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| author | David Turner <david@freetype.org> | 2020-07-14 16:12:29 +0200 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2020-07-14 16:25:59 +0200 |
| commit | 5fe7c044c25bba9dfae315ef56bacfc83976ddd0 (patch) | |
| tree | 27ada0f76898bb3f9f058203c332f609f389b58b | |
| parent | 95de21ab19cc5409ea09c9347f1d9b5e2cc2d332 (diff) | |
| download | freetype2-5fe7c044c25bba9dfae315ef56bacfc83976ddd0.tar.gz | |
freetype.h (FT_Set_Transform): Minor documentation update.
In order to mention the limited accuracy of `FT_Matrix' coefficients
and encourage client code to perform the transform themselves with
floating point values instead.
| -rw-r--r-- | include/freetype/freetype.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h index ba3950e63..71e22a1d6 100644 --- a/include/freetype/freetype.h +++ b/include/freetype/freetype.h @@ -3175,6 +3175,12 @@ FT_BEGIN_HEADER * A pointer to the translation vector. Use `NULL` for the null vector. * * @note: + * This function is provided as a convenience, but keep in mind that + * @FT_Matrix coefficients are only 16.16 fixed point values, which can + * limit the accuracy of the results. Using floating-point computations + * to perform the transform directly in client code instead will always + * yield better numbers. + * * The transformation is only applied to scalable image formats after the * glyph has been loaded. It means that hinting is unaltered by the * transformation and is performed on the character size given in the |