YiMesh.h

Go to the documentation of this file.

// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_MESH_H_
#define _YI_MESH_H_

#include "asset/YiAssetBufferObjectData.h"
#include "binding/YiScriptableObject.h"
#include "scenetree/YiAABB.h"

#include <glm/mat4x4.hpp>

#include <memory>

class CYIMesh : public CYIScriptableObject
{
public:
    enum YI_GEOMETRY_PRIMITIVE 
    {
        YI_TRIANGLES,
        YI_TRIANGLE_STRIP,
        YI_POINTS
    };


    enum YI_BUFFER_OWNERSHIP
    {
        YI_BUFFER_OWNED,
        YI_BUFFER_SHARED
    };

    struct YI_ATTRIBUTE_BINDING
    {
        uint32_t uBufferIndex;
        uint32_t uAttribute;
        uint32_t uNumElements;
        uint32_t uStride;
        uint32_t uByteOffset;
    };


    static const uint32_t YI_POSITION = 0; 
    static const uint32_t YI_TEXCOORD = 1; 
    static const uint32_t YI_NORMAL = 2; 
    static const uint32_t YI_COLOR = 3; 

    CYIMesh();
    virtual ~CYIMesh();

    void SetTransform(const glm::mat4 &transform);

    const glm::mat4 &GetTransform() const;

    uint32_t AddVertexBuffer(const std::shared_ptr<CYIAssetBufferObjectData> &pData, YI_BUFFER_OWNERSHIP ownership);

    void SetIndexBuffer(const std::shared_ptr<CYIAssetBufferObjectData> &pData, YI_BUFFER_OWNERSHIP ownership);

    void SetBindings(const std::vector<YI_ATTRIBUTE_BINDING> &bindings);

    const std::vector<YI_ATTRIBUTE_BINDING> &GetBindings() const;

    void SetAxisAlignedBoundingBox(const CYIAABB &aabb);

    const CYIAABB &GetAxisAlignedBoundingBox() const;

    const std::shared_ptr<CYIAssetBufferObjectData> &GetVertexBuffer(uint32_t uBufferIndex) const;

    const std::shared_ptr<CYIAssetBufferObjectData> &GetIndexBuffer() const;

    void RemoveVertexBuffer(uint32_t uBufferIndex);

    void RemoveIndexBuffer();

    const YI_ATTRIBUTE_BINDING &GetBinding(uint32_t uBindingIndex);

    uint32_t GetNumVertexBuffers() const;

    uint32_t GetNumBindings() const;

    void SetPrimitive(YI_GEOMETRY_PRIMITIVE primitive);

    YI_GEOMETRY_PRIMITIVE GetPrimitive() const;

    uint32_t GetIndexCount() const;

    void SetIndexCount(uint32_t count);

    uint32_t GetStartOffset() const;

    void SetStartOffset(uint32_t uStartOffset);

    void SetDepthTesting(bool bEnabled);

    bool GetDepthTesting() const;

    bool IsLoaded() const;

protected:
    std::vector<std::shared_ptr<CYIAssetBufferObjectData>> m_VBOs;
    std::shared_ptr<CYIAssetBufferObjectData> m_IBO;
    std::vector<YI_ATTRIBUTE_BINDING> m_Attributes;
    YI_GEOMETRY_PRIMITIVE m_primitive;
    uint32_t m_indexCount;
    uint32_t m_uStartOffset;
    glm::mat4 m_transform;
    CYIAABB m_AABB;
    bool m_bHasDepth;
    std::vector<YI_BUFFER_OWNERSHIP> m_VBOOwnership;
    YI_BUFFER_OWNERSHIP m_IBOOwnership;
    mutable bool m_bIsLoaded;
};

#endif // _YI_MESH_H_