Merge commit 'b22c6238d5eb65ced42808ec326aae75d0d5c9ed' into back-to-imgui

external/SDL/src/timer/ngage/SDL_systimer.cpp

@@ -0,0 +1,48 @@
+/*
+  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"
+
+#include <e32hal.h>
+#include <e32std.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+Uint64 SDL_GetPerformanceCounter(void)
+{
+    return static_cast<Uint64>(User::TickCount());
+}
+
+Uint64 SDL_GetPerformanceFrequency(void)
+{
+    // On Symbian S60v1, tick frequency is 64 Hz => 1 tick = 15,625 microseconds.
+    return 64;
+}
+
+void SDL_SYS_DelayNS(Uint64 ns)
+{
+    User::After(SDL_NS_TO_US(ns));
+}
+
+#ifdef __cplusplus
+}
+#endif