HWComposer.cpp revision df0b7059646db0734f614e0dd651e0ac6ce82211
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/log.h> 47#include <cutils/properties.h> 48 49#include "HWComposer.h" 50#include "HWC2On1Adapter.h" 51#include "HWC2.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 sp<SurfaceFlinger>& flinger) 63 : mFlinger(flinger), 64 mAdapter(), 65 mHwcDevice(), 66 mDisplayData(2), 67 mFreeDisplaySlots(), 68 mHwcDisplaySlots(), 69 mCBContext(), 70 mEventHandler(nullptr), 71 mVSyncCounts(), 72 mRemainingHwcVirtualDisplays(0) 73{ 74 for (size_t i=0 ; i<HWC_NUM_PHYSICAL_DISPLAY_TYPES ; i++) { 75 mLastHwVSync[i] = 0; 76 mVSyncCounts[i] = 0; 77 } 78 79 loadHwcModule(); 80} 81 82HWComposer::~HWComposer() {} 83 84void HWComposer::setEventHandler(EventHandler* handler) 85{ 86 if (handler == nullptr) { 87 ALOGE("setEventHandler: Rejected attempt to clear handler"); 88 return; 89 } 90 91 bool wasNull = (mEventHandler == nullptr); 92 mEventHandler = handler; 93 94 if (wasNull) { 95 auto hotplugHook = std::bind(&HWComposer::hotplug, this, 96 std::placeholders::_1, std::placeholders::_2); 97 mHwcDevice->registerHotplugCallback(hotplugHook); 98 auto invalidateHook = std::bind(&HWComposer::invalidate, this, 99 std::placeholders::_1); 100 mHwcDevice->registerRefreshCallback(invalidateHook); 101 auto vsyncHook = std::bind(&HWComposer::vsync, this, 102 std::placeholders::_1, std::placeholders::_2); 103 mHwcDevice->registerVsyncCallback(vsyncHook); 104 } 105} 106 107// Load and prepare the hardware composer module. Sets mHwc. 108void HWComposer::loadHwcModule() 109{ 110 ALOGV("loadHwcModule"); 111 112#ifdef BYPASS_IHWC 113 hw_module_t const* module; 114 115 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 116 ALOGE("%s module not found, aborting", HWC_HARDWARE_MODULE_ID); 117 abort(); 118 } 119 120 hw_device_t* device = nullptr; 121 int error = module->methods->open(module, HWC_HARDWARE_COMPOSER, &device); 122 if (error != 0) { 123 ALOGE("Failed to open HWC device (%s), aborting", strerror(-error)); 124 abort(); 125 } 126 127 uint32_t majorVersion = (device->version >> 24) & 0xF; 128 if (majorVersion == 2) { 129 mHwcDevice = std::make_unique<HWC2::Device>( 130 reinterpret_cast<hwc2_device_t*>(device)); 131 } else { 132 mAdapter = std::make_unique<HWC2On1Adapter>( 133 reinterpret_cast<hwc_composer_device_1_t*>(device)); 134 uint8_t minorVersion = mAdapter->getHwc1MinorVersion(); 135 if (minorVersion < 1) { 136 ALOGE("Cannot adapt to HWC version %d.%d", 137 static_cast<int32_t>((minorVersion >> 8) & 0xF), 138 static_cast<int32_t>(minorVersion & 0xF)); 139 abort(); 140 } 141 mHwcDevice = std::make_unique<HWC2::Device>( 142 static_cast<hwc2_device_t*>(mAdapter.get())); 143 } 144#else 145 mHwcDevice = std::make_unique<HWC2::Device>(); 146#endif 147 148 mRemainingHwcVirtualDisplays = mHwcDevice->getMaxVirtualDisplayCount(); 149} 150 151bool HWComposer::hasCapability(HWC2::Capability capability) const 152{ 153 return mHwcDevice->getCapabilities().count(capability) > 0; 154} 155 156bool HWComposer::isValidDisplay(int32_t displayId) const { 157 return static_cast<size_t>(displayId) < mDisplayData.size() && 158 mDisplayData[displayId].hwcDisplay; 159} 160 161void HWComposer::validateChange(HWC2::Composition from, HWC2::Composition to) { 162 bool valid = true; 163 switch (from) { 164 case HWC2::Composition::Client: 165 valid = false; 166 break; 167 case HWC2::Composition::Device: 168 case HWC2::Composition::SolidColor: 