From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz
[xscreensaver] / hacks / demon.c
index 917f9a69c4755b753fd302c6e90648d5a52593ca..eb926ca6b150c7403dca4d30932e367ea28a01aa 100644 (file)
@@ -46,7 +46,7 @@ static const char sccsid[] = "@(#)demon.c     5.00 2000/11/01 xlockmore";
   Triangle 3, 9, or 12
 */
 
-#ifndef HAVE_COCOA
+#ifndef HAVE_JWXYZ
 # define DO_STIPPLE
 #endif
 
@@ -55,11 +55,13 @@ static const char sccsid[] = "@(#)demon.c   5.00 2000/11/01 xlockmore";
 # define DEFAULTS      "*delay:   50000 \n" \
                                        "*count:   0     \n" \
                                        "*cycles:  1000  \n" \
-                                       "*size:    -7    \n" \
-                                       "*ncolors: 64    \n"
-# define reshape_demon 0
-# define demon_handle_event 0
+                                       "*size:    -30   \n" \
+                                       "*ncolors: 64    \n" \
+                                       "*fpsSolid: true    \n" \
+                                   "*ignoreRotation: True  \n" \
+
 # define UNIFORM_COLORS
+# define release_demon 0
 # include "xlockmore.h"                /* in xscreensaver distribution */
 #else /* STANDALONE */
 # include "xlock.h"            /* in xlockmore distribution */
@@ -94,7 +96,7 @@ ENTRYPOINT ModeSpecOpt demon_opts =
 
 #ifdef USE_MODULES
 ModStruct   demon_description =
-{"demon", "init_demon", "draw_demon", "release_demon",
+{"demon", "init_demon", "draw_demon", (char *) NULL,
  "refresh_demon", "init_demon", (char *) NULL, &demon_opts,
  50000, 0, 1000, -7, 64, 1.0, "",
  "Shows Griffeath's cellular automata", 0, NULL};
@@ -103,8 +105,8 @@ ModStruct   demon_description =
 
 #define DEMONBITS(n,w,h)\
   if ((dp->pixmaps[dp->init_bits]=\
-  XCreatePixmapFromBitmapData(display,window,(char *)n,w,h,1,0,1))==None){\
-  free_demon(display,dp); return;} else {dp->init_bits++;}
+  XCreatePixmapFromBitmapData(MI_DISPLAY(mi),window,(char *)n,w,h,1,0,1))==None){\
+  free_demon(mi); return;} else {dp->init_bits++;}
 
 #define REDRAWSTEP 2000                /* How many cells to draw per cycle */
 #define MINSTATES 2
@@ -164,7 +166,6 @@ drawcell(ModeInfo * mi, int col, int row, unsigned char state)
                gc = MI_GC(mi);
        } else {
                XGCValues   gcv;
-
 #ifdef DO_STIPPLE
                gcv.stipple = dp->pixmaps[(state - 1) % (NUMSTIPPLES - 1)];
 #endif /* DO_STIPPLE */
@@ -228,25 +229,6 @@ addtolist(ModeInfo * mi, int col, int row, unsigned char state)
        return True;
 }
 
-#ifdef DEBUG
-static void
-print_state(ModeInfo * mi, int state)
-{
-       demonstruct *dp = &demons[MI_SCREEN(mi)];
-       CellList   *locallist;
-       int         i = 0;
-
-       locallist = dp->cellList[state];
-       (void) printf("state %d\n", state);
-       while (locallist) {
-               (void) printf("%d       x %d, y %d\n", i,
-                             locallist->pt.x, locallist->pt.y);
-               locallist = locallist->next;
-               i++;
-       }
-}
-
-#endif
 
 static void
 free_state(demonstruct * dp, int state)
@@ -296,8 +278,10 @@ free_struct(demonstruct * dp)
 }
 
 static void
-free_demon(Display *display, demonstruct *dp)
+free_demon(ModeInfo * mi)
 {
+       Display    *display = MI_DISPLAY(mi);
+       demonstruct *dp = &demons[MI_SCREEN(mi)];
        int         shade;
 
        if (dp->stippledGC != None) {
@@ -428,15 +412,10 @@ RandomSoup(ModeInfo * mi)
 ENTRYPOINT void
 init_demon (ModeInfo * mi)
 {
-       Display    *display = MI_DISPLAY(mi);
        int         size = MI_SIZE(mi), nk;
        demonstruct *dp;
 
-       if (demons == NULL) {
-               if ((demons = (demonstruct *) calloc(MI_NUM_SCREENS(mi),
-                                             sizeof (demonstruct))) == NULL)
-                       return;
-       }
+       MI_INIT (mi, demons, free_demon);
        dp = &demons[MI_SCREEN(mi)];
 
        dp->generation = 0;
@@ -448,9 +427,9 @@ init_demon (ModeInfo * mi)
                        XGCValues   gcv;
 
