feature: Add EVDI display initialization

app/main.go

@@ -5,20 +5,36 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"os/signal"
 	"path"
+	"syscall"
 
 	libconfig "git.terah.dev/UnrealXR/unrealxr/app/config"
 	"git.terah.dev/UnrealXR/unrealxr/app/edidtools"
+	"git.terah.dev/UnrealXR/unrealxr/app/renderer"
 	"git.terah.dev/UnrealXR/unrealxr/edidpatcher"
+	"git.terah.dev/imterah/goevdi/libevdi"
 	"github.com/charmbracelet/log"
 	"github.com/goccy/go-yaml"
 	"github.com/kirsle/configdir"
+	"github.com/tebeka/atexit"
 	"github.com/urfave/cli/v3"
 
 	rl "git.terah.dev/UnrealXR/raylib-go/raylib"
 )
 
 func mainEntrypoint(context.Context, *cli.Command) error {
+	// Allow for clean exits
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt, syscall.SIGTERM)
+
+	go func() {
+		<-c
+		log.Info("Exiting...")
+		atexit.Exit(1)
+	}()
+
+	// TODO: add built-in privesc
 	if os.Geteuid() != 0 {
 		return fmt.Errorf("this program must be run as root")
 	}
@@ -63,7 +79,7 @@ func mainEntrypoint(context.Context, *cli.Command) error {
 	}
 
 	libconfig.InitializePotentiallyMissingConfigValues(config)
-	log.Info("Attempting to read display EDID file and fetch metadata")
+	log.Debug("Attempting to read display EDID file and fetch metadata")
 
 	displayMetadata, err := edidtools.FetchXRGlassEDID(*config.Overrides.AllowUnsupportedDevices)
 
@@ -71,8 +87,8 @@ func mainEntrypoint(context.Context, *cli.Command) error {
 		return fmt.Errorf("failed to fetch EDID or get metadata: %w", err)
 	}
 
-	log.Info("Got EDID file and metadata")
+	log.Debug("Got EDID file and metadata")
-	log.Info("Patching EDID firmware to be specialized")
+	log.Debug("Patching EDID firmware to be specialized")
 
 	patchedFirmware, err := edidpatcher.PatchEDIDToBeSpecialized(displayMetadata.EDID)
 
@@ -87,7 +103,7 @@ func mainEntrypoint(context.Context, *cli.Command) error {
 		return fmt.Errorf("failed to upload patched EDID firmware: %w", err)
 	}
 
-	defer func() {
+	atexit.Register(func() {
 		err := edidtools.UnloadCustomEDIDFirmware(displayMetadata)
 
 		if err != nil {
@@ -95,27 +111,59 @@ func mainEntrypoint(context.Context, *cli.Command) error {
 		}
 
 		log.Info("Please unplug and plug in your XR device to restore it back to normal settings.")
-	}()
+	})
 
 	fmt.Print("Press the Enter key to continue loading after you unplug and plug in your XR device.")
 	bufio.NewReader(os.Stdin).ReadBytes('\n') // Wait for Enter key press before continuing
 
 	log.Info("Initializing XR headset")
+	rl.SetTargetFPS(int32(displayMetadata.MaxRefreshRate * 2))
+	rl.InitWindow(int32(displayMetadata.MaxWidth), int32(displayMetadata.MaxHeight), "UnrealXR")
 
-	rl.InitWindow(800, 450, "raylib [core] example - basic window")
+	atexit.Register(func() {
-	defer rl.CloseWindow()
+		rl.CloseWindow()
+	})
 
-	rl.SetTargetFPS(60)
+	log.Info("Initializing virtual displays")
 
-	for !rl.WindowShouldClose() {
+	libevdi.SetupLogger(&libevdi.EvdiLogger{
-		rl.BeginDrawing()
+		Log: func(msg string) {
+			log.Debugf("EVDI: %s", msg)
+		},
+	})
 
-		rl.ClearBackground(rl.RayWhite)
+	displayMetadataBlock := make([]*renderer.EvdiDisplayMetadata, *config.DisplayConfig.Count)
-		rl.DrawText("Congrats! You created your first window!", 190, 200, 20, rl.LightGray)
 
-		rl.EndDrawing()
+	for currentDisplay := range *config.DisplayConfig.Count {
+		openedDevice, err := libevdi.Open(nil)
+
+		if err != nil {
+			log.Errorf("Failed to open EVDI device: %s", err.Error())
 		}
 