169 valid = (to == HWC2::Composition::Client); 170 break; 171 case HWC2::Composition::Cursor: 172 case HWC2::Composition::Sideband: 173 valid = (to == HWC2::Composition::Client || 174 to == HWC2::Composition::Device); 175 break; 176 default: 177 break; 178 } 179 180 if (!valid) { 181 ALOGE("Invalid layer type change: %s --> %s", to_string(from).c_str(), 182 to_string(to).c_str()); 183 } 184} 185 186void HWComposer::hotplug(const std::shared_ptr<HWC2::Display>& display, 187 HWC2::Connection connected) { 188 ALOGV("hotplug: %" PRIu64 ", %s", display->getId(), 189 to_string(connected).c_str()); 190 int32_t disp = 0; 191 if (!mDisplayData[0].hwcDisplay) { 192 ALOGE_IF(connected != HWC2::Connection::Connected, "Assumed primary" 193 " display would be connected"); 194 mDisplayData[0].hwcDisplay = display; 195 mHwcDisplaySlots[display->getId()] = 0; 196 disp = DisplayDevice::DISPLAY_PRIMARY; 197 } else { 198 // Disconnect is handled through HWComposer::disconnectDisplay via 199 // SurfaceFlinger's onHotplugReceived callback handling 200 if (connected == HWC2::Connection::Connected) { 201 mDisplayData[1].hwcDisplay = display; 202 mHwcDisplaySlots[display->getId()] = 1; 203 } 204 disp = DisplayDevice::DISPLAY_EXTERNAL; 205 } 206 mEventHandler->onHotplugReceived(disp, 207 connected == HWC2::Connection::Connected); 208} 209 210void HWComposer::invalidate(const std::shared_ptr<HWC2::Display>& /*display*/) { 211 mFlinger->repaintEverything(); 212} 213 214void HWComposer::vsync(const std::shared_ptr<HWC2::Display>& display, 215 int64_t timestamp) { 216 auto displayType = HWC2::DisplayType::Invalid; 217 auto error = display->getType(&displayType); 218 if (error != HWC2::Error::None) { 219 ALOGE("vsync: Failed to determine type of display %" PRIu64, 220 display->getId()); 221 return; 222 } 223 224 if (displayType == HWC2::DisplayType::Virtual) { 225 ALOGE("Virtual display %" PRIu64 " passed to vsync callback", 226 display->getId()); 227 return; 228 } 229 230 if (mHwcDisplaySlots.count(display->getId()) == 0) { 231 ALOGE("Unknown physical display %" PRIu64 " passed to vsync callback", 232 display->getId()); 233 return; 234 } 235 236 int32_t disp = mHwcDisplaySlots[display->getId()]; 237 { 238 Mutex::Autolock _l(mLock); 239 240 // There have been reports of HWCs that signal several vsync events 241 // with the same timestamp when turning the display off and on. This 242 // is a bug in the HWC implementation, but filter the extra events 243 // out here so they don't cause havoc downstream. 244 if (timestamp == mLastHwVSync[disp]) { 245 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")", 246 timestamp); 247 return; 248 } 249 250 mLastHwVSync[disp] = timestamp; 251 } 252 253 char tag[16]; 254 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp); 255 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1); 256 257 mEventHandler->onVSyncReceived(disp, timestamp); 258} 259 260status_t HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height, 261 android_pixel_format_t* format, int32_t *outId) { 262 if (mRemainingHwcVirtualDisplays == 0) { 263 ALOGE("allocateVirtualDisplay: No remaining virtual displays"); 264 return NO_MEMORY; 265 } 266 267 std::shared_ptr<HWC2::Display> display; 268 auto error = mHwcDevice->createVirtualDisplay(width, height, format, 269 &display); 270 if (error != HWC2::Error::None) { 271 ALOGE("allocateVirtualDisplay: Failed to create HWC virtual display"); 272 return NO_MEMORY; 