/*
- * Fireworkx 1.3 - pyrotechnics simulation program
- * Copyright (c) 1999-2004 Rony B Chandran <ronybc@asia.com>
+ * Fireworkx 1.5 - pyrotechnics simulation program
+ * Copyright (c) 1999-2005 Rony B Chandran <ronybc@asia.com>
*
+ * From Kerala, INDIA
+ *
* url: http://www.ronybc.8k.com
*
* Permission to use, copy, modify, distribute, and sell this software and its
* Fixed array access problems by beating on it with a large hammer.
* Nicholas Miell <nmiell@gmail.com>
*
+ * Freed 'free'ing up of memory by adding the forgotten 'XSync's
+ * Renuka S <renuka@local.net>
+ *
*/
#include <math.h>
#include "screenhack.h"
#include <X11/Xutil.h>
-#define FWXVERSION "1.3"
+#define FWXVERSION "1.5"
-#define WIDTH 640
-#define HEIGHT 480
-#define SHELLCOUNT 3
+#define SHELLCOUNT 3 /* 3 or 5 */
#define PIXCOUNT 500 /* 500 */
-#define RNDLIFE0 250 /* violent */
-#define RNDLIFE1 1200 /* 1200 */
-#define MINLIFE0 50 /* violent */
-#define MINLIFE1 500 /* 500 */
#define POWER 5 /* 5 */
#define FTWEAK 12 /* 12 */
+#if HAVE_X86_MMX
+void mmx_blur(char *a, int b, int c, int d);
+void mmx_glow(char *a, int b, int c, int d, char *e);
+#endif
+
+#define rnd(x) ((int)(random() % (x)))
+
static int depth;
static int bigendian;
-static Bool light_on = True;
-static Bool fade_on = False;
-static Bool shoot = False;
-static Bool verbose = False;
-static int delay = 0;
-static int fsc_width = 0;
-static int fsc_height= 0;
-static int rndlife = RNDLIFE1;
-static int minlife = MINLIFE1;
-static float light_fade = 0.99;
-static unsigned char *real_palaka1 = NULL;
-static unsigned char *real_palaka2 = NULL;
+static Bool flash_on = True;
+static Bool glow_on = True;
+static Bool verbose = False;
+static Bool shoot = False;
+static int width;
+static int height;
+static int rndlife;
+static int minlife;
+static int delay = 0;
+static float flash_fade = 0.99;
static unsigned char *palaka1=NULL;
static unsigned char *palaka2=NULL;
static XImage *xim=NULL;
float yv;}firepix;
typedef struct {
+ unsigned int cx,cy;
unsigned int life;
unsigned int color;
- unsigned int cx,cy;
unsigned int special;
unsigned int cshift;
unsigned int vgn,shy;
- float air,lum;
+ float air,flash;
firepix *fpix; }fireshell;
-int seed = 2387776;
-int rnd(int x)
-{ /* xscreensaver */
- if ((seed = seed % 44488 * 48271 - seed / 44488 * 3399) < 0)
- seed += 2147483647;
- return (seed-1) % x;
-}
-
int explode(fireshell *fs)
{
- float air,adg = 0.001; /* gravity */
+ float air,adg = 0.001; /* gravity */
unsigned int n,c;
- unsigned int h = fsc_height;
- unsigned int w = fsc_width;
+ unsigned int h = height;
+ unsigned int w = width;
unsigned int *prgb;
unsigned char *palaka = palaka1;
firepix *fp = fs->fpix;
if(fs->vgn){
if(--fs->cy == fs->shy){
- fs->vgn = 0;
- fs->lum = 20000;} /* millions of jouls..! */
+ fs->vgn = 0;
+ fs->flash = rnd(30000)+15000;}
else{
- fs->lum = 50+(fs->cy - fs->shy)*2;
+ fs->flash = 50+(fs->cy - fs->shy)*2;
+ prgb=(unsigned int *)(palaka + (fs->cy * w + fs->cx + rnd(5)-2)*4);
+ *prgb=(rnd(8)+8)*0x000f0f10;
return(1);}}
if(fs->cshift) --fs->cshift;
if((fs->cshift+1)%50==0) fs->color = ~fs->color;
