Mercurial > sdl-ios-xcode
annotate src/timer/macos/SDL_systimer.c @ 1302:94643e9bad18
Date: Sat, 14 Jan 2006 15:16:01 -0500
From: Andrew Fuller
Subject: [SDL] [PATCH] ML-8866 PS2->USB converter
This converter seems to go by several names -- Super Dual Box, Dual
USB Joypad, and who knows what else. Also branded differently with
different colour cases, etc. But it seems to all be the same
internals. It is a common converter used for StepMania, with several
posts Googleable trying to make it work in Linux. I got mine
yesterday and wanted to play stepmania, so I went ahead and made a
crude patch for libsdl to split this baby into two logical joysticks.
A couple notes about the patch:
This patch works well for two dance mats hooked up and playing
stepmania, however the mapping of the other buttons may be off. I
have no joystick which uses all the buttons the converter reports, so
I have no way of testing them.
The name I used 0925:8866 which is the USB ID, and what SDLjoytest-GL
reported is the name, even though lsusb shows Wisegroup, Ltd MP-8866
Dual USB Joypad, and the existing virtual joystick mapping uses the
Wisegroup... name. Not sure why the discrepency.
I'm not subscribed to this mailing list, so please CC me on any
comments to this.
-Andrew
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jan 2006 14:59:43 +0000 |
| parents | b8d311d90021 |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
769
b8d311d90021
Updated copyright information for 2004 (Happy New Year!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
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changeset
|
3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 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. | |
| 9 | |
| 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. | |
| 14 | |
| 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 | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #include <Types.h> | |
| 29 #include <Timer.h> | |
| 30 #include <OSUtils.h> | |
| 31 #include <Gestalt.h> | |
| 32 #include <Processes.h> | |
| 33 | |
| 34 #include <LowMem.h> | |
| 35 | |
| 36 #include "SDL_timer.h" | |
| 37 #include "SDL_timer_c.h" | |
| 38 | |
| 39 #include "FastTimes.h" | |
| 40 | |
| 41 #define MS_PER_TICK (1000.0/60.0) /* MacOS tick = 1/60 second */ | |
| 42 | |
| 43 | |
| 44 #define kTwoPower32 (4294967296.0) /* 2^32 */ | |
| 45 | |
| 46 static double start_tick; | |
| 47 static int is_fast_inited = 0; | |
| 48 | |
| 49 void SDL_StartTicks(void) | |
| 50 { | |
| 51 if ( ! is_fast_inited ) // important to check or FastTime may hang machine! | |
| 52 SDL_SYS_TimerInit(); | |
| 53 | |
| 54 start_tick = FastMicroseconds(); | |
| 55 } | |
| 56 | |
| 57 Uint32 SDL_GetTicks(void) | |
| 58 { | |
| 59 | |
| 60 if ( ! is_fast_inited ) | |
| 61 SDL_SYS_TimerInit(); | |
| 62 | |
| 63 return FastMilliseconds(); | |
| 64 } | |
| 65 | |
| 66 void SDL_Delay(Uint32 ms) | |
| 67 { | |
| 68 Uint32 stop, now; | |
| 69 | |
| 70 stop = SDL_GetTicks() + ms; | |
| 71 do { | |
| 72 SystemTask(); | |
| 73 | |
| 74 now = SDL_GetTicks(); | |
| 75 | |
| 76 } while ( stop > now ); | |
| 77 } | |
| 78 | |
| 79 /* | |
| 80 void SDL_StartTicks(void) | |
| 81 { | |
| 82 // FIXME: Should we implement a wrapping algorithm, like Win32? | |
| 83 } | |
| 84 | |
| 85 Uint32 SDL_GetTicks(void) | |
| 86 { | |
| 87 UnsignedWide ms; | |
| 88 | |
| 89 Microseconds (&ms); | |
| 90 | |
| 91 return ( ms.lo / 1000 ); | |
| 92 } | |
| 93 | |
| 94 void SDL_Delay(Uint32 ms) | |
| 95 { | |
| 96 | |
| 97 UnsignedWide microsecs; | |
| 98 UInt32 stop; | |
| 99 | |
| 100 Microseconds (µsecs); | |
| 101 | |
| 102 stop = microsecs.lo + (ms * 1000); | |
| 103 | |
| 104 while ( stop > microsecs.lo ) { | |
| 105 | |
| 106 SystemTask (); | |
| 107 | |
| 108 Microseconds (µsecs); | |
| 109 } | |
| 110 | |
| 111 }*/ | |
| 112 | |
| 113 /* Data to handle a single periodic alarm */ | |
| 114 typedef struct _ExtendedTimerRec | |
| 115 { | |
| 116 TMTask tmTask; | |
| 117 ProcessSerialNumber taskPSN; | |
| 118 } ExtendedTimerRec, *ExtendedTimerPtr; | |
| 119 | |
| 120 static ExtendedTimerRec gExtendedTimerRec; | |
| 121 | |
| 122 | |
| 123 int SDL_SYS_TimerInit(void) | |
| 124 { | |
| 125 FastInitialize (); | |
| 126 is_fast_inited = 1; | |
| 127 | |
| 128 return(0); | |
| 129 } | |
| 130 | |
| 131 void SDL_SYS_TimerQuit(void) | |
| 132 { | |
| 133 /* We don't need a cleanup? */ | |
| 134 return; | |
| 135 } | |
| 136 | |
| 137 /* Our Stub routine to set up and then call the real routine. */ | |
| 138 pascal void TimerCallbackProc(TMTaskPtr tmTaskPtr) | |
| 139 { | |
| 140 Uint32 ms; | |
| 141 | |
| 142 WakeUpProcess(&((ExtendedTimerPtr) tmTaskPtr)->taskPSN); | |
| 143 | |
| 144 ms = SDL_alarm_callback(SDL_alarm_interval); | |
| 145 if ( ms ) { | |
| 146 SDL_alarm_interval = ROUND_RESOLUTION(ms); | |
| 147 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, | |
| 148 SDL_alarm_interval); | |
| 149 } else { | |
| 150 SDL_alarm_interval = 0; | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 int SDL_SYS_StartTimer(void) | |
| 155 { | |
| 156 /* | |
| 157 * Configure the global structure that stores the timing information. | |
| 158 */ | |
| 159 gExtendedTimerRec.tmTask.qLink = NULL; | |
| 160 gExtendedTimerRec.tmTask.qType = 0; | |
| 161 gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc); | |
| 162 gExtendedTimerRec.tmTask.tmCount = 0; | |
| 163 gExtendedTimerRec.tmTask.tmWakeUp = 0; | |
| 164 gExtendedTimerRec.tmTask.tmReserved = 0; | |
| 165 GetCurrentProcess(&gExtendedTimerRec.taskPSN); | |
| 166 | |
| 167 /* Install the task record */ | |
| 168 InsXTime((QElemPtr)&gExtendedTimerRec.tmTask); | |
| 169 | |
| 170 /* Go! */ | |
| 171 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval); | |
| 172 return(0); | |
| 173 } | |
| 174 | |
| 175 void SDL_SYS_StopTimer(void) | |
| 176 { | |
| 177 RmvTime((QElemPtr)&gExtendedTimerRec.tmTask); | |
| 178 } |