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// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <cstring>
#include <functional> // for hash
#include "Common/CommonTypes.h"
#include "Common/Hash.h"
// m_components
enum
{
VB_HAS_POSMTXIDX = (1 << 1),
VB_HAS_TEXMTXIDX0 = (1 << 2),
VB_HAS_TEXMTXIDX1 = (1 << 3),
VB_HAS_TEXMTXIDX2 = (1 << 4),
VB_HAS_TEXMTXIDX3 = (1 << 5),
VB_HAS_TEXMTXIDX4 = (1 << 6),
VB_HAS_TEXMTXIDX5 = (1 << 7),
VB_HAS_TEXMTXIDX6 = (1 << 8),
VB_HAS_TEXMTXIDX7 = (1 << 9),
VB_HAS_TEXMTXIDXALL = (0xff << 2),
// VB_HAS_POS=0, // Implied, it always has pos! don't bother testing
VB_HAS_NRM0 = (1 << 10),
VB_HAS_NRM1 = (1 << 11),
VB_HAS_NRM2 = (1 << 12),
VB_HAS_NRMALL = (7 << 10),
VB_COL_SHIFT = 13,
VB_HAS_COL0 = (1 << 13),
VB_HAS_COL1 = (1 << 14),
VB_HAS_UV0 = (1 << 15),
VB_HAS_UV1 = (1 << 16),
VB_HAS_UV2 = (1 << 17),
VB_HAS_UV3 = (1 << 18),
VB_HAS_UV4 = (1 << 19),
VB_HAS_UV5 = (1 << 20),
VB_HAS_UV6 = (1 << 21),
VB_HAS_UV7 = (1 << 22),
VB_HAS_UVALL = (0xff << 15),
VB_HAS_UVTEXMTXSHIFT = 13,
};
enum VarType
{
VAR_UNSIGNED_BYTE, // GX_U8 = 0
VAR_BYTE, // GX_S8 = 1
VAR_UNSIGNED_SHORT, // GX_U16 = 2
VAR_SHORT, // GX_S16 = 3
VAR_FLOAT, // GX_F32 = 4
};
struct AttributeFormat
{
VarType type;
int components;
int offset;
bool enable;
bool integer;
};
struct PortableVertexDeclaration
{
int stride;
AttributeFormat position;
AttributeFormat normals[3];
AttributeFormat colors[2];
AttributeFormat texcoords[8];
AttributeFormat posmtx;
inline bool operator<(const PortableVertexDeclaration& b) const
{
return memcmp(this, &b, sizeof(PortableVertexDeclaration)) < 0;
}
inline bool operator==(const PortableVertexDeclaration& b) const
{
return memcmp(this, &b, sizeof(PortableVertexDeclaration)) == 0;
}
};
namespace std
{
template <>
struct hash<PortableVertexDeclaration>
{
size_t operator()(const PortableVertexDeclaration& decl) const
{
return Common::HashFletcher(reinterpret_cast<const u8*>(&decl), sizeof(decl));
}
};
} // namespace std
// The implementation of this class is specific for GL/DX, so NativeVertexFormat.cpp
// is in the respective backend, not here in VideoCommon.
// Note that this class can't just invent arbitrary vertex formats out of its input -
// all the data loading code must always be made compatible.
class NativeVertexFormat
{
public:
NativeVertexFormat(const PortableVertexDeclaration& vtx_decl) : m_decl(vtx_decl) {}
virtual ~NativeVertexFormat() {}
NativeVertexFormat(const NativeVertexFormat&) = delete;
NativeVertexFormat& operator=(const NativeVertexFormat&) = delete;
NativeVertexFormat(NativeVertexFormat&&) = default;
NativeVertexFormat& operator=(NativeVertexFormat&&) = default;
u32 GetVertexStride() const { return m_decl.stride; }
const PortableVertexDeclaration& GetVertexDeclaration() const { return m_decl; }
protected:
PortableVertexDeclaration m_decl;
};
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