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