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annotate src/timer/epoc/SDL_systimer.cpp @ 896:b56dc586a5ef

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Date: Tue, 16 Mar 2004 12:40:33 +0000 From: Alan Swanson Subject: [SDL] [PATCH] Linux joystick evdev axis count fix The event device configuration under Linux does not check the returned ioctl value when reading the axis information. This means extra undefined axes are returned. Note, in EV_HandleEvents, the default for case EV_ABS is to return any axis information which is fine as we have already checked for all valid absolute axes. No new axes should be returned after opening the device. (Unless, of course, the evdev allows closing and reassigning a new device while in use and I can't believe that happens.)
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 May 2004 22:48:06 +0000
parents f6ffac90895c
children 19418e4422cb
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, 1998, 1999, 2000, 2001, 2002 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 /*
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24 SDL_systimer.cpp
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25
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26 Epoc version by Hannu Viitala (hannu.j.viitala@mbnet.fi)
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27 */
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28
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29 #include <e32std.h>
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30 #include <e32hal.h>
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31
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32 extern "C" {
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33 #include "SDL_error.h"
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34 #include "SDL_thread.h"
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35 #include "SDL_timer.h"
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36 #include "SDL_timer_c.h"
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37
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38 static TUint start = 0;
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39 static TInt tickPeriodMilliSeconds;
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40
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41
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42 void SDL_StartTicks(void)
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43 {
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44 /* Set first ticks value */
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45 start = User::TickCount();
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46
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47 TTimeIntervalMicroSeconds32 period;
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48 TInt tmp = UserHal::TickPeriod(period);
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49 tickPeriodMilliSeconds = period.Int() / 1000;
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50 }
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51
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52 Uint32 SDL_GetTicks(void)
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53 {
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54 TUint deltaTics = User::TickCount() - start;
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55 return(deltaTics * tickPeriodMilliSeconds);
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56 }
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57
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58 void SDL_Delay(Uint32 ms)
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59 {
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60
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61 User::After(TTimeIntervalMicroSeconds32(ms*1000));
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62 }
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63
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64 /* Data to handle a single periodic alarm */
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65 static int timer_alive = 0;
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66 static SDL_Thread *timer = NULL;
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67
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68 static int RunTimer(void *unused)
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69 {
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70 Uint32 ms;
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71
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72 while ( timer_alive ) {
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73 if ( SDL_timer_running ) {
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74 SDL_ThreadedTimerCheck();
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75 }
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76 SDL_Delay(10);
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77 }
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78 return(0);
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79 }
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80
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81 /* This is only called if the event thread is not running */
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82 int SDL_SYS_TimerInit(void)
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83 {
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84 timer_alive = 1;
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85 timer = SDL_CreateThread(RunTimer, NULL);
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86 if ( timer == NULL )
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87 return(-1);
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88 return(SDL_SetTimerThreaded(1));
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89 }
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90
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91 void SDL_SYS_TimerQuit(void)
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92 {
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93 timer_alive = 0;
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94 if ( timer ) {
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95 SDL_WaitThread(timer, NULL);
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96 timer = NULL;
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97 }
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98 }
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99
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100 int SDL_SYS_StartTimer(void)
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101 {
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102 SDL_SetError("Internal logic error: Epoc uses threaded timer");
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103 return(-1);
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104 }
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105
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106 void SDL_SYS_StopTimer(void)
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107 {
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108 return;
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109 }
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110
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111 }; // extern "C"