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annotate test/threadwin.c @ 5282:8e421890cdb8

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Fixed bug #1117 There's a new event that's always sent when the window changes size, and that event is what the renderers listen for to determine if they need to rebind their context.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2011 19:02:14 -0800
parents dc0dfdd58f27
children
rev   line source
0
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1
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2 /* Test out the multi-threaded event handling functions */
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3
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4 #include <stdlib.h>
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5 #include <stdio.h>
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6 #include <string.h>
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7
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8 #include "SDL.h"
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9 #include "SDL_thread.h"
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10
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11 /* Are we done yet? */
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12 static int done = 0;
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13
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14 /* Is the cursor visible? */
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15 static int visible = 1;
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16
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17 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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18 static void
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19 quit(int rc)
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20 {
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21 SDL_Quit();
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22 exit(rc);
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23 }
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24
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25 SDL_Surface *
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26 LoadIconSurface(char *file, Uint8 ** maskp)
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27 {
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28 SDL_Surface *icon;
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29 Uint8 *pixels;
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30 Uint8 *mask;
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31 int mlen, i;
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32
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33 *maskp = NULL;
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34
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35 /* Load the icon surface */
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36 icon = SDL_LoadBMP(file);
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37 if (icon == NULL) {
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38 fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError());
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39 return (NULL);
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40 }
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41
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42 /* Check width and height */
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43 if ((icon->w % 8) != 0) {
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44 fprintf(stderr, "Icon width must be a multiple of 8!\n");
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45 SDL_FreeSurface(icon);
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46 return (NULL);
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47 }
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48 if (icon->format->palette == NULL) {
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49 fprintf(stderr, "Icon must have a palette!\n");
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50 SDL_FreeSurface(icon);
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51 return (NULL);
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52 }
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53
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54 /* Set the colorkey */
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55 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *) icon->pixels));
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56
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57 /* Create the mask */
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58 pixels = (Uint8 *) icon->pixels;
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59 printf("Transparent pixel: (%d,%d,%d)\n",
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60 icon->format->palette->colors[*pixels].r,
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61 icon->format->palette->colors[*pixels].g,
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62 icon->format->palette->colors[*pixels].b);
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63 mlen = icon->w * icon->h;
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64 mask = (Uint8 *) malloc(mlen / 8);
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65 if (mask == NULL) {
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66 fprintf(stderr, "Out of memory!\n");
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67 SDL_FreeSurface(icon);
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68 return (NULL);
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69 }
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70 memset(mask, 0, mlen / 8);
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71 for (i = 0; i < mlen;) {
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72 if (pixels[i] != *pixels)
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73 mask[i / 8] |= 0x01;
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74 ++i;
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75 if ((i % 8) != 0)
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76 mask[i / 8] <<= 1;
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77 }
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78 *maskp = mask;
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79 return (icon);
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80 }
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81
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82 int SDLCALL
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83 FilterEvents(void *userdata, SDL_Event * event)
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84 {
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85 static int reallyquit = 0;
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86
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87 switch (event->type) {
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88
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89 case SDL_ACTIVEEVENT:
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90 /* See what happened */
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91 printf("App %s ", event->active.gain ? "gained" : "lost");
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92 if (event->active.state & SDL_APPACTIVE)
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93 printf("active ");
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94 if (event->active.state & SDL_APPMOUSEFOCUS)
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95 printf("mouse ");
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96 if (event->active.state & SDL_APPINPUTFOCUS)
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97 printf("input ");
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98 printf("focus\n");
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99
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100 /* See if we are iconified or restored */
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101 if (event->active.state & SDL_APPACTIVE) {
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102 printf("App has been %s\n",
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103 event->active.gain ? "restored" : "iconified");
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104 }
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105 return (0);
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106
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107 /* This is important! Queue it if we want to quit. */
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108 case SDL_QUIT:
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109 if (!reallyquit) {
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110 reallyquit = 1;
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111 printf("Quit requested\n");
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112 return (0);
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113 }
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114 printf("Quit demanded\n");
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115 return (1);
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116
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117 /* Mouse and keyboard events go to threads */
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118 case SDL_MOUSEMOTION:
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119 case SDL_MOUSEBUTTONDOWN:
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120 case SDL_MOUSEBUTTONUP:
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121 case SDL_KEYDOWN:
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122 case SDL_KEYUP:
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123 return (1);
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124
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125 /* Drop all other events */
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126 default:
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127 return (0);
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128 }
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129 }
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130
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131 int SDLCALL
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132 HandleMouse(void *unused)
0
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133 {
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134 SDL_Event events[10];
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135 int i, found;
0
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136
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137 /* Handle mouse events here */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
138 while (!done) {
4429
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139 found = SDL_PeepEvents(events, 10, SDL_GETEVENT, SDL_MOUSEMOTION, SDL_MOUSEBUTTONUP);
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140 for (i = 0; i < found; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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141 switch (events[i].type) {
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142 /* We want to toggle visibility on buttonpress */
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143 case SDL_MOUSEBUTTONDOWN:
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diff changeset
144 case SDL_MOUSEBUTTONUP:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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145 if (events[i].button.state == SDL_PRESSED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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146 visible = !visible;
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147 SDL_ShowCursor(visible);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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148 }
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149 printf("Mouse button %d has been %s\n",
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150 events[i].button.button,
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151 (events[i].button.state == SDL_PRESSED) ?
