From http://www.jwz.org/xscreensaver/xscreensaver-5.38.tar.gz

[xscreensaver] / hacks / glx / cubestorm.c

diff --git a/hacks/glx/cubestorm.c b/hacks/glx/cubestorm.c
index 1eb3073aa70847d94ccffd161d99e293c96cbe37..4ef7fd1b4c5eb24671be4857ab044eb8377c049f 100644 (file)
--- a/hacks/glx/cubestorm.c
+++ b/hacks/glx/cubestorm.c
@@ -1,4 +1,4 @@
-/* cubestorm, Copyright (c) 2003-2008 Jamie Zawinski <jwz@jwz.org>
+/* cubestorm, Copyright (c) 2003-2014 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
@@ -14,9 +14,10 @@
                        "*showFPS:      False       \n" \
                        "*fpsSolid:     True        \n" \
                        "*wireframe:    False       \n" \
+                       "*suppressRotationAnimation: True\n" \
 
 
-# define refresh_cube 0
+# define free_cube 0
 # define release_cube 0
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
@@ -161,8 +162,15 @@ ENTRYPOINT void
 reshape_cube (ModeInfo *mi, int width, int height)
 {
   GLfloat h = (GLfloat) height / (GLfloat) width;
+  int y = 0;
 
-  glViewport (0, 0, (GLint) width, (GLint) height);
+  if (width > height * 5) {   /* tiny window: show middle */
+    height = width * 9/16;
+    y = -height/2;
+    h = height / (GLfloat) width;
+  }
+
+  glViewport (0, y, (GLint) width, (GLint) height);
 
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
@@ -174,6 +182,14 @@ reshape_cube (ModeInfo *mi, int width, int height)
              0.0, 0.0, 0.0,
              0.0, 1.0, 0.0);
 
+# ifdef HAVE_MOBILE    /* Keep it the same relative size when rotated. */
+  {
+    int o = (int) current_device_rotation();
+    if (o != 0 && o != 180 && o != -180)
+      glScalef (1/h, 1/h, 1/h);
+  }
+# endif
+
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 }
 
@@ -183,39 +199,10 @@ cube_handle_event (ModeInfo *mi, XEvent *event)
 {
   cube_configuration *bp = &bps[MI_SCREEN(mi)];
 
-  if (event->xany.type == ButtonPress &&
-      event->xbutton.button == Button1)
-    {
-      bp->button_down_p = True;
-      gltrackball_start (bp->trackball,
-                         event->xbutton.x, event->xbutton.y,
-                         MI_WIDTH (mi), MI_HEIGHT (mi));
-      return True;
-    }
-  else if (event->xany.type == ButtonRelease &&
-           event->xbutton.button == Button1)
-    {
-      bp->button_down_p = False;
-      return True;
-    }
-  else if (event->xany.type == ButtonPress &&
-           (event->xbutton.button == Button4 ||
-            event->xbutton.button == Button5 ||
-            event->xbutton.button == Button6 ||
-            event->xbutton.button == Button7))
-    {
-      gltrackball_mousewheel (bp->trackball, event->xbutton.button, 10,
-                              !!event->xbutton.state);
-      return True;
-    }
-  else if (event->xany.type == MotionNotify &&
-           bp->button_down_p)
-    {
-      gltrackball_track (bp->trackball,
-                         event->xmotion.x, event->xmotion.y,
-                         MI_WIDTH (mi), MI_HEIGHT (mi));
-      return True;
-    }
+  if (gltrackball_event_handler (event, bp->trackball,
+                                 MI_WIDTH (mi), MI_HEIGHT (mi),
+                                 &bp->button_down_p))
+    return True;
   else if (event->xany.type == KeyPress)
     {
       KeySym keysym;
@@ -226,11 +213,14 @@ cube_handle_event (ModeInfo *mi, XEvent *event)
           glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
           return True;
         }
-      else if (c == '\r' || c == '\n')
-        {
-          new_cube_colors (mi);
-          return True;
-        }
+      else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
+        goto DEF;
+    }
+  else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
+    {
+    DEF:
+      new_cube_colors (mi);
+      return True;
     }
   return False;
 }
@@ -243,16 +233,11 @@ init_cube (ModeInfo *mi)
   int wire = MI_IS_WIREFRAME(mi);
   int i;
 
-  if (!bps) {
-    bps = (cube_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (cube_configuration));
-    if (!bps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
+  MI_INIT (mi, bps);
 
-    bp = &bps[MI_SCREEN(mi)];
-  }
+# ifdef HAVE_JWZGLES
+  dbuf_p = True;
+# endif
 
   bp = &bps[MI_SCREEN(mi)];
 
@@ -260,7 +245,7 @@ init_cube (ModeInfo *mi)
 
   if (MI_COUNT(mi) <= 0) MI_COUNT(mi) = 1;
 
-  bp->trackball = gltrackball_init ();
+  bp->trackball = gltrackball_init (True);
   bp->subcubes = (subcube *) calloc (MI_COUNT(mi), sizeof(subcube));
   for (i = 0; i < MI_COUNT(mi); i++)
     {
@@ -315,7 +300,6 @@ init_cube (ModeInfo *mi)
   draw_faces (mi);
   glEndList ();
 
-  glDrawBuffer(dbuf_p ? GL_BACK : GL_FRONT);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 }
 
@@ -333,6 +317,8 @@ draw_cube (ModeInfo *mi)
   if (!bp->glx_context)
     return;
 
+  glDrawBuffer(dbuf_p ? GL_BACK : GL_FRONT);
+
   glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
 
   glShadeModel(GL_SMOOTH);