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annotate src/events/SDL_events.c @ 2846:3d7833d5a4be

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Slight optimization of the shader, no need to scale into 0..255
author Sam Lantinga <slouken@libsdl.org>
date Sun, 07 Dec 2008 04:38:32 +0000
parents 204be4fc2726
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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_syswm.h"
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28 #include "SDL_sysevents.h"
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29 #include "SDL_events_c.h"
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30 #include "../timer/SDL_timer_c.h"
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31 #if !SDL_JOYSTICK_DISABLED
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32 #include "../joystick/SDL_joystick_c.h"
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33 #endif
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34
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35 /* Public data -- the event filter */
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36 SDL_EventFilter SDL_EventOK = NULL;
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37 void *SDL_EventOKParam;
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38 Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];
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39 static Uint32 SDL_eventstate = 0;
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40
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41 /* Private data -- event queue */
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42 #define MAXEVENTS 128
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43 static struct
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44 {
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45 SDL_mutex *lock;
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46 int active;
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47 int head;
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48 int tail;
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49 SDL_Event event[MAXEVENTS];
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50 int wmmsg_next;
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51 struct SDL_SysWMmsg wmmsg[MAXEVENTS];
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52 } SDL_EventQ;
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53
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54 /* Private data -- event locking structure */
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55 static struct
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56 {
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57 SDL_mutex *lock;
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58 int safe;
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59 } SDL_EventLock;
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60
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61 /* Thread functions */
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62 static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */
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63 static Uint32 event_thread; /* The event thread id */
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64
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65 void
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66 SDL_Lock_EventThread(void)
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67 {
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68 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) {
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69 /* Grab lock and spin until we're sure event thread stopped */
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70 SDL_mutexP(SDL_EventLock.lock);
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71 while (!SDL_EventLock.safe) {
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72 SDL_Delay(1);
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73 }
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74 }
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75 }
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76
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77 void
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78 SDL_Unlock_EventThread(void)
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79 {
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80 if (SDL_EventThread && (SDL_ThreadID() != event_thread)) {
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81 SDL_mutexV(SDL_EventLock.lock);
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82 }
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83 }
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84
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85 #ifdef __OS2__
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86 /*
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87 * We'll increase the priority of GobbleEvents thread, so it will process
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88 * events in time for sure! For this, we need the DosSetPriority() API
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89 * from the os2.h include file.
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90 */
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91 #define INCL_DOSPROCESS
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92 #include <os2.h>
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93 #include <time.h>
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94 #endif
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95
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96 static int SDLCALL
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97 SDL_GobbleEvents(void *unused)
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98 {
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99 event_thread = SDL_ThreadID();
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100
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101 #ifdef __OS2__
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102 #ifdef USE_DOSSETPRIORITY
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103 /* Increase thread priority, so it will process events in time for sure! */
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104 DosSetPriority(PRTYS_THREAD, PRTYC_REGULAR, +16, 0);
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105 #endif
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106 #endif
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107
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108 while (SDL_EventQ.active) {
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109 SDL_VideoDevice *_this = SDL_GetVideoDevice();
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110
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111 /* Get events from the video subsystem */
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112 if (_this) {
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113 _this->PumpEvents(_this);
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114 }
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115 #if !SDL_JOYSTICK_DISABLED
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116 /* Check for joystick state change */
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117 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
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118 SDL_JoystickUpdate();
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119 }
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120 #endif
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121
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122 /* Give up the CPU for the rest of our timeslice */
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123 SDL_EventLock.safe = 1;
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124 if (SDL_timer_running) {
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125 SDL_ThreadedTimerCheck();
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126 }
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127 SDL_Delay(1);
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128
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129 /* Check for event locking.
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130 On the P of the lock mutex, if the lock is held, this thread
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131 will wait until the lock is released before continuing. The
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132 safe flag will be set, meaning that the other thread can go
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133 about it's business. The safe flag is reset before the V,
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134 so as soon as the mutex is free, other threads can see that
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135 it's not safe to interfere with the event thread.
