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annotate test/testgesture.c @ 5167:97423d858a1a

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Added an intro to the features and goals of the 2D rendering API.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 10:03:55 -0800
parents c2539ff054c8
children
rev   line source
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1 /* Usage:
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2 * Spacebar to begin recording a gesture on all touches.
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3 * s to save all touches into "./gestureSave"
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4 * l to load all touches from "./gestureSave"
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5 */
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6
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7 #include <stdio.h>
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8 #include <SDL.h>
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9 #include <math.h>
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10 #include <SDL_touch.h>
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11 #include <SDL_gesture.h>
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12
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13
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14 /* Make sure we have good macros for printing 32 and 64 bit values */
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15 #ifndef PRIs32
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16 #define PRIs32 "d"
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17 #endif
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18 #ifndef PRIu32
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19 #define PRIu32 "u"
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20 #endif
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21 #ifndef PRIs64
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22 #ifdef __WIN32__
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23 #define PRIs64 "I64"
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24 #else
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25 #define PRIs64 "lld"
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26 #endif
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27 #endif
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28 #ifndef PRIu64
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29 #ifdef __WIN32__
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30 #define PRIu64 "I64u"
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31 #else
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32 #define PRIu64 "llu"
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33 #endif
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34 #endif
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35
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36 #define WIDTH 640
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37 #define HEIGHT 480
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38 #define BPP 4
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39 #define DEPTH 32
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40
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41 //MUST BE A POWER OF 2!
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42 #define EVENT_BUF_SIZE 256
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45 #define VERBOSE SDL_FALSE
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47 SDL_Event events[EVENT_BUF_SIZE];
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48 int eventWrite;
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50 int colors[7] = {0xFF,0xFF00,0xFF0000,0xFFFF00,0x00FFFF,0xFF00FF,0xFFFFFF};
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51
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52 typedef struct {
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53 float x,y;
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54 } Point;
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55
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56 typedef struct {
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57 float ang,r;
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58 Point p;
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59 } Knob;
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60
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61 Knob knob;
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62
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63 void handler (int sig)
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64 {
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65 printf ("exiting...(%d)\n", sig);
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66 exit (0);
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67 }
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68
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69 void perror_exit (char *error)
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70 {
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71 perror (error);
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72 handler (9);
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73 }
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74
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75 void setpix(SDL_Surface *screen, float _x, float _y, unsigned int col)
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76 {
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77 Uint32 *pixmem32;
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78 Uint32 colour;
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79 Uint8 r,g,b;
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80 int x = (int)_x;
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81 int y = (int)_y;
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82 float a;
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83
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84 if(x < 0 || x > screen->w) return;
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85 if(y < 0 || y > screen->h) return;
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86
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87 pixmem32 = (Uint32*) screen->pixels + y*screen->pitch/BPP + x;
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88
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89 SDL_memcpy(&colour,pixmem32,screen->format->BytesPerPixel);
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91 SDL_GetRGB(colour,screen->format,&r,&g,&b);
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92 //r = 0;g = 0; b = 0;
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93 a = (float)((col>>24)&0xFF);
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94 if(a == 0) a = 0xFF; //Hack, to make things easier.
