComposition(int32_t displayId) const { 580 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 581 // Displays without a corresponding HWC display are always composed by 582 // the client 583 return true; 584 } 585 if (!isValidDisplay(displayId)) { 586 ALOGE("hasClientComposition: Invalid display %d", displayId); 587 return true; 588 } 589 return mDisplayData[displayId].hasClientComposition; 590} 591 592sp<Fence> HWComposer::getPresentFence(int32_t displayId) const { 593 if (!isValidDisplay(displayId)) { 594 ALOGE("getPresentFence failed for invalid display %d", displayId); 595 return Fence::NO_FENCE; 596 } 597 return mDisplayData[displayId].lastPresentFence; 598} 599 600sp<Fence> HWComposer::getLayerReleaseFence(int32_t displayId, 601 const std::shared_ptr<HWC2::Layer>& layer) const { 602 if (!isValidDisplay(displayId)) { 603 ALOGE("getLayerReleaseFence: Invalid display"); 604 return Fence::NO_FENCE; 605 } 606 auto displayFences = mDisplayData[displayId].releaseFences; 607 if (displayFences.count(layer) == 0) { 608 ALOGV("getLayerReleaseFence: Release fence not found"); 609 return Fence::NO_FENCE; 610 } 611 return displayFences[layer]; 612} 613 614status_t HWComposer::presentAndGetReleaseFences(int32_t displayId) { 615 ATRACE_CALL(); 616 617 if (!isValidDisplay(displayId)) { 618 return BAD_INDEX; 619 } 620 621 auto& displayData = mDisplayData[displayId]; 622 auto& hwcDisplay = displayData.hwcDisplay; 623 624 if (displayData.validateWasSkipped) { 625 hwcDisplay->discardCommands(); 626 auto error = displayData.presentError; 627 if (error != HWC2::Error::None) { 628 ALOGE("skipValidate: failed for display %d: %s (%d)", 629 displayId, to_string(error).c_str(), static_cast<int32_t>(error)); 630 return UNKNOWN_ERROR; 631 } 632 return NO_ERROR; 633 } 634 635 auto error = hwcDisplay->present(&displayData.lastPresentFence); 636 if (error != HWC2::Error::None) { 637 ALOGE("presentAndGetReleaseFences: failed for display %d: %s (%d)", 638 displayId, to_string(error).c_str(), static_cast<int32_t>(error)); 639 return UNKNOWN_ERROR; 640 } 641 642 std::unordered_map<std::shared_ptr<HWC2::Layer>, sp<Fence>> releaseFences; 643 error = hwcDisplay->getReleaseFences(&releaseFences); 644 if (error != HWC2::Error::None) { 645 ALOGE("presentAndGetReleaseFences: Failed to get release fences " 646 "for display %d: %s (%d)", 647 displayId, to_string(error).c_str(), 648 static_cast<int32_t>(error)); 649 return UNKNOWN_ERROR; 650 } 651 652 displayData.releaseFences = std::move(releaseFences); 653 654 return NO_ERROR; 655} 656 657status_t HWComposer::setPowerMode(int32_t displayId, int32_t intMode) { 658 ALOGV("setPowerMode(%d, %d)", displayId, intMode); 659 if (!isValidDisplay(displayId)) { 660 ALOGE("setPowerMode: Bad display"); 661 return BAD_INDEX; 662 } 663 if (displayId >= VIRTUAL_DISPLAY_ID_BASE) { 664 ALOGE("setPowerMode: Virtual display %d passed in, returning", 665 displayId); 666 return BAD_INDEX; 667 } 668 669 auto mode = static_cast<HWC2::PowerMode>(intMode); 670 if (mode == HWC2::PowerMode::Off) { 671 setVsyncEnabled(displayId, HWC2::Vsync::Disable); 672 } 673 674 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 675 switch (mode) { 676 case HWC2::PowerMode::Off: 677 case HWC2::PowerMode::On: 678 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 679 { 680 auto error = hwcDisplay->setPowerMode(mode); 681 if (error != HWC2::Error::None) { 682 ALOGE("setPowerMode: Unable to set power mode %s for " 683 "display %d: %s (%d)", to_string(mode).c_str(), 684 displayId, to_string(error).c_str(), 