| /* | 
 |  * Copyright (C) 2010 The Android Open Source Project | 
 |  * | 
 |  * Licensed under the Apache License, Version 2.0 (the "License"); | 
 |  * you may not use this file except in compliance with the License. | 
 |  * You may obtain a copy of the License at | 
 |  * | 
 |  *      http://www.apache.org/licenses/LICENSE-2.0 | 
 |  * | 
 |  * Unless required by applicable law or agreed to in writing, software | 
 |  * distributed under the License is distributed on an "AS IS" BASIS, | 
 |  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 |  * See the License for the specific language governing permissions and | 
 |  * limitations under the License. | 
 |  */ | 
 |  | 
 | // TODO(b/129481165): remove the #pragma below and fix conversion issues | 
 | #pragma clang diagnostic push | 
 | #pragma clang diagnostic ignored "-Wconversion" | 
 |  | 
 | // #define LOG_NDEBUG 0 | 
 |  | 
 | #undef LOG_TAG | 
 | #define LOG_TAG "HWComposer" | 
 | #define ATRACE_TAG ATRACE_TAG_GRAPHICS | 
 |  | 
 | #include "HWComposer.h" | 
 |  | 
 | #include <android-base/properties.h> | 
 | #include <compositionengine/Output.h> | 
 | #include <compositionengine/OutputLayer.h> | 
 | #include <compositionengine/impl/OutputLayerCompositionState.h> | 
 | #include <log/log.h> | 
 | #include <ui/DebugUtils.h> | 
 | #include <ui/GraphicBuffer.h> | 
 | #include <utils/Errors.h> | 
 | #include <utils/Trace.h> | 
 |  | 
 | #include "../Layer.h" // needed only for debugging | 
 | #include "../SurfaceFlingerProperties.h" | 
 | #include "ComposerHal.h" | 
 | #include "HWC2.h" | 
 |  | 
 | #define LOG_HWC_DISPLAY_ERROR(hwcDisplayId, msg) \ | 
 |     ALOGE("%s failed for HWC display %" PRIu64 ": %s", __FUNCTION__, hwcDisplayId, msg) | 
 |  | 
 | #define LOG_DISPLAY_ERROR(displayId, msg) \ | 
 |     ALOGE("%s failed for display %s: %s", __FUNCTION__, to_string(displayId).c_str(), msg) | 
 |  | 
 | #define LOG_HWC_ERROR(what, error, displayId)                          \ | 
 |     ALOGE("%s: %s failed for display %s: %s (%d)", __FUNCTION__, what, \ | 
 |           to_string(displayId).c_str(), to_string(error).c_str(), static_cast<int32_t>(error)) | 
 |  | 
 | #define RETURN_IF_INVALID_DISPLAY(displayId, ...)            \ | 
 |     do {                                                     \ | 
 |         if (mDisplayData.count(displayId) == 0) {            \ | 
 |             LOG_DISPLAY_ERROR(displayId, "Invalid display"); \ | 
 |             return __VA_ARGS__;                              \ | 
 |         }                                                    \ | 
 |     } while (false) | 
 |  | 
 | #define RETURN_IF_HWC_ERROR_FOR(what, error, displayId, ...) \ | 
 |     do {                                                     \ | 
 |         if (error != hal::Error::NONE) {                     \ | 
 |             LOG_HWC_ERROR(what, error, displayId);           \ | 
 |             return __VA_ARGS__;                              \ | 
 |         }                                                    \ | 
 |     } while (false) | 
 |  | 
 | #define RETURN_IF_HWC_ERROR(error, displayId, ...) \ | 
 |     RETURN_IF_HWC_ERROR_FOR(__FUNCTION__, error, displayId, __VA_ARGS__) | 
 |  | 
 | using aidl::android::hardware::graphics::composer3::Capability; | 
 | using aidl::android::hardware::graphics::composer3::DisplayCapability; | 
 | namespace hal = android::hardware::graphics::composer::hal; | 
 |  | 
 | namespace android { | 
 |  | 
 | HWComposer::~HWComposer() = default; | 
 |  | 
 | namespace impl { | 
 |  | 
 | HWComposer::HWComposer(std::unique_ptr<Hwc2::Composer> composer) | 
 |       : mComposer(std::move(composer)), | 
 |         mMaxVirtualDisplayDimension(static_cast<size_t>(sysprop::max_virtual_display_dimension(0))), | 
 |         mUpdateDeviceProductInfoOnHotplugReconnect( | 
 |                 sysprop::update_device_product_info_on_hotplug_reconnect(false)) {} | 
 |  | 
 | HWComposer::HWComposer(const std::string& composerServiceName) | 
 |       : HWComposer(Hwc2::Composer::create(composerServiceName)) {} | 
 |  | 
 | HWComposer::~HWComposer() { | 
 |     mDisplayData.clear(); | 
 | } | 
 |  | 
 | void HWComposer::setCallback(HWC2::ComposerCallback& callback) { | 
 |     loadCapabilities(); | 
 |     loadLayerMetadataSupport(); | 
 |  | 
 |     if (mRegisteredCallback) { | 
 |         ALOGW("Callback already registered. Ignored extra registration attempt."); | 
 |         return; | 
 |     } | 
 |     mRegisteredCallback = true; | 
 |  | 
 |     mComposer->registerCallback(callback); | 
 | } | 
 |  | 
 | bool HWComposer::getDisplayIdentificationData(hal::HWDisplayId hwcDisplayId, uint8_t* outPort, | 
 |                                               DisplayIdentificationData* outData) const { | 
 |     const auto error = static_cast<hal::Error>( | 
 |             mComposer->getDisplayIdentificationData(hwcDisplayId, outPort, outData)); | 
 |     if (error != hal::Error::NONE) { | 
 |         if (error != hal::Error::UNSUPPORTED) { | 
 |             LOG_HWC_DISPLAY_ERROR(hwcDisplayId, to_string(error).c_str()); | 
 |         } | 
 |         return false; | 
 |     } | 
 |     return true; | 
 | } | 
 |  | 
 | bool HWComposer::hasCapability(Capability capability) const { | 
 |     return mCapabilities.count(capability) > 0; | 
 | } | 
 |  | 
 | bool HWComposer::hasDisplayCapability(HalDisplayId displayId, DisplayCapability capability) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, false); | 
 |     return mDisplayData.at(displayId).hwcDisplay->hasCapability(capability); | 
 | } | 
