Modules/Containers/public/Buffer2D.hpp
2023-10-15 23:25:48 +03:00

114 lines
2.6 KiB
C++

#pragma once
#include "Buffer.hpp"
#include "Utils.hpp"
namespace tp {
template< typename tType, ualni tSizeX, ualni tSizeY >
using ConstSizeBuffer2D = ConstSizeBuffer<ConstSizeBuffer<tType, tSizeX>, tSizeY>;
template <
typename tType,
class tAllocator = DefaultAllocator
>
class Buffer2D {
public:
typedef ualni Index;
typedef Pair<Index, Index> Index2D;
typedef SelectValueOrReference<tType> tTypeArg;
private:
tAllocator mAlloc;
tType* mBuff = nullptr;
Index2D mSize = { 0, 0 };
void deleteBuffer() {
if (!mBuff) return;
for (ualni i = 0; i < mSize.x * mSize.y; i++) mBuff[i].~tType();
mAlloc.deallocate(mBuff);
}
void allocateBuffer(Index2D size) {
deleteBuffer();
mBuff = (tType*) mAlloc.allocate(sizeof(tType) * size.x * size.y);
for (ualni i = 0; i < mSize.x * mSize.y; i++) new (mBuff + i) tType();
}
public:
Buffer2D() = default;
~Buffer2D() {
deleteBuffer();
mSize = { 0, 0 };
}
explicit Buffer2D(Index2D aSize) {
reserve(aSize);
}
[[nodiscard]] Index2D size() const {
return { mSize.x, mSize.y };
}
tType* getBuff() const {
return mBuff;
}
inline tType& get(const Index2D& at) {
DEBUG_ASSERT(mBuff && at.x < mSize.x && at.y < mSize.y && at.x >= 0 && at.y >= 0)
return *(mBuff + mSize.x * at.y + at.x);
}
inline const tType& get(const Index2D& at) const {
DEBUG_ASSERT(mBuff && at.x < mSize.x && at.y < mSize.y && at.x >= 0 && at.y >= 0)
return *(mBuff + mSize.x * at.y + at.x);
}
inline void set(const Index2D& at, tTypeArg value) {
DEBUG_ASSERT(mBuff && at.x < mSize.x && at.y < mSize.y && at.x >= 0 && at.y >= 0)
*(mBuff + mSize.x * at.y + at.x) = value;
}
void reserve(const Index2D& newSize) {
if (mSize.x != newSize.x || mSize.y != newSize.y) {
allocateBuffer(newSize);
mSize = newSize;
}
}
void assign(tType value) {
DEBUG_ASSERT(mBuff);
Index len = mSize.x * mSize.y;
for (Index i = 0; i < len; i++) {
mBuff[i] = value;
}
}
public:
template<class tArchiver>
void archiveWrite(tArchiver& ar) const {
ar << mSize;
for (auto i = 0; i < mSize.x; i++) {
for (auto j = 0; j < mSize.y; j++) {
ar << get(i, j);
}
}
}
template<class tArchiver>
void archiveRead(tArchiver& ar) {
decltype(mSize) size;
deleteBuffer();
ar >> size;
reserve(size);
for (auto i = 0; i < mSize.x; i++) {
for (auto j = 0; j < mSize.y; j++) {
ar >> get(i, j);
}
}
}
};
}