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Xfbdev: Wire up Atari iplan2p4 and iplan2p8 support

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Add support for Atari-style interleaved bitplanes, with 2 bytes interleave
and 4 or 8 bits per pixel.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Geert Uytterhoeven 2013-03-10 17:17:26 +01:00
parent 95a3c7536c
commit 672bc5bb38
1 changed files with 18 additions and 1 deletions
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19
hw/kdrive/fbdev/fbdev.c
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@ -439,7 +439,24 @@ fbdevSetShadow(ScreenPtr pScreen)
break;
case FB_TYPE_INTERLEAVED_PLANES:
FatalError("Interleaved bitplanes are not yet supported\n");
if (priv->fix.type_aux == 2) {
switch (priv->var.bits_per_pixel) {
case 4:
update = shadowUpdateIplan2p4;
break;
case 8:
update = shadowUpdateIplan2p8;
break;
default:
FatalError("Atari interleaved bitplanes with bpp %u are not yet supported\n",
priv->var.bits_per_pixel);
}
} else {
FatalError("Interleaved bitplanes with interleave %u are not yet supported\n",
priv->fix.type_aux);
}
break;
case FB_TYPE_TEXT: