1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <rfb/rfb.h> 4 #include <rfb/keysym.h> 5 #include <rfb/default8x16.h> 6 7 static int maxx=400, maxy=400, bpp=4; 8 /* odd maxx doesn't work (vncviewer bug) */ 9 10 /* Here we create a structure so that every client has it's own pointer */ 11 12 /* turns the framebuffer black */ 13 void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2); 14 /* displays a red bar, a green bar, and a blue bar */ 15 void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2); 16 void draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2); 17 void draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2); 18 void linecount (char* frame_buffer); 19 /* handles mouse events */ 20 void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl); 21 /* handles keyboard events */ 22 void on_key_press (rfbBool down,rfbKeySym key,rfbClientPtr cl); 23 24 int main (int argc, char **argv) 25 { 26 rfbScreenInfoPtr server; 27 28 if(!rfbProcessSizeArguments(&maxx,&maxy,&bpp,&argc,argv)) 29 return 1; 30 31 server = rfbGetScreen (&argc, argv, maxx, maxy, 8, 3, bpp); 32 if(!server) 33 return 0; 34 server->desktopName = "Zippy das wundersquirrel\'s VNC server"; 35 server->frameBuffer = (char*)malloc(maxx*maxy*bpp); 36 server->alwaysShared = TRUE; 37 server->kbdAddEvent = on_key_press; 38 server->ptrAddEvent = on_mouse_event; 39 40 rfbInitServer (server); 41 42 blank_framebuffer(server->frameBuffer, 0, 0, maxx, maxy); 43 rfbRunEventLoop (server, -1, FALSE); 44 free(server->frameBuffer); 45 rfbScreenCleanup (server); 46 return 0; 47 } 48 49 void blank_framebuffer(char* frame_buffer, int x1, int y1, int x2, int y2) 50 { 51 int i; 52 for (i=0; i < maxx * maxy * bpp; i++) frame_buffer[i]=(char) 0; 53 } 54 55 void draw_primary_colors (char* frame_buffer, int x1, int y1, int x2, int y2) 56 { 57 int i, j, current_pixel; 58 for (i=y1; i < y2; i++){ 59 for (j=x1; j < x2; j++) { 60 current_pixel = (i*x2 + j) * bpp; 61 if (i < y2 ) { 62 frame_buffer[current_pixel+0] = (char) 128; 63 frame_buffer[current_pixel+1] = (char) 0; 64 frame_buffer[current_pixel+2] = (char) 0; 65 } 66 if (i < y2/3*2) { 67 frame_buffer[current_pixel+0] = (char) 0; 68 frame_buffer[current_pixel+1] = (char) 128; 69 frame_buffer[current_pixel+2] = (char) 0; 70 } 71 if (i < y2/3) { 72 frame_buffer[current_pixel+0] = (char) 0; 73 frame_buffer[current_pixel+1] = (char) 0; 74 frame_buffer[current_pixel+2] = (char) 128; 75 } 76 } 77 } 78 } 79 80 /* Dscho's versions (slower, but works for bpp != 3 or 4) */ 81 void draw_primary_colours_generic(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) 82 { 83 rfbPixelFormat f=s->serverFormat; 84 int i,j; 85 for(j=y1;j<y2;j++) 86 for(i=x1;i<x2;i++) 87 if(j<y1*2/3+y2/3) 88 rfbDrawPixel(s,i,j,f.redMax<<f.redShift); 89 else if(j<y1/3+y2*2/3) 90 rfbDrawPixel(s,i,j,f.greenMax<<f.greenShift); 91 else 92 rfbDrawPixel(s,i,j,f.blueMax<<f.blueShift); 93 } 94 95 void draw_primary_colours_generic_fast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) 96 { 97 rfbPixelFormat f=s->serverFormat; 98 int i,j,y3=(y1*2+y2)/3,y4=(y1+y2*2)/3; 99 /* draw first pixel */ 100 rfbDrawPixel(s,x1,y1,f.redMax<<f.redShift); 101 rfbDrawPixel(s,x1,y3,f.greenMax<<f.greenShift); 102 rfbDrawPixel(s,x1,y4,f.blueMax<<f.blueShift); 103 /* then copy stripes */ 104 for(j=0;j<y2-y4;j++) 105 for(i=x1;i<x2;i++) { 106 #define ADDR(x,y) s->frameBuffer+(x)*bpp+(y)*s->paddedWidthInBytes 107 memcpy(ADDR(i,j+y1),ADDR(x1,y1),bpp); 108 memcpy(ADDR(i,j+y3),ADDR(x1,y3),bpp); 109 memcpy(ADDR(i,j+y4),ADDR(x1,y4),bpp); 110 } 111 } 112 113 static void draw_primary_colours_generic_ultrafast(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2) 114 { 115 rfbPixelFormat f=s->serverFormat; 116 int y3=(y1*2+y2)/3,y4=(y1+y2*2)/3; 117 /* fill rectangles */ 118 rfbFillRect(s,x1,y1,x2,y3,f.redMax<<f.redShift); 119 rfbFillRect(s,x1,y3,x2,y4,f.greenMax<<f.greenShift); 120 rfbFillRect(s,x1,y4,x2,y2,f.blueMax<<f.blueShift); 121 } 122 123 void linecount (char* frame_buffer) 124 { 125 int i,j,k, current_pixel; 126 for (i=maxy-4; i>maxy-20; i-=4) 127 for (j=0; j<4; j++) for (k=0; k < maxx; k++) { 128 current_pixel = (i*j*maxx + k) * bpp; 129 if (i%2 == 0) { 130 frame_buffer[current_pixel+0] = (char) 0; 131 frame_buffer[current_pixel+1] = (char) 0; 132 frame_buffer[current_pixel+2] = (char) 128; 133 } 134 135 if (i%2 == 1) { 136 frame_buffer[current_pixel+0] = (char) 128; 137 frame_buffer[current_pixel+1] = (char) 0; 138 frame_buffer[current_pixel+2] = (char) 0; 139 } 140 } 141 142 } 143 144 145 void on_key_press (rfbBool down,rfbKeySym key,rfbClientPtr cl) 146 { 147 if (down) /* or else the action occurs on both the press and depress */ 148 switch (key) { 149 150 case XK_b: 151 case XK_B: 152 blank_framebuffer(cl->screen->frameBuffer, 0, 0, maxx, maxy); 153 rfbDrawString(cl->screen,&default8x16Font,20,maxy-20,"Hello, World!",0xffffff); 154 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); 155 rfbLog("Framebuffer blanked\n"); 156 break; 157 case XK_p: 158 case XK_P: 159 /* draw_primary_colors (cl->screen->frameBuffer, 0, 0, maxx, maxy); */ 160 draw_primary_colours_generic_ultrafast (cl->screen, 0, 0, maxx, maxy); 161 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); 162 rfbLog("Primary colors displayed\n"); 163 break; 164 case XK_Q: 165 case XK_q: 166 rfbLog("Exiting now\n"); 167 exit(0); 168 case XK_C: 169 case XK_c: 170 rfbDrawString(cl->screen,&default8x16Font,20,100,"Hello, World!",0xffffff); 171 rfbMarkRectAsModified(cl->screen,0, 0,maxx,maxy); 172 break; 173 default: 174 rfbLog("The %c key was pressed\n", (char) key); 175 } 176 } 177 178 179 void on_mouse_event (int buttonMask,int x,int y,rfbClientPtr cl) 180 { 181 printf("buttonMask: %i\n" 182 "x: %i\n" "y: %i\n", buttonMask, x, y); 183 } 184
