I want to display an image in an MD game using Lua. How can I do this?

[uname1able]

my code ,
scr = manager.machine.screens[":megadriv"]
local alpha = 255
local red = 255
local green = 0
local blue = 0

    local red_color = (alpha << 24) | (red << 16) | (green << 8) | blue
    for x = 0, 256 - 1 do
        for y = 0, 256 - 1 do
            scr:draw_line(x, y, x+0.5, y,red_color) -- 0xFFFF0000 -- **this color  data will get from pic data matrix** 
        end 
    end 

i want implent read ./1.png -> scr:draw??(x,y,x0,y0) show pics

how can i do this,please give me some code or suggestions, thank you very much!

[cuavas]

• Read the file into a bitmap using emu.bitmap_argb32.load(...).
• Create a texture referencing the bitmap using manager.machine.render:texture_alloc(...).
• Use draw_quad(...) on a render container to draw the texture.