Re: Video subsystem draft

2005-11-26 Thread Vesa Jääskeläinen
Yoshinori K. Okuji wrote: > On Saturday 26 November 2005 01:28 am, Vesa Jääskeläinen wrote: >>> Compression might make the performance horrible, because PPF is very >>> optimized. >> When there is a caching implemented in a one day, it's only initial >> cost. So far I haven't seen performance probl

Re: Video subsystem draft

2005-11-26 Thread Vesa Jääskeläinen
Vincent Pelletier wrote: > By the way, there is already a font format handled by IEEE1275 > frame buffercards. > - From the standard : > > set-font ( addr width height advance min-char #glyphs -- ) > Set the current font as specified. > > So I think they can handle arbitrary-sized glyphs. > I ca

Re: Video subsystem draft

2005-11-26 Thread Vesa Jääskeläinen
Vincent Pelletier wrote: > By the way, I think we should start a discussion on the API common to > all architectures for framebuffer handling. Currently there is a terminal implementation that uses video subsystem to render screen. So basicly in every arch there must be a video driver if you want

PowerPC C++ kernel woes.

2005-11-26 Thread Andrei Warkentin
Hello, I've been trying to get some C++ running (now that I can print "Hello World" from OF, I'd like to move my "Hello World" C++ kernel to PowerPC), but it has been without much success. I've finally figured out that there are these small data sections which I was not taking care of in my

Re: Video subsystem draft

2005-11-26 Thread Yoshinori K. Okuji
On Saturday 26 November 2005 03:36 pm, Vincent Pelletier wrote: > By the way, there is already a font format handled by IEEE1275 > frame buffercards. > From the standard : > > set-font ( addr width height advance min-char #glyphs -- ) > Set the current font as specified. If my understanding is cor

Re: Video subsystem draft

2005-11-26 Thread Yoshinori K. Okuji
On Saturday 26 November 2005 01:28 am, Vesa Jääskeläinen wrote: > > Compression might make the performance horrible, because PPF is very > > optimized. > > When there is a caching implemented in a one day, it's only initial > cost. So far I haven't seen performance problems with this. But then > ag

Re: Video subsystem draft

2005-11-26 Thread Vincent Pelletier
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sat, 26 Nov 2005 02:28:53 +0200 Vesa Jääskeläinen <[EMAIL PROTECTED]> wrote: > Yoshinori K. Okuji wrote: > > If you want to improve it, feel free to do it. It is our own > > format. But I think the byte order was set conveniently. > > Byte order is