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Diffstat (limited to 'Godeps/_workspace/src/github.com/nfnt/resize/ycc_test.go')
-rw-r--r--Godeps/_workspace/src/github.com/nfnt/resize/ycc_test.go214
1 files changed, 0 insertions, 214 deletions
diff --git a/Godeps/_workspace/src/github.com/nfnt/resize/ycc_test.go b/Godeps/_workspace/src/github.com/nfnt/resize/ycc_test.go
deleted file mode 100644
index 54d53d157..000000000
--- a/Godeps/_workspace/src/github.com/nfnt/resize/ycc_test.go
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
-Copyright (c) 2014, Charlie Vieth <charlie.vieth@gmail.com>
-
-Permission to use, copy, modify, and/or distribute this software for any purpose
-with or without fee is hereby granted, provided that the above copyright notice
-and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
-REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
-INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
-OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
-TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
-THIS SOFTWARE.
-*/
-
-package resize
-
-import (
- "image"
- "image/color"
- "testing"
-)
-
-type Image interface {
- image.Image
- SubImage(image.Rectangle) image.Image
-}
-
-func TestImage(t *testing.T) {
- testImage := []Image{
- newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio420),
- newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio422),
- newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio440),
- newYCC(image.Rect(0, 0, 10, 10), image.YCbCrSubsampleRatio444),
- }
- for _, m := range testImage {
- if !image.Rect(0, 0, 10, 10).Eq(m.Bounds()) {
- t.Errorf("%T: want bounds %v, got %v",
- m, image.Rect(0, 0, 10, 10), m.Bounds())
- continue
- }
- m = m.SubImage(image.Rect(3, 2, 9, 8)).(Image)
- if !image.Rect(3, 2, 9, 8).Eq(m.Bounds()) {
- t.Errorf("%T: sub-image want bounds %v, got %v",
- m, image.Rect(3, 2, 9, 8), m.Bounds())
- continue
- }
- // Test that taking an empty sub-image starting at a corner does not panic.
- m.SubImage(image.Rect(0, 0, 0, 0))
- m.SubImage(image.Rect(10, 0, 10, 0))
- m.SubImage(image.Rect(0, 10, 0, 10))
- m.SubImage(image.Rect(10, 10, 10, 10))
- }
-}
-
-func TestConvertYCbCr(t *testing.T) {
- testImage := []Image{
- image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio420),
- image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio422),
- image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio440),
- image.NewYCbCr(image.Rect(0, 0, 50, 50), image.YCbCrSubsampleRatio444),
- }
-
- for _, img := range testImage {
- m := img.(*image.YCbCr)
- for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ {
- for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ {
- yi := m.YOffset(x, y)
- ci := m.COffset(x, y)
- m.Y[yi] = uint8(16*y + x)
- m.Cb[ci] = uint8(y + 16*x)
- m.Cr[ci] = uint8(y + 16*x)
- }
- }
-
- // test conversion from YCbCr to ycc
- yc := imageYCbCrToYCC(m)
- for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ {
- for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ {
- ystride := 3 * (m.Rect.Max.X - m.Rect.Min.X)
- xstride := 3
- yi := m.YOffset(x, y)
- ci := m.COffset(x, y)
- si := (y * ystride) + (x * xstride)
- if m.Y[yi] != yc.Pix[si] {
- t.Errorf("Err Y - found: %d expected: %d x: %d y: %d yi: %d si: %d",
- m.Y[yi], yc.Pix[si], x, y, yi, si)
- }
- if m.Cb[ci] != yc.Pix[si+1] {
- t.Errorf("Err Cb - found: %d expected: %d x: %d y: %d ci: %d si: %d",
