--- deliantra/server/include/util.h 2011/04/23 04:56:51 1.114
+++ deliantra/server/include/util.h 2012/10/29 23:55:54 1.120
@@ -1,22 +1,22 @@
/*
* This file is part of Deliantra, the Roguelike Realtime MMORPG.
- *
- * Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
- *
+ *
+ * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+ *
* Deliantra is free software: you can redistribute it and/or modify it under
* the terms of the Affero GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the Affero GNU General Public License
* and the GNU General Public License along with this program. If not, see
* .
- *
+ *
* The authors can be reached via e-mail to
*/
@@ -88,8 +88,8 @@
// rationale for using (U) not (T) is to reduce signed/unsigned issues,
// as a is often a constant while b is the variable. it is still a bug, though.
-template static inline T min (T a, U b) { return (U)a < b ? (U)a : b; }
-template static inline T max (T a, U b) { return (U)a > b ? (U)a : b; }
+template static inline T min (T a, U b) { return a < (T)b ? a : (T)b; }
+template static inline T max (T a, U b) { return a > (T)b ? a : (T)b; }
template static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; }
template static inline void min_it (T &v, U m) { v = min (v, (T)m); }
@@ -254,6 +254,26 @@
#endif
}
+// can be substantially faster than floor, if your value range allows for it
+template
+inline T
+fastfloor (T x)
+{
+ return std::floor (x);
+}
+
+inline float
+fastfloor (float x)
+{
+ return sint32(x) - (x < 0);
+}
+
+inline double
+fastfloor (double x)
+{
+ return sint64(x) - (x < 0);
+}
+
/*
* absdir(int): Returns a number between 1 and 8, which represent
* the "absolute" direction of a number (it actually takes care of
@@ -306,7 +326,6 @@
slice_alloc -= n * sizeof (T);
if (DEBUG_POISON) memset (ptr, DEBUG_POISON, n * sizeof (T));
g_slice_free1 (n * sizeof (T), (void *)ptr);
- assert (slice_alloc >= 0);//D
}
}
@@ -432,6 +451,63 @@
}
};
+// basically a memory area, but refcounted
+struct refcnt_buf
+{
+ char *data;
+
+ refcnt_buf (size_t size = 0);
+ refcnt_buf (void *data, size_t size);
+
+ refcnt_buf (const refcnt_buf &src)
+ {
+ data = src.data;
+ ++_refcnt ();
+ }
+
+ ~refcnt_buf ();
+
+ refcnt_buf &operator =(const refcnt_buf &src);
+
+ operator char *()
+ {
+ return data;
+ }
+
+ size_t size () const
+ {
+ return _size ();
+ }
+
+protected:
+ enum {
+ overhead = sizeof (unsigned int) * 2
+ };
+
+ unsigned int &_size () const
+ {
+ return ((unsigned int *)data)[-2];
+ }
+
+ unsigned int &_refcnt () const
+ {
+ return ((unsigned int *)data)[-1];
+ }
+
+ void _alloc (unsigned int size)
+ {
+ data = ((char *)salloc (size + overhead)) + overhead;
+ _size () = size;
+ _refcnt () = 1;
+ }
+
+ void dec ()
+ {
+ if (!--_refcnt ())
+ sfree (data - overhead, size () + overhead);
+ }
+};
+
INTERFACE_CLASS (attachable)
struct refcnt_base
{
@@ -580,7 +656,7 @@
// This container blends advantages of linked lists
// (efficiency) with vectors (random access) by
-// by using an unordered vector and storing the vector
+// using an unordered vector and storing the vector
// index inside the object.
//
// + memory-efficient on most 64 bit archs
@@ -627,7 +703,7 @@
void erase (T *obj)
{
- unsigned int pos = obj->*indexmember;
+ object_vector_index pos = obj->*indexmember;
obj->*indexmember = 0;
if (pos < this->size ())