Class DrawListItemRenderState

Hydrogent/src/HnRenderPass.cpp:701–733

    }

    struct DrawListItemRenderState
    {
        const DrawListItem& Item;
        mutable size_t      Hash = 0;

        struct Hasher
        {
            size_t operator()(const DrawListItemRenderState& State) const
            {
                if (State.Hash == 0)
                {
                    State.Hash = ComputeHash(State.Item.pPSO,
                                             State.Item.IndexBuffer,
                                             State.Item.NumVertexBuffers,
                                             State.Item.Material.GetSRB());
                    for (Uint32 i = 0; i < State.Item.NumVertexBuffers; ++i)
                    {
                        HashCombine(State.Hash, State.Item.VertexBuffers[i]);
                    }
                }
                return State.Hash;
            }
        };

        bool operator==(const DrawListItemRenderState& rhs) const
        {
            return (Item.pPSO == rhs.Item.pPSO &&
                    Item.IndexBuffer == rhs.Item.IndexBuffer &&
                    Item.NumVertexBuffers == rhs.Item.NumVertexBuffers &&
                    Item.Material.GetSRB() == rhs.Item.Material.GetSRB() &&
                    Item.VertexBuffers == rhs.Item.VertexBuffers);
        }
    };
    std::unordered_map<DrawListItemRenderState, Uint32, DrawListItemRenderState::Hasher> DrawListItemRenderStateIDs;

    bool DrawListDirty = false;