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annotate test/testwm2.c @ 1928:861bc36f0ab3

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Fixed crash with multiple windows
author Sam Lantinga <slouken@libsdl.org>
date Sun, 23 Jul 2006 00:19:12 +0000
parents c121d94672cb
children 7ee5297340f7
rev   line source
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /* Simple program: Move N sprites around on the screen as fast as possible */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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2
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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3 #include "SDL.h"
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4
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5 #define NUM_WINDOWS 2
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6 #define WINDOW_W 640
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7 #define WINDOW_H 480
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8
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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9 static int num_windows;
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10 static SDL_WindowID *windows;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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11
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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12 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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13 static void
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14 quit(int rc)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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15 {
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16 if (windows) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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17 SDL_free(windows);
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18 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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19 SDL_Quit();
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20 exit(rc);
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21 }
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22
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23 int
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24 main(int argc, char *argv[])
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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25 {
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26 int window_w, window_h;
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27 int i, done;
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28 SDL_Event event;
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29
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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30 /* Initialize SDL */
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31 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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32 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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33 return (1);
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34 }
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35
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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36 num_windows = NUM_WINDOWS;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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37 window_w = WINDOW_W;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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38 window_h = WINDOW_H;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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39 while (argc > 1) {
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40 if (strcmp(argv[argc - 1], "-width") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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41 window_w = atoi(argv[argc]);
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42 --argc;
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43 } else if (strcmp(argv[argc - 1], "-height") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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44 window_h = atoi(argv[argc]);
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45 --argc;
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46 } else {
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47 fprintf(stderr, "Usage: %s [-width] [-height]\n", argv[0]);
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48 quit(1);
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49 }
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50 }
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51
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52 /* Create the windows */
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53 windows = (SDL_WindowID *) SDL_malloc(num_windows * sizeof(*windows));
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54 if (!windows) {
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55 fprintf(stderr, "Out of memory!\n");
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56 quit(2);
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57 }
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58 for (i = 0; i < num_windows; ++i) {
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59 char title[32];
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60 int x, y;
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61
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62 SDL_snprintf(title, sizeof(title), "testwm %d", i + 1);
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63 if (i == 0) {
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64 x = SDL_WINDOWPOS_CENTERED;
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65 y = SDL_WINDOWPOS_CENTERED;
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66 } else {
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67 x = SDL_WINDOWPOS_UNDEFINED;
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68 y = SDL_WINDOWPOS_UNDEFINED;
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69 }
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70 windows[i] =
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71 SDL_CreateWindow(title, x, y, window_w, window_h,
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72 SDL_WINDOW_SHOWN);
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73 if (!windows[i]) {
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74 fprintf(stderr, "Couldn't create window: %s\n", SDL_GetError());
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75 quit(2);
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76 }
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77 }
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78
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79 /* Loop, blitting sprites and waiting for a keystroke */
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80 done = 0;
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81 while (!done) {
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82 /* Check for events */
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83 while (SDL_PollEvent(&event)) {
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84 switch (event.type) {
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85 case SDL_KEYDOWN:
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86 /* Any keypress quits the app... */
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87 case SDL_QUIT:
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88 done = 1;
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89 break;
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90 default:
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91 break;
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92 }
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93 }
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94 }
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95
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96 quit(0);
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97 }
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98
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99 /* vi: set ts=4 sw=4 expandtab: */