forked from dolphin-emu/dolphin
92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
// Copyright 2010 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 <memory>
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#include <vector>
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#include "Common/CommonFuncs.h"
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#include "Common/CommonTypes.h"
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class DataReader;
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class NativeVertexFormat;
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class PointerWrap;
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struct PortableVertexDeclaration;
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enum PrimitiveType
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{
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PRIMITIVE_POINTS,
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PRIMITIVE_LINES,
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PRIMITIVE_TRIANGLES,
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};
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struct Slope
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{
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float dfdx;
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float dfdy;
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float f0;
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bool dirty;
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};
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class VertexManagerBase
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{
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private:
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// 3 pos
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static constexpr u32 SMALLEST_POSSIBLE_VERTEX = sizeof(float) * 3;
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// 3 pos, 3*3 normal, 2*u32 color, 8*4 tex, 1 posMat
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static constexpr u32 LARGEST_POSSIBLE_VERTEX = sizeof(float) * 45 + sizeof(u32) * 2;
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static constexpr u32 MAX_PRIMITIVES_PER_COMMAND = 65535;
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public:
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static constexpr u32 MAXVBUFFERSIZE =
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ROUND_UP_POW2(MAX_PRIMITIVES_PER_COMMAND * LARGEST_POSSIBLE_VERTEX);
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// We may convert triangle-fans to triangle-lists, almost 3x as many indices.
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static constexpr u32 MAXIBUFFERSIZE = ROUND_UP_POW2(MAX_PRIMITIVES_PER_COMMAND * 3);
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VertexManagerBase();
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// needs to be virtual for DX11's dtor
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virtual ~VertexManagerBase();
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DataReader PrepareForAdditionalData(int primitive, u32 count, u32 stride, bool cullall);
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void FlushData(u32 count, u32 stride);
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void Flush();
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virtual NativeVertexFormat*
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CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl) = 0;
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void DoState(PointerWrap& p);
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protected:
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virtual void vDoState(PointerWrap& p) {}
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PrimitiveType m_current_primitive_type = PrimitiveType::PRIMITIVE_POINTS;
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virtual void ResetBuffer(u32 stride) = 0;
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u8* m_cur_buffer_pointer = nullptr;
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u8* m_base_buffer_pointer = nullptr;
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u8* m_end_buffer_pointer = nullptr;
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u32 GetRemainingSize() const;
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static u32 GetRemainingIndices(int primitive);
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Slope m_zslope = {};
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void CalculateZSlope(NativeVertexFormat* format);
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bool m_cull_all = false;
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private:
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bool m_is_flushed = true;
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virtual void vFlush() = 0;
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virtual void CreateDeviceObjects() {}
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virtual void DestroyDeviceObjects() {}
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};
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extern std::unique_ptr<VertexManagerBase> g_vertex_manager;
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