Date: Sat, 16 Feb 2013 14:20:28 +0100 From: Phileas Fogg <phileas-fogg@mail.ru> To: freebsd-hackers@freebsd.org Subject: Scrolling in framebuffer syscons Message-ID: <511F879C.3030801@mail.ru>
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Hi, i have a question about how the scrolling in a framebuffer syscons works. I'm trying to speed up the syscons on the PS3 console which is a simple framebuffer syscons. It uses the renderer _gfbrndrsw_ (see dev/syscons/scgfbrndr.c) to draw into the framebuffer of the PS3 console. The _gfb_draw_ function implements a simple scrolling that moves data from bottom to top with _vidd_copy_. And that's where i have a problem because _vidd_copy_ calls the function _ps3fb_copy_ (see powerpc/ps3/ps3_syscons.c). But the function _ps3fb_copy_ is NOT implemented yet. So, the question is how does the scrolling work then ? I took a look at other syscons implementation based on a framebuffer, and almost all of them do NOT implement _vidd_copy_ function, e.g. XBOX syscons. Thanks regards
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