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3254 lines (2825 loc) · 86.5 KB
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// SPDX-FileCopyrightText: 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: GPL-3.0-or-later
package display1
import (
"encoding/json"
"errors"
"fmt"
"math"
"os"
"os/exec"
"path/filepath"
"reflect"
"sort"
"strings"
"sync"
"time"
configManager "github.com/linuxdeepin/go-dbus-factory/org.desktopspec.ConfigManager"
"github.com/davecgh/go-spew/spew"
"github.com/godbus/dbus/v5"
"github.com/linuxdeepin/dde-api/dxinput"
dxutil "github.com/linuxdeepin/dde-api/dxinput/utils"
"github.com/linuxdeepin/dde-daemon/common/scale"
"github.com/linuxdeepin/dde-daemon/display1/brightness"
xs "github.com/linuxdeepin/go-dbus-factory/session/org.deepin.dde.xsettings1"
sysdisplay "github.com/linuxdeepin/go-dbus-factory/system/org.deepin.dde.display1"
dgesture "github.com/linuxdeepin/go-dbus-factory/system/org.deepin.dde.gesture1"
inputdevices "github.com/linuxdeepin/go-dbus-factory/system/org.deepin.dde.inputdevices1"
ofdbus "github.com/linuxdeepin/go-dbus-factory/system/org.freedesktop.dbus"
login1 "github.com/linuxdeepin/go-dbus-factory/system/org.freedesktop.login1"
timedate1 "github.com/linuxdeepin/go-dbus-factory/system/org.freedesktop.timedate1"
"github.com/linuxdeepin/go-lib/dbusutil"
"github.com/linuxdeepin/go-lib/log"
"github.com/linuxdeepin/go-lib/xdg/basedir"
x "github.com/linuxdeepin/go-x11-client"
"github.com/linuxdeepin/go-x11-client/ext/randr"
"golang.org/x/xerrors"
)
const (
DisplayModeCustom uint8 = iota
DisplayModeMirror
DisplayModeExtend
DisplayModeOnlyOne
DisplayModeUnknown
)
// DisplayModeInvalid 无效的模式
const DisplayModeInvalid uint8 = 0
const (
// 1：自动旋转；即未主动调用 SetRotation() 接口（由内部触发）发生的旋转操作，如根据重力传感器自动设定旋转方向
RotationFinishModeAuto uint8 = iota + 1
// 2：手动旋转；即主动调用 SetRotation() 接口完成旋转，如控制中心下拉框方式旋转屏幕
RotationFinishModeManual
)
const (
// "com.deepin.SensorProxy" 内核提供的服务
sensorProxyInterface = "com.deepin.SensorProxy"
sensorProxyPath = "/com/deepin/SensorProxy"
sensorProxySignalName = "RotationValueChanged"
sensorProxySignal = "com.deepin.SensorProxy.RotationValueChanged"
sensorProxyGetScreenStatus = "com.deepin.SensorProxy.GetScreenStatus"
)
const (
DSettingsAppID = "org.deepin.dde.daemon"
DSettingsDisplayName = "org.deepin.Display"
DSettingsKeyAutoColorTemperature = "autoColorTemperature"
DSettingsKeyDefaultTemperatureManual = "defaultTemperatureManual"
DSettingsKeyCustomModeTime = "customModeTime"
DSettingKeyColorTemperatureModeOn = "colorTemperatureModeOn"
DSettingsKeyBrightnessSetter = "brightnessSetter"
DSettingsKeyDisplayMode = "displayMode"
DSettingsKeyBrightness = "brightness"
DSettingsKeyMapOutput = "mapOutput"
DSettingsKeyRateFilter = "rateFilter"
DSettingsKeyPrimary = "primary"
DSettingsKeyCurrentCustomMode = "currentCustomMode"
DSettingsKeyBlacklist = "blacklist"
DSettingsKeyPriority = "priority"
DSettingsKeyColorTemperatureMode = "colorTemperatureMode"
DSettingsKeyColorTemperatureManual = "colorTemperatureManual"
DSettingsKeyRotateScreenTimeDelay = "rotateScreenTimeDelay"
DSettingsKeyCustomDisplayMode = "customDisplayMode"
customModeDelim = "+"
monitorsIdDelimiter = ","
