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annotate src/events/SDL_events.c @ 1663:11775724e3fe SDL-1.3

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fine tuning indent output
author Sam Lantinga <slouken@libsdl.org>
date Sun, 28 May 2006 13:29:03 +0000
parents 782fd950bd46
children 6e7ec5cb83c3
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 Uint8 SDL_ProcessEvents[SDL_NUMEVENTS];
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38 static Uint32 SDL_eventstate = 0;
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39
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40 /* Private data -- event queue */
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41 #define MAXEVENTS 128
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42 static struct
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43 {
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44 SDL_mutex *lock;
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45 int active;
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46 int head;
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47 int tail;
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48 SDL_Event event[MAXEVENTS];
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49 int wmmsg_next;
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50 struct SDL_SysWMmsg wmmsg[MAXEVENTS];
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51 } SDL_EventQ;
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52
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53 /* Private data -- event locking structure */
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54 static struct
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55 {
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56 SDL_mutex *lock;
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57 int safe;
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58 } SDL_EventLock;
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59
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60 /* Thread functions */
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61 static SDL_Thread *SDL_EventThread = NULL; /* Thread handle */
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62 static Uint32 event_thread; /* The event thread id */
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63
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64 void
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65 SDL_Lock_EventThread (void)
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66 {
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67 if (SDL_EventThread && (SDL_ThreadID () != event_thread)) {
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68 /* Grab lock and spin until we're sure event thread stopped */
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69 SDL_mutexP (SDL_EventLock.lock);
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70 while (!SDL_EventLock.safe) {
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71 SDL_Delay (1);
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72 }
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73 }
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74 }
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75 void
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76 SDL_Unlock_EventThread (void)
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77 {
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78 if (SDL_EventThread && (SDL_ThreadID () != event_thread)) {
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79 SDL_mutexV (SDL_EventLock.lock);
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80 }
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81 }
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82
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83 #ifdef __OS2__
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84 /*
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85 * We'll increase the priority of GobbleEvents thread, so it will process
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86 * events in time for sure! For this, we need the DosSetPriority() API
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87 * from the os2.h include file.
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88 */
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89 #define INCL_DOSPROCESS
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90 #include <os2.h>
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91 #include <time.h>
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92 #endif
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93
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94 static int SDLCALL
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95 SDL_GobbleEvents (void *unused)
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96 {
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97 event_thread = SDL_ThreadID ();
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98
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99 #ifdef __OS2__
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100 #ifdef USE_DOSSETPRIORITY
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101 /* Increase thread priority, so it will process events in time for sure! */
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102 DosSetPriority (PRTYS_THREAD, PRTYC_REGULAR, +16, 0);
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103 #endif
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104 #endif
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105
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106 while (SDL_EventQ.active) {
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107 SDL_VideoDevice *_this = SDL_GetVideoDevice ();
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108
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109 /* Get events from the video subsystem */
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110 if (_this) {
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111 _this->PumpEvents (_this);
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112 }
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113
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114 /* Queue pending key-repeat events */
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115 SDL_CheckKeyRepeat ();
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116
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117 #if !SDL_JOYSTICK_DISABLED
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118 /* Check for joystick state change */
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119 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
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120 SDL_JoystickUpdate ();
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121 }
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122 #endif
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123
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124 /* Give up the CPU for the rest of our timeslice */
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125 SDL_EventLock.safe = 1;
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126 if (SDL_timer_running) {
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127 SDL_ThreadedTimerCheck ();
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128 }
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129 SDL_Delay (1);
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130
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131 /* Check for event locking.
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132 On the P of the lock mutex, if the lock is held, this thread
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133 will wait until the lock is released before continuing. The
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134 safe flag will be set, meaning that the other thread can go
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135 about it's business. The safe flag is reset before the V,
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136 so as soon as the mutex is free, other threads can see that
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137 it's not safe to interfere with the event thread.
