starred/linux-legacy
1
0
Fork 0
mirror of https://github.com/genesi/linux-legacy.git synced 2026-09-25 08:05:54 +00:00
Code Issues 2 Packages Projects Releases Wiki Activity

ENGR00137733 MXC V4L2 overlay:Fill black data to fb before preview

Browse Source 
This patch fills black data to overlay fb before preview to get rid
of dirty data splashing the screen.

Signed-off-by: Liu Ying <b17645@freescale.com>
(cherry picked from commit 3dd91a35a55263252ab5d4bb63762713c138b567)
This commit is contained in:
Liu Ying
2011-01-07 13:56:53 +08:00
committed by Matt Sealey
parent a7553845cd
commit d2ba6ce83b
1 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/media/video/mxc/capture/ipu_prp_vf_sdc.c
View File

@@ -48,6 +48,7 @@ static int prpvf_start(void *private)
u32 vf_out_format = 0;
u32 size = 2, temp = 0;
int err = 0, i = 0;
short *tmp, color;
if (!cam) {
printk(KERN_ERR "private is NULL\n");
@@ -81,9 +82,11 @@ static int prpvf_start(void *private)
/* Use DP to do CSC so that we can get better performance */
vf_out_format = IPU_PIX_FMT_UYVY;
fbvar.nonstd = vf_out_format;
color = 0x80;
} else {
vf_out_format = IPU_PIX_FMT_RGB565;
fbvar.nonstd = 0;
color = 0x0;
}
fbvar.bits_per_pixel = 16;
@@ -96,6 +99,12 @@ static int prpvf_start(void *private)
ipu_disp_set_window_pos(MEM_FG_SYNC, cam->win.w.left,
cam->win.w.top);
/* Fill black color for framebuffer */
tmp = (short *) fbi->screen_base;
for (i = 0; i < (fbi->fix.line_length * fbi->var.yres)/2;
i++, tmp++)
*tmp = color;
acquire_console_sem();
fb_blank(fbi, FB_BLANK_UNBLANK);
release_console_sem();