defaultTemperatureMode = ColorTemperatureModeNone
defaultTemperatureManual = 6500
defaultRotateScreenTimeDelay = 500
touchscreenDialogCooldownSeconds = 5 // Seconds to wait for window manager ready
cmdTouchscreenDialogBin = "/usr/lib/deepin-daemon/dde-touchscreen-dialog"
)
const (
priorityEDP = iota
priorityDP
priorityHDMI
priorityDVI
priorityVGA
priorityOther
)
var (
_monitorTypePriority = map[string]int{
"edp": priorityEDP,
"dp": priorityDP,
"hdmi": priorityHDMI,
"dvi": priorityDVI,
"vga": priorityVGA,
}
)
var (
startBuildInScreenRotationMutex sync.Mutex
rotationScreenValue = map[string]uint16{
"normal": randr.RotationRotate0,
"left": randr.RotationRotate270, // 屏幕重力旋转左转90
"right": randr.RotationRotate90, // 屏幕重力旋转右转90
}
)
type touchscreenMapValue struct {
OutputName string
Auto bool
}
//go:generate dbusutil-gen -output display_dbusutil.go -import github.com/godbus/dbus/v5,github.com/linuxdeepin/go-x11-client,github.com/linuxdeepin/go-lib/strv -type Manager,Monitor manager.go monitor.go
//go:generate dbusutil-gen em -type Manager,Monitor
type Manager struct {
service *dbusutil.Service
sysBus *dbus.Conn
sysSigLoop *dbusutil.SignalLoop
sessionSigLoop *dbusutil.SignalLoop
// 系统级 dbus-daemon 服务
dbusDaemon ofdbus.DBus
sensorProxy dbus.BusObject
inputDevices inputdevices.InputDevices
// 系统级 display 服务
sysDisplay sysdisplay.Display
xConn *x.Conn
PropsMu sync.RWMutex
sysConfig SysRootConfig
userConfig UserConfig
userCfgMu sync.Mutex
recommendScaleFactor float64
builtinMonitor *Monitor
builtinMonitorMu sync.Mutex
candidateBuiltinMonitors []*Monitor // 候补的
monitorMap map[uint32]*Monitor
monitorMapMu sync.Mutex
mm monitorManager
debugOpts debugOptions
redshiftRunner *redshiftRunner
sessionActive bool
newSysCfg *SysRootConfig
cursorShowed bool
// dconfig com.deepin.Display
displayConfigMgr configManager.Manager
monitorsId monitorsId
monitorsIdMu sync.Mutex
hasBuiltinMonitor bool
rotateScreenTimeDelay int32
setFillModeMu sync.Mutex
delayApplyTimer *time.Timer
delayApplyOptions applyOptions
prevCurrentNumMonitors int
prevNumMonitors int
prevNumMonitorsUpdatedAt time.Time
delaySwitchMode *delaySwitchMode
applyMu sync.Mutex
applySaveMu sync.Mutex
inApply bool
futureConfig monitorsFutureConfig
// dbusutil-gen: equal=objPathsEqual
Monitors []dbus.ObjectPath
// dbusutil-gen: equal=nil
CustomIdList []string
HasChanged bool
DisplayMode byte
// dbusutil-gen: equal=nil
Brightness map[string]float64
// dbusutil-gen: equal=nil
Touchscreens dxTouchscreens
// dbusutil-gen: equal=nil
TouchscreensV2 dxTouchscreens
// dbusutil-gen: equal=nil
TouchMap map[string]string
touchscreenMap map[string]touchscreenMapValue
// touch.uuid -> touchScreenDialog cmd
touchScreenDialogMap map[string]*exec.Cmd
touchScreenDialogMutex sync.RWMutex
touchScreenDialogDelayTimer *time.Timer
touchScreenDialogReady bool
CurrentCustomId string
Primary string
PrimaryRect x.Rectangle
ScreenWidth uint16
ScreenHeight uint16
MaxBacklightBrightness uint32
// TODO 删除下面 2 个色温相关字段
// 存在gsetting中的色温模式
gsColorTemperatureMode int32
// 存在gsetting中的色温值
gsColorTemperatureManual int32
// 不支持调节色温的显卡型号
unsupportGammaDrmList []string
drmSupportGamma bool
customColorTempTimer *time.Timer
