--- /dev/null
+/* t3d -- Flying Balls Clock Demo
+ by Bernd Paysan , paysan@informatik.tu-muenchen.de
+
+ Copy, modify, and distribute T3D either under GPL version 2 or newer,
+ or under the standard MIT/X license notice.
+
+ partly based on flying balls demo by Georg Acher,
+ acher@informatik.tu-muenchen.de
+ (developed on HP9000/720 (55 MIPS,20 MFLOPS) )
+ NO warranty at all ! Complaints to /dev/null !
+
+ 4-Jan-99 jwz@jwz.org -- adapted to xscreensaver framework, to take advantage
+ of the command-line options provided by screenhack.c.
+*/
+
+#define FASTDRAW
+#define FASTCOPY
+#undef USE_POLYGON
+
+#include <stdio.h>
+#include <math.h>
+#include <time.h> /* for localtime() and gettimeofday() */
+
+#include "screenhack.h"
+
+
+static int maxk=34;
+
+#define WIDTH 200
+#define HEIGHT 200
+#define norm 20.0
+
+int timewait=40000;
+
+#define ROOT 0x1
+#define PI M_PI
+#define TWOPI 2*M_PI
+
+#define MIN(i,j) ((i)<(j)?(i):(j))
+
+#define kmax ((minutes?60:24))
+/* Anzahl der Kugeln */
+#define sines 52
+/* Werte in der Sinus-Tabelle */
+/*-----------------------------------------------------------------*/
+#define setink(inkcolor) \
+ XSetForeground (dpy,gc,inkcolor)
+
+#define drawline(xx1,yy1,xx2,yy2) \
+ XDrawLine(dpy,win,gc,xx1,yy1,xx2,yy2)
+
+#define drawseg(segments,nr_segments) \
+ XDrawSegments(dpy,win,gc,segments,nr_segments)
+
+
+#define polyfill(ppts,pcount) \
+ XFillPolygon(dpy,win,gc,ppts,pcount,Convex,CoordModeOrigin)
+
+
+#define frac(argument) argument-floor(argument)
+
+#undef ABS
+#define ABS(x) ((x)<0.0 ? -(x) : (x))
+
+static Colormap cmap;
+/* static XColor gray1; */
+static double r=1.0,g=1.0,b=1.0;
+static double hue=0.0,sat=0.0,val=1.0;
+
+typedef struct {
+ double x,y,z,r,d,r1;
+ int x1,y1;
+} kugeldat;
+
+/* Felder fuer 3D */
+
+static kugeldat kugeln[100];
+
+static double a[3],/*m[3],*/am[3],x[3],y[3],v[3];
+static double zoom,speed,zaehler,vspeed/*,AE*/;
+static double vturn/*,aturn*/;
+/* static XPoint track[sines]; */
+static double sinus[sines];
+static double cosinus[sines];
+
+static int startx,starty;
+static double /*magx,magy,*/mag=10;
+/* static double lastx,lasty,lastz; */
+/* static int lastcx,lastcy,lastcz; */
+/* static int move=1; */
+static int minutes=0;
+static int cycl=0;
+static double hsvcycl=0.0;
+static double movef =0.5, wobber=2.0, cycle=6.0;
+
+/* time */
+
+/* static double sec; */
+
+/* Windows */
+static XWindowAttributes xgwa;
+static GC gc;
+static GC orgc;
+static GC andgc;
+static Window win;
+/* static Font font; */
+static Display *dpy;
