#include <math.h>
#include "screenhack.h"
+#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
+# include "xdbe.h"
+#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
+
#define countof(x) (sizeof(x)/sizeof(*(x)))
#define ABS(x) ((x)<0?-(x):(x))
"*speed: 15",
"*ncolors: 20",
"*doubleBuffer: True",
+#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
+ "*useDBE: True",
+#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
0
};
{ "-count", ".count", XrmoptionSepArg, 0 },
{ "-ncolors", ".ncolors", XrmoptionSepArg, 0 },
{ "-speed", ".speed", XrmoptionSepArg, 0 },
+ { "-db", ".doubleBuffer", XrmoptionNoArg, "True" },
+ { "-no-db", ".doubleBuffer", XrmoptionNoArg, "False" },
{ 0, 0, 0, 0 }
};
struct throbber **throbbers;
XWindowAttributes xgwa;
Pixmap b=0, ba=0, bb=0; /* double-buffer to reduce flicker */
+#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
+ XdbeBackBuffer backb = 0;
+#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
XGetWindowAttributes (dpy, window, &xgwa);
- make_random_colormap (dpy, xgwa.visual, xgwa.colormap,
- colors, &ncolors, True, True, 0, True);
+
+ if (get_boolean_resource("mono", "Boolean"))
+ {
+ MONO:
+ ncolors = 1;
+ colors[0].pixel = get_pixel_resource("foreground", "Foreground",
+ dpy, xgwa.colormap);
+ }
+ else
+ {
+ make_random_colormap (dpy, xgwa.visual, xgwa.colormap,
+ colors, &ncolors, True, True, 0, True);
+ if (ncolors < 2)
+ goto MONO;
+ }
if (dbuf)
{
- ba = XCreatePixmap (dpy, window, xgwa.width, xgwa.height, xgwa.depth);
- bb = XCreatePixmap (dpy, window, xgwa.width, xgwa.height, xgwa.depth);
- b = ba;
+#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
+ b = backb = xdbe_get_backbuffer (dpy, window, XdbeUndefined);
+#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
+
+ if (!b)
+ {
+ ba = XCreatePixmap (dpy, window, xgwa.width, xgwa.height,xgwa.depth);
+ bb = XCreatePixmap (dpy, window, xgwa.width, xgwa.height,xgwa.depth);
+ b = ba;
+ }
}
else
{
throbbers[i] = make_throbber (dpy, b, xgwa.width, xgwa.height,
colors[random() % ncolors].pixel);
- if (dbuf)
- {
- gcv.foreground = get_pixel_resource ("background", "Background",
- dpy, xgwa.colormap);
- erase_gc = XCreateGC (dpy, b, GCForeground, &gcv);
- XFillRectangle (dpy, ba, erase_gc, 0, 0, xgwa.width, xgwa.height);
- XFillRectangle (dpy, bb, erase_gc, 0, 0, xgwa.width, xgwa.height);
- }
+ gcv.foreground = get_pixel_resource ("background", "Background",
+ dpy, xgwa.colormap);
+ erase_gc = XCreateGC (dpy, b, GCForeground, &gcv);
+
+ if (ba) XFillRectangle (dpy, ba, erase_gc, 0, 0, xgwa.width, xgwa.height);
+ if (bb) XFillRectangle (dpy, bb, erase_gc, 0, 0, xgwa.width, xgwa.height);
while (1)
{
- if (dbuf)
- XFillRectangle (dpy, b, erase_gc, 0, 0, xgwa.width, xgwa.height);
- else
- XClearWindow (dpy, b);
+ XFillRectangle (dpy, b, erase_gc, 0, 0, xgwa.width, xgwa.height);
for (i = 0; i < count; i++)
if (throb (dpy, b, throbbers[i]) < 0)
throbbers[i] = make_throbber (dpy, b, xgwa.width, xgwa.height,
colors[random() % ncolors].pixel);
+
+#ifdef HAVE_DOUBLE_BUFFER_EXTENSION
+ if (backb)
+ {
+ XdbeSwapInfo info[1];
+ info[0].swap_window = window;
+ info[0].swap_action = XdbeUndefined;
+ XdbeSwapBuffers (dpy, info, 1);
+ }
+ else
+#endif /* HAVE_DOUBLE_BUFFER_EXTENSION */
if (dbuf)
{
XCopyArea (dpy, b, window, erase_gc, 0, 0,