#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
+#include <glib.h>
Window findClient(Display *d, Window win)
{
Pixmap p;
Cursor cur;
XEvent ev;
+ unsigned int bs = sizeof(long);
printf("Click on a window with an icon...\n");
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;
++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);