private uint getImageFormatOffset(Table_EBLC.indexSubTable cIndexSubTable, uint nGlyphIndex, uint nStartGlyphIndex)
{
int nIndexFormat = cIndexSubTable.header.indexFormat;
uint nGlyphImageDataOffset = 0;
switch (nIndexFormat)
{
case 1:
{
nGlyphImageDataOffset = cIndexSubTable.header.imageDataOffset + ((Table_EBLC.indexSubTable1)cIndexSubTable).GetOffset((uint)(nGlyphIndex - nStartGlyphIndex));
break;
}
case 2:
{
nGlyphImageDataOffset = cIndexSubTable.header.imageDataOffset + 4 + bigGlyphMetrics.bufSize;
nGlyphImageDataOffset += (uint)(((Table_EBLC.indexSubTable2)cIndexSubTable).imageSize * (nGlyphIndex - nStartGlyphIndex));
break;
}
case 3:
{
nGlyphImageDataOffset = cIndexSubTable.header.imageDataOffset + ((Table_EBLC.indexSubTable3)cIndexSubTable).GetOffset((uint)(nGlyphIndex - nStartGlyphIndex));
break;
}
case 4:
{
Table_EBLC.indexSubTable4 ist = (Table_EBLC.indexSubTable4)cIndexSubTable;
for (uint i = 0; i < ist.numGlyphs; i++)
{
if (ist.GetCodeOffsetPair(i).glyphCode == nGlyphIndex)
{
nGlyphImageDataOffset = ist.header.imageDataOffset + ist.GetCodeOffsetPair(i).offset;
break;
}
}
break;
}
case 5:
{
for (uint i = 0; i < ((Table_EBLC.indexSubTable5)cIndexSubTable).numGlyphs; i++)
{
if (((Table_EBLC.indexSubTable5)cIndexSubTable).GetGlyphCode(i) == nGlyphIndex)
{
nGlyphImageDataOffset = cIndexSubTable.header.imageDataOffset + 4 + bigGlyphMetrics.bufSize + 4;
nGlyphImageDataOffset += (uint)(((Table_EBLC.indexSubTable5)cIndexSubTable).numGlyphs * 2);
nGlyphImageDataOffset += (uint)(i * ((Table_EBLC.indexSubTable5)cIndexSubTable).imageSize);
break;
}
}
break;
}
}
return(nGlyphImageDataOffset);
}
public uint getImageLength(Table_EBLC.indexSubTable cIndexSubTable, uint nGlyphIndex, uint nStartGlyphIndex, uint nImageOffset)
{
int nIndexFormat = cIndexSubTable.header.indexFormat;
uint nImageLength = 0;
switch (nIndexFormat)
{
case 1:
{
nImageLength = cIndexSubTable.header.imageDataOffset + ((Table_EBLC.indexSubTable1)cIndexSubTable).GetOffset((uint)((nGlyphIndex + 1) - nStartGlyphIndex));
nImageLength -= nImageOffset;
break;
}
case 2:
{
nImageLength = ((Table_EBLC.indexSubTable2)cIndexSubTable).imageSize;
break;
}
case 3:
{
nImageLength = cIndexSubTable.header.imageDataOffset + ((Table_EBLC.indexSubTable3)cIndexSubTable).GetOffset((uint)((nGlyphIndex + 1) - nStartGlyphIndex));
nImageLength -= nImageOffset;
break;
}
case 4:
{
Table_EBLC.indexSubTable4 ist = (Table_EBLC.indexSubTable4)cIndexSubTable;
for (uint i = 0; i < ist.numGlyphs; i++)
{
if (ist.GetCodeOffsetPair(i).glyphCode == nGlyphIndex)
{
nImageLength = ist.header.imageDataOffset + ist.GetCodeOffsetPair(i + 1).offset;
nImageLength -= nImageOffset;
}
}
break;
}
case 5:
{
nImageLength = ((Table_EBLC.indexSubTable5)cIndexSubTable).imageSize;
break;
}
}
return(nImageLength);
}
