/*
- * Fireworkx 1.3 - pyrotechnics simulation program
- * Copyright (c) 1999-2004 Rony B Chandran <ronybc@asia.com>
- *
- * url: http://www.ronybc.8k.com
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation. No representations are made about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- *
- * Additional programming:
- * ------------------------
- * Support for different display color modes:
- * Jean-Pierre Demailly <Jean-Pierre.Demailly@ujf-grenoble.fr>
- *
- * Fixed array access problems by beating on it with a large hammer.
- * Nicholas Miell <nmiell@gmail.com>
- *
+ Fireworkx 2.2 - Pyrotechnic explosions simulation,
+ an eyecandy, live animating colorful fireworks super-blasts..!
+ Copyright (GPL) 1999-2013 Rony B Chandran <ronybc@gmail.com>
+
+ From Kerala, INDIA
+ Website: http://www.ronybc.com
+
+ Permission to use, copy, modify, distribute, and sell this software and its
+ documentation for any purpose is hereby granted without fee, provided that
+ the above copyright notice appear in all copies and that both that
+ copyright notice and this permission notice appear in supporting
+ documentation. No representations are made about the suitability of this
+ software for any purpose. It is provided "as is" without express or
+ implied warranty.
+
+ 2004-OCT: ronybc: Landed on Xscreensaver..!
+ 2012-DEC: ronybc: Almost rewrite of the last version (>4 years old)
+ with SSE2 optimization, colored light flashes,
+ HSV color and many visual and speed improvements.
+
+ Additional coding:
+ ---------------------------------------------------------------------------------
+ Support for different display color modes: put_image()
+ Jean-Pierre Demailly <Jean-Pierre.Demailly@ujf-grenoble.fr>
+
+ Fixed array access problems by beating on it with a large hammer.
+ Nicholas Miell <nmiell@gmail.com>
+
+ Help 'free'ing up of memory with needed 'XSync's.
+ Renuka S <renuka@ronybc.com>
+ Rugmini R Chandran <rugmini@ronybc.com>
+\
*/
-#include <math.h>
#include "screenhack.h"
-#include <X11/Xutil.h>
-
-#define FWXVERSION "1.3"
-
-#define WIDTH 640
-#define HEIGHT 480
-#define SHELLCOUNT 3
-#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 */
-
-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 unsigned char *palaka1=NULL;
-static unsigned char *palaka2=NULL;
-static XImage *xim=NULL;
-static XColor *colors;
-static int ncolors = 255;
-
-typedef struct {
- unsigned int burn;
- float x;
- float y;
- float xv;
- float yv;}firepix;
-
-typedef struct {
- unsigned int life;
- unsigned int color;
- unsigned int cx,cy;
- unsigned int special;
- unsigned int cshift;
- unsigned int vgn,shy;
- float air,lum;
- 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;
+
+#ifdef __SSE2__
+# include <emmintrin.h>
+#endif
+
+#define FWXVERSION "2.2"
+
+#define WIDTH 1024 /* 888 */
+#define HEIGHT 632 /* 548 */
+#define SHELLCOUNT 4 /* FIXED NUMBER; for SSE optimization */
+#define PIXCOUNT 500 /* 500 */
+#define SHELL_LIFE_DEFAULT 32 /* 32 */
+#define SHELL_LIFE_RATIO 6 /* 6 */
+#define POWDER 5.0 /* 5.0 */
+#define FTWEAK 12 /* 12 */
+#define FLASH_ZOOM 0.8 /* 1.0 */
+#define G_ACCELERATION 0.001 /* GRAVITY */
+
+typedef struct
+{
+ unsigned int burn;
+ float x, y;
+ float xv, yv;
+} firepix;
+
+typedef struct
+{
+ unsigned int cx, cy;
+ unsigned int seq_number, life;
+ unsigned int bicolor, flies, hshift, vshift;
+ unsigned int mortar_fired, explode_y;
+ float air_drag, vshift_phase;
+ float flash_r, flash_g, flash_b;
+ unsigned int h;
+ double s, v;
+ unsigned char r, g, b;
+ firepix *fpix;
+} fireshell;
+
+struct state
+{
+ unsigned int fps_on;
+ unsigned int flash_on;
+ unsigned int shoot;
+ unsigned int verbose;
+ unsigned int width;
+ unsigned int height;
+ unsigned int fullscreen;
+ unsigned int max_shell_life;
+ unsigned int delay;
+ float flash_fade;
+ float *light_map;
+ unsigned char *palaka1;
+ unsigned char *palaka2;
+ void *mem1;
+ void *mem2;
+ fireshell *fireshell_array;
+
+ Display *dpy;
+ Window window;
+ XImage *xim;
+ GC gc;
+ XColor *colors;
+ int depth;
+ int bigendian;
+ int ncolors;
+ Bool button_down_p;
+ int deferred;
+
+};
+
+/*
+ will return zero.. divide with care.