+static int screen, scrnWidth = WIDTH, scrnHeight = HEIGHT;
+static Pixmap buffer;
+#define maxfast 100
+static int fastch=50;
+#ifdef FASTDRAW
+# ifdef FASTCOPY
+# define sum1ton(a) (((a)*(a)+1)/2)
+# define fastcw sum1ton(fastch)
+ static Pixmap fastcircles;
+ static Pixmap fastmask;
+# else
+ static XImage* fastcircles[maxfast];
+ static XImage* fastmask[maxfast];
+# endif
+static int fastdraw=0;
+#endif
+
+static int scrnW2,scrnH2;
+/* static unsigned short flags = 0; */
+/* static char *text; */
+static XColor colors[64];
+static struct tm *zeit;
+
+static int planes;
+/* compute time */
+
+static double
+gettime (void)
+{
+ struct timeval time1;
+ struct tm *zeit;
+ time_t lt;
+
+#ifdef GETTIMEOFDAY_TWO_ARGS
+ struct timezone zone1;
+ gettimeofday(&time1,&zone1);
+#else
+ gettimeofday(&time1);
+#endif
+ lt = time1.tv_sec; /* avoid type cast lossage */
+ zeit=localtime(<);
+
+ return (zeit->tm_sec+60*(zeit->tm_min+60*(zeit->tm_hour))
+ + time1.tv_usec*1.0E-6);
+}
+
+/* --------------------COLORMAP---------------------*/
+
+static void
+hsv2rgb (double h, double s, double v, double *r, double *g, double *b)
+{
+ h/=360.0; h=6*(h-floor(h));
+
+ if(s==0.0)
+ {
+ *r=*g=*b=v;
+ }
+ else
+ { int i=(int)h;
+ double t,u,w;
+
+ h=h-floor(h);
+
+ u=v*(s*(1.0-h));
+ w=v*(1.0-s);
+ t=v*(s*h+1.0-s);
+
+ switch(i)
+ {
+ case 0: *r=v; *g=t; *b=w; break;
+ case 1: *r=u; *g=v; *b=w; break;
+ case 2: *r=w; *g=v; *b=t; break;
+ case 3: *r=w; *g=u; *b=v; break;
+ case 4: *r=t; *g=w; *b=v; break;
+ case 5: *r=v; *g=w; *b=u; break;
+ }
+ }
+#ifdef PRTDBX
+ printf("HSV: %f %f %f to\nRGB: %f %f %f\n",h,s,v,*r,*g,*b);
+#endif
+}
+
+static void
+changeColor (double r, double g, double b)
+{
+ int n,n1;
+
+ n1=0;
+ for(n=30;n<64;n+=3)
+ {
+ colors[n1].red =1023+ n*(int)(1024.*r);
+ colors[n1].blue =1023+ n*(int)(1024.*b);
+ colors[n1].green =1023+ n*(int)(1024.*g);
+
+ n1++;
+ }
+
+ XStoreColors (dpy, cmap, colors, 12);
+}
+
+static void
+initColor (double r, double g, double b)
+{
+ int n,n1;
+ unsigned long pixels[12];
+ unsigned long dummy;
+
+ cmap = xgwa.colormap;
+
+ if(hsvcycl!=0.0 && XAllocColorCells(dpy, cmap, 0, &dummy, 0, pixels, 12))
+ {
+ for(n1=0;n1<12;n1++)
+ {
+ colors[n1].pixel=pixels[n1];
+ colors[n1].flags=DoRed | DoGreen | DoBlue;
+ }
+
+ changeColor(r,g,b);
+ }
+ else
+ {
+ n1=0;
+ for(n=30;n<64;n+=3)
+ {
+ colors[n1].red =1023+ n*(int)(1024.*r);
+ colors[n1].blue =1023+ n*(int)(1024.*b);
+ colors[n1].green =1023+ n*(int)(1024.*g);
+
+ if (!(XAllocColor (dpy, cmap, &colors[n1]))) {