customColorTempFlag bool
ColorTemperatureEnabled bool `prop:"access:rw"`
SupportColorTemperature bool
// 用户设置的模式，用于使能开关时恢复设置
colorTemperatureModeOn int32
ColorTemperatureMode int32
// adjust color temperature by manual adjustment
ColorTemperatureManual int32
CustomColorTempTimePeriod string
xsManager xs.XSettings
isVM bool
}
type monitorSizeInfo struct {
width, height uint16
mmWidth, mmHeight uint32
}
var _ monitorManagerHooks = (*Manager)(nil)
var _timeZone string
var _dsConfigManager configManager.Manager
var _dsDefaultTemperatureManual int32
func newManager(service *dbusutil.Service) *Manager {
isVM, _ := isInVM()
m := &Manager{
service: service,
monitorMap: make(map[uint32]*Monitor),
Brightness: make(map[string]float64),
redshiftRunner: newRedshiftRunner(),
unsupportGammaDrmList: []string{
"Loongson",
},
isVM: isVM,
}
if !_greeterMode {
m.xsManager = xs.NewXSettings(m.service.Conn())
}
m.redshiftRunner.cb = func(value int) {
m.setColorTempOneShot()
}
chassis, err := getComputeChassis()
if err != nil {
logger.Warning(err)
}
if chassis == "laptop" || chassis == "all-in-one" {
m.hasBuiltinMonitor = true
}
m.ColorTemperatureManual = defaultTemperatureManual
m.ColorTemperatureMode = defaultTemperatureMode
m.xConn = _xConn
screen := m.xConn.GetDefaultScreen()
m.ScreenWidth = screen.WidthInPixels
m.ScreenHeight = screen.HeightInPixels
sessionSigLoop := dbusutil.NewSignalLoop(m.service.Conn(), 10)
m.sessionSigLoop = sessionSigLoop
sessionSigLoop.Start()
if _useWayland {
logger.Warning("display unsupport wayland")
return m
} else {
m.mm = newXMonitorManager(m.xConn, _hasRandr1d2)
}
m.mm.setHooks(m)
m.setPropMaxBacklightBrightness(uint32(brightness.GetMaxBacklightBrightness()))
m.sysBus, err = dbus.SystemBus()
if err != nil {
logger.Warning(err)
}
sysSigLoop := dbusutil.NewSignalLoop(m.sysBus, 10)
m.sysSigLoop = sysSigLoop
sysSigLoop.Start()
m.initDConfig(m.sysBus)
m.dbusDaemon = ofdbus.NewDBus(m.sysBus)
m.dbusDaemon.InitSignalExt(sysSigLoop, true)
m.inputDevices = inputdevices.NewInputDevices(m.sysBus)
m.inputDevices.InitSignalExt(sysSigLoop, true)
m.sysDisplay = sysdisplay.NewDisplay(m.sysBus)
td := timedate1.NewTimedate(m.sysBus)
_timeZone, err = td.Timezone().Get(0)
if err != nil {
logger.Warning(err)
_timeZone = "Asia/Beijing"
}
go func() {
m.listenTimezone()
}()
loginManager := login1.NewManager(m.sysBus)
loginManager.InitSignalExt(sysSigLoop, true)
/* 当系统从待机或者休眠状态唤醒时，需要重新获取当前屏幕的状态 */
_, err = loginManager.ConnectPrepareForSleep(func(isSleep bool) {
if !isSleep {
logger.Info("system Wakeup, need reacquire screen status", isSleep)
m.initScreenRotation()
logger.Info("Cancel wm blackscreen effect")
cmd := exec.Command("/bin/bash", "-c", "dbus-send --print-reply --dest=org.kde.KWin /BlackScreen org.kde.kwin.BlackScreen.setActive boolean:false")
error := cmd.Run()
if error != nil {
logger.Warning("Cancel wm blackscreen failed", error)
}
}
})
if err != nil {
logger.Warning("failed to connect signal PrepareForSleep:", err)
}
userPath, err := loginManager.GetUser(0, uint32(os.Getuid()))
if err != nil {
logger.Warning(err)
return m
}
userDBus, err := login1.NewUser(m.sysBus, userPath)
if err != nil {
logger.Warningf("new user failed: %v", err)
