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

[xscreensaver] / hacks / glx / raverhoop.c

diff --git a/hacks/glx/raverhoop.c b/hacks/glx/raverhoop.c
index 99310676120630f47f48afe7177c083bdd22be01..5cf35f7fccf6f0f91eebb4b254ecf3cbf863cfe7 100644 (file)
--- a/hacks/glx/raverhoop.c
+++ b/hacks/glx/raverhoop.c
@@ -16,7 +16,7 @@
                        "*showFPS:      False       \n" \
                        "*wireframe:    False       \n" \
 
-# define refresh_hoop 0
+# define free_hoop 0
 # define release_hoop 0
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
@@ -591,8 +591,15 @@ ENTRYPOINT void
 reshape_hoop (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();
@@ -649,14 +656,7 @@ init_hoop (ModeInfo *mi)
   hoop_configuration *bp;
   int wire = MI_IS_WIREFRAME(mi);
 
-  if (!bps) {
-    bps = (hoop_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (hoop_configuration));
-    if (!bps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
-  }
+  MI_INIT (mi, bps);
 
   bp = &bps[MI_SCREEN(mi)];