From 07078c29663c6530e6a35b136422448c3bd6d105 Mon Sep 17 00:00:00 2001 From: Dan Fandrich Date: Wed, 26 Jan 2011 11:30:34 -0800 Subject: [PATCH] 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 Signed-off-by: Denys Vlasenko --- miscutils/fbsplash.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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); } -- 2.7.4