92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <memory>
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#include <string>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "VideoCommon/CPMemory.h"
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#include "VideoCommon/NativeVertexFormat.h"
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class DataReader;
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class VertexLoaderUID
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{
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std::array<u32, 5> vid;
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size_t hash;
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public:
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VertexLoaderUID() {}
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VertexLoaderUID(const TVtxDesc& vtx_desc, const VAT& vat)
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{
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vid[0] = vtx_desc.GetLegacyHex0();
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vid[1] = vtx_desc.GetLegacyHex1();
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vid[2] = vat.g0.Hex;
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vid[3] = vat.g1.Hex;
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vid[4] = vat.g2.Hex;
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hash = CalculateHash();
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}
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bool operator==(const VertexLoaderUID& rh) const { return vid == rh.vid; }
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size_t GetHash() const { return hash; }
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private:
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size_t CalculateHash() const
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{
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size_t h = SIZE_MAX;
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for (auto word : vid)
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{
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h = h * 137 + word;
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}
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return h;
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}
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};
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namespace std
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{
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template <>
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struct hash<VertexLoaderUID>
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{
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size_t operator()(const VertexLoaderUID& uid) const { return uid.GetHash(); }
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};
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} // namespace std
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class VertexLoaderBase
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{
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public:
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static u32 GetVertexSize(const TVtxDesc& vtx_desc, const VAT& vtx_attr);
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static u32 GetVertexComponents(const TVtxDesc& vtx_desc, const VAT& vtx_attr);
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static std::vector<u32> GetVertexComponentSizes(const TVtxDesc& vtx_desc, const VAT& vtx_attr);
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static std::unique_ptr<VertexLoaderBase> CreateVertexLoader(const TVtxDesc& vtx_desc,
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const VAT& vtx_attr);
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virtual ~VertexLoaderBase() {}
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virtual int RunVertices(DataReader src, DataReader dst, int count) = 0;
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// per loader public state
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PortableVertexDeclaration m_native_vtx_decl{};
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const u32 m_vertex_size; // number of bytes of a raw GC vertex
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const u32 m_native_components;
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// used by VertexLoaderManager
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NativeVertexFormat* m_native_vertex_format = nullptr;
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int m_numLoadedVertices = 0;
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protected:
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VertexLoaderBase(const TVtxDesc& vtx_desc, const VAT& vtx_attr)
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: m_VtxDesc{vtx_desc}, m_VtxAttr{vtx_attr}, m_vertex_size{GetVertexSize(vtx_desc, vtx_attr)},
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m_native_components{GetVertexComponents(vtx_desc, vtx_attr)}
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{
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}
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// GC vertex format
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const VAT m_VtxAttr;
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const TVtxDesc m_VtxDesc;
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};
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