+++ /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)
-
-#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