From http://www.jwz.org/xscreensaver/xscreensaver-5.22.tar.gz

[xscreensaver] / hacks / swirl.c

diff --git a/hacks/swirl.c b/hacks/swirl.c
index bfd2706c8c5aa5ba90324acd199948807a25ccfe..efe2f8d1d89b3b57d87c35a0373792294d515c01 100644 (file)
--- a/hacks/swirl.c
+++ b/hacks/swirl.c
@@ -1,7 +1,7 @@
 /* -*- Mode: C; tab-width: 4 -*-
  * swirl --- swirly color-cycling patterns.
  */
-#if !defined( lint ) && !defined( SABER )
+#if 0
 static const char sccsid[] = "@(#)swirl.c      4.00 97/01/01 xlockmore";
 #endif
 
@@ -30,18 +30,17 @@ static const char sccsid[] = "@(#)swirl.c   4.00 97/01/01 xlockmore";
  */
 
 #ifdef STANDALONE
-# define PROGCLASS                                     "Swirl"
-# define HACK_INIT                                     init_swirl
-# define HACK_DRAW                                     draw_swirl
-# define swirl_opts                                    xlockmore_opts
 # define DEFAULTS      "*count:                5       \n"                     \
                                        "*delay:                10000   \n"                     \
                                        "*ncolors:              200     \n"                     \
-                                       "*useSHM:               True    \n"
+                                       "*useSHM:               True    \n" \
+                                       "*fpsSolid:             true    \n" \
+                                       "*ignoreRotation: True \n" \
+
 # define SMOOTH_COLORS
 # define WRITABLE_COLORS
+# define swirl_handle_event 0
 # include "xlockmore.h"                                /* from the xscreensaver distribution */
-# include <X11/Xutil.h>
 # ifdef HAVE_XSHM_EXTENSION
 #  include "xshm.h"
 # endif /* HAVE_XSHM_EXTENSION */
@@ -50,7 +49,7 @@ static const char sccsid[] = "@(#)swirl.c     4.00 97/01/01 xlockmore";
 # undef HAVE_XSHM_EXTENSION
 #endif /* !STANDALONE */
 
-ModeSpecOpt swirl_opts = {
+ENTRYPOINT ModeSpecOpt swirl_opts = {
   0, NULL, 0, NULL, NULL };
 
 #include <time.h>
@@ -224,9 +223,7 @@ initialise_swirl(ModeInfo * mi, SWIRL_P swirl)
 #endif /* !STANDALONE */
 
 
-#ifdef STANDALONE
-# define MI_COLORMAP MI_WIN_COLORMAP
-#else /* !STANDALONE */
+#ifndef STANDALONE
        swirl->fg = MI_FG_COLOR(mi);
        swirl->bg = MI_BG_COLOR(mi);
        swirl->fgcol.pixel = swirl->fg;
@@ -1248,7 +1245,7 @@ next_point(SWIRL_P swirl)
  *
  * -      win is the window to draw in
  */
-void
+ENTRYPOINT void
 init_swirl(ModeInfo * mi)
 {
        Display    *display = MI_DISPLAY(mi);
@@ -1257,19 +1254,14 @@ init_swirl(ModeInfo * mi)
 