+*/
+static unsigned int rnd(unsigned int x)
+{
+ return(random() % x);
}
-int explode(fireshell *fs)
+static void fs_roll_rgb(fireshell *fs)
{
- float air,adg = 0.001; /* gravity */
- unsigned int n,c;
- unsigned int h = fsc_height;
- unsigned int w = fsc_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..! */
- else{
- fs->lum = 50+(fs->cy - fs->shy)*2;
- 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;
- 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; }
- else{
- fp->x += fp->xv = fp->xv * air + (float)(rnd(200)-100)/20000;
- fp->y += fp->yv = fp->yv * air + adg; }
- if(fp->y > h){
- if(rnd(5)==3) {fp->yv *= -0.24; fp->y = h;}
- else fp->burn=0;} /* touch muddy ground :) */
- if(fp->x < w && fp->x > 0 && fp->y < h && fp->y > 0){
- prgb = (unsigned int *)(palaka + ((int)fp->y * w + (int)fp->x)*4);
- *prgb = c; }
- } fp++;
- } return(--(fs->life));
+ unsigned short r, g, b;
+ hsv_to_rgb (fs->h, fs->s, fs->v, &r, &g, &b);
+ fs->r = (unsigned char) (r >> 8);
+ fs->g = (unsigned char) (g >> 8);
+ fs->b = (unsigned char) (b >> 8);
}
-void recycle(fireshell *fs,int x,int y)
+static void mix_colors(fireshell *fs)
{
- unsigned int n,pixlife;
- firepix *fp = fs->fpix;
- fs->vgn = shoot;
- fs->shy = y;
- fs->cx = x;
- fs->cy = shoot ? fsc_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->cshift = !rnd(5) ? 120:0;
- fs->special = !rnd(10) ? 1:0;
- pixlife = rnd(fs->life)+fs->life/10+1; /* ! */
- for(n=0;n<PIXCOUNT;n++){
- fp->burn = rnd(pixlife)+32;
- fp->xv = POWER*(float)(rnd(20000)-10000)/10000;
- fp->yv = sqrt(POWER*POWER - fp->xv * fp->xv) *
- (float)(rnd(20000)-10000)/10000;
- fp->x = x;
- fp->y = y;
- fp++; }
+ float flash;
+ fs->h = rnd(360);
+ fs->s = frand(0.4) + 0.6;
+ fs->v = 1.0;
+ fs_roll_rgb(fs);
+
+ flash = rnd(444) + 111; /* Mega Jouls ! */
+ fs->flash_r = fs->r * flash;
+ fs->flash_g = fs->g * flash;
+ fs->flash_b = fs->b * flash;
}
-void blur_best(void)
+static void render_light_map(struct state *st, fireshell *fs)
{
- int n;
- unsigned int w = fsc_width;
- unsigned int h = fsc_height;
- unsigned char *pa, *pb, *pm;
- pm = palaka1;
- for(n=0;n<w*4;n++) pm[n]=0; /* clean first line */
- pm+=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] +
- 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] +
- 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 */
+ signed int x, y, v = 0;
+ for (y = 0, v = fs->seq_number; y < st->height; y += 2)
+ {
+ for (x = 0; x < st->width; x += 2, v += SHELLCOUNT)
+ {
+ double f;
+ f = sqrt((fs->cx - x) * (fs->cx - x) + (fs->cy - y) * (fs->cy - y)) + 4.0;
+ f = FLASH_ZOOM / f;
+ f += pow(f,0.1) * frand(0.0001); /* dither */
+ st->light_map[v] = f;
+ }
+ }
}
-void light_2x2(fireshell *fss)
+static void recycle(struct state *st, fireshell *fs, unsigned int x, unsigned int y)
{
- unsigned int l,t,n,x,y;
- float s;
- int w = fsc_width;
- int h = fsc_height;
- unsigned char *dim = palaka2;
- unsigned char *sim = palaka1;
- int nl = w*4;
- fireshell *f;
- 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))); }
- l = s;
-
- t = l + sim[0];
- dim[0] = (t > 255 ? 255 : t); /* cmov's */
- t = l + sim[1];
- dim[1] = (t > 255 ? 255 : t);
- t = l + sim[2];
- dim[2] = (t > 255 ? 255 : t);
-
- t = l + sim[4];
- dim[4] = (t > 255 ? 255 : t);
- t = l + sim[5];
- dim[5] = (t > 255 ? 255 : t);
- t = l + sim[6];
- dim[6] = (t > 255 ? 255 : t);
-
- t = l + sim[nl+0];
- dim[nl+0] = (t > 255 ? 255 : t);
- t = l + sim[nl+1];
- dim[nl+1] = (t > 255 ? 255 : t);
- t = l + sim[nl+2];
- dim[nl+2] = (t > 255 ? 255 : t);
-
- t = l + sim[nl+4];
- dim[nl+4] = (t > 255 ? 255 : t);
- t = l + sim[nl+5];
- dim[nl+5] = (t > 255 ? 255 : t);
- t = l + sim[nl+6];
