2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 Sam Lantinga
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
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
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 slouken@devolution.com
26 Epoc version by Hannu Viitala (hannu.j.viitala@mbnet.fi)
34 #include "SDL_error.h"
35 #include "SDL_thread.h"
36 #include "SDL_timer.h"
37 #include "SDL_timer_c.h"
39 static TUint start = 0;
40 static TInt tickPeriodMilliSeconds;
43 void SDL_StartTicks(void)
45 /* Set first ticks value */
46 start = User::TickCount();
48 TTimeIntervalMicroSeconds32 period;
49 TInt tmp = UserHal::TickPeriod(period);
50 tickPeriodMilliSeconds = period.Int() / 1000;
53 Uint32 SDL_GetTicks(void)
55 TUint deltaTics = User::TickCount() - start;
56 return(deltaTics * tickPeriodMilliSeconds);
59 void SDL_Delay(Uint32 ms)
61 User::After(TTimeIntervalMicroSeconds32(ms*1000));
64 /* Data to handle a single periodic alarm */
65 static int timer_alive = 0;
66 static SDL_Thread *timer = NULL;
68 static int RunTimer(void *unused)
72 if (SDL_timer_running)
74 SDL_ThreadedTimerCheck();
81 /* This is only called if the event thread is not running */
82 int SDL_SYS_TimerInit(void)
87 timer = SDL_CreateThread(RunTimer, NULL);
90 return(SDL_SetTimerThreaded(1));
93 void SDL_SYS_TimerQuit(void)
98 SDL_WaitThread(timer, NULL);
103 int SDL_SYS_StartTimer(void)
105 SDL_SetError("Internal logic error: Epoc uses threaded timer");
109 void SDL_SYS_StopTimer(void)