readback_test.go RawHistoryFolder

1//go:build linux
2
3package vkdevice
4
5import (
6	"image"
7	"testing"
8)
9
10func TestSwizzleBGRA(t *testing.T) {
11	img := image.NewNRGBA(image.Rect(0, 0, 2, 1))
12	copy(img.Pix, []byte{0x00, 0x80, 0xff, 0xff, 0x10, 0x20, 0x30, 0x40})
13	SwizzleBGRA(img)
14	want := []byte{0xff, 0x80, 0x00, 0xff, 0x30, 0x20, 0x10, 0x40}
15	for i := range want {
16		if img.Pix[i] != want[i] {
17			t.Fatalf("pix = %x, want %x", img.Pix, want)
18		}
19	}
20}