kc3-lang/SDL/src/timer/psp/SDL_systimer.c

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• Hash : 45b774e3
  Author :
  Date : 2017-01-01T18:33:28
  

  Updated copyright for 2017

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• src/timer/psp/SDL_systimer.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2017 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_internal.h"
  
  #ifdef SDL_TIMERS_PSP
  
  #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_TicksInit(void)
  {
      if (ticks_started) {
          return;
      }
      ticks_started = SDL_TRUE;
  
      gettimeofday(&start, NULL);
  }
  
  void
  SDL_TicksQuit(void)
  {
      ticks_started = SDL_FALSE;
  }
  
  Uint32 SDL_GetTicks(void)
  {
      if (!ticks_started) {
          SDL_TicksInit();
      }
  
      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);
  }
  
  #endif /* SDL_TIMERS_PSP */
  
  /* vim: ts=4 sw=4
   */
  

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