mirror of https://github.com/liamg/aminal.git
1125 lines
33 KiB
Go
1125 lines
33 KiB
Go
package imaging
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import (
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"bytes"
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"image"
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"image/color"
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"testing"
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)
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func TestNew(t *testing.T) {
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testCases := []struct {
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name string
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w, h int
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c color.Color
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dstBounds image.Rectangle
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dstPix []uint8
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}{
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{
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"New 1x1 transparent",
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1, 1,
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color.Transparent,
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image.Rect(0, 0, 1, 1),
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[]uint8{0x00, 0x00, 0x00, 0x00},
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},
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{
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"New 1x2 red",
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1, 2,
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color.RGBA{255, 0, 0, 255},
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image.Rect(0, 0, 1, 2),
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[]uint8{0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff},
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},
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{
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"New 2x1 white",
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2, 1,
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color.White,
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image.Rect(0, 0, 2, 1),
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[]uint8{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
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},
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{
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"New 3x3 with alpha",
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3, 3,
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color.NRGBA{0x01, 0x23, 0x45, 0x67},
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image.Rect(0, 0, 3, 3),
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[]uint8{
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0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67,
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0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67,
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0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67, 0x01, 0x23, 0x45, 0x67,
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},
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},
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{
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"New 0x0 white",
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0, 0,
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color.White,
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image.Rect(0, 0, 0, 0),
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nil,
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},
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{
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"New 800x600 custom",
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800, 600,
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color.NRGBA{1, 2, 3, 4},
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image.Rect(0, 0, 800, 600),
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bytes.Repeat([]byte{1, 2, 3, 4}, 800*600),
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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got := New(tc.w, tc.h, tc.c)
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want := image.NewNRGBA(tc.dstBounds)
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want.Pix = tc.dstPix
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if !compareNRGBA(got, want, 0) {
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t.Fatalf("got result %#v want %#v", got, want)
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}
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})
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}
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}
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func BenchmarkNew(b *testing.B) {
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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New(1024, 1024, color.White)
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}
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}
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func TestClone(t *testing.T) {
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testCases := []struct {
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name string
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src image.Image
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want *image.NRGBA
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}{
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{
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"Clone NRGBA",
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&image.NRGBA{
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Rect: image.Rect(-1, -1, 0, 1),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 2),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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},
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{
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"Clone NRGBA64",
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&image.NRGBA64{
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Rect: image.Rect(-1, -1, 0, 1),
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Stride: 1 * 8,
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Pix: []uint8{
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0x00, 0x00, 0x11, 0x11, 0x22, 0x22, 0x33, 0x33,
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0xcc, 0xcc, 0xdd, 0xdd, 0xee, 0xee, 0xff, 0xff,
