On Wed, 19 Jul 2017 00:06:38 +0200 Pablo Castellano <[email protected]> wrote:
> In PostmarketOS we have added support for the Asus grouper device > (Google Nexus 7 2012 tablet), which uses ABGR. > > This mode seems to be less common and previously it was not correctly > handled by calculate_pixman_format() > > For more information, see: > https://github.com/postmarketOS/pmbootstrap/wiki/asus-grouper-%28Google-Nexus-7-2012%29 > > Signed-off-by: Pablo Castellano <[email protected]> Hi, the web page mentions Tegra. Is there really no way to get DRM drivers on that device? Thanks, pq > --- > libweston/compositor-fbdev.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/libweston/compositor-fbdev.c b/libweston/compositor-fbdev.c > index e80a504..37c8005 100644 > --- a/libweston/compositor-fbdev.c > +++ b/libweston/compositor-fbdev.c > @@ -211,8 +211,8 @@ calculate_pixman_format(struct fb_var_screeninfo *vinfo, > vinfo->blue.msb_right != 0) > return 0; > > - /* Work out the format type from the offsets. We only support RGBA and > - * ARGB at the moment. */ > + /* Work out the format type from the offsets. We only support RGBA, > + * ARGB and ABGR at the moment. */ > type = PIXMAN_TYPE_OTHER; > > if ((vinfo->transp.offset >= vinfo->red.offset || > @@ -224,6 +224,10 @@ calculate_pixman_format(struct fb_var_screeninfo *vinfo, > vinfo->green.offset >= vinfo->blue.offset && > vinfo->blue.offset >= vinfo->transp.offset) > type = PIXMAN_TYPE_RGBA; > + else if (vinfo->transp.offset >= vinfo->blue.offset && > + vinfo->blue.offset >= vinfo->green.offset && > + vinfo->green.offset >= vinfo->red.offset) > + type = PIXMAN_TYPE_ABGR; > > if (type == PIXMAN_TYPE_OTHER) > return 0;
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