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