[git commit master 1/1] Let fbsplash display images even when a second buffer is active
Denys Vlasenko
vda.linux at googlemail.com
Sat Feb 5 02:34:52 UTC 2011
commit: http://git.busybox.net/busybox/commit/?id=07078c29663c6530e6a35b136422448c3bd6d105
branch: http://git.busybox.net/busybox/commit/?id=refs/heads/master
If a previous application uses double buffering and makes the
second buffer visible, fbsplash's images (written to the first
buffer) otherwise won't be visible.
Signed-off-by: Dan Fandrich <dan at coneharvesters.com>
Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
---
miscutils/fbsplash.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c
index 6b84563..1509923 100644
--- a/miscutils/fbsplash.c
+++ b/miscutils/fbsplash.c
@@ -83,11 +83,14 @@ static void fb_open(const char *strfb_device)
// map the device in memory
G.addr = mmap(NULL,
- G.scr_var.xres * G.scr_var.yres
+ G.scr_var.xres * G.scr_var.yres_virtual
* BYTES_PER_PIXEL /*(G.scr_var.bits_per_pixel / 8)*/,
PROT_WRITE, MAP_SHARED, fbfd, 0);
if (G.addr == MAP_FAILED)
bb_perror_msg_and_die("mmap");
+
+ // point to the start of the visible screen
+ G.addr += G.scr_var.yoffset * G.scr_fix.line_length + G.scr_var.xoffset * BYTES_PER_PIXEL;
close(fbfd);
}
--
1.7.3.4
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