cscg22-gearboy

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

SDL_systimer.c (1978B)

      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
     22#include "SDL_thread.h"
     23#include "SDL_timer.h"
     24#include "SDL_error.h"
     25#include "../SDL_timer_c.h"
     26#include <stdlib.h>
     27#include <time.h>
     28#include <sys/time.h>
     29#include <pspthreadman.h>
     30
     31static struct timeval start;
     32static SDL_bool ticks_started = SDL_FALSE;
     33
     34void
     35SDL_TicksInit(void)
     36{
     37    if (ticks_started) {
     38        return;
     39    }
     40    ticks_started = SDL_TRUE;
     41
     42    gettimeofday(&start, NULL);
     43}
     44
     45void
     46SDL_TicksQuit(void)
     47{
     48    ticks_started = SDL_FALSE;
     49}
     50
     51Uint32 SDL_GetTicks(void)
     52{
     53    if (!ticks_started) {
     54        SDL_TicksInit();
     55    }
     56
     57    struct timeval now;
     58    Uint32 ticks;
     59
     60    gettimeofday(&now, NULL);
     61    ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000;
     62    return(ticks);
     63}
     64
     65Uint64
     66SDL_GetPerformanceCounter(void)
     67{
     68    return SDL_GetTicks();
     69}
     70
     71Uint64
     72SDL_GetPerformanceFrequency(void)
     73{
     74    return 1000;
     75}
     76
     77void SDL_Delay(Uint32 ms)
     78{
     79    const Uint32 max_delay = 0xffffffffUL / 1000;
     80    if(ms > max_delay)
     81        ms = max_delay;
     82    sceKernelDelayThreadCB(ms * 1000);
     83}
     84
     85/* vim: ts=4 sw=4
     86 */