273 } 274 275 size_t displaySlot = 0; 276 if (!mFreeDisplaySlots.empty()) { 277 displaySlot = *mFreeDisplaySlots.begin(); 278 mFreeDisplaySlots.erase(displaySlot); 279 } else if (mDisplayData.size() < INT32_MAX) { 280 // Don't bother allocating a slot larger than we can return 281 displaySlot = mDisplayData.size(); 282 mDisplayData.resize(displaySlot + 1); 283 } else { 284 ALOGE("allocateVirtualDisplay: Unable to allocate a display slot"); 285 return NO_MEMORY; 286 } 287 288 mDisplayData[displaySlot].hwcDisplay = display; 289 290 --mRemainingHwcVirtualDisplays; 291 *outId = static_cast<int32_t>(displaySlot); 292 293 return NO_ERROR; 294} 295 296std::shared_ptr<HWC2::Layer> HWComposer::createLayer(int32_t displayId) { 297 if (!isValidDisplay(displayId)) { 298 ALOGE("Failed to create layer on invalid display %d", displayId); 299 return nullptr; 300 } 301 auto display = mDisplayData[displayId].hwcDisplay; 302 std::shared_ptr<HWC2::Layer> layer; 303 auto error = display->createLayer(&layer); 304 if (error != HWC2::Error::None) { 305 ALOGE("Failed to create layer on display %d: %s (%d)", displayId, 306 to_string(error).c_str(), static_cast<int32_t>(error)); 307 return nullptr; 308 } 309 return layer; 310} 311 312nsecs_t HWComposer::getRefreshTimestamp(int32_t displayId) const { 313 // this returns the last refresh timestamp. 314 // if the last one is not available, we estimate it based on 315 // the refresh period and whatever closest timestamp we have. 316 Mutex::Autolock _l(mLock); 317 nsecs_t now = systemTime(CLOCK_MONOTONIC); 318 auto vsyncPeriod = getActiveConfig(displayId)->getVsyncPeriod(); 319 return now - ((now - mLastHwVSync[displayId]) % vsyncPeriod); 320} 321 322bool HWComposer::isConnected(int32_t displayId) const { 323 if (!isValidDisplay(displayId)) { 324 ALOGE("isConnected: Attempted to access invalid display %d", displayId); 325 return false; 326 } 327 return mDisplayData[displayId].hwcDisplay->isConnected(); 328} 329 330std::vector<std::shared_ptr<const HWC2::Display::Config>> 331 HWComposer::getConfigs(int32_t displayId) const { 332 if (!isValidDisplay(displayId)) { 333 ALOGE("getConfigs: Attempted to access invalid display %d", displayId); 334 return {}; 335 } 336 auto& displayData = mDisplayData[displayId]; 337 auto configs = mDisplayData[displayId].hwcDisplay->getConfigs(); 338 if (displayData.configMap.empty()) { 339 for (size_t i = 0; i < configs.size(); ++i) { 340 displayData.configMap[i] = configs[i]; 341 } 342 } 343 return configs; 344} 345 346std::shared_ptr<const HWC2::Display::Config> 347 HWComposer::getActiveConfig(int32_t displayId) const { 348 if (!isValidDisplay(displayId)) { 349 ALOGV("getActiveConfigs: Attempted to access invalid display %d", 350 displayId); 351 return nullptr; 352 } 353 std::shared_ptr<const HWC2::Display::Config> config; 354 auto error = mDisplayData[displayId].hwcDisplay->getActiveConfig(&config); 355 if (error == HWC2::Error::BadConfig) { 356 ALOGE("getActiveConfig: No config active, returning null"); 357 return nullptr; 358 } else if (error != HWC2::Error::None) { 359 ALOGE("getActiveConfig failed for display %d: %s (%d)", displayId, 360 to_string(error).c_str(), static_cast<int32_t>(error)); 361 return nullptr; 362 } else if (!config) { 363 ALOGE("getActiveConfig returned an unknown config for display %d", 364 displayId); 365 return nullptr; 366 } 367 368 return config; 369} 370 371std::vector<android_color_mode_t> HWComposer::getColorModes(int32_t