C++ (Cpp) free_galaxies示例

示例#1

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文件： galaxy.c 项目： Gelma/xlockmore-for-13.04

static void
free_galaxy(Display *display, unistruct * gp)
{
	free_galaxies(gp);
	if (gp->pixmap != None) {
		XFreePixmap(display, gp->pixmap);
		gp->pixmap = None;
	}
}

示例#2

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文件： galaxy.c 项目： davehorner/XScreenSaverWin

ENTRYPOINT void
release_galaxy(ModeInfo * mi)
{
 if (universes != NULL) {
  int         screen;

  for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++)
   free_galaxies(&universes[screen]);
  (void) free((void *) universes);
  universes = NULL;
 }
}

示例#3

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文件： galaxy.c 项目： davehorner/XScreenSaverWin

static void
startover(ModeInfo * mi)
{
 unistruct  *gp = &universes[MI_SCREEN(mi)];
 int         i, j; /* more tmp */
 double      w1, w2; /* more tmp */
 double      d, v, w, h; /* yet more tmp */

 gp->step = 0;
 gp->rot_y = 0;
 gp->rot_x = 0;

 if (MI_BATCHCOUNT(mi) < -MINGALAXIES)
  free_galaxies(gp);
 gp->ngalaxies = MI_BATCHCOUNT(mi);
 if (gp->ngalaxies < -MINGALAXIES)
  gp->ngalaxies = NRAND(-gp->ngalaxies - MINGALAXIES + 1) + MINGALAXIES;

 else if (gp->ngalaxies < MINGALAXIES)
  gp->ngalaxies = MINGALAXIES;
 if (gp->galaxies == NULL)
  gp->galaxies = (Galaxy *) calloc(gp->ngalaxies, sizeof (Galaxy));

 for (i = 0; i < gp->ngalaxies; ++i) {
  Galaxy     *gt = &gp->galaxies[i];
  double      sinw1, sinw2, cosw1, cosw2;

#if 1	// hacked by katahiromz
  gt->galcol = NRAND(NCOLORS);
#else
  gt->galcol = NRAND(COLORBASE - 2);
  if (gt->galcol > 1)
   gt->galcol += 2; /* Mult 8; 16..31 no green stars */
  /* Galaxies still may have some green stars but are not all green. */
#endif

  if (gt->stars != NULL) {
   (void) free((void *) gt->stars);
   gt->stars = NULL;
  }
  gt->nstars = (NRAND(MAX_STARS / 2)) + MAX_STARS / 2;
  gt->stars = (Star *) malloc(gt->nstars * sizeof (Star));
  gt->oldpoints = (XPoint *) malloc(gt->nstars * sizeof (XPoint));
  gt->newpoints = (XPoint *) malloc(gt->nstars * sizeof (XPoint));

  w1 = 2.0 * M_PI * FLOATRAND;
  w2 = 2.0 * M_PI * FLOATRAND;
  sinw1 = SINF(w1);
  sinw2 = SINF(w2);
  cosw1 = COSF(w1);
  cosw2 = COSF(w2);

  gp->mat[0][0] = cosw2;
  gp->mat[0][1] = -sinw1 * sinw2;
  gp->mat[0][2] = cosw1 * sinw2;
  gp->mat[1][0] = 0.0;
  gp->mat[1][1] = cosw1;
  gp->mat[1][2] = sinw1;
  gp->mat[2][0] = -sinw2;
  gp->mat[2][1] = -sinw1 * cosw2;
  gp->mat[2][2] = cosw1 * cosw2;

  gt->vel[0] = FLOATRAND * 2.0 - 1.0;
  gt->vel[1] = FLOATRAND * 2.0 - 1.0;
  gt->vel[2] = FLOATRAND * 2.0 - 1.0;
  gt->pos[0] = -gt->vel[0] * DELTAT * gp->f_hititerations + FLOATRAND -
0.5;
  gt->pos[1] = -gt->vel[1] * DELTAT * gp->f_hititerations + FLOATRAND -
0.5;
  gt->pos[2] = -gt->vel[2] * DELTAT * gp->f_hititerations + FLOATRAND -
0.5;

  gt->mass = (int) (FLOATRAND * 1000.0) + 1;

