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annotate src/timer/beos/SDL_systimer.c @ 2185:2032348afed1

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This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is available and to keep people form having to install yet another library I have added the essential parts of Xmu in src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it possible for gamma support to be implemented based on a single color map per application. Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author Bob Pendleton <bob@pendleton.com>
date Thu, 12 Jul 2007 20:00:50 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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: */