http://svn.poeml.de/viewvc/ppc/src-unpacked/xscreensaver/xscreensaver-4.12.tar.bz2...

[xscreensaver] / hacks / greynetic.c

diff --git a/hacks/greynetic.c b/hacks/greynetic.c
index 79e89c69f2c57354ab606be09fa6f90d13fccdc1..0f0747d17035ea1975115d1f25fb2c317968ee55 100644 (file)
--- a/hacks/greynetic.c
+++ b/hacks/greynetic.c
@@ -1,4 +1,5 @@
-/* xscreensaver, Copyright (c) 1992 Jamie Zawinski <jwz@lucid.com>
+/* xscreensaver, Copyright (c) 1992, 1995, 1996, 1997, 1998, 2003
+ *  Jamie Zawinski <jwz@jwz.org>
  *
  * Permission to use, copy, modify, distribute, and sell this software and its
  * documentation for any purpose is hereby granted without fee, provided that
@@ -13,18 +14,76 @@
 
 #define NBITS 12
 
-#include <X11/bitmaps/stipple>
-#include <X11/bitmaps/cross_weave>
-#include <X11/bitmaps/dimple1>
-#include <X11/bitmaps/dimple3>
-#include <X11/bitmaps/flipped_gray>
-#include <X11/bitmaps/gray1>
-#include <X11/bitmaps/gray3>
-#include <X11/bitmaps/hlines2>
-#include <X11/bitmaps/light_gray>
-#include <X11/bitmaps/root_weave>
-#include <X11/bitmaps/vlines2>
-#include <X11/bitmaps/vlines3>
+/* On some systems (notably MacOS X) these files are messed up.
+ * They're tiny, so we might as well just inline them here.
+ *
+ * # include <X11/bitmaps/stipple>
+ * # include <X11/bitmaps/cross_weave>
+ * # include <X11/bitmaps/dimple1>
+ * # include <X11/bitmaps/dimple3>
+ * # include <X11/bitmaps/flipped_gray>
+ * # include <X11/bitmaps/gray1>
+ * # include <X11/bitmaps/gray3>
+ * # include <X11/bitmaps/hlines2>
+ * # include <X11/bitmaps/light_gray>
+ * # include <X11/bitmaps/root_weave>
+ * # include <X11/bitmaps/vlines2>
+ * # include <X11/bitmaps/vlines3>
+*/
+
+#define stipple_width  16
+#define stipple_height 4
+static unsigned char stipple_bits[] = {
+  0x55, 0x55, 0xee, 0xee, 0x55, 0x55, 0xba, 0xbb};
+
+#define cross_weave_width  16
+#define cross_weave_height 16
+static unsigned char cross_weave_bits[] = {
+   0x55, 0x55, 0x88, 0x88, 0x55, 0x55, 0x22, 0x22, 0x55, 0x55, 0x88, 0x88,
+   0x55, 0x55, 0x22, 0x22, 0x55, 0x55, 0x88, 0x88, 0x55, 0x55, 0x22, 0x22,
+   0x55, 0x55, 0x88, 0x88, 0x55, 0x55, 0x22, 0x22};
+
+#define dimple1_width 16
+#define dimple1_height 16
+static unsigned char dimple1_bits[] = {
+   0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x00, 0x00,
+   0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x00, 0x00,
+   0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x00, 0x00};
+
+#define dimple3_width 16
+#define dimple3_height 16
+static unsigned char dimple3_bits[] = {
+   0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x00, 0x00,
+   0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+   0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+#define flipped_gray_width  4
+#define flipped_gray_height 2
+static char flipped_gray_bits[] = { 0x07, 0x0d};
+#define gray1_width  2
+#define gray1_height 2
+static char gray1_bits[] = { 0x01, 0x02};
+#define gray3_width  4
+#define gray3_height 4
+static char gray3_bits[] = { 0x01, 0x00, 0x04, 0x00};
+#define hlines2_width  1
+#define hlines2_height 2
+static char hlines2_bits[] = { 0x01, 0x00};
+#define light_gray_width  4
+#define light_gray_height 2
+static char light_gray_bits[] = { 0x08, 0x02};
+#define root_weave_width  4
+#define root_weave_height 4
+static char root_weave_bits[] = { 0x07, 0x0d, 0x0b, 0x0e};
+#define vlines2_width  2
+#define vlines2_height 1
+static char vlines2_bits[] = { 0x01};
+#define vlines3_width  3
+#define vlines3_height 1
+static char vlines3_bits[] = { 0x02};
+
+
+
 