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138 */
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139 SDL_mutexP (SDL_EventLock.lock);
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140 SDL_EventLock.safe = 0;
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141 SDL_mutexV (SDL_EventLock.lock);
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142 }
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143 SDL_SetTimerThreaded (0);
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144 event_thread = 0;
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145 return (0);
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146 }
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147
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148 static int
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149 SDL_StartEventThread (Uint32 flags)
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150 {
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151 /* Reset everything to zero */
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152 SDL_EventThread = NULL;
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153 SDL_memset (&SDL_EventLock, 0, sizeof (SDL_EventLock));
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154
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155 /* Create the lock and set ourselves active */
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156 #if !SDL_THREADS_DISABLED
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157 SDL_EventQ.lock = SDL_CreateMutex ();
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158 if (SDL_EventQ.lock == NULL) {
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159 #ifdef __MACOS__ /* MacOS classic you can't multithread, so no lock needed */
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160 ;
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161 #else
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162 return (-1);
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163 #endif
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164 }
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165 #endif /* !SDL_THREADS_DISABLED */
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166 SDL_EventQ.active = 1;
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167
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168 if ((flags & SDL_INIT_EVENTTHREAD) == SDL_INIT_EVENTTHREAD) {
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169 SDL_EventLock.lock = SDL_CreateMutex ();
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170 if (SDL_EventLock.lock == NULL) {
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171 return (-1);
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172 }
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173 SDL_EventLock.safe = 0;
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174
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175 /* The event thread will handle timers too */
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176 SDL_SetTimerThreaded (2);
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177 #if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
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178 #undef SDL_CreateThread
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179 SDL_EventThread =
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180 SDL_CreateThread (SDL_GobbleEvents, NULL, NULL, NULL);
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181 #else
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182 SDL_EventThread = SDL_CreateThread (SDL_GobbleEvents, NULL);
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183 #endif
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184 if (SDL_EventThread == NULL) {
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185 return (-1);
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186 }
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187 } else {
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188 event_thread = 0;
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189 }
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190 return (0);
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191 }
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192
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193 static void
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194 SDL_StopEventThread (void)
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195 {
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196 SDL_EventQ.active = 0;
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197 if (SDL_EventThread) {
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198 SDL_WaitThread (SDL_EventThread, NULL);
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199 SDL_EventThread = NULL;
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200 SDL_DestroyMutex (SDL_EventLock.lock);
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201 }
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202 #ifndef IPOD
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203 SDL_DestroyMutex (SDL_EventQ.lock);
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204 #endif
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205 }
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206
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207 Uint32
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208 SDL_EventThreadID (void)
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209 {
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210 return (event_thread);
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211 }
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212
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213 /* Public functions */
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214
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215 void
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216 SDL_StopEventLoop (void)
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217 {
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218 /* Halt the event thread, if running */
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219 SDL_StopEventThread ();
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220
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221 /* Shutdown event handlers */
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222 SDL_AppActiveQuit ();
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223 SDL_KeyboardQuit ();
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224 SDL_MouseQuit ();
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225 SDL_QuitQuit ();
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226
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227 /* Clean out EventQ */
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228 SDL_EventQ.head = 0;
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229 SDL_EventQ.tail = 0;
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230 SDL_EventQ.wmmsg_next = 0;
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231 }
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232
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233 /* This function (and associated calls) may be called more than once */
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234 int
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235 SDL_StartEventLoop (Uint32 flags)
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236 {
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237 int retcode;
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238
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239 /* Clean out the event queue */
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240 SDL_EventThread = NULL;
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241 SDL_EventQ.lock = NULL;
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242 SDL_StopEventLoop ();
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243
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244 /* No filter to start with, process most event types */
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245 SDL_EventOK = NULL;
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246 SDL_memset (SDL_ProcessEvents, SDL_ENABLE, sizeof (SDL_ProcessEvents));
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247 SDL_eventstate = ~0;
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248 /* It's not save to call SDL_EventState() yet */
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249 SDL_eventstate &= ~(0x00000001 << SDL_SYSWMEVENT);
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250 SDL_ProcessEvents[SDL_SYSWMEVENT] = SDL_IGNORE;
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251
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252 /* Initialize event handlers */
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253 retcode = 0;
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254 retcode += SDL_AppActiveInit ();
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255 retcode += SDL_KeyboardInit ();
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256 retcode += SDL_MouseInit ();
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257 retcode += SDL_QuitInit ();
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258 if (retcode < 0) {
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259 /* We don't expect them to fail, but... */
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260 return (-1);
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261 }
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262
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263 /* Create the lock and event thread */
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264 if (SDL_StartEventThread (flags) < 0) {
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265 SDL_StopEventLoop ();
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266 return (-1);
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267 }
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268 return (0);
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269 }
