Add basic N64 support on Mac (#205)

Note: mupen64plus lib unload is not working properly on Mac, so stopping and restarting N64 emulation will cause a crash

cmd/worker/main.go

@@ -7,15 +7,15 @@ import (
 	"os/signal"
 	"time"
 
+	"github.com/faiface/mainthread"
 	config "github.com/giongto35/cloud-game/pkg/config/worker"
-
 	"github.com/giongto35/cloud-game/pkg/util/logging"
 	"github.com/giongto35/cloud-game/pkg/worker"
 	"github.com/golang/glog"
 	"github.com/spf13/pflag"
 )
 
-func main() {
+func run() {
 	rand.Seed(time.Now().UTC().UnixNano())
 
 	cfg := config.NewDefaultConfig()
@@ -43,3 +43,8 @@ func main() {
 		cancelCtx()
 	}
 }
+
+func main() {
+	// enables mainthread package and runs run in a separate goroutine
+	mainthread.Run(run)
+}

go.mod

@@ -5,6 +5,7 @@ go 1.12
 require (
 	cloud.google.com/go v0.43.0
 	github.com/disintegration/imaging v1.6.2
+	github.com/faiface/mainthread v0.0.0-20171120011319-8b78f0a41ae3
 	github.com/gen2brain/x264-go v0.0.0-20200517120223-c08131f6fc8a
 	github.com/go-gl/gl v0.0.0-20190320180904-bf2b1f2f34d7
 	github.com/gofrs/uuid v3.2.0+incompatible

go.sum

@@ -19,6 +19,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c=
 github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4=
+github.com/faiface/mainthread v0.0.0-20171120011319-8b78f0a41ae3 h1:baVdMKlASEHrj19iqjARrPbaRisD7EuZEVJj6ZMLl1Q=
+github.com/faiface/mainthread v0.0.0-20171120011319-8b78f0a41ae3/go.mod h1:VEPNJUlxl5KdWjDvz6Q1l+rJlxF2i6xqDeGuGAxa87M=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/gen2brain/x264-go v0.0.0-20200517120223-c08131f6fc8a h1:O6MN0Yik9iXHlC5t/NUznAgt18d0yAKIPZTihxLBIDE=

pkg/emulator/libretro/nanoarch/nanoarch.go

@@ -13,6 +13,7 @@ import (
 	"unsafe"
 
 	"github.com/disintegration/imaging"
+	"github.com/faiface/mainthread"
 	"github.com/giongto35/cloud-game/pkg/config"
 	"github.com/giongto35/cloud-game/pkg/emulator/libretro/image"
 	"github.com/go-gl/gl/v4.1-core/gl"
@@ -367,15 +368,20 @@ func initVideo() {
 		fmt.Println("Unsupported hw context:", video.hw.context_type)
 	}
 
-	video.window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
-	if err != nil {
-		panic(err)
-	}
+	// In OSX 10.14+ window creation and context creation must happen in the main thread
+	mainthread.Call(func() {
+		video.window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_OPENGL)
+		if err != nil {
+			panic(err)
+		}
 
-	video.context, err = video.window.GLCreateContext()
-	if err != nil {
-		panic(err)
-	}
+		video.context, err = video.window.GLCreateContext()
+		if err != nil {
+			panic(err)
+		}
+	})
+	// Bind context to current thread
+	video.window.GLMakeCurrent(video.context)
 
 	if err = gl.InitWithProcAddrFunc(sdl.GLGetProcAddress); err != nil {
 		panic(err)
@@ -431,13 +437,18 @@ func initVideo() {
 
 //export deinitVideo
 func deinitVideo() {
+	C.bridge_context_reset(video.hw.context_destroy)
 	if video.hw.depth {
 		gl.DeleteRenderbuffers(1, &video.rbo);
 	}
 	gl.DeleteFramebuffers(1, &video.fbo)
 	gl.DeleteTextures(1, &video.tex)
-	sdl.GLDeleteContext(video.context)
-	video.window.Destroy()
+	// In OSX 10.14+ window deletion must happen in the main thread
+	mainthread.Call(func() {
+		video.window.GLMakeCurrent(video.context)
+		sdl.GLDeleteContext(video.context)
+		video.window.Destroy()
+	})
 	video.isGl = false
 }
 
@@ -626,7 +637,9 @@ func coreLoadGame(filename string) {
 		if usesLibCo {
 			C.bridge_execute(C.initVideo_cgo)
 		} else {
+			runtime.LockOSThread()
 			initVideo()
+			runtime.UnlockOSThread()
 		}
 	}
 }