From 30f41c02aec763d32e62351452da9ef582bc3472 Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Fri, 6 Mar 2026 13:30:59 -0800 Subject: Move contrib libraries to contrib repo --- contrib/SDL-3.2.8/src/power/linux/SDL_syspower.c | 648 ----------------------- 1 file changed, 648 deletions(-) delete mode 100644 contrib/SDL-3.2.8/src/power/linux/SDL_syspower.c (limited to 'contrib/SDL-3.2.8/src/power/linux') diff --git a/contrib/SDL-3.2.8/src/power/linux/SDL_syspower.c b/contrib/SDL-3.2.8/src/power/linux/SDL_syspower.c deleted file mode 100644 index 428be4a..0000000 --- a/contrib/SDL-3.2.8/src/power/linux/SDL_syspower.c +++ /dev/null @@ -1,648 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2025 Sam Lantinga - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ -#include "SDL_internal.h" - -#ifndef SDL_POWER_DISABLED -#ifdef SDL_POWER_LINUX - -#include -#include - -#include -#include -#include -#include - -#include "../SDL_syspower.h" - -#include "../../core/linux/SDL_dbus.h" - -static const char *proc_apm_path = "/proc/apm"; -static const char *proc_acpi_battery_path = "/proc/acpi/battery"; -static const char *proc_acpi_ac_adapter_path = "/proc/acpi/ac_adapter"; -static const char *sys_class_power_supply_path = "/sys/class/power_supply"; - -static int open_power_file(const char *base, const char *node, const char *key) -{ - int fd; - const size_t pathlen = SDL_strlen(base) + SDL_strlen(node) + SDL_strlen(key) + 3; - char *path = SDL_stack_alloc(char, pathlen); - if (!path) { - return -1; // oh well. - } - - (void)SDL_snprintf(path, pathlen, "%s/%s/%s", base, node, key); - fd = open(path, O_RDONLY | O_CLOEXEC); - SDL_stack_free(path); - return fd; -} - -static bool read_power_file(const char *base, const char *node, const char *key, - char *buf, size_t buflen) -{ - ssize_t br = 0; - const int fd = open_power_file(base, node, key); - if (fd == -1) { - return false; - } - br = read(fd, buf, buflen - 1); - close(fd); - if (br < 0) { - return false; - } - buf[br] = '\0'; // null-terminate the string. - return true; -} - -static bool make_proc_acpi_key_val(char **_ptr, char **_key, char **_val) -{ - char *ptr = *_ptr; - - while (*ptr == ' ') { - ptr++; // skip whitespace. - } - - if (*ptr == '\0') { - return false; // EOF. - } - - *_key = ptr; - - while ((*ptr != ':') && (*ptr != '\0')) { - ptr++; - } - - if (*ptr == '\0') { - return false; // (unexpected) EOF. - } - - *(ptr++) = '\0'; // terminate the key. - - while (*ptr == ' ') { - ptr++; // skip whitespace. - } - - if (*ptr == '\0') { - return false; // (unexpected) EOF. - } - - *_val = ptr; - - while ((*ptr != '\n') && (*ptr != '\0')) { - ptr++; - } - - if (*ptr != '\0') { - *(ptr++) = '\0'; // terminate the value. - } - - *_ptr = ptr; // store for next time. - return true; -} - -static void check_proc_acpi_battery(const char *node, bool *have_battery, - bool *charging, int *seconds, int *percent) -{ - const char *base = proc_acpi_battery_path; - char info[1024]; - char state[1024]; - char *ptr = NULL; - char *key = NULL; - char *val = NULL; - bool charge = false; - bool choose = false; - int maximum = -1; - int remaining = -1; - int secs = -1; - int pct = -1; - - if (!read_power_file(base, node, "state", state, sizeof(state))) { - return; - } else if (!read_power_file(base, node, "info", info, sizeof(info))) { - return; - } - - ptr = &state[0]; - while (make_proc_acpi_key_val(&ptr, &key, &val)) { - if (SDL_strcasecmp(key, "present") == 0) { - if (SDL_strcasecmp(val, "yes") == 0) { - *have_battery = true; - } - } else if (SDL_strcasecmp(key, "charging state") == 0) { - // !!! FIXME: what exactly _does_ charging/discharging mean? - if (SDL_strcasecmp(val, "charging/discharging") == 0) { - charge = true; - } else if (SDL_strcasecmp(val, "charging") == 0) { - charge = true; - } - } else if (SDL_strcasecmp(key, "remaining capacity") == 0) { - char *endptr = NULL; - const int cvt = (int)SDL_strtol(val, &endptr, 10); - if (*endptr == ' ') { - remaining = cvt; - } - } - } - - ptr = &info[0]; - while (make_proc_acpi_key_val(&ptr, &key, &val)) { - if (SDL_strcasecmp(key, "design capacity") == 0) { - char *endptr = NULL; - const