+static unsigned hash2(int char1, int char2)
+{
+ unsigned hash = char1^(char2<<8);
+ hash += (hash << 3);
+ hash ^= (hash >> 11);
+ hash += (hash << 15);
+ return hash;
+}
+static void hashadd(FONTUSAGE*u, int char1, int char2, int nr)
+{
+ unsigned hash = hash2(char1, char2);
+ while(1) {
+ hash = hash%u->neighbors_hash_size;
+ if(!u->neighbors_hash[hash]) {
+ u->neighbors_hash[hash] = nr+1;
+ return;
+ }
+ hash++;
+ }
+}
+int swf_FontUseGetPair(SWFFONT * f, int char1, int char2)
+{
+ FONTUSAGE*u = f->use;
+ if(!u || !u->neighbors_hash_size)
+ return 0;
+ unsigned hash = hash2(char1, char2);
+ while(1) {
+ hash = hash%u->neighbors_hash_size;
+ int pos = u->neighbors_hash[hash];
+ if(!pos)
+ return 0;
+ if(pos &&
+ u->neighbors[pos-1].char1 == char1 &&
+ u->neighbors[pos-1].char2 == char2) {
+ return pos;
+ }
+ hash++;
+ }
+
+}
+void swf_FontUsePair(SWFFONT * f, int char1, int char2)
+{
+ if (!f->use)
+ swf_FontInitUsage(f);
+ FONTUSAGE*u = f->use;
+
+ if(u->num_neighbors*3 >= u->neighbors_hash_size*2) {
+ if(u->neighbors_hash) {
+ free(u->neighbors_hash);
+ }
+ u->neighbors_hash_size = u->neighbors_hash_size?u->neighbors_hash_size*2:1024;
+ u->neighbors_hash = rfx_calloc(u->neighbors_hash_size*sizeof(int));
+ int t;
+ for(t=0;t<u->num_neighbors;t++) {
+ hashadd(u, u->neighbors[t].char1, u->neighbors[t].char2, t);
+ }
+ }
+
+ int nr = swf_FontUseGetPair(f, char1, char2);
+ if(!nr) {
+ if(u->num_neighbors == u->neighbors_size) {
+ u->neighbors_size += 4096;
+ u->neighbors = rfx_realloc(u->neighbors, sizeof(SWFGLYPHPAIR)*u->neighbors_size);
+ }
+ u->neighbors[u->num_neighbors].char1 = char1;
+ u->neighbors[u->num_neighbors].char2 = char2;
+ u->neighbors[u->num_neighbors].num = 1;
+ hashadd(u, char1, char2, u->num_neighbors);
+ u->num_neighbors++;
+ } else {
+ u->neighbors[nr-1].num++;
+ }
+}
+
+int swf_FontUseGlyph(SWFFONT * f, int glyph, U16 size)