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},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 2),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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},
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{
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"Clone RGBA",
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&image.RGBA{
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Rect: image.Rect(-1, -1, 0, 2),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 3),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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},
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{
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"Clone RGBA64",
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&image.RGBA64{
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Rect: image.Rect(-1, -1, 0, 2),
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Stride: 1 * 8,
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Pix: []uint8{
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x11, 0x11, 0x22, 0x22, 0x33, 0x33,
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0xcc, 0xcc, 0xdd, 0xdd, 0xee, 0xee, 0xff, 0xff,
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},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 3),
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Stride: 1 * 4,
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Pix: []uint8{0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa, 0x33, 0xcc, 0xdd, 0xee, 0xff},
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},
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},
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{
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"Clone Gray",
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&image.Gray{
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Rect: image.Rect(-1, -1, 0, 1),
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Stride: 1 * 1,
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Pix: []uint8{0x11, 0xee},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 2),
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Stride: 1 * 4,
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Pix: []uint8{0x11, 0x11, 0x11, 0xff, 0xee, 0xee, 0xee, 0xff},
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},
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},
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{
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"Clone Gray16",
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&image.Gray16{
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Rect: image.Rect(-1, -1, 0, 1),
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Stride: 1 * 2,
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Pix: []uint8{0x11, 0x11, 0xee, 0xee},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 2),
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Stride: 1 * 4,
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Pix: []uint8{0x11, 0x11, 0x11, 0xff, 0xee, 0xee, 0xee, 0xff},
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},
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},
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{
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"Clone Alpha",
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&image.Alpha{
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Rect: image.Rect(-1, -1, 0, 1),
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Stride: 1 * 1,
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Pix: []uint8{0x11, 0xee},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 1, 2),
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Stride: 1 * 4,
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Pix: []uint8{0xff, 0xff, 0xff, 0x11, 0xff, 0xff, 0xff, 0xee},
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},
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},
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{
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"Clone YCbCr",
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&image.YCbCr{
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Rect: image.Rect(-1, -1, 5, 0),
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SubsampleRatio: image.YCbCrSubsampleRatio444,
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YStride: 6,
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CStride: 6,
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Y: []uint8{0x00, 0xff, 0x7f, 0x26, 0x4b, 0x0e},
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Cb: []uint8{0x80, 0x80, 0x80, 0x6b, 0x56, 0xc0},
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Cr: []uint8{0x80, 0x80, 0x80, 0xc0, 0x4b, 0x76},
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},
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&image.NRGBA{
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Rect: image.Rect(0, 0, 6, 1),
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Stride: 6 * 4,
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Pix: []uint8{
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0x00, 0x00, 0x00, 0xff,
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0xff, 0xff, 0xff, 0xff,
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0x7f, 0x7f, 0x7f, 0xff,
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0x7f, 0x00, 0x00, 0xff,
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0x00, 0x7f, 0x00, 0xff,
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0x00, 0x00, 0x7f, 0xff,
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},
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},
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},
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{
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"Clone YCbCr 444",
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&image.YCbCr{
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Y: []uint8{0x4c, 0x69, 0x1d, 0xb1, 0x96, 0xe2, 0x26, 0x34, 0xe, 0x59, 0x4b, 0x71, 0x0, 0x4c, 0x99, 0xff},
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Cb: []uint8{0x55, 0xd4, 0xff, 0x8e, 0x2c, 0x01, 0x6b, 0xaa, 0xc0, 0x95, 0x56, 0x40, 0x80, 0x80, 0x80, 0x80},
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Cr: []uint8{0xff, 0xeb, 0x6b, 0x36, 0x15, 0x95, 0xc0, 0xb5, 0x76, 0x41, 0x4b, 0x8c, 0x80, 0x80, 0x80, 0x80},
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YStride: 4,
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CStride: 4,
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SubsampleRatio: image.YCbCrSubsampleRatio444,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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&image.NRGBA{
