SDL
2.0
SDL_systimer.c
Go to the documentation of this file.
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#ifdef SDL_TIMER_HAIKU
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#include <kernel/OS.h>
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#include "
SDL_timer.h
"
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static
bigtime_t
start
;
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static
SDL_bool
ticks_started =
SDL_FALSE
;
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void
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SDL_TicksInit
(
void
)
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{
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if
(ticks_started) {
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return
;
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}
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ticks_started =
SDL_TRUE
;
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/* Set first ticks value */
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start
= system_time();
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}
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void
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SDL_TicksQuit
(
void
)
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{
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ticks_started =
SDL_FALSE
;
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}
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Uint32
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SDL_GetTicks
(
void
)
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{
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if
(!ticks_started) {
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SDL_TicksInit
();
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}
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return
((system_time() -
start
) / 1000);
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}
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Uint64
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SDL_GetPerformanceCounter
(
void
)
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{
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return
system_time();
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}
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Uint64
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SDL_GetPerformanceFrequency
(
void
)
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{
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return
1000000;
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}
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void
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SDL_Delay
(
Uint32
ms)
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{
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snooze(ms * 1000);
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}
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#endif
/* SDL_TIMER_HAIKU */
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/* vi: set ts=4 sw=4 expandtab: */
SDL_TRUE
Definition:
SDL_stdinc.h:142
SDL_FALSE
Definition:
SDL_stdinc.h:141
SDL_GetPerformanceFrequency
Uint64 SDL_GetPerformanceFrequency(void)
Get the count per second of the high resolution counter.
start
GLuint start
Definition:
SDL_opengl.h:1571
Uint32
uint32_t Uint32
Definition:
SDL_stdinc.h:181
Uint64
uint64_t Uint64
Definition:
SDL_stdinc.h:194
SDL_GetTicks
Uint32 SDL_GetTicks(void)
Get the number of milliseconds since the SDL library initialization.
SDL_GetPerformanceCounter
#define SDL_GetPerformanceCounter
Definition:
SDL_dynapi_overrides.h:484
SDL_Delay
#define SDL_Delay
Definition:
SDL_dynapi_overrides.h:486
SDL_bool
SDL_bool
Definition:
SDL_stdinc.h:139
SDL_TicksInit
void SDL_TicksInit(void)
SDL_TicksQuit
void SDL_TicksQuit(void)
SDL_timer.h
src
timer
haiku
SDL_systimer.c
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