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Lock pixel format to 32bpp little-endian truecolour and reject other formats

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This commit is contained in:
Viktor Liu
2026-05-17 08:54:58 +02:00
parent b4f696272a
commit 2bed8b641b
3 changed files with 56 additions and 148 deletions
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21
client/vnc/server/rfb_bench_test.go
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@@ -84,26 +84,7 @@ func BenchmarkWritePixels(b *testing.B) {
b.SetBytes(int64(r.w * r.h * 4))
b.ReportAllocs()
for i := 0; i < b.N; i++ {
writePixels(dst, img, pf, rect{0, 0, r.w, r.h}, 4)
}
})
}
}
// BenchmarkWritePixelsScaled forces the general (non-fast) path by using a
// pixel format with non-255 channel maxes.
func BenchmarkWritePixelsScaled(b *testing.B) {
pf := defaultClientPixelFormat()
pf.rMax, pf.gMax, pf.bMax = 31, 63, 31 // 16bpp-ish; exercises the divide path
pf.bpp = 16
for _, r := range benchRects {
img := makeBenchImage(r.w, r.h, 1)
dst := make([]byte, r.w*r.h*2)
b.Run(r.name, func(b *testing.B) {
b.SetBytes(int64(r.w * r.h * 4))
b.ReportAllocs()
for i := 0; i < b.N; i++ {
writePixels(dst, img, pf, rect{0, 0, r.w, r.h}, 2)
writePixels(dst, img, pf, rect{0, 0, r.w, r.h})
}
})
}