YiUniformBufferId.h

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

#include "framework/YiPredef.h"
#include "utility/YiString.h"

#include <limits>

class CYIUniformBufferId
{
public:
    CYIUniformBufferId() :
        m_nID(std::numeric_limits<uint32_t>::max()) {}
    const CYIString &GetUniformName() const;

    uint32_t GetID() const;

    bool operator<(const CYIUniformBufferId& uniformBufferId) const;

    bool operator==(const CYIUniformBufferId& uniformBufferId) const;

    bool operator!=(const CYIUniformBufferId& uniformBufferId) const;

    static CYIUniformBufferId Generate(const char *uniformName);

    static void Init();

    static const CYIUniformBufferId              s_YiMatricesID;
    static const CYIUniformBufferId              s_YiNormalMatrixID;
    static const CYIUniformBufferId              s_YiMVMatrixID;
    static const CYIUniformBufferId              s_YiMVPMatrixID;
    static const CYIUniformBufferId              s_YiCameraMatrixID;
    static const CYIUniformBufferId              s_YiModelMatrixID;
    static const CYIUniformBufferId              s_YiMeshMatrixID;
    static const CYIUniformBufferId              s_YiAlphaID;
    static const CYIUniformBufferId              s_YiColorID;
    static const CYIUniformBufferId              s_YiViewportSizeID;
    static       std::vector<CYIUniformBufferId> s_YiTextureID;
    static       std::vector<CYIUniformBufferId> s_YiTextureMatrixID;

private:

    explicit CYIUniformBufferId(uint32_t m_nID);

    // place holder for memory management of our strings
    static std::vector<CYIString> &GetUniformBufferStringStore();

    uint32_t m_nID;
};


inline const CYIString &CYIUniformBufferId::GetUniformName() const
{
    return GetUniformBufferStringStore()[m_nID];
}

inline uint32_t CYIUniformBufferId::GetID() const
{
    return m_nID;
}

inline bool CYIUniformBufferId::operator<(const CYIUniformBufferId& uniformBufferId) const
{
    return m_nID < uniformBufferId.m_nID;
}

inline bool CYIUniformBufferId::operator==(const CYIUniformBufferId& uniformBufferId) const
{
    return m_nID == uniformBufferId.m_nID;
}

inline bool CYIUniformBufferId::operator!=(const CYIUniformBufferId& uniformBufferId) const
{
    return m_nID != uniformBufferId.m_nID;
}

#endif // _YI_UNIFORM_BUFFER_ID_H_