HWComposer.cpp revision 9f26a9c8be6f00f55cbc30b93adf4895c6a093aa
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 hw_module_t const* module; 113 114 if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) { 115 ALOGE("%s module not found, aborting", HWC_HARDWARE_MODULE_ID); 116 abort(); 117 } 118 119 hw_device_t* device = nullptr; 120 int error = module->methods->open(module, HWC_HARDWARE_COMPOSER, &device); 121 if (error != 0) { 122 ALOGE("Failed to open HWC device (%s), aborting", strerror(-error)); 123 abort(); 124 } 125 126 uint32_t majorVersion = (device->version >> 24) & 0xF; 127 if (majorVersion == 2) { 128 mHwcDevice = std::make_unique<HWC2::Device>( 129 reinterpret_cast<hwc2_device_t*>(device)); 130 } else { 131 mAdapter = std::make_unique<HWC2On1Adapter>( 132 reinterpret_cast<hwc_composer_device_1_t*>(device)); 133 uint8_t minorVersion = mAdapter->getHwc1MinorVersion(); 134 if (minorVersion < 1) { 135 ALOGE("Cannot adapt to HWC version %d.%d", 136 static_cast<int32_t>((minorVersion >> 8) & 0xF), 137 static_cast<int32_t>(minorVersion & 0xF)); 138 abort(); 139 } 140 mHwcDevice = std::make_unique<HWC2::Device>( 141 static_cast<hwc2_device_t*>(mAdapter.get())); 142 } 143 144 mRemainingHwcVirtualDisplays = mHwcDevice->getMaxVirtualDisplayCount(); 145} 146 147bool HWComposer::hasCapability(HWC2::Capability capability) const 148{ 149 return mHwcDevice->getCapabilities().count(capability) > 0; 150} 151 152bool HWComposer::isValidDisplay(int32_t displayId) const { 153 return static_cast<size_t>(displayId) < mDisplayData.size() && 154 mDisplayData[displayId].hwcDisplay; 155} 156 157void HWComposer::validateChange(HWC2::Composition from, HWC2::Composition to) { 158 bool valid = true; 159 switch (from) { 160 case HWC2::Composition::Client: 161 valid = false; 162 break; 163 case HWC2::Composition::Device: 164 case HWC2::Composition::SolidColor: 165 valid = (to == HWC2::Composition::Client); 166 break; 167 case HWC2::Composition::Cursor: 168 case HWC2::Composition::Sideband: 169 valid = (to == HWC2::Composition::Client || 170 to == HWC2::Composition::Device); 171 break; 172 default: 173 break; 174 } 175 176 if (!valid) { 177 ALOGE("Invalid layer type change: %s --> %s", to_string(from).c_str(), 178 to_string(to).c_str()); 179 } 180} 181 182void HWComposer::hotplug(const std::shared_ptr<HWC2::Display>& display, 183 HWC2::Connection connected) { 184 ALOGV("hotplug: %" PRIu64 ", %s", display->getId(), 185 to_string(connected).c_str()); 186 int32_t disp = 0; 187 if (!mDisplayData[0].hwcDisplay) { 188 ALOGE_IF(connected != HWC2::Connection::Connected, "Assumed primary" 189 " display would be connected"); 190 mDisplayData[0].hwcDisplay = display; 191 mHwcDisplaySlots[display->getId()] = 0; 192 disp = DisplayDevice::DISPLAY_PRIMARY; 193 } else { 194 // Disconnect is handled through HWComposer::disconnectDisplay via 195 // SurfaceFlinger's onHotplugReceived callback handling 196 if (connected == HWC2::Connection::Connected) { 197 mDisplayData[1].hwcDisplay = display; 198 mHwcDisplaySlots[display->getId()] = 1; 199 } 200 disp = DisplayDevice::DISPLAY_EXTERNAL; 201 } 202 mEventHandler->onHotplugReceived(disp, 203 connected == HWC2::Connection::Connected); 204} 205 206void HWComposer::invalidate(const std::shared_ptr<HWC2::Display>& /*display*/) { 207 mFlinger->repaintEverything(); 208} 209 210void HWComposer::vsync(const std::shared_ptr<HWC2::Display>& display, 211 int64_t timestamp) { 212 auto displayType = HWC2::DisplayType::Invalid; 213 auto error = display->getType(&displayType); 214 