displayId) const { 372 std::vector<android_color_mode_t> modes; 373 374 if (!isValidDisplay(displayId)) { 375 ALOGE("getColorModes: Attempted to access invalid display %d", 376 displayId); 377 return modes; 378 } 379 const std::shared_ptr<HWC2::Display>& hwcDisplay = 380 mDisplayData[displayId].hwcDisplay; 381 382 auto error = hwcDisplay->getColorModes(&modes); 383 if (error != HWC2::Error::None) { 384 ALOGE("getColorModes failed for display %d: %s (%d)", displayId, 385 to_string(error).c_str(), static_cast<int32_t>(error)); 386 return std::vector<android_color_mode_t>(); 387 } 388 389 return modes; 390} 391 392status_t HWComposer::setActiveColorMode(int32_t displayId, android_color_mode_t mode) { 393 if (!isValidDisplay(displayId)) { 394 ALOGE("setActiveColorMode: Display %d is not valid", displayId); 395 return BAD_INDEX; 396 } 397 398 auto& displayData = mDisplayData[displayId]; 399 auto error = displayData.hwcDisplay->setColorMode(mode); 400 if (error != HWC2::Error::None) { 401 ALOGE("setActiveConfig: Failed to set color mode %d on display %d: " 402 "%s (%d)", mode, displayId, to_string(error).c_str(), 403 static_cast<int32_t>(error)); 404 return UNKNOWN_ERROR; 405 } 406 407 return NO_ERROR; 408} 409 410 411void HWComposer::setVsyncEnabled(int32_t displayId, HWC2::Vsync enabled) { 412 if (displayId < 0 || displayId >= HWC_DISPLAY_VIRTUAL) { 413 ALOGD("setVsyncEnabled: Ignoring for virtual display %d", displayId); 414 return; 415 } 416 417 if (!isValidDisplay(displayId)) { 418 ALOGE("setVsyncEnabled: Attempted to access invalid display %d", 419 displayId); 420 return; 421 } 422 423 // NOTE: we use our own internal lock here because we have to call 424 // into the HWC with the lock held, and we want to make sure 425 // that even if HWC blocks (which it shouldn't), it won't 426 // affect other threads. 427 Mutex::Autolock _l(mVsyncLock); 428 auto& displayData = mDisplayData[displayId]; 429 if (enabled != displayData.vsyncEnabled) { 430 ATRACE_CALL(); 431 auto error = displayData.hwcDisplay->setVsyncEnabled(enabled); 432 if (error == HWC2::Error::None) { 433 displayData.vsyncEnabled = enabled; 434 435 char tag[16]; 436 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", displayId); 437 ATRACE_INT(tag, enabled == HWC2::Vsync::Enable ? 1 : 0); 438 } else { 439 ALOGE("setVsyncEnabled: Failed to set vsync to %s on %d/%" PRIu64 440 ": %s (%d)", to_string(enabled).c_str(), displayId, 441 mDisplayData[displayId].hwcDisplay->getId(), 442 to_string(error).c_str(), static_cast<int32_t>(error)); 443 } 444 } 445} 446 447status_t HWComposer::setClientTarget(int32_t displayId, 448 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target, 449 android_dataspace_t dataspace) { 450 if (!isValidDisplay(displayId)) { 451 return BAD_INDEX; 452 } 453 454 ALOGV("setClientTarget for display %d", displayId); 455 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 456 buffer_handle_t handle = nullptr; 457 if ((target != nullptr) && target->getNativeBuffer()) { 458 handle = target->getNativeBuffer()->handle; 459 } 460 auto error = hwcDisplay->setClientTarget(handle, acquireFence, dataspace); 461 if (error != HWC2::Error::None) { 462 ALOGE("Failed to set client target for display %d: %s (%d)", displayId, 463 to_string(error).c_str(), static_cast<int32_t>(error)); 464 return BAD_VALUE; 465 } 466 467 return NO_ERROR; 468} 469 470status_t HWComposer::prepare(DisplayDevice& displayDevice) { 471 ATRACE_CALL(); 