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authorDan Fandrich <dan@coneharvesters.com>2011-01-26 19:30:34 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2011-02-05 02:34:52 (GMT)
commit07078c29663c6530e6a35b136422448c3bd6d105 (patch)
treeb1c0520c4e393a5abbbe1f4ba27c2a05d18f8846
parent3e2834fe72b023155904e118c4f71a8ff73a90ec (diff)
downloadbusybox-07078c29663c6530e6a35b136422448c3bd6d105.tar.gz
busybox-07078c29663c6530e6a35b136422448c3bd6d105.tar.bz2
Let fbsplash display images even when a second buffer is active
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@coneharvesters.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--miscutils/fbsplash.c5
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);
}