- dim[nl+6] = (t > 255 ? 255 : t);
-
- sim += 8; dim += 8; } sim += nl; dim += nl;}
+ unsigned int n, pixlife;
+ firepix *fp = fs->fpix;
+ fs->mortar_fired = st->shoot;
+ fs->explode_y = y;
+ fs->cx = x;
+ fs->cy = st->shoot ? st->height : y ;
+ fs->life = rnd(st->max_shell_life) + (st->max_shell_life/SHELL_LIFE_RATIO);
+ fs->life += !rnd(25) ? st->max_shell_life * 5 : 0;
+ fs->air_drag = 1.0 - (float)(rnd(200)) / (10000.0 + fs->life);
+ fs->bicolor = !rnd(5) ? 120 : 0;
+ fs->flies = !rnd(10) ? 1 : 0; /* flies' motion */
+ fs->hshift = !rnd(5) ? 1 : 0; /* hue shifting */
+ fs->vshift = !rnd(10) ? 1 : 0; /* value shifting */
+ fs->vshift_phase = M_PI/2.0;
+ pixlife = rnd(fs->life) + fs->life / 10 + 1; /* ! */
+ for (n = 0; n < PIXCOUNT; n++)
+ {
+ fp->burn = rnd(pixlife) + 32;
+ fp->xv = frand(2.0) * POWDER - POWDER;
+ fp->yv = sqrt(POWDER * POWDER - fp->xv * fp->xv) * (frand(2.0) - 1.0);
+ fp->x = x;
+ fp->y = y;
+ fp++;
+ }
+ mix_colors(fs);
+ render_light_map(st, fs);
}
-void resize(Display *display, Window win)
+static void recycle_oldest(struct state *st, unsigned int x, unsigned int y)
{
- 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;
- if (xim) {
- if (xim->data==(char *)palaka2) xim->data=NULL;
- XDestroyImage(xim);
- if (palaka2!=palaka1) free(real_palaka2);
- free(real_palaka1);
- }
- 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;
- }
- if (depth>=24)
- xim->data = (char *)palaka2;
- else
- xim->data = calloc(xim->height,xim->bytes_per_line);
- }
+ unsigned int n;
+ fireshell *fs, *oldest;
+ fs = oldest = st->fireshell_array;
+ for (n = 0; n < SHELLCOUNT; n++)
+ {
+ if(fs[n].life < oldest->life) oldest = &fs[n];
+ }
+ recycle(st, oldest, x, y);
}
-void put_image(Display *display, Window win, GC gc, XImage *xim)
+static void rotate_hue(fireshell *fs, int dh)
{
- int x,y,i,j;
- unsigned char r, g, b;
- i = 0;
- j = 0;
- if (depth==16) {
- if(bigendian)
- for (y=0;y<xim->height; y++)
- for (x=0;x<xim->width; x++) {
- r = palaka2[j++];
- g = palaka2[j++];
- b = palaka2[j++];
- j++;
- xim->data[i++] = (g&224)>>5 | (r&248);
- xim->data[i++] = (b&248)>>3 | (g&28)<<3;
- }
- else
- for (y=0;y<xim->height; y++)
- for (x=0;x<xim->width; x++) {
- r = palaka2[j++];
- g = palaka2[j++];
- b = palaka2[j++];
- j++;
- xim->data[i++] = (b&248)>>3 | (g&28)<<3;
- xim->data[i++] = (g&224)>>5 | (r&248);
- }
- }
- if (depth==15) {
- if(bigendian)
- for (y=0;y<xim->height; y++)
- for (x=0;x<xim->width; x++) {
- r = palaka2[j++];
- g = palaka2[j++];
- b = palaka2[j++];
- j++;
- xim->data[i++] = (g&192)>>6 | (r&248)>>1;
- xim->data[i++] = (b&248)>>3 | (g&56)<<2;
- }
- else
- for (y=0;y<xim->height; y++)
- for (x=0;x<xim->width; x++) {
- r = palaka2[j++];
- g = palaka2[j++];
- b = palaka2[j++];
- j++;
- xim->data[i++] = (b&248)>>3 | (g&56)<<2;
- xim->data[i++] = (g&192)>>6 | (r&248)>>1;
- }
- }
- if (depth==8) {
- for (y=0;y<xim->height; y++)
- for (x=0;x<xim->width; x++) {
- r = palaka2[j++];
- g = palaka2[j++];
- b = palaka2[j++];
- j++;
- 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);
+ fs->h = fs->h + dh;
+ fs->s = fs->s - 0.001;
+ fs_roll_rgb(fs);
}
-void sniff_events(Display *dis, Window win, fireshell *fss)
+static void wave_value(fireshell *fs)
{
- XEvent e;
- while (XPending(dis)){
- 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);}
+ fs->vshift_phase = fs->vshift_phase + 0.008;
+ fs->v = fabs(sin(fs->vshift_phase));
+ fs_roll_rgb(fs);
}
+static int explode(struct state *st, fireshell *fs)
+{
+ float air_drag;
+ unsigned int n;
+ unsigned int h = st->height;
+ unsigned int w = st->width;
+ unsigned char r, g, b;
+ unsigned char *prgba;
