what's up with square files?

This is a discussion on what's up with square files? within the A Brief History of Cprogramming.com forums, part of the Community Boards category; I was just thinking, I was looking at someone's pic thing that we all get, the avatar, and i noticed ...

  1. #1
    Software Developer jverkoey's Avatar
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    Lightbulb what's up with square files?

    I was just thinking, I was looking at someone's pic thing that we all get, the avatar, and i noticed they've got little notches on the four corners, so it's kinda like so:

    Code:
       __________
      /          \
     /            \
    |             |
    |             |
    |             |
    |             |
    |             |
     \            /
      \__________/
    -finally got those dang dimensions right, i hate these stupid spaces...

    and you see all that extra space there? imagine the picture was blown up a couple 1000 times, and those white spaces would then take up a LOT of space.

    Well, just a thought, I wonder if in the future if we will ever have "amorpheus" files. For instance, the file above wouldn't be a block, it would actually be molded around the data, and the blank space wouldn't be anything.......

    say you had a picture of a diamond with a corner in the middle of each side, with the normal file system, you'd have to waste ALL that space in the corners for nothing, whereas in the amorpheus system, it would just mold itself around the file's data, saving twice as much space almost!

    just my two cents....
    Last edited by jverkoey; 03-15-2003 at 11:29 PM.

  2. #2
    Registered User Scourfish's Avatar
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    many picture formats already have transparent blitting
    -486SX-20
    -Some random Debian Distro
    -Some version of MS-Dos
    -Day of the Tentacle

  3. #3
    Confused Magos's Avatar
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    I believe his point was, if you have a picture of a triangle, half of the picture contains the graphics and the other half is transparent, but still uses space in the bitmap. If a new filesystem was invented that, somehow, only stores the graphics data and not the transparent parts, you could save some filesize.
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  4. #4
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    one way would be to include the co ordinates of every pixel in its block
    Code:
    Color    Co Ordinates
    04h 08h  01h 00h 01h 00h
    but that would actually take up a lot more space than a bitmap. Another way, and perhaps the best way, would be to include some kind of shape definition in the header of the file.

  5. #5
    C++ Developer XSquared's Avatar
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    Try looking up vector graphics on google.
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  6. #6
    ! |-| /-\ +3 1337 Yawgmoth's Avatar
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    Another way, and perhaps the best way, would be to include some kind of shape definition in the header of the file.
    But that would only work with a predefined set of shapes. Anyway, with memory/storage so plentiful, we don't need to worry too much about wasted data.

    It's still a cool idea.
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  7. #7
    It's full of stars adrianxw's Avatar
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    >>> with memory/storage so plentiful, we don't need to worry too much about wasted data.

    I think the important point is not local storage, but bandwidth during transmission. Poor example I agree, (I wouldn't send such a thing as a bitmap), but assume I want to send you a bitmap which is 100x100 and contains one blue pixel, and the rest are transparent.
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  8. #8
    C++ Developer XSquared's Avatar
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    >>assume I want to send you a bitmap which is 100x100 and contains one blue pixel, and the rest are transparent.

    Here you go. Photoshop compressed it down to 158 bytes.
    Attached Images Attached Images  
    Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah

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  9. #9
    It's full of stars adrianxw's Avatar
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    >>>Poor example I agree, (I wouldn't send such a thing as a bitmap), but assume

    ... yawn.
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