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95 a /= 0xFF;
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96 r = (Uint8)(r*(1-a) + ((col>>16)&0xFF)*(a));
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97 g = (Uint8)(g*(1-a) + ((col>> 8)&0xFF)*(a));
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98 b = (Uint8)(b*(1-a) + ((col>> 0)&0xFF)*(a));
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99 colour = SDL_MapRGB( screen->format,r, g, b);
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102 *pixmem32 = colour;
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103 }
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104
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105 void drawLine(SDL_Surface *screen,float x0,float y0,float x1,float y1,unsigned int col) {
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106 float t;
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107 for(t=0;t<1;t+=(float)(1.f/SDL_max(SDL_fabs(x0-x1),SDL_fabs(y0-y1))))
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108 setpix(screen,x1+t*(x0-x1),y1+t*(y0-y1),col);
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109 }
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110
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111 void drawCircle(SDL_Surface* screen,float x,float y,float r,unsigned int c)
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112 {
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113 float tx,ty;
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114 float xr;
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115 for(ty = (float)-SDL_fabs(r);ty <= (float)SDL_fabs((int)r);ty++) {
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116 xr = (float)sqrt(r*r - ty*ty);
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117 if(r > 0) { //r > 0 ==> filled circle
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118 for(tx=-xr+.5f;tx<=xr-.5;tx++) {
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119 setpix(screen,x+tx,y+ty,c);
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120 }
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121 }
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122 else {
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123 setpix(screen,x-xr+.5f,y+ty,c);
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124 setpix(screen,x+xr-.5f,y+ty,c);
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125 }
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126 }
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127 }
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128
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129 void drawKnob(SDL_Surface* screen,Knob k) {
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130 drawCircle(screen,k.p.x*screen->w,k.p.y*screen->h,k.r*screen->w,0xFFFFFF);
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131 drawCircle(screen,(k.p.x+k.r/2*cosf(k.ang))*screen->w,
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132 (k.p.y+k.r/2*sinf(k.ang))*screen->h,k.r/4*screen->w,0);
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133 }
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134
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135 void DrawScreen(SDL_Surface* screen)
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136 {
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137 int x, y, i;
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138 if(SDL_MUSTLOCK(screen))
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139 {
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140 if(SDL_LockSurface(screen) < 0) return;
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141 }
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142 for(y = 0;y < screen->h;y++)
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143 for(x = 0;x < screen->w;x++)
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144 setpix(screen,(float)x,(float)y,((x%255)<<16) + ((y%255)<<8) + (x+y)%255);
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145
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146 //draw Touch History
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147 for(i = SDL_max(0,eventWrite - EVENT_BUF_SIZE);i < eventWrite;i++) {
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148 SDL_Event event = events[i&(EVENT_BUF_SIZE-1)];
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149 int age = eventWrite - i - 1;
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150 float x, y;
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151 unsigned int c, col;
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152
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153 if(event.type == SDL_FINGERMOTION ||
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154 event.type == SDL_FINGERDOWN ||
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155 event.type == SDL_FINGERUP) {
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156 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
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157 if(inTouch == NULL) continue;
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158
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159 x = ((float)event.tfinger.x)/inTouch->xres;
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160 y = ((float)event.tfinger.y)/inTouch->yres;
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161
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162 //draw the touch:
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163 c = colors[event.tfinger.touchId%7];
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164 col =
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165 ((unsigned int)(c*(.1+.85))) |
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166 ((unsigned int)((0xFF*(1-((float)age)/EVENT_BUF_SIZE))) & 0xFF)<<24;
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167
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168 if(event.type == SDL_FINGERMOTION)
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169 drawCircle(screen,x*screen->w,y*screen->h,5,col);
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170 else if(event.type == SDL_FINGERDOWN)
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171 drawCircle(screen,x*screen->w,y*screen->h,-10,col);
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172 }
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173 }
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174
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175 if(knob.p.x > 0)
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176 drawKnob(screen,knob);
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177
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178 if(SDL_MUSTLOCK(screen)) SDL_UnlockSurface(screen);
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179 SDL_Flip(screen);
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180 }
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181
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182 SDL_Surface* initScreen(int width,int height)
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183 {
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184 return SDL_SetVideoMode(width, height, DEPTH,
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185 SDL_HWSURFACE | SDL_RESIZABLE);
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186 }
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187
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188 int main(int argc, char* argv[])
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diff changeset
189 {
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diff changeset
190 SDL_Surface *screen;
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191 SDL_Event event;
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192 SDL_bool quitting = SDL_FALSE;
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193 SDL_RWops *src;
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194
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195 //gesture variables
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196 knob.r = .1f;
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197 knob.ang = 0;
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198
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199 if (SDL_Init(SDL_INIT_VIDEO) < 0 ) return 1;
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200