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136 */
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137 SDL_mutexP(SDL_EventLock.lock);
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138 SDL_EventLock.safe = 0;
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139 SDL_mutexV(SDL_EventLock.lock);
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140 }
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141 SDL_SetTimerThreaded(0);
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142 event_thread = 0;
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143 return (0);
0
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144 }
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145
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146 static int
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147 SDL_StartEventThread(Uint32 flags)
0
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148 {
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149 /* Reset everything to zero */
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150 SDL_EventThread = NULL;
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151 SDL_memset(&SDL_EventLock, 0, sizeof(SDL_EventLock));
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152
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153 /* Create the lock and set ourselves active */
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154 #if !SDL_THREADS_DISABLED
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155 SDL_EventQ.lock = SDL_CreateMutex();
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156 if (SDL_EventQ.lock == NULL) {
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157 return (-1);
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158 }
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159 #endif /* !SDL_THREADS_DISABLED */
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160 SDL_EventQ.active = 1;
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161
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162 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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163 SDL_EventLock.lock = SDL_CreateMutex();
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164 if (SDL_EventLock.lock == NULL) {
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165 return (-1);
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166 }
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167 SDL_EventLock.safe = 0;
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168
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169 /* The event thread will handle timers too */
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170 SDL_SetTimerThreaded(2);
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171 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
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172 #undef SDL_CreateThread
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173 SDL_EventThread =
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174 SDL_CreateThread(SDL_GobbleEvents, NULL, NULL, NULL);
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175 #else
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176 SDL_EventThread = SDL_CreateThread(SDL_GobbleEvents, NULL);
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177 #endif
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178 if (SDL_EventThread == NULL) {
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179 return (-1);
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180 }
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181 } else {
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182 event_thread = 0;
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183 }
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184 return (0);
0
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185 }
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186
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187 static void
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188 SDL_StopEventThread(void)
0
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189 {
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190 SDL_EventQ.active = 0;
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191 if (SDL_EventThread) {
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192 SDL_WaitThread(SDL_EventThread, NULL);
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193 SDL_EventThread = NULL;
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194 SDL_DestroyMutex(SDL_EventLock.lock);
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195 }
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196 #ifndef IPOD
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197 SDL_DestroyMutex(SDL_EventQ.lock);
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198 #endif
0
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199 }
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200
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201 Uint32
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202 SDL_EventThreadID(void)
0
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203 {
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204 return (event_thread);
0
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205 }
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206
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207 /* Public functions */
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208
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209 void
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210 SDL_StopEventLoop(void)
0
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211 {
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212 /* Halt the event thread, if running */
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213 SDL_StopEventThread();
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214
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215 /* Shutdown event handlers */
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216 SDL_KeyboardQuit();
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217 SDL_MouseQuit();
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218 SDL_QuitQuit();
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219
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220 /* Clean out EventQ */
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221 SDL_EventQ.head = 0;
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222 SDL_EventQ.tail = 0;
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223 SDL_EventQ.wmmsg_next = 0;
0
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224 }
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225
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226 /* This function (and associated calls) may be called more than once */
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227 int
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228 SDL_StartEventLoop(Uint32 flags)
0
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229 {
1895
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230 int retcode;
0
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231
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232 /* Clean out the event queue */
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233 SDL_EventThread = NULL;
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234 SDL_EventQ.lock = NULL;
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235 SDL_StopEventLoop();
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236
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237 /* No filter to start with, process most event types */
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238 SDL_EventOK = NULL;
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239 SDL_memset(SDL_ProcessEvents, SDL_ENABLE, sizeof(SDL_ProcessEvents));
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240 SDL_eventstate = ~0;
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241 /* It's not save to call SDL_EventState() yet */
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242 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT);
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243 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE;
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244
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245 /* Initialize event handlers */
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246 retcode = 0;
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247 retcode += SDL_KeyboardInit();
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248 retcode += SDL_MouseInit();
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249 retcode += SDL_QuitInit();
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250 if (retcode < 0) {
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251 /* We don't expect them to fail, but... */
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252 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
253 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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254
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255 /* Create the lock and event thread */
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256 if (SDL_StartEventThread(flags) < 0) {
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257 SDL_StopEventLoop();
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258 return (-1);
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diff changeset
259 }
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260 return (0);
0
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261 }
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diff changeset
262
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263
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264 /* Add an event to the event queue -- called with the queue locked */
1895
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265 static int
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266 SDL_AddEvent(SDL_Event * event)
0
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267 {
1895
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diff changeset
268 int tail, added;
0
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269
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270 tail = (SDL_EventQ.tail + 1) % MAXEVENTS;
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271 if (tail == SDL_EventQ.head) {
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272 /* Overflow, drop event */
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273 added = 0;
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274 } else {
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275 SDL_EventQ.event[SDL_EventQ.tail] = *event;
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276 if (event->type == SDL_SYSWMEVENT) {
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277 /* Note that it's possible to lose an event */
