Mercurial > sdl-ios-xcode
annotate test/threadwin.c @ 5172:ededa1ccf91c
Switched the SDL 1.2 compatibility to use the window surface, so it's fast even when there's no hardware acceleration available.
This means that the YUV overlay now uses software, but that's okay since fast YUV code should be using the textures now anyway.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 03 Feb 2011 21:13:55 -0800 |
parents | dc0dfdd58f27 |
children |
rev | line source |
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0 | 1 |
2 /* Test out the multi-threaded event handling functions */ | |
3 | |
4 #include <stdlib.h> | |
5 #include <stdio.h> | |
6 #include <string.h> | |
7 | |
8 #include "SDL.h" | |
9 #include "SDL_thread.h" | |
10 | |
11 /* Are we done yet? */ | |
12 static int done = 0; | |
13 | |
14 /* Is the cursor visible? */ | |
15 static int visible = 1; | |
16 | |
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Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
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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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parents:
562
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23 } |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
562
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24 |
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25 SDL_Surface * |
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26 LoadIconSurface(char *file, Uint8 ** maskp) |
0 | 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; |
0 | 32 |
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33 *maskp = NULL; |
0 | 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 } |
0 | 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 } |
0 | 53 |
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54 /* Set the colorkey */ |
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55 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *) icon->pixels)); |
0 | 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); |
0 | 80 } |
81 | |
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82 int SDLCALL |
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83 FilterEvents(void *userdata, SDL_Event * event) |
0 | 84 { |
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85 static int reallyquit = 0; |
0 | 86 |
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87 switch (event->type) { |
0 | 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"); |
0 | 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); |
0 | 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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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); |
0 | 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 } |
0 | 129 } |
130 | |
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131 int SDLCALL |
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132 HandleMouse(void *unused) |
0 | 133 { |
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134 SDL_Event events[10]; |
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135 int i, found; |
0 | 136 |
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137 /* Handle mouse events here */ |
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138 while (!done) { |
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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) { |
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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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144 case SDL_MOUSEBUTTONUP: |
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145 if (events[i].button.state == SDL_PRESSED) { |
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146 visible = !visible; |
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147 SDL_ShowCursor(visible); |
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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) ? |
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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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158 break; |
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159 } |
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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 | 165 } |
166 | |
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167 int SDLCALL |
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168 HandleKeyboard(void *unused) |
0 | 169 { |
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170 SDL_Event events[10]; |
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171 int i, found; |
0 | 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); |
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176 for (i = 0; i < found; ++i) { |
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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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180 case SDL_KEYUP: |
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181 printf("Key '%c' (keysym==%d) has been %s\n", |
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182 events[i].key.keysym.unicode, |
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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"); |
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186 |
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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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190 } |
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191 |
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192 /* skip events now that aren't KEYUPs... */ |
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193 if (events[i].key.state == SDL_PRESSED) |
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194 break; |
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195 |
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196 if (events[i].key.keysym.sym == SDLK_f) { |
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197 int rc = 0; |
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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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201 } |
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202 |
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203 if (events[i].key.keysym.sym == SDLK_g) { |
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204 SDL_GrabMode m; |
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205 m = SDL_WM_GrabInput(SDL_GRAB_QUERY) == |
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206 SDL_GRAB_ON ? SDL_GRAB_OFF : SDL_GRAB_ON; |
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207 printf |
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208 ("attempting to toggle input grab to %s...\n", |
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209 m == SDL_GRAB_ON ? "ON" : "OFF"); |
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210 SDL_WM_GrabInput(m); |
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211 printf("attempt finished.\n"); |
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212 } |
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213 |
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214 break; |
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215 } |
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216 } |
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217 /* Give up some CPU to allow events to arrive */ |
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218 SDL_Delay(20); |
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219 } |
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220 return (0); |
0 | 221 } |
222 | |
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223 int |
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224 main(int argc, char *argv[]) |
0 | 225 { |
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226 SDL_Surface *screen; |
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227 SDL_Surface *icon; |
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228 Uint8 *icon_mask; |
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229 int i, parsed; |
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230 Uint8 *buffer; |
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231 SDL_Color palette[256]; |
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232 Uint32 init_flags; |
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233 Uint8 video_bpp; |
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234 Uint32 video_flags; |
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235 SDL_Thread *mouse_thread; |
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236 SDL_Thread *keybd_thread; |
0 | 237 |
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238 /* Set the options, based on command line arguments */ |
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239 init_flags = SDL_INIT_VIDEO; |
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240 video_bpp = 8; |
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241 video_flags = SDL_SWSURFACE; |
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242 parsed = 1; |
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243 while (parsed) { |
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244 if ((argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0)) { |
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245 video_flags |= SDL_FULLSCREEN; |
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246 argc -= 1; |
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247 argv += 1; |
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248 } else if ((argc >= 3) && (strcmp(argv[1], "-bpp") == 0)) { |
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249 video_bpp = atoi(argv[2]); |
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250 argc -= 2; |
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251 argv += 2; |
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252 } else { |
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253 parsed = 0; |
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254 } |
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255 } |
0 | 256 |
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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); |
0 | 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"); |
0 | 280 |
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281 /* Enable printable characters */ |
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282 SDL_EnableUNICODE(1); |
0 | 283 |
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284 /* Set an event filter that discards everything but QUIT */ |
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285 SDL_SetEventFilter(FilterEvents, NULL); |
0 | 286 |
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287 /* Create the event handling threads */ |
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288 mouse_thread = SDL_CreateThread(HandleMouse, NULL); |
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289 keybd_thread = SDL_CreateThread(HandleKeyboard, NULL); |
0 | 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) { |
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299 fprintf(stderr, "Couldn't lock display surface: %s\n", |
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300 SDL_GetError()); |
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301 quit(2); |
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302 } |
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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); |
0 | 311 |
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312 /* Loop, waiting for QUIT */ |
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313 while (!done) { |
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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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321 } |
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322 SDL_WaitThread(mouse_thread, NULL); |
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323 SDL_WaitThread(keybd_thread, NULL); |
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324 SDL_Quit(); |
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325 return (0); |
0 | 326 } |