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Pix: []uint8{0xff, 0x0, 0x0, 0xff, 0xff, 0x0, 0xff, 0xff, 0x0, 0x0, 0xff, 0xff, 0x49, 0xe1, 0xca, 0xff, 0x0, 0xff, 0x0, 0xff, 0xff, 0xff, 0x0, 0xff, 0x7f, 0x0, 0x0, 0xff, 0x7f, 0x0, 0x7f, 0xff, 0x0, 0x0, 0x7f, 0xff, 0x0, 0x7f, 0x7f, 0xff, 0x0, 0x7f, 0x0, 0xff, 0x82, 0x7f, 0x0, 0xff, 0x0, 0x0, 0x0, 0xff, 0x4c, 0x4c, 0x4c, 0xff, 0x99, 0x99, 0x99, 0xff, 0xff, 0xff, 0xff, 0xff},
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Stride: 16,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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},
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{
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"Clone YCbCr 440",
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&image.YCbCr{
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Y: []uint8{0x4c, 0x69, 0x1d, 0xb1, 0x96, 0xe2, 0x26, 0x34, 0xe, 0x59, 0x4b, 0x71, 0x0, 0x4c, 0x99, 0xff},
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Cb: []uint8{0x2c, 0x01, 0x6b, 0xaa, 0x80, 0x80, 0x80, 0x80},
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Cr: []uint8{0x15, 0x95, 0xc0, 0xb5, 0x80, 0x80, 0x80, 0x80},
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YStride: 4,
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CStride: 4,
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SubsampleRatio: image.YCbCrSubsampleRatio440,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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&image.NRGBA{
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Pix: []uint8{0x0, 0xb5, 0x0, 0xff, 0x86, 0x86, 0x0, 0xff, 0x77, 0x0, 0x0, 0xff, 0xfb, 0x7d, 0xfb, 0xff, 0x0, 0xff, 0x1, 0xff, 0xff, 0xff, 0x1, 0xff, 0x80, 0x0, 0x1, 0xff, 0x7e, 0x0, 0x7e, 0xff, 0xe, 0xe, 0xe, 0xff, 0x59, 0x59, 0x59, 0xff, 0x4b, 0x4b, 0x4b, 0xff, 0x71, 0x71, 0x71, 0xff, 0x0, 0x0, 0x0, 0xff, 0x4c, 0x4c, 0x4c, 0xff, 0x99, 0x99, 0x99, 0xff, 0xff, 0xff, 0xff, 0xff},
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Stride: 16,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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},
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{
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"Clone YCbCr 422",
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&image.YCbCr{
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Y: []uint8{0x4c, 0x69, 0x1d, 0xb1, 0x96, 0xe2, 0x26, 0x34, 0xe, 0x59, 0x4b, 0x71, 0x0, 0x4c, 0x99, 0xff},
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Cb: []uint8{0xd4, 0x8e, 0x01, 0xaa, 0x95, 0x40, 0x80, 0x80},
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Cr: []uint8{0xeb, 0x36, 0x95, 0xb5, 0x41, 0x8c, 0x80, 0x80},
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YStride: 4,
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CStride: 2,
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SubsampleRatio: image.YCbCrSubsampleRatio422,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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&image.NRGBA{
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Pix: []uint8{0xe2, 0x0, 0xe1, 0xff, 0xff, 0x0, 0xfe, 0xff, 0x0, 0x4d, 0x36, 0xff, 0x49, 0xe1, 0xca, 0xff, 0xb3, 0xb3, 0x0, 0xff, 0xff, 0xff, 0x1, 0xff, 0x70, 0x0, 0x70, 0xff, 0x7e, 0x0, 0x7e, 0xff, 0x0, 0x34, 0x33, 0xff, 0x1, 0x7f, 0x7e, 0xff, 0x5c, 0x58, 0x0, 0xff, 0x82, 0x7e, 0x0, 0xff, 0x0, 0x0, 0x0, 0xff, 0x4c, 0x4c, 0x4c, 0xff, 0x99, 0x99, 0x99, 0xff, 0xff, 0xff, 0xff, 0xff},
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Stride: 16,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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},
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{
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"Clone YCbCr 420",
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&image.YCbCr{
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Y: []uint8{0x4c, 0x69, 0x1d, 0xb1, 0x96, 0xe2, 0x26, 0x34, 0xe, 0x59, 0x4b, 0x71, 0x0, 0x4c, 0x99, 0xff},
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Cb: []uint8{0x01, 0xaa, 0x80, 0x80},
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Cr: []uint8{0x95, 0xb5, 0x80, 0x80},
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YStride: 4, CStride: 2,
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SubsampleRatio: image.YCbCrSubsampleRatio420,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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&image.NRGBA{
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Pix: []uint8{0x69, 0x69, 0x0, 0xff, 0x86, 0x86, 0x0, 0xff, 0x67, 0x0, 0x67, 0xff, 0xfb, 0x7d, 0xfb, 0xff, 0xb3, 0xb3, 0x0, 0xff, 0xff, 0xff, 0x1, 0xff, 0x70, 0x0, 0x70, 0xff, 0x7e, 0x0, 0x7e, 0xff, 0xe, 0xe, 0xe, 0xff, 0x59, 0x59, 0x59, 0xff, 0x4b, 0x4b, 0x4b, 0xff, 0x71, 0x71, 0x71, 0xff, 0x0, 0x0, 0x0, 0xff, 0x4c, 0x4c, 0x4c, 0xff, 0x99, 0x99, 0x99, 0xff, 0xff, 0xff, 0xff, 0xff},
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Stride: 16,
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Rect: image.Rectangle{Min: image.Point{X: 0, Y: 0}, Max: image.Point{X: 4, Y: 4}},
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},
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},
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{
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"Clone Paletted",
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&image.Paletted{
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Rect: image.Rect(-1, -1, 5, 0),
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Stride: 6 * 1,
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Palette: color.Palette{
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color.NRGBA{R: 0x00, G: 0x00, B: 0x00, A: 0xff},
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color.NRGBA{R: 0xff, G: 0xff, B: 0xff, A: 0xff},
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color.NRGBA{R: 0x7f, G: 0x7f, B: 0x7f, A: 0xff},
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color.NRGBA{R: 0x7f, G: 0x00, B: 0x00, A: 0xff},
|
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color.NRGBA{R: 0x00, G: 0x7f, B: 0x00, A: 0xff},
|
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color.NRGBA{R: 0x00, G: 0x00, B: 0x7f, A: 0xff},
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},
|
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Pix: []uint8{0x0, 0x1, 0x2, 0x3, 0x4, 0x5},
|
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},
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&image.NRGBA{
|
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Rect: image.Rect(0, 0, 6, 1),
|
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Stride: 6 * 4,
