Mercurial > sdl-ios-xcode
annotate src/timer/macos/SDL_systimer.c @ 1768:814f9f2c7a33
Fixed bug #80
Date: 21 Apr 2003 17:20:20 +0100
From: Alan Swanson <swanson@uklinux.net>
Subject: [SDL] New XFree 4.3 Video Mode Patch
If you look at the unsorted list of modes returned by X, here's mine;
1280 x 1024 @ 85.0 >
1024 x 768 @ 100.3 > USER
800 x 600 @ 125.5 > SET
640 x 480 @ 124.9 >
1280 x 1024 @ 75.0 ]
1280 x 1024 @ 60.0 ]
1280 x 960 @ 85.0 ] X11
1280 x 960 @ 60.0 ] AUTO
1152 x 864 @ 75.0 ]=20
1152 x 768 @ 54.8 ]
960 x 720 @ 120.0 ]
...
640 x 400 @ 85.1 ] 256k
576 x 432 @ 150.0 ] 249k PIXEL
640 x 350 @ 85.1 ] 224k COUNT
576 x 384 @ 109.6 ] 221k
...
The user set modes come first followed by X set modes which are ordered
by decreasing number of pixels and refresh.
The reason why every other library or program not using SDL working is
due to SDL scanning the modes in reverse getting X11 provided modes
modes with the lowest refresh.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 05 May 2006 05:50:26 +0000 |
| parents | 92947e3a18db |
| children | 14717b52abc0 4c270c3a88ed |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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2 SDL - Simple DirectMedia Layer |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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5 This library is free software; you can redistribute it and/or |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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6 modify it under the terms of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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7 License as published by the Free Software Foundation; either |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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10 This library is distributed in the hope that it will be useful, |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
|
1312
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Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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19 Sam Lantinga |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
20 slouken@libsdl.org |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
21 */ |
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Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
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22 #include "SDL_config.h" |
| 0 | 23 |
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parents:
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24 #ifdef SDL_TIMER_MACOS |
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92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
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25 |
| 0 | 26 #include <Types.h> |
| 27 #include <Timer.h> | |
| 28 #include <OSUtils.h> | |
| 29 #include <Gestalt.h> | |
| 30 #include <Processes.h> | |
| 31 | |
| 32 #include <LowMem.h> | |
| 33 | |
| 34 #include "SDL_timer.h" | |
|
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New configure-based build system. Still work in progress, but much improved
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35 #include "../SDL_timer_c.h" |
| 0 | 36 |
| 37 #include "FastTimes.h" | |
| 38 | |
| 39 #define MS_PER_TICK (1000.0/60.0) /* MacOS tick = 1/60 second */ | |
| 40 | |
| 41 | |
| 42 #define kTwoPower32 (4294967296.0) /* 2^32 */ | |
| 43 | |
| 44 static double start_tick; | |
| 45 static int is_fast_inited = 0; | |
| 46 | |
| 47 void SDL_StartTicks(void) | |
| 48 { | |
| 49 if ( ! is_fast_inited ) // important to check or FastTime may hang machine! | |
