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annotate src/events/SDL_events.c @ 3566:07c8339c95c6

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Fixed bug #905 Give the foreign window message proc more control over Windows events. This may need to be adjusted when we add the capability for the app to specify whether it wants SDL to handle input for the window or not.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 15 Dec 2009 09:20:10 +0000
parents a67a961e2171
children 0d1b16ee0bca
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 /* General event handling code for SDL */
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25
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26 #include "SDL.h"
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27 #include "SDL_events.h"
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28 #include "SDL_syswm.h"
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29 #include "SDL_thread.h"
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30 #include "SDL_sysevents.h"
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31 #include "SDL_events_c.h"
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32 #include "../timer/SDL_timer_c.h"
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33 #if !SDL_JOYSTICK_DISABLED
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34 #include "../joystick/SDL_joystick_c.h"
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35 #endif
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36
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37 /* Public data -- the event filter */
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38 SDL_EventFilter SDL_EventOK = NULL;
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39 void *SDL_EventOKParam;
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40 Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];
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41 static Uint32 SDL_eventstate = 0;
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42
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43 /* Private data -- event queue */
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44 #define MAXEVENTS 128
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45 static struct
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46 {
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47 SDL_mutex *lock;
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48 int active;
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49 int head;
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50 int tail;
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51 SDL_Event event[MAXEVENTS];
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52 int wmmsg_next;
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53 struct SDL_SysWMmsg wmmsg[MAXEVENTS];
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54 } SDL_EventQ;
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55
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56 /* Private data -- event locking structure */
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57 static struct
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58 {
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59 SDL_mutex *lock;
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60 int safe;
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61 } SDL_EventLock;
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62
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63 /* Thread functions */
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64 static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */
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65 static Uint32 event_thread; /* The event thread id */
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66
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67 void
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68 SDL_Lock_EventThread(void)
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69 {
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70 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) {
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71 /* Grab lock and spin until we're sure event thread stopped */
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72 SDL_mutexP(SDL_EventLock.lock);
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73 while (!SDL_EventLock.safe) {
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74 SDL_Delay(1);
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75 }
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76 }
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77 }
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78
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79 void
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80 SDL_Unlock_EventThread(void)
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81 {
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82 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) {
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83 SDL_mutexV(SDL_EventLock.lock);
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84 }
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85 }
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86
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87 static int SDLCALL
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88 SDL_GobbleEvents(void *unused)
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89 {
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90 event_thread = SDL_ThreadID();
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91
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92 while (SDL_EventQ.active) {
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93 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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94
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95 /* Get events from the video subsystem */
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96 if (_this) {
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97 _this->PumpEvents(_this);
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98 }
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99 #if !SDL_JOYSTICK_DISABLED
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100 /* Check for joystick state change */
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101 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
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102 SDL_JoystickUpdate();
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103 }
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104 #endif
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105
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106 /* Give up the CPU for the rest of our timeslice */
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107 SDL_EventLock.safe = 1;
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108 if (SDL_timer_running) {
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109 SDL_ThreadedTimerCheck();
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110 }
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111 SDL_Delay(1);
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112
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113 /* Check for event locking.
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114 On the P of the lock mutex, if the lock is held, this thread
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115 will wait until the lock is released before continuing. The
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116 safe flag will be set, meaning that the other thread can go
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117 about it's business. The safe flag is reset before the V,
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118 so as soon as the mutex is free, other threads can see that
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119 it's not safe to interfere with the event thread.