if (error != HWC2::Error::None) { 215 ALOGE("vsync: Failed to determine type of display %" PRIu64, 216 display->getId()); 217 return; 218 } 219 220 if (displayType == HWC2::DisplayType::Virtual) { 221 ALOGE("Virtual display %" PRIu64 " passed to vsync callback", 222 display->getId()); 223 return; 224 } 225 226 if (mHwcDisplaySlots.count(display->getId()) == 0) { 227 ALOGE("Unknown physical display %" PRIu64 " passed to vsync callback", 228 display->getId()); 229 return; 230 } 231 232 int32_t disp = mHwcDisplaySlots[display->getId()]; 233 { 234 Mutex::Autolock _l(mLock); 235 236 // There have been reports of HWCs that signal several vsync events 237 // with the same timestamp when turning the display off and on. This 238 // is a bug in the HWC implementation, but filter the extra events 239 // out here so they don't cause havoc downstream. 240 if (timestamp == mLastHwVSync[disp]) { 241 ALOGW("Ignoring duplicate VSYNC event from HWC (t=%" PRId64 ")", 242 timestamp); 243 return; 244 } 245 246 mLastHwVSync[disp] = timestamp; 247 } 248 249 char tag[16]; 250 snprintf(tag, sizeof(tag), "HW_VSYNC_%1u", disp); 251 ATRACE_INT(tag, ++mVSyncCounts[disp] & 1); 252 253 mEventHandler->onVSyncReceived(disp, timestamp); 254} 255 256status_t HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height, 257 android_pixel_format_t* format, int32_t *outId) { 258 if (mRemainingHwcVirtualDisplays == 0) { 259 ALOGE("allocateVirtualDisplay: No remaining virtual displays"); 260 return NO_MEMORY; 261 } 262 263 std::shared_ptr<HWC2::Display> display; 264 auto error = mHwcDevice->createVirtualDisplay(width, height, format, 265 &display); 266 if (error != HWC2::Error::None) { 267 ALOGE("allocateVirtualDisplay: Failed to create HWC virtual display"); 268 return NO_MEMORY; 269 } 270 271 size_t displaySlot = 0; 272 if (!mFreeDisplaySlots.empty()) { 273 displaySlot = *mFreeDisplaySlots.begin(); 274 mFreeDisplaySlots.erase(displaySlot); 275 } else if (mDisplayData.size() < INT32_MAX) { 276 // Don't bother allocating a slot larger than we can return 277 displaySlot = mDisplayData.size(); 278 mDisplayData.resize(displaySlot + 1); 279 } else { 280 ALOGE("allocateVirtualDisplay: Unable to allocate a display slot"); 281 return NO_MEMORY; 282 } 283 284 mDisplayData[displaySlot].hwcDisplay = display; 285 286 --mRemainingHwcVirtualDisplays; 287 *outId = static_cast<int32_t>(displaySlot); 288 289 return NO_ERROR; 290} 291 292std::shared_ptr<HWC2::Layer> HWComposer::createLayer(int32_t displayId) { 293 if (!isValidDisplay(displayId)) { 294 ALOGE("Failed to create layer on invalid display %d", displayId); 295 return nullptr; 296 } 297 auto display = mDisplayData[displayId].hwcDisplay; 298 std::shared_ptr<HWC2::Layer> layer; 299 auto error = display->createLayer(&layer); 300 if (error != HWC2::Error::None) { 301 ALOGE("Failed to create layer on display %d: %s (%d)", displayId, 302 to_string(error).c_str(), static_cast<int32_t>(error)); 303 return nullptr; 304 } 305 return layer; 306} 307 308nsecs_t HWComposer::getRefreshTimestamp(int32_t disp) const { 309 // this returns the last refresh timestamp. 