 |  | 
 | std::optional<DisplayIdentificationInfo> HWComposer::onHotplug(hal::HWDisplayId hwcDisplayId, | 
 |                                                                hal::Connection connection) { | 
 |     switch (connection) { | 
 |         case hal::Connection::CONNECTED: | 
 |             return onHotplugConnect(hwcDisplayId); | 
 |         case hal::Connection::DISCONNECTED: | 
 |             return onHotplugDisconnect(hwcDisplayId); | 
 |         case hal::Connection::INVALID: | 
 |             return {}; | 
 |     } | 
 | } | 
 |  | 
 | bool HWComposer::updatesDeviceProductInfoOnHotplugReconnect() const { | 
 |     return mUpdateDeviceProductInfoOnHotplugReconnect; | 
 | } | 
 |  | 
 | bool HWComposer::onVsync(hal::HWDisplayId hwcDisplayId, int64_t timestamp) { | 
 |     const auto displayId = toPhysicalDisplayId(hwcDisplayId); | 
 |     if (!displayId) { | 
 |         LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid HWC display"); | 
 |         return false; | 
 |     } | 
 |  | 
 |     RETURN_IF_INVALID_DISPLAY(*displayId, false); | 
 |  | 
 |     auto& displayData = mDisplayData[*displayId]; | 
 |  | 
 |     { | 
 |         // There have been reports of HWCs that signal several vsync events | 
 |         // with the same timestamp when turning the display off and on. This | 
 |         // is a bug in the HWC implementation, but filter the extra events | 
 |         // out here so they don't cause havoc downstream. | 
 |         if (timestamp == displayData.lastHwVsync) { | 
 |             ALOGW("Ignoring duplicate VSYNC event from HWC for display %s (t=%" PRId64 ")", | 
 |                   to_string(*displayId).c_str(), timestamp); | 
 |             return false; | 
 |         } | 
 |  | 
 |         displayData.lastHwVsync = timestamp; | 
 |     } | 
 |  | 
 |     const auto tag = "HW_VSYNC_" + to_string(*displayId); | 
 |     ATRACE_INT(tag.c_str(), displayData.vsyncTraceToggle); | 
 |     displayData.vsyncTraceToggle = !displayData.vsyncTraceToggle; | 
 |  | 
 |     return true; | 
 | } | 
 |  | 
 | size_t HWComposer::getMaxVirtualDisplayCount() const { | 
 |     return mComposer->getMaxVirtualDisplayCount(); | 
 | } | 
 |  | 
 | size_t HWComposer::getMaxVirtualDisplayDimension() const { | 
 |     return mMaxVirtualDisplayDimension; | 
 | } | 
 |  | 
 | bool HWComposer::allocateVirtualDisplay(HalVirtualDisplayId displayId, ui::Size resolution, | 
 |                                         ui::PixelFormat* format) { | 
 |     if (!resolution.isValid()) { | 
 |         ALOGE("%s: Invalid resolution %dx%d", __func__, resolution.width, resolution.height); | 
 |         return false; | 
 |     } | 
 |  | 
 |     const uint32_t width = static_cast<uint32_t>(resolution.width); | 
 |     const uint32_t height = static_cast<uint32_t>(resolution.height); | 
 |  | 
 |     if (mMaxVirtualDisplayDimension > 0 && | 
 |         (width > mMaxVirtualDisplayDimension || height > mMaxVirtualDisplayDimension)) { | 
 |         ALOGE("%s: Resolution %ux%u exceeds maximum dimension %zu", __func__, width, height, | 
 |               mMaxVirtualDisplayDimension); | 
 |         return false; | 
 |     } | 
 |  | 
 |     hal::HWDisplayId hwcDisplayId; | 
 |     const auto error = static_cast<hal::Error>( | 
 |             mComposer->createVirtualDisplay(width, height, format, &hwcDisplayId)); | 
 |     RETURN_IF_HWC_ERROR_FOR("createVirtualDisplay", error, displayId, false); | 
 |  | 
 |     auto display = std::make_unique<HWC2::impl::Display>(*mComposer.get(), mCapabilities, | 
 |                                                          hwcDisplayId, hal::DisplayType::VIRTUAL); | 
 |     display->setConnected(true); | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     displayData.hwcDisplay = std::move(display); | 
 |     return true; | 
 | } | 
 |  | 
 | void HWComposer::allocatePhysicalDisplay(hal::HWDisplayId hwcDisplayId, | 
 |                                          PhysicalDisplayId displayId) { | 
 |     mPhysicalDisplayIdMap[hwcDisplayId] = displayId; | 
 |  | 
 |     if (!mPrimaryHwcDisplayId) { | 
 |         mPrimaryHwcDisplayId = hwcDisplayId; | 
 |     } | 
 |  | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     auto newDisplay = | 
 |             std::make_unique<HWC2::impl::Display>(*mComposer.get(), mCapabilities, hwcDisplayId, | 
 |                                                   hal::DisplayType::PHYSICAL); | 
 |     newDisplay->setConnected(true); | 
 |     displayData.hwcDisplay = std::move(newDisplay); | 
 | } | 
 |  | 
 | int32_t HWComposer::getAttribute(hal::HWDisplayId hwcDisplayId, hal::HWConfigId configId, | 
 |                                  hal::Attribute attribute) const { | 
 |     int32_t value = 0; | 
 |     auto error = static_cast<hal::Error>( | 
 |             mComposer->getDisplayAttribute(hwcDisplayId, configId, attribute, &value)); | 
 |  | 
 |     RETURN_IF_HWC_ERROR_FOR("getDisplayAttribute", error, *toPhysicalDisplayId(hwcDisplayId), -1); | 
 |     return value; | 
 | } | 
 |  | 
 | std::shared_ptr<HWC2::Layer> HWComposer::createLayer(HalDisplayId displayId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, nullptr); | 
 |  | 
 |     auto expected = mDisplayData[displayId].hwcDisplay->createLayer(); | 
 |     if (!expected.has_value()) { | 
 |         auto error = std::move(expected).error(); | 
 |         RETURN_IF_HWC_ERROR(error, displayId, nullptr); | 
 |     } | 
 |     return std::move(expected).value(); | 
 | } | 
 |  | 
 | bool HWComposer::isConnected(PhysicalDisplayId displayId) const { | 