return m
}
sessionPath, err := userDBus.Display().Get(0)
if err != nil {
logger.Warningf("fail to get display session info: %v", err)
return m
}
logger.Debug("self session path:", sessionPath)
selfSession, err := login1.NewSession(m.sysBus, sessionPath.Path)
if err != nil {
logger.Warning(err)
return m
}
selfSession.InitSignalExt(sysSigLoop, true)
err = selfSession.Active().ConnectChanged(func(hasValue, active bool) {
if !hasValue {
return
}
logger.Debug("session active changed", active)
m.sessionActive = active
if !active {
return
}
if m.newSysCfg != nil {
m.handleSysConfigUpdated(m.newSysCfg)
m.newSysCfg = nil
}
m.handleTouchscreenChanged()
m.showTouchscreenDialogs()
// 监听用户的session Active属性改变信号，当切换到当前已经登录的用户时
// 需要从内核重新获取当前屏幕的状态，将锁屏界面旋转到对应方向
if m.builtinMonitor != nil {
m.initScreenRotation()
}
})
if err != nil {
logger.Warningf("prop active ConnectChanged failed! %v", err)
}
m.sessionActive, err = selfSession.Active().Get(0)
if err != nil {
logger.Warning(err)
}
return m
}
func (m *Manager) makeDConfigManager(bus *dbus.Conn, dsManager configManager.ConfigManager, appID string, id string) (configManager.Manager, error) {
if bus == nil {
return nil, errors.New("bus cannot be nil")
}
if dsManager == nil {
return nil, errors.New("dsManager cannot be nil")
}
if appID == "" || id == "" {
return nil, errors.New("appID and id cannot be empty")
}
dsPath, err := dsManager.AcquireManager(0, appID, id, "")
if err != nil {
logger.Warning(err)
return nil, err
}
mgr, err := configManager.NewManager(bus, dsPath)
if err != nil {
logger.Warning(err)
return nil, err
}
return mgr, nil
}
func (m *Manager) initDConfig(sysBus *dbus.Conn) {
ds := configManager.NewConfigManager(sysBus)
var err error
m.displayConfigMgr, err = m.makeDConfigManager(sysBus, ds, DSettingsAppID, DSettingsDisplayName)
if err != nil {
logger.Warning("Failed to create display config manager:", err)
return
}
// Initialize color temperature related configs first for compatibility
_dsConfigManager = m.displayConfigMgr
// Load initial values
m.loadInitialConfigValues()
// Setup change listeners
m.displayConfigMgr.InitSignalExt(m.sysSigLoop, true)
_, err = m.displayConfigMgr.ConnectValueChanged(func(key string) {
switch key {
case DSettingsKeyCustomModeTime:
m.getCustomTemperatureTime()
case DSettingKeyColorTemperatureModeOn:
m.getColorTemperatureModeOn()
case DSettingsKeyCurrentCustomMode:
m.getCurrentCustomId()
case DSettingsKeyRotateScreenTimeDelay:
m.getRotateScreenTimeDelay()
default:
break
}
})
if err != nil {
logger.Warning(err)
}
}
func (m *Manager) loadInitialConfigValues() {
m.getDefaultTemperatureManual()
m.getCustomTemperatureTime()
m.getColorTemperatureModeOn()
m.getCurrentCustomId()
m.getRotateScreenTimeDelay()
// ColorTemperatureManual will be loaded from user config via applyColorTempConfig()
}
func (m *Manager) getDefaultTemperatureManual() {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyDefaultTemperatureManual)
if err != nil {
logger.Warning(err)
return
}
switch vv := v.Value().(type) {
case float64:
_dsDefaultTemperatureManual = int32(vv)
case int64:
_dsDefaultTemperatureManual = int32(vv)
default:
logger.Warning("type is wrong!")
