Hello. I would like to know when do functions such as FT_Glyph_To_Bitmap return bitmap with positive and negative pitch. In my experience, most time the pitch is positive, meaning a top-down flow. I also looked up source code. In ftbitmap.c, I found "if ( pitch < 0 ) pitch = -pitch;", also indicating a positive pitch. My project mostly deals with TrueType fonts, so if I know the pitch is always positive in this situation, I could simplify the algorithm.
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