Mercurial > sdl-ios-xcode
annotate src/timer/nds/SDL_systimer.c @ 5284:96a22141cf86 tip
Changed output directory of Universal libSDL.a for iOS to respect build configurations. Template generator was updated to reflect these changes as well.
author | Eric Wing <ewing . public |-at-| gmail . com> |
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date | Sat, 12 Feb 2011 21:52:30 -0800 |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
5267 | 3 Copyright (C) 1997-2011 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
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24 #ifdef SDL_TIMER_NDS |
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25 |
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26 #include <nds.h> |
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27 #include <nds/timers.h> |
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28 |
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29 #include "SDL_timer.h" |
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30 |
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32 static volatile Uint32 timer_ticks; |
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33 |
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34 static void |
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35 NDS_TimerInterrupt(void) |
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36 { |
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37 timer_ticks++; |
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38 } |
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39 |
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40 void |
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41 SDL_StartTicks(void) |
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42 { |
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43 timer_ticks = 0; |
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44 |
5275 | 45 /* Set timer 2 to fire every ms. */ |
46 timerStart(2, ClockDivider_1024, TIMER_FREQ_1024(1000), NDS_TimerInterrupt); | |
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47 } |
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48 |
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49 Uint32 |
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50 SDL_GetTicks(void) |
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51 { |
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52 return timer_ticks; |
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53 } |
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54 |
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55 void |
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56 SDL_Delay(Uint32 ms) |
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57 { |
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58 Uint32 start = SDL_GetTicks(); |
5275 | 59 while (1) { |
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60 if ((SDL_GetTicks() - start) >= ms) |
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61 break; |
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62 } |
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63 } |
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64 |
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65 #endif /* SDL_TIMER_NDS */ |
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66 |
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67 /* vi: set ts=4 sw=4 expandtab: */ |