[PATCH libdrm resend] tests/dristat: add -C to pretty-print device capabilities

Thierry Reding thierry.reding at gmail.com
Tue May 13 03:37:19 PDT 2014


On Fri, Apr 18, 2014 at 01:09:25AM -0700, Aaron Plattner wrote:
> Signed-off-by: Aaron Plattner <aplattner at nvidia.com>
> ---
> Example output of dristat -C:
> /dev/dri/card0
>   Device capabilities:
>     Dumb framebuffer: yes
>     VBlank high crtc: yes
>     Preferred depth: 24
>     Prefer shadow: yes
>     Prime: import export

I think this could go into the commit message.

> diff --git a/tests/dristat.c b/tests/dristat.c
[...]
> +static void getcaps(int fd)
> +{
> +    const struct {
> +	    uint64_t capability;
> +	    enum cap_type type;
> +	    const char *name;

The indentation here is slightly odd. Indentation is slightly odd
throughout the file, but it's more odd here than elsewhere. I think to
make it consistent this should be indented using a single tab rather
than a tab and four spaces.

> +    } caps[] = {
> +	{ DRM_CAP_DUMB_BUFFER,          CAP_BOOL,  "Dumb framebuffer" },
> +	{ DRM_CAP_VBLANK_HIGH_CRTC,     CAP_BOOL,  "VBlank high crtc" },
> +	{ DRM_CAP_DUMB_PREFERRED_DEPTH, CAP_UINT,  "Preferred depth" },
> +	{ DRM_CAP_DUMB_PREFER_SHADOW,   CAP_BOOL,  "Prefer shadow" },
> +	{ DRM_CAP_PRIME,                CAP_PRIME, "Prime" },

/usr/include/drm/drm.h on my system has DRM_CAP_TIMESTAMP_MONOTONIC and
DRM_CAP_ASYNC_PAGE_FLIP in addition to the above. Any chance you could
add support for those as well?

Oh, and there's DRM_CAP_CURSOR_WIDTH and DRM_CAP_CURSOR_HEIGHT, although
those haven't been added to libdrm's copy of drm.h yet.

> +    };
> +    int i;

Perhaps unsigned int here?

Other than that this looks like a useful addition.

Thierry
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