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gallium/hud: add GALLIUM_HUD_PERIOD env var 

To set the graph update rate, in seconds.  The default update rate
has also been changed to 1/2 second.

Reviewed-by: Marek Olšák <maraeo@gmail.com>
This commit is contained in:
Brian Paul 2013-04-04 16:37:56 -06:00
parent 6211c45186
commit f5071783c1
1 changed files with 16 additions and 1 deletions
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17
src/gallium/auxiliary/hud/hud_context.c
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@ -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;
}