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

[xscreensaver] / hacks / glx / pinion.c

diff --git a/hacks/glx/pinion.c b/hacks/glx/pinion.c
index 389786de62f50990c2c032d4c9fd7a6a82d56797..f6793eb446b01366bc2802965983707c7b9f6601 100644 (file)
--- a/hacks/glx/pinion.c
+++ b/hacks/glx/pinion.c
@@ -16,7 +16,7 @@
            "*titleFont2: -*-helvetica-medium-r-normal-*-*-120-*-*-*-*-*-*\n" \
            "*titleFont3: -*-helvetica-medium-r-normal-*-*-80-*-*-*-*-*-*\n"  \
 
-# define refresh_pinion 0
+# define free_pinion 0
 # define release_pinion 0
 #undef countof
 #define countof(x) (sizeof((x))/sizeof((*x)))
@@ -1246,10 +1246,17 @@ find_mouse_gear (ModeInfo *mi)
 ENTRYPOINT void
 reshape_pinion (ModeInfo *mi, int width, int height)
 {
-  GLfloat h = (GLfloat) height / (GLfloat) width;
   pinion_configuration *pp = &pps[MI_SCREEN(mi)];
+  GLfloat h = (GLfloat) height / (GLfloat) width;
+  int y = 0;
+
+  if (width > height * 5) {   /* tiny window: show middle */
+    height = width * 9/16;
+    y = -height/2;
+    h = height / (GLfloat) width;
+  }
 
-  glViewport (0, 0, (GLint) width, (GLint) height);
+  glViewport (0, y, (GLint) width, (GLint) height);
 
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
@@ -1315,14 +1322,7 @@ init_pinion (ModeInfo *mi)
 {
   pinion_configuration *pp;
 
-  if (!pps) {
-    pps = (pinion_configuration *)
-      calloc (MI_NUM_SCREENS(mi), sizeof (pinion_configuration));
-    if (!pps) {
-      fprintf(stderr, "%s: out of memory\n", progname);
-      exit(1);
-    }
-  }
+  MI_INIT (mi, pps);
 
   pp = &pps[MI_SCREEN(mi)];