 |     if (mDisplayData.count(displayId)) { | 
 |         return mDisplayData.at(displayId).hwcDisplay->isConnected(); | 
 |     } | 
 |  | 
 |     return false; | 
 | } | 
 |  | 
 | std::vector<HWComposer::HWCDisplayMode> HWComposer::getModes(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, {}); | 
 |  | 
 |     const auto hwcDisplayId = mDisplayData.at(displayId).hwcDisplay->getId(); | 
 |     std::vector<hal::HWConfigId> configIds; | 
 |     auto error = static_cast<hal::Error>(mComposer->getDisplayConfigs(hwcDisplayId, &configIds)); | 
 |     RETURN_IF_HWC_ERROR_FOR("getDisplayConfigs", error, *toPhysicalDisplayId(hwcDisplayId), {}); | 
 |  | 
 |     std::vector<HWCDisplayMode> modes; | 
 |     modes.reserve(configIds.size()); | 
 |     for (auto configId : configIds) { | 
 |         modes.push_back(HWCDisplayMode{ | 
 |                 .hwcId = configId, | 
 |                 .width = getAttribute(hwcDisplayId, configId, hal::Attribute::WIDTH), | 
 |                 .height = getAttribute(hwcDisplayId, configId, hal::Attribute::HEIGHT), | 
 |                 .vsyncPeriod = getAttribute(hwcDisplayId, configId, hal::Attribute::VSYNC_PERIOD), | 
 |                 .dpiX = getAttribute(hwcDisplayId, configId, hal::Attribute::DPI_X), | 
 |                 .dpiY = getAttribute(hwcDisplayId, configId, hal::Attribute::DPI_Y), | 
 |                 .configGroup = getAttribute(hwcDisplayId, configId, hal::Attribute::CONFIG_GROUP), | 
 |         }); | 
 |     } | 
 |  | 
 |     return modes; | 
 | } | 
 |  | 
 | std::optional<hal::HWConfigId> HWComposer::getActiveMode(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, std::nullopt); | 
 |  | 
 |     const auto hwcId = *fromPhysicalDisplayId(displayId); | 
 |     ALOGV("[%" PRIu64 "] getActiveMode", hwcId); | 
 |     hal::HWConfigId configId; | 
 |     auto error = static_cast<hal::Error>(mComposer->getActiveConfig(hwcId, &configId)); | 
 |  | 
 |     if (error == hal::Error::BAD_CONFIG) { | 
 |         LOG_DISPLAY_ERROR(displayId, "No active mode"); | 
 |         return std::nullopt; | 
 |     } | 
 |  | 
 |     return configId; | 
 | } | 
 |  | 
 | // Composer 2.4 | 
 |  | 
 | ui::DisplayConnectionType HWComposer::getDisplayConnectionType(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, ui::DisplayConnectionType::Internal); | 
 |     const auto& hwcDisplay = mDisplayData.at(displayId).hwcDisplay; | 
 |  | 
 |     ui::DisplayConnectionType type; | 
 |     const auto error = hwcDisplay->getConnectionType(&type); | 
 |  | 
 |     const auto FALLBACK_TYPE = hwcDisplay->getId() == mPrimaryHwcDisplayId | 
 |             ? ui::DisplayConnectionType::Internal | 
 |             : ui::DisplayConnectionType::External; | 
 |  | 
 |     RETURN_IF_HWC_ERROR(error, displayId, FALLBACK_TYPE); | 
 |     return type; | 
 | } | 
 |  | 
 | bool HWComposer::isVsyncPeriodSwitchSupported(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, false); | 
 |     return mDisplayData.at(displayId).hwcDisplay->isVsyncPeriodSwitchSupported(); | 
 | } | 
 |  | 
 | status_t HWComposer::getDisplayVsyncPeriod(PhysicalDisplayId displayId, | 
 |                                            nsecs_t* outVsyncPeriod) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, 0); | 
 |  | 
 |     if (!isVsyncPeriodSwitchSupported(displayId)) { | 
 |         return INVALID_OPERATION; | 
 |     } | 
 |     const auto hwcId = *fromPhysicalDisplayId(displayId); | 
 |     Hwc2::VsyncPeriodNanos vsyncPeriodNanos = 0; | 
 |     auto error = | 
 |             static_cast<hal::Error>(mComposer->getDisplayVsyncPeriod(hwcId, &vsyncPeriodNanos)); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, 0); | 
 |     *outVsyncPeriod = static_cast<nsecs_t>(vsyncPeriodNanos); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | std::vector<ui::ColorMode> HWComposer::getColorModes(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, {}); | 
 |  | 
 |     std::vector<ui::ColorMode> modes; | 
 |     auto error = mDisplayData.at(displayId).hwcDisplay->getColorModes(&modes); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, {}); | 
 |     return modes; | 
 | } | 
 |  | 
 | status_t HWComposer::setActiveColorMode(PhysicalDisplayId displayId, ui::ColorMode mode, | 
 |                                         ui::RenderIntent renderIntent) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     auto error = displayData.hwcDisplay->setColorMode(mode, renderIntent); | 
 |     RETURN_IF_HWC_ERROR_FOR(("setColorMode(" + decodeColorMode(mode) + ", " + | 
 |                              decodeRenderIntent(renderIntent) + ")") | 
 |                                     .c_str(), | 
 |                             error, displayId, UNKNOWN_ERROR); | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | void HWComposer::setVsyncEnabled(PhysicalDisplayId displayId, hal::Vsync enabled) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId); | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |  | 
 |     // NOTE: we use our own internal lock here because we have to call | 
 |     // into the HWC with the lock held, and we want to make sure | 
 |     // that even if HWC blocks (which it shouldn't), it won't | 
 |     // affect other threads. | 
 |     std::lock_guard lock(displayData.vsyncEnabledLock); | 
 |     if (enabled == displayData.vsyncEnabled) { | 
 |         return; | 
 |     } | 
 |  | 
 |     ATRACE_CALL(); | 
 |     auto error = displayData.hwcDisplay->setVsyncEnabled(enabled); | 
 |     RETURN_IF_HWC_ERROR(error, displayId); | 
 |  | 
