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

[xscreensaver] / hacks / glx / antspotlight.c

diff --git a/hacks/glx/antspotlight.c b/hacks/glx/antspotlight.c
index 2598f5cf3bca36d5674e59f35e5ad2fc97f92051..6b3897a360a4717ad374f0b17882f4b170e6dd92 100644 (file)
--- a/hacks/glx/antspotlight.c
+++ b/hacks/glx/antspotlight.c
@@ -20,11 +20,26 @@
                             "*useSHM:  True    \n"
 
 # define refresh_antspotlight 0
+# define release_antspotlight 0
 #include "xlockmore.h"
 #else
 #include "xlock.h"
 #endif
 
+#ifdef HAVE_JWXYZ
+# include "jwxyz.h"
+#else
+# include <X11/Xlib.h>
+# include <GL/gl.h>
+# include <GL/glu.h>
+#endif
+
+#ifdef HAVE_JWZGLES
+# include "jwzgles.h"
+#endif /* HAVE_JWZGLES */
+
+#include "sphere.h"
+#include "tube.h"
 #include "rotator.h"
 #include "gltrackball.h"
 
@@ -35,7 +50,7 @@ ENTRYPOINT ModeSpecOpt antspotlight_opts = {
 #ifdef USE_MODULES
 ModStruct   antspotlight_description = {
   "antspotlight", "init_antspotlight", "draw_antspotlight", 
-  "release_antspotlight", "draw_antspotlight", "change_antspotlight", 
+  (char *) NULL, "draw_antspotlight", "change_antspotlight",
   (char *) NULL, &antspotlight_opts, 1000, 1, 1, 1, 4, 1.0, "",
   "draws an ant scoping the screen", 0, NULL
 };
@@ -243,6 +258,7 @@ static Bool draw_ant(ModeInfo *mi, antspotlightstruct *mp,
 /* filled sphere */
 static Bool mySphere(float radius)
 {
+#if 0
   GLUquadricObj *quadObj;
   
   if((quadObj = gluNewQuadric()) == 0)
@@ -251,13 +267,20 @@ static Bool mySphere(float radius)
   gluQuadricDrawStyle(quadObj, (GLenum) GLU_FILL);
   gluSphere(quadObj, radius, 16, 16);
   gluDeleteQuadric(quadObj);
-
+#else
+    glPushMatrix();
+    glScalef (radius, radius, radius);
+    glRotatef (90, 1, 0, 0);
+    unit_sphere (16, 16, False);
+    glPopMatrix();
+#endif
   return True;
 }
 
 /* silhouette sphere */
 static Bool mySphere2(float radius)
 {
+#if 0
   GLUquadricObj *quadObj;
 
   if((quadObj = gluNewQuadric()) == 0)
@@ -265,7 +288,14 @@ static Bool mySphere2(float radius)
   gluQuadricDrawStyle(quadObj, (GLenum) GLU_LINE);
   gluSphere(quadObj, radius, 16, 8);
   gluDeleteQuadric(quadObj);
-
+#else
+  /* #### no GLU_LINE */
+    glPushMatrix();
+    glScalef (radius, radius, radius);
+    glRotatef (90, 1, 0, 0);
+    unit_sphere (16, 16, True);
+    glPopMatrix();
+#endif
   return True;
 }
 
@@ -550,8 +580,7 @@ static const GLfloat spotlight_diffuse[] = { 1.0, 1.0, 1.0, 1.0 };
 static void pinit(void)
 {
   glClearDepth(1.0);
-  glClearColor(0.0, 0.0, 0.0, 1.0);
-  
+
   /* setup twoside lighting */
   glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
   glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
@@ -589,18 +618,6 @@ static void pinit(void)
   glEnable(GL_DEPTH_TEST);
 }
 
-/* cleanup routine */
-ENTRYPOINT void release_antspotlight(ModeInfo * mi)
-{
-
-  if(antspotlight) {
-    free((void *) antspotlight);
-    antspotlight = (antspotlightstruct *) NULL;
-  }
-
-  FreeAllGL(mi);
-}
-
 #define MAX_MAGNIFICATION 10
 #define max(a, b) a < b ? b : a
 #define min(a, b) a < b ? a : b
@@ -610,51 +627,33 @@ ENTRYPOINT Bool antspotlight_handle_event(ModeInfo *mi, XEvent *event)
 {
   antspotlightstruct *mp = &antspotlight[MI_SCREEN(mi)];
 
-  switch(event->xany.type) {
-  case ButtonPress:
-
-    switch(event->xbutton.button) {
-
-    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 (gltrackball_event_handler (event, mp->trackball,
+                                 MI_WIDTH (mi), MI_HEIGHT (mi),
+                                 &mp->button_down_p))
+    return True;
+
+  if (event->xany.type == ButtonPress)
+    {
+      switch(event->xbutton.button) {
+
+      case Button1:
+        mp->button_down_p = True;
+        gltrackball_start(mp->trackball, 
+                          event->xbutton.x, event->xbutton.y,
+                          MI_WIDTH (mi), MI_HEIGHT (mi));
+        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:
-
-    switch(event->xbutton.button) {
-    case Button1:
-      mp->button_down_p = False;
-      break;
+      case Button4:
+        mp->mag = max(mp->mag-1, 1);
+        return True;
+
+      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;
 }
 
 static void
@@ -698,14 +697,10 @@ ENTRYPOINT void init_antspotlight(ModeInfo *mi)
 
   antspotlightstruct *mp;
   
-  if(!antspotlight) {
-    if((antspotlight = (antspotlightstruct *) 
-       calloc(MI_NUM_SCREENS(mi), sizeof (antspotlightstruct))) == NULL)
-      return;
-  }
+  MI_INIT(mi, antspotlight, NULL);
   mp = &antspotlight[MI_SCREEN(mi)];
   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_antspotlight(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
@@ -752,6 +747,7 @@ ENTRYPOINT void draw_antspotlight(ModeInfo * mi)
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   
   glPushMatrix();
+  glRotatef(current_device_rotation(), 0, 0, 1);
 
   /* position camera */