func TestDecode(t *testing.T) {
for _, file := range naturalImageFiles {
io := util.OpenFile(file)
fmt.Printf(" - test: %s\n", file)
img, err := jpeg.Decode(io, &jpeg.DecoderOptions{})
if err != nil {
t.Errorf("Got Error: %v", err)
}
util.WritePNG(img, fmt.Sprintf("TestDecode_%s.png", file))
}
}
func TestDecodeIntoRGBA(t *testing.T) {
if jpeg.SupportRGBA() != true {
t.Skipf("This build is not support DecodeIntoRGBA.")
return
}
for _, file := range naturalImageFiles {
io := util.OpenFile(file)
fmt.Printf(" - test: %s\n", file)
img, err := jpeg.DecodeIntoRGBA(io, &jpeg.DecoderOptions{})
if err != nil {
t.Errorf("Got Error: %v", err)
continue
}
util.WritePNG(img, fmt.Sprintf("TestDecodeIntoRGBA_%s.png", file))
}
}
func TestDecodeScaledIntoRGB(t *testing.T) {
for _, file := range naturalImageFiles {
io := util.OpenFile(file)
fmt.Printf(" - test: %s\n", file)
img, err := jpeg.DecodeIntoRGB(io, &jpeg.DecoderOptions{ScaleTarget: image.Rect(0, 0, 100, 100)})
if err != nil {
t.Errorf("Got Error: %v", err)
}
if got := img.Bounds().Dx(); got != 256 {
t.Errorf("Wrong scaled width: %v, expect: 128 (=1024/8)", got)
}
if got := img.Bounds().Dy(); got != 192 {
t.Errorf("Wrong scaled height: %v, expect: 192 (=768/8)", got)
}
util.WritePNG(img, fmt.Sprintf("TestDecodeIntoRGB_%s.png", file))
}
}