1. #1
    Join Date
    Apr 2005
    Posts
    24,347

    Sconsole Details a Simple Function for Printing Strings on PS3

    Following up on his previous Guide to Compile PS3 Homebrew via PSL1GHT, today Scognito posted on Sconsole which details a simple function for printing strings on PS3 for developers.

    Download: Sconsole PS3 Demo and PKG File v0.1 with Source Code

    To quote: PSL1GHT is a fantastic SDK, growing day after day thanks to help of talented developers like phiren, MattP, AerialX and others.

    What I need to start porting Scogger is to print some debug information (like screen size, sprites information and such), but unfortunately for me STDOUT and STDERR are redirected to the lv2 TTY interface.

    Right now there are two ways I know for printing debug informations:

    - using Kammy
    - using libcairo font support provided by ps3libraries

    Altought these are valid alternatives, they represent a complexity level that is too much for my lazyness: Kammy requires PS3 attached to the router via ethernet cable, plus it prints information to a pc, not to the screen. Most important it needs a peek/poke capable payaload, and my PSJailbreak dongle doesn't have it.

    Libcairo is new to me, it has amazing power but for now I don't want to learn another library, also it is a waste to use it just for replacing printf.

    That's why I created very simple console, called Sconsole, whose job is to print some text on framebuffer using 8×16 fonts.

    Let's see how to use it:

    Using Sconsole

    Using Sconsole is very simple: just add the three files included in the zip file in your source directory and you are almost done.

    Let's see an example.

    The first thing to do is actually import the header file:

    [Register or Login to view code]

    Then we need to initialize it, here it is the syntax:

    [Register or Login to view code]

    - bgcolor is the background color of the printed string,
    - fcColor is the actual font color
    - screenWidth and screenHeight are your screen resolution

    Colors are in the 0xAARRGGBB format (alpha channel not available). Few colors are defined in sconsole.h but you can use yours. Also FONT_COLOR_NONE means no color ("transparent"),

    ScreenWidth and ScreenHeight are actually the screen resolution you get with videoGetResolution function.

    [Register or Login to view code]

    Printing function needs X and Y coordinates, plus the pointer to the framebuffer where write into.

    [Register or Login to view code]

    Or using sprintf before actually print comples strings:

    [Register or Login to view code]

    Dead simple

    Please note: 108 ASCII characters are included (most used ones). They are from 32 (space) to 126 (~) of the ASCII table. They include digits, uppercase & lowecase letters, pluse other ones like parenthesis, plus minus, commas...

    Hope it will help someone, waiting for screen output of STDOUT/STDERR.

    Happy coding!

    Sconsole Details a Simple Function for Printing Strings on PS3

    More PlayStation 3 News...

  2. #2
    Join Date
    Mar 2010
    Posts
    39
    Nice work for devs, thanks

  3. #3
    Join Date
    Jan 2010
    Posts
    1,345

    Question

    For what this should be good ? Printing out is an old technical thing. Don't know which Dev should be interested in this.

  4. #4
    Join Date
    Sep 2010
    Posts
    11
    Oh, it's just the most important debugging tool ever

  5. #5
    Join Date
    Sep 2008
    Posts
    740
    you're absolutely correct, it is the most important tool to a programmer.

  6. #6
    Join Date
    Apr 2005
    Posts
    24,347

    Arrow Homebrew - Scogger Running on PS3

    Just a minor (video only) update:

    [Register or Login to view code]

    Check out CConsole.hpp for a list of all the available methods:

    [Register or Login to view code]


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