src/timer/haiku/SDL_systimer.c
author Ryan C. Gordon
Thu, 14 Nov 2013 11:51:24 -0500
changeset 7981 6d538bc1b395
parent 7649 src/timer/beos/SDL_systimer.c@4f801cd08f3f
child 8093 b43765095a6f
permissions -rw-r--r--
Renamed things named after BeOS to be named after Haiku instead.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2013 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_config.h"
    22 
    23 #ifdef SDL_TIMER_HAIKU
    24 
    25 #include <os/kernel/OS.h>
    26 
    27 #include "SDL_timer.h"
    28 
    29 static bigtime_t start;
    30 static SDL_bool ticks_started = SDL_FALSE;
    31 
    32 void
    33 SDL_InitTicks(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 
    44 Uint32
    45 SDL_GetTicks(void)
    46 {
    47     if (!ticks_started) {
    48         SDL_InitTicks();
    49     }
    50 
    51     return ((system_time() - start) / 1000);
    52 }
    53 
    54 Uint64
    55 SDL_GetPerformanceCounter(void)
    56 {
    57     return system_time();
    58 }
    59 
    60 Uint64
    61 SDL_GetPerformanceFrequency(void)
    62 {
    63     return 1000000;
    64 }
    65 
    66 void
    67 SDL_Delay(Uint32 ms)
    68 {
    69     snooze(ms * 1000);
    70 }
    71 
    72 #endif /* SDL_TIMER_HAIKU */
    73 
    74 /* vi: set ts=4 sw=4 expandtab: */