+ (void) fprintf (stderr, "Error: Cannot allocate colors\n");
+ exit (1);
+ }
+
+ n1++;
+ }
+ }
+}
+
+/* ----------------WINDOW-------------------*/
+
+static void
+initialize (void)
+{
+ XGCValues *xgc;
+ XGCValues *xorgc;
+ XGCValues *xandgc;
+
+ XGetWindowAttributes (dpy, win, &xgwa);
+ scrnWidth = xgwa.width;
+ scrnHeight = xgwa.height;
+
+ {
+ float f = get_float_resource ("cycle", "Float");
+ if (f <= 0 || f > 60) f = 6.0;
+ cycle = 60.0 / f;
+ }
+ movef = get_float_resource ("move", "Float");
+ wobber = get_float_resource ("wobble", "Float");
+
+ {
+ double magfac = get_float_resource ("mag", "Float");
+ mag *= magfac;
+ fastch=(int)(fastch*magfac);
+ }
+
+ if (get_boolean_resource ("minutes", "Boolean")) {
+ minutes=1; maxk+=60-24;
+ }
+
+ timewait = get_integer_resource ("delay", "Integer");
+ fastch = get_integer_resource ("fast", "Integer");
+ cycl = get_boolean_resource ("colcycle", "Integer");
+ hsvcycl = get_float_resource ("hsvcycle", "Integer");
+
+ {
+ char *s = get_string_resource ("rgb", "RGB");
+ char dummy;
+ if (s && *s)
+ {
+ double rr, gg, bb;
+ if (3 == sscanf (s, "%lf %lf %lf %c", &rr, &gg, &bb, &dummy))
+ r = rr, g = gg, b = bb;
+ }
+ if (s) free (s);
+
+ s = get_string_resource ("hsv", "HSV");
+ if (s && *s)
+ {
+ double hh, ss, vv;
+ if (3 == sscanf (s, "%lf %lf %lf %c", &hh, &ss, &vv, &dummy)) {
+ hue = hh, sat = ss, val = vv;
+ hsv2rgb(hue,sat,val,&r,&g,&b);
+ }
+ }
+ if (s) free (s);
+ }
+
+ if (fastch>maxfast)
+ fastch=maxfast;
+
+ xgc=( XGCValues *) malloc(sizeof(XGCValues) );
+ xorgc=( XGCValues *) malloc(sizeof(XGCValues) );
+ xandgc=( XGCValues *) malloc(sizeof(XGCValues) );
+
+ screen = screen_number (xgwa.screen);
+
+ planes=xgwa.depth;
+
+ gc = XCreateGC (dpy, win, 0, xgc);
+ xorgc->function =GXor;
+ orgc = XCreateGC (dpy, win, GCFunction, xorgc);
+ xandgc->function =GXandInverted;
+ andgc = XCreateGC (dpy, win, GCFunction, xandgc);
+
+ buffer = XCreatePixmap (dpy, win, scrnWidth, scrnHeight,
+ xgwa.depth);
+
+#ifdef DEBUG
+ printf("Time 3D drawing ");
+#ifdef FASTDRAW
+# ifdef FASTCOPY
+ puts("fast by Pixmap copy");
+# else
+ puts("fast by XImage copy");
+# endif
+#else
+ puts("slow");
+#endif
+#endif /* DEBUG */
+
+#ifdef FASTCOPY
+ fastcircles = XCreatePixmap (dpy, win, fastcw, fastch+1, xgwa.depth);
+ fastmask = XCreatePixmap (dpy, win, fastcw, fastch+1, xgwa.depth);
+#endif
+
+ setink(BlackPixel (dpy, screen));
+ XFillRectangle (dpy, buffer , gc, 0, 0, scrnWidth, scrnHeight);
+
+#ifdef FASTCOPY
+
+ setink(0);
+ XFillRectangle (dpy, fastcircles, gc, 0, 0, fastcw, fastch+1);
