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Blending non-color glyphs

From: Behdad Esfahbod
Subject: Blending non-color glyphs
Date: Thu, 21 Nov 2019 08:28:29 -0500


I like to compose multiple glyphs in a bitmap without using any graphics library.  I found that FT_Bitmap_Blend() does exactly what I want except that if none of the glyphs are color, it still promotes the image to a color bitmap.

Would be nice to have another version that would only upgrade to color if necessary.


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