/// <summary>
/// 创建混淆QR Code，第二个QR Code将藏在第一个里面。
/// </summary>
/// <param name="data1"></param>
/// <param name="data2"></param>
/// <returns></returns>
public static (QRCode QRCode1, QRCode QRCode2, bool Swap) CreateObfuscatedQRCode(byte[] data1, byte[] data2)
{
for (int level = 0; level < 4; level++)
{
var eccLevel = (ECCLevel)level;
var mode1 = DataEncoder.GuessMode(data1);
while (true)
{
var mode2 = DataEncoder.GuessMode(data2);
while (true)
{
var ver1 = DataEncoder.GuessVersion(data1.Length, eccLevel, mode1);
var ver2 = DataEncoder.GuessVersion(data2.Length, eccLevel, mode2);
var ver = Math.Max(ver1, ver2);
for (; ver <= 40; ver++)
{
for (int mask1 = 0; mask1 < 8; mask1++)
{
var qr1 = QRCode.AnalysisOverlay(ver, mode1, data1, eccLevel, (MaskVersion)mask1);
for (int mask2 = 0; mask2 < 8; mask2++)
{
var qr2 = QRCode.AnalysisOverlay(ver, mode2, data2, eccLevel, (MaskVersion)mask2);
var foverlay = OverlayAnalyzer.IsOverlay(qr1.FormatBinary, qr2.FormatBinary);
if (foverlay)
{
var overlay = OverlayAnalyzer.IsOverlay(qr1.AnalysisGroup, qr2.AnalysisGroup, qr1.MaxErrorAllowBytes + qr2.MaxErrorAllowBytes);
if (overlay)
{
var(f1, f2) = OverlayAnalyzer.FormatOverlay(qr1.FormatBinary, qr2.FormatBinary);
OverlayAnalyzer.Overlay(qr1.AnalysisGroup, qr2.AnalysisGroup, qr1.MaxErrorAllowBytes, qr2.MaxErrorAllowBytes);
qr1.WriteFormatInformation(f1);
qr2.WriteFormatInformation(f2);
// if (!OverlayAnalyzer.IsOverlay(qr1.AnalysisGroup, qr2.AnalysisGroup, 0)) throw new InvalidOperationException();
qr1.Flush();
qr2.Flush();
return(qr1, qr2, false);
}
}
foverlay = OverlayAnalyzer.IsOverlay(qr2.FormatBinary, qr1.FormatBinary);
if (foverlay)
{
var overlay = OverlayAnalyzer.IsOverlay(qr2.AnalysisGroup, qr1.AnalysisGroup, qr1.MaxErrorAllowBytes + qr2.MaxErrorAllowBytes);
if (overlay)
{
var(f2, f1) = OverlayAnalyzer.FormatOverlay(qr2.FormatBinary, qr1.FormatBinary);
OverlayAnalyzer.Overlay(qr2.AnalysisGroup, qr1.AnalysisGroup, qr2.MaxErrorAllowBytes, qr1.MaxErrorAllowBytes);
qr1.WriteFormatInformation(f1);
qr2.WriteFormatInformation(f2);
// if (!OverlayAnalyzer.IsOverlay(qr2.AnalysisGroup, qr1.AnalysisGroup, 0)) throw new InvalidOperationException();
qr1.Flush();
qr2.Flush();
return(qr2, qr1, true);
}
}
}
}
}
if (!NextMode(mode2, out mode2))
{
break;
}
}
if (!NextMode(mode1, out mode1))
{
break;
}
}
}
return(default);
public QRSurface(QRCode qrCode, int cellWidth)
{
QRCode = qrCode;
CellWidth = cellWidth;
}