                        gcv.fill_style = FillOpaqueStippled;
-                       if ((dp->stippledGC = XCreateGC(display, window,
+                       if ((dp->stippledGC = XCreateGC(MI_DISPLAY(mi), window,
                                 GCFillStyle, &gcv)) == None) {
-                               free_demon(display, dp);
+                               free_demon(mi);
                                return;
                        }
                }
@@ -465,6 +444,10 @@ init_demon (ModeInfo * mi)
 #endif /* DO_STIPPLE */
        free_struct(dp);
 
+#ifdef HAVE_JWXYZ
+    jwxyz_XSetAntiAliasing (MI_DISPLAY(mi), MI_GC(mi), False);
+#endif
+
        for (nk = 0; nk < NEIGHBORKINDS; nk++) {
                if (neighbors == plots[0][nk]) {
                        dp->neighbors = plots[0][nk];
@@ -484,11 +467,11 @@ init_demon (ModeInfo * mi)
                dp->states = plots[1][nk];
        if ((dp->cellList = (CellList **) calloc(dp->states,
                sizeof (CellList *))) == NULL) {
-               free_demon(display, dp);
+               free_demon(mi);
                return;
        }
        if ((dp->ncells = (int *) calloc(dp->states, sizeof (int))) == NULL) {
-               free_demon(display, dp);
+               free_demon(mi);
                return;
        }
 
@@ -580,13 +563,13 @@ init_demon (ModeInfo * mi)
 
        if ((dp->oldcell = (unsigned char *)
                malloc(dp->ncols * dp->nrows * sizeof (unsigned char))) == NULL) {
-               free_demon(display, dp);
+               free_demon(mi);
                return;
        }
 
        if ((dp->newcell = (unsigned char *)
                malloc(dp->ncols * dp->nrows * sizeof (unsigned char))) == NULL) {
-               free_demon(display, dp);
+               free_demon(mi);
                return;
        }
 
@@ -693,7 +676,7 @@ draw_demon (ModeInfo * mi)
                                                dp->newcell[i + mj] = dp->oldcell[k + ml];
                                        /* W */
                                        k = (!i) ? dp->ncols - 1 : i - 1;
-                                       l = j;
+                                       /*l = j;*/
                                        ml = mj;
                                        if (dp->oldcell[k + ml] ==
                                            (int) (dp->oldcell[i + mj] + 1) % dp->states)
@@ -863,7 +846,7 @@ draw_demon (ModeInfo * mi)
                                                                        dp->newcell[i + mj] = dp->oldcell[k + ml];
                                                                /* EE */
                                                                k = (i + 1 == dp->ncols) ? 0 : i + 1;
-                                                               l = j;
+                                                               /*l = j;*/
                                                                ml = mj;
                                                                if (dp->oldcell[k + ml] ==
                                                                    (int) (dp->oldcell[i + mj] + 1) % dp->states)
@@ -895,7 +878,7 @@ draw_demon (ModeInfo * mi)
                                                                        dp->newcell[i + mj] = dp->oldcell[k + ml];
                                                                /* WW */
                                                                k = (!i) ? dp->ncols - 1 : i - 1;
-                                                               l = j;
+                                                               /*l = j;*/
                                                                ml = mj;
                                                                if (dp->oldcell[k + ml] ==
                                                                    (int) (dp->oldcell[i + mj] + 1) % dp->states)
@@ -913,7 +896,7 @@ draw_demon (ModeInfo * mi)
                                if (dp->oldcell[i + mj] != dp->newcell[i + mj]) {
                                        dp->oldcell[i + mj] = dp->newcell[i + mj];
                                        if (!addtolist(mi, i, j, dp->oldcell[i + mj])) {
-                                               free_demon(MI_DISPLAY(mi), dp);
+                                               free_demon(mi);
                                                return;
                                        }
                                }
@@ -925,7 +908,7 @@ draw_demon (ModeInfo * mi)
        } else {
                if (dp->ncells[dp->state])
                        if (!draw_state(mi, dp->state)) {
-                               free_demon(MI_DISPLAY(mi), dp);
+                               free_demon(mi);
                                return;
                        }
                dp->state++;
@@ -946,18 +929,13 @@ draw_demon (ModeInfo * mi)
 
 
 ENTRYPOINT void
-release_demon (ModeInfo * mi)
+reshape_demon(ModeInfo * mi, int width, int height)
 {
-       if (demons != NULL) {
-               int         screen;
-
-               for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++)
-                       free_demon(MI_DISPLAY(mi), &demons[screen]);
-               (void) free((void *) demons);
-               demons = (demonstruct *) NULL;
-       }
+  XClearWindow (MI_DISPLAY (mi), MI_WINDOW(mi));
+  init_demon (mi);
 }
 
+
 ENTRYPOINT void
 refresh_demon (ModeInfo * mi)
 {
@@ -971,6 +949,19 @@ refresh_demon (ModeInfo * mi)
        dp->redrawpos = 0;
 }
 
+ENTRYPOINT Bool
+demon_handle_event (ModeInfo *mi, XEvent *event)
+{
+  if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
+    {
+      reshape_demon (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+      return True;
+    }
+  return False;
+}
+
+
+
 XSCREENSAVER_MODULE ("Demon", demon)
 
 #endif /* MODE_demon */