eb10c21a00
This effectively allows invert() to be used on the following types: ByteArray, IntArray, RealArray, StringArray, Vector2Array, Vector3Array, ColorArray
443 lines
8.4 KiB
C++
443 lines
8.4 KiB
C++
/*************************************************************************/
|
|
/* dvector.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
#ifndef DVECTOR_H
|
|
#define DVECTOR_H
|
|
|
|
#include "os/memory.h"
|
|
|
|
|
|
/**
|
|
@author Juan Linietsky <reduzio@gmail.com>
|
|
*/
|
|
|
|
|
|
extern Mutex* dvector_lock;
|
|
|
|
template<class T>
|
|
class DVector {
|
|
|
|
mutable MID mem;
|
|
|
|
|
|
void copy_on_write() {
|
|
|
|
if (!mem.is_valid())
|
|
return;
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->lock();
|
|
|
|
MID_Lock lock( mem );
|
|
|
|
|
|
if ( *(int*)lock.data() == 1 ) {
|
|
// one reference, means no refcount changes
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
return;
|
|
}
|
|
|
|
MID new_mem= dynalloc( mem.get_size() );
|
|
|
|
if (!new_mem.is_valid()) {
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
ERR_FAIL_COND( new_mem.is_valid() ); // out of memory
|
|
}
|
|
|
|
MID_Lock dst_lock( new_mem );
|
|
|
|
int *rc = (int*)dst_lock.data();
|
|
|
|
*rc=1;
|
|
|
|
T * dst = (T*)(rc + 1 );
|
|
|
|
T * src =(T*) ((int*)lock.data() + 1 );
|
|
|
|
int count = (mem.get_size() - sizeof(int)) / sizeof(T);
|
|
|
|
for (int i=0;i<count;i++) {
|
|
|
|
memnew_placement( &dst[i], T(src[i]) );
|
|
}
|
|
|
|
(*(int*)lock.data())--;
|
|
|
|
// unlock all
|
|
dst_lock=MID_Lock();
|
|
lock=MID_Lock();
|
|
|
|
mem=new_mem;
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
|
|
}
|
|
|
|
void reference( const DVector& p_dvector ) {
|
|
|
|
unreference();
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->lock();
|
|
|
|
if (!p_dvector.mem.is_valid()) {
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
return;
|
|
}
|
|
|
|
MID_Lock lock(p_dvector.mem);
|
|
|
|
int * rc = (int*)lock.data();
|
|
(*rc)++;
|
|
|
|
lock = MID_Lock();
|
|
mem=p_dvector.mem;
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
|
|
}
|
|
|
|
|
|
void unreference() {
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->lock();
|
|
|
|
if (!mem.is_valid()) {
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
return;
|
|
}
|
|
|
|
MID_Lock lock(mem);
|
|
|
|
int * rc = (int*)lock.data();
|
|
(*rc)--;
|
|
|
|
if (*rc==0) {
|
|
// no one else using it, destruct
|
|
|
|
T * t= (T*)(rc+1);
|
|
int count = (mem.get_size() - sizeof(int)) / sizeof(T);
|
|
|
|
for (int i=0;i<count;i++) {
|
|
|
|
t[i].~T();
|
|
}
|
|
|
|
}
|
|
|
|
|
|
lock = MID_Lock();
|
|
|
|
mem = MID ();
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
|
|
}
|
|
|
|
public:
|
|
|
|
class Read {
|
|
friend class DVector;
|
|
MID_Lock lock;
|
|
const T * mem;
|
|
public:
|
|
|
|
_FORCE_INLINE_ const T& operator[](int p_index) const { return mem[p_index]; }
|
|
_FORCE_INLINE_ const T *ptr() const { return mem; }
|
|
|
|
Read() { mem=NULL; }
|
|
};
|
|
|
|
class Write {
|
|
friend class DVector;
|
|
MID_Lock lock;
|
|
T * mem;
|
|
public:
|
|
|
|
_FORCE_INLINE_ T& operator[](int p_index) { return mem[p_index]; }
|
|
_FORCE_INLINE_ T *ptr() { return mem; }
|
|
|
|
Write() { mem=NULL; }
|
|
};
|
|
|
|
|
|
Read read() const {
|
|
|
|
Read r;
|
|
if (mem.is_valid()) {
|
|
r.lock = MID_Lock( mem );
|
|
r.mem = (const T*)((int*)r.lock.data()+1);
|
|
}
|
|
return r;
|
|
}
|
|
Write write() {
|
|
|
|
Write w;
|
|
if (mem.is_valid()) {
|
|
copy_on_write();
|
|
w.lock = MID_Lock( mem );
|
|
w.mem = (T*)((int*)w.lock.data()+1);
|
|
}
|
|
return w;
|
|
}
|
|
|
|
template<class MC>
|
|
void fill_with(const MC& p_mc) {
|
|
|
|
|
|
int c=p_mc.size();
|
|
resize(c);
|
|
Write w=write();
|
|
int idx=0;
|
|
for(const typename MC::Element *E=p_mc.front();E;E=E->next()) {
|
|
|
|
w[idx++]=E->get();
|
|
}
|
|
}
|
|
|
|
|
|
void remove(int p_index) {
|
|
|
|
int s = size();
|
|
ERR_FAIL_INDEX(p_index, s);
|
|
Write w = write();
|
|
