Mercurial > sdl-ios-xcode
annotate src/timer/beos/SDL_systimer.c @ 4347:38f22ed3a433 SDL-1.2
Option to fix bug #851
For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 17 Oct 2009 06:55:17 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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parents:
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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13 Lesser General Public License for more details. |
| 0 | 14 |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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15 You should have received a copy of the GNU Lesser General Public |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
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Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h" |
| 0 | 23 |
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Make sure code is only compiled if the appropriate subsystem is enabled
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24 #ifdef SDL_TIMER_BEOS |
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92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
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25 |
| 0 | 26 #include <be/kernel/OS.h> |
| 27 | |
| 28 #include "SDL_thread.h" | |
| 29 #include "SDL_timer.h" | |
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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30 #include "../SDL_timer_c.h" |
| 0 | 31 |
| 32 static bigtime_t start; | |
| 33 | |
| 34 void SDL_StartTicks(void) | |
| 35 { | |
| 36 /* Set first ticks value */ | |
| 37 start = system_time(); | |
| 38 } | |
| 39 | |
| 40 Uint32 SDL_GetTicks(void) | |
| 41 { | |
| 42 return((system_time()-start)/1000); | |
| 43 } | |
| 44 | |
| 45 void SDL_Delay(Uint32 ms) | |
| 46 { | |
| 47 snooze(ms*1000); | |
| 48 } | |
| 49 | |
| 50 /* Data to handle a single periodic alarm */ | |
| 51 static int timer_alive = 0; | |
| 52 static SDL_Thread *timer = NULL; | |
| 53 | |
| 54 static int RunTimer(void *unused) | |
| 55 { | |
| 56 while ( timer_alive ) { | |
| 57 if ( SDL_timer_running ) { | |
| 58 SDL_ThreadedTimerCheck(); | |
| 59 } | |
| 60 SDL_Delay(10); | |
| 61 } | |
| 62 return(0); | |
| 63 } | |
| 64 | |
| 65 /* This is only called if the event thread is not running */ | |
| 66 int SDL_SYS_TimerInit(void) | |
| 67 { | |
| 68 timer_alive = 1; | |
| 69 timer = SDL_CreateThread(RunTimer, NULL); | |
| 70 if ( timer == NULL ) | |
| 71 return(-1); | |
| 72 return(SDL_SetTimerThreaded(1)); | |
| 73 } | |
| 74 | |
| 75 void SDL_SYS_TimerQuit(void) | |
| 76 { | |
| 77 timer_alive = 0; | |
| 78 if ( timer ) { | |
| 79 SDL_WaitThread(timer, NULL); | |
| 80 timer = NULL; | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 int SDL_SYS_StartTimer(void) | |
| 85 { | |
| 86 SDL_SetError("Internal logic error: BeOS uses threaded timer"); | |
| 87 return(-1); | |
| 88 } | |
| 89 | |
| 90 void SDL_SYS_StopTimer(void) | |
| 91 { | |
| 92 return; | |
| 93 } | |
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1635
92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
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94 |
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92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
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95 #endif /* SDL_TIMER_BEOS */ |