ShaderVariable.hpp

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#pragma once
 
 
namespace TeaPacket::Graphics
{
 
    class Texture;

    enum ShaderVariableBaseType : unsigned char
    {
        SHADER_VAR_TYPE_FLOAT,  
        SHADER_VAR_TYPE_INT,    
        SHADER_VAR_TYPE_UINT,    
        SHADER_VAR_TYPE_TEXTURE, 
    };
 
    union ShaderVariableValue
    {
        float f;
        signed int i;
        unsigned int ui;
        Texture* tex;
    };


    struct ShaderVariableType
    {
        ShaderVariableBaseType type;
        unsigned char amount;
 
        constexpr ShaderVariableType():type(static_cast<ShaderVariableBaseType>(0)), amount(0) {}
        constexpr ShaderVariableType(ShaderVariableBaseType type, unsigned char amount) : type(type), amount(amount){}
    };
 
    struct ShaderVariable
    {
        ShaderVariableType type;
        ShaderVariableValue value;
 
        ShaderVariable(){}
        ShaderVariable(ShaderVariableBaseType type, unsigned char amount) : type(ShaderVariableType(type, amount)){}
    };
}