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Pix: []uint8{
|
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0x00, 0x00, 0x00, 0xff,
|
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0xff, 0xff, 0xff, 0xff,
|
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0x7f, 0x7f, 0x7f, 0xff,
|
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0x7f, 0x00, 0x00, 0xff,
|
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0x00, 0x7f, 0x00, 0xff,
|
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0x00, 0x00, 0x7f, 0xff,
|
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},
|
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},
|
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},
|
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}
|
|
|
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for _, tc := range testCases {
|
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t.Run(tc.name, func(t *testing.T) {
|
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got := Clone(tc.src)
|
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delta := 0
|
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if _, ok := tc.src.(*image.YCbCr); ok {
|
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delta = 1
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}
|
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if !compareNRGBA(got, tc.want, delta) {
|
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t.Fatalf("got result %#v want %#v", got, tc.want)
|
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}
|
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})
|
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}
|
|
}
|
|
|
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func TestCrop(t *testing.T) {
|
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testCases := []struct {
|
|
name string
|
|
src image.Image
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r image.Rectangle
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want *image.NRGBA
|
|
}{
|
|
{
|
|
"Crop 2x3 2x1",
|
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&image.NRGBA{
|
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Rect: image.Rect(-1, -1, 1, 2),
|
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Stride: 2 * 4,
|
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Pix: []uint8{
|
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0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
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0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
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0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
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},
|
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},
|
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image.Rect(-1, 0, 1, 1),
|
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&image.NRGBA{
|
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Rect: image.Rect(0, 0, 2, 1),
|
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Stride: 2 * 4,
|
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Pix: []uint8{
|
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0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
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},
|
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},
|
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},
|
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}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
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got := Crop(tc.src, tc.r)
|
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if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
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}
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkCrop(b *testing.B) {
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
Crop(testdataBranchesJPG, image.Rect(100, 100, 300, 300))
|
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}
|
|
}
|
|
|
|
func TestCropCenter(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src image.Image
|
|
w, h int
|
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want *image.NRGBA
|
|
}{
|
|
{
|
|
"CropCenter 2x3 2x1",
|
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&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
2, 1,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 1),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropCenter 2x3 0x1",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
0, 1,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 0, 0),
|
|
Stride: 0,
|
|
Pix: []uint8{},
|
|
},
|
|
},
|
|
{
|
|
"CropCenter 2x3 5x5",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
5, 5,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 3),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := CropCenter(tc.src, tc.w, tc.h)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCropAnchor(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src image.Image
|
|
w, h int
|
|
anchor Anchor
|
|
want *image.NRGBA
|
|
}{
|
|
{
|
|
"CropAnchor 4x4 2x2 TopLeft",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
TopLeft,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 Top",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
Top,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
|
|
0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 TopRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
TopRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 Left",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
Left,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 Center",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
Center,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 Right",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
Right,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 BottomLeft",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
BottomLeft,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 Bottom",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
Bottom,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 2x2 BottomRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
2, 2,
|
|
BottomRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 0x0 BottomRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
0, 0,
|
|
BottomRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 0, 0),
|
|
Stride: 0,
|
|
Pix: []uint8{},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 100x100 BottomRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
100, 100,
|
|
BottomRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 4, 4),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 1x100 BottomRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
