func main() {
// quality := flag.Float64("quality", 0.7, "Quality of compression.")
benchmark := flag.Bool("benchmark", false, "Benchmark it.")
iterations := flag.Int("iterations", 100, "Iterations for benchmark")
flag.Parse()
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
filename := flag.Arg(0)
if *benchmark {
start := time.Now()
b := gutils.Screenshot().Bounds()
buf := make([]byte, b.Dx()*b.Dy()*4)
w := bytes.NewBuffer(buf)
for i := 0; i < *iterations; i++ {
m := gutils.Screenshot()
if filename != "" {
// f, err := os.Create(filename)
// if err != nil {
// fmt.Println("Benchmark failed:", err)
// return
// }
start := time.Now()
// jpeg.Encode(w, m, nil)
png.Encode(w, m)
fmt.Println(time.Since(start))
// f.Close()
}
}
delta := time.Now().Sub(start)
usedDisk := filename != ""
fmt.Printf(
"Result: iterations=%d, time=%s, fps=%d, disk=%t.\n", *iterations,
delta, *iterations*1e9/int(delta), usedDisk,
)
} else {
if filename == "" {
fmt.Println("Filename required.")
return
}
m := gutils.Screenshot()
f, err := os.Create(filename)
if err != nil {
fmt.Println("Benchmark failed:", err)
return
}
png.Encode(f, m)
f.Close()
}
}
func main() {
m := gutils.Screenshot()
f, err := os.Create("some.jpg")
if err != nil {
panic(err)
}
defer f.Close()
jpeg.Encode(f, m, nil)
}