}
logger.Info("Default temperature manual:", _dsDefaultTemperatureManual)
}
func (m *Manager) getCustomTemperatureTime() {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyCustomModeTime)
if err != nil {
logger.Warning(err)
return
}
m.CustomColorTempTimePeriod = v.Value().(string)
logger.Info("Custom Mode Time:", m.CustomColorTempTimePeriod)
}
func (m *Manager) getColorTemperatureModeOn() {
v, err := m.displayConfigMgr.Value(0, DSettingKeyColorTemperatureModeOn)
if err != nil {
logger.Warning(err)
return
}
m.colorTemperatureModeOn = int32(v.Value().(int64))
logger.Info("Custom Mode on:", m.colorTemperatureModeOn)
}
func (m *Manager) getCurrentCustomId() {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyCurrentCustomMode)
if err != nil {
logger.Warning(err)
return
}
m.CurrentCustomId = v.Value().(string)
logger.Info("Current Custom Id:", m.CurrentCustomId)
}
func (m *Manager) getRotateScreenTimeDelay() {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyRotateScreenTimeDelay)
if err != nil {
logger.Warning(err)
return
}
m.rotateScreenTimeDelay = int32(v.Value().(int64))
logger.Info("Rotate Screen Time Delay:", m.rotateScreenTimeDelay)
}
func (m *Manager) getDisplayMode() uint8 {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyDisplayMode)
if err != nil {
logger.Warning(err)
return 2 // default extend mode
}
return uint8(v.Value().(int64))
}
func (m *Manager) getColorTemperatureMode() int32 {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyColorTemperatureMode)
if err != nil {
logger.Warning(err)
return 0 // default normal mode
}
return int32(v.Value().(int64))
}
func (m *Manager) getColorTemperatureManual() int32 {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyColorTemperatureManual)
if err != nil {
logger.Warning(err)
return 0 // default normal mode
}
return int32(v.Value().(int64))
}
func (m *Manager) getMapOutput() string {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyMapOutput)
if err != nil {
logger.Warning(err)
return ""
}
return v.Value().(string)
}
func (m *Manager) setMapOutput(value string) error {
return m.displayConfigMgr.SetValue(0, DSettingsKeyMapOutput, dbus.MakeVariant(value))
}
func (m *Manager) getRateFilter() string {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyRateFilter)
if err != nil {
logger.Warning(err)
return ""
}
return v.Value().(string)
}
func (m *Manager) getBrightness() string {
v, err := m.displayConfigMgr.Value(0, DSettingsKeyBrightness)
if err != nil {
logger.Warning(err)
return ""
}
return v.Value().(string)
}
// 初始化系统级 display 服务的信号处理
func (m *Manager) initSysDisplay() {
m.sysDisplay.InitSignalExt(m.sysSigLoop, true)
_, err := m.sysDisplay.ConnectConfigUpdated(func(updateAt string) {
logger.Debug("sys display ConfigUpdated", updateAt)
if updateAt == m.sysConfig.UpdateAt {
return
}
newSysConfig, err := m.getSysConfig()
if err != nil {
// 获取出错，忽略这一次更新信号
logger.Warning("getSysConfig err:", err)
return
}
if logger.GetLogLevel() == log.LevelDebug {
logger.Debug("get new sysConfig:", spew.Sdump(newSysConfig))
}
if !m.sessionActive {
m.newSysCfg = newSysConfig
return
}
m.handleSysConfigUpdated(newSysConfig)
})
if err != nil {
logger.Warning(err)