+ XFillRectangle (dpy, fastmask , gc, 0, 0, fastcw, fastch+1);
+
+#endif
+
+#ifdef PRTDBX
+ printf("move\t%.2f\nwobber\t%.2f\nmag\t%.2f\ncycle\t%.4f\n",
+ movef,wobber,mag/10,cycle);
+ printf("fast\t%i\nmarks\t%i\nwait\t%i\n",fastch,maxk,timewait);
+#endif
+
+}
+
+static void fill_kugel(int i, Pixmap buf, int setcol);
+
+
+/*------------------------------------------------------------------*/
+static void
+init_kugel(void)
+{
+
+#ifdef FASTDRAW
+ int i;
+
+ for(i=0; i<fastch; i++)
+ {
+# ifdef FASTCOPY
+ kugeln[i].r1=-((double) i)/2 -1;
+ kugeln[i].x1=sum1ton(i);
+ kugeln[i].y1=((double) i)/2 +1;
+
+ fill_kugel(i,fastcircles,1);
+ setink((1<<MIN(24,xgwa.depth))-1);
+ fill_kugel(i,fastmask,0);
+# else
+ kugeln[i].r1=-((double) i)/2 -1;
+ kugeln[i].x1=kugeln[i].y1=((double) i)/2 +1;
+
+ fill_kugel(i,buffer,1);
+ fastcircles[i]=XGetImage(dpy,buffer,0,0,i+2,i+2,(1<<planes)-1,ZPixmap);
+
+ setink((1<<MIN(24,xgwa.depth))-1);
+ fill_kugel(i,buffer,0);
+ fastmask[i]=XGetImage(dpy,buffer,0,0,i+2,i+2,(1<<planes)-1,ZPixmap);
+
+ setink(0);
+ XFillRectangle (dpy, buffer , gc, 0, 0, scrnWidth, scrnHeight);
+# endif
+ }
+ fastdraw=1;
+#endif
+}
+
+/* Zeiger zeichnen */
+
+static void
+zeiger(double dist,double rad, double z, double sec, int *q)
+{
+ int i,n;
+ double gratio=sqrt(2.0/(1.0+sqrt(5.0)));
+
+ n = *q;
+
+ for(i=0;i<3;i++)
+ {
+ kugeln[n].x=dist*cos(sec);
+ kugeln[n].y=-dist*sin(sec);
+ kugeln[n].z=z;
+ kugeln[n].r=rad;
+ n++;
+
+ dist += rad;
+ rad = rad*gratio;
+ }
+ *q = n;
+}
+
+/*-----------------------------------------------------------------*
+ * Uhr zeichnen *
+ *-----------------------------------------------------------------*/
+
+static void
+manipulate(double k)
+{
+ double i,l,/*xs,*/ys,zs,mod;
+ double /*persec,*/sec,min,hour;
+ int n;
+
+ sec=TWOPI*modf(k/60,&mod);
+ min=TWOPI*modf(k/3600,&mod);
+ hour=TWOPI*modf(k/43200,&mod);
+
+ l=TWOPI*modf(k/300,&mod);
+ i=0.0;
+ for (n=0;n<kmax;n++)
+ {
+
+ kugeln[n].x=4.0*sin(i);
+ kugeln[n].y=4.0*cos(i);
+ kugeln[n].z=wobber* /* (sin(floor(2+2*l/(PI))*i)*sin(2*l)); */
+ cos((i-sec)*floor(2+5*l/(PI)))*sin(5*l);
+ if(minutes)
+ {
+ kugeln[n].r=/* (1.0+0.3*cos(floor(2+2*l/(PI))*i)*sin(2*l))* */
+ ((n % 5!=0) ? 0.3 : 0.6)*
+ ((n % 15 ==0) ? 1.25 : .75);
+ }
+ else
+ {
+ kugeln[n].r=/* (1.0+0.3*cos(floor(2+2*l/(PI))*i)*sin(2*l))* */
+ ((n & 1) ? 0.5 : 1.0)*
+ ((n % 6==0) ? 1.25 : .75);
+ }
+ i+=TWOPI/kmax;
+ }
+
+ kugeln[n].x=0.0;
+ kugeln[n].y=0.0;
+ kugeln[n].z=0.0;
+ kugeln[n].r=2.0+cos(TWOPI*modf(k,&mod))/2;
+ n++;
+
