Update nfnt/resize library to the most recent version (as of July 20)

4 files changed, 99 insertions, 9 deletions

diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index 8b30d0478..86ed9e0cf 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -100,7 +100,7 @@
 		},
 		{
 			"ImportPath": "github.com/nfnt/resize",
-			"Rev": "f2d1b73023c55bdfb4fa2ed385d2bec95bce3692"
+			"Rev": "dc93e1b98c579d90ee2fa15c1fd6dac34f6e7899"
 		},
 		{
 			"ImportPath": "github.com/stretchr/objx",
diff --git a/Godeps/_workspace/src/github.com/nfnt/resize/converter.go b/Godeps/_workspace/src/github.com/nfnt/resize/converter.go
index 84bd284ba..b3dd06b8d 100644
--- a/Godeps/_workspace/src/github.com/nfnt/resize/converter.go
+++ b/Godeps/_workspace/src/github.com/nfnt/resize/converter.go
@@ -131,11 +131,11 @@ func resizeRGBA(in *image.RGBA, out *image.NRGBA, scale float64, coeffs []int16,
 
 					// reverse alpha-premultiplication.
 					if a != 0 {
-						r *= 0xffff
+						r *= 0xff
 						r /= a
-						g *= 0xffff
+						g *= 0xff
 						g /= a
-						b *= 0xffff
+						b *= 0xff
 						b /= a
 					}
 
diff --git a/Godeps/_workspace/src/github.com/nfnt/resize/resize.go b/Godeps/_workspace/src/github.com/nfnt/resize/resize.go
index 4d4ff6e3e..c1672432e 100644
--- a/Godeps/_workspace/src/github.com/nfnt/resize/resize.go
+++ b/Godeps/_workspace/src/github.com/nfnt/resize/resize.go
@@ -167,7 +167,7 @@ func Resize(width, height uint, img image.Image, interp InterpolationFunction) i
 		// accessing the YCbCr arrays in a tight loop is slow.
 		// converting the image to ycc increases performance by 2x.
 		temp := newYCC(image.Rect(0, 0, input.Bounds().Dy(), int(width)), input.SubsampleRatio)
-		result := newYCC(image.Rect(0, 0, int(width), int(height)), input.SubsampleRatio)
+		result := newYCC(image.Rect(0, 0, int(width), int(height)), image.YCbCrSubsampleRatio444)
 
 		coeffs, offset, filterLength := createWeights8(temp.Bounds().Dy(), taps, blur, scaleX, kernel)
 		in := imageYCbCrToYCC(input)
@@ -409,7 +409,7 @@ func resizeNearest(width, height uint, scaleX, scaleY float64, img image.Image,
 		// accessing the YCbCr arrays in a tight loop is slow.
 		// converting the image to ycc increases performance by 2x.
 		temp := newYCC(image.Rect(0, 0, input.Bounds().Dy(), int(width)), input.SubsampleRatio)
-		result := newYCC(image.Rect(0, 0, int(width), int(height)), input.SubsampleRatio)
+		result := newYCC(image.Rect(0, 0, int(width), int(height)), image.YCbCrSubsampleRatio444)
 
 		coeffs, offset, filterLength := createWeightsNearest(temp.Bounds().Dy(), taps, blur, scaleX)
 		in := imageYCbCrToYCC(input)
diff --git a/Godeps/_workspace/src/github.com/nfnt/resize/resize_test.go b/Godeps/_workspace/src/github.com/nfnt/resize/resize_test.go
index ee31ac494..6f6911316 100644
--- a/Godeps/_workspace/src/github.com/nfnt/resize/resize_test.go
+++ b/Godeps/_workspace/src/github.com/nfnt/resize/resize_test.go
@@ -46,7 +46,7 @@ func Test_CorrectResize(t *testing.T) {
 	}
 }
 