int cvt = (int)SDL_strtol(val, &endptr, 10); - if (*endptr == ' ') { - maximum = cvt; - } - } - } - - if ((maximum >= 0) && (remaining >= 0)) { - pct = (int)((((float)remaining) / ((float)maximum)) * 100.0f); - if (pct < 0) { - pct = 0; - } else if (pct > 100) { - pct = 100; - } - } - - // !!! FIXME: calculate (secs). - - /* - * We pick the battery that claims to have the most minutes left. - * (failing a report of minutes, we'll take the highest percent.) - */ - if ((secs < 0) && (*seconds < 0)) { - if ((pct < 0) && (*percent < 0)) { - choose = true; // at least we know there's a battery. - } - if (pct > *percent) { - choose = true; - } - } else if (secs > *seconds) { - choose = true; - } - - if (choose) { - *seconds = secs; - *percent = pct; - *charging = charge; - } -} - -static void check_proc_acpi_ac_adapter(const char *node, bool *have_ac) -{ - const char *base = proc_acpi_ac_adapter_path; - char state[256]; - char *ptr = NULL; - char *key = NULL; - char *val = NULL; - - if (!read_power_file(base, node, "state", state, sizeof(state))) { - return; - } - - ptr = &state[0]; - while (make_proc_acpi_key_val(&ptr, &key, &val)) { - if (SDL_strcasecmp(key, "state") == 0) { - if (SDL_strcasecmp(val, "on-line") == 0) { - *have_ac = true; - } - } - } -} - -bool SDL_GetPowerInfo_Linux_proc_acpi(SDL_PowerState *state, int *seconds, int *percent) -{ - struct dirent *dent = NULL; - DIR *dirp = NULL; - bool have_battery = false; - bool have_ac = false; - bool charging = false; - - *seconds = -1; - *percent = -1; - *state = SDL_POWERSTATE_UNKNOWN; - - dirp = opendir(proc_acpi_battery_path); - if (!dirp) { - return false; // can't use this interface. - } else { - while ((dent = readdir(dirp)) != NULL) { - const char *node = dent->d_name; - check_proc_acpi_battery(node, &have_battery, &charging, - seconds, percent); - } - closedir(dirp); - } - - dirp = opendir(proc_acpi_ac_adapter_path); - if (!dirp) { - return false; // can't use this interface. - } else { - while ((dent = readdir(dirp)) != NULL) { - const char *node = dent->d_name; - check_proc_acpi_ac_adapter(node, &have_ac); - } - closedir(dirp); - } - - if (!have_battery) { - *state = SDL_POWERSTATE_NO_BATTERY; - } else if (charging) { - *state = SDL_POWERSTATE_CHARGING; - } else if (have_ac) { - *state = SDL_POWERSTATE_CHARGED; - } else { - *state = SDL_POWERSTATE_ON_BATTERY; - } - - return true; // definitive answer. -} - -static bool next_string(char **_ptr, char **_str) -{ - char *ptr = *_ptr; - char *str; - - while (*ptr == ' ') { // skip any spaces... - ptr++; - } - - if (*ptr == '\0') { - return false; - } - - str = ptr; - while ((*ptr != ' ') && (*ptr != '\n') && (*ptr != '\0')) { - ptr++; - } - - if (*ptr != '\0') { - *(ptr++) = '\0'; - } - - *_str = str; - *_ptr = ptr; - return true; -} - -static bool int_string(char *str, int *val) -{ - char *endptr = NULL; - *val = (int)SDL_strtol(str, &endptr, 0); - return (*str != '\0') && (*endptr == '\0'); -} - -// http://lxr.linux.no/linux+v2.6.29/drivers/char/apm-emulation.c -bool SDL_GetPowerInfo_Linux_proc_apm(SDL_PowerState *state, int *seconds, int *percent) -{ - bool need_details = false; - int ac_status = 0; - int battery_status = 0; - int battery_flag = 0; - int battery_percent = 0; - int battery_time = 0; - const int fd = open(proc_apm_path, O_RDONLY | O_CLOEXEC); - char buf[128]; - char *ptr = &buf[0]; - char *str = NULL; - ssize_t br; - - if (fd == -1) { - return false; // can't use this interface. - } - - br = read(fd, buf, sizeof(buf) - 1); - close(fd); - - if (br < 0) { - return false; - } - - buf[br] = '\0'; // null-terminate the string. - if (!next_string(&ptr, &str)) { // driver version - return false; - } - if (!next_string(&ptr, &str)) { // BIOS version - return false; - } - if (!next_string(&ptr, &str)) { // APM flags - return false; - } - - if (!next_string(&ptr, &str)) { // AC line status - return false; - } else if (!int_string(str, &ac_status)) { - return false; - } - - if (!next_string(&ptr, &str)) { // battery status - return false; - } else if (!int_string(str, &battery_status)) { - return false; - } - if (!next_string(&ptr, &str)) { // battery flag - return