 |     displayData.vsyncEnabled = enabled; | 
 |  | 
 |     const auto tag = "HW_VSYNC_ON_" + to_string(displayId); | 
 |     ATRACE_INT(tag.c_str(), enabled == hal::Vsync::ENABLE ? 1 : 0); | 
 | } | 
 |  | 
 | status_t HWComposer::setClientTarget(HalDisplayId displayId, uint32_t slot, | 
 |                                      const sp<Fence>& acquireFence, const sp<GraphicBuffer>& target, | 
 |                                      ui::Dataspace dataspace) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     ALOGV("%s for display %s", __FUNCTION__, to_string(displayId).c_str()); | 
 |     auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; | 
 |     auto error = hwcDisplay->setClientTarget(slot, target, acquireFence, dataspace); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::getDeviceCompositionChanges( | 
 |         HalDisplayId displayId, bool frameUsesClientComposition, | 
 |         std::chrono::steady_clock::time_point earliestPresentTime, | 
 |         const std::shared_ptr<FenceTime>& previousPresentFence, nsecs_t expectedPresentTime, | 
 |         std::optional<android::HWComposer::DeviceRequestedChanges>* outChanges) { | 
 |     ATRACE_CALL(); | 
 |  | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     auto& hwcDisplay = displayData.hwcDisplay; | 
 |     if (!hwcDisplay->isConnected()) { | 
 |         return NO_ERROR; | 
 |     } | 
 |  | 
 |     uint32_t numTypes = 0; | 
 |     uint32_t numRequests = 0; | 
 |  | 
 |     hal::Error error = hal::Error::NONE; | 
 |  | 
 |     // First try to skip validate altogether. We can do that when | 
 |     // 1. The previous frame has not been presented yet or already passed the | 
 |     // earliest time to present. Otherwise, we may present a frame too early. | 
 |     // 2. There is no client composition. Otherwise, we first need to render the | 
 |     // client target buffer. | 
 |     const bool canSkipValidate = [&] { | 
 |         // We must call validate if we have client composition | 
 |         if (frameUsesClientComposition) { | 
 |             return false; | 
 |         } | 
 |  | 
 |         // If composer supports getting the expected present time, we can skip | 
 |         // as composer will make sure to prevent early presentation | 
 |         if (mComposer->isSupported(Hwc2::Composer::OptionalFeature::ExpectedPresentTime)) { | 
 |             return true; | 
 |         } | 
 |  | 
 |         // composer doesn't support getting the expected present time. We can only | 
 |         // skip validate if we know that we are not going to present early. | 
 |         return std::chrono::steady_clock::now() >= earliestPresentTime || | 
 |                 previousPresentFence->getSignalTime() == Fence::SIGNAL_TIME_PENDING; | 
 |     }(); | 
 |  | 
 |     displayData.validateWasSkipped = false; | 
 |     if (canSkipValidate) { | 
 |         sp<Fence> outPresentFence; | 
 |         uint32_t state = UINT32_MAX; | 
 |         error = hwcDisplay->presentOrValidate(expectedPresentTime, &numTypes, &numRequests, | 
 |                                               &outPresentFence, &state); | 
 |         if (!hasChangesError(error)) { | 
 |             RETURN_IF_HWC_ERROR_FOR("presentOrValidate", error, displayId, UNKNOWN_ERROR); | 
 |         } | 
 |         if (state == 1) { //Present Succeeded. | 
 |             std::unordered_map<HWC2::Layer*, sp<Fence>> releaseFences; | 
 |             error = hwcDisplay->getReleaseFences(&releaseFences); | 
 |             displayData.releaseFences = std::move(releaseFences); | 
 |             displayData.lastPresentFence = outPresentFence; | 
 |             displayData.validateWasSkipped = true; | 
 |             displayData.presentError = error; | 
 |             return NO_ERROR; | 
 |         } | 
 |         // Present failed but Validate ran. | 
 |     } else { | 
 |         error = hwcDisplay->validate(expectedPresentTime, &numTypes, &numRequests); | 
 |     } | 
 |     ALOGV("SkipValidate failed, Falling back to SLOW validate/present"); | 
 |     if (!hasChangesError(error)) { | 
 |         RETURN_IF_HWC_ERROR_FOR("validate", error, displayId, BAD_INDEX); | 
 |     } | 
 |  | 
 |     android::HWComposer::DeviceRequestedChanges::ChangedTypes changedTypes; | 
 |     changedTypes.reserve(numTypes); | 
 |     error = hwcDisplay->getChangedCompositionTypes(&changedTypes); | 
 |     RETURN_IF_HWC_ERROR_FOR("getChangedCompositionTypes", error, displayId, BAD_INDEX); | 
 |  | 
 |     auto displayRequests = static_cast<hal::DisplayRequest>(0); | 
 |     android::HWComposer::DeviceRequestedChanges::LayerRequests layerRequests; | 
 |     layerRequests.reserve(numRequests); | 
 |     error = hwcDisplay->getRequests(&displayRequests, &layerRequests); | 
 |     RETURN_IF_HWC_ERROR_FOR("getRequests", error, displayId, BAD_INDEX); | 
 |  | 
 |     DeviceRequestedChanges::ClientTargetProperty clientTargetProperty; | 
 |     error = hwcDisplay->getClientTargetProperty(&clientTargetProperty); | 
 |  | 
 |     outChanges->emplace(DeviceRequestedChanges{std::move(changedTypes), std::move(displayRequests), | 
 |                                                std::move(layerRequests), | 
 |                                                std::move(clientTargetProperty)}); | 
 |     error = hwcDisplay->acceptChanges(); | 
 |     RETURN_IF_HWC_ERROR_FOR("acceptChanges", error, displayId, BAD_INDEX); | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | sp<Fence> HWComposer::getPresentFence(HalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, Fence::NO_FENCE); | 
