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69 lines
1.5 KiB
69 lines
1.5 KiB
// Copyright 2011 The Graphics-Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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package graphics |
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import ( |
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"bytes" |
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"code.google.com/p/graphics-go/graphics/graphicstest" |
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"image" |
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"image/color" |
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"testing" |
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) |
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type transformOneColorTest struct { |
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desc string |
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dstWidth int |
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dstHeight int |
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srcWidth int |
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srcHeight int |
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opt interface{} |
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src []uint8 |
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res []uint8 |
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} |
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func (oc *transformOneColorTest) newSrc() *image.RGBA { |
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b := image.Rect(0, 0, oc.srcWidth, oc.srcHeight) |
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src := image.NewRGBA(b) |
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i := 0 |
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for y := b.Min.Y; y < b.Max.Y; y++ { |
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for x := b.Min.X; x < b.Max.X; x++ { |
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src.SetRGBA(x, y, color.RGBA{ |
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R: oc.src[i], |
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G: oc.src[i], |
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B: oc.src[i], |
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A: oc.src[i], |
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}) |
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i++ |
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} |
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} |
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return src |
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} |
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func (oc *transformOneColorTest) newDst() *image.RGBA { |
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return image.NewRGBA(image.Rect(0, 0, oc.dstWidth, oc.dstHeight)) |
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} |
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func checkTransformTest(t *testing.T, oc *transformOneColorTest, dst *image.RGBA) bool { |
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for ch := 0; ch < 4; ch++ { |
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i := 0 |
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res := make([]byte, len(oc.res)) |
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for y := 0; y < oc.dstHeight; y++ { |
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for x := 0; x < oc.dstWidth; x++ { |
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off := (y-dst.Rect.Min.Y)*dst.Stride + (x-dst.Rect.Min.X)*4 |
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res[i] = dst.Pix[off+ch] |
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i++ |
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} |
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} |
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if !bytes.Equal(res, oc.res) { |
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got := graphicstest.SprintBox(res, oc.dstWidth, oc.dstHeight) |
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want := graphicstest.SprintBox(oc.res, oc.dstWidth, oc.dstHeight) |
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t.Errorf("%s: ch=%d\n got\n%s\n want\n%s", oc.desc, ch, got, want) |
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return false |
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} |
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} |
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return true |
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}
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