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

[xscreensaver] / hacks / glx / kaleidocycle.c

diff --git a/hacks/glx/kaleidocycle.c b/hacks/glx/kaleidocycle.c
index 58bf2861be49bcd71fbfc4861c629a01f6189c83..884400f8c65256554ac7fb0419b59fc3dc25be5d 100644 (file)
--- a/hacks/glx/kaleidocycle.c
+++ b/hacks/glx/kaleidocycle.c
@@ -21,7 +21,7 @@
                        "*wireframe:    False       \n" \
                        "*suppressRotationAnimation: True\n" \
 
-# define refresh_kaleidocycle 0
+# define free_kaleidocycle 0
 # define release_kaleidocycle 0
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
@@ -90,8 +90,15 @@ ENTRYPOINT void
 reshape_kaleidocycle (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();
@@ -167,14 +174,7 @@ init_kaleidocycle (ModeInfo *mi)
   int wire = MI_IS_WIREFRAME(mi);
   int i;
 
-  if (!bps) {
-    bps = (kaleidocycle_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (kaleidocycle_configuration));
-    if (!bps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
-  }
+  MI_INIT (mi, bps);
 
   bp = &bps[MI_SCREEN(mi)];