 |     return mDisplayData.at(displayId).lastPresentFence; | 
 | } | 
 |  | 
 | sp<Fence> HWComposer::getLayerReleaseFence(HalDisplayId displayId, HWC2::Layer* layer) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, Fence::NO_FENCE); | 
 |     const auto& displayFences = mDisplayData.at(displayId).releaseFences; | 
 |     auto fence = displayFences.find(layer); | 
 |     if (fence == displayFences.end()) { | 
 |         ALOGV("getLayerReleaseFence: Release fence not found"); | 
 |         return Fence::NO_FENCE; | 
 |     } | 
 |     return fence->second; | 
 | } | 
 |  | 
 | status_t HWComposer::presentAndGetReleaseFences( | 
 |         HalDisplayId displayId, std::chrono::steady_clock::time_point earliestPresentTime, | 
 |         const std::shared_ptr<FenceTime>& previousPresentFence) { | 
 |     ATRACE_CALL(); | 
 |  | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     auto& hwcDisplay = displayData.hwcDisplay; | 
 |  | 
 |     if (displayData.validateWasSkipped) { | 
 |         // explicitly flush all pending commands | 
 |         auto error = static_cast<hal::Error>(mComposer->executeCommands()); | 
 |         RETURN_IF_HWC_ERROR_FOR("executeCommands", error, displayId, UNKNOWN_ERROR); | 
 |         RETURN_IF_HWC_ERROR_FOR("present", displayData.presentError, displayId, UNKNOWN_ERROR); | 
 |         return NO_ERROR; | 
 |     } | 
 |  | 
 |     const bool waitForEarliestPresent = | 
 |             !mComposer->isSupported(Hwc2::Composer::OptionalFeature::ExpectedPresentTime) && | 
 |             previousPresentFence->getSignalTime() != Fence::SIGNAL_TIME_PENDING; | 
 |  | 
 |     if (waitForEarliestPresent) { | 
 |         ATRACE_NAME("wait for earliest present time"); | 
 |         std::this_thread::sleep_until(earliestPresentTime); | 
 |     } | 
 |  | 
 |     auto error = hwcDisplay->present(&displayData.lastPresentFence); | 
 |     RETURN_IF_HWC_ERROR_FOR("present", error, displayId, UNKNOWN_ERROR); | 
 |  | 
 |     std::unordered_map<HWC2::Layer*, sp<Fence>> releaseFences; | 
 |     error = hwcDisplay->getReleaseFences(&releaseFences); | 
 |     RETURN_IF_HWC_ERROR_FOR("getReleaseFences", error, displayId, UNKNOWN_ERROR); | 
 |  | 
 |     displayData.releaseFences = std::move(releaseFences); | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setPowerMode(PhysicalDisplayId displayId, hal::PowerMode mode) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     if (mode == hal::PowerMode::OFF) { | 
 |         setVsyncEnabled(displayId, hal::Vsync::DISABLE); | 
 |     } | 
 |  | 
 |     const auto& displayData = mDisplayData[displayId]; | 
 |     auto& hwcDisplay = displayData.hwcDisplay; | 
 |     switch (mode) { | 
 |         case hal::PowerMode::OFF: | 
 |         case hal::PowerMode::ON: | 
 |             ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); | 
 |             { | 
 |                 auto error = hwcDisplay->setPowerMode(mode); | 
 |                 if (error != hal::Error::NONE) { | 
 |                     LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(), error, | 
 |                                   displayId); | 
 |                 } | 
 |             } | 
 |             break; | 
 |         case hal::PowerMode::DOZE: | 
 |         case hal::PowerMode::DOZE_SUSPEND: | 
 |             ALOGV("setPowerMode: Calling HWC %s", to_string(mode).c_str()); | 
 |             { | 
 |                 bool supportsDoze = false; | 
 |                 auto error = hwcDisplay->supportsDoze(&supportsDoze); | 
 |                 if (error != hal::Error::NONE) { | 
 |                     LOG_HWC_ERROR("supportsDoze", error, displayId); | 
 |                 } | 
 |  | 
 |                 if (!supportsDoze) { | 
 |                     mode = hal::PowerMode::ON; | 
 |                 } | 
 |  | 
 |                 error = hwcDisplay->setPowerMode(mode); | 
 |                 if (error != hal::Error::NONE) { | 
 |                     LOG_HWC_ERROR(("setPowerMode(" + to_string(mode) + ")").c_str(), error, | 
 |                                   displayId); | 
 |                 } | 
 |             } | 
 |             break; | 
 |         default: | 
 |             ALOGV("setPowerMode: Not calling HWC"); | 
 |             break; | 
 |     } | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setActiveModeWithConstraints( | 
 |         PhysicalDisplayId displayId, hal::HWConfigId hwcModeId, | 
 |         const hal::VsyncPeriodChangeConstraints& constraints, | 
 |         hal::VsyncPeriodChangeTimeline* outTimeline) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto error = mDisplayData[displayId].hwcDisplay->setActiveConfigWithConstraints(hwcModeId, | 
 |                                                                                     constraints, | 
 |                                                                                     outTimeline); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setColorTransform(HalDisplayId displayId, const mat4& transform) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     auto error = displayData.hwcDisplay->setColorTransform(transform); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | void HWComposer::disconnectDisplay(HalDisplayId displayId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId); | 
 |     auto& displayData = mDisplayData[displayId]; | 
 |     const auto hwcDisplayId = displayData.hwcDisplay->getId(); | 
 |  | 
 |     mPhysicalDisplayIdMap.erase(hwcDisplayId); | 
 |     mDisplayData.erase(displayId); | 
 |  | 
 |     // Reset the primary display ID if we're disconnecting it. | 
