dolphin/Source/Core/VideoCommon/IndexGenerator.h

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// Copyright 2008 Dolphin Emulator Project
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// 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.
#pragma once
#include "Common/CommonTypes.h"
class IndexGenerator
{
public:
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// Init
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static void Init();
static void Start(u16* Indexptr);
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static void AddIndices(int primitive, u32 numVertices);
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static void AddExternalIndices(const u16* indices, u32 num_indices, u32 num_vertices);
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// returns numprimitives
static u32 GetNumVerts() { return base_index; }
static u32 GetIndexLen() { return (u32)(index_buffer_current - BASEIptr); }
static u32 GetRemainingIndices();
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private:
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// Triangles
template <bool pr>
static u16* AddList(u16* Iptr, u32 numVerts, u32 index);
template <bool pr>
static u16* AddStrip(u16* Iptr, u32 numVerts, u32 index);
template <bool pr>
static u16* AddFan(u16* Iptr, u32 numVerts, u32 index);
template <bool pr>
static u16* AddQuads(u16* Iptr, u32 numVerts, u32 index);
template <bool pr>
static u16* AddQuads_nonstandard(u16* Iptr, u32 numVerts, u32 index);
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// Lines
static u16* AddLineList(u16* Iptr, u32 numVerts, u32 index);
static u16* AddLineStrip(u16* Iptr, u32 numVerts, u32 index);
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// Points
static u16* AddPoints(u16* Iptr, u32 numVerts, u32 index);
template <bool pr>
static u16* WriteTriangle(u16* Iptr, u32 index1, u32 index2, u32 index3);
static u16* index_buffer_current;
static u16* BASEIptr;
static u32 base_index;
};