| 50 SDL_SYS_TimerInit(); | |
| 51 | |
| 52 start_tick = FastMicroseconds(); | |
| 53 } | |
| 54 | |
| 55 Uint32 SDL_GetTicks(void) | |
| 56 { | |
| 57 | |
| 58 if ( ! is_fast_inited ) | |
| 59 SDL_SYS_TimerInit(); | |
| 60 | |
| 61 return FastMilliseconds(); | |
| 62 } | |
| 63 | |
| 64 void SDL_Delay(Uint32 ms) | |
| 65 { | |
| 66 Uint32 stop, now; | |
| 67 | |
| 68 stop = SDL_GetTicks() + ms; | |
| 69 do { | |
| 70 SystemTask(); | |
| 71 | |
| 72 now = SDL_GetTicks(); | |
| 73 | |
| 74 } while ( stop > now ); | |
| 75 } | |
| 76 | |
| 77 /* | |
| 78 void SDL_StartTicks(void) | |
| 79 { | |
| 80 // FIXME: Should we implement a wrapping algorithm, like Win32? | |
| 81 } | |
| 82 | |
| 83 Uint32 SDL_GetTicks(void) | |
| 84 { | |
| 85 UnsignedWide ms; | |
| 86 | |
| 87 Microseconds (&ms); | |
| 88 | |
| 89 return ( ms.lo / 1000 ); | |
| 90 } | |
| 91 | |
| 92 void SDL_Delay(Uint32 ms) | |
| 93 { | |
| 94 | |
| 95 UnsignedWide microsecs; | |
| 96 UInt32 stop; | |
| 97 | |
| 98 Microseconds (µsecs); | |
| 99 | |
| 100 stop = microsecs.lo + (ms * 1000); | |
| 101 | |
| 102 while ( stop > microsecs.lo ) { | |
| 103 | |
| 104 SystemTask (); | |
| 105 | |
| 106 Microseconds (µsecs); | |
| 107 } | |
| 108 | |
| 109 }*/ | |
| 110 | |
| 111 /* Data to handle a single periodic alarm */ | |
| 112 typedef struct _ExtendedTimerRec | |
| 113 { | |
| 114 TMTask tmTask; | |
| 115 ProcessSerialNumber taskPSN; | |
| 116 } ExtendedTimerRec, *ExtendedTimerPtr; | |
| 117 | |
| 118 static ExtendedTimerRec gExtendedTimerRec; | |
| 119 | |
| 120 | |
| 121 int SDL_SYS_TimerInit(void) | |
| 122 { | |
| 123 FastInitialize (); | |
| 124 is_fast_inited = 1; | |
| 125 | |
| 126 return(0); | |
| 127 } | |
| 128 | |
| 129 void SDL_SYS_TimerQuit(void) | |
| 130 { | |
| 131 /* We don't need a cleanup? */ | |
| 132 return; | |
| 133 } | |
| 134 | |
| 135 /* Our Stub routine to set up and then call the real routine. */ | |
| 136 pascal void TimerCallbackProc(TMTaskPtr tmTaskPtr) | |
| 137 { | |
| 138 Uint32 ms; | |
| 139 | |
| 140 WakeUpProcess(&((ExtendedTimerPtr) tmTaskPtr)->taskPSN); | |
| 141 | |
| 142 ms = SDL_alarm_callback(SDL_alarm_interval); | |
| 143 if ( ms ) { | |
| 144 SDL_alarm_interval = ROUND_RESOLUTION(ms); | |
| 145 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, | |
| 146 SDL_alarm_interval); | |
| 147 } else { | |
| 148 SDL_alarm_interval = 0; | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 int SDL_SYS_StartTimer(void) | |
| 153 { | |
| 154 /* | |
| 155 * Configure the global structure that stores the timing information. | |
| 156 */ | |
| 157 gExtendedTimerRec.tmTask.qLink = NULL; | |
| 158 gExtendedTimerRec.tmTask.qType = 0; | |
| 159 gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc); | |
| 160 gExtendedTimerRec.tmTask.tmCount = 0; | |
| 161 gExtendedTimerRec.tmTask.tmWakeUp = 0; | |
| 162 gExtendedTimerRec.tmTask.tmReserved = 0; | |
| 163 GetCurrentProcess(&gExtendedTimerRec.taskPSN); | |
| 164 | |
| 165 /* Install the task record */ | |
| 166 InsXTime((QElemPtr)&gExtendedTimerRec.tmTask); | |
| 167 | |
| 168 /* Go! */ | |
| 169 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval); | |
| 170 return(0); | |
| 171 } | |
| 172 | |
| 173 void SDL_SYS_StopTimer(void) | |
| 174 { | |
| 175 RmvTime((QElemPtr)&gExtendedTimerRec.tmTask); | |
| 176 } | |
|
1635
92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
177 |
|
92947e3a18db
Make sure code is only compiled if the appropriate subsystem is enabled
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
178 #endif /* SDL_TIMER_MACOS */ |