From http://www.jwz.org/xscreensaver/xscreensaver-5.37.tar.gz

[xscreensaver] / hacks / glx / antmaze.c

diff --git a/hacks/glx/antmaze.c b/hacks/glx/antmaze.c
index 0f18e15fe8dc9f49843dccb276e2fb05012f5c98..229257b9576fc7680ab606e862ce8eabf6d8fa01 100644 (file)
--- a/hacks/glx/antmaze.c
+++ b/hacks/glx/antmaze.c
@@ -26,12 +26,13 @@ static const char sccsid[] = "@(#)antmaze.c 5.01 2001/03/01 xlockmore";
                        "*fpsSolid:     True    \n"
 
 # define refresh_antmaze 0
+# define release_antmaze 0
 # include "xlockmore.h"                /* from the xscreensaver distribution */
 #else /* !STANDALONE */
 # include "xlock.h"            /* from the xlockmore distribution */
 #endif /* !STANDALONE */
 
-#ifdef HAVE_COCOA
+#ifdef HAVE_JWXYZ
 # include "jwxyz.h"
 #else
 # include <X11/Xlib.h>
@@ -81,7 +82,7 @@ ENTRYPOINT ModeSpecOpt antmaze_opts =
 
 #ifdef USE_MODULES
 ModStruct   antmaze_description =
-{"antmaze", "init_antmaze", "draw_antmaze", "release_antmaze",
+{"antmaze", "init_antmaze", "draw_antmaze", NULL,
  "draw_antmaze", "change_antmaze", NULL, &antmaze_opts,
  1000, 1, 1, 1, 4, 1.0, "",
  "draws some ants", 0, NULL};
@@ -1287,15 +1288,6 @@ static void pinit(antmazestruct *mp)
 /*   glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular); */
 }
 
-ENTRYPOINT void release_antmaze(ModeInfo * mi) 
-{
-  if(antmaze) {
-       free((void *) antmaze);
-       antmaze = (antmazestruct *) NULL;
-  }
-  FreeAllGL(mi);
-}
-
 #define MAX_MAGNIFICATION 10
 #define max(a, b) a < b ? b : a
 #define min(a, b) a < b ? a : b
@@ -1304,55 +1296,30 @@ ENTRYPOINT Bool antmaze_handle_event (ModeInfo *mi, XEvent *event)
 {
   antmazestruct *mp = &antmaze[MI_SCREEN(mi)];
 
-  switch(event->xany.type) {
-  case ButtonPress:
-
-    switch(event->xbutton.button) {
+  if (gltrackball_event_handler (event, mp->trackball,
+                                 MI_WIDTH (mi), MI_HEIGHT (mi),
+                                 &mp->button_down_p))
+    return True;
 
-    case Button1:
-      mp->button_down_p = True;
-      gltrackball_start(mp->trackball, 
-                       event->xbutton.x, event->xbutton.y,
-                       MI_WIDTH (mi), MI_HEIGHT (mi));
-      break;
+  if (event->xany.type == ButtonPress)
+    {
+      switch(event->xbutton.button) {
 
-    case Button3:
-      mp->focus = (mp->focus + 1) % ANTCOUNT;
-      break;
+      case Button3:
+        mp->focus = (mp->focus + 1) % ANTCOUNT;
+        return True;
       
-    case Button4:
-      mp->mag = max(mp->mag-1, 1);
-      break;
-
-    case Button5:
-      mp->mag = min(mp->mag+1, MAX_MAGNIFICATION);
-      break;
-    }
-
-    break;
-    
-  case ButtonRelease:
+      case Button4:
+        mp->mag = max(mp->mag-1, 1);
+        return True;
 
-    switch(event->xbutton.button) {
-    case Button1:
-      mp->button_down_p = False;
-      break;
+      case Button5:
+        mp->mag = min(mp->mag+1, MAX_MAGNIFICATION);
+        return True;
+      }
     }
 
-    break;
-
-  case MotionNotify:
-    if(mp->button_down_p)
-      gltrackball_track(mp->trackball,
-                       event->xmotion.x, event->xmotion.y,
-                       MI_WIDTH (mi), MI_HEIGHT (mi));
-    break;
-    
-  default:
-    return False;
-  }
-
-  return True;
+  return False;
 }
 
 ENTRYPOINT void init_antmaze(ModeInfo * mi) 
@@ -1362,11 +1329,7 @@ ENTRYPOINT void init_antmaze(ModeInfo * mi)
 
   antmazestruct *mp;
   
-  if (antmaze == NULL) {
-       if ((antmaze = (antmazestruct *) calloc(MI_NUM_SCREENS(mi),
-                                               sizeof (antmazestruct))) == NULL)
-         return;
-  }
+  MI_INIT(mi, antmaze, NULL);
   mp = &antmaze[MI_SCREEN(mi)];
   mp->step = NRAND(90);
   mp->ant_position = NRAND(90);
@@ -1433,7 +1396,7 @@ ENTRYPOINT void init_antmaze(ModeInfo * mi)
   mp->mag = 4.0;
 
   mp->rot = make_rotator (rot_speed, rot_speed, rot_speed, 1, 0, True);
-  mp->trackball = gltrackball_init ();
+  mp->trackball = gltrackball_init (False);
   
   if ((mp->glx_context = init_GL(mi)) != NULL) {
     reshape_antmaze(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
@@ -1447,6 +1410,7 @@ ENTRYPOINT void init_antmaze(ModeInfo * mi)
 static void
 device_rotate(ModeInfo *mi)
 {
+#if 0
   GLfloat rot = current_device_rotation();
   glRotatef(rot, 0, 0, 1);
   if ((rot >  45 && rot <  135) ||
@@ -1455,6 +1419,7 @@ device_rotate(ModeInfo *mi)
       GLfloat s = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
       glScalef (1/s, s, 1);
     }
+#endif
 }
 
 
@@ -1515,7 +1480,7 @@ ENTRYPOINT void draw_antmaze(ModeInfo * mi)
 
   /* sync */
   if(!draw_antmaze_strip(mi)) {
-    release_antmaze(mi);
+    MI_ABORT(mi);
     return;
   }
 
@@ -1541,7 +1506,7 @@ ENTRYPOINT void draw_antmaze(ModeInfo * mi)
 
   /* sync */
   if(!draw_antmaze_strip(mi)) {
-    release_antmaze(mi);
+    MI_ABORT(mi);
     return;
   }