 |     // This way isHeadless() will return false, which is necessary | 
 |     // because getPrimaryDisplayId() will crash. | 
 |     if (mPrimaryHwcDisplayId == hwcDisplayId) { | 
 |         mPrimaryHwcDisplayId.reset(); | 
 |     } | 
 | } | 
 |  | 
 | status_t HWComposer::setOutputBuffer(HalVirtualDisplayId displayId, const sp<Fence>& acquireFence, | 
 |                                      const sp<GraphicBuffer>& buffer) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto& displayData = mDisplayData[displayId]; | 
 |  | 
 |     auto error = displayData.hwcDisplay->setOutputBuffer(buffer, acquireFence); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | void HWComposer::clearReleaseFences(HalDisplayId displayId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId); | 
 |     mDisplayData[displayId].releaseFences.clear(); | 
 | } | 
 |  | 
 | status_t HWComposer::getHdrCapabilities(HalDisplayId displayId, HdrCapabilities* outCapabilities) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |  | 
 |     auto& hwcDisplay = mDisplayData[displayId].hwcDisplay; | 
 |     auto error = hwcDisplay->getHdrCapabilities(outCapabilities); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | int32_t HWComposer::getSupportedPerFrameMetadata(HalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, 0); | 
 |     return mDisplayData.at(displayId).hwcDisplay->getSupportedPerFrameMetadata(); | 
 | } | 
 |  | 
 | std::vector<ui::RenderIntent> HWComposer::getRenderIntents(HalDisplayId displayId, | 
 |                                                            ui::ColorMode colorMode) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, {}); | 
 |  | 
 |     std::vector<ui::RenderIntent> renderIntents; | 
 |     auto error = mDisplayData.at(displayId).hwcDisplay->getRenderIntents(colorMode, &renderIntents); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, {}); | 
 |     return renderIntents; | 
 | } | 
 |  | 
 | mat4 HWComposer::getDataspaceSaturationMatrix(HalDisplayId displayId, ui::Dataspace dataspace) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, {}); | 
 |  | 
 |     mat4 matrix; | 
 |     auto error = mDisplayData[displayId].hwcDisplay->getDataspaceSaturationMatrix(dataspace, | 
 |             &matrix); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, {}); | 
 |     return matrix; | 
 | } | 
 |  | 
 | status_t HWComposer::getDisplayedContentSamplingAttributes(HalDisplayId displayId, | 
 |                                                            ui::PixelFormat* outFormat, | 
 |                                                            ui::Dataspace* outDataspace, | 
 |                                                            uint8_t* outComponentMask) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = | 
 |             mDisplayData[displayId] | 
 |                     .hwcDisplay->getDisplayedContentSamplingAttributes(outFormat, outDataspace, | 
 |                                                                        outComponentMask); | 
 |     if (error == hal::Error::UNSUPPORTED) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setDisplayContentSamplingEnabled(HalDisplayId displayId, bool enabled, | 
 |                                                       uint8_t componentMask, uint64_t maxFrames) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = | 
 |             mDisplayData[displayId].hwcDisplay->setDisplayContentSamplingEnabled(enabled, | 
 |                                                                                  componentMask, | 
 |                                                                                  maxFrames); | 
 |  | 
 |     if (error == hal::Error::UNSUPPORTED) RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     if (error == hal::Error::BAD_PARAMETER) RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::getDisplayedContentSample(HalDisplayId displayId, uint64_t maxFrames, | 
 |                                                uint64_t timestamp, DisplayedFrameStats* outStats) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = | 
 |             mDisplayData[displayId].hwcDisplay->getDisplayedContentSample(maxFrames, timestamp, | 
 |                                                                           outStats); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | ftl::Future<status_t> HWComposer::setDisplayBrightness( | 
 |         PhysicalDisplayId displayId, float brightness, float brightnessNits, | 
 |         const Hwc2::Composer::DisplayBrightnessOptions& options) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, ftl::yield<status_t>(BAD_INDEX)); | 
 |     auto& display = mDisplayData[displayId].hwcDisplay; | 
 |  | 
 |     return display->setDisplayBrightness(brightness, brightnessNits, options) | 
 |             .then([displayId](hal::Error error) -> status_t { | 
 |                 if (error == hal::Error::UNSUPPORTED) { | 
 |                     RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |                 } | 
 |                 if (error == hal::Error::BAD_PARAMETER) { | 
 |                     RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |                 } | 
 |                 RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |                 return NO_ERROR; | 
 |             }); | 
 | } | 
 |  | 
 | bool HWComposer::getValidateSkipped(HalDisplayId displayId) const { | 
 |     if (mDisplayData.count(displayId) == 0) { | 
 |         return false; | 
 |     } | 
 |     return mDisplayData.at(displayId).validateWasSkipped; | 