+ unsigned char *palaka = st->palaka1;
+ firepix *fp = fs->fpix;
+ if (fs->mortar_fired)
+ {
+ if (--fs->cy == fs->explode_y)
+ {
+ fs->mortar_fired = 0;
+ mix_colors(fs);
+ render_light_map(st, fs);
+ }
+ else
+ {
+ fs->flash_r =
+ fs->flash_g =
+ fs->flash_b = 50 + (fs->cy - fs->explode_y) * 10;
+ prgba = palaka + (fs->cy * w + fs->cx + rnd(5) - 2) * 4;
+ prgba[0] = (rnd(32) + 128);
+ prgba[1] = (rnd(32) + 128);
+ prgba[2] = (rnd(32) + 128);
+ return(1);
+ }
+ }
+ if ((fs->bicolor + 1) % 50 == 0) rotate_hue(fs, 180);
+ if (fs->bicolor) --fs->bicolor;
+ if (fs->hshift) rotate_hue(fs, rnd(8));
+ if (fs->vshift) wave_value(fs);
+ if (fs->flash_r > 1.0) fs->flash_r *= st->flash_fade;
+ if (fs->flash_g > 1.0) fs->flash_g *= st->flash_fade;
+ if (fs->flash_b > 1.0) fs->flash_b *= st->flash_fade;
+ air_drag = fs->air_drag;
+ r = fs->r;
+ g = fs->g;
+ b = fs->b;
+ for (n = 0; n < PIXCOUNT; n++, fp++)
+ {
+ if (!fp->burn) continue;
+ --fp->burn;
+ if (fs->flies)
+ {
+ fp->x += fp->xv = fp->xv * air_drag + frand(0.1) - 0.05;
+ fp->y += fp->yv = fp->yv * air_drag + frand(0.1) - 0.05 + G_ACCELERATION;
+ }
+ else
+ {
+ fp->x += fp->xv = fp->xv * air_drag + frand(0.01) - 0.005;
+ fp->y += fp->yv = fp->yv * air_drag + frand(0.005) - 0.0025 + G_ACCELERATION;
+ }
+ if (fp->y > h)
+ {
+ if (rnd(5) == 3)
+ {
+ fp->yv *= -0.24;
+ fp->y = h;
+ }
+ /* touch muddy ground :) */
+ else fp->burn = 0;
+ }
+ if (fp->x < w && fp->x > 0 && fp->y < h && fp->y > 0)
+ {
+ prgba = palaka + ((int)fp->y * w + (int)fp->x) * 4;
+ prgba[0] = b;
+ prgba[1] = g;
+ prgba[2] = r;
+ }
+ }
+ return(--fs->life);
+}
-char *progclass = "Fireworkx";
+#ifdef __SSE2__
-char *defaults [] = {
- ".background: black",
- ".foreground: white",
- "*delay: 5000",
- "*maxlife: 1200",
- "*light: True",
- "*fade: False",
- "*shoot: False",
- "*verbose: False",
- 0
-};
+/* SSE2 optimized versions of glow_blur() and chromo_2x2_light() */
-XrmOptionDescRec options [] = {
- { "-delay", ".delay", XrmoptionSepArg, 0 },
- { "-maxlife", ".maxlife", XrmoptionSepArg, 0 },
- { "-nolight", ".light", XrmoptionNoArg, "False" },
- { "-fade", ".fade", XrmoptionNoArg, "True" },
- { "-shoot", ".shoot", XrmoptionNoArg, "True" },
- { "-verbose", ".verbose", XrmoptionNoArg, "True" },
- { 0, 0, 0, 0 }
-};
+static void glow_blur(struct state *st)
+{
+ unsigned int n, nn;
+ unsigned char *ps = st->palaka1;
+ unsigned char *pd = st->palaka2;
+ unsigned char *pa = st->palaka1 - (st->width * 4);
+ unsigned char *pb = st->palaka1 + (st->width * 4);
+ __m128i xmm0, xmm1, xmm2, xmm3, xmm4;
+
+ xmm0 = _mm_setzero_si128();
+ nn = st->width * st->height * 4;
+ for (n = 0; n < nn; n+=16)
+ {
+ _mm_prefetch((const void *)&ps[n+16],_MM_HINT_T0);
+ _mm_prefetch((const void *)&pa[n+16],_MM_HINT_T0);
+ _mm_prefetch((const void *)&pb[n+16],_MM_HINT_T0);
+
+ xmm1 = _mm_load_si128((const __m128i*)&ps[n]);
+ xmm2 = xmm1;
+ xmm1 = _mm_unpacklo_epi8(xmm1,xmm0);
+ xmm2 = _mm_unpackhi_epi8(xmm2,xmm0);
+ xmm3 = _mm_loadu_si128((const __m128i*)&ps[n+4]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm3 = _mm_slli_epi16(xmm3,3);
+ xmm4 = _mm_slli_epi16(xmm4,3);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+ xmm3 = _mm_loadu_si128((const __m128i*)&ps[n+8]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+
+ xmm3 = _mm_load_si128((const __m128i*)&pa[n]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+ xmm3 = _mm_loadu_si128((const __m128i*)&pa[n+4]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+ xmm3 = _mm_loadu_si128((const __m128i*)&pa[n+8]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+
