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comparison src/timer/macos/SDL_systimer.c @ 1662:782fd950bd46 SDL-1.3

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Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API. WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid. The code is now run through a consistent indent format: indent -i4 -nut -nsc -br -ce The headers are being converted to automatically generate doxygen documentation.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:04:16 +0000
parents 14717b52abc0
children 4da1ee79c9af
comparison
equal deleted inserted replaced
1661:281d3f4870e5 1662:782fd950bd46
38 38
39 #if TARGET_API_MAC_CARBON 39 #if TARGET_API_MAC_CARBON
40 #define NewTimerProc NewTimerUPP 40 #define NewTimerProc NewTimerUPP
41 #endif 41 #endif
42 42
43 #define MS_PER_TICK (1000.0/60.0) /* MacOS tick = 1/60 second */ 43 #define MS_PER_TICK (1000.0/60.0) /* MacOS tick = 1/60 second */
44 44
45 45
46 #define kTwoPower32 (4294967296.0) /* 2^32 */ 46 #define kTwoPower32 (4294967296.0) /* 2^32 */
47 47
48 static double start_tick; 48 static double start_tick;
49 static int is_fast_inited = 0; 49 static int is_fast_inited = 0;
50 50
51 void SDL_StartTicks(void) 51 void
52 SDL_StartTicks (void)
52 { 53 {
53 if ( ! is_fast_inited ) // important to check or FastTime may hang machine! 54 if (!is_fast_inited) // important to check or FastTime may hang machine!
54 SDL_SYS_TimerInit(); 55 SDL_SYS_TimerInit ();
55 56
56 start_tick = FastMicroseconds(); 57 start_tick = FastMicroseconds ();
57 } 58 }
58 59
59 Uint32 SDL_GetTicks(void) 60 Uint32
61 SDL_GetTicks (void)
60 { 62 {
61 63
62 if ( ! is_fast_inited ) 64 if (!is_fast_inited)
63 SDL_SYS_TimerInit(); 65 SDL_SYS_TimerInit ();
64 66
65 return FastMilliseconds(); 67 return FastMilliseconds ();
66 } 68 }
67 69
68 void SDL_Delay(Uint32 ms) 70 void
71 SDL_Delay (Uint32 ms)
69 { 72 {
70 Uint32 stop, now; 73 Uint32 stop, now;
71 74
72 stop = SDL_GetTicks() + ms; 75 stop = SDL_GetTicks () + ms;
73 do { 76 do {
74 #if TARGET_API_MAC_CARBON 77 #if TARGET_API_MAC_CARBON
75 MPYield(); 78 MPYield ();
76 #else 79 #else
77 SystemTask(); 80 SystemTask ();
78 #endif 81 #endif
79 82
80 now = SDL_GetTicks(); 83 now = SDL_GetTicks ();
81 84
82 } while ( stop > now ); 85 }
86 while (stop > now);
83 } 87 }
84 88
85 /* 89 /*
86 void SDL_StartTicks(void) 90 void SDL_StartTicks(void)
87 { 91 {
113 117
114 Microseconds (&microsecs); 118 Microseconds (&microsecs);
115 } 119 }
116 120
117 }*/ 121 }*/
118 122
119 /* Data to handle a single periodic alarm */ 123 /* Data to handle a single periodic alarm */
120 typedef struct _ExtendedTimerRec 124 typedef struct _ExtendedTimerRec
121 { 125 {
122 TMTask tmTask; 126 TMTask tmTask;
123 ProcessSerialNumber taskPSN; 127 ProcessSerialNumber taskPSN;
124 } ExtendedTimerRec, *ExtendedTimerPtr; 128 } ExtendedTimerRec, *ExtendedTimerPtr;
125 129
126 static ExtendedTimerRec gExtendedTimerRec; 130 static ExtendedTimerRec gExtendedTimerRec;
127 131
128 132