472 473 Mutex::Autolock _l(mDisplayLock); 474 auto displayId = displayDevice.getHwcDisplayId(); 475 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 476 ALOGV("Skipping HWComposer prepare for non-HWC display"); 477 return NO_ERROR; 478 } 479 if (!isValidDisplay(displayId)) { 480 return BAD_INDEX; 481 } 482 483 auto& displayData = mDisplayData[displayId]; 484 auto& hwcDisplay = displayData.hwcDisplay; 485 if (!hwcDisplay->isConnected()) { 486 return NO_ERROR; 487 } 488 489 uint32_t numTypes = 0; 490 uint32_t numRequests = 0; 491 auto error = hwcDisplay->validate(&numTypes, &numRequests); 492 if (error != HWC2::Error::None && error != HWC2::Error::HasChanges) { 493 ALOGE("prepare: validate failed for display %d: %s (%d)", displayId, 494 to_string(error).c_str(), static_cast<int32_t>(error)); 495 return BAD_INDEX; 496 } 497 498 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::Composition> 499 changedTypes; 500 changedTypes.reserve(numTypes); 501 error = hwcDisplay->getChangedCompositionTypes(&changedTypes); 502 if (error != HWC2::Error::None) { 503 ALOGE("prepare: getChangedCompositionTypes failed on display %d: " 504 "%s (%d)", displayId, to_string(error).c_str(), 505 static_cast<int32_t>(error)); 506 return BAD_INDEX; 507 } 508 509 510 displayData.displayRequests = static_cast<HWC2::DisplayRequest>(0); 511 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::LayerRequest> 512 layerRequests; 513 layerRequests.reserve(numRequests); 514 error = hwcDisplay->getRequests(&displayData.displayRequests, 515 &layerRequests); 516 if (error != HWC2::Error::None) { 517 ALOGE("prepare: getRequests failed on display %d: %s (%d)", displayId, 518 to_string(error).c_str(), static_cast<int32_t>(error)); 519 return BAD_INDEX; 520 } 521 522 displayData.hasClientComposition = false; 523 displayData.hasDeviceComposition = false; 524 for (auto& layer : displayDevice.getVisibleLayersSortedByZ()) { 525 auto hwcLayer = layer->getHwcLayer(displayId); 526 527 if (changedTypes.count(hwcLayer) != 0) { 528 // We pass false so we only update our state and don't call back 529 // into the HWC device 530 validateChange(layer->getCompositionType(displayId), 531 changedTypes[hwcLayer]); 532 layer->setCompositionType(displayId, changedTypes[hwcLayer], false); 533 } 534 535 switch (layer->getCompositionType(displayId)) { 536 case HWC2::Composition::Client: 537 displayData.hasClientComposition = true; 538 break; 539 case HWC2::Composition::Device: 540 case HWC2::Composition::SolidColor: 541 case HWC2::Composition::Cursor: 542 case HWC2::Composition::Sideband: 543 displayData.hasDeviceComposition = true; 544 break; 545 default: 546 break; 547 } 548 549 if (layerRequests.count(hwcLayer) != 0 && 550 layerRequests[hwcLayer] == 551 HWC2::LayerRequest::ClearClientTarget) { 552 layer->setClearClientTarget(displayId, true); 553 } else { 554 if (layerRequests.count(hwcLayer) != 0) { 555 ALOGE("prepare: Unknown layer request: %s", 556 to_string(layerRequests[hwcLayer]).c_str()); 557 } 558 layer->setClearClientTarget(displayId, false); 559 } 560 } 561 562 error = hwcDisplay->acceptChanges(); 563 if (error != HWC2::Error::None) { 564 ALOGE("prepare: acceptChanges failed: %s", to_string(error).c_str()); 565 return BAD_INDEX; 566 } 567 568 return NO_ERROR; 569} 570 571bool HWComposer::hasDeviceComposition(int32_t displayId) const { 572 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 573 // Displays without a corresponding HWC display