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38 lines
1016 B
Go
38 lines
1016 B
Go
//go:build !js && !ios && !android
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package server
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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// Both swizzle paths must agree: the word-at-a-time one runs on little-endian
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// targets, the byte one on the big-endian mips builds the client also ships.
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func TestSwizzleBGRAtoRGBA_PathsAgree(t *testing.T) {
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src := []byte{
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0x11, 0x22, 0x33, 0x00, // B G R pad
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0xAA, 0xBB, 0xCC, 0xFF,
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}
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want := []byte{
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0x33, 0x22, 0x11, 0xFF, // R G B opaque
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0xCC, 0xBB, 0xAA, 0xFF,
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}
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fast := make([]byte, len(src))
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swizzleBGRAtoRGBA(fast, src)
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assert.Equal(t, want, fast, "swizzle must produce opaque RGBA")
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portable := make([]byte, len(src))
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swizzleBGRAtoRGBABytes(portable, src)
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assert.Equal(t, want, portable, "the byte path must match the word path")
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}
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// dst and src may alias; in-place must give the same answer.
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func TestSwizzleBGRAtoRGBA_InPlace(t *testing.T) {
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buf := []byte{0x11, 0x22, 0x33, 0x00}
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swizzleBGRAtoRGBA(buf, buf)
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assert.Equal(t, []byte{0x33, 0x22, 0x11, 0xFF}, buf)
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}
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