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The basic principle of how displays work

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  • 13-06-2016 9:06pm
    #1
    Labarbapostiza
    Banned (with Prison Access) Posts: 963 ✭✭✭


    I have a basic idea in how graphics are display on a monitor, but I'm getting bogged down looking for conformation.

    How I think they work is there are two arrays containing the entire screen.

    The program that writes directly to the physical screen, just runs down through the array, drawing line by line. When it finishes it jumps to the top of the array, and repeats the cycle.

    Changes to graphics on screen are written to the array not currently being read for display.

    And a program, intermittently switches the pointer the display program always jumps to on completion of writing the screen. So both arrays get displayed.

    Is this how it works, or am I missing something?


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