1, 100,
|
|
BottomRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 1, 4),
|
|
Stride: 1 * 4,
|
|
Pix: []uint8{
|
|
0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"CropAnchor 4x4 0x100 BottomRight",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 3, 3),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
|
|
},
|
|
},
|
|
0, 100,
|
|
BottomRight,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 0, 0),
|
|
Stride: 0,
|
|
Pix: []uint8{},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := CropAnchor(tc.src, tc.w, tc.h, tc.anchor)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestPaste(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src1 image.Image
|
|
src2 image.Image
|
|
p image.Point
|
|
want *image.NRGBA
|
|
}{
|
|
{
|
|
"Paste 2x3 2x1",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 3, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
|
|
},
|
|
},
|
|
image.Pt(-1, 0),
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 3),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Paste 3x4 4x3 bottom right intersection",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 2, 3),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 5, 4),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
|
|
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
|
|
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
|
|
},
|
|
},
|
|
image.Pt(0, 1),
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 3, 4),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
|
|
0x40, 0x41, 0x42, 0x43, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Paste 3x4 4x3 top left intersection",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 2, 3),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 5, 4),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
|
|
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
|
|
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
|
|
},
|
|
},
|
|
image.Pt(-3, -2),
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 3, 4),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0x18, 0x19, 0x1a, 0x1b,
|
|
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Paste 3x4 4x3 no intersection",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 2, 3),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 5, 4),
|
|
Stride: 4 * 4,
|
|
Pix: []uint8{
|
|
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
|
|
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
|
|
0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
|
|
},
|
|
},
|
|
image.Pt(-20, 20),
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 3, 4),
|
|
Stride: 3 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
|
|
0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
|
|
0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := Paste(tc.src1, tc.src2, tc.p)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkPaste(b *testing.B) {
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
Paste(testdataBranchesJPG, testdataFlowersSmallPNG, image.Pt(100, 100))
|
|
}
|
|
}
|
|
|
|
func TestPasteCenter(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src1 image.Image
|
|
src2 image.Image
|
|
want *image.NRGBA
|
|
}{
|
|
{
|
|
"PasteCenter 2x3 2x1",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 3, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 3),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := PasteCenter(tc.src1, tc.src2)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestOverlay(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src1 image.Image
|
|
src2 image.Image
|
|
p image.Point
|
|
a float64
|
|
want *image.NRGBA
|
|
}{
|
|
{
|
|
"Overlay 2x3 2x1 1.0",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0x60, 0x00, 0x90, 0xff, 0xff, 0x00, 0x99, 0x7f,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 3, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x20, 0x40, 0x80, 0x7f, 0xaa, 0xbb, 0xcc, 0xff,
|
|
},
|
|
},
|
|
image.Pt(-1, 0),
|
|
1.0,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 3),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x00, 0x11, 0x22, 0x33, 0xcc, 0xdd, 0xee, 0xff,
|
|
0x40, 0x1f, 0x88, 0xff, 0xaa, 0xbb, 0xcc, 0xff,
|
|
0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Overlay 2x2 2x2 0.5",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 1),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,
|
|
0x00, 0x00, 0xff, 0xff, 0x20, 0x20, 0x20, 0x00,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 1),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
|
|
0xff, 0xff, 0x00, 0xff, 0x20, 0x20, 0x20, 0xff,
|
|
},
|
|
},
|
|
image.Pt(-1, -1),
|
|
0.5,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0x7f, 0x7f, 0xff, 0x00, 0xff, 0x00, 0xff,
|
|
0x7f, 0x7f, 0x7f, 0xff, 0x20, 0x20, 0x20, 0x7f,
|
|
},
|
|
},
|
|
},
|
|
{
|
|
"Overlay 2x2 2x2 0.5 no intersection",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 1),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,
|
|
0x00, 0x00, 0xff, 0xff, 0x20, 0x20, 0x20, 0x00,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 1),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00,
|
|
0xff, 0xff, 0x00, 0xff, 0x20, 0x20, 0x20, 0xff,
|
|
},
|
|
},
|
|
image.Pt(-10, 10),
|
|
0.5,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff,
|
|
0x00, 0x00, 0xff, 0xff, 0x20, 0x20, 0x20, 0x00,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := Overlay(tc.src1, tc.src2, tc.p, tc.a)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkOverlay(b *testing.B) {
|
|
b.ReportAllocs()
|
|
for i := 0; i < b.N; i++ {
|
|
Overlay(testdataBranchesJPG, testdataFlowersSmallPNG, image.Pt(100, 100), 0.5)
|
|
}
|
|
}
|
|
|
|
func TestOverlayCenter(t *testing.T) {
|
|
testCases := []struct {
|
|
name string
|
|
src1 image.Image
|
|
src2 image.Image
|
|
a float64
|
|
want *image.NRGBA
|
|
}{
|
|
{
|
|
"OverlayCenter 2x3 2x1",
|
|
&image.NRGBA{
|
|
Rect: image.Rect(-1, -1, 1, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x10, 0x10, 0xff, 0x10, 0x10, 0x10, 0xff,
|
|
0x10, 0x10, 0x10, 0xff, 0x10, 0x10, 0x10, 0xff,
|
|
0x10, 0x10, 0x10, 0xff, 0x10, 0x10, 0x10, 0xff,
|
|
},
|
|
},
|
|
&image.NRGBA{
|
|
Rect: image.Rect(1, 1, 3, 2),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
|
|
},
|
|
},
|
|
0.5,
|
|
&image.NRGBA{
|
|
Rect: image.Rect(0, 0, 2, 3),
|
|
Stride: 2 * 4,
|
|
Pix: []uint8{
|
|
0x10, 0x10, 0x10, 0xff, 0x10, 0x10, 0x10, 0xff,
|
|
0x2c, 0x2c, 0x2c, 0xff, 0x2c, 0x2c, 0x2c, 0xff,
|
|
0x10, 0x10, 0x10, 0xff, 0x10, 0x10, 0x10, 0xff,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
for _, tc := range testCases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
got := OverlayCenter(tc.src1, tc.src2, 0.5)
|
|
if !compareNRGBA(got, tc.want, 0) {
|
|
t.Fatalf("got result %#v want %#v", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|