diff options
Diffstat (limited to 'vendor/github.com/disintegration/imaging/resize_test.go')
-rw-r--r-- | vendor/github.com/disintegration/imaging/resize_test.go | 570 |
1 files changed, 570 insertions, 0 deletions
diff --git a/vendor/github.com/disintegration/imaging/resize_test.go b/vendor/github.com/disintegration/imaging/resize_test.go new file mode 100644 index 000000000..08d7f2d85 --- /dev/null +++ b/vendor/github.com/disintegration/imaging/resize_test.go @@ -0,0 +1,570 @@ +package imaging + +import ( + "image" + "testing" +) + +func TestResize(t *testing.T) { + td := []struct { + desc string + src image.Image + w, h int + f ResampleFilter + want *image.NRGBA + }{ + { + "Resize 2x2 1x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 1, 1, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x40, 0x40, 0x40, 0xc0}, + }, + }, + { + "Resize 2x2 2x2 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 2, 2, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 2, 2), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + }, + { + "Resize 3x1 1x1 nearest", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 2, 0), + Stride: 3 * 4, + Pix: []uint8{ + 0xff, 0x00, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 1, 1, + NearestNeighbor, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x00, 0xff, 0x00, 0xff}, + }, + }, + { + "Resize 2x2 0x4 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 0, 4, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 4, 4), + Stride: 4 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + }, + { + "Resize 2x2 4x0 linear", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 4, 0, + Linear, + &image.NRGBA{ + Rect: image.Rect(0, 0, 4, 4), + Stride: 4 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0xbf, 0x00, 0x00, 0xbf, 0xff, 0x00, 0x00, 0xff, + 0x00, 0x40, 0x00, 0x40, 0x30, 0x30, 0x10, 0x70, 0x8f, 0x10, 0x30, 0xcf, 0xbf, 0x00, 0x40, 0xff, + 0x00, 0xbf, 0x00, 0xbf, 0x10, 0x8f, 0x30, 0xcf, 0x30, 0x30, 0x8f, 0xef, 0x40, 0x00, 0xbf, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0xbf, 0x40, 0xff, 0x00, 0x40, 0xbf, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + }, + { + "Resize 0x0 1x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, -1, -1), + Stride: 0, + Pix: []uint8{}, + }, + 1, 1, + Box, + &image.NRGBA{}, + }, + { + "Resize 2x2 0x0 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 0, 0, + Box, + &image.NRGBA{}, + }, + { + "Resize 2x2 -1x0 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + -1, 0, + Box, + &image.NRGBA{}, + }, + } + for _, d := range td { + got := Resize(d.src, d.w, d.h, d.f) + want := d.want + if !compareNRGBA(got, want, 1) { + t.Errorf("test [%s] failed: %#v", d.desc, got) + } + } + + for i, filter := range []ResampleFilter{ + NearestNeighbor, + Box, + Linear, + Hermite, + MitchellNetravali, + CatmullRom, + BSpline, + Gaussian, + Lanczos, + Hann, + Hamming, + Blackman, + Bartlett, + Welch, + Cosine, + } { + src := image.NewNRGBA(image.Rect(-1, -1, 2, 3)) + got := Resize(src, 5, 6, filter) + want := image.NewNRGBA(image.Rect(0, 0, 5, 6)) + if !compareNRGBA(got, want, 0) { + t.Errorf("test [Resize all filters #%d] failed: %#v", i, got) + } + + if filter.Kernel != nil { + x := filter.Kernel(filter.Support + 0.0001) + if x != 0 { + t.Errorf("test [ResampleFilter edge cases #%d] failed: %f", i, x) + } + } + } + + bcs2 := bcspline(2, 1, 0) + if bcs2 != 0 { + t.Errorf("test [bcspline 2] failed: %f", bcs2) + } +} + +func TestFit(t *testing.T) { + td := []struct { + desc string + src image.Image + w, h int + f ResampleFilter + want *image.NRGBA + }{ + { + "Fit 2x2 1x10 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 1, 10, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x40, 0x40, 0x40, 0xc0}, + }, + }, + { + "Fit 2x2 10x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 10, 1, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x40, 0x40, 0x40, 0xc0}, + }, + }, + { + "Fit 2x2 10x10 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 10, 10, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 2, 2), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + }, + { + "Fit 0x0 1x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, -1, -1), + Stride: 0, + Pix: []uint8{}, + }, + 1, 