From: "Antonino A. Daplas" <adaplas@gmail.com>
To: Andrew Morton <akpm@osdl.org>,
Linux Fbdev development list
<linux-fbdev-devel@lists.sourceforge.net>
Subject: [PATCH] asiliantfb: Fix pseudo_palette setup in asiliantfb_setcolreg()
Date: Thu, 23 Feb 2006 20:40:22 +0800 [thread overview]
Message-ID: <43FDAD36.5040804@gmail.com> (raw)
The setcolreg function will attempt to write 24 color entries to the
pseudo_pallette. However, the pseudo_palette has only space for 16
entries.
Thanks to Atsushi Nemoto for reporting this bug.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
---
drivers/video/asiliantfb.c | 21 +++++++++------------
1 files changed, 9 insertions(+), 12 deletions(-)
diff --git a/drivers/video/asiliantfb.c b/drivers/video/asiliantfb.c
index 69f7554..c924d81 100644
--- a/drivers/video/asiliantfb.c
+++ b/drivers/video/asiliantfb.c
@@ -322,32 +322,29 @@ static int asiliantfb_setcolreg(u_int re
writeb(green, mmio_base + 0x791);
writeb(blue, mmio_base + 0x791);
- switch(p->var.bits_per_pixel) {
- case 15:
- if (regno < 16) {
+ if (regno < 16) {
+ switch(p->var.red.offset) {
+ case 10: /* RGB 555 */
((u32 *)(p->pseudo_palette))[regno] =
((red & 0xf8) << 7) |
((green & 0xf8) << 2) |
((blue & 0xf8) >> 3);
- }
- break;
- case 16:
- if (regno < 16) {
+ break;
+ case 11: /* RGB 565 */
((u32 *)(p->pseudo_palette))[regno] =
((red & 0xf8) << 8) |
((green & 0xfc) << 3) |
((blue & 0xf8) >> 3);
- }
- break;
- case 24:
- if (regno < 24) {
+ break;
+ case 16: /* RGB 888 */
((u32 *)(p->pseudo_palette))[regno] =
(red << 16) |
(green << 8) |
(blue);
+ break;
}
- break;
}
+
return 0;
}
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reply other threads:[~2006-02-23 20:46 UTC|newest]
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