axmol/cocos/3d/CCMeshVertexIndexData.h

/****************************************************************************
 Copyright (c) 2014-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 http://www.cocos2d-x.org

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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#pragma once

#include <string>
#include <vector>

#include "3d/CCBundle3DData.h"
#include "3d/CCAABB.h"
#include "3d/CC3DProgramInfo.h"

#include "base/CCRef.h"
#include "base/CCVector.h"
#include "math/CCMath.h"
#include "renderer/CCMeshCommand.h"


NS_CC_BEGIN

/**
 * @addtogroup _3d
 * @{
 */

class MeshVertexData;

/**
 * the MeshIndexData class.
 * @brief the MeshIndexData contain all of the indices data which mesh need.
 * @js NA
 * @lua NA
 */
class CC_DLL MeshIndexData : public Ref
{
public:
    /** create  */
    static MeshIndexData* create(const std::string& id, MeshVertexData* vertexData, backend::Buffer* indexbuffer, const AABB& aabb);
    
    /**get index buffer*/
    backend::Buffer* getIndexBuffer() const { return _indexBuffer; }

    /**get vertex buffer*/
    backend::Buffer* getVertexBuffer() const;
    
    /**get vertex data*/
    const MeshVertexData* getMeshVertexData() const { return _vertexData; }
    
    /** aabb getter and setter */
    void setAABB(const AABB& aabb) { _aabb = aabb; }
    const AABB& getAABB() const { return _aabb; }
    
    /** id setter and getter */
    void setId(const std::string& id) { _id = id; }
    const std::string& getId() const { return _id; }
    
    /**primitive type setter & getter*/
    MeshCommand::PrimitiveType getPrimitiveType() const { return _primitiveType; }
    void   setPrimitiveType(MeshCommand::PrimitiveType primitive) { _primitiveType = primitive; }
    
    void setIndexData(const MeshData::IndexArray& indexdata);
    
CC_CONSTRUCTOR_ACCESS:
    MeshIndexData();
    virtual ~MeshIndexData();
    
protected:
    backend::Buffer*    _indexBuffer = nullptr; //index buffer
    MeshVertexData*     _vertexData = nullptr; //vertex buffer, weak ref
    AABB                _aabb; // original aabb of the submesh
    std::string         _id; //id
    MeshCommand::PrimitiveType   _primitiveType = MeshCommand::PrimitiveType::TRIANGLE;
    MeshData::IndexArray _indexData;

    friend class MeshVertexData;
    friend class Sprite3D;
#if CC_ENABLE_CACHE_TEXTURE_DATA
    EventListenerCustom* _backToForegroundListener = nullptr;
#endif
};

/**
 * the MeshVertexData class.
 * @brief the MeshVertexData contain all of the vertices data which mesh need.
 */
class CC_DLL MeshVertexData : public Ref
{
    friend class Sprite3D;
    friend class Mesh;
public:
    /**create*/
    static MeshVertexData* create(const MeshData& meshdata);
    
    /** get vertexbuffer */
    backend::Buffer* getVertexBuffer() const { return _vertexBuffer; }
    
    /** get attributes count */
    ssize_t getMeshVertexAttribCount() const { return _attribs.size(); }
    
    /** get attribute by index */
    const MeshVertexAttrib& getMeshVertexAttrib(ssize_t index) const { return _attribs[index]; }
    
    /** get index data count */
    ssize_t getMeshIndexDataCount() const { return _indexs.size(); }
    /** get index data by index */
    MeshIndexData* getMeshIndexDataByIndex(int index) const { return _indexs.at(index); }
    /** get index data by id */
    MeshIndexData* getMeshIndexDataById(const std::string& id) const;
    
    ssize_t getSizePerVertex() const { return _sizePerVertex; }

    /**has vertex attribute?*/
    //TODO: will be removed!
    bool hasVertexAttrib(shaderinfos::VertexKey attrib) const;

    void setMeshData(const MeshData& meshdata);
    
CC_CONSTRUCTOR_ACCESS:
    MeshVertexData();
    virtual ~MeshVertexData();

protected:
    
    backend::Buffer* _vertexBuffer = nullptr; // vertex buffer
    ssize_t  _sizePerVertex = -1;
    Vector<MeshIndexData*> _indexs; //index data
    std::vector<MeshVertexAttrib> _attribs; //vertex attributes
    
    int _vertexCount = 0; //vertex count
    MeshData _meshData;
#if CC_ENABLE_CACHE_TEXTURE_DATA
    EventListenerCustom* _backToForegroundListener = nullptr;
#endif
};

// end of 3d group
/// @}

NS_CC_END