1 files changed, 70 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/power/windows/SDL_syspower.c b/contrib/SDL-3.2.8/src/power/windows/SDL_syspower.c
new file mode 100644
index 0000000..ab334f3
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/power/windows/SDL_syspower.c
@@ -0,0 +1,70 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  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_WINDOWS
+
+#include "../../core/windows/SDL_windows.h"
+
+bool SDL_GetPowerInfo_Windows(SDL_PowerState *state, int *seconds, int *percent)
+{
+    SYSTEM_POWER_STATUS status;
+    bool need_details = false;
+
+    // This API should exist back to Win95.
+    if (!GetSystemPowerStatus(&status)) {
+        // !!! FIXME: push GetLastError() into SDL_GetError()
+        *state = SDL_POWERSTATE_UNKNOWN;
+    } else if (status.BatteryFlag == 0xFF) { // unknown state
+        *state = SDL_POWERSTATE_UNKNOWN;
+    } else if (status.BatteryFlag & (1 << 7)) { // no battery
+        *state = SDL_POWERSTATE_NO_BATTERY;
+    } else if (status.BatteryFlag & (1 << 3)) { // charging
+        *state = SDL_POWERSTATE_CHARGING;
+        need_details = true;
+    } else if (status.ACLineStatus == 1) {
+        *state = SDL_POWERSTATE_CHARGED; // on AC, not charging.
+        need_details = true;
+    } else {
+        *state = SDL_POWERSTATE_ON_BATTERY; // not on AC.
+        need_details = true;
+    }
+
+    *percent = -1;
+    *seconds = -1;
+    if (need_details) {
+        const int pct = (int)status.BatteryLifePercent;
+        const int secs = (int)status.BatteryLifeTime;
+
+        if (pct != 255) {                       // 255 == unknown
+            *percent = (pct > 100) ? 100 : pct; // clamp between 0%, 100%
+        }
+        if (secs != 0xFFFFFFFF) { // ((DWORD)-1) == unknown
+            *seconds = secs;
+        }
+    }
+
+    return true; // always the definitive answer on Windows.
+}
+
+#endif // SDL_POWER_WINDOWS
+#endif // SDL_POWER_DISABLED