change build system to CMake and use SDL3 for everything

libs/SDL3/test/testpower.c

@@ -0,0 +1,90 @@
+/*
+  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.
+*/
+/* Simple test of power subsystem. */
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h>
+#include <SDL3/SDL_test.h>
+
+static void
+report_power(void)
+{
+    int seconds, percent;
+    const SDL_PowerState state = SDL_GetPowerInfo(&seconds, &percent);
+    const char *statestr = NULL;
+
+    SDL_Log("SDL-reported power info...");
+    switch (state) {
+    case SDL_POWERSTATE_UNKNOWN:
+        statestr = "Unknown";
+        break;
+    case SDL_POWERSTATE_ON_BATTERY:
+        statestr = "On battery";
+        break;
+    case SDL_POWERSTATE_NO_BATTERY:
+        statestr = "No battery";
+        break;
+    case SDL_POWERSTATE_CHARGING:
+        statestr = "Charging";
+        break;
+    case SDL_POWERSTATE_CHARGED:
+        statestr = "Charged";
+        break;
+    default:
+        statestr = "!!API ERROR!!";
+        break;
+    }
+
+    SDL_Log("State: %s", statestr);
+
+    if (percent == -1) {
+        SDL_Log("Percent left: unknown");
+    } else {
+        SDL_Log("Percent left: %d%%", percent);
+    }
+
+    if (seconds == -1) {
+        SDL_Log("Time left: unknown");
+    } else {
+        SDL_Log("Time left: %d minutes, %d seconds", seconds / 60, seconds % 60);
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    SDLTest_CommonState *state;
+
+    /* Initialize test framework */
+    state = SDLTest_CommonCreateState(argv, 0);
+    if (!state) {
+        return 1;
+    }
+
+    /* Parse commandline */
+    if (!SDLTest_CommonDefaultArgs(state, argc, argv)) {
+        return 1;
+    }
+
+    if (!SDL_Init(0)) {
+        SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_Init() failed: %s", SDL_GetError());
+        return 1;
+    }
+
+    report_power();
+
+    SDL_Quit();
+    SDLTest_CommonDestroyState(state);
+
+    return 0;
+}
+
+/* end of testpower.c ... */