Re: OpenGL-based framebuffer concepts

[Antonino A. Daplas]

Jon Smirl wrote:
> On 5/31/06, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
>> On Wed, 31 May 2006, Antonino A. Daplas wrote:
>> > And it can be done.  The matrox driver in 2.4 can do just that.  For
>> 2.6,
>> > we have tileblitting which is a drawing method that can handle pure
>> text.
>> > None of the drivers use this, but vgacon can be trivially written as a
>> > framebuffer driver that uses tileblitting (instead of the default
>> bitblit).
>> >
>> > I believe that there was a vgafb driver before that does exactly
>> what you
>> > want.
>>
>> Indeed. Early 2.1.x had a vgafb and an fbcon-vga, before vgacon
>> existed in its
>> current form.
> 
> Moving back to a vgafb with text mode support in fbcon would be one
> way to eliminate a few of the way too many graphics drivers. I don't
> see any real downside side to doing this, does any one else see any
> problems?

An optional vgafb driver is probably a good idea. It's downside
is probably slower performance.

I may start work on a userland fb driver that can support both
graphics and text mode this weekend.

Tony
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