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120 */
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121 SDL_mutexP(SDL_EventLock.lock);
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122 SDL_EventLock.safe = 0;
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123 SDL_mutexV(SDL_EventLock.lock);
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124 }
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125 SDL_SetTimerThreaded(0);
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126 event_thread = 0;
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127 return (0);
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128 }
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129
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130 static int
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131 SDL_StartEventThread(Uint32 flags)
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132 {
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133 /* Reset everything to zero */
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134 SDL_EventThread = NULL;
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135 SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock));
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136
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137 /* Create the lock and set ourselves active */
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138 #if !SDL_THREADS_DISABLED
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139 SDL_EventQ.lock = SDL_CreateMutex();
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140 if (SDL_EventQ.lock == NULL) {
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141 return (-1);
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142 }
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143 #endif /* !SDL_THREADS_DISABLED */
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144 SDL_EventQ.active = 1;
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145
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146 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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147 SDL_EventLock.lock = SDL_CreateMutex();
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148 if (SDL_EventLock.lock == NULL) {
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149 return (-1);
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150 }
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151 SDL_EventLock.safe = 0;
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152
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153 /* The event thread will handle timers too */
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154 SDL_SetTimerThreaded(2);
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155 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
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156 #undef SDL_CreateThread
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157 SDL_EventThread =
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158 SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL);
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159 #else
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160 SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL);
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161 #endif
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162 if (SDL_EventThread == NULL) {
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163 return (-1);
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164 }
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165 } else {
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166 event_thread = 0;
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167 }
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168 return (0);
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169 }
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170
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171 static void
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172 SDL_StopEventThread(void)
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173 {
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174 SDL_EventQ.active = 0;
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175 if (SDL_EventThread) {
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176 SDL_WaitThread(SDL_EventThread, NULL);
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177 SDL_EventThread = NULL;
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178 SDL_DestroyMutex(SDL_EventLock.lock);
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179 }
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180 if (SDL_EventQ.lock) {
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181 SDL_DestroyMutex(SDL_EventQ.lock);
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182 SDL_EventQ.lock = NULL;
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183 }
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184 }
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185
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186 Uint32
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187 SDL_EventThreadID(void)
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188 {
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189 return (event_thread);
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190 }
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191
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192 /* Public functions */
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193
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194 void
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195 SDL_StopEventLoop(void)
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196 {
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197 /* Halt the event thread, if running */
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198 SDL_StopEventThread();
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199
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200 /* Shutdown event handlers */
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201 SDL_KeyboardQuit();
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202 SDL_MouseQuit();
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203 SDL_QuitQuit();
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204
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205 /* Clean out EventQ */
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206 SDL_EventQ.head = 0;
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207 SDL_EventQ.tail = 0;
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208 SDL_EventQ.wmmsg_next = 0;
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209 }
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210
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211 /* This function (and associated calls) may be called more than once */
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212 int
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213 SDL_StartEventLoop(Uint32 flags)
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214 {
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215 int retcode;
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216
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217 /* Clean out the event queue */
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218 SDL_EventThread = NULL;
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219 SDL_EventQ.lock = NULL;
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220 SDL_StopEventLoop();
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221
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222 /* No filter to start with, process most event types */
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223 SDL_EventOK = NULL;
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224 SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents));
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225 SDL_eventstate = ~0;
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226 /* It's not save to call SDL_EventState() yet */
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227 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT);
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228 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE;
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229
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230 /* Initialize event handlers */
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231 retcode = 0;
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232 retcode += SDL_KeyboardInit();
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233 retcode += SDL_MouseInit();
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234 retcode += SDL_QuitInit();
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235 if (retcode < 0) {
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236 /* We don't expect them to fail, but... */
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237 return (-1);
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238 }
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239
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240 /* Create the lock and event thread */
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241 if (SDL_StartEventThread(flags) < 0) {
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242 SDL_StopEventLoop();
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243 return (-1);
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244 }
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245 return (0);
0
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246 }
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247
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248
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249 /* Add an event to the event queue -- called with the queue locked */
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250 static int
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251 SDL_AddEvent(SDL_Event * event)
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252 {
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253 int tail, added;
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254
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255 tail = (SDL_EventQ.tail + 1) % MAXEVENTS;
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256 if (tail == SDL_EventQ.head) {
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257 /* Overflow, drop event */
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258 added = 0;
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259 } else {
