Mercurial > sdl-ios-xcode
annotate test/threadwin.c @ 4311:1238da4a7112 SDL-1.2
Debian patch: f230_manpages.diff
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 10 Oct 2009 10:09:01 +0000 |
| parents | 3868bebb9f5b |
| children |
| rev | line source |
|---|---|
| 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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17 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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18 static void quit(int rc) |
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19 { |
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20 SDL_Quit(); |
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21 exit(rc); |
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22 } |
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be9c9c8f6d53
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
|
23 |
| 0 | 24 SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp) |
| 25 { | |
| 26 SDL_Surface *icon; | |
| 27 Uint8 *pixels; | |
| 28 Uint8 *mask; | |
| 29 int mlen, i; | |
| 30 | |
| 31 *maskp = NULL; | |
| 32 | |
| 33 /* Load the icon surface */ | |
| 34 icon = SDL_LoadBMP(file); | |
| 35 if ( icon == NULL ) { | |
| 36 fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); | |
| 37 return(NULL); | |
| 38 } | |
| 39 | |
| 40 /* Check width and height */ | |
| 41 if ( (icon->w%8) != 0 ) { | |
| 42 fprintf(stderr, "Icon width must be a multiple of 8!\n"); | |
| 43 SDL_FreeSurface(icon); | |
| 44 return(NULL); | |
| 45 } | |
| 46 if ( icon->format->palette == NULL ) { | |
| 47 fprintf(stderr, "Icon must have a palette!\n"); | |
| 48 SDL_FreeSurface(icon); | |
| 49 return(NULL); | |
| 50 } | |
| 51 | |
| 52 /* Set the colorkey */ | |
| 53 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels)); | |
| 54 | |
| 55 /* Create the mask */ | |
| 56 pixels = (Uint8 *)icon->pixels; | |
| 57 printf("Transparent pixel: (%d,%d,%d)\n", | |
| 58 icon->format->palette->colors[*pixels].r, | |
| 59 icon->format->palette->colors[*pixels].g, | |
| 60 icon->format->palette->colors[*pixels].b); | |
| 61 mlen = icon->w*icon->h; | |
| 62 mask = (Uint8 *)malloc(mlen/8); | |
| 63 if ( mask == NULL ) { | |
| 64 fprintf(stderr, "Out of memory!\n"); | |
| 65 SDL_FreeSurface(icon); | |
| 66 return(NULL); | |
| 67 } | |
| 68 memset(mask, 0, mlen/8); | |
| 69 for ( i=0; i<mlen; ) { | |
| 70 if ( pixels[i] != *pixels ) | |
| 71 mask[i/8] |= 0x01; | |
| 72 ++i; | |
| 73 if ( (i%8) != 0 ) | |
| 74 mask[i/8] <<= 1; | |
| 75 } | |
| 76 *maskp = mask; | |
| 77 return(icon); | |
| 78 } | |
| 79 | |
| 1769 | 80 int SDLCALL FilterEvents(const SDL_Event *event) |
| 0 | 81 { |
| 82 static int reallyquit = 0; | |
| 83 | |
| 84 switch (event->type) { | |
| 85 | |
| 86 case SDL_ACTIVEEVENT: | |
| 87 /* See what happened */ | |
| 88 printf("App %s ", | |
| 89 event->active.gain ? "gained" : "lost"); | |
| 90 if ( event->active.state & SDL_APPACTIVE ) | |
| 91 printf("active "); | |
| 92 if ( event->active.state & SDL_APPMOUSEFOCUS ) | |
| 93 printf("mouse "); | |
| 94 if ( event->active.state & SDL_APPINPUTFOCUS ) | |
| 95 printf("input "); | |
| 96 printf("focus\n"); | |
| 97 | |
| 98 /* See if we are iconified or restored */ | |
| 99 if ( event->active.state & SDL_APPACTIVE ) { | |
| 100 printf("App has been %s\n", | |
| 101 event->active.gain ? | |
| 102 "restored" : "iconified"); | |
| 103 } | |
| 104 return(0); | |
| 105 | |
| 106 /* This is important! Queue it if we want to quit. */ | |
| 107 case SDL_QUIT: | |
| 108 if ( ! reallyquit ) { | |
| 109 reallyquit = 1; | |
| 110 printf("Quit requested\n"); | |
| 111 return(0); | |
| 112 } | |
| 113 printf("Quit demanded\n"); | |
| 114 return(1); | |
| 115 | |
| 116 /* Mouse and keyboard events go to threads */ | |
| 117 case SDL_MOUSEMOTION: | |
| 118 case SDL_MOUSEBUTTONDOWN: | |
| 119 case SDL_MOUSEBUTTONUP: | |
| 120 case SDL_KEYDOWN: | |
| 121 case SDL_KEYUP: | |
| 122 return(1); | |
| 123 | |
| 124 /* Drop all other events */ | |
| 125 default: | |
| 126 return(0); | |
| 127 } | |
| 128 } | |
| 129 | |
| 1769 | 130 int SDLCALL HandleMouse(void *unused) |
| 0 | 131 { |
| 132 SDL_Event events[10]; | |
| 133 int i, found; | |
| 134 Uint32 mask; | |
| 135 | |
| 136 /* Handle mouse events here */ | |
