package xorg /* #cgo linux LDFLAGS: -lX11 -lXrandr -lXtst -lXfixes #include "xorg.h" */ import "C" import ( "fmt" "sync" "time" "unsafe" "demodesk/neko/internal/types" ) type KbdModifiers uint8 const ( KBD_CAPS_LOCK KbdModifiers = 2 KBD_NUM_LOCK KbdModifiers = 16 ) var ScreenConfigurations = make(map[int]types.ScreenConfiguration) var debounce_button = make(map[int]time.Time) var debounce_key = make(map[uint64]time.Time) var mu = sync.Mutex{} func GetScreenConfigurations() { mu.Lock() defer mu.Unlock() C.XGetScreenConfigurations() } func DisplayOpen(display string) error { mu.Lock() defer mu.Unlock() displayUnsafe := C.CString(display) defer C.free(unsafe.Pointer(displayUnsafe)) err := C.XDisplayOpen(displayUnsafe) if int(err) == 1 { return fmt.Errorf("Could not open display %s.", display) } return nil } func DisplayClose() { mu.Lock() defer mu.Unlock() C.XDisplayClose() } func Move(x, y int) { mu.Lock() defer mu.Unlock() C.XMove(C.int(x), C.int(y)) } func Scroll(x, y int) { mu.Lock() defer mu.Unlock() C.XScroll(C.int(x), C.int(y)) } func ButtonDown(code int) error { mu.Lock() defer mu.Unlock() if _, ok := debounce_button[code]; ok { return fmt.Errorf("debounced button %v", code) } debounce_button[code] = time.Now() C.XButton(C.uint(code), C.int(1)) return nil } func KeyDown(code uint64) error { mu.Lock() defer mu.Unlock() if _, ok := debounce_key[code]; ok { return fmt.Errorf("debounced key %v", code) } debounce_key[code] = time.Now() C.XKey(C.ulong(code), C.int(1)) return nil } func ButtonUp(code int) error { mu.Lock() defer mu.Unlock() if _, ok := debounce_button[code]; !ok { return fmt.Errorf("debounced button %v", code) } delete(debounce_button, code) C.XButton(C.uint(code), C.int(0)) return nil } func KeyUp(code uint64) error { mu.Lock() defer mu.Unlock() if _, ok := debounce_key[code]; !ok { return fmt.Errorf("debounced key %v", code) } delete(debounce_key, code) C.XKey(C.ulong(code), C.int(0)) return nil } func ResetKeys() { mu.Lock() defer mu.Unlock() for code := range debounce_button { C.XButton(C.uint(code), C.int(0)) delete(debounce_button, code) } for code := range debounce_key { C.XKey(C.ulong(code), C.int(0)) delete(debounce_key, code) } } func CheckKeys(duration time.Duration) { mu.Lock() defer mu.Unlock() t := time.Now() for code, start := range debounce_button { if t.Sub(start) < duration { continue } C.XButton(C.uint(code), C.int(0)) delete(debounce_button, code) } for code, start := range debounce_key { if t.Sub(start) < duration { continue } C.XKey(C.ulong(code), C.int(0)) delete(debounce_key, code) } } func ChangeScreenSize(width int, height int, rate int) error { mu.Lock() defer mu.Unlock() for index, size := range ScreenConfigurations { if size.Width == width && size.Height == height { for _, fps := range size.Rates { if int16(rate) == fps { C.XSetScreenConfiguration(C.int(index), C.short(fps)) return nil } } } } return fmt.Errorf("Unknown screen configuration %dx%d@%d.", width, height, rate) } func GetScreenSize() *types.ScreenSize { mu.Lock() defer mu.Unlock() index := int(C.XGetScreenSize()) rate := int16(C.XGetScreenRate()) if conf, ok := ScreenConfigurations[index]; ok { return &types.ScreenSize{ Width: conf.Width, Height: conf.Height, Rate: rate, } } return nil } func SetKeyboardModifier(mod KbdModifiers, active bool) { mu.Lock() defer mu.Unlock() num := C.int(0) if active { num = C.int(1) } C.XSetKeyboardModifier(C.int(mod), num) } func GetKeyboardModifiers() KbdModifiers { mu.Lock() defer mu.Unlock() return KbdModifiers(C.XGetKeyboardModifiers()) } func GetCursorImage() *types.CursorImage { mu.Lock() defer mu.Unlock() var cur *C.XFixesCursorImage cur = C.XGetCursorImage() defer C.XFree(unsafe.Pointer(cur)) width := uint16(cur.width) height := uint16(cur.height) return &types.CursorImage{ Width: width, Height: height, Xhot: uint16(cur.xhot), Yhot: uint16(cur.yhot), Serial: uint64(cur.cursor_serial), // Xlib stores 32-bit data in longs, even if longs are 64-bits long. Pixels: C.GoBytes(unsafe.Pointer(cur.pixels), C.int(width * height * 8)), } } //export goCreateScreenSize func goCreateScreenSize(index C.int, width C.int, height C.int, mwidth C.int, mheight C.int) { ScreenConfigurations[int(index)] = types.ScreenConfiguration{ Width: int(width), Height: int(height), Rates: make(map[int]int16), } } //export goSetScreenRates func goSetScreenRates(index C.int, rate_index C.int, rate C.short) { ScreenConfigurations[int(index)].Rates[int(rate_index)] = int16(rate) }