for (int i=p_index; i<s-1; i++) {
|
|
|
|
w[i]=w[i+1];
|
|
};
|
|
w = Write();
|
|
resize(s-1);
|
|
}
|
|
|
|
inline int size() const;
|
|
T get(int p_index) const;
|
|
void set(int p_index, const T& p_val);
|
|
void push_back(const T& p_val);
|
|
void append(const T& p_val) { push_back(p_val); }
|
|
void append_array(const DVector<T>& p_arr) {
|
|
int ds = p_arr.size();
|
|
if (ds==0)
|
|
return;
|
|
int bs = size();
|
|
resize( bs + ds);
|
|
Write w = write();
|
|
Read r = p_arr.read();
|
|
for(int i=0;i<ds;i++)
|
|
w[bs+i]=r[i];
|
|
}
|
|
|
|
|
|
Error insert(int p_pos,const T& p_val) {
|
|
|
|
int s=size();
|
|
ERR_FAIL_INDEX_V(p_pos,s+1,ERR_INVALID_PARAMETER);
|
|
resize(s+1);
|
|
{
|
|
Write w = write();
|
|
for (int i=s;i>p_pos;i--)
|
|
w[i]=w[i-1];
|
|
w[p_pos]=p_val;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
bool is_locked() const { return mem.is_locked(); }
|
|
|
|
inline const T operator[](int p_index) const;
|
|
|
|
Error resize(int p_size);
|
|
|
|
void invert();
|
|
|
|
void operator=(const DVector& p_dvector) { reference(p_dvector); }
|
|
DVector() {}
|
|
DVector(const DVector& p_dvector) { reference(p_dvector); }
|
|
~DVector() { unreference(); }
|
|
|
|
};
|
|
|
|
template<class T>
|
|
int DVector<T>::size() const {
|
|
|
|
return mem.is_valid() ? ((mem.get_size() - sizeof(int)) / sizeof(T) ) : 0;
|
|
}
|
|
|
|
template<class T>
|
|
T DVector<T>::get(int p_index) const {
|
|
|
|
return operator[](p_index);
|
|
}
|
|
|
|
template<class T>
|
|
void DVector<T>::set(int p_index, const T& p_val) {
|
|
|
|
if (p_index<0 || p_index>=size()) {
|
|
ERR_FAIL_COND(p_index<0 || p_index>=size());
|
|
}
|
|
|
|
Write w = write();
|
|
w[p_index]=p_val;
|
|
}
|
|
|
|
template<class T>
|
|
void DVector<T>::push_back(const T& p_val) {
|
|
|
|
resize( size() + 1 );
|
|
set( size() -1, p_val );
|
|
}
|
|
|
|
template<class T>
|
|
const T DVector<T>::operator[](int p_index) const {
|
|
|
|
if (p_index<0 || p_index>=size()) {
|
|
T& aux=*((T*)0); //nullreturn
|
|
ERR_FAIL_COND_V(p_index<0 || p_index>=size(),aux);
|
|
}
|
|
|
|
Read r = read();
|
|
|
|
return r[p_index];
|
|
}
|
|
|
|
|
|
template<class T>
|
|
Error DVector<T>::resize(int p_size) {
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->lock();
|
|
|
|
bool same = p_size==size();
|
|
|
|
if (dvector_lock)
|
|
dvector_lock->unlock();
|
|
// no further locking is necesary because we are supposed to own the only copy of this (using copy on write)
|
|
|
|
if (same)
|
|
return OK;
|
|
|
|
if (p_size == 0 ) {
|
|
|
|
unreference();
|
|
return OK;
|
|
}
|
|
|
|
|
|
copy_on_write(); // make it unique
|
|
|
|
ERR_FAIL_COND_V( mem.is_locked(), ERR_LOCKED ); // if after copy on write, memory is locked, fail.
|
|
|
|
if (p_size > size() ) {
|
|
|
|
int oldsize=size();
|
|
|
|
MID_Lock lock;
|
|
|
|
if (oldsize==0) {
|
|
|
|
mem = dynalloc( p_size * sizeof(T) + sizeof(int) );
|
|
lock=MID_Lock(mem);
|
|
int *rc = ((int*)lock.data());
|
|
*rc=1;
|
|
|
|
} else {
|
|
|
|
if (dynrealloc( mem, p_size * sizeof(T) + sizeof(int) )!=OK ) {
|
|
|
|
ERR_FAIL_V(ERR_OUT_OF_MEMORY); // out of memory
|
|
}
|
|
|
|
lock=MID_Lock(mem);
|
|
}
|
|
|
|
|
|
|
|
|
|
T *t = (T*)((int*)lock.data() + 1);
|
|
|
|
for (int i=oldsize;i<p_size;i++) {
|
|
|
|
memnew_placement(&t[i], T );
|
|
}
|
|
|
|
lock = MID_Lock(); // clear
|
|
} else {
|
|
|
|
int oldsize=size();
|
|
|
|
MID_Lock lock(mem);
|
|
|
|
|
|
T *t = (T*)((int*)lock.data() + 1);
|
|
|
|
for (int i=p_size;i<oldsize;i++) {
|
|
|
|
t[i].~T();
|
|
}
|
|
|
|
lock = MID_Lock(); // clear
|
|
|
|
if (dynrealloc( mem, p_size * sizeof(T) + sizeof(int) )!=OK ) {
|
|
|
|
ERR_FAIL_V(ERR_OUT_OF_MEMORY); // wtf error
|
|
}
|
|
|
|
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
template<class T>
|
|
void DVector<T>::invert() {
|
|
T temp;
|
|
Write w = write();
|
|
int s = size();
|
|
int half_s = s/2;
|
|
|
|
for(int i=0;i<half_s;i++) {
|
|
temp = w[i];
|
|
w[i] = w[s-i-1];
|
|
w[s-i-1] = temp;
|
|
}
|
|
}
|
|
|
|
#endif
|