310 // if the last one is not available, we estimate it based on 311 // the refresh period and whatever closest timestamp we have. 312 Mutex::Autolock _l(mLock); 313 nsecs_t now = systemTime(CLOCK_MONOTONIC); 314 auto vsyncPeriod = getActiveConfig(disp)->getVsyncPeriod(); 315 return now - ((now - mLastHwVSync[disp]) % vsyncPeriod); 316} 317 318bool HWComposer::isConnected(int32_t disp) const { 319 if (!isValidDisplay(disp)) { 320 ALOGE("isConnected: Attempted to access invalid display %d", disp); 321 return false; 322 } 323 return mDisplayData[disp].hwcDisplay->isConnected(); 324} 325 326std::vector<std::shared_ptr<const HWC2::Display::Config>> 327 HWComposer::getConfigs(int32_t displayId) const { 328 if (!isValidDisplay(displayId)) { 329 ALOGE("getConfigs: Attempted to access invalid display %d", displayId); 330 return {}; 331 } 332 auto& displayData = mDisplayData[displayId]; 333 auto configs = mDisplayData[displayId].hwcDisplay->getConfigs(); 334 if (displayData.configMap.empty()) { 335 for (size_t i = 0; i < configs.size(); ++i) { 336 displayData.configMap[i] = configs[i]; 337 } 338 } 339 return configs; 340} 341 342std::shared_ptr<const HWC2::Display::Config> 343 HWComposer::getActiveConfig(int32_t displayId) const { 344 if (!isValidDisplay(displayId)) { 345 ALOGE("getActiveConfigs: Attempted to access invalid display %d", 346 displayId); 347 return nullptr; 348 } 349 std::shared_ptr<const HWC2::Display::Config> config; 350 auto error = mDisplayData[displayId].hwcDisplay->getActiveConfig(&config); 351 if (error == HWC2::Error::BadConfig) { 352 ALOGV("getActiveConfig: No config active, returning null"); 353 return nullptr; 354 } else if (error != HWC2::Error::None) { 355 ALOGE("getActiveConfig failed for display %d: %s (%d)", displayId, 356 to_string(error).c_str(), static_cast<int32_t>(error)); 357 return nullptr; 358 } else if (!config) { 359 ALOGE("getActiveConfig returned an unknown config for display %d", 360 displayId); 361 return nullptr; 362 } 363 364 return config; 365} 366 367std::vector<int32_t> HWComposer::getColorModes(int32_t displayId) const { 368 std::vector<int32_t> modes; 369 370 if (!isValidDisplay(displayId)) { 371 ALOGE("getColorModes: Attempted to access invalid display %d", 372 displayId); 373 return modes; 374 } 375 const std::shared_ptr<HWC2::Display>& hwcDisplay = 376 mDisplayData[displayId].hwcDisplay; 377 378 auto error = hwcDisplay->getColorModes(&modes); 379 if (error != HWC2::Error::None) { 380 ALOGE("getColorModes failed for display %d: %s (%d)", displayId, 381 to_string(error).c_str(), static_cast<int32_t>(error)); 382 return std::vector<int32_t>(); 383 } 384 385 return modes; 386} 387 388void HWComposer::setVsyncEnabled(int32_t disp, HWC2::Vsync enabled) { 389 if (disp < 0 || disp >= HWC_DISPLAY_VIRTUAL) { 390 ALOGD("setVsyncEnabled: Ignoring for virtual display %d", disp); 391 return; 392 } 393 394 if (!isValidDisplay(disp)) { 395 ALOGE("setVsyncEnabled: Attempted to access invalid display %d", disp); 396 return; 397 } 398 399 // NOTE: we use our own internal lock here because we have to call 400 // into the HWC with the lock held, and we want to make sure 401 // that even if HWC blocks (which it shouldn't), it won't 402 // affect other threads. 403 Mutex::Autolock _l(mVsyncLock); 404 auto& displayData = mDisplayData[disp]; 405 if (enabled != displayData.vsyncEnabled) { 406 ATRACE_CALL(); 407 auto error = displayData.hwcDisplay->setVsyncEnabled(enabled); 408 if (error == HWC2::Error::None) { 409 displayData.vsyncEnabled = enabled; 410 411 char tag[16]; 412 snprintf(tag, sizeof(tag), "HW_VSYNC_ON_%1u", disp); 413 ATRACE_INT(tag, enabled == HWC2::Vsync::Enable ? 