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annotate src/timer/SDL_timer.c @ 3409:c8f580ebc96a

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Adam Strzelecki to SDL Sending a patch for fullscreen Mac OS X SDL 1.3 (SVN) Cocoa mouse position handling. In fullscreen mouse coordinates should be relative to SCREEN not to the window, which doesn't really occupy fullscreen. Without this patch mouse position (especially Y) was totally incorrect (shifted) in fullscreen.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 22 Oct 2009 04:46:11 +0000
parents 99210400e8b9
children 0d1b16ee0bca
rev   line source
1
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 #include "SDL_timer.h"
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25 #include "SDL_timer_c.h"
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26 #include "SDL_mutex.h"
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27 #include "SDL_systimer.h"
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28
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29 /* #define DEBUG_TIMERS */
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30
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31 int SDL_timer_started = 0;
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32 int SDL_timer_running = 0;
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33
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34 /* Data to handle a single periodic alarm */
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35 Uint32 SDL_alarm_interval = 0;
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36 SDL_TimerCallback SDL_alarm_callback;
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37
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38 /* Data used for a thread-based timer */
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39 static int SDL_timer_threaded = 0;
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40
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41 struct _SDL_TimerID
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42 {
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43 Uint32 interval;
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44 SDL_NewTimerCallback cb;
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45 void *param;
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46 Uint32 last_alarm;
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47 struct _SDL_TimerID *next;
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48 };
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49
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50 static SDL_TimerID SDL_timers = NULL;
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51 static SDL_mutex *SDL_timer_mutex;
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52 static volatile SDL_bool list_changed = SDL_FALSE;
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53
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54 /* Set whether or not the timer should use a thread.
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55 This should not be called while the timer subsystem is running.
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56 */
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57 int
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58 SDL_SetTimerThreaded(int value)
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59 {
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60 int retval;
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61
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62 if (SDL_timer_started) {
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63 SDL_SetError("Timer already initialized");
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64 retval = -1;
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65 } else {
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66 retval = 0;
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67 SDL_timer_threaded = value;
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68 }
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69 return retval;
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70 }
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71
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72 int
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73 SDL_TimerInit(void)
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74 {
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75 int retval;
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76
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77 retval = 0;
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78 if (SDL_timer_started) {
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79 SDL_TimerQuit();
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80 }
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81 if (!SDL_timer_threaded) {
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82 retval = SDL_SYS_TimerInit();
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83 }
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84 if (SDL_timer_threaded) {
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85 SDL_timer_mutex = SDL_CreateMutex();
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86 }
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87 if (retval == 0) {
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88 SDL_timer_started = 1;
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89 }
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90 return (retval);
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91 }
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92
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93 void
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94 SDL_TimerQuit(void)
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95 {
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96 SDL_SetTimer(0, NULL);
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97 if (SDL_timer_threaded < 2) {
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98 SDL_SYS_TimerQuit();
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99 }
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100 if (SDL_timer_threaded) {
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101 SDL_DestroyMutex(SDL_timer_mutex);
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102 SDL_timer_mutex = NULL;
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103 }
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104 SDL_timer_started = 0;
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105 SDL_timer_threaded = 0;
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106 }
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107
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108 void
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109 SDL_ThreadedTimerCheck(void)
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110 {
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111 Uint32 now, ms;
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112 SDL_TimerID t, prev, next;
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113 SDL_bool removed;
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114
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115 SDL_mutexP(SDL_timer_mutex);
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116 list_changed = SDL_FALSE;
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117 now = SDL_GetTicks();
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118 for (prev = NULL, t = SDL_timers; t; t = next) {
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119 removed = SDL_FALSE;
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120 ms = t->interval - SDL_TIMESLICE;
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121 next = t->next;
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122 if ((int) (now - t->last_alarm) > (int) ms) {
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123 struct _SDL_TimerID timer;
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124
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125 if ((now - t->last_alarm) < t->interval) {
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126 t->last_alarm += t->interval;
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127 } else {
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128 t->last_alarm = now;
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129 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
130 #ifdef DEBUG_TIMERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
131 printf("Executing timer %p (thread = %d)\n", t, SDL_ThreadID());
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
132 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
133 timer = *t;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
134 SDL_mutexV(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
135 ms = timer.cb(timer.interval, timer.param);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
136 SDL_mutexP(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
137 if (list_changed) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
138 /* Abort, list of timers modified */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
139 /* FIXME: what if ms was changed? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
140 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
141 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
142 if (ms != t->interval) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
143 if (ms) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
144 t->interval = ROUND_RESOLUTION(ms);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
145 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
146 /* Remove timer from the list */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
147 #ifdef DEBUG_TIMERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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148 printf("SDL: Removing timer %p\n", t);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents:
diff changeset
149 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
150 if (prev) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
151 prev->next = next;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
152 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
153 SDL_timers = next;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
154 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
155 SDL_free(t);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
156 --SDL_timer_running;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
157 removed = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
158 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
159 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
160 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
161 /* Don't update prev if the timer has disappeared */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
162 if (!removed) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
163 prev = t;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
164 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
165 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
166 SDL_mutexV(SDL_timer_mutex);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
167 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
168
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
169 static SDL_TimerID
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
170 SDL_AddTimerInternal(Uint32 interval, SDL_NewTimerCallback callback,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
171 void *param)
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
172 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
173 SDL_TimerID t;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
174 t = (SDL_TimerID) SDL_malloc(sizeof(struct _SDL_TimerID));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
175 if (t) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
176 t->interval = ROUND_RESOLUTION(interval);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
177 t->cb = callback;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
178 t->param = param;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
179 t->last_alarm = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
180 t->next = SDL_timers;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
181 SDL_timers = t;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
182 ++SDL_timer_running;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
183 list_changed = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
184 }
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
185 #ifdef DEBUG_TIMERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
186 printf("SDL_AddTimer(%d) = %08x num_timers = %d\n", interval, (Uint32) t,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
187 SDL_timer_running);
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
188 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
189 return t;
1028
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
190 }
5ba65305c954 Fix various problems with the timer code.
