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annotate src/timer/beos/SDL_systimer.c @ 4833:34fb492cefe3

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Shaped windows for Cocoa build and testshape runs, but the actual shaping doesn't work. Something, however, is definitely happening, because we get the backgrounds drawn in two different colors.
author egottlieb
date Thu, 05 Aug 2010 01:03:24 -0400
parents f7b03b6838cb
children 481dabb098ef
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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_BEOS
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25
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26 #include <be/kernel/OS.h>
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27
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28 #include "SDL_thread.h"
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29 #include "SDL_timer.h"
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30 #include "../SDL_timer_c.h"
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31
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32 static bigtime_t start;
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33
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34 void
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35 SDL_StartTicks(void)
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36 {
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37 /* Set first ticks value */
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38 start = system_time();
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39 }
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40
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41 Uint32
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42 SDL_GetTicks(void)
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43 {
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44 return ((system_time() - start) / 1000);
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45 }
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46
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47 void
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48 SDL_Delay(Uint32 ms)
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49 {
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50 snooze(ms * 1000);
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51 }
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52
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53 /* Data to handle a single periodic alarm */
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54 static int timer_alive = 0;
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55 static SDL_Thread *timer = NULL;
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56
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57 static int
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58 RunTimer(void *unused)
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59 {
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60 while (timer_alive) {
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61 if (SDL_timer_running) {
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62 SDL_ThreadedTimerCheck();
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63 }
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64 SDL_Delay(10);
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65 }
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66 return (0);
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67 }
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68
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69 /* This is only called if the event thread is not running */
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70 int
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71 SDL_SYS_TimerInit(void)
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72 {
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73 timer_alive = 1;
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74 timer = SDL_CreateThread(RunTimer, NULL);
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75 if (timer == NULL)
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76 return (-1);
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77 return (SDL_SetTimerThreaded(1));
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78 }
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79
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80 void
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81 SDL_SYS_TimerQuit(void)
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82 {
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83 timer_alive = 0;
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84 if (timer) {
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85 SDL_WaitThread(timer, NULL);
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86 timer = NULL;
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87 }
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88 }
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89
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90 int
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91 SDL_SYS_StartTimer(void)
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92 {
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93 SDL_SetError("Internal logic error: BeOS uses threaded timer");
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94 return (-1);
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95 }
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96
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97 void
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98 SDL_SYS_StopTimer(void)
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99 {
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100 return;
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101 }
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102
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103 #endif /* SDL_TIMER_BEOS */
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104 /* vi: set ts=4 sw=4 expandtab: */