}
go func() {
m.drmSupportGamma = m.detectDrmSupportGamma()
if m.drmSupportGamma {
logger.Debug("setColorTempModeReal")
m.setColorTempModeReal(ColorTemperatureModeNone)
}
m.setPropSupportColorTemperature(!_inVM && m.drmSupportGamma)
}()
}
// 处理系统级别的配置更新
func (m *Manager) handleSysConfigUpdated(newSysConfig *SysRootConfig) {
logger.Debug("handleSysConfigUpdated")
setCfg := func() {
m.sysConfig.copyFrom(newSysConfig)
}
currentCfg := &m.sysConfig.Config
newCfg := &newSysConfig.Config
cfgEq := reflect.DeepEqual(currentCfg, newCfg)
if cfgEq {
// 具体配置没有任何改变
logger.Debug("cfg eq")
setCfg()
return
}
monitorMap := m.cloneMonitorMap()
monitors := getConnectedMonitors(monitorMap)
newCfg.updateUuid(monitors)
fillModesEq := reflect.DeepEqual(currentCfg.FillModes, newCfg.FillModes)
displayModeEq := currentCfg.DisplayMode == newCfg.DisplayMode
single := len(monitors) == 1
monitorsId := monitors.getMonitorsId()
currentMonitorCfgs := currentCfg.getMonitorConfigs(monitorsId, currentCfg.DisplayMode, single)
currentMonitorCfgs.sort()
newMonitorCfgs := newCfg.getMonitorConfigs(monitorsId, currentCfg.DisplayMode, single)
newMonitorCfgs.sort()
monitorCfgsEq := reflect.DeepEqual(currentMonitorCfgs, newMonitorCfgs)
logger.Debugf("fillModeEq: %v, displayModeEq: %v, monitorCfgsEq: %v, monitorsId: %v, single: %v",
fillModesEq, displayModeEq, monitorCfgsEq, monitorsId, single)
if logger.GetLogLevel() == log.LevelDebug {
logger.Debugf("currentMonitorCfgs: %s", spew.Sdump(currentMonitorCfgs))
logger.Debugf("newMonitorCfgs: %s", spew.Sdump(newMonitorCfgs))
}
setCfg()
if !displayModeEq {
// displayMode 改变了
logger.Debug("displayMode changed")
go func() {
err := m.applyDisplayConfig(newCfg.DisplayMode, monitorsId, monitorMap, false, nil)
if err != nil {
logger.Warning(err)
return
}
m.setPropDisplayMode(newCfg.DisplayMode)
}()
return
}
// 以下都是 displayMode 没变
doApply := false
if !monitorCfgsEq {
if currentMonitorCfgs.onlyBrNotEq(newMonitorCfgs) {
// 仅亮度改变
logger.Debug("monitorCfgs not eq, but only brightness changed")
go func() {
for _, config := range newMonitorCfgs {
if config.Enabled {
err := m.setBrightness(config.Name, config.Brightness)
if err != nil {
logger.Warning(err)
}
}
}
m.syncPropBrightness()
}()
} else {
// 不光是亮度改变，还有其他屏幕配置，比如位置pos，分辨率等改变。
logger.Debug("monitor configs changed")
doApply = true
go func() {
err := m.applySysMonitorConfigs(newCfg.DisplayMode, monitorsId, monitorMap, newMonitorCfgs, nil)
if err != nil {
logger.Warning(err)
return
}
}()
}
}
if !fillModesEq {
// fillModes 改变了
if !doApply {
// applySysMonitorConfigs 会在内部设置 fillMode
logger.Debug("fillModes changed, set fill mode for monitors")
monitors := m.getConnectedMonitors()
var primaryScreenFillMode = fillModeDefault
for _, config := range newMonitorCfgs {
if config.Primary {
primaryScreenFillMode = newCfg.FillModes[monitors.GetByName(config.Name).generateFillModeKey()]
break
}
}
go func() {
// 设置 fillModes
for _, monitor := range monitors {
var monitorFillMode = fillModeDefault
if newCfg.DisplayMode == DisplayModeMirror {
monitorFillMode = primaryScreenFillMode
} else {
monitorFillMode = newCfg.FillModes[monitor.generateFillModeKey()]
}
