mirror of
https://github.com/libsdl-org/SDL.git
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fbd230bb6c
* Add initial support for the Nokia N-Gage
* N-Gage: disable clipping for the time being, issue needs to be resolved later
* Move va_copy definition to SDL_internal.h
* Move stdlib.h include to SDL_config_ngage.h, much cleaner this way
* Remove redundant include, add HAVE_STDLIB_H
* Revert "N-Gage: disable clipping for the time being, issue needs to be resolved later"
This reverts commit 4f5f0fc36c.
* N-Gage: fix clipping issue by providing proper math functions
100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 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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#include "SDL_timer.h"
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static SDL_bool ticks_started = SDL_FALSE;
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static TUint start = 0;
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static TInt tickPeriodMilliSeconds;
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#ifdef __cplusplus
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extern "C" {
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#endif
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void
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SDL_TicksInit(void)
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{
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if (ticks_started)
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{
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return;
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}
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ticks_started = SDL_TRUE;
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start = User::TickCount();
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TTimeIntervalMicroSeconds32 period;
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TInt tmp = UserHal::TickPeriod(period);
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(void)tmp; /* Suppress redundant warning. */
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tickPeriodMilliSeconds = period.Int() / 1000;
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}
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void
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SDL_TicksQuit(void)
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{
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ticks_started = SDL_FALSE;
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}
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Uint64
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SDL_GetTicks64(void)
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{
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if (! ticks_started)
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{
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SDL_TicksInit();
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}
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TUint deltaTics = User::TickCount() - start;
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// Overlaps early, but should do the trick for now.
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return (Uint64)(deltaTics * tickPeriodMilliSeconds);
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}
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Uint64
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SDL_GetPerformanceCounter(void)
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{
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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 1000000;
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}
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void
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SDL_Delay(Uint32 ms)
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{
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User::After(TTimeIntervalMicroSeconds32(ms * 1000));
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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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/* vi: set ts=4 sw=4 expandtab: */
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