+ xmm3 = _mm_load_si128((const __m128i*)&pb[n]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+ xmm3 = _mm_loadu_si128((const __m128i*)&pb[n+4]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+ xmm3 = _mm_loadu_si128((const __m128i*)&pb[n+8]);
+ xmm4 = xmm3;
+ xmm3 = _mm_unpacklo_epi8(xmm3,xmm0);
+ xmm4 = _mm_unpackhi_epi8(xmm4,xmm0);
+ xmm1 = _mm_add_epi16(xmm1,xmm3);
+ xmm2 = _mm_add_epi16(xmm2,xmm4);
+
+ xmm3 = xmm1;
+ xmm4 = xmm2;
+ xmm1 = _mm_srli_epi16(xmm1,4);
+ xmm2 = _mm_srli_epi16(xmm2,4);
+ xmm3 = _mm_srli_epi16(xmm3,3);
+ xmm4 = _mm_srli_epi16(xmm4,3);
+ xmm1 = _mm_packus_epi16(xmm1,xmm2);
+ xmm3 = _mm_packus_epi16(xmm3,xmm4);
+
+ _mm_storeu_si128((__m128i*)&ps[n+4], xmm1);
+ _mm_storeu_si128((__m128i*)&pd[n+4], xmm3);
+ }
+}
+
+static void chromo_2x2_light(struct state *st)
+{
+ __m128 xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6;
+ __m128i xmi4, xmi5, xmi6, xmi7;
+
+ unsigned int x, y, v = 0;
+ unsigned int nl = st->width * 4;
+ unsigned char *mem = st->palaka2;
+ fireshell *fs = st->fireshell_array;
+
+ xmm0 = _mm_setr_ps(fs[0].flash_b, fs[0].flash_g, fs[0].flash_r, 0.0);
+ xmm1 = _mm_setr_ps(fs[1].flash_b, fs[1].flash_g, fs[1].flash_r, 0.0);
+ xmm2 = _mm_setr_ps(fs[2].flash_b, fs[2].flash_g, fs[2].flash_r, 0.0);
+ xmm3 = _mm_setr_ps(fs[3].flash_b, fs[3].flash_g, fs[3].flash_r, 0.0);
+
+ for (y = st->height/2; y; y--, mem += nl)
+ {
+ for (x = st->width/4; x; x--, v += 8, mem += 16)
+ {
+ xmm4 = _mm_set1_ps(st->light_map[v+0]);
+ xmm5 = xmm0;
+ xmm5 = _mm_mul_ps(xmm5,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+1]);
+ xmm4 = _mm_mul_ps(xmm4,xmm1);
+ xmm5 = _mm_add_ps(xmm5,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+2]);
+ xmm4 = _mm_mul_ps(xmm4,xmm2);
+ xmm5 = _mm_add_ps(xmm5,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+3]);
+ xmm4 = _mm_mul_ps(xmm4,xmm3);
+ xmm5 = _mm_add_ps(xmm5,xmm4);
+
+ xmm4 = _mm_set1_ps(st->light_map[v+4]);
+ xmm6 = xmm0;
+ xmm6 = _mm_mul_ps(xmm6,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+5]);
+ xmm4 = _mm_mul_ps(xmm4,xmm1);
+ xmm6 = _mm_add_ps(xmm6,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+6]);
+ xmm4 = _mm_mul_ps(xmm4,xmm2);
+ xmm6 = _mm_add_ps(xmm6,xmm4);
+ xmm4 = _mm_set1_ps(st->light_map[v+7]);
+ xmm4 = _mm_mul_ps(xmm4,xmm3);
+ xmm6 = _mm_add_ps(xmm6,xmm4);
+
+ xmi6 = _mm_cvtps_epi32(xmm5);
+ xmi7 = _mm_cvtps_epi32(xmm6);
+ xmi6 = _mm_packs_epi32(xmi6,xmi6);
+ xmi7 = _mm_packs_epi32(xmi7,xmi7);
+
+ xmi4 = _mm_load_si128((const __m128i*) mem);
+ xmi5 = _mm_unpacklo_epi8(xmi5,xmi4);
+ xmi5 = _mm_srli_epi16(xmi5,8);
+ xmi4 = _mm_unpackhi_epi8(xmi4,xmi4);
+ xmi4 = _mm_srli_epi16(xmi4,8);
+ xmi5 = _mm_add_epi16(xmi5,xmi6);
+ xmi4 = _mm_add_epi16(xmi4,xmi7);
+ xmi5 = _mm_packus_epi16(xmi5,xmi4);
+ _mm_store_si128((__m128i*) mem, xmi5);
+
+ xmi4 = _mm_load_si128((const __m128i*) &mem[nl]);
+ xmi5 = _mm_unpacklo_epi8(xmi5,xmi4);
+ xmi5 = _mm_srli_epi16(xmi5,8);
+ xmi4 = _mm_unpackhi_epi8(xmi4,xmi4);
+ xmi4 = _mm_srli_epi16(xmi4,8);
+ xmi5 = _mm_add_epi16(xmi5,xmi6);
+ xmi4 = _mm_add_epi16(xmi4,xmi7);
+ xmi5 = _mm_packus_epi16(xmi5,xmi4);
+ _mm_store_si128((__m128i*) &mem[nl], xmi5);
+ }
+ }
+}
+
+#else
+
+static void glow_blur(struct state *st)
+{
+ unsigned int n, q;
+ unsigned char *pm = st->palaka1;
+ unsigned char *po = st->palaka2;
+ unsigned char *pa = pm - (st->width * 4);
+ unsigned char *pb = pm + (st->width * 4);
+ /*
+ unsigned int rgba = 0;
+ for (n = st->width*st->height*4; n; n--, pm++, pa++, pb++, po++)
+ {
+ if(++rgba > 3)
+ {
+ rgba = 0;
+ continue;
+ }
+ q = pm[0] + pm[4] * 8 + pm[8] +
+ pa[0] + pa[4] + pa[8] +
+ pb[0] + pb[4] + pb[8];
+ pm[4] = q >> 4;
+ po[4] = q > 2047 ? 255 : q >> 3;
+ }
+ --- using unrolled version ------------
+ */
