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annotate touchTest/touchTest.c @ 4642:057e8762d2a1

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Added reading of event* for touch events.
author Jim Grandpre <jim.tla@gmail.com>
date Fri, 28 May 2010 01:26:52 -0400
parents
children 8806b78988f7
rev   line source
4642
057e8762d2a1 Added reading of event* for touch events.
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1 #include <stdio.h>
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2 #include <SDL.h>
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3 #include <math.h>
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4 #include "../src/events/SDL_touch_c.h" //BAD!!!
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5
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6 #define PI 3.1415926535897
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7 #define WIDTH 640
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8 #define HEIGHT 480
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9 #define BPP 4
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10 #define DEPTH 32
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11
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12 int mousx,mousy;
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13 int keystat[512];
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14 int bstatus;
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15
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16
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17
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18
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19 typedef struct {
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20 int x,y;
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21 } Point;
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22
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23 void handler (int sig)
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24 {
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25 printf ("\nexiting...(%d)\n", sig);
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26 exit (0);
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27 }
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28
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29 void perror_exit (char *error)
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30 {
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31 perror (error);
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32 handler (9);
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33 }
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34
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35
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36 void setpix(SDL_Surface *screen, int x, int y, int col)
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37 {
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38 Uint32 *pixmem32;
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39 Uint32 colour;
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40
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41 if((unsigned)x > screen->w) return;
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42 if((unsigned)y > screen->h) return;
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43
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44 colour = SDL_MapRGB( screen->format, (col>>16)&0xFF, (col>>8)&0xFF, col&0xFF);
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45
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46 pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
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47 *pixmem32 = colour;
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48 }
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49
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50 void drawCircle(SDL_Surface* screen,int x,int y,int r,int c)
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51 {
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52
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53 float a;
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54 for(a=0;a<2*PI;a+=1.f/(float)r)
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55 {
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56 setpix(screen,(int)(x+r*cos(a)),(int)(y+r*sin(a)),c);
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57 }
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58 }
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59
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60 void DrawScreen(SDL_Surface* screen, int h)
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61 {
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62 int x, y, xm,ym,c;
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63 if(SDL_MUSTLOCK(screen))
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64 {
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65 if(SDL_LockSurface(screen) < 0) return;
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66 }
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67 for(y = 0; y < screen->h; y++ )
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68 {
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69 for( x = 0; x < screen->w; x++ )
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70 {
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71 //setpixel(screen, x, y, (x*x)/256+3*y+h, (y*y)/256+x+h, h);
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72 //xm = (x+h)%screen->w;
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73 //ym = (y+h)%screen->w;
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74 //c = sin(h/256*2*PI)*x*y/screen->w/screen->h;
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75 //setpix(screen,x,y,255*sin(xm/screen->w*2*PI),sin(h/255*2*PI)*255*y/screen->h,c);
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76 setpix(screen,x,y,((x%255)<<16) + ((y%255)<<8) + (x+y)%255);
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77 }
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78 }
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79 drawCircle(screen,mousx,mousy,30,0xFFFFFF);
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80
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81
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82 if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
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83
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84 SDL_Flip(screen);
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85 }
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86
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87 SDL_Surface* initScreen(int width,int height)
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88 {
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89 return SDL_SetVideoMode(width, height, DEPTH,
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90 SDL_HWSURFACE | SDL_RESIZABLE);
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91 }
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92
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93 int main(int argc, char* argv[])
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94 {
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95 SDL_Surface *screen;
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96 SDL_Event event;
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97
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98 int keypress = 0;
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99 int h=0,s=1,i,j;
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100
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101 memset(keystat,0,512*sizeof(keystat[0]));
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102 if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
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103
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104 if (!(screen = initScreen(WIDTH,HEIGHT)))
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105 {
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106 SDL_Quit();
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107 return 1;
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108 }
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109
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110 while(!keystat[27]) {
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111 //Poll SDL
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112 while(SDL_PollEvent(&event))
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113 {
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114 switch (event.type)
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115 {
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116 case SDL_QUIT:
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117 keystat[27] = 1;
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118 break;
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119 case SDL_KEYDOWN:
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120 //printf("%i\n",event.key.keysym.sym);
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121 keystat[event.key.keysym.sym] = 1;
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122 //keypress = 1;
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123 break;
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124 case SDL_KEYUP:
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125 //printf("%i\n",event.key.keysym.sym);
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126 keystat[event.key.keysym.sym] = 0;
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127 //keypress = 1;
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128 break;
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129 case SDL_VIDEORESIZE:
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130 if (!(screen = initScreen(event.resize.w,
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131 event.resize.h)))
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132 {
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133 SDL_Quit();
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134 return 1;
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135 }
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136 break;
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137 case SDL_MOUSEMOTION:
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138 mousx = event.motion.x;
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139 mousy = event.motion.y;
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140 break;
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141 case SDL_MOUSEBUTTONDOWN:
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142 bstatus |= (1<<(event.button.button-1));
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143 break;
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144 case SDL_MOUSEBUTTONUP:
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145 bstatus &= ~(1<<(event.button.button-1));
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146 break;
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147 case SDL_FINGERMOTION:
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148 i = 1;
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149
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150
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151 printf("Finger: %i,x: %i, y: %i\n",event.tfinger.fingerId,
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152 event.tfinger.x,event.tfinger.y);
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153
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154 break;
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155 }
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156 }
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157 //And draw
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158 DrawScreen(screen,h);
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159 /*
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160 for(i=0;i<512;i++)
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161 if(keystat[i]) printf("%i\n",i);
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162 printf("Buttons:%i\n",bstatus);
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163 */
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164 }
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165 SDL_Quit();
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166
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167 return 0;
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168 }