dolphin/Source/Core/VideoCommon/VertexLoaderBase.h

93 lines
2.1 KiB
C++

// Copyright 2014 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include <string>
#include "Common/CommonTypes.h"
#include "VideoCommon/CPMemory.h"
#include "VideoCommon/NativeVertexFormat.h"
class DataReader;
class VertexLoaderUID
{
std::array<u32, 5> vid;
size_t hash;
public:
VertexLoaderUID() {}
VertexLoaderUID(const TVtxDesc& vtx_desc, const VAT& vat)
{
vid[0] = vtx_desc.Hex & 0xFFFFFFFF;
vid[1] = vtx_desc.Hex >> 32;
vid[2] = vat.g0.Hex;
vid[3] = vat.g1.Hex;
vid[4] = vat.g2.Hex;
hash = CalculateHash();
}
bool operator==(const VertexLoaderUID& rh) const { return vid == rh.vid; }
size_t GetHash() const { return hash; }
private:
size_t CalculateHash() const
{
size_t h = SIZE_MAX;
for (auto word : vid)
{
h = h * 137 + word;
}
return h;
}
};
namespace std
{
template <>
struct hash<VertexLoaderUID>
{
size_t operator()(const VertexLoaderUID& uid) const { return uid.GetHash(); }
};
}
class VertexLoaderBase
{
public:
static std::unique_ptr<VertexLoaderBase> CreateVertexLoader(const TVtxDesc& vtx_desc,
const VAT& vtx_attr);
virtual ~VertexLoaderBase() {}
virtual int RunVertices(DataReader src, DataReader dst, int count) = 0;
virtual bool IsInitialized() = 0;
// For debugging / profiling
std::string ToString() const;
virtual std::string GetName() const = 0;
// per loader public state
int m_VertexSize = 0; // number of bytes of a raw GC vertex
PortableVertexDeclaration m_native_vtx_decl{};
u32 m_native_components = 0;
// used by VertexLoaderManager
NativeVertexFormat* m_native_vertex_format = nullptr;
int m_numLoadedVertices = 0;
protected:
VertexLoaderBase(const TVtxDesc& vtx_desc, const VAT& vtx_attr);
void SetVAT(const VAT& vat);
// GC vertex format
TVtxAttr m_VtxAttr; // VAT decoded into easy format
TVtxDesc m_VtxDesc; // Not really used currently - or well it is, but could be easily avoided.
VAT m_vat;
};