+ for (n = st->width*st->height*4; n; n-=4)
+ {
+ q = pm[0] + pm[4] * 8 + pm[8] +
+ pa[0] + pa[4] + pa[8] +
+ pb[0] + pb[4] + pb[8];
+ pm[4] = q >> 4;
+ po[4] = q > 2047 ? 255 : q >> 3;
+ q = pm[1] + pm[5] * 8 + pm[9] +
+ pa[1] + pa[5] + pa[9] +
+ pb[1] + pb[5] + pb[9];
+ pm[5] = q >> 4;
+ po[5] = q > 2047 ? 255 : q >> 3;
+ q = pm[2] + pm[6] * 8 + pm[10] +
+ pa[2] + pa[6] + pa[10] +
+ pb[2] + pb[6] + pb[10];
+ pm[6] = q >> 4;
+ po[6] = q > 2047 ? 255 : q >> 3;
+
+ pm+=4, pa+=4, pb+=4, po+=4;
+ }
+}
+
+static inline unsigned char addbs(unsigned char c, unsigned int i)
+{
+ i += c;
+ return(i > 255 ? 255 : i);
+}
+
+static void chromo_2x2_light(struct state *st)
+{
+ unsigned int n, x, y, v = 0;
+ unsigned int nl = st->width * 4;
+ unsigned char *mem = st->palaka2;
+ float r, g, b;
+ float rgb[SHELLCOUNT*4];
+ fireshell *fs = st->fireshell_array;
+
+ for (n = 0, x = 0; n < SHELLCOUNT; n++, x += 4, fs++)
+ {
+ rgb[x ] = fs->flash_r;
+ rgb[x+1] = fs->flash_g;
+ rgb[x+2] = fs->flash_b;
+ }
+
+ for (y = st->height/2; y; y--)
+ {
+ for (x = st->width/2; x; x--, v += 4)
+ {
+ r = rgb[0] * st->light_map[v] + rgb[4] * st->light_map[v+1]
+ + rgb[ 8] * st->light_map[v+2] + rgb[12] * st->light_map[v+3];
+ g = rgb[1] * st->light_map[v] + rgb[5] * st->light_map[v+1]
+ + rgb[ 9] * st->light_map[v+2] + rgb[13] * st->light_map[v+3];
+ b = rgb[2] * st->light_map[v] + rgb[6] * st->light_map[v+1]
+ + rgb[10] * st->light_map[v+2] + rgb[14] * st->light_map[v+3];
+
+ mem[0] = addbs(mem[0], b);
+ mem[1] = addbs(mem[1], g);
+ mem[2] = addbs(mem[2], r);
+ mem[4] = addbs(mem[4], b);
+ mem[5] = addbs(mem[5], g);
+ mem[6] = addbs(mem[6], r);
+
+ mem += nl;
+
+ mem[0] = addbs(mem[0], b);
+ mem[1] = addbs(mem[1], g);
+ mem[2] = addbs(mem[2], r);
+ mem[4] = addbs(mem[4], b);
+ mem[5] = addbs(mem[5], g);
+ mem[6] = addbs(mem[6], r);
+
+ mem -= nl - 8;
+ }
+ mem += nl;
+ }
+}
+
+#endif
-void
-screenhack (Display *display, Window win)
+static void resize(struct state *st)
{
- unsigned int n,q;
- Visual *vi;
- Colormap cmap;
- Bool writable;
- 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");
- 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(verbose){
- printf("Fireworkx %s - pyrotechnics simulation program \n", FWXVERSION);
- printf("Copyright (c) 1999-2004 Rony B Chandran <ronybc@asia.com> \n\n");
- printf("url: http://www.ronybc.8k.com \n\n");}
-
- XGetWindowAttributes(display,win,&xwa);
- depth = xwa.depth;
- vi = xwa.visual;
- cmap = xwa.colormap;
- bigendian = (ImageByteOrder(display) == MSBFirst);
-
- if(depth==8){
- if(verbose){
- printf("Pseudocolor color: use '-fade' & '-nolight' for better results.\n");}
- colors = (XColor *) calloc(sizeof(XColor),ncolors+1);
- writable = False;
- make_smooth_colormap(display, vi, cmap, colors, &ncolors,
- False, &writable, True);
- }
- 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;
- for (n=0;n<SHELLCOUNT;n++){
- fshell->fpix = fpix;
- recycle (fshell,rnd(fsc_width),rnd(fsc_height));
- fshell++;
- fpix += PIXCOUNT; }
-
- while(1) {
- for(q=FTWEAK;q;q--){
- fshell=fshells;
- for(n=SHELLCOUNT;n;n--){
- if (!explode(fshell)){
- recycle(fshell,rnd(fsc_width),rnd(fsc_height)); }
- fshell++; }}
- if(light_on) light_2x2(fshells);
- put_image(display,win,gc,xim);
- usleep(delay);
- XSync(display,0);
- sniff_events(display, win, fshells);
- blur_best();}
+ unsigned int n;
+ fireshell *fs = st->fireshell_array;
+ XWindowAttributes xwa;
+ XGetWindowAttributes (st->dpy, st->window, &xwa);
+ xwa.width -= xwa.width % 4;
+ xwa.height -= xwa.height % 2;
+ st->width = xwa.width;
+ st->height = xwa.height;
+ if (st->verbose)
+ {
+ printf("resolution: %d x %d \n",st->width,st->height);
+ }
