GraphicsMemoryBlock.h

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#pragma once
 
#include <Utility/IMoveOnly.h>
#include <Common/memory.h>
#include <Utility/TSpan.h>
 
#include <cstddef>
 
namespace ph::editor::ghi
{
 
class GraphicsMemoryBlock : private IMoveOnly
{
protected:
    GraphicsMemoryBlock();
    GraphicsMemoryBlock(GraphicsMemoryBlock&& other) noexcept;
    GraphicsMemoryBlock& operator = (GraphicsMemoryBlock&& rhs) noexcept;
 
    void setBlockSource(std::byte* source, std::size_t blockSizeInBytes);
 
    friend void swap(GraphicsMemoryBlock& first, GraphicsMemoryBlock& second) noexcept;
 
public:
    virtual ~GraphicsMemoryBlock();
 
    std::size_t numAllocatedBytes() const;
    std::size_t numUsedBytes() const;
    std::size_t numRemainingBytes() const;
 
    void clear();
 
    template<typename T, typename... Args>
    T* make(Args&&... args);
 
    template<typename T>
    TSpan<T> makeArray(std::size_t arraySize);
 
    bool hasBlockSource() const;
 
private:
    std::byte* allocRaw(std::size_t numBytes, std::size_t alignmentInBytes);
 
    std::byte* m_blockSource;
    std::size_t m_blockSizeInBytes;
    std::byte* m_ptrInBlock;
    std::size_t m_remainingBytesInBlock;
};
 
}// end namespace ph::editor::ghi
 
#include "RenderCore/Memory/GraphicsMemoryBlock.ipp"