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270
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271
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272 /* Add an event to the event queue -- called with the queue locked */
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273 static int
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274 SDL_AddEvent (SDL_Event * event)
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275 {
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276 int tail, added;
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277
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278 tail = (SDL_EventQ.tail + 1) % MAXEVENTS;
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279 if (tail == SDL_EventQ.head) {
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280 /* Overflow, drop event */
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281 added = 0;
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282 } else {
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283 SDL_EventQ.event[SDL_EventQ.tail] = *event;
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284 if (event->type == SDL_SYSWMEVENT) {
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285 /* Note that it's possible to lose an event */
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286 int next = SDL_EventQ.wmmsg_next;
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287 SDL_EventQ.wmmsg[next] = *event->syswm.msg;
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288 SDL_EventQ.event[SDL_EventQ.tail].syswm.msg =
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289 &SDL_EventQ.wmmsg[next];
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290 SDL_EventQ.wmmsg_next = (next + 1) % MAXEVENTS;
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291 }
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292 SDL_EventQ.tail = tail;
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293 added = 1;
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294 }
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295 return (added);
0
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296 }
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297
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298 /* Cut an event, and return the next valid spot, or the tail */
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299 /* -- called with the queue locked */
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300 static int
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301 SDL_CutEvent (int spot)
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302 {
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303 if (spot == SDL_EventQ.head) {
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304 SDL_EventQ.head = (SDL_EventQ.head + 1) % MAXEVENTS;
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305 return (SDL_EventQ.head);
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306 } else if ((spot + 1) % MAXEVENTS == SDL_EventQ.tail) {
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307 SDL_EventQ.tail = spot;
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308 return (SDL_EventQ.tail);
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309 } else
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310 /* We cut the middle -- shift everything over */
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311 {
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312 int here, next;
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313
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314 /* This can probably be optimized with SDL_memcpy() -- careful! */
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315 if (--SDL_EventQ.tail < 0) {
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316 SDL_EventQ.tail = MAXEVENTS - 1;
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317 }
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318 for (here = spot; here != SDL_EventQ.tail; here = next) {
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319 next = (here + 1) % MAXEVENTS;
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320 SDL_EventQ.event[here] = SDL_EventQ.event[next];
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321 }
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322 return (spot);
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323 }
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324 /* NOTREACHED */
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325 }
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326
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327 /* Lock the event queue, take a peep at it, and unlock it */
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328 int
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329 SDL_PeepEvents (SDL_Event * events, int numevents, SDL_eventaction action,
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330 Uint32 mask)
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331 {
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332 int i, used;
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333
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334 /* Don't look after we've quit */
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335 if (!SDL_EventQ.active) {
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336 return (-1);
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337 }
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338 /* Lock the event queue */
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339 used = 0;
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340 if (SDL_mutexP (SDL_EventQ.lock) == 0) {
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341 if (action == SDL_ADDEVENT) {
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342 for (i = 0; i < numevents; ++i) {
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343 used += SDL_AddEvent (&events[i]);
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344 }
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345 } else {
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346 SDL_Event tmpevent;
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347 int spot;
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348
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349 /* If 'events' is NULL, just see if they exist */
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350 if (events == NULL) {
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351 action = SDL_PEEKEVENT;
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352 numevents = 1;
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353 events = &tmpevent;
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354 }
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355 spot = SDL_EventQ.head;
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356 while ((used < numevents) && (spot != SDL_EventQ.tail)) {
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357 if (mask & SDL_EVENTMASK (SDL_EventQ.event[spot].type)) {
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358 events[used++] = SDL_EventQ.event[spot];
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359 if (action == SDL_GETEVENT) {
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360 spot = SDL_CutEvent (spot);
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361 } else {
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362 spot = (spot + 1) % MAXEVENTS;
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363 }
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364 } else {
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365 spot = (spot + 1) % MAXEVENTS;
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366 }
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367 }
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368 }
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369 SDL_mutexV (SDL_EventQ.lock);
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370 } else {
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371 SDL_SetError ("Couldn't lock event queue");
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372 used = -1;
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373 }
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374 return (used);
0
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375 }
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376
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diff changeset
377 /* Run the system dependent event loops */
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378 void
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379 SDL_PumpEvents (void)
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diff changeset
380 {
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parents: 1659
diff changeset
381 if (!SDL_EventThread) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
382 SDL_VideoDevice *_this = SDL_GetVideoDevice ();
0
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parents:
diff changeset
383
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782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
384 /* Get events from the video subsystem */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
385 if (_this) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
386 _this->PumpEvents (_this);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
387 }
0
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parents:
diff changeset
388
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
389 /* Queue pending key-repeat events */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
390 SDL_CheckKeyRepeat ();
0
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diff changeset
391
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
392 #if !SDL_JOYSTICK_DISABLED
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
393 /* Check for joystick state change */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
394 if (SDL_numjoysticks && (SDL_eventstate & SDL_JOYEVENTMASK)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
