zenilib: zenilib/jni/external/sdl/src/timer/dummy/SDL_systimer.c Source File

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SDL_systimer.c
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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 #if defined(SDL_TIMER_DUMMY) || defined(SDL_TIMERS_DISABLED)
24
25 #include "SDL_timer.h"
26
27 static SDL_bool ticks_started = SDL_FALSE;
28
29 void
30 SDL_InitTicks(void)
31 {
32 if (ticks_started) {
33 return;
34 }
35 ticks_started = SDL_TRUE;
36 }
37
38 Uint32
39 SDL_GetTicks(void)
40 {
41 if (!ticks_started) {
42 SDL_InitTicks();
43 }
44
45 SDL_Unsupported();
46 return 0;
47 }
48
49 Uint64
50 SDL_GetPerformanceCounter(void)
51 {
52 return SDL_GetTicks();
53 }
54
55 Uint64
56 SDL_GetPerformanceFrequency(void)
57 {
58 return 1000;
59 }
60
61 void
62 SDL_Delay(Uint32 ms)
63 {
64 SDL_Unsupported();
65 }
66
67 #endif /* SDL_TIMER_DUMMY || SDL_TIMERS_DISABLED */
68
69 /* vi: set ts=4 sw=4 expandtab: */
ticks_started
static SDL_bool ticks_started
Definition: SDL_systimer.c:32
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:116
SDL_TRUE
Definition: SDL_stdinc.h:119
SDL_FALSE
Definition: SDL_stdinc.h:118
SDL_config.h
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:145
SDL_GetTicks
DECLSPEC Uint32 SDLCALL SDL_GetTicks(void)
Get the number of milliseconds since the SDL library initialization.
Definition: SDL_systimer.c:44
Uint64
uint64_t Uint64
An unsigned 64-bit integer type.
Definition: SDL_stdinc.h:154
SDL_GetPerformanceCounter
DECLSPEC Uint64 SDLCALL SDL_GetPerformanceCounter(void)
Get the current value of the high resolution counter.
Definition: SDL_systimer.c:59
SDL_Delay
DECLSPEC void SDLCALL SDL_Delay(Uint32 ms)
Wait a specified number of milliseconds before returning.
Definition: SDL_systimer.c:70
SDL_InitTicks
void SDL_InitTicks(void)
Definition: SDL_systimer.c:34
SDL_timer.h
SDL_GetPerformanceFrequency
DECLSPEC Uint64 SDLCALL SDL_GetPerformanceFrequency(void)
Get the count per second of the high resolution counter.
Definition: SDL_systimer.c:65
SDL_Unsupported
#define SDL_Unsupported()
Definition: SDL_error.h:53