X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=tests%2Ficons.c;h=e2477c25e1522ee4d95211a158db33f074677519;hb=2391410e3fd7767e266c0efe84fd34244ea29dc6;hp=10e89a57dbed72e95b0a0203323af42fcbb839f2;hpb=2442cdfd85e5229c7ee4ac49ca66a7d55ffcb919;p=chaz%2Fopenbox

diff --git a/tests/icons.c b/tests/icons.c
index 10e89a57..e2477c25 100644
--- a/tests/icons.c
+++ b/tests/icons.c
@@ -23,6 +23,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <assert.h>
+#include <glib.h>
 
 Window findClient(Display *d, Window win)
 {
@@ -44,7 +45,7 @@ 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!
@@ -69,9 +70,10 @@ int main(int argc, char **argv)
     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);
@@ -87,10 +89,10 @@ int main(int argc, char **argv)
     }
 
     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,
@@ -124,23 +126,23 @@ int main(int argc, char **argv)
         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;
@@ -156,6 +158,70 @@ int main(int argc, char **argv)
         ++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);
@@ -172,7 +238,7 @@ int main(int argc, char **argv)
         x += i[j]->width;
         XDestroyImage(i[j]);
     }
-    
+
     XSetWindowBackgroundPixmap(d, win, p);
     XClearWindow(d, win);