  gp->size = GALAXYRANGESIZE * FLOATRAND + GALAXYMINSIZE;

  for (j = 0; j < gt->nstars; ++j) {
   Star       *st = &gt->stars[j];
   XPoint     *oldp = &gt->oldpoints[j];
   XPoint     *newp = &gt->newpoints[j];

   double      sinw, cosw;

   w = 2.0 * M_PI * FLOATRAND;
   sinw = SINF(w);
   cosw = COSF(w);
   d = FLOATRAND * gp->size;
   h = FLOATRAND * exp(-2.0 * (d / gp->size)) / 5.0 * gp->size;
   if (FLOATRAND < 0.5)
    h = -h;
   st->pos[0] = gp->mat[0][0] * d * cosw + gp->mat[1][0] * d * sinw +
gp->mat[2][0] * h + gt->pos[0];
   st->pos[1] = gp->mat[0][1] * d * cosw + gp->mat[1][1] * d * sinw +
gp->mat[2][1] * h + gt->pos[1];
   st->pos[2] = gp->mat[0][2] * d * cosw + gp->mat[1][2] * d * sinw +
gp->mat[2][2] * h + gt->pos[2];

   v = sqrt(gt->mass * QCONS / sqrt(d * d + h * h));
   st->vel[0] = -gp->mat[0][0] * v * sinw + gp->mat[1][0] * v * cosw +
gt->vel[0];
   st->vel[1] = -gp->mat[0][1] * v * sinw + gp->mat[1][1] * v * cosw +
gt->vel[1];
   st->vel[2] = -gp->mat[0][2] * v * sinw + gp->mat[1][2] * v * cosw +
gt->vel[2];

   st->vel[0] *= DELTAT;
   st->vel[1] *= DELTAT;
   st->vel[2] *= DELTAT;

   oldp->x = 0;
   oldp->y = 0;
   newp->x = 0;
   newp->y = 0;
  }

 }

 XClearWindow(MI_DISPLAY(mi), MI_WINDOW(mi));

#if 0
 (void) printf("ngalaxies=%d, f_hititerations=%d\n", gp->ngalaxies,
gp->f_hititerations);
 (void) printf("f_deltat=%g\n", DELTAT);
 (void) printf("Screen: ");
#endif /*0 */
}

示例#4

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文件： galaxy.c 项目： Gelma/xlockmore-for-13.04

static Bool
startover(ModeInfo * mi)
{
	unistruct  *gp = &universes[MI_SCREEN(mi)];
	int         size = (int) MI_SIZE(mi);
	int         i, j;	/* more tmp */
	double      w1, w2;	/* more tmp */
	double      d, v, w, h;	/* yet more tmp */

	gp->step = 0;

	if (MI_COUNT(mi) < -MINGALAXIES)
		free_galaxies(gp);
	gp->ngalaxies = MI_COUNT(mi);
	if (gp->ngalaxies < -MINGALAXIES)
		gp->ngalaxies = NRAND(-gp->ngalaxies - MINGALAXIES + 1) + MINGALAXIES;
	else if (gp->ngalaxies < MINGALAXIES)
		gp->ngalaxies = MINGALAXIES;
	if (gp->galaxies == NULL)
		if ((gp->galaxies = (Galaxy *) calloc(gp->ngalaxies,
				sizeof (Galaxy))) == NULL) {
			free_galaxy(MI_DISPLAY(mi), gp);
			return False;
	}
	for (i = 0; i < gp->ngalaxies; ++i) {
		Galaxy     *gt = &gp->galaxies[i];
		double      sinw1, sinw2, cosw1, cosw2;

		if (MI_NPIXELS(mi) >= COLORS)
			do {
				gt->galcol = NRAND(COLORBASE) * COLORS;
			} while (gt->galcol + COLORBASE / 2 < GREEN + NOTGREEN &&
			      gt->galcol + COLORBASE / 2 > GREEN - NOTGREEN);
		else
			gt->galcol = 0;
		/* Galaxies still may have some green stars but are not all green. */

