|  | /* | 
|  | * 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 <ftl/future.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 "../SurfaceFlinger.h" | 
|  | #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__) | 
|  |  | 
|  | namespace hal = android::hardware::graphics::composer::hal; | 
|  |  | 
|  | namespace android { | 
|  | namespace { | 
|  |  | 
|  | using android::hardware::Return; | 
|  | using android::hardware::Void; | 
|  | using android::HWC2::ComposerCallback; | 
|  |  | 
|  | class ComposerCallbackBridge : public hal::IComposerCallback { | 
|  | public: | 
|  | ComposerCallbackBridge(ComposerCallback* callback, int32_t sequenceId, | 
|  | bool vsyncSwitchingSupported) | 
|  | : mCallback(callback), | 
|  | mSequenceId(sequenceId), | 
|  | mVsyncSwitchingSupported(vsyncSwitchingSupported) {} | 
|  |  | 
|  | Return<void> onHotplug(hal::HWDisplayId display, hal::Connection conn) override { | 
|  | mCallback->onHotplugReceived(mSequenceId, display, conn); | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | Return<void> onRefresh(hal::HWDisplayId display) override { | 
|  | mCallback->onRefreshReceived(mSequenceId, display); | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | Return<void> onVsync(hal::HWDisplayId display, int64_t timestamp) override { | 
|  | if (!mVsyncSwitchingSupported) { | 
|  | mCallback->onVsyncReceived(mSequenceId, display, timestamp, std::nullopt); | 
|  | } else { | 
|  | ALOGW("Unexpected onVsync callback on composer >= 2.4, ignoring."); | 
|  | } | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | Return<void> onVsync_2_4(hal::HWDisplayId display, int64_t timestamp, | 
|  | hal::VsyncPeriodNanos vsyncPeriodNanos) override { | 
|  | if (mVsyncSwitchingSupported) { | 
|  | mCallback->onVsyncReceived(mSequenceId, display, timestamp, | 
|  | std::make_optional(vsyncPeriodNanos)); | 
|  | } else { | 
|  | ALOGW("Unexpected onVsync_2_4 callback on composer <= 2.3, ignoring."); | 
|  | } | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | Return<void> onVsyncPeriodTimingChanged( | 
|  | hal::HWDisplayId display, | 
|  | const hal::VsyncPeriodChangeTimeline& updatedTimeline) override { | 
|  | mCallback->onVsyncPeriodTimingChangedReceived(mSequenceId, display, updatedTimeline); | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | Return<void> onSeamlessPossible(hal::HWDisplayId display) override { | 
|  | mCallback->onSeamlessPossible(mSequenceId, display); | 
|  | return Void(); | 
|  | } | 
|  |  | 
|  | private: | 
|  | ComposerCallback* mCallback; | 
|  | const int32_t mSequenceId; | 
|  | const bool mVsyncSwitchingSupported; | 
|  | }; | 
|  |  | 
|  | } // namespace | 
|  |  | 
|  | HWComposer::~HWComposer() = default; | 
|  |  | 
|  | namespace impl { | 
|  |  | 
|  | HWComposer::HWComposer(std::unique_ptr<Hwc2::Composer> composer) | 
|  | : mComposer(std::move(composer)), | 
|  | mUpdateDeviceProductInfoOnHotplugReconnect( | 
|  | android::sysprop::update_device_product_info_on_hotplug_reconnect(false)) {} | 
|  |  | 
|  | HWComposer::HWComposer(const std::string& composerServiceName) | 
|  | : HWComposer(std::make_unique<Hwc2::impl::Composer>(composerServiceName)) {} | 
|  |  | 
|  | HWComposer::~HWComposer() { | 
|  | mDisplayData.clear(); | 
|  | } | 
|  |  | 
|  | void HWComposer::setConfiguration(HWC2::ComposerCallback* callback, int32_t sequenceId) { | 
|  | loadCapabilities(); | 
|  | loadLayerMetadataSupport(); | 
|  |  | 
|  | if (mRegisteredCallback) { | 
|  | ALOGW("Callback already registered. Ignored extra registration attempt."); | 
|  | return; | 
|  | } | 
|  | mRegisteredCallback = true; | 
|  | sp<ComposerCallbackBridge> callbackBridge( | 
|  | new ComposerCallbackBridge(callback, sequenceId, | 
|  | mComposer->isVsyncPeriodSwitchSupported())); | 
|  | mComposer->registerCallback(callbackBridge); | 
|  | } | 
|  |  | 
|  | 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(hal::Capability capability) const { | 
|  | return mCapabilities.count(capability) > 0; | 
|  | } | 
|  |  | 
|  | bool HWComposer::hasDisplayCapability(HalDisplayId displayId, | 
