Exemple #1
0
func Quit() {
	C.Mix_CloseAudio()
	//for C.Mix_Init(0) != 0 {C.Mix_Quit()} // force a quit
	if GSDLWasInitHere {
		C.SDL_Quit()
	}
}
Exemple #2
0
func mainLoop(width, height int) {
	// SDL window must be created in the same thread where the events are
	// polled. Hence this stuff must be in a separate goroutine along with the
	// event loop.

	initFlags := int64(C.SDL_INIT_VIDEO) | int64(C.SDL_INIT_AUDIO)
	screenFlags := 0

	if C.SDL_Init(C.Uint32(initFlags)) == C.int(-1) {
		panic(getError())
	}

	screen := C.SDL_SetVideoMode(
		C.int(width), C.int(height), 32, C.Uint32(screenFlags))
	if screen == nil {
		panic(getError())
	}
	C.SDL_EnableUNICODE(1)
	C.SDL_EnableKeyRepeat(C.SDL_DEFAULT_REPEAT_DELAY, C.SDL_DEFAULT_REPEAT_INTERVAL)

	initAudio()

	// Synchronize with Run function.
	coord <- true

	eventLoop()
	C.SDL_Quit()

	// Synchronize with Stop function.
	coord <- true
	runLevel = off
}
Exemple #3
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func Quit() {
	C.SDL_Quit()

	eventFilterCache = nil
	for k, _ := range eventWatchesCache {
		delete(eventWatchesCache, k)
	}
}
Exemple #4
0
//Closes the window.
func CloseDisplay() {
	if screen != nil {
		close(kill)
		C.SDL_FreeSurface(screen)
		screen = nil
		C.SDL_Quit()
	}
}
Exemple #5
0
// Shuts down SDL
func Quit() {
	GlobalMutex.Lock()

	if currentVideoSurface != nil {
		currentVideoSurface.destroy()
		currentVideoSurface = nil
	}

	C.SDL_Quit()

	GlobalMutex.Unlock()
}
Exemple #6
0
func LaunchGame(title string, width, height int) error {
	// Convert the title to a c-string
	ctitle := C.CString(title)
	defer C.free(unsafe.Pointer(ctitle))

	// Initialize SDL
	if C.SDL_Init(C.SDL_INIT_VIDEO) < 0 {
		return errors.New("SDL_Init")
	}
	defer C.SDL_Quit()

	// Create the window
	window = C.SDL_CreateWindow(ctitle, C.SDL_WINDOWPOS_UNDEFINED, C.SDL_WINDOWPOS_UNDEFINED, C.int(width), C.int(height), C.SDL_WINDOW_SHOWN)
	if window == nil {
		return errors.New("SDL_CreateWindow")
	}
	defer C.SDL_DestroyWindow(window)

	// Create the renderer
	renderer = C.SDL_CreateRenderer(window, C.int(-1), C.SDL_RENDERER_ACCELERATED|C.SDL_RENDERER_PRESENTVSYNC)
	if renderer == nil {
		return errors.New("SDL_CreateRenderer")
	}
	defer C.SDL_DestroyRenderer(renderer)

	// Initialize image support
	if success := int(C.initIMG()); success == 0 {
		return errors.New("IMG_Init")
	}

	EventInit()

	C.gameLoop()

	destroyTextures()

	return nil
}
Exemple #7
0
func Quit() {
	C.SDL_Quit()
}
Exemple #8
0
// Cleanup should be called before the program closes
func Cleanup() {
	C.SDL_Quit()
}
Exemple #9
0
func main() {
	runtime.GOMAXPROCS(32)

	// sdl
	C.SDL_Init(C.SDL_INIT_AUDIO | C.SDL_INIT_VIDEO | C.SDL_INIT_TIMER)
	defer C.SDL_Quit()
	runtime.LockOSThread()
	window := C.SDL_CreateWindow(C.CString("play"), 0, 0, 1680, 1050,
		C.SDL_WINDOW_BORDERLESS|C.SDL_WINDOW_RESIZABLE|C.SDL_WINDOW_MAXIMIZED|C.SDL_WINDOW_OPENGL)
	if window == nil {
		fatalSDLError()
	}
	defer C.SDL_DestroyWindow(window)
	C.SDL_DisableScreenSaver()
	renderer := C.SDL_CreateRenderer(window, -1, C.SDL_RENDERER_ACCELERATED)
	if renderer == nil {
		fatalSDLError()
	}
	defer C.SDL_DestroyRenderer(renderer)
	var width, height C.int
	C.SDL_GetWindowSize(window, &width, &height)
	texture := C.SDL_CreateTexture(renderer,
		C.SDL_PIXELFORMAT_YV12,
		C.SDL_TEXTUREACCESS_STREAMING,
		width, height)
	if texture == nil {
		fatalSDLError()
	}
	defer C.SDL_DestroyTexture(texture)