+ zeiger(2.0,0.75,-2.0,sec,&n);
+ zeiger(1.0,1.0,-1.5,min,&n);
+ zeiger(0.0,1.5,-1.0,hour,&n);
+
+ for(n=0;n<maxk;n++)
+ {
+ ys=kugeln[n].y*cos(movef*sin(cycle*sec))+
+ kugeln[n].z*sin(movef*sin(cycle*sec));
+ zs=-kugeln[n].y*sin(movef*sin(cycle*sec))+
+ kugeln[n].z*cos(movef*sin(cycle*sec));
+ kugeln[n].y=ys;
+ kugeln[n].z=zs;
+ }
+}
+/*------------------------------------------------------------------*/
+static void
+t3d_sort(int l, int r)
+{
+ int i,j;
+ kugeldat ex;
+ double x;
+
+ i=l;j=r;
+ x=kugeln[(l+r)/2].d;
+ while(1)
+ {
+ while(kugeln[i].d>x) i++;
+ while(x>kugeln[j].d) j--;
+ if (i<=j)
+ {
+ ex=kugeln[i];kugeln[i]=kugeln[j];kugeln[j]=ex;
+ i++;j--;
+ }
+ if (i>j) break;
+ }
+ if (l<j) t3d_sort(l,j);
+ if (i<r) t3d_sort (i,r);
+}
+
+/*------------------------------------------------------------------*/
+static void
+fill_kugel(int i, Pixmap buf, int setcol)
+{
+ double ra;
+ int m,col,inc=1,inr=3,d;
+ d=(int)((ABS(kugeln[i].r1)*2));
+ if (d==0) d=1;
+
+#ifdef FASTDRAW
+ if(fastdraw && d<fastch)
+ {
+# ifdef FASTCOPY
+ XCopyArea(dpy, fastmask, buf, andgc, sum1ton(d)-(d+1)/2, 1,d,d,
+ (int)(kugeln[i].x1)-d/2, (int)(kugeln[i].y1)-d/2);
+ XCopyArea(dpy, fastcircles, buf, orgc, sum1ton(d)-(d+1)/2, 1,d,d,
+ (int)(kugeln[i].x1)-d/2, (int)(kugeln[i].y1)-d/2);
+# else
+ XPutImage(dpy, buf, andgc, fastmask[d-1], 0, 0,
+ (int)(kugeln[i].x1)-d/2, (int)(kugeln[i].y1)-d/2, d, d);
+ XPutImage(dpy, buf, orgc, fastcircles[d-1], 0, 0,
+ (int)(kugeln[i].x1)-d/2, (int)(kugeln[i].y1)-d/2, d, d);
+# endif
+ }
+ else
+#endif
+ {
+ if(ABS(kugeln[i].r1)<6.0) inr=9;
+
+ for (m=0;m<=28;m+=inr)
+ {
+ ra=kugeln[i].r1*sqrt(1-m*m/(28.0*28.0));
+#ifdef PRTDBX
+ printf("Radius: %f\n",ra);
+#endif
+ if(-ra< 3.0) inc=14;
+ else if(-ra< 6.0) inc=8;
+ else if(-ra<20.0) inc=4;
+ else if(-ra<40.0) inc=2;
+ if(setcol)
+ {
+ if (m==27) col=33;
+ else
+ col=(int)(m);
+ if (col>33) col=33; col/=3;
+ setink(colors[col].pixel);
+ }
+
+#ifdef USE_POLYGON
+ {
+ int n, nr;
+ for (n=0,nr=0;n<=sines-1;n+=inc,nr++)
+ {
+ track[nr].x=kugeln[i].x1+(int)(ra*sinus[n])+(kugeln[i].r1-ra)/2;
+ track[nr].y=kugeln[i].y1+(int)(ra*cosinus[n])+(kugeln[i].r1-ra)/2;
+ }
+ XFillPolygon(dpy,buf,gc,track,nr,Convex,CoordModeOrigin);
+ }
+#else /* Use XFillArc */
+ XFillArc(dpy, buf, gc,
+ (int)(kugeln[i].x1+(kugeln[i].r1+ra)/2),
+ (int)(kugeln[i].y1+(kugeln[i].r1+ra)/2),
+ (int)-(2*ra+1), (int)-(2*ra+1), 0, 360*64);
+#endif
+ }
+ }
+}
+
+/*------------------------------------------------------------------*/
+
+static void
+init_3d(void)
+{
+ double i;
+ int n=0;
+
