StreamBase.h

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#pragma once
 
#include "RE/E/ErrorCodes.h"
#include "RE/M/MemoryManager.h"
 
namespace RE
{
    namespace BSResource
    {
        struct Info;
 
        class StreamBase
        {
        public:
            inline static constexpr auto RTTI = RTTI_BSResource__StreamBase;
            inline static constexpr auto VTABLE = VTABLE_BSResource__StreamBase;
 
            enum : std::uint32_t
            {
                kWritable = 1 << 0,
                kRefCountBeg = 0x1000,
                kRefCountMask = (std::uint32_t)0xFFFFF000
            };
 
            StreamBase();
            StreamBase(const StreamBase& a_rhs);
            StreamBase(StreamBase&& a_rhs);
            StreamBase(std::uint32_t a_totalSize);
            virtual ~StreamBase() = default;  // 00
 
            // add
            virtual ErrorCode                   DoOpen() = 0;             // 01
            virtual void                        DoClose() = 0;            // 02
            [[nodiscard]] virtual std::uint64_t DoGetKey() const;         // 03 - { return 0; }
            virtual ErrorCode                   DoGetInfo(Info& a_info);  // 04 - { return ErrorCode::kUnsupported; }
 
            TES_HEAP_REDEFINE_NEW();
 
            std::uint32_t      DecRef();
            std::uint32_t      IncRef();
            [[nodiscard]] bool IsWritable() const;
 
            // members
            std::uint32_t totalSize;  // 08
#ifdef SKYRIM_SUPPORT_AE
            std::uint32_t unk0C;  // 0C
#endif
            std::uint32_t flags;  // 10
        };
#ifdef SKYRIM_SUPPORT_AE
        static_assert(sizeof(StreamBase) == 0x18);
#else
        static_assert(sizeof(StreamBase) == 0x10);
#endif
    }
}