public AtlusEncoding(string tableName)
{
var tableFilePath = Path.Combine(sCharsetsBaseDirectoryPath, $"{tableName}.tsv");
if (!File.Exists(tableFilePath))
{
throw new ArgumentException($"Unknown encoding: {tableName} ({tableFilePath})", nameof(tableName));
}
var charTable = ReadCharsetFile(tableFilePath);
// build character to codepoint table
mCharToCodePoint = new Dictionary <string, CodePoint>(charTable.Count);
// add the ascii range seperately
for (int charIndex = 0; charIndex < ASCII_RANGE + 1; charIndex++)
{
if (!mCharToCodePoint.ContainsKey(charTable[charIndex]))
{
mCharToCodePoint[charTable[charIndex]] = new CodePoint(0, (byte)charIndex);
}
}
// add extended characters, but don't re-include the ascii range
for (int charIndex = ASCII_RANGE + 1; charIndex < charTable.Count; charIndex++)
{
int glyphIndex = charIndex + CHAR_TO_GLYPH_INDEX_OFFSET;
int tableIndex = (glyphIndex / GLYPH_TABLE_SIZE) - 1;
int tableRelativeIndex = glyphIndex - (tableIndex * GLYPH_TABLE_SIZE);
if (!mCharToCodePoint.ContainsKey(charTable[charIndex]))
{
mCharToCodePoint[charTable[charIndex]] = new CodePoint((byte)(GLYPH_TABLE_INDEX_MARKER | tableIndex), (byte)(tableRelativeIndex));
}
}
// build code point to character lookup table
mCodePointToChar = new Dictionary <CodePoint, string>(charTable.Count);
// add the ascii range seperately
for (int charIndex = 0; charIndex < ASCII_RANGE + 1; charIndex++)
{
mCodePointToChar[new CodePoint(0, (byte)charIndex)] = charTable[charIndex];
}
// add extended characters, and make sure to include the ascii range again due to overlap
for (int charIndex = 0x20; charIndex < charTable.Count; charIndex++)
{
int glyphIndex = charIndex + CHAR_TO_GLYPH_INDEX_OFFSET;
int tableIndex = (glyphIndex / GLYPH_TABLE_SIZE) - 1;
int tableRelativeIndex = glyphIndex - (tableIndex * GLYPH_TABLE_SIZE);
mCodePointToChar[new CodePoint((byte)(GLYPH_TABLE_INDEX_MARKER | tableIndex), (byte)(tableRelativeIndex))] = charTable[charIndex];
}
}
protected AtlusEncoding()
{
if (sIsInitialized)
{
return;
}
// build character to codepoint table
sCharToCodePoint = new Dictionary <char, CodePoint>(CharTable.Length);
// add the ascii range seperately
for (int charIndex = 0; charIndex < ASCII_RANGE + 1; charIndex++)
{
if (!sCharToCodePoint.ContainsKey(CharTable[charIndex]))
{
sCharToCodePoint[CharTable[charIndex]] = new CodePoint(0, ( byte )charIndex);
}
}
// add extended characters, but don't re-include the ascii range
for (int charIndex = ASCII_RANGE + 1; charIndex < CharTable.Length; charIndex++)
{
int glyphIndex = charIndex + CHAR_TO_GLYPH_INDEX_OFFSET;
int tableIndex = (glyphIndex / GLYPH_TABLE_SIZE) - 1;
int tableRelativeIndex = glyphIndex - (tableIndex * GLYPH_TABLE_SIZE);
if (!sCharToCodePoint.ContainsKey(CharTable[charIndex]))
{
sCharToCodePoint[CharTable[charIndex]] = new CodePoint(( byte )(GLYPH_TABLE_INDEX_MARKER | tableIndex), ( byte )(tableRelativeIndex));
}
}
// build code point to character lookup table
sCodePointToChar = new Dictionary <CodePoint, char>(CharTable.Length);
// add the ascii range seperately
for (int charIndex = 0; charIndex < ASCII_RANGE + 1; charIndex++)
{
sCodePointToChar[new CodePoint(0, ( byte )charIndex)] = CharTable[charIndex];
}
// add extended characters, and make sure to include the ascii range again due to overlap
for (int charIndex = 0x20; charIndex < CharTable.Length; charIndex++)
{
int glyphIndex = charIndex + CHAR_TO_GLYPH_INDEX_OFFSET;
int tableIndex = (glyphIndex / GLYPH_TABLE_SIZE) - 1;
int tableRelativeIndex = glyphIndex - (tableIndex * GLYPH_TABLE_SIZE);
sCodePointToChar[new CodePoint(( byte )(GLYPH_TABLE_INDEX_MARKER | tableIndex), ( byte )(tableRelativeIndex))] = CharTable[charIndex];
}
sIsInitialized = true;
}