+ XSync(st->dpy, 0);
+ if (st->xim)
+ {
+ if (st->xim->data == (char *)st->palaka2) st->xim->data = NULL;
+ XDestroyImage(st->xim);
+ XSync(st->dpy, 0);
+ free(st->mem2);
+ free(st->mem1);
+ }
+ st->xim = XCreateImage(st->dpy, xwa.visual, xwa.depth, ZPixmap, 0, 0,
+ st->width, st->height, 8, 0);
+ if (!st->xim) return;
+
+#ifdef __SSE2___ABANDONED /* causes __ERROR_use_memset_not_bzero_in_xscreensaver__ */
+ st->mem1 = _mm_malloc(((st->height + 2) * st->width + 8)*4, 16);
+ bzero(st->mem1, ((st->height + 2) * st->width + 8)*4);
+ st->mem2 = _mm_malloc(((st->height + 2) * st->width + 8)*4, 16);
+ bzero(st->mem2, ((st->height + 2) * st->width + 8)*4);
+#else
+ st->mem1 = calloc((st->height + 2) * st->width + 8, 4);
+ st->mem2 = calloc((st->height + 2) * st->width + 8, 4);
+#endif
+ st->palaka1 = (unsigned char *) st->mem1 + (st->width * 4 + 16);
+ st->palaka2 = (unsigned char *) st->mem2 + (st->width * 4 + 16);
+
+ if (xwa.depth >= 24)
+ {
+ st->xim->data = (char *)st->palaka2;
+ }
+ else
+ {
+ st->xim->data = calloc(st->height, st->xim->bytes_per_line);
+ }
+ if (st->light_map) free(st->light_map);
+ st->light_map = calloc((st->width * st->height * SHELLCOUNT)/4, sizeof(float));
+ for (n = 0; n < SHELLCOUNT; n++, fs++)
+ {
+ render_light_map(st, fs);
+ }
+}
+
+static void put_image(struct state *st)
+{
+ int x,y,i,j;
+ unsigned char r, g, b;
+ if (!st->xim) return;
+ i = 0;
+ j = 0;
+ if (st->depth==16)
+ {
+ if(st->bigendian)
+ for (y=0; y<st->xim->height; y++)
+ for (x=0; x<st->xim->width; x++)
+ {
+ r = st->palaka2[j++];
+ g = st->palaka2[j++];
+ b = st->palaka2[j++];
+ j++;
+ st->xim->data[i++] = (g&224)>>5 | (r&248);
+ st->xim->data[i++] = (b&248)>>3 | (g&28)<<3;
+ }
+ else
+ for (y=0; y<st->xim->height; y++)
+ for (x=0; x<st->xim->width; x++)
+ {
+ r = st->palaka2[j++];
+ g = st->palaka2[j++];
+ b = st->palaka2[j++];
+ j++;
+ st->xim->data[i++] = (b&248)>>3 | (g&28)<<3;
+ st->xim->data[i++] = (g&224)>>5 | (r&248);
+ }
+ }
+ if (st->depth==15)
+ {
+ if(st->bigendian)
+ for (y=0; y<st->xim->height; y++)
+ for (x=0; x<st->xim->width; x++)
+ {
+ r = st->palaka2[j++];
+ g = st->palaka2[j++];
+ b = st->palaka2[j++];
+ j++;
+ st->xim->data[i++] = (g&192)>>6 | (r&248)>>1;
+ st->xim->data[i++] = (b&248)>>3 | (g&56)<<2;
+ }
+ else
+ for (y=0; y<st->xim->height; y++)
+ for (x=0; x<st->xim->width; x++)
+ {
+ r = st->palaka2[j++];
+ g = st->palaka2[j++];
+ b = st->palaka2[j++];
+ j++;
+ st->xim->data[i++] = (b&248)>>3 | (g&56)<<2;
+ st->xim->data[i++] = (g&192)>>6 | (r&248)>>1;
+ }
+ }
+ if (st->depth==8)
+ {
+ for (y=0; y<st->xim->height; y++)
+ for (x=0; x<st->xim->width; x++)
+ {
+ r = st->palaka2[j++];
+ g = st->palaka2[j++];
+ b = st->palaka2[j++];
+ j++;
+ st->xim->data[i++] = (((7*g)/256)*36)+(((6*r)/256)*6)+((6*b)/256);
+ }
+ }
+ XPutImage(st->dpy,st->window,st->gc,st->xim,0,0,0,0,st->xim->width,st->xim->height);
}
+
+static void *
+fireworkx_init (Display *dpy, Window win)
+{
+ struct state *st = (struct state *) calloc (1, sizeof(*st));
+ unsigned int n;
+ Visual *vi;
+ Colormap cmap;
+ Bool writable;
+ XWindowAttributes xwa;
+ XGCValues gcv;
+ firepix *fp;
+ fireshell *fs;
+
+ st->dpy = dpy;
+ st->window = win;
+ st->xim = NULL;
+ st->flash_on = 1;
+ st->shoot = 0;
+ st->width = 0;
+ st->height = 0;
+ st->max_shell_life = SHELL_LIFE_DEFAULT;
+ st->flash_fade = 0.995;
+ st->light_map = NULL;
+ st->palaka1 = NULL;
+ st->palaka2 = NULL;
+
+ st->flash_on = get_boolean_resource(st->dpy, "flash" , "Boolean");
+ st->shoot = get_boolean_resource(st->dpy, "shoot" , "Boolean");
+ st->verbose = get_boolean_resource(st->dpy, "verbose" , "Boolean");
+ st->max_shell_life = get_integer_resource(st->dpy, "maxlife" , "Integer");
