dolphin/Source/Core/VideoCommon/VertexManagerBase.h

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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/CommonTypes.h"
#include "Common/MathUtil.h"
#include "VideoCommon/RenderState.h"
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#include "VideoCommon/ShaderCache.h"
class DataReader;
class NativeVertexFormat;
class PointerWrap;
struct PortableVertexDeclaration;
struct Slope
{
float dfdx;
float dfdy;
float f0;
bool dirty;
};
class VertexManagerBase
{
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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 =
MathUtil::NextPowerOf2(MAX_PRIMITIVES_PER_COMMAND * LARGEST_POSSIBLE_VERTEX);
// We may convert triangle-fans to triangle-lists, almost 3x as many indices.
static constexpr u32 MAXIBUFFERSIZE = MathUtil::NextPowerOf2(MAX_PRIMITIVES_PER_COMMAND * 3);
VertexManagerBase();
// needs to be virtual for DX11's dtor
virtual ~VertexManagerBase();
PrimitiveType GetCurrentPrimitiveType() const { return m_current_primitive_type; }
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();
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// State setters, called from register update functions.
void SetRasterizationStateChanged() { m_rasterization_state_changed = true; }
void SetDepthStateChanged() { m_depth_state_changed = true; }
void SetBlendingStateChanged() { m_blending_state_changed = true; }
void InvalidatePipelineObject()
{
m_current_pipeline_object = nullptr;
m_pipeline_config_changed = true;
}
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// Utility pipeline drawing (e.g. EFB copies, post-processing, UI).
virtual void UploadUtilityUniforms(const void* uniforms, u32 uniforms_size) = 0;
void UploadUtilityVertices(const void* vertices, u32 vertex_stride, u32 num_vertices,
const u16* indices, u32 num_indices, u32* out_base_vertex,
u32* out_base_index);
protected:
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// Vertex buffers/index buffer creation.
virtual void CreateDeviceObjects() {}
virtual void DestroyDeviceObjects() {}
// Prepares the buffer for the next batch of vertices.
virtual void ResetBuffer(u32 vertex_stride, bool cull_all) = 0;
// Commits/uploads the current batch of vertices.
virtual void CommitBuffer(u32 num_vertices, u32 vertex_stride, u32 num_indices,
u32* out_base_vertex, u32* out_base_index) = 0;
// Uploads uniform buffers for GX draws.
virtual void UploadConstants() = 0;
// Issues the draw call for the current batch in the backend.
virtual void DrawCurrentBatch(u32 base_index, u32 num_indices, u32 base_vertex) = 0;
u8* m_cur_buffer_pointer = nullptr;
u8* m_base_buffer_pointer = nullptr;
u8* m_end_buffer_pointer = nullptr;
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u32 GetRemainingSize() const;
static u32 GetRemainingIndices(int primitive);
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Slope m_zslope = {};
void CalculateZSlope(NativeVertexFormat* format);
VideoCommon::GXPipelineUid m_current_pipeline_config;
VideoCommon::GXUberPipelineUid m_current_uber_pipeline_config;
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const AbstractPipeline* m_current_pipeline_object = nullptr;
PrimitiveType m_current_primitive_type = PrimitiveType::Points;
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bool m_pipeline_config_changed = true;
bool m_rasterization_state_changed = true;
bool m_depth_state_changed = true;
bool m_blending_state_changed = true;
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;
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void UpdatePipelineConfig();
void UpdatePipelineObject();
};
extern std::unique_ptr<VertexManagerBase> g_vertex_manager;