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-rw-r--r--vendor/github.com/disintegration/imaging/tools_test.go652
1 files changed, 652 insertions, 0 deletions
diff --git a/vendor/github.com/disintegration/imaging/tools_test.go b/vendor/github.com/disintegration/imaging/tools_test.go
new file mode 100644
index 000000000..2ac7b31d3
--- /dev/null
+++ b/vendor/github.com/disintegration/imaging/tools_test.go
@@ -0,0 +1,652 @@
+package imaging
+
+import (
+ "image"
+ "testing"
+)
+
+func TestCrop(t *testing.T) {
+ td := []struct {
+ desc string
+ src image.Image
+ r image.Rectangle
+ want *image.NRGBA
+ }{
+ {
+ "Crop 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.Rect(-1, 0, 1, 1),
+ &image.NRGBA{
+ Rect: image.Rect(0, 0, 2, 1),
+ Stride: 2 * 4,
+ Pix: []uint8{
+ 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00,
+ },
+ },
+ },
+ }
+ for _, d := range td {
+ got := Crop(d.src, d.r)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestCropCenter(t *testing.T) {
+ td := []struct {
+ desc string
+ src image.Image
+ w, h int
+ want *image.NRGBA
+ }{
+ {
+ "CropCenter 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,
+ },
+ },
+ 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 _, d := range td {
+ got := CropCenter(d.src, d.w, d.h)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestCropAnchor(t *testing.T) {
+ td := []struct {
+ desc 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 _, d := range td {
+ got := CropAnchor(d.src, d.w, d.h, d.anchor)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestPaste(t *testing.T) {
+ td := []struct {
+ desc 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,
+ },
+ },
+ },
+ }
+ for _, d := range td {
+ got := Paste(d.src1, d.src2, d.p)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestPasteCenter(t *testing.T) {
+ td := []struct {
+ desc 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 _, d := range td {
+ got := PasteCenter(d.src1, d.src2)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestOverlay(t *testing.T) {
+ td := []struct {
+ desc 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,
+ },
+ },
+ },
+ }
+ for _, d := range td {
+ got := Overlay(d.src1, d.src2, d.p, d.a)
+ want := d.want
+ if !compareNRGBA(got, want, 1) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
+
+func TestOverlayCenter(t *testing.T) {
+ td := []struct {
+ desc 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 _, d := range td {
+ got := OverlayCenter(d.src1, d.src2, 0.5)
+ want := d.want
+ if !compareNRGBA(got, want, 0) {
+ t.Errorf("test [%s] failed: %#v", d.desc, got)
+ }
+ }
+}
generated by cgit v1.2.3-1-g7c22 (git 2.25.1) at 2024-06-01 07:35:30 +0000