+ a[0]=0.0;
+ a[1]=0.0;
+ a[2]=-10.0;
+
+ x[0]=10.0;
+ x[1]=0.0;
+ x[2]=0.0;
+
+ y[0]=0.0;
+ y[1]=10.0;
+ y[2]=0.0;
+
+
+ zoom=-10.0;
+ speed=.0;
+
+ for (i=0.0;n<sines;i+=TWOPI/sines,n++)
+ {
+ sinus[n]=sin(i);
+ cosinus[n]=cos(i);
+ }
+}
+/*------------------------------------------------------------------*/
+
+
+static void
+vektorprodukt(double feld1[], double feld2[], double feld3[])
+{
+ feld3[0]=feld1[1]*feld2[2]-feld1[2]*feld2[1];
+ feld3[1]=feld1[2]*feld2[0]-feld1[0]*feld2[2];
+ feld3[2]=feld1[0]*feld2[1]-feld1[1]*feld2[0];
+}
+/*------------------------------------------------------------------*/
+static void
+turn(double feld1[], double feld2[], double winkel)
+{
+ double temp[3];
+ double s,ca,sa,sx1,sx2,sx3;
+
+ vektorprodukt(feld1,feld2,temp);
+
+ s=feld1[0]*feld2[0]+feld1[1]*feld2[1]+feld1[2]*feld2[2];
+
+ sx1=s*feld2[0];
+ sx2=s*feld2[1];
+ sx3=s*feld2[2];
+ sa=sin(winkel);ca=cos(winkel);
+ feld1[0]=ca*(feld1[0]-sx1)+sa*temp[0]+sx1;
+ feld1[1]=ca*(feld1[1]-sx2)+sa*temp[1]+sx2;
+ feld1[2]=ca*(feld1[2]-sx3)+sa*temp[2]+sx3;
+}
+/*------------------------------------------------------------------*/
+
+/* 1: Blickrichtung v;3:Ebenenmittelpunkt m
+ double feld1[],feld3[]; */
+static void
+viewpoint(void)
+{
+ am[0]=-zoom*v[0];
+ am[1]=-zoom*v[1];
+ am[2]=-zoom*v[2];
+
+ zaehler=norm*norm*zoom;
+}
+/*------------------------------------------------------------------*/
+static void
+projektion(void)
+{
+ double c1[3],c2[3],k[3],x1,y1;
+ double cno,cnorm/*,magnit*/;
+ int i;
+
+ for (i=0;i<maxk;i++)
+ {
+ c1[0]=kugeln[i].x-a[0];
+ c1[1]=kugeln[i].y-a[1];
+ c1[2]=kugeln[i].z-a[2];
+ cnorm=sqrt(c1[0]*c1[0]+c1[1]*c1[1]+c1[2]*c1[2]);
+
+ c2[0]=c1[0];
+ c2[1]=c1[1];
+ c2[2]=c1[2];
+
+ cno=c2[0]*v[0]+c2[1]*v[1]+c2[2]*v[2];
+ kugeln[i].d=cnorm;
+ if (cno<0) kugeln[i].d=-20.0;
+
+
+ kugeln[i].r1=(mag*zoom*kugeln[i].r/cnorm);
+
+ c2[0]=v[0]/cno;
+ c2[1]=v[1]/cno;
+ c2[2]=v[2]/cno;
+
+ vektorprodukt(c2,c1,k);
+
+
+ x1=(startx+(x[0]*k[0]+x[1]*k[1]+x[2]*k[2])*mag);
+ y1=(starty-(y[0]*k[0]+y[1]*k[1]+y[2]*k[2])*mag);
+ if( (x1>-2000.0)
+ && (x1<scrnWidth+2000.0)
+ && (y1>-2000.0)
+ && (y1<scrnHeight+2000.0))
+ {
+ kugeln[i].x1=(int)x1;
+ kugeln[i].y1=(int)y1;
+ }
+ else
+ {
+ kugeln[i].x1=0;
+ kugeln[i].y1=0;
+ kugeln[i].d=-20.0;
+ }
+ }
+}
+
+/*---------- event-handler ----------------*/
+static void
+event_handler(void)
+{
+ while (XEventsQueued (dpy, QueuedAfterReading))
+ {
+ XEvent event;
+
+ XNextEvent (dpy, &event);
+ switch (event.type)
+ {
+ case ConfigureNotify:
+ if (event.xconfigure.width != scrnWidth ||