c = fs->color;
air = fs->air;
- fs->lum *= light_fade;
+ fs->flash *= flash_fade;
for(n=PIXCOUNT;n;n--){
if(fp->burn){ --fp->burn;
if(fs->special){
fp->x += fp->xv = fp->xv * air + (float)(rnd(200)-100)/2000;
- fp->y += fp->yv = fp->yv * air + (float)(rnd(200)-100)/2000 +adg; }
+ fp->y += fp->yv = fp->yv * air + (float)(rnd(200)-100)/2000 + adg; }
else{
fp->x += fp->xv = fp->xv * air + (float)(rnd(200)-100)/20000;
fp->y += fp->yv = fp->yv * air + adg; }
prgb = (unsigned int *)(palaka + ((int)fp->y * w + (int)fp->x)*4);
*prgb = c; }
} fp++;
- } return(--(fs->life));
-}
+ } return(--fs->life); }
void recycle(fireshell *fs,int x,int y)
{
fs->vgn = shoot;
fs->shy = y;
fs->cx = x;
- fs->cy = shoot ? fsc_height : y ;
+ fs->cy = shoot ? height : y ;
fs->color = (rnd(155)+100) <<16 |
(rnd(155)+100) <<8 |
rnd(255);
fs->life = rnd(rndlife)+minlife;
fs->air = 1-(float)(rnd(200))/10000;
- fs->lum = 20000;
+ fs->flash = rnd(30000)+15000; /* million jouls */
fs->cshift = !rnd(5) ? 120:0;
fs->special = !rnd(10) ? 1:0;
+ if(verbose)
+ printf("recycle(): color = %x air = %f life = %d \n",fs->color,fs->air,fs->life);
pixlife = rnd(fs->life)+fs->life/10+1; /* ! */
for(n=0;n<PIXCOUNT;n++){
fp->burn = rnd(pixlife)+32;
(float)(rnd(20000)-10000)/10000;
fp->x = x;
fp->y = y;
- fp++; }
-}
+ fp++; }}
-void blur_best(void)
+void glow(void)
{
- int n;
- unsigned int w = fsc_width;
- unsigned int h = fsc_height;
- unsigned char *pa, *pb, *pm;
+ unsigned int n,q;
+ unsigned int w = width;
+ unsigned int h = height;
+ unsigned char *pa, *pb, *pm, *po;
pm = palaka1;
- for(n=0;n<w*4;n++) pm[n]=0; /* clean first line */
- pm+=n;
- h-=2;
+ po = palaka2;
+ for(n=0;n<w*4;n++)
+ {pm[n]=0; po[n]=0;} /* clean first line */
+ pm+=n; po+=n; h-=2;
pa = pm-(w*4);
pb = pm+(w*4);
- if(fade_on){
- for(n=0;n<w*h*4;n++){
- pm[n]=(pm[n-4] + pm[n] + pm[n+4] +
+ for(n=4;n<w*h*4-4;n++){
+ q = pm[n-4] + (pm[n]*8) + pm[n+4] +
pa[n-4] + pa[n] + pa[n+4] +
- pb[n-4] + pb[n] + pb[n+4] +
- pm[n] + pm[n] + (pm[n]<<2))/ 16;}}
- else{
- for(n=0;n<w*h*4;n++){
- pm[n]=(pm[n-4] + pm[n] + pm[n+4] +
+ pb[n-4] + pb[n] + pb[n+4];
+ q -= q>8 ? 8:q;
+ pm[n] = q/16;
+ q = q/8;
+ if(q>255) q=255;
+ po[n] = q;}
+ pm+=n; po+=n;
+ for(n=0;n<w*4;n++)
+ {pm[n]=0; po[n]=0;}} /* clean last line */
+
+void blur(void)
+{
+ unsigned int n,q;
+ unsigned int w = width;
+ unsigned int h = height;
+ unsigned char *pa, *pb, *pm;
+ pm = palaka1;
+ pm += w*4; h-=2; /* line 0&h */
+ pa = pm-(w*4);
+ pb = pm+(w*4);
+ for(n=4;n<w*h*4-4;n++){
+ q = pm[n-4] + (pm[n]*8) + pm[n+4] +
pa[n-4] + pa[n] + pa[n+4] +
- pb[n-4] + pb[n] + pb[n+4])/ 9;}}
- pm+=n;
- for(n=0;n<w*4;n++) pm[n]=0; /* clean last line */
-}
+ pb[n-4] + pb[n] + pb[n+4];
+ q -= q>8 ? 8:q;
+ pm[n] = q>>4;}
+ pm += n-4; /* last line */
+ for(n=0;n<w*4+4;n++) pm[n]=0;
+ pm = palaka1; /* first line */
+ for(n=0;n<w*4+4;n++) pm[n]=pm[n+w*4]; }
void light_2x2(fireshell *fss)
{
unsigned int l,t,n,x,y;
float s;
- int w = fsc_width;
- int h = fsc_height;
+ int w = width;
+ int h = height;
unsigned char *dim = palaka2;
unsigned char *sim = palaka1;
int nl = w*4;