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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152 "pressed" : "released");
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153 break;
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154 /* Show relative mouse motion */
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155 case SDL_MOUSEMOTION:
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156 printf("Mouse relative motion: {%d,%d}\n",
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157 events[i].motion.xrel, events[i].motion.yrel);
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diff changeset
158 break;
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diff changeset
159 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
160 }
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161 /* Give up some CPU to allow events to arrive */
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162 SDL_Delay(20);
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163 }
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164 return (0);
0
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165 }
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166
1895
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167 int SDLCALL
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168 HandleKeyboard(void *unused)
0
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169 {
1895
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170 SDL_Event events[10];
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171 int i, found;
0
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172
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173 /* Handle mouse events here */
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174 while (!done) {
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175 found = SDL_PeepEvents(events, 10, SDL_GETEVENT, SDL_KEYDOWN, SDL_KEYUP);
1895
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176 for (i = 0; i < found; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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177 switch (events[i].type) {
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178 /* We want to toggle visibility on buttonpress */
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179 case SDL_KEYDOWN:
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diff changeset
180 case SDL_KEYUP:
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40888832d785 Merged r3059:3060 from branches/SDL-1.2: output key event's keysym.
Ryan C. Gordon <icculus@icculus.org>
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181 printf("Key '%c' (keysym==%d) has been %s\n",
1895
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182 events[i].key.keysym.unicode,
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diff changeset
183 (int) events[i].key.keysym.sym,
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184 (events[i].key.state == SDL_PRESSED) ?
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185 "pressed" : "released");
562
cb40b26523a5 Added some code to toggle fullscreen and input grab for testing... --ryan.
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diff changeset
186
1895
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187 /* Allow hitting <ESC> to quit the app */
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188 if (events[i].key.keysym.sym == SDLK_ESCAPE) {
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189 done = 1;
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diff changeset
190 }
562
cb40b26523a5 Added some code to toggle fullscreen and input grab for testing... --ryan.
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parents: 0
diff changeset
191
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diff changeset
192 /* skip events now that aren't KEYUPs... */
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diff changeset
193 if (events[i].key.state == SDL_PRESSED)
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diff changeset
194 break;
562
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diff changeset
195
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196 if (events[i].key.keysym.sym == SDLK_f) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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197 int rc = 0;
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diff changeset
198 printf("attempting to toggle fullscreen...\n");
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199 rc = SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
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200 printf("SDL_WM_ToggleFullScreen returned %d.\n", rc);
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diff changeset
201 }
562
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Ryan C. Gordon <icculus@icculus.org>
parents: 0
diff changeset
202
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
203 if (events[i].key.keysym.sym == SDLK_g) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
204 SDL_GrabMode m;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
205 m = SDL_WM_GrabInput(SDL_GRAB_QUERY) ==
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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206 SDL_GRAB_ON ? SDL_GRAB_OFF : SDL_GRAB_ON;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
207 printf
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
208 ("attempting to toggle input grab to %s...\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
209 m == SDL_GRAB_ON ? "ON" : "OFF");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
210 SDL_WM_GrabInput(m);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
211 printf("attempt finished.\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
212 }
562
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Ryan C. Gordon <icculus@icculus.org>
parents: 0
diff changeset
213
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
214 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
215 }
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
216 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
217 /* Give up some CPU to allow events to arrive */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
218 SDL_Delay(20);
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
219 }
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
220 return (0);
0
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diff changeset
221 }
74212992fb08 Initial revision
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parents:
diff changeset
222
1895
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diff changeset
223 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
224 main(int argc, char *argv[])
0
74212992fb08 Initial revision
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diff changeset
225 {
1895
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diff changeset
226 SDL_Surface *screen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
227 SDL_Surface *icon;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
228 Uint8 *icon_mask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
229 int i, parsed;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
230 Uint8 *buffer;
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
231 SDL_Color palette[256];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
232 Uint32 init_flags;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
233 Uint8 video_bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
234 Uint32 video_flags;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
235 SDL_Thread *mouse_thread;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
236 SDL_Thread *keybd_thread;
0
74212992fb08 Initial revision
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diff changeset
237
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
238 /* Set the options, based on command line arguments */
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
239 init_flags = SDL_INIT_VIDEO;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
240 video_bpp = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
241 video_flags = SDL_SWSURFACE;
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
242 parsed = 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
243 while (parsed) {
5125
dc0dfdd58f27 Removed completely non-portable event thread hack.
