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[patch] wider support for battery lifetime data on Linux platforms using sys interface

SDL_linux_sys_power_battery_eta.patch (text/plain), 1.28 KB, created by Murad on 2019-12-27 11:57:35 UTC

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Filename:

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Creator: Murad

Created: 2019-12-27 11:57:35 UTC

Size: 1.28 KB

patch

obsolete

>--- src/SDL2-2.0.10/src/power/linux/SDL_syspower.c	2019-07-25 07:32:36.000000000 +0300
>+++ /home/foxpy/SDL_syspower.c	2019-12-27 14:41:47.123372072 +0300
>@@ -451,6 +451,8 @@
>         SDL_PowerState st;
>         int secs;
>         int pct;
>+        int energy;
>+        int power;
> 
>         if ((SDL_strcmp(name, ".") == 0) || (SDL_strcmp(name, "..") == 0)) {
>             continue;  /* skip these, of course. */
>@@ -492,11 +494,16 @@
>             pct = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
>         }
> 
>-        if (!read_power_file(base, name, "time_to_empty_now", str, sizeof (str))) {
>-            secs = -1;
>-        } else {
>+        if (read_power_file(base, name, "time_to_empty_now", str, sizeof (str))) {
>             secs = SDL_atoi(str);
>             secs = (secs <= 0) ? -1 : secs;  /* 0 == unknown */
>+        } else if (st == SDL_POWERSTATE_ON_BATTERY) {
>+            /* energy is Watt*hours and power is Watts */
>+            energy = (read_power_file(base, name, "energy_now", str, sizeof (str))) ? SDL_atoi(str) : -1;
>+            power = (read_power_file(base, name, "power_now", str, sizeof (str))) ? SDL_atoi(str) : -1;
>+            secs = (energy >= 0 && power > 0) ? (3600LL * energy) / power : -1;
>+        } else {
>+            secs = -1;
>         }
> 
>         /*

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Attachments on bug 4920: 4140

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.