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xrandr.go
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xrandr.go
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package grub_common
import (
"github.com/linuxdeepin/go-x11-client"
"pkg.deepin.io/dde/api/drandr"
)
func getGfxmodesWithOutput(modes drandr.ModeInfos, output drandr.OutputInfo) (result Gfxmodes) {
for _, modeId := range output.Modes {
modeInfo := modes.Query(modeId)
if modeInfo.Width < 1024 || modeInfo.Height < 720 {
continue
}
mode := Gfxmode{
Width: int(modeInfo.Width),
Height: int(modeInfo.Height),
}
result = result.Add(mode)
}
return
}
func GetGfxmodesFromXRandr() (Gfxmodes, error) {
xConn, err := x.NewConn()
if err != nil {
return nil, err
}
defer xConn.Close()
screenInfo, err := drandr.GetScreenInfo(xConn)
if err != nil {
return nil, err
}
connectedOutputs := screenInfo.Outputs.ListConnectionOutputs()
gfxmodeMap := make(map[Gfxmode]int)
for _, output := range connectedOutputs {
modes := getGfxmodesWithOutput(screenInfo.Modes, output)
for _, mode := range modes {
gfxmodeMap[mode]++
}
}
var result Gfxmodes
for mode, count := range gfxmodeMap {
if count == len(connectedOutputs) {
result = result.Add(mode)
}
}
if len(result) == 0 {
result = Gfxmodes{Gfxmode{Width: 1024, Height: 768}}
}
return result, nil
}