false; - } else if (!int_string(str, &battery_flag)) { - return false; - } - if (!next_string(&ptr, &str)) { // remaining battery life percent - return false; - } - if (str[SDL_strlen(str) - 1] == '%') { - str[SDL_strlen(str) - 1] = '\0'; - } - if (!int_string(str, &battery_percent)) { - return false; - } - - if (!next_string(&ptr, &str)) { // remaining battery life time - return false; - } else if (!int_string(str, &battery_time)) { - return false; - } - - if (!next_string(&ptr, &str)) { // remaining battery life time units - return false; - } else if (SDL_strcasecmp(str, "min") == 0) { - battery_time *= 60; - } - - if (battery_flag == 0xFF) { // unknown state - *state = SDL_POWERSTATE_UNKNOWN; - } else if (battery_flag & (1 << 7)) { // no battery - *state = SDL_POWERSTATE_NO_BATTERY; - } else if (battery_flag & (1 << 3)) { // charging - *state = SDL_POWERSTATE_CHARGING; - need_details = true; - } else if (ac_status == 1) { - *state = SDL_POWERSTATE_CHARGED; // on AC, not charging. - need_details = true; - } else { - *state = SDL_POWERSTATE_ON_BATTERY; - need_details = true; - } - - *percent = -1; - *seconds = -1; - if (need_details) { - const int pct = battery_percent; - const int secs = battery_time; - - if (pct >= 0) { // -1 == unknown - *percent = (pct > 100) ? 100 : pct; // clamp between 0%, 100% - } - if (secs >= 0) { // -1 == unknown - *seconds = secs; - } - } - - return true; -} - -bool SDL_GetPowerInfo_Linux_sys_class_power_supply(SDL_PowerState *state, int *seconds, int *percent) -{ - const char *base = sys_class_power_supply_path; - struct dirent *dent; - DIR *dirp; - - dirp = opendir(base); - if (!dirp) { - return false; - } - - *state = SDL_POWERSTATE_NO_BATTERY; // assume we're just plugged in. - *seconds = -1; - *percent = -1; - - while ((dent = readdir(dirp)) != NULL) { - const char *name = dent->d_name; - bool choose = false; - char str[64]; - 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. - } else if (!read_power_file(base, name, "type", str, sizeof(str))) { - continue; // Don't know _what_ we're looking at. Give up on it. - } else if (SDL_strcasecmp(str, "Battery\n") != 0) { - continue; // we don't care about UPS and such. - } - - /* if the scope is "device," it might be something like a PS4 - controller reporting its own battery, and not something that powers - the system. Most system batteries don't list a scope at all; we - assume it's a system battery if not specified. */ - if (read_power_file(base, name, "scope", str, sizeof(str))) { - if (SDL_strcasecmp(str, "Device\n") == 0) { - continue; // skip external devices with their own batteries. - } - } - - // some drivers don't offer this, so if it's not explicitly reported assume it's present. - if (read_power_file(base, name, "present", str, sizeof(str)) && (SDL_strcmp(str, "0\n") == 0)) { - st = SDL_POWERSTATE_NO_BATTERY; - } else if (!read_power_file(base, name, "status", str, sizeof(str))) { - st = SDL_POWERSTATE_UNKNOWN; // uh oh - } else if (SDL_strcasecmp(str, "Charging\n") == 0) { - st = SDL_POWERSTATE_CHARGING; - } else if (SDL_strcasecmp(str, "Discharging\n") == 0) { - st = SDL_POWERSTATE_ON_BATTERY; - } else if ((SDL_strcasecmp(str, "Full\n") == 0) || (SDL_strcasecmp(str, "Not charging\n") == 0)) { - st = SDL_POWERSTATE_CHARGED; - } else { - st = SDL_POWERSTATE_UNKNOWN; // uh oh - } - - if (!read_power_file(base, name, "capacity", str, sizeof(str))) { - pct = -1; - } else { - pct = SDL_atoi(str); - pct = (pct > 100) ? 100 : pct; // clamp between 0%, 100% - } - - 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; - } - - /* - * We pick the battery that claims to have the most minutes left. - * (failing a report of minutes, we'll take the highest percent.) - */ - if ((secs < 0) && (*seconds < 0)) { - if ((pct < 0) && (*percent < 0)) { - choose = true; // at least we know there's a battery. - } else if (pct > *percent) { - choose = true; - } - } else if (secs > *seconds) { - choose = true; - } - - if (choose) { - *seconds = secs; - *percent = pct; - *state = st; - } - } - - closedir(dirp); - return true; // don't look any further. -} - -// d-bus queries to org.freedesktop.UPower. -#ifdef