-func Test_SameColor(t *testing.T) {
+func Test_SameColorWithRGBA(t *testing.T) {
 	img := image.NewRGBA(image.Rect(0, 0, 20, 20))
 	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
 		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
@@ -56,9 +56,99 @@ func Test_SameColor(t *testing.T) {
 	out := Resize(10, 10, img, Lanczos3)
 	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
 		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
-			color := img.At(x, y).(color.RGBA)
+			color := out.At(x, y).(color.NRGBA)
 			if color.R != 0x80 || color.G != 0x80 || color.B != 0x80 || color.A != 0xFF {
-				t.Fail()
+				t.Errorf("%+v", color)
+			}
+		}
+	}
+}
+
+func Test_SameColorWithNRGBA(t *testing.T) {
+	img := image.NewNRGBA(image.Rect(0, 0, 20, 20))
+	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
+		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
+			img.SetNRGBA(x, y, color.NRGBA{0x80, 0x80, 0x80, 0xFF})
+		}
+	}
+	out := Resize(10, 10, img, Lanczos3)
+	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
+		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
+			color := out.At(x, y).(color.NRGBA)
+			if color.R != 0x80 || color.G != 0x80 || color.B != 0x80 || color.A != 0xFF {
+				t.Errorf("%+v", color)
+			}
+		}
+	}
+}
+
+func Test_SameColorWithRGBA64(t *testing.T) {
+	img := image.NewRGBA64(image.Rect(0, 0, 20, 20))
+	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
+		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
+			img.SetRGBA64(x, y, color.RGBA64{0x8000, 0x8000, 0x8000, 0xFFFF})
+		}
+	}
+	out := Resize(10, 10, img, Lanczos3)
+	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
+		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
+			color := out.At(x, y).(color.NRGBA64)
+			if color.R != 0x8000 || color.G != 0x8000 || color.B != 0x8000 || color.A != 0xFFFF {
+				t.Errorf("%+v", color)
+			}
+		}
+	}
+}
+
+func Test_SameColorWithNRGBA64(t *testing.T) {
+	img := image.NewNRGBA64(image.Rect(0, 0, 20, 20))
+	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
+		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
+			img.SetNRGBA64(x, y, color.NRGBA64{0x8000, 0x8000, 0x8000, 0xFFFF})
+		}
+	}
+	out := Resize(10, 10, img, Lanczos3)
+	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
+		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
+			color := out.At(x, y).(color.NRGBA64)
+			if color.R != 0x8000 || color.G != 0x8000 || color.B != 0x8000 || color.A != 0xFFFF {
+				t.Errorf("%+v", color)
+			}
+		}
+	}
+}
+
+func Test_SameColorWithGray(t *testing.T) {
+	img := image.NewGray(image.Rect(0, 0, 20, 20))
+	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
+		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
+			img.SetGray(x, y, color.Gray{0x80})
+		}
+	}
+	out := Resize(10, 10, img, Lanczos3)
+	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
+		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
+			color := out.At(x, y).(color.Gray)
+			if color.Y != 0x80 {
+				t.Errorf("%+v", color)
+			}
+		}
+	}
+}
+
+func Test_SameColorWithGray16(t *testing.T) {
+	img := image.NewGray16(image.Rect(0, 0, 20, 20))
+	for y := img.Bounds().Min.Y; y < img.Bounds().Max.Y; y++ {
+		for x := img.Bounds().Min.X; x < img.Bounds().Max.X; x++ {
+			img.SetGray16(x, y, color.Gray16{0x8000})
+		}
+	}
+	out := Resize(10, 10, img, Lanczos3)
+	for y := out.Bounds().Min.Y; y < out.Bounds().Max.Y; y++ {
+		for x := out.Bounds().Min.X; x < out.Bounds().Max.X; x++ {
+			color := out.At(x, y).(color.Gray16)
+			if color.Y != 0x8000 {
+				t.Errorf("%+v", color)
 			}
 		}
 	}