--- deliantra/Deliantra-Client/Client.xs	2008/10/02 15:59:40	1.279
+++ deliantra/Deliantra-Client/Client.xs	2008/11/26 23:08:34	1.280
@@ -235,6 +235,7 @@
   uint8_t r, g, b, a;
   tileid smoothtile;
   uint8_t smoothlevel;
+  uint8_t unused; /* set to zero on use */
 } maptex;
 
 typedef struct {
@@ -1208,6 +1209,13 @@
 #endif
 }
 
+int
+SvREFCNT (SV *sv)
+	CODE:
+        RETVAL = SvREFCNT (sv);
+	OUTPUT:
+	RETVAL
+
 MODULE = Deliantra::Client	PACKAGE = DC::Font
 
 PROTOTYPES: DISABLE
@@ -1762,6 +1770,26 @@
        glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 }
 
+void
+expire_textures (DC::Map self, int texid, int count)
+	PPCODE:
+  	for (; texid < self->texs && count; ++texid, --count)
+          {
+            maptex *tex = self->tex + texid;
+
+            if (tex->name)
+              {
+                if (tex->unused)
+                  {
+                    tex->name   = 0;
+                    tex->unused = 0,
+                    XPUSHs (sv_2mortal (newSViv (texid)));
+                  }
+                else
+                  tex->unused = 1;
+              }
+          }
+
 int
 ox (DC::Map self)
 	ALIAS:
@@ -1891,12 +1919,14 @@
                       if (cell->tile [z])
                         {
                           maptex *tex = self->tex + cell->tile [z];
+                          tex->unused = 0;
                           if (!tex->name)
                             av_push (missing, newSViv (cell->tile [z]));
 
                           if (tex->smoothtile)
                             {
                               maptex *smooth = self->tex + tex->smoothtile;
+                              smooth->unused = 0;
                               if (!smooth->name)
                                 av_push (missing, newSViv (tex->smoothtile));
                             }
@@ -2051,6 +2081,8 @@
 
                             if (key.texname != tex.name)
                               {
+                                self->tex [tile].unused = 0;
+
                                 if (!tex.name)
                                   tex = self->tex [2]; /* missing, replace by noface */
 
@@ -2182,6 +2214,8 @@
                                       // save gobs of state changes.
                                       if (key.texname != tex.name)
                                         {
+                                          self->tex [skey->tile].unused = 0;
+
                                           glEnd ();
                                           glBindTexture (GL_TEXTURE_2D, key.texname = tex.name);
                                           glBegin (GL_QUADS);