obj_size.hpp

#pragma once
 
#include "DSCEngine/types/size.hpp"
 
namespace DSC
{
    enum ObjSize 
    {
        SIZE_8x8   =  0, 
        SIZE_16x16 =  1, 
        SIZE_32x32 =  2, 
        SIZE_64x64 =  3, 
        SIZE_16x8  =  4, 
        SIZE_32x8  =  5, 
        SIZE_32x16 =  6, 
        SIZE_64x32 =  7, 
        SIZE_8x16  =  8, 
        SIZE_8x32  =  9, 
        SIZE_16x32 = 10, 
        SIZE_32x64 = 11  
    };  
    
    inline static Size<int> obj_get_size(ObjSize objsize)
    {
        int val = (int)objsize;
        int shape = val/4;
        int sz = val & 3;
        
        if(shape==0)
        {
            sz = 8<<sz;
            return {sz, sz};
        }
            
        int d1 = sz<2 ? sz+1 : sz;
        int d2 = sz<1 ? sz+1 : sz;
        
        if(shape==1)
            return {8*(1<<d1), 4<<d2};
        else
            return {4<<d2, 8*(1<<d1)};      
    }   
}