1 : 0); 414 } else { 415 ALOGE("setVsyncEnabled: Failed to set vsync to %s on %d/%" PRIu64 416 ": %s (%d)", to_string(enabled).c_str(), disp, 417 mDisplayData[disp].hwcDisplay->getId(), 418 to_string(error).c_str(), static_cast<int32_t>(error)); 419 } 420 } 421} 422 423status_t HWComposer::setClientTarget(int32_t displayId, 424 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target, 425 android_dataspace_t dataspace) { 426 if (!isValidDisplay(displayId)) { 427 return BAD_INDEX; 428 } 429 430 ALOGV("setClientTarget for display %d", displayId); 431 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 432 buffer_handle_t handle = nullptr; 433 if ((target != nullptr) && target->getNativeBuffer()) { 434 handle = target->getNativeBuffer()->handle; 435 } 436 auto error = hwcDisplay->setClientTarget(handle, acquireFence, dataspace); 437 if (error != HWC2::Error::None) { 438 ALOGE("Failed to set client target for display %d: %s (%d)", displayId, 439 to_string(error).c_str(), static_cast<int32_t>(error)); 440 return BAD_VALUE; 441 } 442 443 return NO_ERROR; 444} 445 446status_t HWComposer::prepare(DisplayDevice& displayDevice) { 447 ATRACE_CALL(); 448 449 Mutex::Autolock _l(mDisplayLock); 450 auto displayId = displayDevice.getHwcDisplayId(); 451 if (!isValidDisplay(displayId)) { 452 return BAD_INDEX; 453 } 454 455 auto& displayData = mDisplayData[displayId]; 456 auto& hwcDisplay = displayData.hwcDisplay; 457 if (!hwcDisplay->isConnected()) { 458 return NO_ERROR; 459 } 460 461 uint32_t numTypes = 0; 462 uint32_t numRequests = 0; 463 auto error = hwcDisplay->validate(&numTypes, &numRequests); 464 if (error != HWC2::Error::None && error != HWC2::Error::HasChanges) { 465 ALOGE("prepare: validate failed for display %d: %s (%d)", displayId, 466 to_string(error).c_str(), static_cast<int32_t>(error)); 467 return BAD_INDEX; 468 } 469 470 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::Composition> 471 changedTypes; 472 changedTypes.reserve(numTypes); 473 error = hwcDisplay->getChangedCompositionTypes(&changedTypes); 474 if (error != HWC2::Error::None) { 475 ALOGE("prepare: getChangedCompositionTypes failed on display %d: " 476 "%s (%d)", displayId, to_string(error).c_str(), 477 static_cast<int32_t>(error)); 478 return BAD_INDEX; 479 } 480 481 482 displayData.displayRequests = static_cast<HWC2::DisplayRequest>(0); 483 std::unordered_map<std::shared_ptr<HWC2::Layer>, HWC2::LayerRequest> 484 layerRequests; 485 layerRequests.reserve(numRequests); 486 error = hwcDisplay->getRequests(&displayData.displayRequests, 487 &layerRequests); 488 if (error != HWC2::Error::None) { 489 ALOGE("prepare: getRequests failed on display %d: %s (%d)", displayId, 490 to_string(error).c_str(), static_cast<int32_t>(error)); 491 return BAD_INDEX; 492 } 493 494 displayData.hasClientComposition = false; 495 displayData.hasDeviceComposition = false; 496 for (auto& layer : displayDevice.getVisibleLayersSortedByZ()) { 497 auto hwcLayer = layer->getHwcLayer(displayId); 498 499 if (changedTypes.count(hwcLayer) != 0) { 500 // We pass false so we only update our state and don't call back 501 // into the HWC device 502 validateChange(layer->getCompositionType(displayId), 503 changedTypes[hwcLayer]); 504 layer->setCompositionType(displayId, changedTypes[hwcLayer], false); 505 } 506 507 switch (layer->getCompositionType(displayId)) { 508 case HWC2::Composition::Client: 509 displayData.hasClientComposition = true; 510 break; 511 case HWC2::Composition::Device: 512 case HWC2::Composition::SolidColor: 513 case HWC2::Composition::Cursor: 514 case HWC2::Composition::Sideband: 515 displayData.hasDeviceComposition = true; 516 break; 517 default: 518 break; 519 } 520 521 if (layerRequests.count(hwcLayer) != 0 && 522 layerRequests[hwcLayer] == 523 HWC2::LayerRequest::ClearClientTarget) { 524 layer->setClearClientTarget(displayId, true); 525 } else { 526 if (layerRequests.count(hwcLayer) != 0) { 527 ALOGE("prepare: Unknown layer request: %s", 528 to_string(layerRequests[hwcLayer]).c_str()); 529 } 530 layer->setClearClientTarget(displayId, false); 531 } 532 } 533 534 error = hwcDisplay->acceptChanges(); 535 if (error != HWC2::Error::None) { 536 ALOGE("prepare: acceptChanges failed: %s", to_string(error).c_str()); 537 return BAD_INDEX; 538 } 539 540 return NO_ERROR; 541} 542 543bool HWComposer::hasDeviceComposition(int32_t displayId) const { 544 if (!isValidDisplay(displayId)) { 545 ALOGE("hasDeviceComposition: Invalid display %d", displayId); 546 return false; 547 } 548 return mDisplayData[displayId].hasDeviceComposition; 549} 550 551bool HWComposer::hasClientComposition(int32_t displayId) const { 552 if (!isValidDisplay(displayId)) { 553 ALOGE("hasClientComposition: Invalid display %d", displayId); 554 return true; 555 } 556 return mDisplayData[displayId].hasClientComposition; 557} 558 559sp<Fence> HWComposer::getRetireFence(int32_t displayId) const { 560 if (!isValidDisplay(displayId)) { 561 ALOGE("getRetireFence failed for invalid display %d", displayId); 562 return Fence::NO_FENCE; 563 } 564 return mDisplayData[displayId].lastRetireFence; 565} 566 567sp<Fence> HWComposer::getLayerReleaseFence(int32_t displayId, 568 const std::shared_ptr<HWC2::Layer>& layer) const { 569 if (!isValidDisplay(displayId)) { 570 ALOGE("getLayerReleaseFence: Invalid display"); 571 return Fence::NO_FENCE; 572 } 573 auto displayFences = mDisplayData[displayId].releaseFences; 574 if (displayFences.count(layer) == 0) { 575 ALOGV("getLayerReleaseFence: Release fence not found"); 576 return Fence::NO_FENCE; 577 } 578 return displayFences[layer]; 579} 580 581status_t HWComposer::commit(int32_t displayId) { 582 ATRACE_CALL(); 583 584 if (!isValidDisplay(displayId)) { 585 return BAD_INDEX; 586 } 587 588 auto& displayData = mDisplayData[displayId]; 589 auto& hwcDisplay = displayData.hwcDisplay; 590 auto error = hwcDisplay->present(&displayData.lastRetireFence); 591 if (error != HWC2::Error::None) { 592 ALOGE("commit: present failed for display %d: %s (%d)", displayId, 593 to_string(error).c_str(), static_cast<int32_t>(error)); 594 return UNKNOWN_ERROR; 595 } 596 597 std::unordered_map<std::shared_ptr<HWC2::Layer>, sp<Fence>> releaseFences; 598 error = hwcDisplay->getReleaseFences(&releaseFences); 599 if (error != HWC2::Error::None) { 600 ALOGE("commit: Failed to get release fences for display %d: %s (%d)", 601 displayId, to_string(error).c_str(), 602 static_cast<int32_t>(error)); 603 return UNKNOWN_ERROR; 604 } 605 606 displayData.releaseFences = std::move(releaseFences); 607 608 return NO_ERROR; 609} 610 611status_t HWComposer::setPowerMode(int32_t displayId, int32_t intMode) { 612 ALOGV("setPowerMode(%d, %d)", displayId, intMode); 613 if (!isValidDisplay(displayId)) { 614 ALOGE("setPowerMode: Bad display"); 615 return BAD_INDEX; 616 } 617 if (displayId >= VIRTUAL_DISPLAY_ID_BASE) { 618 ALOGE("setPowerMode: Virtual display %d passed in, returning", 619 displayId); 620 return BAD_INDEX; 621 } 622 623 auto mode = static_cast<HWC2::PowerMode>(intMode); 624 if (mode == HWC2::PowerMode::Off) { 625 setVsyncEnabled(displayId, HWC2::Vsync::Disable); 626 } 627 628 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 629 switch (mode) { 630 case HWC2::PowerMode::Off: 631 case HWC2::PowerMode::On: 632 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 633 { 634 auto error = hwcDisplay->setPowerMode(mode); 635 if (error != HWC2::Error::None) { 636 