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260 SDL_EventQ.event[SDL_EventQ.tail] = *event;
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261 if (event->type == SDL_SYSWMEVENT) {
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262 /* Note that it's possible to lose an event */
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263 int next = SDL_EventQ.wmmsg_next;
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264 SDL_EventQ.wmmsg[next] = *event->syswm.msg;
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265 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
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266 &SDL_EventQ.wmmsg[next];
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267 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS;
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268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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269 SDL_EventQ.tail = tail;
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270 added = 1;
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parents: 1769
diff changeset
271 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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272 return (added);
0
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273 }
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274
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275 /* Cut an event, and return the next valid spot, or the tail */
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276 /* -- called with the queue locked */
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277 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
278 SDL_CutEvent(int spot)
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279 {
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280 if (spot == SDL_EventQ.head) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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281 SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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282 return (SDL_EventQ.head);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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283 } else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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284 SDL_EventQ.tail = spot;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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285 return (SDL_EventQ.tail);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
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286 } else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
287 /* We cut the middle -- shift everything over */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
288 {
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289 int here, next;
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290
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291 /* This can probably be optimized with SDL_memcpy() -- careful! */
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292 if (--SDL_EventQ.tail < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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293 SDL_EventQ.tail = MAXEVENTS - 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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294 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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295 for (here = spot; here != SDL_EventQ.tail; here = next) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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296 next = (here + 1) % MAXEVENTS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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297 SDL_EventQ.event[here] = SDL_EventQ.event[next];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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298 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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299 return (spot);
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300 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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301 /* NOTREACHED */
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302 }
74212992fb08 Initial revision
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parents:
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303
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304 /* Lock the event queue, take a peep at it, and unlock it */
1895
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305 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
306 SDL_PeepEvents(SDL_Event * events, int numevents, SDL_eventaction action,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
307 Uint32 mask)
0
74212992fb08 Initial revision
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diff changeset
308 {
1895
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diff changeset
309 int i, used;
0
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310
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311 /* Don't look after we've quit */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
312 if (!SDL_EventQ.active) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
313 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
314 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
315 /* Lock the event queue */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
316 used = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
317 if (SDL_mutexP(SDL_EventQ.lock) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
318 if (action == SDL_ADDEVENT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
319 for (i = 0; i < numevents; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
320 used += SDL_AddEvent(&events[i]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
321 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
322 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
323 SDL_Event tmpevent;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
324 int spot;
0
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diff changeset
325
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
326 /* If 'events' is NULL, just see if they exist */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
327 if (events == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
328 action = SDL_PEEKEVENT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
329 numevents = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
330 events = &tmpevent;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
331 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
332 spot = SDL_EventQ.head;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
333 while ((used < numevents) && (spot != SDL_EventQ.tail)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
334 if (mask & SDL_EVENTMASK(SDL_EventQ.event[spot].type)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
335 events[used++] = SDL_EventQ.event[spot];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
336 if (action == SDL_GETEVENT) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
337 spot = SDL_CutEvent(spot);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
338 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
339 spot = (spot + 1) % MAXEVENTS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
340 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
341 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
342 spot = (spot + 1) % MAXEVENTS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
343 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
344 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
345 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
346 SDL_mutexV(SDL_EventQ.lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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347 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
348 SDL_SetError("Couldn't lock event queue");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
349 used = -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
350 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
351 return (used);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
352 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
353
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
354 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: 1769
diff changeset
355 SDL_HasEvent(Uint32 mask)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
356 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
357 return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0);
0
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diff changeset
358 }
74212992fb08 Initial revision
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parents:
diff changeset
359
74212992fb08 Initial revision
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diff changeset
360 /* Run the system dependent event loops */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
361 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
362 SDL_PumpEvents(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
364 if (!SDL_EventThread) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
365 SDL_VideoDevice *_this = SDL_GetVideoDevice();
0
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diff changeset
366
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
367 /* Get events from the video subsystem */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
368 if (_this) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
369 _this->PumpEvents(_this);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
370 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
371 #if !SDL_JOYSTICK_DISABLED
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
372 /* Check for joystick state change */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
373 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
374 SDL_JoystickUpdate();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
375 }
0
74212992fb08 Initial revision
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parents:
diff changeset
376 #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: 1769
diff changeset
377 }
0
74212992fb08 Initial revision
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parents:
diff changeset
378 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 /* Public functions */
74212992fb08 Initial revision
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parents:
diff changeset
381
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
382 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
383 SDL_PollEvent(SDL_Event * event)
0
74212992fb08 Initial revision
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parents:
diff changeset
384 {
3072
