annotate XCodeiPhoneOS/Template/SDL Application/main.c @ 2842:97ba0be8b565

Date: Sat, 06 Dec 2008 15:27:00 +0100 From: Couriersud Subject: SDL: Relative mouse movements The patch below will reenable processing of relative mouse movements. The DirectFB drivers generates those in "grabbed" mode. These ensure, that even in fullscreen mode relative movements are reported. SDLMAME depends on this for games with trackballs. Looking at the code I ask myself whether relative movements should be handled in the drivers (x11, directfb). Both x11 and directfb are able to report relative movements. This would leave it to the driver to use the most appropriate method for relative movements when at the border of a fullscreen window or being "grabbed".
author Sam Lantinga <slouken@libsdl.org>
date Sat, 06 Dec 2008 17:50:50 +0000
parents f55c87ae336b
children
rev   line source
2765
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1 /*
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2 * rectangles.c
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3 * written by Holmes Futrell
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4 * use however you want
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5 */
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6
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7 #include "SDL.h"
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8 #include <time.h>
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9
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10 #define SCREEN_WIDTH 320
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11 #define SCREEN_HEIGHT 480
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12
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13 int
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14 randomInt(int min, int max)
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15 {
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16 return min + rand() % (max - min + 1);
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17 }
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18
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19 void
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20 render(void)
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21 {
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22
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23 Uint8 r, g, b;
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24 /* Come up with a random rectangle */
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25 SDL_Rect rect;
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26 rect.w = randomInt(64, 128);
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27 rect.h = randomInt(64, 128);
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28 rect.x = randomInt(0, SCREEN_WIDTH);
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29 rect.y = randomInt(0, SCREEN_HEIGHT);
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30
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31 /* Come up with a random color */
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32 r = randomInt(50, 255);
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33 g = randomInt(50, 255);
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34 b = randomInt(50, 255);
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35
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36 /* Fill the rectangle in the color */
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37 SDL_RenderFill(r, g, b, 255, &rect);
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38
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39 /* update screen */
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40 SDL_RenderPresent();
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41
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42 }
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43
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44 int
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45 main(int argc, char *argv[])
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46 {
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47
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48 SDL_WindowID windowID;
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49 int done;
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50 SDL_Event event;
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51
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52 /* initialize SDL */
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53 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
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54 printf("Could not initialize SDL\n");
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55 }
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56
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57 /* seed random number generator */
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58 srand(time(NULL));
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59
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60 /* create window and renderer */
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61 windowID =
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62 SDL_CreateWindow(NULL, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT,
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63 SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
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64 if (windowID == 0) {
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65 printf("Could not initialize Window\n");
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66 }
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67 if (SDL_CreateRenderer(windowID, -1, 0) != 0) {
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68 printf("Could not create renderer\n");
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69 }
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70
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71 /* Fill screen with black */
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72 SDL_RenderFill(0, 0, 0, 0, NULL);
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73
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74 /* Enter render loop, waiting for user to quit */
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75 done = 0;
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76 while (!done) {
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77 while (SDL_PollEvent(&event)) {
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78 if (event.type == SDL_QUIT) {
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79 done = 1;
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80 }
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81 }
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82 render();
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83 SDL_Delay(1);
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84 }
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85
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86 /* shutdown SDL */
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87 SDL_Quit();
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88
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89 return 0;
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90 }