EDataType.h

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//  -------------------------------------------------------------------------
//  Copyright (C) 2017 BMW Car IT GmbH
//  -------------------------------------------------------------------------
//  This Source Code Form is subject to the terms of the Mozilla Public
//  License, v. 2.0. If a copy of the MPL was not distributed with this
//  file, You can obtain one at https://mozilla.org/MPL/2.0/.
//  -------------------------------------------------------------------------
 
#ifndef RAMSES_EDATATYPE_H
#define RAMSES_EDATATYPE_H
#include <cstdint> // for integer datatypes
#include <stddef.h> // for size_t
 
namespace ramses
{
    enum class EDataType
    {
        UInt16 = 0, 
        UInt32,     
        Float,      
        Vector2F,   
        Vector3F,   
        Vector4F,   
        ByteBlob,   
    };
 
    constexpr size_t GetNumberOfComponents(EDataType dataType)
    {
        return (dataType == EDataType::UInt16) ? 1u :
            (dataType == EDataType::UInt32) ? 1u :
            (dataType == EDataType::Float) ? 1u :
            (dataType == EDataType::Vector2F) ? 2u :
            (dataType == EDataType::Vector3F) ? 3u :
            (dataType == EDataType::Vector4F) ? 4u :
            (dataType == EDataType::ByteBlob) ? 1u : 0u;
    }
 
    constexpr size_t GetSizeOfComponent(EDataType dataType)
    {
        return (dataType == EDataType::Float) ? sizeof(float) :
            (dataType == EDataType::UInt16) ? sizeof(uint16_t) :
            (dataType == EDataType::UInt32) ? sizeof(uint32_t) :
            (dataType == EDataType::Vector2F) ? sizeof(float) :
            (dataType == EDataType::Vector3F) ? sizeof(float) :
            (dataType == EDataType::Vector4F) ? sizeof(float) :
            (dataType == EDataType::ByteBlob) ? 1u : 0u;
    }
 
    constexpr size_t GetSizeOfDataType(EDataType dataType)
    {
        return GetNumberOfComponents(dataType) * GetSizeOfComponent(dataType);
    }
}
 
#endif