err := m.mm.setMonitorFillMode(monitor, monitorFillMode)
if err != nil {
logger.Warning("set monitor fill mode failed:", monitor, err)
}
}
}()
}
}
}
// initBuiltinMonitor 初始化内置显示器。
func (m *Manager) initBuiltinMonitor() {
if !m.hasBuiltinMonitor {
return
}
// 从系统级配置中获取内置显示器名称
builtinMonitorName := m.sysConfig.Config.Cache.BuiltinMonitor
monitors := m.getConnectedMonitors()
if builtinMonitorName != "" {
for _, monitor := range monitors {
if monitor.Name == builtinMonitorName {
m.builtinMonitor = monitor
}
}
}
// 从配置文件获取的内置显示器还存在，信任配置文件，可以返回了
if m.builtinMonitor != nil {
return
}
builtinMonitorName = ""
var rest []*Monitor
for _, monitor := range monitors {
name := strings.ToLower(monitor.Name)
if strings.HasPrefix(name, "vga") {
// 忽略 vga 开头的
} else if strings.HasPrefix(name, "edp") {
// 如果是 edp 开头，直接成为 builtinMonitor
rest = []*Monitor{monitor}
break
} else {
rest = append(rest, monitor)
}
}
if len(rest) == 1 {
m.builtinMonitor = rest[0]
builtinMonitorName = m.builtinMonitor.Name
} else if len(rest) > 1 {
// 选择 id 最小的显示器作为内置显示器，这个结果不太准确，但却无可奈何。
// 不保存 builtinMonitor 到配置文件中，由于 builtinMonitorName 为空，就会清空配置文件。
m.builtinMonitor = getMinIdMonitor(rest)
// 把剩余显示器列表 rest 设置到候选内置显示器列表。
m.candidateBuiltinMonitors = rest
}
// 保存内置显示器配置文件
err := m.saveBuiltinMonitorConfig(builtinMonitorName)
if err != nil {
logger.Warning("failed to save builtin monitor config:", err)
}
}
// updateBuiltinMonitorOnDisconnected 在发现显示器断开连接时，更新内置显示器，因为断开的不可能是内置显示器。
// 参数 id 是断开的显示器的 id。
func (m *Manager) updateBuiltinMonitorOnDisconnected(id uint32) {
m.builtinMonitorMu.Lock()
defer m.builtinMonitorMu.Unlock()
if len(m.candidateBuiltinMonitors) < 2 {
return
}
m.candidateBuiltinMonitors = monitorsRemove(m.candidateBuiltinMonitors, id)
if len(m.candidateBuiltinMonitors) == 1 {
// 当只剩下一个候补时能自动成为真的 builtin monitor
m.builtinMonitor = m.candidateBuiltinMonitors[0]
m.candidateBuiltinMonitors = nil
// 保存内置显示器配置文件
err := m.saveBuiltinMonitorConfig(m.builtinMonitor.Name)
if err != nil {
logger.Warning("failed to save builtin monitor config:", err)
}
}
}
// monitorsRemove 删除 monitors 列表中显示器 id 为参数 id 的显示器，返回新列表
func monitorsRemove(monitors []*Monitor, id uint32) []*Monitor {
var result []*Monitor
for _, m := range monitors {
if m.ID != id {
result = append(result, m)
}
}
return result
}
func (m *Manager) buildConfigForSingle(monitor *Monitor) SysMonitorConfigs {
cfg := monitor.toBasicSysConfig()
cfg.Enabled = true
cfg.Primary = true
mode := monitor.BestMode
cfg.Width = mode.Width
cfg.Height = mode.Height
cfg.RefreshRate = mode.Rate
// cfg.X = 0
// cfg.Y = 0
cfg.Brightness = 1
cfg.Rotation = randr.RotationRotate0
//cfg.Reflect = 0
return SysMonitorConfigs{cfg}
}
func (m *Manager) applyDisplayConfig(mode byte, monitorsId monitorsId, monitorMap map[uint32]*Monitor, setColorTemp bool, options applyOptions) error {
if monitorsId.v1 == "" {
return errors.New("monitorsId is empty")
}
// X 环境下，如果 randr 版本低于 1.2 时，不做操作
if !_useWayland && !_hasRandr1d2 {
return nil
}
monitors := getConnectedMonitors(monitorMap)
if len(monitors) == 0 {
// 拔掉所有显示器
logger.Debug("applyDisplayConfig not found any connected monitor，return")
return nil
}
m.updateConfigUuid(monitors)
if setColorTemp {
