Dither
void Dither(uchar *destination, const uchar *source, int x,
fHalftone->Dither(ptr2, ptr, x, y, width);
fHalftone->Dither(ptr2, ptr, x, y, width);
fHalftone->Dither(&in_buffer[0], ptr, x, y, width);
GetHalftone()->Dither(fPlaneBuffers[plane], (const uchar*)source, x, y,
GetHalftone()->Dither(fCurrentLine, (const uchar*)source, x, y, GetWidth());
fHalftone->Dither(&in_buffer[0], ptr, x, y, width);
Dither(from, to);
void Dither(int32 fromRow, int32 toRow);
halftone.Dither(buffer, src, 0, y, width);