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201 if (!(screen = initScreen(WIDTH,HEIGHT)))
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202 {
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203 SDL_Quit();
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204 return 1;
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205 }
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206
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diff changeset
207 while(!quitting) {
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208 while(SDL_PollEvent(&event))
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209 {
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diff changeset
210 //Record _all_ events
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diff changeset
211 events[eventWrite & (EVENT_BUF_SIZE-1)] = event;
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diff changeset
212 eventWrite++;
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213
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diff changeset
214 switch (event.type)
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diff changeset
215 {
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diff changeset
216 case SDL_QUIT:
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217 quitting = SDL_TRUE;
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diff changeset
218 break;
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diff changeset
219 case SDL_KEYDOWN:
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220 switch (event.key.keysym.sym)
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221 {
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222 case SDLK_SPACE:
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diff changeset
223 SDL_RecordGesture(-1);
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diff changeset
224 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
225 case SDLK_s:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
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parents:
diff changeset
226 src = SDL_RWFromFile("gestureSave","w");
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
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parents:
diff changeset
227 printf("Wrote %i templates\n",SDL_SaveAllDollarTemplates(src));
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
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parents:
diff changeset
228 SDL_RWclose(src);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
229 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
230 case SDLK_l:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
231 src = SDL_RWFromFile("gestureSave","r");
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
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parents:
diff changeset
232 printf("Loaded: %i\n",SDL_LoadDollarTemplates(-1,src));
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
233 SDL_RWclose(src);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
234 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
235 case SDLK_ESCAPE:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
236 quitting = SDL_TRUE;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
237 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
238 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
239 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
240 case SDL_VIDEORESIZE:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
241 if (!(screen = initScreen(event.resize.w,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
242 event.resize.h)))
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
243 {
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
244 SDL_Quit();
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
245 return 1;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
246 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
247 break;
4918
f5f70fed2c4c Added a Visual Studio project for testgesture
Sam Lantinga <slouken@libsdl.org>
parents: 4689
diff changeset
248 case SDL_FINGERMOTION:
4689
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
249 #if VERBOSE
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
250 printf("Finger: %i,x: %i, y: %i\n",event.tfinger.fingerId,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
251 event.tfinger.x,event.tfinger.y);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
252 #endif
4918
f5f70fed2c4c Added a Visual Studio project for testgesture
Sam Lantinga <slouken@libsdl.org>
parents: 4689
diff changeset
253 {
f5f70fed2c4c Added a Visual Studio project for testgesture
Sam Lantinga <slouken@libsdl.org>
parents: 4689
diff changeset
254 SDL_Touch* inTouch = SDL_GetTouch(event.tfinger.touchId);
f5f70fed2c4c Added a Visual Studio project for testgesture
Sam Lantinga <slouken@libsdl.org>
parents: 4689
diff changeset
255 SDL_Finger* inFinger = SDL_GetFinger(inTouch,event.tfinger.fingerId);
f5f70fed2c4c Added a Visual Studio project for testgesture
Sam Lantinga <slouken@libsdl.org>
parents: 4689
diff changeset
256 }
4689
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
257 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
258 case SDL_FINGERDOWN:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
259 #if VERBOSE
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
260 printf("Finger: %"PRIs64" down - x: %i, y: %i\n",
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
261 event.tfinger.fingerId,event.tfinger.x,event.tfinger.y);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
262 #endif
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
263 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
264 case SDL_FINGERUP:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
265 #if VERBOSE
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
266 printf("Finger: %"PRIs64" up - x: %i, y: %i\n",
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
267 event.tfinger.fingerId,event.tfinger.x,event.tfinger.y);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
268 #endif
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
269 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
270 case SDL_MULTIGESTURE:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
271 #if VERBOSE
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
272 printf("Multi Gesture: x = %f, y = %f, dAng = %f, dR = %f\n",
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
273 event.mgesture.x,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
274 event.mgesture.y,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
275 event.mgesture.dTheta,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
276 event.mgesture.dDist);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
277 printf("MG: numDownTouch = %i\n",event.mgesture.numFingers);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
278 #endif
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
279 knob.p.x = event.mgesture.x;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
280 knob.p.y = event.mgesture.y;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
281 knob.ang += event.mgesture.dTheta;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
282 knob.r += event.mgesture.dDist;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
283 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
284 case SDL_DOLLARGESTURE:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
285 printf("Gesture %"PRIs64" performed, error: %f\n",
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
286 event.dgesture.gestureId,
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
287 event.dgesture.error);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
288 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
289 case SDL_DOLLARRECORD:
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
290 printf("Recorded gesture: %"PRIs64"\n",event.dgesture.gestureId);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
291 break;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
292 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
293 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
294 DrawScreen(screen);
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
295 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
296 SDL_Quit();
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
297 return 0;
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
298 }
f9ab8df6d45a Added README.touch and README.gesture. Moved touchtest/gestureSDLTest to test/testgesture
Jim Grandpre <jim.tla@gmail.com>
parents:
diff changeset
299