SDL_USE_LIBDBUS -#define UPOWER_DBUS_NODE "org.freedesktop.UPower" -#define UPOWER_DBUS_PATH "/org/freedesktop/UPower" -#define UPOWER_DBUS_INTERFACE "org.freedesktop.UPower" -#define UPOWER_DEVICE_DBUS_INTERFACE "org.freedesktop.UPower.Device" - -static void check_upower_device(DBusConnection *conn, const char *path, SDL_PowerState *state, int *seconds, int *percent) -{ - bool choose = false; - SDL_PowerState st; - int secs; - int pct; - Uint32 ui32 = 0; - Sint64 si64 = 0; - double d = 0.0; - - if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "Type", DBUS_TYPE_UINT32, &ui32)) { - return; // Don't know _what_ we're looking at. Give up on it. - } else if (ui32 != 2) { // 2==Battery - return; // we don't care about UPS and such. - } else if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "PowerSupply", DBUS_TYPE_BOOLEAN, &ui32)) { - return; - } else if (!ui32) { - return; // we don't care about random devices with batteries, like wireless controllers, etc - } - - if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "IsPresent", DBUS_TYPE_BOOLEAN, &ui32)) { - return; - } - if (!ui32) { - st = SDL_POWERSTATE_NO_BATTERY; - } else { - /* Get updated information on the battery status - * This can occasionally fail, and we'll just return slightly stale data in that case - */ - SDL_DBus_CallMethodOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "Refresh", DBUS_TYPE_INVALID, DBUS_TYPE_INVALID); - - if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "State", DBUS_TYPE_UINT32, &ui32)) { - st = SDL_POWERSTATE_UNKNOWN; // uh oh - } else if (ui32 == 1) { // 1 == charging - st = SDL_POWERSTATE_CHARGING; - } else if ((ui32 == 2) || (ui32 == 3) || (ui32 == 6)) { - /* 2 == discharging; - * 3 == empty; - * 6 == "pending discharge" which GNOME interprets as equivalent - * to discharging */ - st = SDL_POWERSTATE_ON_BATTERY; - } else if ((ui32 == 4) || (ui32 == 5)) { - /* 4 == full; - * 5 == "pending charge" which GNOME shows as "Not charging", - * used when a battery is configured to stop charging at a - * lower than 100% threshold */ - st = SDL_POWERSTATE_CHARGED; - } else { - st = SDL_POWERSTATE_UNKNOWN; // uh oh - } - } - - if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "Percentage", DBUS_TYPE_DOUBLE, &d)) { - pct = -1; // some old/cheap batteries don't set this property. - } else { - pct = (int)d; - pct = (pct > 100) ? 100 : pct; // clamp between 0%, 100% - } - - if (!SDL_DBus_QueryPropertyOnConnection(conn, UPOWER_DBUS_NODE, path, UPOWER_DEVICE_DBUS_INTERFACE, "TimeToEmpty", DBUS_TYPE_INT64, &si64)) { - secs = -1; - } else { - secs = (int)si64; - secs = (secs <= 0) ? -1 : secs; // 0 == unknown - } - - /* - * We pick the battery that claims to have the most minutes left. - * (failing a report of minutes, we'll take the highest percent.) - */ - if ((secs < 0) && (*seconds < 0)) { - if ((pct < 0) && (*percent < 0)) { - choose = true; // at least we know there's a battery. - } else if (pct > *percent) { - choose = true; - } - } else if (secs > *seconds) { - choose = true; - } - - if (choose) { - *seconds = secs; - *percent = pct; - *state = st; - } -} -#endif - -bool SDL_GetPowerInfo_Linux_org_freedesktop_upower(SDL_PowerState *state, int *seconds, int *percent) -{ - bool result = false; - -#ifdef SDL_USE_LIBDBUS - SDL_DBusContext *dbus = SDL_DBus_GetContext(); - char **paths = NULL; - int i, numpaths = 0; - - if (!dbus || !SDL_DBus_CallMethodOnConnection(dbus->system_conn, UPOWER_DBUS_NODE, UPOWER_DBUS_PATH, UPOWER_DBUS_INTERFACE, "EnumerateDevices", - DBUS_TYPE_INVALID, - DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &paths, &numpaths, DBUS_TYPE_INVALID)) { - return false; // try a different approach than UPower. - } - - result = true; // Clearly we can use this interface. - *state = SDL_POWERSTATE_NO_BATTERY; // assume we're just plugged in. - *seconds = -1; - *percent = -1; - - for (i = 0; i < numpaths; i++) { - check_upower_device(dbus->system_conn, paths[i], state, seconds, percent); - } - - dbus->free_string_array(paths); -#endif // SDL_USE_LIBDBUS - - return result; -} - -#endif // SDL_POWER_LINUX -#endif // SDL_POWER_DISABLED -- cgit v1.2.3