+		openedDevice.Connect(displayMetadata.EDID, uint(displayMetadata.MaxWidth), uint(displayMetadata.MaxHeight), uint(displayMetadata.MaxRefreshRate))
+
+		atexit.Register(func() {
+			openedDevice.Disconnect()
+		})
+
+		displayRect := &libevdi.EvdiDisplayRect{
+			X1: 0,
+			Y1: 0,
+			X2: displayMetadata.MaxWidth,
+			Y2: displayMetadata.MaxHeight,
+		}
+
+		displayBuffer := openedDevice.CreateBuffer(displayMetadata.MaxWidth, displayMetadata.MaxHeight, 4, displayRect)
+
+		displayMetadataBlock[currentDisplay] = &renderer.EvdiDisplayMetadata{
+			EvdiNode: openedDevice,
+			Rect:     displayRect,
+			Buffer:   displayBuffer,
+		}
+	}
+
+	atexit.Exit(0)
 	return nil
 }
 

go.mod

@@ -4,7 +4,7 @@ go 1.24.3
 
 require (
 	git.terah.dev/UnrealXR/raylib-go/raylib v0.55.2-0.20250623002739-1468af2636e1 // indirect
-	git.terah.dev/imterah/goevdi v0.0.0-20250211014657-96d98ad0735c // indirect
+	git.terah.dev/imterah/goevdi v1.14.10 // indirect
 	github.com/anoopengineer/edidparser v0.0.0-20240602223913-86ca9ed3d2b0 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
@@ -23,6 +23,7 @@ require (
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/muesli/termenv v0.16.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/tebeka/atexit v0.3.0 // indirect
 	github.com/urfave/cli/v3 v3.3.8 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b // indirect

go.sum

@@ -2,6 +2,8 @@ git.terah.dev/UnrealXR/raylib-go/raylib v0.55.2-0.20250623002739-1468af2636e1 h1
 git.terah.dev/UnrealXR/raylib-go/raylib v0.55.2-0.20250623002739-1468af2636e1/go.mod h1:ZRirF2UuVWSbl2ux7oyHwXcinni9msejCvtIsXbT8yY=
 git.terah.dev/imterah/goevdi v0.0.0-20250211014657-96d98ad0735c h1:Ys33r6kjCyCs8N3ofSzCGxxL1gLIfetIiO1uL5UIsAM=
 git.terah.dev/imterah/goevdi v0.0.0-20250211014657-96d98ad0735c/go.mod h1:RmxqlNaEJ+6qbHpyw6ivJhXlRYT1RcsZ9gzNOsFXfOA=
+git.terah.dev/imterah/goevdi v1.14.10 h1:3zr3E/WRkSQ//+Gcrh0wfy0LVgm4Pcglc5K4MVcZ7n8=
+git.terah.dev/imterah/goevdi v1.14.10/go.mod h1:z6GnBn2qHVV5N6fKZXPgUka8H9g5mZA5BRxCzUxLaNk=
 github.com/anoopengineer/edidparser v0.0.0-20240602223913-86ca9ed3d2b0 h1:rTfysyBCL7LPbq9GFpQbllvKT8vEI93lQUwksMMxHMI=
 github.com/anoopengineer/edidparser v0.0.0-20240602223913-86ca9ed3d2b0/go.mod h1:fEt61NePh3ZMxA+g3iC4CaGzY9lEsHRUkYJY2x0lBAw=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
@@ -18,6 +20,7 @@ github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd h1:vy0G
 github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
 github.com/charmbracelet/x/term v0.2.1 h1:AQeHeLZ1OqSXhrAWpYUtZyX1T3zVxfpZuEQMIQaGIAQ=
 github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/ebitengine/purego v0.8.4 h1:CF7LEKg5FFOsASUj0+QwaXf8Ht6TlFxg09+S9wz0omw=
 github.com/ebitengine/purego v0.8.4/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/go-logfmt/logfmt v0.6.0 h1:wGYYu3uicYdqXVgoYbvnkrPVXkuLM1p1ifugDMEdRi4=
@@ -36,9 +39,14 @@ github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6T
 github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
 github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/tebeka/atexit v0.3.0 h1:jleL99H7Ywt80oJKR+VWmJNnezcCOG0CuzcN3CIpsdI=
+github.com/tebeka/atexit v0.3.0/go.mod h1:WJmSUSmMT7WoR7etUOaGBVXk+f5/ZJ+67qwuedq7Fbs=
 github.com/urfave/cli/v3 v3.3.8 h1:BzolUExliMdet9NlJ/u4m5vHSotJ3PzEqSAZ1oPMa/E=
 github.com/urfave/cli/v3 v3.3.8/go.mod h1:FJSKtM/9AiiTOJL4fJ6TbMUkxBXn7GO9guZqoZtpYpo=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
@@ -52,3 +60,5 @@ golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
 golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=