| 137 mask = (SDL_MOUSEMOTIONMASK|SDL_MOUSEBUTTONDOWNMASK|SDL_MOUSEBUTTONUPMASK); | |
| 138 while ( ! done ) { | |
| 139 found = SDL_PeepEvents(events, 10, SDL_GETEVENT, mask); | |
| 140 for ( i=0; i<found; ++i ) { | |
| 141 switch(events[i].type) { | |
| 142 /* We want to toggle visibility on buttonpress */ | |
| 143 case SDL_MOUSEBUTTONDOWN: | |
| 144 case SDL_MOUSEBUTTONUP: | |
| 145 if ( events[i].button.state == SDL_PRESSED ) { | |
| 146 visible = !visible; | |
| 147 SDL_ShowCursor(visible); | |
| 148 } | |
| 149 printf("Mouse button %d has been %s\n", | |
| 150 events[i].button.button, | |
| 151 (events[i].button.state == SDL_PRESSED) ? | |
| 152 "pressed" : "released"); | |
| 153 break; | |
| 154 /* Show relative mouse motion */ | |
| 155 case SDL_MOUSEMOTION: | |
| 156 printf("Mouse relative motion: {%d,%d}\n", | |
| 157 events[i].motion.xrel, events[i].motion.yrel); | |
| 158 break; | |
| 159 } | |
| 160 } | |
| 161 /* Give up some CPU to allow events to arrive */ | |
| 162 SDL_Delay(20); | |
| 163 } | |
| 164 return(0); | |
| 165 } | |
| 166 | |
| 1769 | 167 int SDLCALL HandleKeyboard(void *unused) |
| 0 | 168 { |
| 169 SDL_Event events[10]; | |
| 170 int i, found; | |
| 171 Uint32 mask; | |
| 172 | |
| 173 /* Handle mouse events here */ | |
| 174 mask = (SDL_KEYDOWNMASK|SDL_KEYUPMASK); | |
| 175 while ( ! done ) { | |
| 176 found = SDL_PeepEvents(events, 10, SDL_GETEVENT, mask); | |
| 177 for ( i=0; i<found; ++i ) { | |
| 178 switch(events[i].type) { | |
| 179 /* We want to toggle visibility on buttonpress */ | |
| 180 case SDL_KEYDOWN: | |
| 181 case SDL_KEYUP: | |
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Print keysym with key events.
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182 printf("Key '%c' (keysym==%d) has been %s\n", |
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183 events[i].key.keysym.unicode, |
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184 (int) events[i].key.keysym.sym, |
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185 (events[i].key.state == SDL_PRESSED) ? |
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186 "pressed" : "released"); |
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187 |
| 0 | 188 /* Allow hitting <ESC> to quit the app */ |
| 189 if ( events[i].key.keysym.sym == SDLK_ESCAPE ) { | |
| 190 done = 1; | |
| 191 } | |
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192 |
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193 /* skip events now that aren't KEYUPs... */ |
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194 if (events[i].key.state == SDL_PRESSED) |
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195 break; |
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196 |
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197 if ( events[i].key.keysym.sym == SDLK_f ) { |
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198 int rc = 0; |
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199 printf("attempting to toggle fullscreen...\n"); |
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200 rc = SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); |
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201 printf("SDL_WM_ToggleFullScreen returned %d.\n", rc); |
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202 } |
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203 |
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204 if ( events[i].key.keysym.sym == SDLK_g ) { |
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205 SDL_GrabMode m; |
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206 m = SDL_WM_GrabInput(SDL_GRAB_QUERY) == SDL_GRAB_ON ? |
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207 SDL_GRAB_OFF : SDL_GRAB_ON; |
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208 printf("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 |
| 0 | 214 break; |
| 215 } | |
| 216 } | |
| 217 /* Give up some CPU to allow events to arrive */ | |
| 218 SDL_Delay(20); | |
| 219 } | |
| 220 return(0); | |
| 221 } | |
| 222 | |
| 223 int main(int argc, char *argv[]) | |
| 224 { | |
| 225 SDL_Surface *screen; | |
| 226 SDL_Surface *icon; | |
| 227 Uint8 *icon_mask; | |
| 228 int i, parsed; | |
| 229 Uint8 *buffer; | |
| 230 SDL_Color palette[256]; | |