+ event.xconfigure.height != scrnHeight)
+ {
+ XFreePixmap (dpy, buffer);
+ scrnWidth = event.xconfigure.width;
+ scrnHeight = event.xconfigure.height;
+ buffer = XCreatePixmap (dpy, win, scrnWidth, scrnHeight,
+ xgwa.depth);
+
+ startx=scrnWidth/2;
+ starty=scrnHeight/2;
+ scrnH2=startx;
+ scrnW2=starty;
+ };
+ break;
+
+ case KeyPress:
+ {
+ KeySym kpr=XKeycodeToKeysym(dpy,event.xkey.keycode,0);
+
+ switch (kpr)
+ {
+ case 's': case 'S':
+ vspeed = 0.5;
+ break;
+ case 'a': case 'A':
+ vspeed = -0.3;
+ break;
+
+ case '0':
+ speed = 0;
+ vspeed = 0;
+ break;
+
+ case 'z': case 'Z':
+ mag *= 1.02;
+ break;
+
+ case 'x': case 'X':
+ mag /= 1.02;
+ break;
+
+ default:
+ screenhack_handle_event (dpy, &event);
+ break;
+ }
+ }
+
+ case ButtonPress: case ButtonRelease:
+ break;
+
+ default:
+ screenhack_handle_event (dpy, &event);
+ break;
+ }
+ }
+ /*nap(40);-Ersatz*/
+ {
+ struct timeval timeout;
+ timeout.tv_sec=timewait/1000000;
+ timeout.tv_usec=timewait%1000000;
+ (void)select(0,0,0,0,&timeout);
+ }
+}
+
+
+/*-------------------------------------------------*/
+
+char *progclass = "T3D";
+
+char *defaults [] = {
+ ".background: black",
+ ".foreground: white",
+ "*move: 0.5",
+ "*wobble: 2.0",
+ "*cycle: 10.0",
+ "*mag: 1",
+ "*minutes: False",
+ "*delay: 40000",
+ "*fast: 50",
+ "*ccycle: False",
+ "*hsvcycle: 0.0",
+ 0
+};
+
+XrmOptionDescRec options [] = {
+ { "-move", ".move", XrmoptionSepArg, 0 },
+ { "-wobble", ".wobble", XrmoptionSepArg, 0 },
+ { "-cycle", ".cycle", XrmoptionSepArg, 0 },
+ { "-mag", ".mag", XrmoptionSepArg, 0 },
+ { "-minutes", ".minutes", XrmoptionSepArg, 0 },
+ { "-delay", ".delay", XrmoptionSepArg, 0 },
+ { "-fast", ".fast", XrmoptionSepArg, 0 },
+ { "-colcycle", ".colcycle", XrmoptionSepArg, 0 },
+ { "-hsvcycle", ".hsvcycle", XrmoptionSepArg, 0 },
+ { "-rgb", ".rgb", XrmoptionSepArg, 0 },
+ { "-hsv", ".hsv", XrmoptionSepArg, 0 },
+ { 0, 0, 0, 0 }
+};
+
+
+void
+screenhack (Display *d, Window w)
+{
+ Window junk_win,in_win;
+
+ int px,py,junk/*,wai*/;
+ unsigned int kb;
+/* int act,act1,tc;*/
+ double vnorm;
+ /* double var=0.0; */
+ int color=0/*, dir=1*/;
+
+ dpy = d;
+ win = w;
+ initialize();
+
+ initColor(r,g,b);
+ init_3d();
+ zeit=(struct tm *)malloc(sizeof(struct tm));
+ init_kugel();
+
+ startx=scrnWidth/2;
+ starty=scrnHeight/2;
+ scrnH2=startx;
+ scrnW2=starty;
+ vspeed=0;
+
+
+ vektorprodukt(x,y,v);
+ viewpoint(/*m,v*/);
+
+ setink (BlackPixel (dpy, screen));
+ XFillRectangle (dpy, win, gc, 0, 0, scrnWidth, scrnHeight);