        /* does the swirls array exist? */
        if (swirls == NULL) {
-               int         i;
-
                /* allocate an array, one entry for each screen */
-               swirls = (SWIRL_P) calloc(ScreenCount(display), sizeof (SWIRL));
-
-               /* initialise them all */
-               for (i = 0; i < ScreenCount(display); i++)
-                       initialise_swirl(mi, &swirls[i]);
+               swirls = (SWIRL_P) calloc(MI_NUM_SCREENS(mi), sizeof (SWIRL));
        }
        /* get a pointer to this swirl */
        swirl = &(swirls[MI_SCREEN(mi)]);
-
-       /* get window parameters */
+        initialise_swirl(mi, swirl);
+                
+        /* get window parameters */
        swirl->win = window;
        swirl->width = MI_WIN_WIDTH(mi);
        swirl->height = MI_WIN_HEIGHT(mi);
@@ -1350,7 +1342,7 @@ init_swirl(ModeInfo * mi)
  *
  * -      win is the window to draw in
  */
-void
+ENTRYPOINT void
 draw_swirl(ModeInfo * mi)
 {
        SWIRL_P     swirl = &(swirls[MI_SCREEN(mi)]);
@@ -1361,7 +1353,7 @@ draw_swirl(ModeInfo * mi)
                if (swirl->drawing) {
 #ifdef STANDALONE
                  if (mi->writable_p)
-                       rotate_colors(MI_DISPLAY(mi), MI_COLORMAP(mi),
+                       rotate_colors(mi->xgwa.screen, MI_COLORMAP(mi),
                                                  swirl->rgb_values, swirl->colours, 1);
 #else  /* !STANDALONE */
                        /* rotate the colours */
@@ -1383,7 +1375,7 @@ draw_swirl(ModeInfo * mi)
                } else {
 #ifdef STANDALONE
                  if (mi->writable_p)
-                       rotate_colors(MI_DISPLAY(mi), MI_COLORMAP(mi),
+                       rotate_colors(mi->xgwa.screen, MI_COLORMAP(mi),
                                                  swirl->rgb_values, swirl->colours, 1);
 #else  /* !STANDALONE */
                        /* rotate the colours */
@@ -1421,10 +1413,9 @@ draw_swirl(ModeInfo * mi)
 #ifdef STANDALONE
                                        /* Pick a new colormap! */
                                        XClearWindow (MI_DISPLAY(mi), MI_WINDOW(mi));
-                                       free_colors (MI_DISPLAY(mi), MI_COLORMAP(mi),
+                                       free_colors (mi->xgwa.screen, MI_COLORMAP(mi),
                                                                 mi->colors, mi->npixels);
-                                       make_smooth_colormap (MI_DISPLAY(mi),
-                                                                                 MI_VISUAL(mi),
+                                       make_smooth_colormap (mi->xgwa.screen, MI_VISUAL(mi),
                                                                                  MI_COLORMAP(mi),
                                                                                  mi->colors, &mi->npixels, True,
                                                                                  &mi->writable_p, True);
@@ -1441,10 +1432,17 @@ draw_swirl(ModeInfo * mi)
        }
 }
 
+ENTRYPOINT void
+reshape_swirl(ModeInfo * mi, int width, int height)
+{
+  XClearWindow (MI_DISPLAY (mi), MI_WINDOW(mi));
+  init_swirl (mi);
+}
+
 /****************************************************************/
 
-void
-release_swirl(ModeInfo * mi)
+ENTRYPOINT void
+release_swirl (ModeInfo * mi)
 {
        /* does the swirls array exist? */
        if (swirls != NULL) {
@@ -1454,10 +1452,14 @@ release_swirl(ModeInfo * mi)
                for (i = 0; i < MI_NUM_SCREENS(mi); i++) {
                        SWIRL_P     swirl = &(swirls[i]);
 
+#ifndef STANDALONE
                        if (swirl->cmap != (Colormap) NULL)
                                XFreeColormap(MI_DISPLAY(mi), swirl->cmap);
+#endif /* STANDALONE */
+#ifndef STANDALONE
                        if (swirl->rgb_values != NULL)
                                XFree((void *) swirl->rgb_values);
+#endif /* !STANDALONE */
                        if (swirl->ximage != NULL)
                                XDestroyImage(swirl->ximage);
                        if (swirl->knots)
@@ -1471,8 +1473,8 @@ release_swirl(ModeInfo * mi)
 
 /****************************************************************/
 
-void
-refresh_swirl(ModeInfo * mi)
+ENTRYPOINT void
+refresh_swirl (ModeInfo * mi)
 {
        SWIRL_P     swirl = &(swirls[MI_SCREEN(mi)]);
 
@@ -1482,3 +1484,5 @@ refresh_swirl(ModeInfo * mi)
                swirl->drawing = False;
        }
 }
+
+XSCREENSAVER_MODULE ("Swirl", swirl)