// render image of quantity
func render(w http.ResponseWriter, r *http.Request) {
url := strings.ToLower(r.URL.Path[len("/render/"):])
h, ok := engine.Quant(url)
if !ok {
http.Error(w, "render: unknown quantity: "+url, http.StatusNotFound)
return
} else {
cuda.LockThread() // TODO: for bootstrapping only, use dedicated thread
img := draw.Image(h.Download(), "auto", "auto") // TODO: not very concurrent
jpeg.Encode(w, img, &jpeg.Options{Quality: 100})
}
}
func dumpJPEG(out io.Writer, f *data.Slice) error {
img := draw.Image(f, *flag_min, *flag_max)
buf := bufio.NewWriter(out)
defer buf.Flush()
return jpeg.Encode(buf, img, &jpeg.Options{Quality: 100})
}
func dumpPNG(out io.Writer, f *data.Slice) error {
img := draw.Image(f, *flag_min, *flag_max)
buf := bufio.NewWriter(out)
defer buf.Flush()
return png.Encode(buf, img)
}