[Mesa-dev] [PATCH 2/2] gallium/hud: add GALLIUM_HUD_PERIOD env var

[Marek Olšák]

Reviewed-by: Marek Olšák <maraeo at gmail.com>

Marek


On Fri, Apr 5, 2013 at 12:38 AM, Brian Paul <brianp at vmware.com> wrote:

> To set the graph update rate, in seconds.  The default update rate
> has also been changed to 1/2 second.
> ---
>  src/gallium/auxiliary/hud/hud_context.c |   17 ++++++++++++++++-
>  1 files changed, 16 insertions(+), 1 deletions(-)
>
> diff --git a/src/gallium/auxiliary/hud/hud_context.c
> b/src/gallium/auxiliary/hud/hud_context.c
> index 5722df3..a5145c2 100644
> --- a/src/gallium/auxiliary/hud/hud_context.c
> +++ b/src/gallium/auxiliary/hud/hud_context.c
> @@ -703,12 +703,27 @@ hud_parse_env_var(struct hud_context *hud, const
> char *env)
>     struct hud_pane *pane = NULL;
>     unsigned x = 10, y = 10;
>     unsigned width = 251, height = 100;
> +   unsigned period = 500 * 1000;  /* default period (1/2 second) */
> +   const char *period_env;
> +
> +   /*
> +    * The GALLIUM_HUD_PERIOD env var sets the graph update rate.
> +    * The env var is in seconds (a float).
> +    * Zero means update after every frame.
> +    */
> +   period_env = getenv("GALLIUM_HUD_PERIOD");
> +   if (period_env) {
> +      float p = atof(period_env);
> +      if (p >= 0.0) {
> +         period = (unsigned) (p * 1000 * 1000);
> +      }
> +   }
>
>     while ((num = parse_string(env, name)) != 0) {
>        env += num;
>
>        if (!pane) {
> -         pane = hud_pane_create(x, y, x + width, y + height, 40000, 10);
> +         pane = hud_pane_create(x, y, x + width, y + height, period, 10);
>           if (!pane)
>              return;
>        }
> --
> 1.7.3.4
>
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