are never composed by 574 // the device 575 return false; 576 } 577 if (!isValidDisplay(displayId)) { 578 ALOGE("hasDeviceComposition: Invalid display %d", displayId); 579 return false; 580 } 581 return mDisplayData[displayId].hasDeviceComposition; 582} 583 584bool HWComposer::hasClientComposition(int32_t displayId) const { 585 if (displayId == DisplayDevice::DISPLAY_ID_INVALID) { 586 // Displays without a corresponding HWC display are always composed by 587 // the client 588 return true; 589 } 590 if (!isValidDisplay(displayId)) { 591 ALOGE("hasClientComposition: Invalid display %d", displayId); 592 return true; 593 } 594 return mDisplayData[displayId].hasClientComposition; 595} 596 597sp<Fence> HWComposer::getRetireFence(int32_t displayId) const { 598 if (!isValidDisplay(displayId)) { 599 ALOGE("getRetireFence failed for invalid display %d", displayId); 600 return Fence::NO_FENCE; 601 } 602 return mDisplayData[displayId].lastRetireFence; 603} 604 605sp<Fence> HWComposer::getLayerReleaseFence(int32_t displayId, 606 const std::shared_ptr<HWC2::Layer>& layer) const { 607 if (!isValidDisplay(displayId)) { 608 ALOGE("getLayerReleaseFence: Invalid display"); 609 return Fence::NO_FENCE; 610 } 611 auto displayFences = mDisplayData[displayId].releaseFences; 612 if (displayFences.count(layer) == 0) { 613 ALOGV("getLayerReleaseFence: Release fence not found"); 614 return Fence::NO_FENCE; 615 } 616 return displayFences[layer]; 617} 618 619status_t HWComposer::commit(int32_t displayId) { 620 ATRACE_CALL(); 621 622 if (!isValidDisplay(displayId)) { 623 return BAD_INDEX; 624 } 625 626 auto& displayData = mDisplayData[displayId]; 627 auto& hwcDisplay = displayData.hwcDisplay; 628 auto error = hwcDisplay->present(&displayData.lastRetireFence); 629 if (error != HWC2::Error::None) { 630 ALOGE("commit: present failed for display %d: %s (%d)", displayId, 631 to_string(error).c_str(), static_cast<int32_t>(error)); 632 return UNKNOWN_ERROR; 633 } 634 635 std::unordered_map<std::shared_ptr<HWC2::Layer>, sp<Fence>> releaseFences; 636 error = hwcDisplay->getReleaseFences(&releaseFences); 637 if (error != HWC2::Error::None) { 638 ALOGE("commit: Failed to get release fences for display %d: %s (%d)", 639 displayId, to_string(error).c_str(), 640 static_cast<int32_t>(error)); 641 return UNKNOWN_ERROR; 642 } 643 644 displayData.releaseFences = std::move(releaseFences); 645 646 return NO_ERROR; 647} 648 649status_t HWComposer::setPowerMode(int32_t displayId, int32_t intMode) { 650 ALOGV("setPowerMode(%d, %d)", displayId, intMode); 651 if (!isValidDisplay(displayId)) { 652 ALOGE("setPowerMode: Bad display"); 653 return BAD_INDEX; 654 } 655 if (displayId >= VIRTUAL_DISPLAY_ID_BASE) { 656 ALOGE("setPowerMode: Virtual display %d passed in, returning", 657 displayId); 658 return BAD_INDEX; 659 } 660 661 auto mode = static_cast<HWC2::PowerMode>(intMode); 662 if (mode == HWC2::PowerMode::Off) { 663 setVsyncEnabled(displayId, HWC2::Vsync::Disable); 664 } 665 666 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 667 switch (mode) { 668 case HWC2::PowerMode::Off: 669 case HWC2::PowerMode::On: 670 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 671 { 672 auto error = hwcDisplay->setPowerMode(mode); 673 if (error != HWC2::Error::None) { 674 ALOGE("setPowerMode: Unable to set power mode %s for " 675 "display %d: %s (%d)", to_string(mode).c_str(), 676 displayId, to_string(error).c_str(), 677 static_cast<int32_t>(error)); 678 } 