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lib/haxebullet/bullet/BulletCollision/Gimpact/gim_array.h

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+#ifndef GIM_ARRAY_H_INCLUDED
+#define GIM_ARRAY_H_INCLUDED
+/*! \file gim_array.h
+\author Francisco Leon Najera
+*/
+/*
+-----------------------------------------------------------------------------
+This source file is part of GIMPACT Library.
+
+For the latest info, see http://gimpact.sourceforge.net/
+
+Copyright (c) 2006 Francisco Leon Najera. C.C. 80087371.
+email: projectileman@yahoo.com
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of EITHER:
+   (1) The GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 2.1 of the License, or (at
+       your option) any later version. The text of the GNU Lesser
+       General Public License is included with this library in the
+       file GIMPACT-LICENSE-LGPL.TXT.
+   (2) The BSD-style license that is included with this library in
+       the file GIMPACT-LICENSE-BSD.TXT.
+   (3) The zlib/libpng license that is included with this library in
+       the file GIMPACT-LICENSE-ZLIB.TXT.
+
+ This library 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 files
+ GIMPACT-LICENSE-LGPL.TXT, GIMPACT-LICENSE-ZLIB.TXT and GIMPACT-LICENSE-BSD.TXT for more details.
+
+-----------------------------------------------------------------------------
+*/
+
+#include "gim_memory.h"
+
+
+#define GIM_ARRAY_GROW_INCREMENT 2
+#define GIM_ARRAY_GROW_FACTOR 2
+
+//!	Very simple array container with fast access and simd memory
+template<typename T>
+class gim_array
+{
+public:
+//! properties
+//!@{
+    T *m_data;
+    GUINT m_size;
+    GUINT m_allocated_size;
+//!@}
+//! protected operations
+//!@{
+
+    inline void destroyData()
+	{
+	    m_allocated_size = 0;
+		if(m_data==NULL) return;
+		gim_free(m_data);
+		m_data = NULL;
+	}
+
+	inline bool resizeData(GUINT newsize)
+	{
+		if(newsize==0)
+		{
+			destroyData();
+			return true;
+		}
+
+		if(m_size>0)
+		{
+            m_data = (T*)gim_realloc(m_data,m_size*sizeof(T),newsize*sizeof(T));
+		}
+		else
+		{
+		    m_data = (T*)gim_alloc(newsize*sizeof(T));
+		}
+		m_allocated_size = newsize;
+		return true;
+	}
+
+	inline bool growingCheck()
+	{
+		if(m_allocated_size<=m_size)
+		{
+		    GUINT requestsize = m_size;
+		    m_size = m_allocated_size;
+			if(resizeData((requestsize+GIM_ARRAY_GROW_INCREMENT)*GIM_ARRAY_GROW_FACTOR)==false) return false;
+		}
+		return true;
+	}
+
+//!@}
+//! public operations
+//!@{
+    inline  bool reserve(GUINT size)
+    {
+        if(m_allocated_size>=size) return false;
+        return resizeData(size);
+    }
+
+    inline void clear_range(GUINT start_range)
+    {
+        while(m_size>start_range)
+        {
+            m_data[--m_size].~T();
+        }
+    }
+
+    inline void clear()
+    {
+        if(m_size==0)return;
+        clear_range(0);
+    }
+
+    inline void clear_memory()
+    {
+        clear();
+        destroyData();
+    }
+
+    gim_array()
+    {
+        m_data = 0;
+        m_size = 0;
+        m_allocated_size = 0;
+    }
+
+    gim_array(GUINT reservesize)
+    {
+        m_data = 0;
+        m_size = 0;
+
+        m_allocated_size = 0;
+        reserve(reservesize);
+    }
+
+    ~gim_array()
+    {
+        clear_memory();
+    }
+
+    inline GUINT size() const
+    {
+        return m_size;
+    }
+
+    inline GUINT max_size() const
+    {
+        return m_allocated_size;
+    }
+
+    inline T & operator[](size_t i)
+	{
+		return m_data[i];
+	}
+	inline  const T & operator[](size_t i) const
+	{
+		return m_data[i];
+	}
+
+    inline T * pointer(){ return m_data;}
+    inline const T * pointer() const
+    { return m_data;}
+
+
+    inline T * get_pointer_at(GUINT i)
+	{
+		return m_data + i;
+	}
+
+	inline const T * get_pointer_at(GUINT i) const
+	{
+		return m_data + i;
+	}
+
+	inline T & at(GUINT i)
+	{
+		return m_data[i];
+	}
+
+	inline const T & at(GUINT i) const
+	{
+		return m_data[i];
+	}
+
+	inline T & front()
+	{
+		return *m_data;
+	}
+
+	inline const T & front() const
+	{
+		return *m_data;
+	}
+
+	inline T & back()
+	{
+		return m_data[m_size-1];
+	}
+
+	inline const T & back() const
+	{
+		return m_data[m_size-1];
+	}
+
+
+	inline void swap(GUINT i, GUINT j)
+	{
+	    gim_swap_elements(m_data,i,j);
+	}
+
+	inline void push_back(const T & obj)
+	{
+	    this->growingCheck();
+	    m_data[m_size] = obj;
+	    m_size++;
+	}
+
+	//!Simply increase the m_size, doesn't call the new element constructor
+	inline void push_back_mem()
+	{
+	    this->growingCheck();
+	    m_size++;
+	}
+
+	inline void push_back_memcpy(const T & obj)
+	{
+	    this->growingCheck();
+	    gim_simd_memcpy(&m_data[m_size],&obj,sizeof(T));
+	    m_size++;
+	}
+
+	inline void pop_back()
+	{
+	    m_size--;
+        m_data[m_size].~T();
+	}
+
+	//!Simply decrease the m_size, doesn't call the deleted element destructor
+	inline void pop_back_mem()
+	{
+	    m_size--;
+	}
+
+    //! fast erase
+	inline void erase(GUINT index)
+	{
+	    if(index<m_size-1)
+	    {
+	        swap(index,m_size-1);
+	    }
+	    pop_back();
+	}
+
+	inline void erase_sorted_mem(GUINT index)
+	{
+	    m_size--;
+	    for(GUINT i = index;i<m_size;i++)
+	    {
+	        gim_simd_memcpy(m_data+i,m_data+i+1,sizeof(T));
+	    }
+	}
+
+	inline void erase_sorted(GUINT index)
+	{
+	    m_data[index].~T();
+	    erase_sorted_mem(index);
+	}
+
+	inline void insert_mem(GUINT index)
+	{
+	    this->growingCheck();
+	    for(GUINT i = m_size;i>index;i--)
+	    {
+	        gim_simd_memcpy(m_data+i,m_data+i-1,sizeof(T));
+	    }
+	    m_size++;
+	}
+
+	inline void insert(const T & obj,GUINT index)
+	{
+	    insert_mem(index);
+	    m_data[index] = obj;
+	}
+
+	inline void resize(GUINT size, bool call_constructor = true, const T& fillData=T())
+	{
+	    if(size>m_size)
+	    {
+            reserve(size);
+            if(call_constructor)
+            {
+                while(m_size<size)
+                {
+                    m_data[m_size] = fillData;
+                    m_size++;
+                }
+            }
+            else
+            {
+            	m_size = size;
+            }
+	    }
+	    else if(size<m_size)
+	    {
+	        if(call_constructor) clear_range(size);
+	        m_size = size;
+	    }
+	}
+
+	inline void refit()
+	{
+	    resizeData(m_size);
+	}
+
+};
+
+
+
+
+
+#endif // GIM_CONTAINERS_H_INCLUDED