ppsspp/Common/Serialize/SerializeFuncs.h
2022-12-02 22:46:38 +01:00

126 lines
3.2 KiB
C++

// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#pragma once
// Templates for save state serialization. See Serializer.h.
#include <string>
#include <type_traits>
#include "Common/Serialize/Serializer.h"
#include "Common/Swap.h"
void Do(PointerWrap &p, std::string &x);
void Do(PointerWrap &p, std::wstring &x); // DEPRECATED, do not save wstrings
void Do(PointerWrap &p, std::u16string &x);
void Do(PointerWrap &p, tm &t);
// Don't use DoHelper_ directly. Just use Do().
// This makes it a compile error if you forget to define DoState() on non-POD.
// Which also can be a problem, for example struct tm is non-POD on linux, for whatever reason...
template<typename T, bool isPOD = std::is_standard_layout<T>::value && std::is_trivial<T>::value, bool isPointer = std::is_pointer<T>::value>
struct DoHelper_ {
static void DoArray(PointerWrap &p, T *x, int count) {
for (int i = 0; i < count; ++i)
Do(p, x[i]);
}
static void DoThing(PointerWrap &p, T &x) {
DoClass(p, x);
}
};
template<typename T>
struct DoHelper_<T, true, false> {
static void DoArray(PointerWrap &p, T *x, int count) {
p.DoVoid((void *)x, sizeof(T) * count);
}
static void DoThing(PointerWrap &p, T &x) {
p.DoVoid((void *)&x, sizeof(x));
}
};
template<class T>
void DoClass(PointerWrap &p, T &x) {
x.DoState(p);
}
template<class T>
void DoClass(PointerWrap &p, T *&x) {
if (p.mode == PointerWrap::MODE_READ) {
if (x != nullptr)
delete x;
x = new T();
}
x->DoState(p);
}
template<class T>
void DoArray(PointerWrap &p, T *x, int count) {
DoHelper_<T>::DoArray(p, x, count);
}
template<class T>
void Do(PointerWrap &p, T &x) {
DoHelper_<T>::DoThing(p, x);
}
template<class T>
void DoVector(PointerWrap &p, std::vector<T> &x, T &default_val) {
u32 vec_size = (u32)x.size();
Do(p, vec_size);
if (vec_size != x.size())
x.resize(vec_size, default_val);
if (vec_size > 0)
DoArray(p, &x[0], vec_size);
}
template<class T>
void Do(PointerWrap &p, std::vector<T *> &x) {
T *dv = nullptr;
DoVector(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::vector<T> &x) {
T dv = T();
DoVector(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::vector<T> &x, T &default_val) {
DoVector(p, x, default_val);
}
template<typename T, typename F>
void Do(PointerWrap &p, swap_struct_t<T, F> &x) {
T v = x.swap();
Do(p, v);
x = v;
}
template<class T>
void DoPointer(PointerWrap &p, T *&x, T *const base) {
// pointers can be more than 2^31 apart, but you're using this function wrong if you need that much range
s32 offset = x - base;
Do(p, offset);
if (p.mode == PointerWrap::MODE_READ)
x = base + offset;
}