Screenshot of game 6.5MB Really?

Discussion in 'iPhone' started by TJ82, Dec 16, 2014.

  1. TJ82 macrumors 6502

    Joined:
    Mar 8, 2012
    #1
    Just noticed this now. I was trying to show a friend what a game was like (Oceanhorn, it's on sale today by the way) so took a screenshot to send them in chat (WeChat).

    I clicked send full image and it said it was 6.5MB.

    Does that not seem a tad large for a phone screenshot of a game? Or am I behind the curve on this?
     
  2. lakaiordie macrumors 65816

    Joined:
    Jun 17, 2008
    #2
    depending on your phone your screen shot is the resolution of your display. so if you have a 6plus and you took a screen shot its a 1920x1080 image
     
  3. Bahroo macrumors 68000

    Joined:
    Jul 21, 2012
    #3
    actually it'd be 2208x1250 (not entirely exactly sure of the resolution 6 Plus renders at, but it renders around that resolution then gets downscaled, but screenshots on a 6 Plus count as 2208x1250 resolution)
     
  4. D.T. macrumors 603

    D.T.

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    Sep 15, 2011
    Location:
    Vilano Beach, FL
    #4
    Yeah, because that’s what? A 6+ @ 1920x1080x32bpp (or 2208x1242...)? That's right at ~6.6MB (assuming a “high quality” quality JPG) JPG compression can get an image down pretty small without losing much perceivable IQ, but not much control over a screenie (unless you shoot, manually compress, and send)

    Interesting. The screen capture on a 6+ uses the internal “pre-downscaled” frame buffer vs. screen rendered output? BTW, that internal res I believe is 2208x1242 :)
     
  5. Bahroo macrumors 68000

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    Jul 21, 2012
    #5
    not entirely sure but if you look at EXIF of screenshots, clearly shows the screenshot at 2208x1242, and yes the resolution is 2208x1242, i knew i was close
     
  6. TJ82 thread starter macrumors 6502

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    Mar 8, 2012
    #6
    Ah fair play. Does make sense when it's broken down like that. Thanks :eek:
     
  7. D.T. macrumors 603

    D.T.

    Joined:
    Sep 15, 2011
    Location:
    Vilano Beach, FL
    #7
    Yeah, that’s really interesting, I hadn’t really considered a screen cap on a 6+ and how it would actually render it.

    I’m still a little baffled by that choice. I’m assuming we’ll see a “native” 3X retina iPhone in the very near future, and that was simply a component constraint compromise (and maybe a touch of battery consideration)
     
  8. Bahroo macrumors 68000

    Joined:
    Jul 21, 2012
    #8
    Yeah I can easily see apple putting a higher resolution display to match the native 3x, (2208x1242 panel) but that they couldnt get those in the Plus at the time because due to: 1080p panels being already easily in full production compared to a random 2208x1242 panels being made, and also battery constraints.

    either the 6S or 7 will guranteed defitnetly have this newer even higher resolution screen to match the 3x, 14nm Apple A9 and a increased battery capacity(due to smaller, more powerful, more power efficient SoC on a 14nm node) will easily make up for it and even give better battery life then what the Plus already has now
     
  9. D.T. macrumors 603

    D.T.

    Joined:
    Sep 15, 2011
    Location:
    Vilano Beach, FL
    #9
    Pardon my “duh” moment above, screen caps are PNG ...

    Funny, I believe the screen caps I’ve done are a good bit smaller (I shot a ton for screen shots in an app), but of course we’re talking like like ~3.7x more resolution on a 6+ @ 2208x1242 vs. a 5/5S with 1134x640.
     
  10. lakaiordie macrumors 65816

    Joined:
    Jun 17, 2008
    #10
    oh yea, i forgot it downscales.
     

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