I have a system where the framebuffer size doesn't match the display
size. In order to figure out which portion of the framebuffer makes it
to the screen I wanted a way to quickly move the picture around. I
decided to add a command line option for a horizontal offset that at
runtime lets you change where exactly the image gets written.
This patch adds a new --horizontal-offset argument to let the user
specify this offset. I was tempted to make the short option "-h"
instead of "-o", but figured that was a bit misleading. "-h" is very
often used for a help.
Signed-off-by: Philipp Schrader <phil...@peloton-tech.com>
---
psplash.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/psplash.c b/psplash.c
index 992e199..166db73 100644
--- a/psplash.c
+++ b/psplash.c
@@ -206,6 +206,7 @@ main (int argc, char** argv)
{
char *tmpdir;
int pipe_fd, i = 0, angle = 0, fbdev_id = 0, ret = 0;
+ int horizontal_offset = 0;
PSplashFB *fb;
bool disable_console_switch = FALSE;
@@ -234,9 +235,16 @@ main (int argc, char** argv)
continue;
}
+ if (!strcmp(argv[i],"-o") || !strcmp(argv[i],"--horizontal-offset"))
+ {
+ if (++i >= argc) goto fail;
+ horizontal_offset = atoi(argv[i]);
+ continue;
+ }
+
fail:
fprintf(stderr,
- "Usage: %s [-n|--no-console-switch][-a|--angle
<0|90|180|270>][-f|--fbdev <0..9>]\n",
+ "Usage: %s [-n|--no-console-switch][-a|--angle
<0|90|180|270>][-f|--fbdev <0..9>][-o|--horizontal-offset X]\n",
argv[0]);
exit(-1);
}
@@ -280,7 +288,7 @@ main (int argc, char** argv)
/* Draw the Poky logo */
psplash_fb_draw_image (fb,
- (fb->width - POKY_IMG_WIDTH)/2,
+ (fb->width - POKY_IMG_WIDTH)/2 + horizontal_offset,
#if PSPLASH_IMG_FULLSCREEN
(fb->height - POKY_IMG_HEIGHT)/2,
#else
--
2.1.4
--
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