395 SDL_JoystickUpdate ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
396 }
0
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parents:
diff changeset
397 #endif
1662
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diff changeset
398 }
0
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parents:
diff changeset
399 }
74212992fb08 Initial revision
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parents:
diff changeset
400
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 /* Public functions */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
403 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
404 SDL_PollEvent (SDL_Event * event)
0
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parents:
diff changeset
405 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
406 SDL_PumpEvents ();
0
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parents:
diff changeset
407
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
408 /* We can't return -1, just return 0 (no event) on error */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
409 if (SDL_PeepEvents (event, 1, SDL_GETEVENT, SDL_ALLEVENTS) <= 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
410 return 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
411 return 1;
0
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diff changeset
412 }
74212992fb08 Initial revision
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parents:
diff changeset
413
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diff changeset
414 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
415 SDL_WaitEvent (SDL_Event * event)
0
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diff changeset
416 {
1662
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parents: 1659
diff changeset
417 while (1) {
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diff changeset
418 SDL_PumpEvents ();
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
419 switch (SDL_PeepEvents (event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
420 case -1:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
421 return 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
422 case 1:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
423 return 1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
424 case 0:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
425 SDL_Delay (10);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
426 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
427 }
0
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parents:
diff changeset
428 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
430 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
431 SDL_PushEvent (SDL_Event * event)
0
74212992fb08 Initial revision
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parents:
diff changeset
432 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
433 if (SDL_PeepEvents (event, 1, SDL_ADDEVENT, 0) <= 0)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
434 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
435 return 0;
0
74212992fb08 Initial revision
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parents:
diff changeset
436 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
438 void
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
439 SDL_SetEventFilter (SDL_EventFilter filter)
0
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parents:
diff changeset
440 {
1662
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diff changeset
441 SDL_Event bitbucket;
0
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parents:
diff changeset
442
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
443 /* Set filter and discard pending events */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
444 SDL_EventOK = filter;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
445 while (SDL_PollEvent (&bitbucket) > 0);
0
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diff changeset
446 }
74212992fb08 Initial revision
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parents:
diff changeset
447
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
448 SDL_EventFilter
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
449 SDL_GetEventFilter (void)
0
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diff changeset
450 {
1662
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diff changeset
451 return (SDL_EventOK);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
452 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
453
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
454 Uint8
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
455 SDL_EventState (Uint8 type, int state)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
456 {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
457 SDL_Event bitbucket;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
458 Uint8 current_state;
0
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parents:
diff changeset
459
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
460 /* If SDL_ALLEVENTS was specified... */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
461 if (type == 0xFF) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
462 current_state = SDL_IGNORE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
463 for (type = 0; type < SDL_NUMEVENTS; ++type) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
464 if (SDL_ProcessEvents[type] != SDL_IGNORE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
465 current_state = SDL_ENABLE;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
466 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
467 SDL_ProcessEvents[type] = state;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
468 if (state == SDL_ENABLE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
469 SDL_eventstate |= (0x00000001 << (type));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
470 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
471 SDL_eventstate &= ~(0x00000001 << (type));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
472 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
473 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
474 while (SDL_PollEvent (&bitbucket) > 0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
475 return (current_state);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
476 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
478 /* Just set the state for one event type */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
479 current_state = SDL_ProcessEvents[type];
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
480 switch (state) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
481 case SDL_IGNORE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
482 case SDL_ENABLE:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
483 /* Set state and discard pending events */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
484 SDL_ProcessEvents[type] = state;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
485 if (state == SDL_ENABLE) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
486 SDL_eventstate |= (0x00000001 << (type));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
487 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
488 SDL_eventstate &= ~(0x00000001 << (type));
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
489 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
490 while (SDL_PollEvent (&bitbucket) > 0);
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
491 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
492 default:
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
493 /* Querying state? */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
494 break;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
495 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
496 return (current_state);
0
74212992fb08 Initial revision
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parents:
diff changeset
497 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498
74212992fb08 Initial revision
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parents:
diff changeset
499 /* This is a generic event handler.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500 */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
501 int
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
502 SDL_PrivateSysWMEvent (SDL_SysWMmsg * message)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
504 int posted;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
506 posted = 0;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
507 if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
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parents: 1659
diff changeset
508 SDL_Event event;
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parents: 1659
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509 SDL_memset (&event, 0, sizeof (event));
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parents: 1659
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510 event.type = SDL_SYSWMEVENT;
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parents: 1659
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511 event.syswm.msg = message;
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parents: 1659
diff changeset
512 if ((SDL_EventOK == NULL) || (*SDL_EventOK) (&event)) {
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parents: 1659
diff changeset
513 posted = 1;
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parents: 1659
diff changeset
514 SDL_PushEvent (&event);
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parents: 1659
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515 }
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parents: 1659
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516 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
517 /* Update internal event state */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
518 return (posted);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 }
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1659
diff changeset
520
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1659
diff changeset
521 /* vi: set ts=4 sw=4 expandtab: */