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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
// This is currently only used by the DX backend, but it may make sense to
// use it in the GL backend or a future DX10 backend too.
#ifndef _INDEXGENERATOR_H
#define _INDEXGENERATOR_H
#include "CommonTypes.h"
class IndexGenerator
{
public:
// Init
static void Init();
static void Start(u16 *Triangleptr,u16 *Lineptr,u16 *Pointptr);
static void AddIndices(int primitive, u32 numVertices);
// Interface
static u32 GetNumTriangles() {return numT;}
static u32 GetNumLines() {return numL;}
static u32 GetNumPoints() {return numP;}
// returns numprimitives
static u32 GetNumVerts() {return index;}
static u32 GetTriangleindexLen() {return (u32)(Tptr - BASETptr);}
static u32 GetLineindexLen() {return (u32)(Lptr - BASELptr);}
static u32 GetPointindexLen() {return (u32)(Pptr - BASEPptr);}
static u32 GetRemainingIndices();
/*
enum IndexPrimitiveType
{
Prim_None = 0,
Prim_List,
Prim_Strip,
Prim_Fan
};
*/
private:
// Triangles
template <bool pr> static void AddList(u32 numVerts);
template <bool pr> static void AddStrip(u32 numVerts);
template <bool pr> static void AddFan(u32 numVerts);
template <bool pr> static void AddQuads(u32 numVerts);
// Lines
static void AddLineList(u32 numVerts);
static void AddLineStrip(u32 numVerts);
// Points
static void AddPoints(u32 numVerts);
template <bool pr> static void WriteTriangle(u32 index1, u32 index2, u32 index3);
static u16 *Tptr;
static u16 *BASETptr;
static u16 *Lptr;
static u16 *BASELptr;
static u16 *Pptr;
static u16 *BASEPptr;
// TODO: redundant variables
static u32 numT;
static u32 numL;
static u32 numP;
static u32 index;
};
#endif // _INDEXGENERATOR_H
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