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

[xscreensaver] / hacks / glx / geodesicgears.c

diff --git a/hacks/glx/geodesicgears.c b/hacks/glx/geodesicgears.c
index 83127c42178f072511e645d9a4aec2148f01ad02..47acee88fa4606febcabd52031f955a43dc5f989 100644 (file)
--- a/hacks/glx/geodesicgears.c
+++ b/hacks/glx/geodesicgears.c
@@ -1,4 +1,4 @@
-/* geodesicgears, Copyright (c) 2014 Jamie Zawinski <jwz@jwz.org>
+/* geodesicgears, Copyright (c) 2014-2015 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
@@ -17,9 +17,11 @@
                        "*wireframe:    False       \n" \
                        "*showFPS:      False       \n" \
                        "*texFontCacheSize: 100     \n" \
+                       "*suppressRotationAnimation: True\n" \
                "*font:  -*-helvetica-medium-r-normal-*-*-160-*-*-*-*-*-*\n" \
 
 # define refresh_geodesic 0
+# define release_geodesic 0
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
 
@@ -1314,8 +1316,11 @@ make_182 (ModeInfo *mi, const GLfloat *args)
 ENTRYPOINT void
 reshape_geodesic (ModeInfo *mi, int width, int height)
 {
+  geodesic_configuration *bp = &bps[MI_SCREEN(mi)];
   GLfloat h = (GLfloat) height / (GLfloat) width;
 
+  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
+
   glViewport (0, 0, (GLint) width, (GLint) height);
 
   glMatrixMode(GL_PROJECTION);
@@ -1328,6 +1333,14 @@ reshape_geodesic (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);
 }
 
@@ -1389,6 +1402,7 @@ pick_shape (ModeInfo *mi, time_t last)
 }
 
 
+static void free_geodesic (ModeInfo *mi);
 
 ENTRYPOINT void 
 init_geodesic (ModeInfo *mi)
@@ -1396,14 +1410,7 @@ init_geodesic (ModeInfo *mi)
   geodesic_configuration *bp;
   int wire = MI_IS_WIREFRAME(mi);
 
-  if (!bps) {
-    bps = (geodesic_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (geodesic_configuration));
-    if (!bps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
-  }
+  MI_INIT (mi, bps, free_geodesic);
 
   bp = &bps[MI_SCREEN(mi)];
 
@@ -1700,6 +1707,7 @@ draw_geodesic (ModeInfo *mi)
 
           int w, h, j;
           char buf[100];
+          XCharStruct e;
 
           /* If an even number of teeth, offset by 1/2 tooth width. */
           if (s->direction > 0 /* && !(g->nteeth & 1) */)
@@ -1721,8 +1729,10 @@ draw_geodesic (ModeInfo *mi)
           glPushMatrix();
           glScalef(0.005, 0.005, 0.005);
           sprintf (buf, "%d", i);
-          w = texture_string_width (bp->font, buf, &h);
-          glTranslatef (-w/2, -h*2/3, 0);
+          texture_string_metrics (bp->font, buf, &e, 0, 0);
+          w = e.width;
+          h = e.ascent + e.descent;
+          glTranslatef (-w/2, -h/2, 0);
           print_texture_string (bp->font, buf);
           glPopMatrix();
 
@@ -1738,8 +1748,10 @@ draw_geodesic (ModeInfo *mi)
               glTranslatef (r * cos(th), r * sin(th), -g->z + 0.01);
               glScalef(ss, ss, ss);
               sprintf (buf, "%d", j + 1);
-              w = texture_string_width (bp->font, buf, &h);
-              glTranslatef (-w/2, -h*2/3, 0);
+              texture_string_metrics (bp->font, buf, &e, 0, 0);
+              w = e.width;
+              h = e.ascent + e.descent;
+              glTranslatef (-w/2, -h/2, 0);
               print_texture_string (bp->font, buf);
               glPopMatrix();
             }
@@ -1767,10 +1779,13 @@ draw_geodesic (ModeInfo *mi)
   glXSwapBuffers(dpy, window);
 }
 
-ENTRYPOINT void
-release_geodesic (ModeInfo *mi)
+static void
+free_geodesic (ModeInfo *mi)
 {
   geodesic_configuration *bp = &bps[MI_SCREEN(mi)];
+  if (!bp->glx_context)
+    return;
+  glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
   free_texture_font (bp->font);
   free (bp->colors);
   free_sphere_gears (mi);