+ /* transition from xscreensaver <= 5.20 */
+ if (st->max_shell_life > 100) st->max_shell_life = 100;
+
+ st->delay = get_integer_resource(st->dpy, "delay" , "Integer");
+
+ st->max_shell_life = pow(10.0,(st->max_shell_life/50.0)+2.7);
+ if(st->max_shell_life < 1000) st->flash_fade = 0.998;
+
+ if(st->verbose)
+ {
+ printf("Fireworkx %s - Pyrotechnics explosions simulation \n", FWXVERSION);
+ printf("Copyright (GPL) 1999-2013 Rony B Chandran <ronybc@gmail.com> \n\n");
+ printf("url: http://www.ronybc.com \n\n");
+ printf("Life = %u\n", st->max_shell_life);
+#ifdef __SSE2__
+ printf("Using SSE2 optimization.\n");
+#endif
+ }
+
+ XGetWindowAttributes(st->dpy,win,&xwa);
+ st->depth = xwa.depth;
+ vi = xwa.visual;
+ cmap = xwa.colormap;
+ st->bigendian = (ImageByteOrder(st->dpy) == MSBFirst);
+
+ if(st->depth==8)
+ {
+ st->colors = (XColor *) calloc(sizeof(XColor),st->ncolors+1);
+ writable = False;
+ make_smooth_colormap(xwa.screen, vi, cmap,
+ st->colors, &st->ncolors,
+ False, &writable, True);
+ }
+ st->gc = XCreateGC(st->dpy, win, 0, &gcv);
+
+ fs = calloc(SHELLCOUNT, sizeof(fireshell));
+ fp = calloc(PIXCOUNT * SHELLCOUNT, sizeof(firepix));
+ st->fireshell_array = fs;
+
+ XGetWindowAttributes (st->dpy, st->window, &xwa);
+ st->depth = xwa.depth;
+
+ resize(st); /* initialize palakas */
+
+ for (n = 0; n < SHELLCOUNT; n++, fs++)
+ {
+ fs->seq_number = n;
+ fs->fpix = fp;
+ recycle (st, fs, rnd(st->width), rnd(st->height));
+ fp += PIXCOUNT;
+ }
+
+ return st;
+}
+
+static unsigned long
+fireworkx_draw (Display *dpy, Window win, void *closure)
+{
+ struct state *st = (struct state *) closure;
+ fireshell *fs;
+ unsigned int n, q;
+ for (q = FTWEAK; q; q--)
+ {
+ fs = st->fireshell_array;
+ for (n = 0; n < SHELLCOUNT; n++, fs++)
+ {
+ if (!explode(st, fs))
+ {
+ if (st->button_down_p)
+ st->deferred++;
+ else
+ recycle(st, fs, rnd(st->width), rnd(st->height));
+ }
+ }
+ }
+
+ while (!st->button_down_p && st->deferred) {
+ st->deferred--;
+ recycle_oldest(st, rnd(st->width), rnd(st->height));
+ }
+
+ glow_blur(st);
+
+ if (st->flash_on)
+ {
+ chromo_2x2_light(st);
+ }
+
+ put_image(st);
+ return st->delay;
+}
+
+static void
+fireworkx_reshape (Display *dpy, Window window, void *closure,
+ unsigned int w, unsigned int h)
+{
+ struct state *st = (struct state *) closure;
+ st->width = w;
+ st->height = h;
+ resize(st);
+}
+
+static Bool
+fireworkx_event (Display *dpy, Window window, void *closure, XEvent *event)
+{
+ struct state *st = (struct state *) closure;
+ if (event->type == ButtonPress)
+ {
+ recycle_oldest(st, event->xbutton.x, event->xbutton.y);
+ st->button_down_p = True;
+ return True;
+ }
+ else if (event->type == ButtonRelease)
+ {
+ st->button_down_p = False;
+ return True;
+ }
+
+ return False;
+}
+
+static void
+fireworkx_free (Display *dpy, Window window, void *closure)
+{
+ struct state *st = (struct state *) closure;
+ free(st->mem2);
+ free(st->mem1);
+ free(st->fireshell_array->fpix);
+ free(st->fireshell_array);
+}
+
+static const char *fireworkx_defaults [] =
+{
+ ".background: black",
+ ".foreground: white",
+ "*delay: 10000", /* never default to zero! */
+ "*maxlife: 32",
+ "*flash: True",
+ "*shoot: False",
+ "*verbose: False",
+ 0
+};
+
+static XrmOptionDescRec fireworkx_options [] =
+{
+ { "-delay", ".delay", XrmoptionSepArg, 0 },
+ { "-maxlife", ".maxlife", XrmoptionSepArg, 0 },
+ { "-no-flash", ".flash", XrmoptionNoArg, "False" },
+ { "-shoot", ".shoot", XrmoptionNoArg, "True" },
+ { "-verbose", ".verbose", XrmoptionNoArg, "True" },
+ { 0, 0, 0, 0 }
+};
+
+XSCREENSAVER_MODULE ("Fireworkx", fireworkx)
projects / xscreensaver / blobdiff