+ XQueryPointer (dpy, win, &junk_win, &junk_win, &junk, &junk,
+ &px, &py, &kb);
+
+ for (;;)
+ { double dtime;
+
+ /*--------------- Zeichenteil --------------*/
+
+ event_handler();
+
+ vektorprodukt(x,y,v);
+
+ vnorm=sqrt(v[0]*v[0]+v[1]*v[1]+v[2]*v[2]);
+ v[0]=v[0]*norm/vnorm;
+ v[1]=v[1]*norm/vnorm;
+ v[2]=v[2]*norm/vnorm;
+ vnorm=sqrt(x[0]*x[0]+x[1]*x[1]+x[2]*x[2]);
+ x[0]=x[0]*norm/vnorm;
+ x[1]=x[1]*norm/vnorm;
+ x[2]=x[2]*norm/vnorm;
+ vnorm=sqrt(y[0]*y[0]+y[1]*y[1]+y[2]*y[2]);
+ y[0]=y[0]*norm/vnorm;
+ y[1]=y[1]*norm/vnorm;
+ y[2]=y[2]*norm/vnorm;
+
+ projektion();
+ t3d_sort (0,maxk-1);
+
+ dtime=gettime();
+
+ if(cycl)
+ {
+ color=(int)(64.0*(dtime/60-floor(dtime/60)))-32;
+
+ if(color<0)
+ color=-color;
+
+ setink(colors[color/3].pixel);
+ }
+ else
+ setink(BlackPixel (dpy, screen));
+
+ XFillRectangle(dpy,buffer,gc,0,0,scrnWidth,scrnHeight);
+
+ {
+ int i;
+
+ manipulate(dtime);
+
+ for (i=0;i<maxk;i++)
+ {
+ if (kugeln[i].d>0.0)
+ fill_kugel(i,buffer,1);
+ }
+ }
+
+ XSync(dpy,0);
+
+ /* manipulate(gettime());
+ var+=PI/500;
+ if (var>=TWOPI) var=PI/500; */
+
+ /*event_handler();*/
+
+ if(hsvcycl!=0.0)
+ {
+ dtime=hsvcycl*dtime/10.0+hue/360.0;
+ dtime=360*(dtime-floor(dtime));
+
+ hsv2rgb(dtime,sat,val,&r,&g,&b);
+ changeColor(r,g,b);
+ }
+
+ XCopyArea (dpy, buffer, win, gc, 0, 0, scrnWidth, scrnHeight, 0, 0);
+
+
+ /*-------------------------------------------------*/
+ XSync(dpy,0);
+
+ event_handler();
+
+ (void)(XQueryPointer (dpy, win, &junk_win, &in_win, &junk, &junk,
+ &px, &py, &kb));
+
+ if ((px>0)&&(px<scrnWidth)&&(py>0)&&(py<scrnHeight) )
+ {
+ if ((px !=startx)&&(kb&Button2Mask))
+ {
+ /* printf("y=(%f,%f,%f)",y[0],y[1],y[2]);*/
+ turn(y,x,((double)(px-startx))/(8000*mag));
+ /* printf("->(%f,%f,%f)\n",y[0],y[1],y[2]);*/
+ }
+ if ((py !=starty)&&(kb&Button2Mask))
+ {
+ /* printf("x=(%f,%f,%f)",x[0],x[1],x[2]);*/
+ turn(x,y,((double)(py-starty))/(-8000*mag));
+ /* printf("->(%f,%f,%f)\n",x[0],x[1],x[2]);*/
+ }
+ if ((kb&Button1Mask))
+ {
+ if (vturn==0.0) vturn=.005; else if (vturn<2) vturn+=.01;
+ turn(x,v,.002*vturn);
+ turn(y,v,.002*vturn);
+ }
+ if ((kb&Button3Mask))
+ {
+ if (vturn==0.0) vturn=.005; else if (vturn<2) vturn+=.01;
+ turn(x,v,-.002*vturn);
+ turn(y,v,-.002*vturn);
+ }
+ }
+ if (!(kb&Button1Mask)&&!(kb&Button3Mask))
+ vturn=0;
+
+ speed=speed+speed*vspeed;
+ if ((speed<0.0000001) &&(vspeed>0.000001)) speed=0.000001;
+ vspeed=.1*vspeed;
+ if (speed>0.01) speed=.01;
+ a[0]=a[0]+speed*v[0];
+ a[1]=a[1]+speed*v[1];
+ a[2]=a[2]+speed*v[2];
+ }
+}
projects / xscreensaver / blobdiff