/// <summary>
/// The do mask.
/// </summary>
/// <param name="codeMask">
/// The mask.
/// </param>
private void DoMask(QrMask codeMask)
{
if (this.debugData != null)
{
this.debugData.Append(
"------------------ Step 9 ------------------\n- Executing mask on data pixels: "
+ BinaryExtensions.BinaryToString(codeMask.GetBits()) + "\n");
}
int counter = 0;
for (int i = 0; i < this.picture.GetLength(0); i++)
{
for (int j = 0; j < this.picture.GetLength(1); j++)
{
int x = this.picture.GetLength(0) - i - 1;
int y = this.picture.GetLength(1) - j - 1;
if (codeMask.Test(y, x) && (this.staticData[x, y] == false) && (this.picture[x, y] != QrPixel.Empty))
{
this.picture[x, y] = (this.picture[x, y] == QrPixel.White) ? QrPixel.Black : QrPixel.White;
counter++;
if ((this.breakPoint == QrBreakPoint.Mask) && (this.debugData != null))
{
this.picture[x, y] = QrPixel.Mask;
}
}
}
}
if (this.debugData != null)
{
this.debugData.Append("- Mask (" + codeMask + ") written to: " + counter + " pixels.\n\n");
}
}
/// <summary>
/// Calculate <c>QR</c> code format
/// </summary>
/// <param name="error">
/// The error code information.
/// </param>
/// <param name="mask">
/// The mask.
/// </param>
private void CalculateFormat(QrError error, QrMask mask)
{
// Get error bits
if (this.debugData != null)
{
this.debugData.Append("- Calculating format bits...\n");
}
// Get 5 bits of format information
int formatInfo = (QrErrorBits.GetBits(error) << 3) | BinaryExtensions.BinToDec(mask.GetBits());
if (this.debugData != null)
{
this.debugData.Append(
"- Format information error and mask bits: "
+ BinaryExtensions.BinaryToString(BinaryExtensions.DecToBin(formatInfo)) + "\n");
this.debugData.Append("- Calculating BCH (15,5) code for information bits...\n");
}
int bchCode = QrBoseChaudhuriHocquenghem.CalculateBch(formatInfo, QrConst.GenPolyFormat);
if (this.debugData != null)
{
this.debugData.Append(
"- BCH (15,5) error code: " + BinaryExtensions.BinaryToString(BinaryExtensions.DecToBin(bchCode))
+ "\n");
}
// Append BCH code to format info
formatInfo = (formatInfo << 10) | bchCode;
if (this.debugData != null)
{
this.debugData.Append(
"- Format information with appended BCH: "
+ BinaryExtensions.BinaryToString(BinaryExtensions.DecToBin(formatInfo)) + "\n");
this.debugData.Append(
"- Calculating XOR with format constant: "
+ BinaryExtensions.BinaryToString(BinaryExtensions.DecToBin(QrConst.ConstFormatXor)) + "\n");
}
formatInfo = formatInfo ^ QrConst.ConstFormatXor;
if (this.debugData != null)
{
this.debugData.Append(
"- Final format: " + BinaryExtensions.BinaryToString(BinaryExtensions.DecToBin(formatInfo, 15))
+ "\n");
}
List <bool> formatBits = BinaryExtensions.DecToBin(formatInfo, 15);
// Reverse, because our QRCode is inserting backwards
formatBits.Reverse();
foreach (bool t in formatBits)
{
this.output.Enqueue(t);
}
}