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Re: [ft-devel] How can I directly rendering bitmap object on my specifie
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From: |
Werner LEMBERG |
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Subject: |
Re: [ft-devel] How can I directly rendering bitmap object on my specified memory? |
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Date: |
Wed, 05 Dec 2007 07:21:37 +0100 (CET) |
> As I known, Freetype2 rendering process as below:
>
> Glyph
> ------ FT_Glyph_To_Bitmap()----->
> Bitmap object (on a memory cache)
> ------ my_draw_bitmap()----->
> Display area
>
> Because I used display area is a memory which as same as bitmap used
> memory. I want directly rendering bitmap object on my specified
> memory for optimizes rendering speed, this process is:
>
> Glyph
> ------ FT_Glyph_To_Bitmap()----->
> Display area (specified display memory)
You wan't to omit the cache? How shall this be faster?
What about using mmap()? As far as I know, this is exactly what you
need, namely mapping the device's display area into memory.
Werner