cscg22-gearboy

CSCG 2022 Challenge 'Gearboy'
git clone https://git.sinitax.com/sinitax/cscg22-gearboy
Log | Files | Refs | sfeed.txt

SDL_systimer.c (1732B)

      1/*
      2  Simple DirectMedia Layer
      3  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
      4
      5  This software is provided 'as-is', without any express or implied
      6  warranty.  In no event will the authors be held liable for any damages
      7  arising from the use of this software.
      8
      9  Permission is granted to anyone to use this software for any purpose,
     10  including commercial applications, and to alter it and redistribute it
     11  freely, subject to the following restrictions:
     12
     13  1. The origin of this software must not be misrepresented; you must not
     14     claim that you wrote the original software. If you use this software
     15     in a product, an acknowledgment in the product documentation would be
     16     appreciated but is not required.
     17  2. Altered source versions must be plainly marked as such, and must not be
     18     misrepresented as being the original software.
     19  3. This notice may not be removed or altered from any source distribution.
     20*/
     21#include "../../SDL_internal.h"
     22
     23#ifdef SDL_TIMER_HAIKU
     24
     25#include <os/kernel/OS.h>
     26
     27#include "SDL_timer.h"
     28
     29static bigtime_t start;
     30static SDL_bool ticks_started = SDL_FALSE;
     31
     32void
     33SDL_TicksInit(void)
     34{
     35    if (ticks_started) {
     36        return;
     37    }
     38    ticks_started = SDL_TRUE;
     39
     40    /* Set first ticks value */
     41    start = system_time();
     42}
     43
     44void
     45SDL_TicksQuit(void)
     46{
     47    ticks_started = SDL_FALSE;
     48}
     49
     50Uint32
     51SDL_GetTicks(void)
     52{
     53    if (!ticks_started) {
     54        SDL_TicksInit();
     55    }
     56
     57    return ((system_time() - start) / 1000);
     58}
     59
     60Uint64
     61SDL_GetPerformanceCounter(void)
     62{
     63    return system_time();
     64}
     65
     66Uint64
     67SDL_GetPerformanceFrequency(void)
     68{
     69    return 1000000;
     70}
     71
     72void
     73SDL_Delay(Uint32 ms)
     74{
     75    snooze(ms * 1000);
     76}
     77
     78#endif /* SDL_TIMER_HAIKU */
     79
     80/* vi: set ts=4 sw=4 expandtab: */