136 lines
3.2 KiB
C++
136 lines
3.2 KiB
C++
// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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// This file is part of the "Nazara Engine - Renderer module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <NazaraUtils/Algorithm.hpp>
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#include <NazaraUtils/MemoryHelper.hpp>
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#include <Nazara/Renderer/Debug.hpp>
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namespace Nz
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{
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inline RenderResources::RenderResources(RenderDevice& renderDevice) :
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m_renderDevice(renderDevice)
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{
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}
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inline void RenderResources::FlushReleaseQueue()
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{
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for (ReleasableCallback* callback : m_callbackQueue)
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callback->Release();
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m_callbackQueue.clear();
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for (Releasable* releasable : m_releaseQueue)
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PlacementDestroy(releasable);
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m_releaseQueue.clear();
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for (auto& memoryblock : m_releaseMemoryPool)
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memoryblock.clear();
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}
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inline RenderDevice& RenderResources::GetRenderDevice()
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{
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return m_renderDevice;
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}
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template<typename T>
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void RenderResources::PushForRelease(T&& value)
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{
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static_assert(std::is_rvalue_reference_v<decltype(value)>);
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using ReleaseData = ReleasableData<std::remove_cv_t<std::remove_reference_t<T>>>;
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ReleaseData* releasable = Allocate<ReleaseData>();
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PlacementNew(releasable, std::forward<T>(value));
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m_releaseQueue.push_back(releasable);
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}
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template<typename F>
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void RenderResources::PushReleaseCallback(F&& callback)
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{
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using ReleaseFunctor = ReleasableLambda<std::remove_cv_t<std::remove_reference_t<F>>>;
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ReleaseFunctor* releasable = Allocate<ReleaseFunctor>();
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PlacementNew(releasable, std::forward<F>(callback));
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m_releaseQueue.push_back(releasable);
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m_callbackQueue.push_back(releasable);
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}
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template<typename T>
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T* RenderResources::Allocate()
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{
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return static_cast<T*>(Allocate(sizeof(T), alignof(T)));
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}
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void* RenderResources::Allocate(std::size_t size, std::size_t alignment)
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{
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// Try to minimize lost space
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struct
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{
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Block* block = nullptr;
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UInt64 alignedOffset = 0;
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UInt64 lostSpace = 0;
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} bestBlock;
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for (Block& block : m_releaseMemoryPool)
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{
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std::size_t freeOffset = block.size();
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UInt64 alignedOffset = Align(freeOffset, alignment);
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if (alignedOffset + size > block.capacity())
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continue; //< Not enough space
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UInt64 lostSpace = alignedOffset - freeOffset;
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if (!bestBlock.block || lostSpace < bestBlock.lostSpace)
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{
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bestBlock.block = █
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bestBlock.alignedOffset = alignedOffset;
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bestBlock.lostSpace = lostSpace;
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}
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}
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// No block found, allocate a new one
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if (!bestBlock.block)
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{
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Block newBlock;
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newBlock.reserve(BlockSize);
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bestBlock.block = &m_releaseMemoryPool.emplace_back(std::move(newBlock));
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bestBlock.alignedOffset = 0;
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bestBlock.lostSpace = 0;
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}
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Block& targetBlock = *bestBlock.block;
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targetBlock.resize(bestBlock.alignedOffset + size);
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return &targetBlock[bestBlock.alignedOffset];
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}
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template<typename T>
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RenderResources::ReleasableData<T>::ReleasableData(T&& data) :
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m_data(std::move(data))
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{
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}
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template<typename T>
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template<typename U>
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RenderResources::ReleasableLambda<T>::ReleasableLambda(U&& lambda) :
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m_lambda(std::forward<U>(lambda))
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{
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}
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template<typename T>
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void RenderResources::ReleasableLambda<T>::Release()
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{
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m_lambda();
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}
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}
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#include <Nazara/Renderer/DebugOff.hpp>
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#include "RenderResources.hpp"
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