How to easy create and init a large array? Its have values

[Angluca]

Must use copyMem when I create and init it, Very troublesome
    
    
    const
      ATLAS_WIDTH = 128
      ATLAS_HEIGHT = 128
    
    var atlas_texture : array[ATLAS_WIDTH * ATLAS_HEIGHT, byte]
    let atlas_texture_src = [ # it only 128 * 120 byte
      0x00.byte, 0x00, 0x22, 0x11, 0x00, 0x33, 0x11, 0x22, ... ]
    copyMem(atlas_texture[0].addr, atlas_texture_src[0].addr, 
atlas_texture_src.len)
    
    
    
    Run

Want easy init T_T like this
    
    
    var atlas_texture : array[ATLAS_WIDTH * ATLAS_HEIGHT, byte] = [  0x0 ... # 
these val only 128 * 120, hope after val all 0x0 ]
    ]
    
    
    Run

2nd question: Some c function is
    
    
    void pp(const int* x) # pp( (int[]){11, 22, 33} )
    
    
    Run

generator nim is
    
    
    proc pp(x: ptr int)
    
    # if want use it must
    var a = [11.int,22,33]
    pp( cast[ptr int](a[0].addr)
    
    # I want easy, so test some type but all error
    pp ([11.int, 22, 33])
    # proc pp(nz: openArray[int])
    # proc pp(nz: UncheckedArray[int])
    # proc pp(nz: array[0..0, int])
    
    #only use them ok, but array haven't easy way to determine, must use 
array|seq[int], why can't use array[int] or UncheckArray[int]
    # proc pp(nz: array|seq[int]) # ok
    
    # now I write tempate use this func, It's ok, I think is best way
    template pp(nz: untyped) =
       let t = nz
       pp(cast[ptr int](t[0].addr)
    # but more c libs too large not suitable for manual alteration, I've use 
converter, but converter have bug, can't use ptr type, if have ptr myint, cant 
converter
    
    
    Run

Who can tell me have a good idea?

<https://github.com/Angluca/mui/blob/master/mui.nim#L287>

<https://github.com/Angluca/mui/blob/master/demo/mui-sokol/main.nim#L117>

<https://github.com/Angluca/mui/blob/master/demo/mui-sokol/atlas.nim#L11>

I'm a newbie holp nim can directly use c code, not need c2nim convert *.c ( T_T 
Maybe I'm a slacker)