From http://www.jwz.org/xscreensaver/xscreensaver-5.35.tar.gz

[xscreensaver] / hacks / m6502.c

diff --git a/hacks/m6502.c b/hacks/m6502.c
index 8361fbd0dca03d0093379ab6369a791126875112..4f90a6a10acf8b1f396556c372c6e3e4cd2ac005 100644 (file)
--- a/hacks/m6502.c
+++ b/hacks/m6502.c
@@ -12,7 +12,7 @@
  * Created: 07-May-2007 
  */
 
-#include <stdint.h> 
+#include <inttypes.h>
 #include <string.h>
 #include "screenhack.h"
 #include "analogtv.h"
@@ -23,11 +23,16 @@
                     ISO C89 compilers are required to support" when includng
                     the following data file... */
 # endif
-const char * const demo_files[] = {
+static const char * const demo_files[] = {
 # include "m6502.h"
 };
 
 
+#ifndef HAVE_MOBILE
+# define READ_FILES
+#endif
+
+
 /* We want to paint on a 32 by 32 grid of pixels. We will needed to
    divided the screen up into chuncks */
 enum {
@@ -55,6 +60,7 @@ struct state {
   int which;/* the program to run*/
   int demos;/* number of demos included */
   struct timeval start_time; 
+  int reset_p;
 };
 
 static void
@@ -74,7 +80,7 @@ start_rand_bin_prog(machine_6502 *machine, struct state *st){
   while(n == st->which)
     n = random() % st->demos;
   st->which = n;
-  start_eval_string(machine, demo_files[st->which], plot6502, st);
+  m6502_start_eval_string(machine, demo_files[st->which], plot6502, st);
 }
 
 \f
@@ -114,7 +120,6 @@ m6502_init (Display *dpy, Window window)
 {
   struct state *st = (struct state *) calloc (1, sizeof(*st));
   unsigned int x, y;
-  char *s = get_string_resource (dpy, "file", "File");
   int n = get_integer_resource(dpy, "displaytime", "Displaytime");
   int dh;
   st->demos = countof(demo_files);
@@ -125,7 +130,7 @@ m6502_init (Display *dpy, Window window)
   st->tv=analogtv_allocate(st->dpy, st->window);
   analogtv_set_defaults(st->tv, "");
   
-  st->machine = build6502();
+  st->machine = m6502_build();
   st->inp=analogtv_input_allocate();
   analogtv_setup_sync(st->inp, 1, 0);
   
@@ -141,10 +146,15 @@ m6502_init (Display *dpy, Window window)
 
   init_time(st);
   
-  if (strlen(s) > 0)
-    start_eval_file(st->machine,s, plot6502, st);
+  {
+#ifdef READ_FILES
+    char *s = get_string_resource (dpy, "file", "File");
+    if (strlen(s) > 0)
+      m6502_start_eval_file(st->machine,s, plot6502, st);
   else
+#endif
     start_rand_bin_prog(st->machine,st);
+  }
 
   analogtv_lcp_to_ntsc(ANALOGTV_BLACK_LEVEL, 0.0, 0.0, st->field_ntsc);
 
@@ -213,20 +223,20 @@ m6502_draw (Display *dpy, Window window, void *closure)
   struct state *st = (struct state *) closure;
   unsigned int x = 0, y = 0;
   double te;
+  const analogtv_reception *reception = &st->reception;
 
-  next_eval(st->machine,500);
+  m6502_next_eval(st->machine,500);
 
   for (x = 0; x < 32; x++)
     for (y = 0; y < 32; y++)
       paint_pixel(st,x,y,st->pixels[x][y]);
   
-  analogtv_init_signal(st->tv, 0.04);
   analogtv_reception_update(&st->reception);
-  analogtv_add_signal(st->tv, &st->reception);
-  analogtv_draw(st->tv);
+  analogtv_draw(st->tv, 0.04, &reception, 1);
   te = get_time(st);
   
-  if (te > st->dt){ /* do something more interesting here XXX */
+  if (st->reset_p || te > st->dt){ /* do something more interesting here XXX */
+    st->reset_p = 0;
     for(x = 0; x < 32; x++)
       for(y = 0; y < 32; y++)
        st->pixels[x][y] = 0;
@@ -234,7 +244,11 @@ m6502_draw (Display *dpy, Window window, void *closure)
     start_rand_bin_prog(st->machine,st);
   }
 
-  return 10000;
+#ifdef HAVE_MOBILE
+  return 0;
+#else
+  return 5000;
+#endif
 }
 
 
@@ -267,6 +281,12 @@ m6502_reshape (Display *dpy, Window window, void *closure,
 static Bool
 m6502_event (Display *dpy, Window window, void *closure, XEvent *event)
 {
+  struct state *st = (struct state *) closure;
+  if (screenhack_event_helper (dpy, window, event))
+    {
+      st->reset_p = 1;
+      return True;
+    }
   return False;
 }