 | } | 
 |  | 
 | status_t HWComposer::setBootDisplayMode(PhysicalDisplayId displayId, | 
 |                                         hal::HWConfigId displayModeId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->setBootDisplayConfig(displayModeId); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::clearBootDisplayMode(PhysicalDisplayId displayId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->clearBootDisplayConfig(); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | std::optional<hal::HWConfigId> HWComposer::getPreferredBootDisplayMode( | 
 |         PhysicalDisplayId displayId) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, std::nullopt); | 
 |     hal::HWConfigId displayModeId; | 
 |     const auto error = | 
 |             mDisplayData[displayId].hwcDisplay->getPreferredBootDisplayConfig(&displayModeId); | 
 |     if (error != hal::Error::NONE) { | 
 |         LOG_DISPLAY_ERROR(displayId, to_string(error).c_str()); | 
 |         return std::nullopt; | 
 |     } | 
 |     return displayModeId; | 
 | } | 
 |  | 
 | status_t HWComposer::getDisplayDecorationSupport( | 
 |         PhysicalDisplayId displayId, | 
 |         std::optional<aidl::android::hardware::graphics::common::DisplayDecorationSupport>* | 
 |                 support) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->getDisplayDecorationSupport(support); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setAutoLowLatencyMode(PhysicalDisplayId displayId, bool on) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->setAutoLowLatencyMode(on); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::getSupportedContentTypes( | 
 |         PhysicalDisplayId displayId, | 
 |         std::vector<hal::ContentType>* outSupportedContentTypes) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData.at(displayId).hwcDisplay->getSupportedContentTypes( | 
 |             outSupportedContentTypes); | 
 |  | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | status_t HWComposer::setContentType(PhysicalDisplayId displayId, hal::ContentType contentType) { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->setContentType(contentType); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |  | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | const std::unordered_map<std::string, bool>& HWComposer::getSupportedLayerGenericMetadata() const { | 
 |     return mSupportedLayerGenericMetadata; | 
 | } | 
 |  | 
 | void HWComposer::dump(std::string& result) const { | 
 |     result.append(mComposer->dumpDebugInfo()); | 
 | } | 
 |  | 
 | std::optional<PhysicalDisplayId> HWComposer::toPhysicalDisplayId( | 
 |         hal::HWDisplayId hwcDisplayId) const { | 
 |     if (const auto it = mPhysicalDisplayIdMap.find(hwcDisplayId); | 
 |         it != mPhysicalDisplayIdMap.end()) { | 
 |         return it->second; | 
 |     } | 
 |     return {}; | 
 | } | 
 |  | 
 | std::optional<hal::HWDisplayId> HWComposer::fromPhysicalDisplayId( | 
 |         PhysicalDisplayId displayId) const { | 
 |     if (const auto it = mDisplayData.find(displayId); it != mDisplayData.end()) { | 
 |         return it->second.hwcDisplay->getId(); | 
 |     } | 
 |     return {}; | 
 | } | 
 |  | 
 | bool HWComposer::shouldIgnoreHotplugConnect(hal::HWDisplayId hwcDisplayId, | 
 |                                             bool hasDisplayIdentificationData) const { | 
 |     if (mHasMultiDisplaySupport && !hasDisplayIdentificationData) { | 
 |         ALOGE("Ignoring connection of display %" PRIu64 " without identification data", | 
 |               hwcDisplayId); | 
 |         return true; | 
 |     } | 
 |  | 
 |     // Legacy mode only supports IDs LEGACY_DISPLAY_TYPE_PRIMARY and LEGACY_DISPLAY_TYPE_EXTERNAL. | 
 |     if (!mHasMultiDisplaySupport && mPhysicalDisplayIdMap.size() == 2) { | 
 |         ALOGE("Ignoring connection of tertiary display %" PRIu64, hwcDisplayId); | 
 |         return true; | 
 |     } | 
 |  | 
 |     return false; | 
 | } | 
 |  | 
 | std::optional<DisplayIdentificationInfo> HWComposer::onHotplugConnect( | 
 |         hal::HWDisplayId hwcDisplayId) { | 
 |     std::optional<DisplayIdentificationInfo> info; | 
 |     if (const auto displayId = toPhysicalDisplayId(hwcDisplayId)) { | 
 |         info = DisplayIdentificationInfo{.id = *displayId, | 
 |                                          .name = std::string(), | 
 |                                          .deviceProductInfo = std::nullopt}; | 
 |         if (mUpdateDeviceProductInfoOnHotplugReconnect) { | 
 |             uint8_t port; | 
 |             DisplayIdentificationData data; | 
 |             getDisplayIdentificationData(hwcDisplayId, &port, &data); | 
 |             if (auto newInfo = parseDisplayIdentificationData(port, data)) { | 
 |                 info->deviceProductInfo = std::move(newInfo->deviceProductInfo); | 
 |             } else { | 
 |                 ALOGE("Failed to parse identification data for display %" PRIu64, hwcDisplayId); | 
 |             } | 
 |         } | 
 |     } else { | 
 |         uint8_t port; | 
 |         DisplayIdentificationData data; | 
 |         const bool hasDisplayIdentificationData = | 
 |                 getDisplayIdentificationData(hwcDisplayId, &port, &data); | 
 |         if (mPhysicalDisplayIdMap.empty()) { | 
 |             mHasMultiDisplaySupport = hasDisplayIdentificationData; | 
 |             ALOGI("Switching to %s multi-display mode", | 
 |                   mHasMultiDisplaySupport ? "generalized" : "legacy"); | 
 |         } | 
 |  | 