fireshell *f;
+ if(glow_on) sim=dim;
for(y=0;y<h;y+=2){
for(x=0;x<w;x+=2){
f = fss; s = 0;
for(n=SHELLCOUNT;n;n--,f++){
- s += f->lum / ( 1 + sqrt((f->cx - x)*(f->cx - x)+(f->cy - y)*(f->cy - y))); }
+ s += f->flash/(sqrt(1+(f->cx - x)*(f->cx - x)+
+ (f->cy - y)*(f->cy - y)));}
l = s;
t = l + sim[0];
- dim[0] = (t > 255 ? 255 : t); /* cmov's */
+ dim[0] = (t > 255 ? 255 : t);
t = l + sim[1];
dim[1] = (t > 255 ? 255 : t);
t = l + sim[2];
t = l + sim[nl+6];
dim[nl+6] = (t > 255 ? 255 : t);
- sim += 8; dim += 8; } sim += nl; dim += nl;}
-}
+ sim += 8; dim += 8; } sim += nl; dim += nl;}}
void resize(Display *display, Window win)
{
XWindowAttributes xwa;
XGetWindowAttributes (display, win, &xwa);
- xwa.width -= xwa.width % 4;
- xwa.height -= xwa.height % 4;
- if(xwa.height != fsc_height || xwa.width != fsc_width) {
- fsc_width = xwa.width;
- fsc_height = xwa.height;
+ xwa.width -= xwa.width % 2;
+ xwa.height -= xwa.height % 2;
+ if(xwa.height != height || xwa.width != width) {
+ width = xwa.width;
+ height = xwa.height;
+ if (verbose)
+ printf("sky size: %dx%d ------------------------------\n",width,height);
+ XSync(display,0);
if (xim) {
if (xim->data==(char *)palaka2) xim->data=NULL;
XDestroyImage(xim);
- if (palaka2!=palaka1) free(real_palaka2);
- free(real_palaka1);
+ XSync(display,0);
+ if (palaka2!=palaka1) free(palaka2 - 8);
+ free(palaka1 - 8);
}
- palaka1 = NULL;
- palaka2 = NULL;
+ palaka1 = NULL;
+ palaka2 = NULL;
xim = XCreateImage(display, xwa.visual, xwa.depth, ZPixmap, 0, 0,
- fsc_width, fsc_height, 32, 0);
- real_palaka1 = calloc(xim->height + 4,xim->width*4);
- palaka1 = real_palaka1 + xim->width * 4 * 2;
- if(light_on) {
- real_palaka2 = calloc(xim->height + 4,xim->width*4);
- palaka2 = real_palaka2 + xim->width * 4 * 2;
- } else {
- palaka2 = palaka1;
- }
+ width, height, 8, 0);
+ palaka1 = (unsigned char *) calloc(xim->height+1,xim->width*4) + 8;
+ if(flash_on|glow_on)
+ palaka2 = (unsigned char *) calloc(xim->height+1,xim->width*4) + 8;
+ else
+ palaka2 = palaka1;
if (depth>=24)
xim->data = (char *)palaka2;
else
- xim->data = calloc(xim->height,xim->bytes_per_line);
- }
-}
+ xim->data = calloc(xim->height,xim->bytes_per_line); }}
void put_image(Display *display, Window win, GC gc, XImage *xim)
{
xim->data[i++] = (((7*g)/256)*36)+(((6*r)/256)*6)+((6*b)/256);
}
}
- XPutImage(display,win,gc,xim,0,0,0,0,xim->width,xim->height);
-}
+ XPutImage(display,win,gc,xim,0,0,0,0,xim->width,xim->height); }
void sniff_events(Display *dis, Window win, fireshell *fss)
{
XNextEvent (dis, &e);
if (e.type == ConfigureNotify) resize(dis,win);
if (e.type == ButtonPress) recycle(fss,e.xbutton.x, e.xbutton.y);
- screenhack_handle_event(dis,&e);}
-}
+ screenhack_handle_event(dis,&e); }}
char *progclass = "Fireworkx";
char *defaults [] = {
".background: black",
".foreground: white",
- "*delay: 5000",
- "*maxlife: 1200",
- "*light: True",
- "*fade: False",
+ "*delay: 10000", /* never default to zero! */
+ "*maxlife: 2000",
+ "*flash: True",
+ "*glow: True",
"*shoot: False",
"*verbose: False",
0
XrmOptionDescRec options [] = {