	// sdl ttf
	if C.TTF_Init() == C.int(-1) {
		log.Fatal("sdl ttf init failed")
	}
	defer C.TTF_Quit()
	font := C.TTF_OpenFont(C.CString("/home/reus/font.ttf"), 32)
	if font == nil {
		fatalTTFError()
	}
	defer C.TTF_CloseFont(font)

	// open decoder
	decoder, err := NewDecoder(os.Args[1])
	if err != nil {
		log.Fatal(err)
	}
	if len(decoder.AudioStreams) == 0 || len(decoder.VideoStreams) == 0 {
		log.Fatal("no video or audio")
	}
	defer decoder.Close()

	// audio
	aCodecCtx := decoder.AudioStreams[0].codec
	audioStream := setupAudioOutput(int(aCodecCtx.sample_rate), int(aCodecCtx.channels), decoder)

	// call closure in sdl thread
	callEventCode := C.SDL_RegisterEvents(1)
	callbacks := make(chan func(Env), 1024)
	call := func(f func(env Env)) {
		var event C.SDL_Event
		var userevent C.SDL_UserEvent
		userevent._type = C.SDL_USEREVENT
		userevent.code = C.Sint32(callEventCode)
		C.set_userevent(&event, userevent)
		callbacks <- f
		C.SDL_PushEvent(&event)
	}

	// show fps
	nFrames := 0
	var fpsTexture *C.SDL_Texture
	var fpsColor C.SDL_Color
	var fpsSrc, fpsDst C.SDL_Rect
	fpsColor.r = 255
	fpsColor.g = 255
	fpsColor.b = 255
	fpsColor.a = 0
	go func() {
		for _ = range time.NewTicker(time.Second * 1).C {
			call(func(env Env) {
				cText := C.CString(fmt.Sprintf("%d", nFrames))
				sur := C.TTF_RenderUTF8_Blended(font, cText, fpsColor)
				fpsSrc.w = sur.w
				fpsSrc.h = sur.h
				fpsDst.w = sur.w
				fpsDst.h = sur.h
				C.SDL_DestroyTexture(fpsTexture)
				fpsTexture = C.SDL_CreateTextureFromSurface(env.renderer, sur)
				C.SDL_FreeSurface(sur)
				C.free(unsafe.Pointer(cText))
				nFrames = 0
			})
		}
	}()

	// render
	go func() {
		for {
			frame := <-decoder.timedFrames
			nFrames++
			call(func(env Env) {
				C.SDL_UpdateYUVTexture(env.texture, nil,
					(*C.Uint8)(unsafe.Pointer(frame.data[0])), frame.linesize[0],
					(*C.Uint8)(unsafe.Pointer(frame.data[1])), frame.linesize[1],
					(*C.Uint8)(unsafe.Pointer(frame.data[2])), frame.linesize[2])
				C.SDL_RenderCopy(env.renderer, env.texture, nil, nil)
				C.SDL_RenderCopy(env.renderer, fpsTexture, &fpsSrc, &fpsDst)
				C.SDL_RenderPresent(env.renderer)
				decoder.RecycleFrame(frame)
			})
		}
	}()

	// start decode
	decoder.Start(decoder.VideoStreams[0], decoder.AudioStreams[0], width, height)
	ret := C.Pa_StartStream(audioStream)
	if ret != C.paNoError {
		fatalPAError(ret)
	}

	// main loop
	var ev C.SDL_Event
	env := Env{
		window:   window,
		renderer: renderer,
		texture:  texture,
	}
	for {
		if C.SDL_WaitEvent(&ev) == C.int(0) {
			fatalSDLError()
		}
		switch C.get_event_type(&ev) {
		case C.SDL_QUIT:
			os.Exit(0)
		case C.SDL_KEYDOWN:
			key := C.get_event_key(&ev)
			switch key.keysym.sym {
			case C.SDLK_q: // quit
				os.Exit(0)
			case C.SDLK_f: // forward
				decoder.Seek(time.Second * 60)
			}
		case C.SDL_USEREVENT:
			if C.get_userevent_code(&ev) == callEventCode {
				(<-callbacks)(env)
			}
		}
	}
}