func LoadFont(_file string, _size int) (*Font, error) {
cfile := C.CString(_file)
defer C.free(unsafe.Pointer(cfile))
font := C.TTF_OpenFont(cfile, C.int(_size))
/*if len((*font)) == 0 {
return nil, errors.New("Font load error: " + GetError())
}*/
return (*Font)(font), nil
}
func LoadFont(_file string, _size int) *Font {
cfile := C.CString(_file)
defer C.free(unsafe.Pointer(cfile))
font := C.TTF_OpenFont(cfile, C.int(_size))
if font == nil {
return nil
}
return (*Font)(cast(font))
}
func OpenFont(file string, ptsize int) (*Font, error) {
cfile := C.CString(file)
defer C.free(unsafe.Pointer(cfile))
font := C.TTF_OpenFont(cfile, C.int(ptsize))
if font == nil {
return nil, getError()
}
return &Font{c: font}, nil
}
func OpenFont(file string, ptsize int) (Font, error) {
c_file := C.CString(file)
defer C.free(unsafe.Pointer(c_file))
c_ptsize := C.int(ptsize)
ret := C.TTF_OpenFont(c_file, c_ptsize)
if ret == nil {
return Font{}, sdl.GetError()
}
return Font{unsafe.Pointer(ret)}, nil
}
func OpenFont(file string, size int) (*Font, error) {
_file := (C.CString)(file)
_size := (C.int)(size)
f := (*C.TTF_Font)(C.TTF_OpenFont(_file, _size))
C.free(unsafe.Pointer(_file))
if f == nil {
return nil, GetError()
}
return &Font{f}, nil
}
// Loads a font from a file at the specified point size.
func OpenFont(file string, ptsize int) *Font {
cfile := C.CString(file)
cfont := C.TTF_OpenFont(cfile, C.int(ptsize))
C.free(unsafe.Pointer(cfile))
if cfont == nil {
return nil
}
return &Font{cfont}
}
// Loads a font from a file at the specified point size.
func OpenFont(file string, ptsize int) *Font {
sdl.GlobalMutex.Lock()
cfile := C.CString(file)
cfont := C.TTF_OpenFont(cfile, C.int(ptsize))
C.free(unsafe.Pointer(cfile))
sdl.GlobalMutex.Unlock()
if cfont == nil {
return nil
}
return &Font{cfont: cfont}
}
// Loads a font from a file at the specified point size.
func OpenFont(file string, ptsize int) (*Font, error) {
sdl.GlobalMutex.Lock()
cfile := C.CString(file)
cfont := C.TTF_OpenFont(cfile, C.int(ptsize))
C.free(unsafe.Pointer(cfile))
sdl.GlobalMutex.Unlock()
if cfont == nil {
return nil, errors.New("Unable to load font")
}
return &Font{cfont: cfont}, nil
}
func LoadFont(_file string, _size int) (*Font, error) {
cfile := C.CString(_file)
defer C.free(unsafe.Pointer(cfile))
font := C.TTF_OpenFont(cfile, C.int(_size))
return (*Font)(font), nil
}
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)
}
}
}
}
"strconv"
)
type fontKey struct {
path string
size int
}
func (me *fontKey) String() string {
return me.path + strconv.Itoa(me.size)
}
var fonts = newFlyweight(
func(key key) interface{} {
k := key.(*fontKey)
font := C.TTF_OpenFont(C.CString(k.path), C.int(k.size))
return font
},
func(path key, val interface{}) {
C.TTF_CloseFont(val.(*C.TTF_Font))
})
//A drawable representation of a string.
type Text struct {
color Color
text *C.SDL_Surface
}
func (me *Text) Free() {
C.SDL_FreeSurface(me.text)
}
// Open a font file and create a font of the specified point size.
// Some .fon fonts will have several sizes embedded in the file, so the
// point size becomes the index of choosing which size. If the value
// is too high, the last indexed size will be the default.
func TTFOpenFont(file string, ptsize int) *C.TTF_Font {
cfile := cstr(file)
defer cfile.free()
return C.TTF_OpenFont(cfile, C.int(ptsize))
}
func LoadFont(path string, size int) *Font {
font := new(Font)
font.font = C.TTF_OpenFont(C.CString(path), C.int(size))
return font
}
