Parse FontBBox in type1font. #30088
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Parse FontBBox in type1font. #30088
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... instead of having to go through ft2font in createType1Descriptor just to extract the font bbox, ascender and descender. FontBBox is gauranteed to exist in the type1 font definition by the standard; its parsing as a size-4 array matches freetype's behavior (see ps_parser_load_field); and using bbox entries as ascender and descender also matches freetype's behavior (T1_Face_Init directly assigns `root->ascender = (FT_Short)(root->bbox.yMax)` and likewise for the descender; see also the docs for ascender and descender in FT_FaceRec).
oscargus
approved these changes
May 29, 2025
QuLogic
approved these changes
May 30, 2025
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... instead of having to go through ft2font in createType1Descriptor just to extract the font bbox, ascender and descender.
FontBBox is gauranteed to exist in the type1 font definition by the standard; its parsing as a size-4 array matches freetype's behavior (see ps_parser_load_field); and using bbox entries as ascender and descender also matches freetype's behavior (T1_Face_Init directly assigns
root->ascender = (FT_Short)(root->bbox.yMax)and likewise for the descender; see also the docs for ascender and descender in FT_FaceRec).PR summary
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