Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Fri, 4 Apr 2003 13:17:15 +0200 (MEST) | From | Geert Uytterhoeven <> | Subject | [PATCH] interlaced packed pixels |
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Hi,
I'd like to introduce a new frame buffer type to accommodate packed pixel frame buffers that store the even and odd fields separately. This is typically used in graphics hardware for TV output (e.g. set-top boxes).
--- linux-2.4.21-pre6/include/linux/fb.h.orig Tue Apr 16 10:21:43 2002 +++ linux-2.4.21-pre6/include/fb.h Fri Apr 4 13:14:19 2003 @@ -38,6 +38,7 @@ #define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */ #define FB_TYPE_TEXT 3 /* Text/attributes */ #define FB_TYPE_VGA_PLANES 4 /* EGA/VGA planes */ +#define FB_TYPE_PACKED_PIXELS_LACED 5 /* Interlaced Packed Pixels */ #define FB_AUX_TEXT_MDA 0 /* Monochrome text */ #define FB_AUX_TEXT_CGA 1 /* CGA/EGA/VGA Color text */ @@ -115,6 +117,8 @@ __u32 smem_len; /* Length of frame buffer mem */ __u32 type; /* see FB_TYPE_* */ __u32 type_aux; /* Interleave for interleaved Planes */ + /* Offset to odd field for */ + /* interlaced packed pixels */ __u32 visual; /* see FB_VISUAL_* */ __u16 xpanstep; /* zero if no hardware panning */ __u16 ypanstep; /* zero if no hardware panning */ The patch applies to both 2.4.x and 2.5.x.
Any comments?
Gr{oetje,eeting}s, Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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