dolphin/Source/Core/VideoCommon/IndexGenerator.h

36 lines
958 B
C++

// Copyright 2008 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.
#pragma once
#include <array>
#include "Common/CommonTypes.h"
class IndexGenerator
{
public:
void Init();
void Start(u16* index_ptr);
void AddIndices(int primitive, u32 num_vertices);
void AddExternalIndices(const u16* indices, u32 num_indices, u32 num_vertices);
// returns numprimitives
u32 GetNumVerts() const { return m_base_index; }
u32 GetIndexLen() const { return static_cast<u32>(m_index_buffer_current - m_base_index_ptr); }
u32 GetRemainingIndices() const;
private:
u16* m_index_buffer_current = nullptr;
u16* m_base_index_ptr = nullptr;
u32 m_base_index = 0;
using PrimitiveFunction = u16* (*)(u16*, u32, u32);
std::array<PrimitiveFunction, 8> m_primitive_table{};
};