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278 int next = SDL_EventQ.wmmsg_next;
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279 SDL_EventQ.wmmsg[next] = *event->syswm.msg;
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280 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
281 &SDL_EventQ.wmmsg[next];
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282 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS;
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283 }
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 = tail;
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285 added = 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
286 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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287 return (added);
0
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288 }
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289
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290 /* Cut an event, and return the next valid spot, or the tail */
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291 /* -- called with the queue locked */
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292 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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293 SDL_CutEvent(int spot)
0
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294 {
1895
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295 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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296 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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297 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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298 } 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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299 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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300 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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301 } else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
302 /* 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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parents: 1769
diff changeset
303 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
304 int here, next;
0
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305
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
306 /* This can probably be optimized with SDL_memcpy() -- careful! */
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
307 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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diff changeset
308 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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diff changeset
309 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
310 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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diff changeset
311 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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parents: 1769
diff changeset
312 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.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
313 }
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
314 return (spot);
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
315 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
316 /* NOTREACHED */
0
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parents:
diff changeset
317 }
74212992fb08 Initial revision
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parents:
diff changeset
318
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parents:
diff changeset
319 /* Lock the event queue, take a peep at it, and unlock it */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
320 int
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
321 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.
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diff changeset
322 Uint32 mask)
0
74212992fb08 Initial revision
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parents:
diff changeset
323 {
1895
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 i, used;
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 /* 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
327 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
328 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
329 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
330 /* Lock the event queue */
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
331 used = 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
332 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
333 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
334 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
335 used += SDL_AddEvent(&events[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
336 }
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 } 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
338 SDL_Event tmpevent;
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
339 int spot;
0
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diff changeset
340
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
341 /* 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
342 if (events == NULL) {
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
343 action = SDL_PEEKEVENT;
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 numevents = 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
345 events = &tmpevent;
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
346 }
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
347 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
348 while ((used < numevents) && (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
349 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
350 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
351 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
352 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
353 } 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
354 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
355 }
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 } 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
357 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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parents: 1769
diff changeset
358 }
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
359 }
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
360 }
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
361 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
362 } 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
363 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
364 used = -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
365 }
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
366 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
367 }
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
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 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
370 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
371 {
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
372 return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, mask) > 0);
0
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parents:
diff changeset
373 }
74212992fb08 Initial revision
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parents:
diff changeset
374
74212992fb08 Initial revision
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diff changeset
375 /* 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>
parents: 1769
diff changeset
376 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
377 SDL_PumpEvents(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 {
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
379 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
380 SDL_VideoDevice *_this = SDL_GetVideoDevice();
0
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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 /* 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
383 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
384 _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
385 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
386 #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>
parents: 1769
diff changeset
387 /* 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
388 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
389 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
390 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 #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
392 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 /* Public functions */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396
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
397 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
398 SDL_PollEvent(SDL_Event * event)
0
74212992fb08 Initial revision
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parents:
diff changeset
399 {
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
400 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
401
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
402 /* We can't return -1, just return 0 (no event) on error */
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 if (SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS) <= 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
404 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
405 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
406 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407
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
408 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
409 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
410 {
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
411 while (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
412 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
413 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
414 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
415 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
416 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
417 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
418 case 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
419 SDL_Delay(10);
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.
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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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parents: 1769
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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
diff changeset
535 posted = (SDL_PushEvent(&event) > 0);
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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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
diff changeset
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
diff changeset
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: */