|  | hal::DisplayCapability capability) const { | 
|  | RETURN_IF_INVALID_DISPLAY(displayId, false); | 
|  | return mDisplayData.at(displayId).hwcDisplay->getCapabilities().count(capability) > 0; | 
|  | } | 
|  |  | 
|  | 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]; | 
|  | LOG_FATAL_IF(displayData.isVirtual, "%s: Invalid operation on virtual display with ID %s", | 
|  | __FUNCTION__, to_string(*displayId).c_str()); | 
|  |  | 
|  | { | 
|  | // 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; | 
|  | } | 
|  |  | 
|  | std::optional<DisplayId> HWComposer::allocateVirtualDisplay(uint32_t width, uint32_t height, | 
|  | ui::PixelFormat* format) { | 
|  | if (SurfaceFlinger::maxVirtualDisplaySize != 0 && | 
|  | (width > SurfaceFlinger::maxVirtualDisplaySize || | 
|  | height > SurfaceFlinger::maxVirtualDisplaySize)) { | 
|  | ALOGE("%s: Display size %ux%u exceeds maximum dimension of %" PRIu64, __FUNCTION__, width, | 
|  | height, SurfaceFlinger::maxVirtualDisplaySize); | 
|  | return {}; | 
|  | } | 
|  |  | 
|  | const auto displayId = mVirtualIdGenerator.nextId(); | 
|  | if (!displayId) { | 
|  | ALOGE("%s: No remaining virtual displays", __FUNCTION__); | 
|  | return {}; | 
|  | } | 
|  |  | 
|  | hal::HWDisplayId hwcDisplayId = 0; | 
|  | const auto error = static_cast<hal::Error>( | 
|  | mComposer->createVirtualDisplay(width, height, format, &hwcDisplayId)); | 
|  | if (error != hal::Error::NONE) { | 
|  | ALOGE("%s: Failed to create HWC virtual display", __FUNCTION__); | 
|  | mVirtualIdGenerator.markUnused(*displayId); | 
|  | return {}; | 
|  | } | 
|  |  | 
|  | 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); | 
|  | displayData.isVirtual = true; | 
|  | return displayId; | 
|  | } | 
|  |  | 
|  | void HWComposer::allocatePhysicalDisplay(hal::HWDisplayId hwcDisplayId, | 
|  | PhysicalDisplayId displayId) { | 
|  | mPhysicalDisplayIdMap[hwcDisplayId] = displayId; | 
|  |  | 
|  | if (!mInternalHwcDisplayId) { | 
|  | mInternalHwcDisplayId = hwcDisplayId; | 
|  | } else if (mInternalHwcDisplayId != hwcDisplayId && !mExternalHwcDisplayId) { | 
|  | mExternalHwcDisplayId = 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; | 
|  | } | 
|  |  | 
|  | HWC2::Layer* HWComposer::createLayer(HalDisplayId displayId) { | 
|  | RETURN_IF_INVALID_DISPLAY(displayId, nullptr); | 
|  |  | 
|  | HWC2::Layer* layer; | 
|  | auto error = mDisplayData[displayId].hwcDisplay->createLayer(&layer); | 
|  | RETURN_IF_HWC_ERROR(error, displayId, nullptr); | 
|  | return layer; | 
|  | } | 
|  |  | 
|  | void HWComposer::destroyLayer(HalDisplayId displayId, HWC2::Layer* layer) { | 
|  | RETURN_IF_INVALID_DISPLAY(displayId); | 
|  |  | 
|  | auto error = mDisplayData[displayId].hwcDisplay->destroyLayer(layer); | 
|  | RETURN_IF_HWC_ERROR(error, displayId); | 
|  | } | 
|  |  | 
|  | 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() == mInternalHwcDisplayId | 
|  | ? 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]; | 
|  |  | 
|  | LOG_FATAL_IF(displayData.isVirtual, "%s: Invalid operation on virtual display with ID %s", | 
|  | __FUNCTION__, to_string(displayId).c_str()); | 
|  |  | 
|  | // 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, | 
|  | 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 when we passed the earliest time | 
|  | // to present and there is no client. Otherwise, we may present a frame too | 
|  | // early or in case of client composition we first need to render the | 
|  | // client target buffer. | 
|  | const bool canSkipValidate = | 
|  | std::chrono::steady_clock::now() >= earliestPresentTime && !frameUsesClientComposition; | 
|  | displayData.validateWasSkipped = false; | 
|  | if (canSkipValidate) { | 
|  | sp<Fence> outPresentFence; | 
|  | uint32_t state = UINT32_MAX; | 
|  | error = hwcDisplay->presentOrValidate(&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(&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) { | 
|  | 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; | 
|  | } | 
|  |  | 
|  | { | 
