func (t *textureImpl) Upload(dp image.Point, src screen.Buffer, sr image.Rectangle, sender screen.Sender) {
// TODO: adjust if dp is outside dst bounds, or sr is outside src bounds.
gl.BindTexture(gl.TEXTURE_2D, t.id)
m := src.RGBA().SubImage(sr).(*image.RGBA)
b := m.Bounds()
// TODO check m bounds smaller than t.size
gl.TexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, b.Dx(), b.Dy(), gl.RGBA, gl.UNSIGNED_BYTE, m.Pix)
// TODO: send a screen.UploadedEvent.
}
func (t *textureImpl) Upload(dp image.Point, src screen.Buffer, sr image.Rectangle) {
t.w.glctxMu.Lock()
defer t.w.glctxMu.Unlock()
// TODO: adjust if dp is outside dst bounds, or r is outside src bounds.
t.w.glctx.BindTexture(gl.TEXTURE_2D, t.id)
m := src.RGBA().SubImage(sr).(*image.RGBA)
b := m.Bounds()
// TODO check m bounds smaller than t.size
t.w.glctx.TexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, b.Dx(), b.Dy(), gl.RGBA, gl.UNSIGNED_BYTE, m.Pix)
}
func (w *windowImpl) Upload(dp image.Point, src screen.Buffer, sr image.Rectangle) {
originalSRMin := sr.Min
sr = sr.Intersect(src.Bounds())
if sr.Empty() {
return
}
dp = dp.Add(sr.Min.Sub(originalSRMin))
// TODO: keep a texture around for this purpose?
t, err := w.s.NewTexture(sr.Size())
if err != nil {
panic(err)
}
t.Upload(image.Point{}, src, sr)
w.Draw(f64.Aff3{
1, 0, float64(dp.X),
0, 1, float64(dp.Y),
}, t, t.Bounds(), draw.Src, nil)
t.Release()
}
func main() {
flag.Parse()
rand.Seed(int64(time.Now().Nanosecond()))
board := NewBoard(9, *scale)
driver.Main(func(s screen.Screen) {
w, err := s.NewWindow(nil)
if err != nil {
log.Fatal(err)
}
defer w.Release()
var b screen.Buffer
defer func() {
if b != nil {
b.Release()
}
}()
for e := range w.Events() {
switch e := e.(type) {
case mouse.Event:
if e.Direction == mouse.DirRelease && e.Button != 0 {
board.click(b.RGBA(), int(e.X), int(e.Y), int(e.Button))
w.Send(paint.Event{})
}
case key.Event:
if e.Code == key.CodeEscape {
return
}
case paint.Event:
w.Upload(image.Point{}, b, b.Bounds())
w.Publish()
case size.Event:
// TODO: Set board size.
if b != nil {
b.Release()
}
b, err = s.NewBuffer(e.Size())
if err != nil {
log.Fatal(err)
}
render(b.RGBA(), board)
case error:
log.Print(e)
}
}
})
}
func main() {
log.SetFlags(0)
log.SetPrefix("preview: ")
flag.Usage = func() {
log.Print("Usage: preview [options] file")
flag.PrintDefaults()
}
flag.Parse()
if flag.NArg() != 1 {
flag.Usage()
os.Exit(1)
}
if *prof != "" {
log.Print("profile mode: will write out CPU profile after 5 seconds")
f, err := os.Create(*prof)
if err != nil {
log.Fatal(err)
}
err = pprof.StartCPUProfile(f)
if err != nil {
log.Fatal(err)
}
go func() {
time.Sleep(5 * time.Second)
pprof.StopCPUProfile()
log.Print("done writing CPU profile")
}()
}
f, err := os.Open(flag.Arg(0))
if err != nil {
log.Fatal(err)
}
log.Print("parsing STL...")
t := time.Now()
stl, err := slice.Parse(f)
if err != nil {
log.Fatal(err)
}
f.Close()
log.Printf("parsing took %v", time.Now().Sub(t))
if err := sliceSTL(stl); err != nil {
log.Fatal(err)
}
imgs, err := drawLayers(stl)
if err != nil {
log.Fatal(err)
}
r := imgs[0].Bounds()
log.Print("Launching UI...")
driver.Main(func(s screen.Screen) {
w, err := s.NewWindow(&screen.NewWindowOptions{
Width: r.Dx(),
Height: r.Dy(),
})
if err != nil {
log.Fatal(err)
}
defer w.Release()
r := image.Rect(int(stl.Min.X), int(stl.Min.Y), int(stl.Max.X)+1, int(stl.Max.Y)+1)
winSize := r.Size()
var b screen.Buffer
defer func() {
if b != nil {
b.Release()
}
}()
var sz size.Event
var lastClick mouse.Event
var layer int
redraw := func() {
draw.Draw(b.RGBA(), b.RGBA().Bounds(), imgs[layer], imgs[layer].Bounds().Min, draw.Src)
drawLayerNumber(b.RGBA(), layer)
w.Send(paint.Event{})
}
for e := range w.Events() {
switch e := e.(type) {
default:
case mouse.Event:
if e.Button == mouse.ButtonLeft {
if e.Y > lastClick.Y && layer < len(imgs)-1 {
layer++
redraw()
} else if e.Y < lastClick.Y && layer > 0 {
layer--
redraw()
}
lastClick = e
}
case key.Event:
log.Printf("key: %v", e)
if e.Code == key.CodeEscape {
log.Print("quitting")
return
}
case paint.Event:
w.Upload(image.Point{}, b, b.Bounds(), w)
w.Publish()
case screen.UploadedEvent:
// No-op.
case size.Event:
sz = e
if b != nil {
b.Release()
}
winSize = image.Point{sz.WidthPx, sz.HeightPx}
b, err = s.NewBuffer(winSize)
if err != nil {
log.Fatal(err)
}
redraw()
case error:
log.Printf("error: %v", e)
}
}
})
}
func main() {
flag.Parse()
rand.Seed(int64(time.Now().Nanosecond()))
board := NewBoard(9, *scale)
driver.Main(func(s screen.Screen) {
w, err := s.NewWindow(nil)
if err != nil {
log.Fatal(err)
}
defer w.Release()
var b screen.Buffer
defer func() {
if b != nil {
b.Release()
}
}()
for e := range w.Events() {
switch e := e.(type) {
case mouse.Event:
if e.Direction == mouse.DirRelease && e.Button != 0 {
board.click(b.RGBA(), int(e.X), int(e.Y), int(e.Button))
dirty = true
}
case key.Event:
if e.Code == key.CodeEscape {
return
}
case paint.Event:
// TODO: we shouldn't rely on the library sending us a constant
// stream of paint events. If we're dirty, we should just draw
// on the window and then call w.Publish.
//
// TODO: This check should save CPU time but causes flicker on Darwin.
//if dirty && !uploading {
w.Upload(image.Point{}, b, b.Bounds(), w) // TODO: On Darwin always writes to 0,0, ignoring first arg.
dirty = false
uploading = true
//}
w.Publish()
case screen.UploadedEvent:
// No-op.
uploading = false
case size.Event:
// TODO: Set board size.
if b != nil {
b.Release()
}
b, err = s.NewBuffer(e.Size())
if err != nil {
log.Fatal(err)
}
render(b.RGBA(), board)
case error:
log.Print(e)
}
}
})
}