1, + Box, + &image.NRGBA{}, + }, + { + "Fit 2x2 0x0 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + 0, 0, + Box, + &image.NRGBA{}, + }, + { + "Fit 2x2 -1x0 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 1), + Stride: 2 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + }, + }, + -1, 0, + Box, + &image.NRGBA{}, + }, + } + for _, d := range td { + got := Fit(d.src, d.w, d.h, d.f) + want := d.want + if !compareNRGBA(got, want, 0) { + t.Errorf("test [%s] failed: %#v", d.desc, got) + } + } +} + +func TestFill(t *testing.T) { + td := []struct { + desc string + src image.Image + w, h int + a Anchor + f ResampleFilter + want *image.NRGBA + }{ + { + "Fill 4x4 2x2 Center Nearest", + &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, + NearestNeighbor, + &image.NRGBA{ + Rect: image.Rect(0, 0, 2, 2), + Stride: 2 * 4, + Pix: []uint8{ + 0x14, 0x15, 0x16, 0x17, 0x1c, 0x1d, 0x1e, 0x1f, + 0x34, 0x35, 0x36, 0x37, 0x3c, 0x3d, 0x3e, 0x3f, + }, + }, + }, + { + "Fill 4x4 1x4 TopLeft Nearest", + &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, 4, + TopLeft, + NearestNeighbor, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 4), + Stride: 1 * 4, + Pix: []uint8{ + 0x00, 0x01, 0x02, 0x03, + 0x10, 0x11, 0x12, 0x13, + 0x20, 0x21, 0x22, 0x23, + 0x30, 0x31, 0x32, 0x33, + }, + }, + }, + { + "Fill 4x4 8x2 Bottom Nearest", + &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, + }, + }, + 8, 2, + Bottom, + NearestNeighbor, + &image.NRGBA{ + Rect: image.Rect(0, 0, 8, 2), + Stride: 8 * 4, + Pix: []uint8{ + 0x30, 0x31, 0x32, 0x33, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x3c, 0x3d, 0x3e, 0x3f, + 0x30, 0x31, 0x32, 0x33, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x3c, 0x3d, 0x3e, 0x3f, + }, + }, + }, + { + "Fill 4x4 2x8 Top Nearest", + &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, 8, + Top, + NearestNeighbor, + &image.NRGBA{ + Rect: image.Rect(0, 0, 2, 8), + Stride: 2 * 4, + Pix: []uint8{ + 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, + 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, + 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, + 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, + 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, + }, + }, + }, + { + "Fill 4x4 4x4 TopRight Box", + &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, + }, + }, + 4, 4, + TopRight, + Box, + &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, + }, + }, + }, + { + "Fill 4x4 0x4 Left Box", + &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, 4, + Left, + Box, + &image.NRGBA{}, + }, + { + "Fill 0x0 4x4 Right Box", + &image.NRGBA{}, + 4, 4, + Right, + Box, + &image.NRGBA{}, + }, + } + for _, d := range td { + got := Fill(d.src, d.w, d.h, d.a, d.f) + want := d.want + if !compareNRGBA(got, want, 0) { + t.Errorf("test [%s] failed: %#v", d.desc, got) + } + } +} + +func TestThumbnail(t *testing.T) { + td := []struct { + desc string + src image.Image + w, h int + f ResampleFilter + want *image.NRGBA + }{ + { + "Thumbnail 6x2 1x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 5, 1), + Stride: 6 * 4, + Pix: []uint8{ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }, + }, + 1, 1, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x40, 0x40, 0x40, 0xc0}, + }, + }, + { + "Thumbnail 2x6 1x1 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 1, 5), + Stride: 2 * 4, + Pix: []uint8{ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0xff, + 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + }, + }, + 1, 1, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 1, 1), + Stride: 1 * 4, + Pix: []uint8{0x40, 0x40, 0x40, 0xc0}, + }, + }, + { + "Thumbnail 1x3 2x2 box", + &image.NRGBA{ + Rect: image.Rect(-1, -1, 0, 2), + Stride: 1 * 4, + Pix: []uint8{ + 0x00, 0x00, 0x00, 0x00, + 0xff, 0x00, 0x00, 0xff, + 0xff, 0xff, 0xff, 0xff, + }, + }, + 2, 2, + Box, + &image.NRGBA{ + Rect: image.Rect(0, 0, 2, 2), + Stride: 2 * 4, + Pix: []uint8{ + 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, + 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, + }, + }, + }, + } + for _, d := range td { + got := Thumbnail(d.src, d.w, d.h, d.f) + want := d.want + if !compareNRGBA(got, want, 0) { + t.Errorf("test [%s] failed: %#v", d.desc, got) + } + } +} |