Add support for Atari-style interleaved bitplanes, with 2 bytes interleave
and 4 or 8 bits per pixel.
Signed-off-by: Geert Uytterhoeven <ge...@linux-m68k.org>
---
hw/kdrive/fbdev/fbdev.c | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/hw/kdrive/fbdev/fbdev.c b/hw/kdrive/fbdev/fbdev.c
index 52dfbf5..40747fe 100644
--- a/hw/kdrive/fbdev/fbdev.c
+++ b/hw/kdrive/fbdev/fbdev.c
@@ -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:
--
1.7.0.4
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