NazaraEngine/include/Nazara/Graphics/RenderQueue.hpp

102 lines
2.4 KiB
C++

// Copyright (C) 2017 Jérôme Leclercq
// This file is part of the "Nazara Engine - Graphics module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#pragma once
#ifndef NAZARA_RENDERQUEUE_HPP
#define NAZARA_RENDERQUEUE_HPP
#include <Nazara/Prerequisites.hpp>
#include <memory>
#include <vector>
namespace Nz
{
class RenderQueueInternal
{
public:
using Index = Nz::UInt64;
RenderQueueInternal() = default;
RenderQueueInternal(const RenderQueueInternal&) = default;
RenderQueueInternal(RenderQueueInternal&&) = default;
~RenderQueueInternal() = default;
RenderQueueInternal& operator=(const RenderQueueInternal&) = default;
RenderQueueInternal& operator=(RenderQueueInternal&&) = default;
protected:
using RenderDataPair = std::pair<Index, std::size_t>;
void Sort();
std::vector<RenderDataPair> m_orderedRenderQueue;
};
template<typename RenderData>
class RenderQueue : public RenderQueueInternal
{
public:
class const_iterator;
friend const_iterator;
using size_type = std::size_t;
RenderQueue() = default;
RenderQueue(const RenderQueue&) = default;
RenderQueue(RenderQueue&&) noexcept = default;
~RenderQueue() = default;
void Clear();
void Insert(RenderData&& data);
template<typename IndexFunc> void Sort(IndexFunc&& func);
// STL API
inline const_iterator begin() const;
inline bool empty() const;
inline const_iterator end() const;
inline size_type size() const;
RenderQueue& operator=(const RenderQueue&) = default;
RenderQueue& operator=(RenderQueue&&) noexcept = default;
private:
const RenderData& GetData(std::size_t i) const;
std::vector<RenderData> m_data;
};
template<typename RenderData>
class RenderQueue<RenderData>::const_iterator : public std::iterator<std::forward_iterator_tag, const RenderData>
{
friend RenderQueue;
public:
const_iterator(const const_iterator& it);
const RenderData& operator*() const;
const_iterator& operator=(const const_iterator& it);
const_iterator& operator++();
const_iterator operator++(int);
bool operator==(const const_iterator& rhs) const;
bool operator!=(const const_iterator& rhs) const;
void swap(const_iterator& rhs);
private:
const_iterator(const RenderQueue* queue, std::size_t nextId);
std::size_t m_nextDataId;
const RenderQueue* m_queue;
};
}
#include <Nazara/Graphics/RenderQueue.inl>
#endif // NAZARA_RENDERQUEUE_HPP