ALOGE("setPowerMode: Unable to set power mode %s for " 637 "display %d: %s (%d)", to_string(mode).c_str(), 638 displayId, to_string(error).c_str(), 639 static_cast<int32_t>(error)); 640 } 641 } 642 break; 643 case HWC2::PowerMode::Doze: 644 case HWC2::PowerMode::DozeSuspend: 645 ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); 646 { 647 bool supportsDoze = false; 648 auto error = hwcDisplay->supportsDoze(&supportsDoze); 649 if (error != HWC2::Error::None) { 650 ALOGE("setPowerMode: Unable to query doze support for " 651 "display %d: %s (%d)", displayId, 652 to_string(error).c_str(), 653 static_cast<int32_t>(error)); 654 } 655 if (!supportsDoze) { 656 mode = HWC2::PowerMode::On; 657 } 658 659 error = hwcDisplay->setPowerMode(mode); 660 if (error != HWC2::Error::None) { 661 ALOGE("setPowerMode: Unable to set power mode %s for " 662 "display %d: %s (%d)", to_string(mode).c_str(), 663 displayId, to_string(error).c_str(), 664 static_cast<int32_t>(error)); 665 } 666 } 667 break; 668 default: 669 ALOGV("setPowerMode: Not calling HWC"); 670 break; 671 } 672 673 return NO_ERROR; 674} 675 676status_t HWComposer::setActiveConfig(int32_t displayId, size_t configId) { 677 if (!isValidDisplay(displayId)) { 678 ALOGE("setActiveConfig: Display %d is not valid", displayId); 679 return BAD_INDEX; 680 } 681 682 auto& displayData = mDisplayData[displayId]; 683 if (displayData.configMap.count(configId) == 0) { 684 ALOGE("setActiveConfig: Invalid config %zd", configId); 685 return BAD_INDEX; 686 } 687 688 auto error = displayData.hwcDisplay->setActiveConfig( 689 displayData.configMap[configId]); 690 if (error != HWC2::Error::None) { 691 ALOGE("setActiveConfig: Failed to set config %zu on display %d: " 692 "%s (%d)", configId, displayId, to_string(error).c_str(), 693 static_cast<int32_t>(error)); 694 return UNKNOWN_ERROR; 695 } 696 697 return NO_ERROR; 698} 699 700status_t HWComposer::setColorTransform(int32_t displayId, 701 const mat4& transform) { 702 if (!isValidDisplay(displayId)) { 703 ALOGE("setColorTransform: Display %d is not valid", displayId); 704 return BAD_INDEX; 705 } 706 707 auto& displayData = mDisplayData[displayId]; 708 bool isIdentity = transform == mat4(); 709 auto error = displayData.hwcDisplay->setColorTransform(transform, 710 isIdentity ? HAL_COLOR_TRANSFORM_IDENTITY : 711 HAL_COLOR_TRANSFORM_ARBITRARY_MATRIX); 712 if (error != HWC2::Error::None) { 713 ALOGE("setColorTransform: Failed to set transform on display %d: " 714 "%s (%d)", displayId, to_string(error).c_str(), 715 static_cast<int32_t>(error)); 716 return UNKNOWN_ERROR; 717 } 718 719 return NO_ERROR; 720} 721 722void HWComposer::disconnectDisplay(int displayId) { 723 LOG_ALWAYS_FATAL_IF(displayId < 0); 724 auto& displayData = mDisplayData[displayId]; 725 726 auto displayType = HWC2::DisplayType::Invalid; 727 auto error = displayData.hwcDisplay->getType(&displayType); 728 if (error != HWC2::Error::None) { 729 ALOGE("disconnectDisplay: Failed to determine type of display %d", 730 displayId); 731 return; 732 } 733 734 // If this was a virtual display, add its slot back for reuse by future 735 // virtual displays 736 if (displayType == HWC2::DisplayType::Virtual) { 737 mFreeDisplaySlots.insert(displayId); 738 ++mRemainingHwcVirtualDisplays; 739 } 740 741 auto hwcId = displayData.hwcDisplay->getId(); 742 mHwcDisplaySlots.erase(hwcId); 743 displayData.reset(); 744} 745 746status_t HWComposer::setOutputBuffer(int32_t displayId, 747 const sp<Fence>& acquireFence, const sp<GraphicBuffer>& buffer) { 748 if (!isValidDisplay(displayId)) { 