679 } 680 break; 681 case HWC2::PowerMode::Doze: 682 case HWC2::PowerMode::DozeSuspend: 683 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 684 { 685 bool supportsDoze = false; 686 auto error = hwcDisplay->supportsDoze(&supportsDoze); 687 if (error != HWC2::Error::None) { 688 ALOGE("setPowerMode: Unable to query doze support for " 689 "display %d: %s (%d)", displayId, 690 to_string(error).c_str(), 691 static_cast<int32_t>(error)); 692 } 693 if (!supportsDoze) { 694 mode = HWC2::PowerMode::On; 695 } 696 697 error = hwcDisplay->setPowerMode(mode); 698 if (error != HWC2::Error::None) { 699 ALOGE("setPowerMode: Unable to set power mode %s for " 700 "display %d: %s (%d)", to_string(mode).c_str(), 701 displayId, to_string(error).c_str(), 702 static_cast<int32_t>(error)); 703 } 704 } 705 break; 706 default: 707 ALOGV("setPowerMode: Not calling HWC"); 708 break; 709 } 710 711 return NO_ERROR; 712} 713 714status_t HWComposer::setActiveConfig(int32_t displayId, size_t configId) { 715 if (!isValidDisplay(displayId)) { 716 ALOGE("setActiveConfig: Display %d is not valid", displayId); 717 return BAD_INDEX; 718 } 719 720 auto& displayData = mDisplayData[displayId]; 721 if (displayData.configMap.count(configId) == 0) { 722 ALOGE("setActiveConfig: Invalid config %zd", configId); 723 return BAD_INDEX; 724 } 725 726 auto error = displayData.hwcDisplay->setActiveConfig( 727 displayData.configMap[configId]); 728 if (error != HWC2::Error::None) { 729 ALOGE("setActiveConfig: Failed to set config %zu on display %d: " 730 "%s (%d)", configId, displayId, to_string(error).c_str(), 731 static_cast<int32_t>(error)); 732 return UNKNOWN_ERROR; 733 } 734 735 return NO_ERROR; 736} 737 738status_t HWComposer::setColorTransform(int32_t displayId, 739 const mat4& transform) { 740 if (!isValidDisplay(displayId)) { 741 ALOGE("setColorTransform: Display %d is not valid", displayId); 742 return BAD_INDEX; 743 } 744 745 auto& displayData = mDisplayData[displayId]; 746 bool isIdentity = transform == mat4(); 747 auto error = displayData.hwcDisplay->setColorTransform(transform, 748 isIdentity ? HAL_COLOR_TRANSFORM_IDENTITY : 749 HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX); 750 if (error != HWC2::Error::None) { 751 ALOGE("setColorTransform: Failed to set transform on display %d: " 752 "%s (%d)", displayId, to_string(error).c_str(), 753 static_cast<int32_t>(error)); 754 return UNKNOWN_ERROR; 755 } 756 757 return NO_ERROR; 758} 759 760void HWComposer::disconnectDisplay(int displayId) { 761 LOG_ALWAYS_FATAL_IF(displayId < 0); 762 auto& displayData = mDisplayData[displayId]; 763 764 auto displayType = HWC2::DisplayType::Invalid; 765 auto error = displayData.hwcDisplay->getType(&displayType); 766 if (error != HWC2::Error::None) { 767 ALOGE("disconnectDisplay: Failed to determine type of display %d", 768 displayId); 769 return; 770 } 771 772 // If this was a virtual display, add its slot back for reuse by future 773 // virtual displays 774 if (displayType == HWC2::DisplayType::Virtual) { 775 mFreeDisplaySlots.insert(displayId); 776 ++mRemainingHwcVirtualDisplays; 777 } 778 779 auto hwcId = displayData.hwcDisplay->getId(); 780 mHwcDisplaySlots.erase(hwcId); 781 displayData.reset(); 782} 783 784status_t HWComposer::setOutputBuffer(int32_t displayId, 785 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 786 if (!isValidDisplay(displayId)) { 787 ALOGE("setOutputBuffer: Display %d is not valid", displayId); 788 return BAD_INDEX; 