		if (gt->stars != NULL) {
			free(gt->stars);
			gt->stars = (Star *) NULL;
		}
		gt->nstars = (NRAND(MAX_STARS / 2)) + MAX_STARS / 2;
		if ((gt->stars = (Star *) malloc(gt->nstars *
				sizeof (Star))) == NULL) {
			free_galaxy(MI_DISPLAY(mi), gp);
			return False;
		}
		w1 = 2.0 * M_PI * FLOATRAND;
		w2 = 2.0 * M_PI * FLOATRAND;
		sinw1 = SINF(w1);
		sinw2 = SINF(w2);
		cosw1 = COSF(w1);
		cosw2 = COSF(w2);

		gp->mat[0][0] = cosw2;
		gp->mat[0][1] = -sinw1 * sinw2;
		gp->mat[0][2] = cosw1 * sinw2;
		gp->mat[1][0] = 0.0;
		gp->mat[1][1] = cosw1;
		gp->mat[1][2] = sinw1;
		gp->mat[2][0] = -sinw2;
		gp->mat[2][1] = -sinw1 * cosw2;
		gp->mat[2][2] = cosw1 * cosw2;

		gt->vel[0] = FLOATRAND * 2.0 - 1.0;
		gt->vel[1] = FLOATRAND * 2.0 - 1.0;
		gt->vel[2] = FLOATRAND * 2.0 - 1.0;
		gt->pos[0] = -gt->vel[0] * DELTAT *
			gp->f_hititerations + FLOATRAND - 0.5;
		gt->pos[1] = -gt->vel[1] * DELTAT *
			gp->f_hititerations + FLOATRAND - 0.5;
		gt->pos[2] = (-gt->vel[2] * DELTAT *
			gp->f_hititerations + FLOATRAND - 0.5) + Z_OFFSET;

		gt->mass = (int) (FLOATRAND * 1000.0) + 1;

		gp->size = GALAXYRANGESIZE * FLOATRAND + GALAXYMINSIZE;

		for (j = 0; j < gt->nstars; ++j) {
			Star       *st = &gt->stars[j];
			double      sinw, cosw;

			w = 2.0 * M_PI * FLOATRAND;
			sinw = SINF(w);
			cosw = COSF(w);
			d = FLOATRAND * gp->size;
			h = FLOATRAND * exp(-2.0 * (d / gp->size)) / 5.0 * gp->size;
			if (FLOATRAND < 0.5)
				h = -h;
			st->pos[0] = gp->mat[0][0] * d * cosw + gp->mat[1][0] * d * sinw +
				gp->mat[2][0] * h + gt->pos[0];
			st->pos[1] = gp->mat[0][1] * d * cosw + gp->mat[1][1] * d * sinw +
				gp->mat[2][1] * h + gt->pos[1];
			st->pos[2] = gp->mat[0][2] * d * cosw + gp->mat[1][2] * d * sinw +
				gp->mat[2][2] * h + gt->pos[2];

			v = sqrt(gt->mass * QCONS / sqrt(d * d + h * h));
			st->vel[0] = -gp->mat[0][0] * v * sinw + gp->mat[1][0] * v * cosw +
				gt->vel[0];
			st->vel[1] = -gp->mat[0][1] * v * sinw + gp->mat[1][1] * v * cosw +
				gt->vel[1];
			st->vel[2] = -gp->mat[0][2] * v * sinw + gp->mat[1][2] * v * cosw +
				gt->vel[2];

			st->vel[0] *= DELTAT;
			st->vel[1] *= DELTAT;
			st->vel[2] *= DELTAT;

			st->px = 0;
			st->py = 0;

			if (size < -MINSIZE)
				st->size = NRAND(-size - MINSIZE + 1) + MINSIZE;
			else if (size < MINSIZE)
				st->size = MINSIZE;
			else
				st->size = size;

			st->Z_size = st->size;

		}
	}

	MI_CLEARWINDOW(mi);

#if 0
	(void) printf("ngalaxies=%d, f_hititerations=%d\n",
		      gp->ngalaxies, gp->f_hititerations);
	(void) printf("f_deltat=%g\n", DELTAT);
	(void) printf("Screen: ");
	(void) printf("%dx%d pixel (%d-%d, %d-%d)\n",
	  (gp->clip.right - gp->clip.left), (gp->clip.bottom - gp->clip.top),
	       gp->clip.left, gp->clip.right, gp->clip.top, gp->clip.bottom);
#endif
	return True;
}