#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
+#include <glib.h>
Window findClient(Display *d, Window win)
{
XGetWindowProperty(d, win, state, 0, 1,
False, state, &ret_type, &ret_format,
&ret_items, &ret_bytesleft,
- (unsigned char**) &prop_return);
+ (unsigned char**) &prop_return);
if (ret_type == None || ret_items < 1)
return None;
return win; // found it!
Pixmap p;
Cursor cur;
XEvent ev;
-
+ unsigned int bs = sizeof(long);
+
printf("Click on a window with an icon...\n");
-
+
//int id = strtol(argv[1], NULL, 16);
XUngrabPointer(d, CurrentTime);
cur = XCreateFontCursor(d, XC_crosshair);
}
printf("Using window 0x%lx\n", id);
-
+
do {
unsigned int w, h;
-
+
XGetWindowProperty(d, id, net_wm_icon, offset++, 1,
False, XA_CARDINAL, &ret_type, &ret_format,
&ret_items, &ret_bytesleft,
offset += w*h;
printf("Found icon with size %dx%d\n", w, h);
-
+
i[image] = XCreateImage(d, DefaultVisual(d, s), DefaultDepth(d, s),
ZPixmap, 0, NULL, w, h, 32, 0);
assert(i[image]);
i[image]->byte_order = LSBFirst;
i[image]->data = (char*)prop_return[image];
for (j = 0; j < w*h; j++) {
- unsigned char alpha = (unsigned char)i[image]->data[j*4+3];
- unsigned char r = (unsigned char) i[image]->data[j*4+0];
- unsigned char g = (unsigned char) i[image]->data[j*4+1];
- unsigned char b = (unsigned char) i[image]->data[j*4+2];
+ unsigned char alpha = (unsigned char)i[image]->data[j*bs+3];
+ unsigned char r = (unsigned char) i[image]->data[j*bs+0];
+ unsigned char g = (unsigned char) i[image]->data[j*bs+1];
+ unsigned char b = (unsigned char) i[image]->data[j*bs+2];
// background color
unsigned char bgr = 0;
unsigned char bgg = 0;
unsigned char bgb = 0;
-
+
r = bgr + (r - bgr) * alpha / 256;
g = bgg + (g - bgg) * alpha / 256;
b = bgb + (b - bgb) * alpha / 256;
++image;
} while (ret_bytesleft > 0 && image < MAX_IMAGES);
+#define hashsize(n) ((guint32)1<<(n))
+#define hashmask(n) (hashsize(n)-1)
+#define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
+
+#define mix(a,b,c) \
+{ \
+ a -= c; a ^= rot(c, 4); c += b; \
+ b -= a; b ^= rot(a, 6); a += c; \
+ c -= b; c ^= rot(b, 8); b += a; \
+ a -= c; a ^= rot(c,16); c += b; \
+ b -= a; b ^= rot(a,19); a += c; \
+ c -= b; c ^= rot(b, 4); b += a; \
+}
+
+#define final(a,b,c) \
+{ \
+ c ^= b; c -= rot(b,14); \
+ a ^= c; a -= rot(c,11); \
+ b ^= a; b -= rot(a,25); \
+ c ^= b; c -= rot(b,16); \
+ a ^= c; a -= rot(c,4); \
+ b ^= a; b -= rot(a,14); \
+ c ^= b; c -= rot(b,24); \
+}
+
+ /* hash the images */
+ for (j = 0; j < image; ++j) {
+ unsigned int w, h, length;
+ guint32 a,b,c;
+ guint32 initval = 0xf00d;
+ const guint32 *k = (guint32*)i[j]->data;
+
+ w = i[j]->width;
+ h = i[j]->height;
+ length = w * h;
+
+ /* Set up the internal state */
+ a = b = c = 0xdeadbeef + (((guint32)length)<<2) + initval;
+
+ /*---------------------------------------- handle most of the key */
+ while (length > 3)
+ {
+ a += k[0];
+ b += k[1];
+ c += k[2];
+ mix(a,b,c);
+ length -= 3;
+ k += 3;
+ }
+
+ /*--------------------------------- handle the last 3 uint32_t's */
+ switch(length) /* all the case statements fall through */
+ {
+ case 3 : c+=k[2];
+ case 2 : b+=k[1];
+ case 1 : a+=k[0];
+ final(a,b,c);
+ case 0: /* case 0: nothing left to add */
+ break;
+ }
+ /*------------------------------------ report the result */
+ printf("image[%d] %ux%u %lu\n", j, w, h, c);
+ }
+
win = XCreateSimpleWindow(d, RootWindow(d, s), 0, 0, winw, winh,
0, 0, 0);
assert(win);
x += i[j]->width;
XDestroyImage(i[j]);
}
-
+
XSetWindowBackgroundPixmap(d, win, p);
XClearWindow(d, win);