{ "-delay", ".delay", XrmoptionSepArg, 0 },
{ "-maxlife", ".maxlife", XrmoptionSepArg, 0 },
- { "-nolight", ".light", XrmoptionNoArg, "False" },
- { "-fade", ".fade", XrmoptionNoArg, "True" },
+ { "-noflash", ".flash", XrmoptionNoArg, "False" },
+ { "-noglow", ".glow", XrmoptionNoArg, "False" },
{ "-shoot", ".shoot", XrmoptionNoArg, "True" },
{ "-verbose", ".verbose", XrmoptionNoArg, "True" },
{ 0, 0, 0, 0 }
XWindowAttributes xwa;
GC gc;
XGCValues gcv;
- firepix *fpixs, *fpix;
- fireshell *fshells, *fshell;
- fade_on = get_boolean_resource("fade" , "Boolean");
- light_on = get_boolean_resource("light" , "Boolean");
+ firepix *fpix, *ffpix;
+ fireshell *fshell, *ffshell;
+ glow_on = get_boolean_resource("glow" , "Boolean");
+ flash_on = get_boolean_resource("flash" , "Boolean");
shoot = get_boolean_resource("shoot" , "Boolean");
verbose = get_boolean_resource("verbose" , "Boolean");
rndlife = get_integer_resource("maxlife" , "Integer");
delay = get_integer_resource("delay" , "Integer");
minlife = rndlife/4;
- if(rndlife<1000) light_fade=0.98;
- if(rndlife<500) light_fade=0.97;
- if(fade_on) light_fade=0.97;
+ if(rndlife<1000) flash_fade=0.98;
+ if(rndlife<500) flash_fade=0.97;
if(verbose){
printf("Fireworkx %s - pyrotechnics simulation program \n", FWXVERSION);
- printf("Copyright (c) 1999-2004 Rony B Chandran <ronybc@asia.com> \n\n");
+ printf("Copyright (c) 1999-2005 Rony B Chandran <ronybc@asia.com> \n\n");
printf("url: http://www.ronybc.8k.com \n\n");}
XGetWindowAttributes(display,win,&xwa);
if(depth==8){
if(verbose){
- printf("Pseudocolor color: use '-fade' & '-nolight' for better results.\n");}
+ printf("Pseudocolor color: use '-noflash' for better results.\n");}
colors = (XColor *) calloc(sizeof(XColor),ncolors+1);
writable = False;
make_smooth_colormap(display, vi, cmap, colors, &ncolors,
gc = XCreateGC(display, win, 0, &gcv);
resize(display,win); /* initialize palakas */
- seed += time(0);
- fpixs = malloc(sizeof(firepix) * PIXCOUNT * SHELLCOUNT);
- fshells = malloc(sizeof(fireshell) * SHELLCOUNT);
- fshell = fshells;
- fpix = fpixs;
+ ffpix = malloc(sizeof(firepix) * PIXCOUNT * SHELLCOUNT);
+ ffshell = malloc(sizeof(fireshell) * SHELLCOUNT);
+ fshell = ffshell;
+ fpix = ffpix;
for (n=0;n<SHELLCOUNT;n++){
fshell->fpix = fpix;
- recycle (fshell,rnd(fsc_width),rnd(fsc_height));
+ recycle (fshell,rnd(width),rnd(height));
fshell++;
fpix += PIXCOUNT; }
while(1) {
for(q=FTWEAK;q;q--){
- fshell=fshells;
+ fshell=ffshell;
for(n=SHELLCOUNT;n;n--){
if (!explode(fshell)){
- recycle(fshell,rnd(fsc_width),rnd(fsc_height)); }
+ recycle(fshell,rnd(width),rnd(height)); }
fshell++; }}
- if(light_on) light_2x2(fshells);
+#if HAVE_X86_MMX
+ if(glow_on) mmx_glow(palaka1,width,height,8,palaka2);
+#else
+ if(glow_on) glow();
+#endif
+ if(flash_on) light_2x2(ffshell);
put_image(display,win,gc,xim);
usleep(delay);
XSync(display,0);
- sniff_events(display, win, fshells);
- blur_best();}
+ sniff_events(display, win, ffshell);
+#if HAVE_X86_MMX
+ if(!glow_on) mmx_blur(palaka1,width,height,8);
+#else
+ if(!glow_on) blur();
+#endif
-}
+}}
projects / xscreensaver / blobdiff