 |         if (shouldIgnoreHotplugConnect(hwcDisplayId, hasDisplayIdentificationData)) { | 
 |             return {}; | 
 |         } | 
 |  | 
 |         info = [this, hwcDisplayId, &port, &data, hasDisplayIdentificationData] { | 
 |             const bool isPrimary = !mPrimaryHwcDisplayId; | 
 |             if (mHasMultiDisplaySupport) { | 
 |                 if (const auto info = parseDisplayIdentificationData(port, data)) { | 
 |                     return *info; | 
 |                 } | 
 |                 ALOGE("Failed to parse identification data for display %" PRIu64, hwcDisplayId); | 
 |             } else { | 
 |                 ALOGW_IF(hasDisplayIdentificationData, | 
 |                          "Ignoring identification data for display %" PRIu64, hwcDisplayId); | 
 |                 port = isPrimary ? LEGACY_DISPLAY_TYPE_PRIMARY : LEGACY_DISPLAY_TYPE_EXTERNAL; | 
 |             } | 
 |  | 
 |             return DisplayIdentificationInfo{.id = PhysicalDisplayId::fromPort(port), | 
 |                                              .name = isPrimary ? "Primary display" | 
 |                                                                : "Secondary display", | 
 |                                              .deviceProductInfo = std::nullopt}; | 
 |         }(); | 
 |     } | 
 |  | 
 |     if (!isConnected(info->id)) { | 
 |         allocatePhysicalDisplay(hwcDisplayId, info->id); | 
 |     } | 
 |     return info; | 
 | } | 
 |  | 
 | std::optional<DisplayIdentificationInfo> HWComposer::onHotplugDisconnect( | 
 |         hal::HWDisplayId hwcDisplayId) { | 
 |     LOG_ALWAYS_FATAL_IF(hwcDisplayId == mPrimaryHwcDisplayId, | 
 |                         "Primary display cannot be disconnected."); | 
 |  | 
 |     const auto displayId = toPhysicalDisplayId(hwcDisplayId); | 
 |     if (!displayId) { | 
 |         LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Invalid HWC display"); | 
 |         return {}; | 
 |     } | 
 |  | 
 |     // The display will later be destroyed by a call to | 
 |     // destroyDisplay(). For now we just mark it disconnected. | 
 |     if (isConnected(*displayId)) { | 
 |         mDisplayData[*displayId].hwcDisplay->setConnected(false); | 
 |     } else { | 
 |         LOG_HWC_DISPLAY_ERROR(hwcDisplayId, "Already disconnected"); | 
 |     } | 
 |     // The cleanup of Disconnect is handled through HWComposer::disconnectDisplay | 
 |     // via SurfaceFlinger's onHotplugReceived callback handling | 
 |     return DisplayIdentificationInfo{.id = *displayId, | 
 |                                      .name = std::string(), | 
 |                                      .deviceProductInfo = std::nullopt}; | 
 | } | 
 |  | 
 | void HWComposer::loadCapabilities() { | 
 |     static_assert(sizeof(hal::Capability) == sizeof(int32_t), "Capability size has changed"); | 
 |     auto capabilities = mComposer->getCapabilities(); | 
 |     for (auto capability : capabilities) { | 
 |         mCapabilities.emplace(capability); | 
 |     } | 
 | } | 
 |  | 
 | status_t HWComposer::setIdleTimerEnabled(PhysicalDisplayId displayId, | 
 |                                          std::chrono::milliseconds timeout) { | 
 |     ATRACE_CALL(); | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
 |     const auto error = mDisplayData[displayId].hwcDisplay->setIdleTimerEnabled(timeout); | 
 |     if (error == hal::Error::UNSUPPORTED) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, INVALID_OPERATION); | 
 |     } | 
 |     if (error == hal::Error::BAD_PARAMETER) { | 
 |         RETURN_IF_HWC_ERROR(error, displayId, BAD_VALUE); | 
 |     } | 
 |     RETURN_IF_HWC_ERROR(error, displayId, UNKNOWN_ERROR); | 
 |     return NO_ERROR; | 
 | } | 
 |  | 
 | bool HWComposer::hasDisplayIdleTimerCapability(PhysicalDisplayId displayId) const { | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, false); | 
 |     return mDisplayData.at(displayId).hwcDisplay->hasDisplayIdleTimerCapability(); | 
 | } | 
 |  | 
 | Hwc2::AidlTransform HWComposer::getPhysicalDisplayOrientation(PhysicalDisplayId displayId) const { | 
 |     ATRACE_CALL(); | 
 |     RETURN_IF_INVALID_DISPLAY(displayId, Hwc2::AidlTransform::NONE); | 
 |     Hwc2::AidlTransform outTransform; | 
 |     const auto& hwcDisplay = mDisplayData.at(displayId).hwcDisplay; | 
 |     const auto error = hwcDisplay->getPhysicalDisplayOrientation(&outTransform); | 
 |     RETURN_IF_HWC_ERROR(error, displayId, Hwc2::AidlTransform::NONE); | 
 |     return outTransform; | 
 | } | 
 |  | 
 | void HWComposer::loadLayerMetadataSupport() { | 
 |     mSupportedLayerGenericMetadata.clear(); | 
 |  | 
 |     std::vector<Hwc2::IComposerClient::LayerGenericMetadataKey> supportedMetadataKeyInfo; | 
 |     const auto error = mComposer->getLayerGenericMetadataKeys(&supportedMetadataKeyInfo); | 
 |     if (error != hardware::graphics::composer::V2_4::Error::NONE) { | 
 |         if (error != hardware::graphics::composer::V2_4::Error::UNSUPPORTED) { | 
 |             ALOGE("%s: %s failed: %s (%d)", __FUNCTION__, "getLayerGenericMetadataKeys", | 
 |                   toString(error).c_str(), static_cast<int32_t>(error)); | 
 |         } | 
 |         return; | 
 |     } | 
 |  | 
 |     for (const auto& [name, mandatory] : supportedMetadataKeyInfo) { | 
 |         mSupportedLayerGenericMetadata.emplace(name, mandatory); | 
 |     } | 
 | } | 
 |  | 
 | } // namespace impl | 
 | } // namespace android | 
 |  | 
 | // TODO(b/129481165): remove the #pragma below and fix conversion issues | 
 | #pragma clang diagnostic pop // ignored "-Wconversion" |