|  | 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); | 
|  |  | 
|  | const auto& displayData = mDisplayData[displayId]; | 
|  | LOG_FATAL_IF(displayData.isVirtual, "%s: Invalid operation on virtual display with ID %s", | 
|  | __FUNCTION__, to_string(displayId).c_str()); | 
|  |  | 
|  | if (mode == hal::PowerMode::OFF) { | 
|  | setVsyncEnabled(displayId, hal::Vsync::DISABLE); | 
|  | } | 
|  |  | 
|  | 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]; | 
|  | bool isIdentity = transform == mat4(); | 
|  | auto error = displayData.hwcDisplay | 
|  | ->setColorTransform(transform, | 
|  | isIdentity ? hal::ColorTransform::IDENTITY | 
|  | : hal::ColorTransform::ARBITRARY_MATRIX); | 
|  | 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]; | 
|  |  | 
|  | // If this was a virtual display, add its slot back for reuse by future | 
|  | // virtual displays | 
|  | if (displayData.isVirtual) { | 
|  | mVirtualIdGenerator.markUnused(*HalVirtualDisplayId::tryCast(displayId)); | 
|  | } | 
|  |  | 
|  | const auto hwcDisplayId = displayData.hwcDisplay->getId(); | 
|  |  | 
|  | // TODO(b/74619554): Select internal/external display from remaining displays. | 
|  | if (hwcDisplayId == mInternalHwcDisplayId) { | 
|  | mInternalHwcDisplayId.reset(); | 
|  | } else if (hwcDisplayId == mExternalHwcDisplayId) { | 
|  | mExternalHwcDisplayId.reset(); | 
|  | } | 
|  | mPhysicalDisplayIdMap.erase(hwcDisplayId); | 
|  | mDisplayData.erase(displayId); | 
|  | } | 
|  |  | 
|  | 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]; | 
|  |  | 
|  | LOG_FATAL_IF(!displayData.isVirtual, "%s: Invalid operation on physical display with ID %s", | 
|  | __FUNCTION__, to_string(displayId).c_str()); | 
|  |  | 
|  | 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; | 
|  | } | 
|  |  | 
|  | std::future<status_t> HWComposer::setDisplayBrightness(PhysicalDisplayId displayId, | 
|  | float brightness) { | 
|  | RETURN_IF_INVALID_DISPLAY(displayId, ftl::yield<status_t>(BAD_INDEX)); | 
|  | auto& display = mDisplayData[displayId].hwcDisplay; | 
|  |  | 
|  | return ftl::chain(display->setDisplayBrightness(brightness)) | 
|  | .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; | 
|  | }); | 
|  | } | 
|  |  | 
|  | 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) { | 
|  | RETURN_IF_INVALID_DISPLAY(displayId, BAD_INDEX); | 
|  | const auto error = | 
|  | mDisplayData[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() && !it->second.isVirtual) { | 
|  | 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; | 
|  | } | 
|  |  | 
|  | if (!mHasMultiDisplaySupport && mInternalHwcDisplayId && mExternalHwcDisplayId) { | 
|  | 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 = !mInternalHwcDisplayId; | 
|  | 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 ? "Internal display" | 
|  | : "External display", | 
|  | .deviceProductInfo = std::nullopt}; | 
|  | }(); | 
|  | } | 
|  |  | 
|  | if (!isConnected(info->id)) { | 
|  | allocatePhysicalDisplay(hwcDisplayId, info->id); | 
|  | } | 
|  | return info; | 
|  | } | 
|  |  | 
|  | std::optional<DisplayIdentificationInfo> HWComposer::onHotplugDisconnect( | 
|  | hal::HWDisplayId hwcDisplayId) { | 
|  | const auto displayId = toPhysicalDisplayId(hwcDisplayId); | 
|  | if (!displayId) { | 
|  | ALOGE("Ignoring disconnection of invalid HWC display %" PRIu64, hwcDisplayId); | 
|  | 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 { | 
|  | ALOGW("Attempted to disconnect unknown display %" PRIu64, hwcDisplayId); | 
|  | } | 
|  | // 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(static_cast<hal::Capability>(capability)); | 
|  | } | 
|  | } | 
|  |  | 
|  | 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); | 
|  | } | 
|  | } | 
|  |  | 
|  | uint32_t HWComposer::getMaxVirtualDisplayCount() const { | 
|  | return mComposer->getMaxVirtualDisplayCount(); | 
|  | } | 
|  |  | 
|  | } // namespace impl | 
|  | } // namespace android | 
|  |  | 
|  | // TODO(b/129481165): remove the #pragma below and fix conversion issues | 
|  | #pragma clang diagnostic pop // ignored "-Wconversion" |