685 static_cast<int32_t>(error)); 686 } 687 } 688 break; 689 case HWC2::PowerMode::Doze: 690 case HWC2::PowerMode::DozeSuspend: 691 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 692 { 693 bool supportsDoze = false; 694 auto error = hwcDisplay->supportsDoze(&supportsDoze); 695 if (error != HWC2::Error::None) { 696 ALOGE("setPowerMode: Unable to query doze support for " 697 "display %d: %s (%d)", displayId, 698 to_string(error).c_str(), 699 static_cast<int32_t>(error)); 700 } 701 if (!supportsDoze) { 702 mode = HWC2::PowerMode::On; 703 } 704 705 error = hwcDisplay->setPowerMode(mode); 706 if (error != HWC2::Error::None) { 707 ALOGE("setPowerMode: Unable to set power mode %s for " 708 "display %d: %s (%d)", to_string(mode).c_str(), 709 displayId, to_string(error).c_str(), 710 static_cast<int32_t>(error)); 711 } 712 } 713 break; 714 default: 715 ALOGV("setPowerMode: Not calling HWC"); 716 break; 717 } 718 719 return NO_ERROR; 720} 721 722status_t HWComposer::setActiveConfig(int32_t displayId, size_t configId) { 723 if (!isValidDisplay(displayId)) { 724 ALOGE("setActiveConfig: Display %d is not valid", displayId); 725 return BAD_INDEX; 726 } 727 728 auto& displayData = mDisplayData[displayId]; 729 if (displayData.configMap.count(configId) == 0) { 730 ALOGE("setActiveConfig: Invalid config %zd", configId); 731 return BAD_INDEX; 732 } 733 734 auto error = displayData.hwcDisplay->setActiveConfig( 735 displayData.configMap[configId]); 736 if (error != HWC2::Error::None) { 737 ALOGE("setActiveConfig: Failed to set config %zu on display %d: " 738 "%s (%d)", configId, displayId, to_string(error).c_str(), 739 static_cast<int32_t>(error)); 740 return UNKNOWN_ERROR; 741 } 742 743 return NO_ERROR; 744} 745 746status_t HWComposer::setColorTransform(int32_t displayId, 747 const mat4& transform) { 748 if (!isValidDisplay(displayId)) { 749 ALOGE("setColorTransform: Display %d is not valid", displayId); 750 return BAD_INDEX; 751 } 752 753 auto& displayData = mDisplayData[displayId]; 754 bool isIdentity = transform == mat4(); 755 auto error = displayData.hwcDisplay->setColorTransform(transform, 756 isIdentity ? HAL_COLOR_TRANSFORM_IDENTITY : 757 HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX); 758 if (error != HWC2::Error::None) { 759 ALOGE("setColorTransform: Failed to set transform on display %d: " 760 "%s (%d)", displayId, to_string(error).c_str(), 761 static_cast<int32_t>(error)); 762 return UNKNOWN_ERROR; 763 } 764 765 return NO_ERROR; 766} 767 768void HWComposer::disconnectDisplay(int displayId) { 769 LOG_ALWAYS_FATAL_IF(displayId < 0); 770 auto& displayData = mDisplayData[displayId]; 771 772 auto displayType = HWC2::DisplayType::Invalid; 773 auto error = displayData.hwcDisplay->getType(&displayType); 774 if (error != HWC2::Error::None) { 775 ALOGE("disconnectDisplay: Failed to determine type of display %d", 776 displayId); 777 return; 778 } 779 780 // If this was a virtual display, add its slot back for reuse by future 781 // virtual displays 782 if (displayType == HWC2::DisplayType::Virtual) { 783 mFreeDisplaySlots.insert(displayId); 784 ++mRemainingHwcVirtualDisplays; 785 } 786 787 auto hwcId = displayData.hwcDisplay->getId(); 788 mHwcDisplaySlots.erase(hwcId); 789 displayData.reset(); 790} 791 792status_t HWComposer::setOutputBuffer(int32_t displayId, 793 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 794 if (!isValidDisplay(displayId)) { 795 ALOGE("setOutputBuffer: Display %d is not valid", displayId); 796 return BAD_INDEX; 797 } 798 799 