m.applyColorTempConfig(mode)
}
defer func() {
if _useWayland {
m.updateScreenSize()
}
}()
var err error
if len(monitors) == 1 {
// 单屏情况
screenCfg := m.getSysScreenConfig(monitorsId)
needSaveCfg := false
monitorConfigs := screenCfg.getSingleMonitorConfigs()
if len(monitorConfigs) == 0 {
// 没有单屏配置
needSaveCfg = true
monitorConfigs = m.buildConfigForSingle(monitors[0])
}
// 应用配置
err = m.applySysMonitorConfigs(DisplayModeInvalid, monitorsId, monitorMap, monitorConfigs, options)
if err != nil {
logger.Warning("failed to apply configs:", err)
return err
}
if needSaveCfg {
screenCfg.setSingleMonitorConfigs(monitorConfigs)
m.setSysScreenConfig(monitorsId, screenCfg)
err = m.saveSysConfig("single")
if err != nil {
logger.Warning(err)
}
}
return nil
}
// 多屏情况
switch mode {
case DisplayModeMirror:
err = m.applyModeMirror(monitorsId, monitorMap, options)
case DisplayModeExtend:
err = m.applyModeExtend(monitorsId, monitorMap, options)
case DisplayModeOnlyOne:
err = m.applyModeOnlyOne(monitorsId, monitorMap, options)
}
if err != nil {
logger.Warning(err)
return err
}
return nil
}
// 在显示器断开或连接时，monitorsId 会改变，重新应用与之相符合的显示配置。
func (m *Manager) updateMonitorsId(options applyOptions) (changed bool) {
m.monitorsIdMu.Lock()
defer m.monitorsIdMu.Unlock()
// NOTE: 加锁为了保护 monitorsId 和 delayApplyTimer
oldMonitorsId := m.monitorsId
monitorMap := m.cloneMonitorMap()
newMonitorsId := getConnectedMonitors(monitorMap).getMonitorsId()
if newMonitorsId != oldMonitorsId && newMonitorsId.v1 != "" {
m.monitorsId = newMonitorsId
logger.Debugf("monitors id changed, old monitors id: %v, new monitors id: %v", oldMonitorsId.v1, newMonitorsId.v1)
m.markClean()
delayApplyDuration := 10 * time.Millisecond
if strings.Contains(oldMonitorsId.v1, newMonitorsId.v1) {
// 提高延迟时间，避免毛刺（断开-重连现象）导致的问题。
delayApplyDuration = 1 * time.Second
}
if m.delayApplyTimer == nil {
m.delayApplyTimer = time.AfterFunc(delayApplyDuration, m.delayApplyConfig)
}
m.setDelayApplyOptions(options)
m.delayApplyTimer.Stop()
// timer Reset 之前需要 Stop
m.delayApplyTimer.Reset(delayApplyDuration)
}
return false
}
func (m *Manager) delayApplyConfig() {
options := m.getDelayApplyOptions()
// NOTE: applyConfig 应在非 X 事件处理的另外一个 goroutine 中进行。
monitorMap := m.cloneMonitorMap()
monitors := getConnectedMonitors(monitorMap)
monitorsId := monitors.getMonitorsId()
m.PropsMu.Lock()
delay := m.delaySwitchMode
m.PropsMu.Unlock()
var paths []dbus.ObjectPath
if delay != nil && len(monitors) > 1 && time.Since(delay.time) < 4*time.Second {
logger.Debug("delay != nil and len(monitors) > 1")
logger.Debug("since delay.time:", time.Since(delay.time))
// 这个 time.Since(delay.time) 一般是 1.5s 左右。
opts := getSwitchModeOptions(delay.mode, delay.name)
logger.Debugf("delay call switchModeAux, delaySwitchMode: %+v", delay)
err := m.switchModeAux(delay.mode, delay.oldMode, monitorsId, monitorMap, true, opts)
if err != nil {
logger.Warning("switch mode failed:", err)
}
paths = monitors.getPaths()
m.PropsMu.Lock()
m.delaySwitchMode = nil
m.PropsMu.Unlock()
} else {
logger.Debugf("delay call applyConfig, monitorsId: %v, options: %v", monitorsId, options)
m.applySaveMu.Lock()
paths = m.applyConfig(true, options)
m.applySaveMu.Unlock()