nanogui: Non-clipping bitmap output
Subject:
Re: [nanogui] Non-clipping bitmap output
From:
"Greg Haerr" ####@####.####
Date:
26 Sep 2001 20:46:16 -0000
Message-Id: <019601c146cd$fe5cd020$6817dbd0@censoft.com>
: I'd like to optimize the non-clipping text string case so that when
: a text string is not clipped I can send a binary bitmap for that
rectangular
: region in a single operation.
:
: Some work was started in a NOTUSED portion of gen_drawtext. I'm going
: to try to pick up on that. Ideally I'd like to build the text string
: bitmap "locally" and then use gen_drawbitmap to blast out the whole
: string in one chunk, but for
: starters I'll do the character at a time begun there.
Yes, building a single bitmap and drawing it once should speed things
up. Just remember that the font engine allows different renderers,
so, to do this correctly, we may need an entry point that allows
the renderer to draw into a known location of a passed BITMAP.
Or, if the renderer supports string rendering, then the entire renderering
may have to happen at the lowest level.
:
: Is there any further work on this?
Not that I'm aware of. Let me know how I can help.
Regards,
Greg
:
: Peter
:
: --
: Peter Dufault ####@####.#### Realtime development, Machine control,
: HD Associates, Inc. Fail-Safe systems, Agency approval
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