 static Pixmap pixmaps [NBITS];
 static GC gc;
@@ -33,9 +92,7 @@ static unsigned long fg, bg, pixels [512];
 static int npixels;
 
 static void
-init_greynetic (dpy, window)
-     Display *dpy;
-     Window window;
+init_greynetic (Display *dpy, Window window)
 {
   int i;
   XGCValues gcv;
@@ -54,7 +111,8 @@ init_greynetic (dpy, window)
 
   i = 0;
 #define BITS(n,w,h) \
-  pixmaps [i++] = XCreatePixmapFromBitmapData (dpy, window, n, w, h, 1, 0, 1)
+  pixmaps [i++] = \
+    XCreatePixmapFromBitmapData (dpy, window, (char *) n, w, h, 1, 0, 1)
 
   BITS (stipple_bits, stipple_width, stipple_height);
   BITS (cross_weave_bits, cross_weave_width, cross_weave_height);
@@ -71,13 +129,11 @@ init_greynetic (dpy, window)
 }
 
 static void
-greynetic (dpy, window)
-     Display *dpy;
-     Window window;
+greynetic (Display *dpy, Window window)
 {
   static int tick = 500, xlim, ylim;
   static Colormap cmap;
-  int x, y, w, h, i;
+  int x, y, w=0, h=0, i;
   XGCValues gcv;
   if (tick++ == 500)
     {
@@ -100,7 +156,8 @@ greynetic (dpy, window)
   gcv.stipple = pixmaps [random () % NBITS];
   if (mono_p)
     {
-      if (random () % 1)
+    MONO:
+      if (random () & 1)
        gcv.foreground = fg, gcv.background = bg;
       else
        gcv.foreground = bg, gcv.background = fg;
@@ -127,6 +184,11 @@ greynetic (dpy, window)
       gcv.background = bgc.pixel;
       goto DONE;
     REUSE:
+      if (npixels <= 0)
+       {
+         mono_p = 1;
+         goto MONO;
+       }
       gcv.foreground = pixels [random () % npixels];
       gcv.background = pixels [random () % npixels];
     DONE:
@@ -134,33 +196,32 @@ greynetic (dpy, window)
     }
   XChangeGC (dpy, gc, GCStipple|GCForeground|GCBackground, &gcv);
   XFillRectangle (dpy, window, gc, x, y, w, h);
-  XSync (dpy, True);
+  XSync (dpy, False);
 }
 
 \f
 char *progclass = "Greynetic";
 
 char *defaults [] = {
-  "*background:        black",
-  "*foreground:        white",
-  "*delay:     0",
+  ".background:        black",
+  ".foreground:        white",
+  "*delay:     10000",
   0
 };
 
 XrmOptionDescRec options [] = {
-  { "-delay",          ".delay",       XrmoptionSepArg, 0 }
+  { "-delay",          ".delay",       XrmoptionSepArg, 0 },
+  { 0, 0, 0, 0 }
 };
-int options_size = (sizeof (options) / sizeof (options[0]));
 
 void
-screenhack (dpy, window)
-     Display *dpy;
-     Window window;
+screenhack (Display *dpy, Window window)
 {
   init_greynetic (dpy, window);
   while (1)
     {
       greynetic (dpy, window);
+      screenhack_handle_events (dpy);
       if (delay) usleep (delay);
     }
 }