Sam Lantinga <slouken@libsdl.org>
parents: 1023
diff changeset
191
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
192 SDL_TimerID
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
193 SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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diff changeset
194 {
1895
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diff changeset
195 SDL_TimerID t;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
196 if (!SDL_timer_mutex) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
197 if (SDL_timer_started) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
198 SDL_SetError("This platform doesn't support multiple timers");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
199 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1788
diff changeset
200 SDL_SetError("You must call SDL_Init(SDL_INIT_TIMER) first");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
201 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
202 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
203 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
204 if (!SDL_timer_threaded) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
205 SDL_SetError("Multiple timers require threaded events!");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
206 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
207 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
208 SDL_mutexP(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
209 t = SDL_AddTimerInternal(interval, callback, param);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
210 SDL_mutexV(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
211 return t;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
214 SDL_bool
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
215 SDL_RemoveTimer(SDL_TimerID id)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
217 SDL_TimerID t, prev = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
218 SDL_bool removed;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
220 removed = SDL_FALSE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
221 SDL_mutexP(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
222 /* Look for id in the linked list of timers */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
223 for (t = SDL_timers; t; prev = t, t = t->next) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
224 if (t == id) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
225 if (prev) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
226 prev->next = t->next;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
227 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
228 SDL_timers = t->next;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
229 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
230 SDL_free(t);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
231 --SDL_timer_running;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
232 removed = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
233 list_changed = SDL_TRUE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
234 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
235 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
236 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 #ifdef DEBUG_TIMERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
238 printf("SDL_RemoveTimer(%08x) = %d num_timers = %d thread = %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
239 (Uint32) id, removed, SDL_timer_running, SDL_ThreadID());
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
241 SDL_mutexV(SDL_timer_mutex);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
242 return removed;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 /* Old style callback functions are wrapped through this */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
246 static Uint32 SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
247 callback_wrapper(Uint32 ms, void *param)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
249 SDL_TimerCallback func = (SDL_TimerCallback) param;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
250 return (*func) (ms);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
253 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
254 SDL_SetTimer(Uint32 ms, SDL_TimerCallback callback)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1788
diff changeset
256 int retval;
1
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257
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258 #ifdef DEBUG_TIMERS
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259 printf("SDL_SetTimer(%d)\n", ms);
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260 #endif
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261 retval = 0;
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262
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263 if (SDL_timer_threaded) {
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264 SDL_mutexP(SDL_timer_mutex);
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265 }
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266 if (SDL_timer_running) { /* Stop any currently running timer */
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267 if (SDL_timer_threaded) {
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268 while (SDL_timers) {
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269 SDL_TimerID freeme = SDL_timers;
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270 SDL_timers = SDL_timers->next;
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271 SDL_free(freeme);
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272 }
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273 SDL_timer_running = 0;
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274 list_changed = SDL_TRUE;
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275 } else {
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276 SDL_SYS_StopTimer();
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277 SDL_timer_running = 0;
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278 }
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279 }
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280 if (ms) {
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281 if (SDL_timer_threaded) {
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282 if (SDL_AddTimerInternal
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283 (ms, callback_wrapper, (void *) callback) == NULL) {
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284 retval = -1;
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285 }
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286 } else {
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287 SDL_timer_running = 1;
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288 SDL_alarm_interval = ms;
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289 SDL_alarm_callback = callback;
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290 retval = SDL_SYS_StartTimer();
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291 }
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292 }
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293 if (SDL_timer_threaded) {
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294 SDL_mutexV(SDL_timer_mutex);
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295 }
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296
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297 return retval;
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298 }
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299
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300 /* vi: set ts=4 sw=4 expandtab: */