| 231 Uint32 init_flags; | |
| 232 Uint8 video_bpp; | |
| 233 Uint32 video_flags; | |
| 234 SDL_Thread *mouse_thread; | |
| 235 SDL_Thread *keybd_thread; | |
| 236 | |
| 237 /* Set the options, based on command line arguments */ | |
| 238 init_flags = SDL_INIT_VIDEO; | |
| 239 video_bpp = 8; | |
| 240 video_flags = SDL_SWSURFACE; | |
| 241 parsed = 1; | |
| 242 while ( parsed ) { | |
| 243 /* If the threaded option is enabled, and the SDL library hasn't | |
| 244 been compiled with threaded events enabled, then the mouse and | |
| 245 keyboard won't respond. | |
| 246 */ | |
| 247 if ( (argc >= 2) && (strcmp(argv[1], "-threaded") == 0) ) { | |
| 248 init_flags |= SDL_INIT_EVENTTHREAD; | |
| 249 argc -= 1; | |
| 250 argv += 1; | |
| 251 printf("Running with threaded events\n"); | |
| 252 } else | |
| 253 if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) { | |
| 254 video_flags |= SDL_FULLSCREEN; | |
| 255 argc -= 1; | |
| 256 argv += 1; | |
| 257 } else | |
| 258 if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) { | |
| 259 video_bpp = atoi(argv[2]); | |
| 260 argc -= 2; | |
| 261 argv += 2; | |
| 262 } else { | |
| 263 parsed = 0; | |
| 264 } | |
| 265 } | |
| 266 | |
| 267 /* Initialize SDL with the requested flags */ | |
| 268 if ( SDL_Init(init_flags) < 0 ) { | |
| 269 fprintf(stderr, | |
| 270 "Couldn't initialize SDL: %s\n", SDL_GetError()); | |
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parents:
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271 return(1); |
| 0 | 272 } |
| 273 | |
| 274 /* Set the icon -- this must be done before the first mode set */ | |
| 275 icon = LoadIconSurface("icon.bmp", &icon_mask); | |
| 276 if ( icon != NULL ) { | |
| 277 SDL_WM_SetIcon(icon, icon_mask); | |
| 278 } | |
| 279 if ( icon_mask != NULL ) | |
| 280 free(icon_mask); | |
| 281 | |
| 282 /* Initialize the display */ | |
| 283 screen = SDL_SetVideoMode(640, 480, video_bpp, video_flags); | |
| 284 if ( screen == NULL ) { | |
| 285 fprintf(stderr, "Couldn't set 640x480x%d video mode: %s\n", | |
| 286 video_bpp, SDL_GetError()); | |
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parents:
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287 quit(1); |
| 0 | 288 } |
| 289 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? | |
| 290 "fullscreen" : "windowed"); | |
| 291 | |
| 292 /* Enable printable characters */ | |
| 293 SDL_EnableUNICODE(1); | |
| 294 | |
| 295 /* Set an event filter that discards everything but QUIT */ | |
| 296 SDL_SetEventFilter(FilterEvents); | |
| 297 | |
| 298 /* Create the event handling threads */ | |
| 299 mouse_thread = SDL_CreateThread(HandleMouse, NULL); | |
| 300 keybd_thread = SDL_CreateThread(HandleKeyboard, NULL); | |
| 301 | |
| 302 /* Set the surface pixels and refresh! */ | |
| 303 for ( i=0; i<256; ++i ) { | |
| 304 palette[i].r = 255-i; | |
| 305 palette[i].g = 255-i; | |
| 306 palette[i].b = 255-i; | |
| 307 } | |
| 308 SDL_SetColors(screen, palette, 0, 256); | |
| 309 if ( SDL_LockSurface(screen) < 0 ) { | |
| 310 fprintf(stderr, "Couldn't lock display surface: %s\n", | |
| 311 SDL_GetError()); | |
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parents:
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diff
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312 quit(2); |
| 0 | 313 } |
| 314 buffer = (Uint8 *)screen->pixels; | |
| 315 for ( i=0; i<screen->h; ++i ) { | |
| 316 memset(buffer,(i*255)/screen->h, | |
| 317 screen->w*screen->format->BytesPerPixel); | |
| 318 buffer += screen->pitch; | |
| 319 } | |
| 320 SDL_UnlockSurface(screen); | |
| 321 SDL_UpdateRect(screen, 0, 0, 0, 0); | |
| 322 | |
| 323 /* Loop, waiting for QUIT */ | |
| 324 while ( ! done ) { | |
| 325 if ( ! (init_flags & SDL_INIT_EVENTTHREAD) ) { | |
| 326 SDL_PumpEvents(); /* Needed when event thread is off */ | |
| 327 } | |
| 328 if ( SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, SDL_QUITMASK) ) { | |
| 329 done = 1; | |
| 330 } | |
| 331 /* Give up some CPU so the events can accumulate */ | |
| 332 SDL_Delay(20); | |
| 333 } | |
| 334 SDL_WaitThread(mouse_thread, NULL); | |
| 335 SDL_WaitThread(keybd_thread, NULL); | |
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336 SDL_Quit(); |
| 0 | 337 return(0); |
| 338 } |