129 int SDL_SYS_TimerInit(void) 133 int
134 SDL_SYS_TimerInit (void)
130 { 135 {
131 FastInitialize (); 136 FastInitialize ();
132 is_fast_inited = 1; 137 is_fast_inited = 1;
133 138
134 return(0); 139 return (0);
135 } 140 }
136 141
137 void SDL_SYS_TimerQuit(void) 142 void
143 SDL_SYS_TimerQuit (void)
138 { 144 {
139 /* We don't need a cleanup? */ 145 /* We don't need a cleanup? */
140 return; 146 return;
141 } 147 }
142 148
143 /* Our Stub routine to set up and then call the real routine. */ 149 /* Our Stub routine to set up and then call the real routine. */
144 pascal void TimerCallbackProc(TMTaskPtr tmTaskPtr) 150 pascal void
151 TimerCallbackProc (TMTaskPtr tmTaskPtr)
145 { 152 {
146 Uint32 ms; 153 Uint32 ms;
147 154
148 WakeUpProcess(&((ExtendedTimerPtr) tmTaskPtr)->taskPSN); 155 WakeUpProcess (&((ExtendedTimerPtr) tmTaskPtr)->taskPSN);
149 156
150 ms = SDL_alarm_callback(SDL_alarm_interval); 157 ms = SDL_alarm_callback (SDL_alarm_interval);
151 if ( ms ) { 158 if (ms) {
152 SDL_alarm_interval = ROUND_RESOLUTION(ms); 159 SDL_alarm_interval = ROUND_RESOLUTION (ms);
153 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, 160 PrimeTime ((QElemPtr) & gExtendedTimerRec.tmTask, SDL_alarm_interval);
154 SDL_alarm_interval); 161 } else {
155 } else { 162 SDL_alarm_interval = 0;
156 SDL_alarm_interval = 0; 163 }
157 }
158 } 164 }
159 165
160 int SDL_SYS_StartTimer(void) 166 int
167 SDL_SYS_StartTimer (void)
161 { 168 {
162 /* 169 /*
163 * Configure the global structure that stores the timing information. 170 * Configure the global structure that stores the timing information.
164 */ 171 */
165 gExtendedTimerRec.tmTask.qLink = NULL; 172 gExtendedTimerRec.tmTask.qLink = NULL;
166 gExtendedTimerRec.tmTask.qType = 0; 173 gExtendedTimerRec.tmTask.qType = 0;
167 gExtendedTimerRec.tmTask.tmAddr = NewTimerProc(TimerCallbackProc); 174 gExtendedTimerRec.tmTask.tmAddr = NewTimerProc (TimerCallbackProc);
168 gExtendedTimerRec.tmTask.tmCount = 0; 175 gExtendedTimerRec.tmTask.tmCount = 0;
169 gExtendedTimerRec.tmTask.tmWakeUp = 0; 176 gExtendedTimerRec.tmTask.tmWakeUp = 0;
170 gExtendedTimerRec.tmTask.tmReserved = 0; 177 gExtendedTimerRec.tmTask.tmReserved = 0;
171 GetCurrentProcess(&gExtendedTimerRec.taskPSN); 178 GetCurrentProcess (&gExtendedTimerRec.taskPSN);
172 179
173 /* Install the task record */ 180 /* Install the task record */
174 InsXTime((QElemPtr)&gExtendedTimerRec.tmTask); 181 InsXTime ((QElemPtr) & gExtendedTimerRec.tmTask);
175 182
176 /* Go! */ 183 /* Go! */
177 PrimeTime((QElemPtr)&gExtendedTimerRec.tmTask, SDL_alarm_interval); 184 PrimeTime ((QElemPtr) & gExtendedTimerRec.tmTask, SDL_alarm_interval);
178 return(0); 185 return (0);
179 } 186 }
180 187
181 void SDL_SYS_StopTimer(void) 188 void
189 SDL_SYS_StopTimer (void)
182 { 190 {
183 RmvTime((QElemPtr)&gExtendedTimerRec.tmTask); 191 RmvTime ((QElemPtr) & gExtendedTimerRec.tmTask);
184 } 192 }
185 193
186 #endif /* SDL_TIMER_MACOS */ 194 #endif /* SDL_TIMER_MACOS */
195 /* vi: set ts=4 sw=4 expandtab: */