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Change in behaviour when loading a glyphs from a font file in 2.13.2


From: Ciaran Kearney
Subject: Change in behaviour when loading a glyphs from a font file in 2.13.2
Date: Tue, 21 Jan 2025 13:52:01 +0000

Hello,

We notice a regression/unexpected change in the Freetype library from version 
2.13.2. Can you help clarify if it is a bug in the FreeType library?

When rendering the sample font file attached (sample_font_2.13.2.cff). The 
resulting image is incorrect.

2.13.0
2.13.2
[cid:image001.png@01DB6C09.1BBFC620]

[cid:image002.png@01DB6C09.1BBFC620]

When looking at the internal glyph structure after the load glyph function, we 
noticed that some of that fields were not populated (metrics, advance, outline 
(x & y)). We think that the missing information in 2.13.2. is resulting in the 
bad image above.

We are using the same flags, font file and loading the same glyph across both 
versions.
FT_Load_Glyph(face, 45, FT_LOAD_RENDER | FT_LOAD_TARGET_LIGHT | 
FT_LOAD_FORCE_AUTOHINT)


2.13.0
2.13.2
[cid:image003.png@01DB6C0A.29C7BBF0]
[cid:image004.png@01DB6C0A.29C7BBF0]

Thanks,
Ciaran Kearney



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PNG image

PNG image

PNG image

PNG image

Attachment: sample_font_2.13.2.cff
Description: sample_font_2.13.2.cff


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