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 800 auto displayType = HWC2::DisplayType::Invalid; 801 auto error = hwcDisplay->getType(&displayType); 802 if (error != HWC2::Error::None) { 803 ALOGE("setOutputBuffer: Failed to determine type of display %d", 804 displayId); 805 return NAME_NOT_FOUND; 806 } 807 808 if (displayType != HWC2::DisplayType::Virtual) { 809 ALOGE("setOutputBuffer: Display %d is not virtual", displayId); 810 return INVALID_OPERATION; 811 } 812 813 error = hwcDisplay->setOutputBuffer(buffer, acquireFence); 814 if (error != HWC2::Error::None) { 815 ALOGE("setOutputBuffer: Failed to set buffer on display %d: %s (%d)", 816 displayId, to_string(error).c_str(), 817 static_cast<int32_t>(error)); 818 return UNKNOWN_ERROR; 819 } 820 821 return NO_ERROR; 822} 823 824void HWComposer::clearReleaseFences(int32_t displayId) { 825 if (!isValidDisplay(displayId)) { 826 ALOGE("clearReleaseFences: Display %d is not valid", displayId); 827 return; 828 } 829 mDisplayData[displayId].releaseFences.clear(); 830} 831 832std::unique_ptr<HdrCapabilities> HWComposer::getHdrCapabilities( 833 int32_t displayId) { 834 if (!isValidDisplay(displayId)) { 835 ALOGE("getHdrCapabilities: Display %d is not valid", displayId); 836 return nullptr; 837 } 838 839 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 840 std::unique_ptr<HdrCapabilities> capabilities; 841 auto error = hwcDisplay->getHdrCapabilities(&capabilities); 842 if (error != HWC2::Error::None) { 843 ALOGE("getOutputCapabilities: Failed to get capabilities on display %d:" 844 " %s (%d)", displayId, to_string(error).c_str(), 845 static_cast<int32_t>(error)); 846 return nullptr; 847 } 848 849 return capabilities; 850} 851 852// Converts a PixelFormat to a human-readable string. Max 11 chars. 853// (Could use a table of prefab String8 objects.) 854/* 855static String8 getFormatStr(PixelFormat format) { 856 switch (format) { 857 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888"); 858 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888"); 859 case PIXEL_FORMAT_RGB_888: return String8("RGB_888"); 860 case PIXEL_FORMAT_RGB_565: return String8("RGB_565"); 861 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888"); 862 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 863 return String8("ImplDef"); 864 default: 865 String8 result; 866 result.appendFormat("? %08x", format); 867 return result; 868 } 869} 870*/ 871 872bool HWComposer::isUsingVrComposer() const { 873 return getComposer()->isUsingVrComposer(); 874} 875 876void HWComposer::dump(String8& result) const { 877 // TODO: In order to provide a dump equivalent to HWC1, we need to shadow 878 // all the state going into the layers. This is probably better done in 879 // Layer itself, but it's going to take a bit of work to get there. 880 result.append(mHwcDevice->dump().c_str()); 881} 882 883// --------------------------------------------------------------------------- 884 885HWComposer::DisplayData::DisplayData() 886 : hasClientComposition(false), 887 hasDeviceComposition(false), 888 hwcDisplay(), 889 lastPresentFence(Fence::NO_FENCE), 890 outbufHandle(nullptr), 891 outbufAcquireFence(Fence::NO_FENCE), 892 vsyncEnabled(HWC2::Vsync::Disable) { 893 ALOGV("Created new DisplayData"); 894} 895 896HWComposer::DisplayData::~DisplayData() { 897} 898 899void HWComposer::DisplayData::reset() { 900 ALOGV("DisplayData reset"); 901 *this = DisplayData(); 902} 903 904// --------------------------------------------------------------------------- 905}; // namespace android 906