789 } 790 791 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 792 auto displayType = HWC2::DisplayType::Invalid; 793 auto error = hwcDisplay->getType(&displayType); 794 if (error != HWC2::Error::None) { 795 ALOGE("setOutputBuffer: Failed to determine type of display %d", 796 displayId); 797 return NAME_NOT_FOUND; 798 } 799 800 if (displayType != HWC2::DisplayType::Virtual) { 801 ALOGE("setOutputBuffer: Display %d is not virtual", displayId); 802 return INVALID_OPERATION; 803 } 804 805 error = hwcDisplay->setOutputBuffer(buffer, acquireFence); 806 if (error != HWC2::Error::None) { 807 ALOGE("setOutputBuffer: Failed to set buffer on display %d: %s (%d)", 808 displayId, to_string(error).c_str(), 809 static_cast<int32_t>(error)); 810 return UNKNOWN_ERROR; 811 } 812 813 return NO_ERROR; 814} 815 816void HWComposer::clearReleaseFences(int32_t displayId) { 817 if (!isValidDisplay(displayId)) { 818 ALOGE("clearReleaseFences: Display %d is not valid", displayId); 819 return; 820 } 821 mDisplayData[displayId].releaseFences.clear(); 822} 823 824std::unique_ptr<HdrCapabilities> HWComposer::getHdrCapabilities( 825 int32_t displayId) { 826 if (!isValidDisplay(displayId)) { 827 ALOGE("getHdrCapabilities: Display %d is not valid", displayId); 828 return nullptr; 829 } 830 831 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 832 std::unique_ptr<HdrCapabilities> capabilities; 833 auto error = hwcDisplay->getHdrCapabilities(&capabilities); 834 if (error != HWC2::Error::None) { 835 ALOGE("getOutputCapabilities: Failed to get capabilities on display %d:" 836 " %s (%d)", displayId, to_string(error).c_str(), 837 static_cast<int32_t>(error)); 838 return nullptr; 839 } 840 841 return capabilities; 842} 843 844// Converts a PixelFormat to a human-readable string. Max 11 chars. 845// (Could use a table of prefab String8 objects.) 846/* 847static String8 getFormatStr(PixelFormat format) { 848 switch (format) { 849 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888"); 850 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888"); 851 case PIXEL_FORMAT_RGB_888: return String8("RGB_888"); 852 case PIXEL_FORMAT_RGB_565: return String8("RGB_565"); 853 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888"); 854 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 855 return String8("ImplDef"); 856 default: 857 String8 result; 858 result.appendFormat("? %08x", format); 859 return result; 860 } 861} 862*/ 863 864void HWComposer::dump(String8& result) const { 865 // TODO: In order to provide a dump equivalent to HWC1, we need to shadow 866 // all the state going into the layers. This is probably better done in 867 // Layer itself, but it's going to take a bit of work to get there. 868 result.append(mHwcDevice->dump().c_str()); 869} 870 871// --------------------------------------------------------------------------- 872 873HWComposer::DisplayData::DisplayData() 874 : hasClientComposition(false), 875 hasDeviceComposition(false), 876 hwcDisplay(), 877 lastRetireFence(Fence::NO_FENCE), 878 outbufHandle(nullptr), 879 outbufAcquireFence(Fence::NO_FENCE), 880 vsyncEnabled(HWC2::Vsync::Disable) { 881 ALOGV("Created new DisplayData"); 882} 883 884HWComposer::DisplayData::~DisplayData() { 885} 886 887void HWComposer::DisplayData::reset() { 888 ALOGV("DisplayData reset"); 889 *this = DisplayData(); 890} 891 892// --------------------------------------------------------------------------- 893}; // namespace android 894