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// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <vector>
#include "Common/CommonFuncs.h"
#include "Common/CommonTypes.h"
class DataReader;
class NativeVertexFormat;
class PointerWrap;
struct PortableVertexDeclaration;
enum PrimitiveType
{
PRIMITIVE_POINTS,
PRIMITIVE_LINES,
PRIMITIVE_TRIANGLES,
};
struct Slope
{
float dfdx;
float dfdy;
float f0;
bool dirty;
};
class VertexManagerBase
{
private:
// 3 pos
static constexpr u32 SMALLEST_POSSIBLE_VERTEX = sizeof(float) * 3;
// 3 pos, 3*3 normal, 2*u32 color, 8*4 tex, 1 posMat
static constexpr u32 LARGEST_POSSIBLE_VERTEX = sizeof(float) * 45 + sizeof(u32) * 2;
static constexpr u32 MAX_PRIMITIVES_PER_COMMAND = 65535;
public:
static constexpr u32 MAXVBUFFERSIZE =
ROUND_UP_POW2(MAX_PRIMITIVES_PER_COMMAND * LARGEST_POSSIBLE_VERTEX);
// We may convert triangle-fans to triangle-lists, almost 3x as many indices.
static constexpr u32 MAXIBUFFERSIZE = ROUND_UP_POW2(MAX_PRIMITIVES_PER_COMMAND * 3);
VertexManagerBase();
// needs to be virtual for DX11's dtor
virtual ~VertexManagerBase();
DataReader PrepareForAdditionalData(int primitive, u32 count, u32 stride, bool cullall);
void FlushData(u32 count, u32 stride);
void Flush();
virtual std::unique_ptr<NativeVertexFormat>
CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl) = 0;
void DoState(PointerWrap& p);
std::pair<size_t, size_t> ResetFlushAspectRatioCount();
protected:
virtual void vDoState(PointerWrap& p) {}
PrimitiveType m_current_primitive_type = PrimitiveType::PRIMITIVE_POINTS;
virtual void ResetBuffer(u32 stride) = 0;
u8* m_cur_buffer_pointer = nullptr;
u8* m_base_buffer_pointer = nullptr;
u8* m_end_buffer_pointer = nullptr;
u32 GetRemainingSize() const;
static u32 GetRemainingIndices(int primitive);
Slope m_zslope = {};
void CalculateZSlope(NativeVertexFormat* format);
bool m_cull_all = false;
private:
bool m_is_flushed = true;
size_t m_flush_count_4_3 = 0;
size_t m_flush_count_anamorphic = 0;
virtual void vFlush() = 0;
virtual void CreateDeviceObjects() {}
virtual void DestroyDeviceObjects() {}
};
extern std::unique_ptr<VertexManagerBase> g_vertex_manager;
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