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[color] Fix documentation re UPEM vs PPEM 

Fixes https://github.com/harfbuzz/harfbuzz/issues/3826
This commit is contained in:
Behdad Esfahbod 2022-09-21 13:27:12 -06:00
parent 56c4670935
commit b78d4b1e58
1 changed files with 2 additions and 2 deletions
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4
src/hb-ot-color.cc
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@ -295,8 +295,8 @@ hb_ot_color_has_png (hb_face_t *face)
* @glyph: a glyph index
*
* Fetches the PNG image for a glyph. This function takes a font object, not a face object,
* as input. To get an optimally sized PNG blob, the UPEM value must be set on the @font
* object. If UPEM is unset, the blob returned will be the largest PNG available.
* as input. To get an optimally sized PNG blob, the PPEM values must be set on the @font
* object. If PPEM is unset, the blob returned will be the largest PNG available.
*
* If the glyph has no PNG image, the singleton empty blob is returned.
*