749 ALOGE("setOutputBuffer: Display %d is not valid", displayId); 750 return BAD_INDEX; 751 } 752 753 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 754 auto displayType = HWC2::DisplayType::Invalid; 755 auto error = hwcDisplay->getType(&displayType); 756 if (error != HWC2::Error::None) { 757 ALOGE("setOutputBuffer: Failed to determine type of display %d", 758 displayId); 759 return NAME_NOT_FOUND; 760 } 761 762 if (displayType != HWC2::DisplayType::Virtual) { 763 ALOGE("setOutputBuffer: Display %d is not virtual", displayId); 764 return INVALID_OPERATION; 765 } 766 767 error = hwcDisplay->setOutputBuffer(buffer, acquireFence); 768 if (error != HWC2::Error::None) { 769 ALOGE("setOutputBuffer: Failed to set buffer on display %d: %s (%d)", 770 displayId, to_string(error).c_str(), 771 static_cast<int32_t>(error)); 772 return UNKNOWN_ERROR; 773 } 774 775 return NO_ERROR; 776} 777 778void HWComposer::clearReleaseFences(int32_t displayId) { 779 if (!isValidDisplay(displayId)) { 780 ALOGE("clearReleaseFences: Display %d is not valid", displayId); 781 return; 782 } 783 mDisplayData[displayId].releaseFences.clear(); 784} 785 786std::unique_ptr<HdrCapabilities> HWComposer::getHdrCapabilities( 787 int32_t displayId) { 788 if (!isValidDisplay(displayId)) { 789 ALOGE("getHdrCapabilities: Display %d is not valid", displayId); 790 return nullptr; 791 } 792 793 auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; 794 std::unique_ptr<HdrCapabilities> capabilities; 795 auto error = hwcDisplay->getHdrCapabilities(&capabilities); 796 if (error != HWC2::Error::None) { 797 ALOGE("getOutputCapabilities: Failed to get capabilities on display %d:" 798 " %s (%d)", displayId, to_string(error).c_str(), 799 static_cast<int32_t>(error)); 800 return nullptr; 801 } 802 803 return capabilities; 804} 805 806// Converts a PixelFormat to a human-readable string. Max 11 chars. 807// (Could use a table of prefab String8 objects.) 808/* 809static String8 getFormatStr(PixelFormat format) { 810 switch (format) { 811 case PIXEL_FORMAT_RGBA_8888: return String8("RGBA_8888"); 812 case PIXEL_FORMAT_RGBX_8888: return String8("RGBx_8888"); 813 case PIXEL_FORMAT_RGB_888: return String8("RGB_888"); 814 case PIXEL_FORMAT_RGB_565: return String8("RGB_565"); 815 case PIXEL_FORMAT_BGRA_8888: return String8("BGRA_8888"); 816 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: 817 return String8("ImplDef"); 818 default: 819 String8 result; 820 result.appendFormat("? %08x", format); 821 return result; 822 } 823} 824*/ 825 826void HWComposer::dump(String8& result) const { 827 // TODO: In order to provide a dump equivalent to HWC1, we need to shadow 828 // all the state going into the layers. This is probably better done in 829 // Layer itself, but it's going to take a bit of work to get there. 830 result.append(mHwcDevice->dump().c_str()); 831} 832 833// --------------------------------------------------------------------------- 834 835HWComposer::DisplayData::DisplayData() 836 : hasClientComposition(false), 837 hasDeviceComposition(false), 838 hwcDisplay(), 839 lastRetireFence(Fence::NO_FENCE), 840 outbufHandle(nullptr), 841 outbufAcquireFence(Fence::NO_FENCE), 842 vsyncEnabled(HWC2::Vsync::Disable) { 843 ALOGV("Created new DisplayData"); 844} 845 846HWComposer::DisplayData::~DisplayData() { 847} 848 849void HWComposer::DisplayData::reset() { 850 ALOGV("DisplayData reset"); 851 *this = DisplayData(); 852} 853 854// --------------------------------------------------------------------------- 855}; // namespace android 856