Sam Lantinga <slouken@libsdl.org>
parents: 4429
diff changeset
244 if ((argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0)) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
245 video_flags |= SDL_FULLSCREEN;
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
246 argc -= 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
247 argv += 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
248 } else if ((argc >= 3) && (strcmp(argv[1], "-bpp") == 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
249 video_bpp = atoi(argv[2]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
250 argc -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
251 argv += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
252 } 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
253 parsed = 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
254 }
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
255 }
0
74212992fb08 Initial revision
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parents:
diff changeset
256
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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257 /* Initialize SDL with the requested flags */
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258 if (SDL_Init(init_flags) < 0) {
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259 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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260 return (1);
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261 }
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262
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263 /* Set the icon -- this must be done before the first mode set */
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264 icon = LoadIconSurface("icon.bmp", &icon_mask);
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265 if (icon != NULL) {
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266 SDL_WM_SetIcon(icon, icon_mask);
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267 }
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268 if (icon_mask != NULL)
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269 free(icon_mask);
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270
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271 /* Initialize the display */
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272 screen = SDL_SetVideoMode(640, 480, video_bpp, video_flags);
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273 if (screen == NULL) {
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274 fprintf(stderr, "Couldn't set 640x480x%d video mode: %s\n",
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275 video_bpp, SDL_GetError());
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276 quit(1);
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277 }
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278 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ?
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279 "fullscreen" : "windowed");
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280
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281 /* Enable printable characters */
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282 SDL_EnableUNICODE(1);
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283
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284 /* Set an event filter that discards everything but QUIT */
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285 SDL_SetEventFilter(FilterEvents, NULL);
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286
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287 /* Create the event handling threads */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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288 mouse_thread = SDL_CreateThread(HandleMouse, NULL);
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289 keybd_thread = SDL_CreateThread(HandleKeyboard, NULL);
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290
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291 /* Set the surface pixels and refresh! */
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292 for (i = 0; i < 256; ++i) {
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293 palette[i].r = 255 - i;
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294 palette[i].g = 255 - i;
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295 palette[i].b = 255 - i;
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296 }
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297 SDL_SetColors(screen, palette, 0, 256);
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298 if (SDL_LockSurface(screen) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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299 fprintf(stderr, "Couldn't lock display surface: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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300 SDL_GetError());
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301 quit(2);
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302 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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303 buffer = (Uint8 *) screen->pixels;
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304 for (i = 0; i < screen->h; ++i) {
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305 memset(buffer, (i * 255) / screen->h,
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306 screen->w * screen->format->BytesPerPixel);
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307 buffer += screen->pitch;
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308 }
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309 SDL_UnlockSurface(screen);
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310 SDL_UpdateRect(screen, 0, 0, 0, 0);
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311
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312 /* Loop, waiting for QUIT */
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diff changeset
313 while (!done) {
5125
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314 SDL_PumpEvents();
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315
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316 if (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, SDL_QUIT, SDL_QUIT)) {
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317 done = 1;
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318 }
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319 /* Give up some CPU so the events can accumulate */
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320 SDL_Delay(20);
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diff changeset
321 }
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diff changeset
322 SDL_WaitThread(mouse_thread, NULL);
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diff changeset
323 SDL_WaitThread(keybd_thread, NULL);
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diff changeset
324 SDL_Quit();
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325 return (0);
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326 }