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35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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// This is currently only used by the DX backend, but it may make sense to
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// use it in the GL backend or a future DX10 backend too.
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#pragma once
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#include "Common/CommonTypes.h"
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#include "Common/EnumMap.h"
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#include "VideoCommon/OpcodeDecoding.h"
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class IndexGenerator
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{
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public:
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void Init();
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void Start(u16* index_ptr);
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void AddIndices(OpcodeDecoder::Primitive primitive, u32 num_vertices);
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void AddExternalIndices(const u16* indices, u32 num_indices, u32 num_vertices);
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// returns numprimitives
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u32 GetNumVerts() const { return m_base_index; }
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u32 GetIndexLen() const { return static_cast<u32>(m_index_buffer_current - m_base_index_ptr); }
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u32 GetRemainingIndices(OpcodeDecoder::Primitive primitive) const;
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private:
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u16* m_index_buffer_current = nullptr;
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u16* m_base_index_ptr = nullptr;
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u32 m_base_index = 0;
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using PrimitiveFunction = u16* (*)(u16*, u32, u32);
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Common::EnumMap<PrimitiveFunction, OpcodeDecoder::Primitive::GX_DRAW_POINTS> m_primitive_table{};
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};
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