[Buildroot] [PATCH 1/1] Fix fbgrab pixel format report

Adrian Perez de Castro aperez at igalia.com
Wed Mar 7 15:15:26 UTC 2018


Moikka, Timo!

On Wed,  7 Mar 2018 16:12:51 +0200, "Timo Ketola" <timo at exertus.fi> wrote:
> When verbosive, fbgrab reports pixel format. Green and blue offset and
> msb_right fields are accidentally swapped there. This commit adds a patch
> which straightens them up.
> 
> Signed-off-by: Timo Ketola <timo.ketola at exertus.fi>

Reviewed-by: Adrian Perez de Castro <aperez at igalia.com>

By any chance, have you tried sending the patch upstream? If not, that
would be nice a nice thing to do. As a small nit, could you also add an
“Upstream-Status” tag line next to the “Signed-off-by” one and resubmit
the patch?

BTW, I have noticed that the manual does NOT mention anything about the
“Upstream-Status” tag at all. Probably it would be a good idea to add
some notes about this.

> ---
>  package/fbgrab/0100-fix-pixfmt-report.patch | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 package/fbgrab/0100-fix-pixfmt-report.patch
> 
> diff --git a/package/fbgrab/0100-fix-pixfmt-report.patch b/package/fbgrab/0100-fix-pixfmt-report.patch
> new file mode 100644
> index 0000000..18bcf96
> --- /dev/null
> +++ b/package/fbgrab/0100-fix-pixfmt-report.patch
> @@ -0,0 +1,22 @@
> +Fix pixel format report
> +
> +When fbgrab tells about the framebuffer pixel format, blue and green
> +are accidentally swapped in 'length' and 'msb_right' columns. Let's
> +order everything as RGB.
> +
> +Signed-off-by timo.ketola at exertus.fi
> +
> +diff -u a/fbgrab.c b/fbgrab.c
> +--- a/fbgrab.c	2018-03-07 11:42:04.739250433 +0200
> ++++ b/fbgrab.c	2018-03-07 11:43:26.128043877 +0200
> +@@ -169,8 +169,8 @@
> +         fprintf(stderr, "bits_per_pixel: %i\n", fb_varinfo_p->bits_per_pixel);
> +         fprintf(stderr, "grayscale: %s\n", fb_varinfo_p->grayscale ? "true" : "false");
> +         fprintf(stderr, "red:   offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->red.offset, fb_varinfo_p->red.length, fb_varinfo_p->red.msb_right);
> +-        fprintf(stderr, "blue:  offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->blue.offset, fb_varinfo_p->green.length, fb_varinfo_p->green.msb_right);
> +-        fprintf(stderr, "green: offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->green.offset, fb_varinfo_p->blue.length, fb_varinfo_p->blue.msb_right);
> ++        fprintf(stderr, "green: offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->green.offset, fb_varinfo_p->green.length, fb_varinfo_p->green.msb_right);
> ++        fprintf(stderr, "blue:  offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->blue.offset, fb_varinfo_p->blue.length, fb_varinfo_p->blue.msb_right);
> +         fprintf(stderr, "alpha: offset: %i, length: %i, msb_right: %i\n", fb_varinfo_p->transp.offset, fb_varinfo_p->transp.length, fb_varinfo_p->transp.msb_right);
> +         fprintf(stderr, "pixel format: %s\n", fb_varinfo_p->nonstd == 0 ? "standard" : "non-standard");
> +     }
> -- 
> 2.7.4

Best regards,


--
 Adrián 🎩
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