1 #ifdef __STRICT_ANSI__
2 #define _BSD_SOURCE
3 #endif
4 #include <rfb/rfb.h>
5 #include <math.h>
6
initBackground(rfbScreenInfoPtr server)7 static void initBackground(rfbScreenInfoPtr server)
8 {
9 unsigned int i,j;
10
11 for(i=0;i<server->width;i++)
12 for(j=0;j<server->height;j++) {
13 server->frameBuffer[(j*server->width+i)*4+0]=i&0xff;
14 server->frameBuffer[(j*server->width+i)*4+1]=j&0xff;
15 server->frameBuffer[(j*server->width+i)*4+2]=(i*j)&0xff;
16 }
17 }
18
main(int argc,char ** argv)19 int main(int argc,char** argv)
20 {
21 int width=400,height=300,w=20,x,y;
22 double r,phi=0;
23
24 rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,width,height,8,3,4);
25 if(!server)
26 return 0;
27 server->frameBuffer=(char*)malloc(width*height*4);
28 initBackground(server);
29 server->deferUpdateTime=0;
30 rfbInitServer(server);
31
32 r=0;
33 while(1) {
34 if(r<=0) {
35 initBackground(server);
36 rfbMarkRectAsModified(server,0,0,width,height);
37 r=0.43;
38 phi=0;
39 } else {
40 r-=0.0001;
41 phi+=0.02;
42 if(phi>2*M_PI)
43 phi-=2*M_PI;
44 }
45 x=width*(0.5+cos(phi)*r);
46 y=height*(0.5+sin(phi)*r);
47 if(x>=0 && y>=0 && x+w<=width && y+w<=height) {
48 unsigned int dx=width*0.5*(1-cos(phi)*r)-x,
49 dy=height*0.5*(1-sin(phi)*r)-y;
50 rfbDoCopyRect(server,x,y,x+w,y+w,-dx,-dy);
51 }
52 rfbProcessEvents(server,50000);
53 }
54 return(0);
55 }
56