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#include <rfb/rfb.h>
#define _USE_MATH_DEFINES
#include <math.h>
static void initBackground(rfbScreenInfoPtr server)
{
unsigned int i,j;
for(i=0;i<server->width;i++)
for(j=0;j<server->height;j++) {
server->frameBuffer[(j*server->width+i)*4+0]=i&0xff;
server->frameBuffer[(j*server->width+i)*4+1]=j&0xff;
server->frameBuffer[(j*server->width+i)*4+2]=(i*j)&0xff;
}
}
int main(int argc,char** argv)
{
int width=400,height=300,w=20,x,y;
double r,phi=0;
rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,width,height,8,3,4);
if(!server)
return 0;
server->frameBuffer=(char*)malloc(width*height*4);
initBackground(server);
server->deferUpdateTime=0;
rfbInitServer(server);
r=0;
while(1) {
if(r<=0) {
initBackground(server);
rfbMarkRectAsModified(server,0,0,width,height);
r=0.43;
phi=0;
} else {
r-=0.0001;
phi+=0.02;
if(phi>2*M_PI)
phi-=2*M_PI;
}
x=width*(0.5+cos(phi)*r);
y=height*(0.5+sin(phi)*r);
if(x>=0 && y>=0 && x+w<=width && y+w<=height) {
unsigned int dx=width*0.5*(1-cos(phi)*r)-x,
dy=height*0.5*(1-sin(phi)*r)-y;
rfbDoCopyRect(server,x,y,x+w,y+w,-dx,-dy);
}
rfbProcessEvents(server,50000);
}
return(0);
}
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