62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#if defined(SDL_TIMER_NGAGE)
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#include <e32std.h>
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#include <e32hal.h>
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static TUint start_tick = 0;
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#ifdef __cplusplus
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extern "C" {
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#endif
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Uint64
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SDL_GetPerformanceCounter(void)
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{
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/* FIXME: Need to account for 32-bit wrapping */
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return (Uint64)User::TickCount();
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}
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Uint64
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SDL_GetPerformanceFrequency(void)
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{
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return SDL_US_PER_SECOND;
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}
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void SDL_DelayNS(Uint64 ns)
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{
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const Uint64 max_delay = 0x7fffffffLL * SDL_NS_PER_US;
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if (ns > max_delay) {
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ns = max_delay;
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}
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User::After(TTimeIntervalMicroSeconds32((TInt)SDL_NS_TO_US(ns)));
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* SDL_TIMER_NGAGE */
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