- m.Cb[ci], yc.Pix[si+1], x, y, ci, si+1)
- }
- if m.Cr[ci] != yc.Pix[si+2] {
- t.Errorf("Err Cr - found: %d expected: %d x: %d y: %d ci: %d si: %d",
- m.Cr[ci], yc.Pix[si+2], x, y, ci, si+2)
- }
- }
- }
-
- // test conversion from ycc back to YCbCr
- ym := yc.YCbCr()
- for y := m.Rect.Min.Y; y < m.Rect.Max.Y; y++ {
- for x := m.Rect.Min.X; x < m.Rect.Max.X; x++ {
- yi := m.YOffset(x, y)
- ci := m.COffset(x, y)
- if m.Y[yi] != ym.Y[yi] {
- t.Errorf("Err Y - found: %d expected: %d x: %d y: %d yi: %d",
- m.Y[yi], ym.Y[yi], x, y, yi)
- }
- if m.Cb[ci] != ym.Cb[ci] {
- t.Errorf("Err Cb - found: %d expected: %d x: %d y: %d ci: %d",
- m.Cb[ci], ym.Cb[ci], x, y, ci)
- }
- if m.Cr[ci] != ym.Cr[ci] {
- t.Errorf("Err Cr - found: %d expected: %d x: %d y: %d ci: %d",
- m.Cr[ci], ym.Cr[ci], x, y, ci)
- }
- }
- }
- }
-}
-
-func TestYCbCr(t *testing.T) {
- rects := []image.Rectangle{
- image.Rect(0, 0, 16, 16),
- image.Rect(1, 0, 16, 16),
- image.Rect(0, 1, 16, 16),
- image.Rect(1, 1, 16, 16),
- image.Rect(1, 1, 15, 16),
- image.Rect(1, 1, 16, 15),
- image.Rect(1, 1, 15, 15),
- image.Rect(2, 3, 14, 15),
- image.Rect(7, 0, 7, 16),
- image.Rect(0, 8, 16, 8),
- image.Rect(0, 0, 10, 11),
- image.Rect(5, 6, 16, 16),
- image.Rect(7, 7, 8, 8),
- image.Rect(7, 8, 8, 9),
- image.Rect(8, 7, 9, 8),
- image.Rect(8, 8, 9, 9),
- image.Rect(7, 7, 17, 17),
- image.Rect(8, 8, 17, 17),
- image.Rect(9, 9, 17, 17),
- image.Rect(10, 10, 17, 17),
- }
- subsampleRatios := []image.YCbCrSubsampleRatio{
- image.YCbCrSubsampleRatio444,
- image.YCbCrSubsampleRatio422,
- image.YCbCrSubsampleRatio420,
- image.YCbCrSubsampleRatio440,
- }
- deltas := []image.Point{
- image.Pt(0, 0),
- image.Pt(1000, 1001),
- image.Pt(5001, -400),
- image.Pt(-701, -801),
- }
- for _, r := range rects {
- for _, subsampleRatio := range subsampleRatios {
- for _, delta := range deltas {
- testYCbCr(t, r, subsampleRatio, delta)
- }
- }
- if testing.Short() {
- break
- }
- }
-}
-
-func testYCbCr(t *testing.T, r image.Rectangle, subsampleRatio image.YCbCrSubsampleRatio, delta image.Point) {
- // Create a YCbCr image m, whose bounds are r translated by (delta.X, delta.Y).
- r1 := r.Add(delta)
- img := image.NewYCbCr(r1, subsampleRatio)
-
- // Initialize img's pixels. For 422 and 420 subsampling, some of the Cb and Cr elements
- // will be set multiple times. That's OK. We just want to avoid a uniform image.
- for y := r1.Min.Y; y < r1.Max.Y; y++ {
- for x := r1.Min.X; x < r1.Max.X; x++ {
- yi := img.YOffset(x, y)
- ci := img.COffset(x, y)
- img.Y[yi] = uint8(16*y + x)
- img.Cb[ci] = uint8(y + 16*x)
- img.Cr[ci] = uint8(y + 16*x)
- }
- }
-
- m := imageYCbCrToYCC(img)
-
- // Make various sub-images of m.
- for y0 := delta.Y + 3; y0 < delta.Y+7; y0++ {
- for y1 := delta.Y + 8; y1 < delta.Y+13; y1++ {
- for x0 := delta.X + 3; x0 < delta.X+7; x0++ {
- for x1 := delta.X + 8; x1 < delta.X+13; x1++ {
- subRect := image.Rect(x0, y0, x1, y1)
- sub := m.SubImage(subRect).(*ycc)
-
- // For each point in the sub-image's bounds, check that m.At(x, y) equals sub.At(x, y).
- for y := sub.Rect.Min.Y; y < sub.Rect.Max.Y; y++ {
- for x := sub.Rect.Min.X; x < sub.Rect.Max.X; x++ {
- color0 := m.At(x, y).(color.YCbCr)
- color1 := sub.At(x, y).(color.YCbCr)
- if color0 != color1 {
- t.Errorf("r=%v, subsampleRatio=%v, delta=%v, x=%d, y=%d, color0=%v, color1=%v",
- r, subsampleRatio, delta, x, y, color0, color1)
- return
- }
- }
- }
- }
- }
- }
- }
-}
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