nanogui: Thread: Re: [Nano-X] FreeType2 via Framebuffer.

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Subject: Re: [Nano-X] FreeType2 via Framebuffer.
From: "Greg Haerr" ####@####.####
Date: 29 Apr 2010 03:40:14 -0000
Message-Id: <035a01cae74d$a929afe0$6564a8c0@winXP>

Hi Vladimir - 

I looked over the X11 framebuffer emulator, and got rather
excited about it.  I have ported it to the nano-X build tree,
and it now works for 1, 2, 4 and 8bpp, with reverse bit order
as well, so you should have no problem using it to test
with any of the palette mode drivers, including fblin1rev.c.
See ChangeLog for instructions on using and building
bin/fbe.  (bin/fbe -c -r -d1 will work for you)

In addition I also modified the nano-X fb driver scr_fb.c
to allow a connection to the fbe emulator when the
environment var FRAMEBUFFER=/tmp/fb0.  A default
BPP will be used from scr_fb.c, allowing easy
testing of all the palette mode drivers, including reverse
bit order.  This uses your framebuffer hack, but cleaned
up considerably! 

I also cleaned up and sped up all the palette fb drivers,
by removing asserts and extra variables.  This should
show some speed improvement.

Thanks for sending me this information!



  ----- Original Message ----- 
  From: ???????? ???????? 
  To: Greg Haerr 
  Sent: Monday, April 26, 2010 1:43 AM
  Subject: Re: [Nano-X] FreeType2 via Framebuffer.

  Hello, Grag!

  There is the bugfixed version of fblin1rev.c in the attachment (fblin1rev.c.tar.gz).

  File "simple_fbemu.tar.gz" contains simple FB emulator (Qt sources and x86 Linux binaries). 
  You may need to install Qt4 libraries or sdk to use this emulator.
  Archive also contains modified version of src_fb.c (search HACK_FRAMEBUFFER).
  export FRAMEBUFFER=/tmp/fb0
  run nano-X

  You can also try fbe, it use X11 API directly (
  But i was unable to make it works with Nano-X.

  Thank you!

  Best regards, 

  2010/4/25 Greg Haerr ####@####.####

    Vladimir - 

    Please send me the bugfixed version of fblin1rev.c,
    and I'll add it to git, thanks!

    Are you running the framebuffer emulator under X11?  If so,
    perhaps I could see if I could run it, and then get your problem



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