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

[xscreensaver] / hacks / thornbird.c

diff --git a/hacks/thornbird.c b/hacks/thornbird.c
index cb5541de2e99b9bc12e3c697f558c7971a03e997..07e0cbde5e5dd06dc5ed6e366b97e962dc4e24b2 100644 (file)
--- a/hacks/thornbird.c
+++ b/hacks/thornbird.c
@@ -37,8 +37,11 @@ static const char sccsid[] = "@(#)thornbird.c        5.00 2000/11/01 xlockmore";
                                         "*ncolors: 64    \n" \
                                         "*fpsSolid: true    \n" \
                                        "*ignoreRotation: True \n" \
+                                   "*lowrez: True \n" \
 
 # define BRIGHT_COLORS
+# define release_thornbird 0
+# define reshape_thornbird 0
 # define thornbird_handle_event 0
 # include "xlockmore.h"                /* in xscreensaver distribution */
 #else /* STANDALONE */
@@ -52,8 +55,8 @@ ENTRYPOINT ModeSpecOpt thornbird_opts =
 
 #ifdef USE_MODULES
 ModStruct   thornbird_description =
-{"thornbird", "init_thornbird", "draw_thornbird", "release_thornbird",
- "refresh_thornbird", "init_thornbird", (char *) NULL, &thornbird_opts,
+{"thornbird", "init_thornbird", "draw_thornbird", (char *) NULL,
+ "refresh_thornbird", "init_thornbird", "free_thornbird", &thornbird_opts,
  1000, 800, 16, 1, 64, 1.0, "",
  "Shows an animated Bird in a Thorn Bush fractal map", 0, NULL};
 
@@ -90,9 +93,10 @@ typedef struct {
 
 static thornbirdstruct *thornbirds = (thornbirdstruct *) NULL;
 
-static void
-free_thornbird(thornbirdstruct *hp)
+ENTRYPOINT void
+free_thornbird(ModeInfo * mi)
 {
+       thornbirdstruct *hp = &thornbirds[MI_SCREEN(mi)];
        if (hp->pointBuffer != NULL) {
                int         buffer;
 
@@ -109,12 +113,7 @@ init_thornbird (ModeInfo * mi)
 {
        thornbirdstruct *hp;
 
-       if (thornbirds == NULL) {
-               if ((thornbirds =
-                    (thornbirdstruct *) calloc(MI_NUM_SCREENS(mi),
-                                         sizeof (thornbirdstruct))) == NULL)
-                       return;
-       }
+       MI_INIT (mi, thornbirds);
        hp = &thornbirds[MI_SCREEN(mi)];
 
 
@@ -132,14 +131,14 @@ init_thornbird (ModeInfo * mi)
        if (hp->pointBuffer == NULL)
                if ((hp->pointBuffer = (XPoint **) calloc(MI_CYCLES(mi),
                                sizeof (XPoint *))) == NULL) {
-                       free_thornbird(hp);
+                       free_thornbird(mi);
                        return;
                }
 
        if (hp->pointBuffer[0] == NULL)
                if ((hp->pointBuffer[0] = (XPoint *) malloc(MI_COUNT(mi) *
                                sizeof (XPoint))) == NULL) {
-                       free_thornbird(hp);
+                       free_thornbird(mi);
                        return;
                }
 
@@ -222,10 +221,11 @@ draw_thornbird(ModeInfo * mi)
 
        MI_IS_DRAWN(mi) = True;
 
+    if (MI_COUNT(mi) < 1) MI_COUNT(mi) = 1;
        if (hp->pointBuffer[erase] == NULL) {
                if ((hp->pointBuffer[erase] = (XPoint *) malloc(MI_COUNT(mi) *
                                sizeof (XPoint))) == NULL) {
-                       free_thornbird(hp);
+                       free_thornbird(mi);
                        return;
                }
        } else {
@@ -250,31 +250,13 @@ draw_thornbird(ModeInfo * mi)
        hp->inc++;
 }
 
-ENTRYPOINT void
-reshape_thornbird(ModeInfo * mi, int width, int height)
-{
-  XClearWindow (MI_DISPLAY (mi), MI_WINDOW(mi));
-  init_thornbird (mi);
-}
-
-ENTRYPOINT void
-release_thornbird(ModeInfo * mi)
-{
-       if (thornbirds != NULL) {
-               int         screen;
-
-               for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++)
-                       free_thornbird(&thornbirds[screen]);
-               (void) free((void *) thornbirds);
-               thornbirds = (thornbirdstruct *) NULL;
-       }
-}
-
+#ifndef STANDALONE
 ENTRYPOINT void
 refresh_thornbird (ModeInfo * mi)
 {
        MI_CLEARWINDOW(mi);
 }
+#endif
 
 
 XSCREENSAVER_MODULE ("Thornbird", thornbird)