src/timer/psp/SDL_systimer.c
author Edward Rudd <urkle@outoforder.cc>
Sat, 17 Aug 2013 18:07:29 -0400
changeset 7649 4f801cd08f3f
parent 7191 75360622e65f
child 8149 681eb46b8ac4
permissions -rw-r--r--
auto init the ticks if the GetTicks and the like methods are called before SDL_Init().. This prevents annoying game bugs such as caching SDL_GetPerformanceFrequency in a static initializer

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2013 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_thread.h"
#include "SDL_timer.h"
#include "SDL_error.h"
#include "../SDL_timer_c.h"
#include <stdlib.h>
#include <time.h>
#include <sys/time.h>
#include <pspthreadman.h>

static struct timeval start;
static SDL_bool ticks_started = SDL_FALSE;

void SDL_InitTicks(void)
{
    if (ticks_started) {
        return;
    }
    ticks_started = SDL_TRUE;

    gettimeofday(&start, NULL);
}

Uint32 SDL_GetTicks(void)
{
    if (!ticks_started) {
        SDL_InitTicks();
    }

    struct timeval now;
    Uint32 ticks;

    gettimeofday(&now, NULL);
    ticks=(now.tv_sec-start.tv_sec)*1000+(now.tv_usec-start.tv_usec)/1000;
    return(ticks);
}

Uint64
SDL_GetPerformanceCounter(void)
{
    return SDL_GetTicks();
}

Uint64
SDL_GetPerformanceFrequency(void)
{
    return 1000;
}

void SDL_Delay(Uint32 ms)
{
    const Uint32 max_delay = 0xffffffffUL / 1000;
    if(ms > max_delay)
        ms = max_delay;
    sceKernelDelayThreadCB(ms * 1000);
}

/* vim: ts=4 sw=4
 */