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
385 return SDL_WaitEventTimeout(event, 0);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
386 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
388 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
389 SDL_WaitEvent(SDL_Event * event)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
390 {
3072
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
391 return SDL_WaitEventTimeout(event, -1);
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
392 }
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
393
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
394 int
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
395 SDL_WaitEventTimeout(SDL_Event * event, int timeout)
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
396 {
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
397 Uint32 expiration = 0;
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
398
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
399 if (timeout > 0)
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
400 expiration = SDL_GetTicks() + timeout;
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
401
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
402 for (;;) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
403 SDL_PumpEvents();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
404 switch (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
405 case -1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
406 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
407 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
408 return 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
409 case 0:
3072
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
410 if (timeout == 0) {
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
411 /* Polling and no events, just return */
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
412 return 0;
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
413 }
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
414 if (timeout > 0 && ((int) (SDL_GetTicks() - expiration) >= 0)) {
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
415 /* Timeout expired and no events */
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
416 return 0;
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
417 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
418 SDL_Delay(10);
3072
9da8f57ab92c Fixed bug #684
Sam Lantinga <slouken@libsdl.org>
parents: 2984
diff changeset
419 break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
420 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
421 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
424 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
425 SDL_PushEvent(SDL_Event * event)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
427 if (SDL_EventOK && !SDL_EventOK(SDL_EventOKParam, event)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
428 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
429 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
430 if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0) <= 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
431 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
432 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
433 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
436 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
437 SDL_SetEventFilter(SDL_EventFilter filter, void *userdata)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
438 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
439 SDL_Event bitbucket;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
440
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
441 /* Set filter and discard pending events */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
442 SDL_EventOK = filter;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
443 SDL_EventOKParam = userdata;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
444 while (SDL_PollEvent(&bitbucket) > 0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
447 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: 1769
diff changeset
448 SDL_GetEventFilter(SDL_EventFilter * filter, void **userdata)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
449 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
450 if (filter) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
451 *filter = SDL_EventOK;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
452 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
453 if (userdata) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
454 *userdata = SDL_EventOKParam;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
455 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
456 return SDL_EventOK ? SDL_TRUE : SDL_FALSE;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
459 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
460 SDL_FilterEvents(SDL_EventFilter filter, void *userdata)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
461 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
462 if (SDL_mutexP(SDL_EventQ.lock) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
463 int spot;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
464
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
465 spot = SDL_EventQ.head;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
466 while (spot != SDL_EventQ.tail) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
467 if (filter(userdata, &SDL_EventQ.event[spot])) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
468 spot = (spot + 1) % MAXEVENTS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
469 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
470 spot = SDL_CutEvent(spot);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
471 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
472 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
473 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
474 SDL_mutexV(SDL_EventQ.lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
475 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
476
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
477 Uint8
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
478 SDL_EventState(Uint8 type, int state)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
479 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
480 SDL_Event bitbucket;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
481 Uint8 current_state;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
483 /* If SDL_ALLEVENTS was specified... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
484 if (type == 0xFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
485 current_state = SDL_IGNORE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
486 for (type = 0; type < SDL_NUMEVENTS; ++type) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
487 if (SDL_ProcessEvents[type] != SDL_IGNORE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
488 current_state = SDL_ENABLE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
489 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
490 SDL_ProcessEvents[type] = state;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
491 if (state == SDL_ENABLE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
492 SDL_eventstate |= (0x00000001 << (type));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
493 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
494 SDL_eventstate &= ~(0x00000001 << (type));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
495 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
496 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
497 while (SDL_PollEvent(&bitbucket) > 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
498 return (current_state);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
499 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
501 /* Just set the state for one event type */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
502 current_state = SDL_ProcessEvents[type];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
503 switch (state) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
504 case SDL_IGNORE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
505 case SDL_ENABLE:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
506 /* Set state and discard pending events */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
507 SDL_ProcessEvents[type] = state;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
508 if (state == SDL_ENABLE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
509 SDL_eventstate |= (0x00000001 << (type));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
510 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
511 SDL_eventstate &= ~(0x00000001 << (type));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
512 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
513 while (SDL_PollEvent(&bitbucket) > 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
514 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
515 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
516 /* Querying state? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
517 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
518 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
519 return (current_state);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 /* This is a generic event handler.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
524 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
525 SDL_SendSysWMEvent(SDL_SysWMmsg * message)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
527 int posted;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
529 posted = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
530 if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
531 SDL_Event event;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
532 SDL_memset(&event, 0, sizeof(event));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
533 event.type = SDL_SYSWMEVENT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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534 event.syswm.msg = message;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
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535 posted = (SDL_PushEvent(&event) > 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
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536 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
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537 /* Update internal event state */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
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538 return (posted);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
540
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
541 /* vi: set ts=4 sw=4 expandtab: */