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[Freetype] Transformation Matrix has no effect of SFNT embedded bitmaps
From: |
Farhad Khalafi |
Subject: |
[Freetype] Transformation Matrix has no effect of SFNT embedded bitmaps |
Date: |
Tue, 19 Oct 2004 11:29:17 -0600 |
When TT_CONFIG_OPTION_EMBEDDED_BITMAPS is selected and a rotation matrix
is defined using FT_Set_Transform() function, for certain font sizes,
the matrix is ignored.
My understanding is that if an embedded SFNT bitmap is found, then it is
used in TT_Load_Glyph(). The outline array is then empty and
transformation is not applied. I used MSGothic.TTC with glyph index of
14818 for my test.
If I comment out TT_CONFIG_OPTION_EMBEDDED_BITMAPS in the option file,
then the problem is resolved at all font sizes.
My question is:
What are the implications of disabling the embedded bitmaps? Are there
always outline-based alternatives to the bitmaps, or is this going to
restrict supporting of certain font files?
I use the latest released version (2.1.9) of FreeType library.
Any clarification will be appreciated.
Thanks,
Farhad
- [Freetype] Transformation Matrix has no effect of SFNT embedded bitmaps,
Farhad Khalafi <=