[PATCH 3/3] GUI: Add fbtest command

[Andrey Smirnov]

On Wed, Jun 22, 2016 at 11:22 PM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> On Tue, Jun 21, 2016 at 09:39:29PM -0700, Andrey Smirnov wrote:
>> Add 'fbtest' - a command to produce test patterns on a screen
>>
>> Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
>> Signed-off-by: Andrey Gusakov <andrey.gusakov at cogentembedded.com>
>> ---
>>  commands/Kconfig  |   9 +++
>>  commands/Makefile |   1 +
>>  commands/fbtest.c | 187 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 197 insertions(+)
>>  create mode 100644 commands/fbtest.c
>>
>> diff --git a/commands/Kconfig b/commands/Kconfig
>> index 880cd45..107cc3e 100644
>> --- a/commands/Kconfig
>> +++ b/commands/Kconfig
>> @@ -1417,6 +1417,15 @@ config CMD_SPLASH
>>                 -b COLOR      background color in 0xttrrggbb
>>                 -o            render offscreen
>>
>
>> +
>> +static int do_fbtest(int argc, char *argv[])
>> +{
>> +     struct screen *sc;
>> +     int opt, i;
>> +     const char *pattern_name = NULL;
>> +     char *fbdev = "/dev/fb0";
>> +     void (*pattern) (struct screen *sc, u32 color) = NULL;
>> +     u32 color = 0xffffff;
>> +
>> +     struct {
>> +             const char *name;
>> +             void (*func) (struct screen *sc, u32 color);
>> +     } patterns[] = {
>> +             { "geometry", fbtest_pattern_geometry },
>> +             { "bars",     fbtest_pattern_bars     }
>> +     };
>> +
>> +     while((opt = getopt(argc, argv, "d:p:c:")) > 0) {
>> +             switch(opt) {
>> +             case 'd':
>> +                     fbdev = optarg;
>> +                     break;
>> +             case 'p':
>> +                     pattern_name = optarg;
>> +                     break;
>> +             case 'c':
>> +                     color = simple_strtoul(optarg, NULL, 16);
>> +                     break;
>> +             }
>> +     }
>> +
>> +     if (!pattern_name) {
>> +             printf("No pattern name specified\n");
>> +             return -EINVAL;
>> +     }
>
> Maybe we can iterate over the patterns if no pattern is given like the
> Linux variant does?
>

I like this idea, I wasn't able to find the source code of a fbtest
version that does that, so I am not sure if I'll match the behavior
exactly. I'll make it loop over patterns and wait for Ctrl-C in v2 if
no pattern is given.

Thanks,
Andrey