Drobe :: The archives
About Drobe | Contact | RSS | Twitter | Tech docs | Downloads | BBC Micro

Confirm comment report request

fastspr has it's own screen bank routine, and is very fast anyway, so there is no real need to be tight about what where and when you draw, SDL windowed on a StrongARM is just about bareable as long as you are carefull what you redraw, using SDL_Flip(screen); ( updating the entire visible area ) can slow things down alot, and it is good practise only to update the screen where and when neccesary anyway. but.. SDL_Flip does not wipe everything then redraw it, which is what the FstSpr stuff does, you would have to draw a big rectangle to acheive this if it were neccesary. as conveysdl isn't exactly proccesor stretching and a large percentage of the screen is changed each frame, it just uses SDL_Flip, tho in some other progects i am working on, i am only updating the rectangles of the screen that have changed. which messes with my head a bit.

 is a RISC OS Usernex on 17/10/04 10:52AM
[ Reply | Permalink | Report ]

Click on the button below to confirm you wish to flag up this comment to the website's administrators. Abuse of this service will be frowned upon and it should only be used to notify us of comments that are extremely distasteful, indecent or otherwise unlawful. If you disagree with an opinion expressed or fact stated in a comment, please take part in the debate rather than expect it to be removed.

Return to the drobe.co.uk front page

Details

Reporting user / IP: / 34.238.194.166
Comment GID: 12530
Timestamp: Tue, 20 Aug 2019 18:36:55 +0000

Search the archives

Today's featured article

  • Should the TCO of RISC OS be higher?
    Show us the money
     61 comments, latest by datawave on 16/06/05 5:07PM. Published: 17 Feb 2005

  • Random article

  • libSDL for me and you
    Now we can all port some games
     3 comments, latest by diomus on 13/5/03 7:42PM. Published: 12 May 2003

  • Useful links

    News and media:
    IconbarMyRISCOSArcSiteRISCOScodeANSC.S.A.AnnounceArchiveQercusRiscWorldDrag'n'DropGAG-News

    Top developers:
    RISCOS LtdRISC OS OpenMW SoftwareR-CompAdvantage SixVirtualAcorn

    Dealers:
    CJE MicrosAPDLCastlea4X-AmpleLiquid SiliconWebmonster

    Usergroups:
    WROCCRONENKACCIRUGSASAUGROUGOLRONWUGMUGWAUGGAGRISCOS.be

    Useful:
    RISCOS.org.ukRISCOS.orgRISCOS.infoFilebaseChris Why's Acorn/RISC OS collectionNetSurf

    Non-RISC OS:
    The RegisterThe InquirerApple InsiderBBC NewsSky NewsGoogle Newsxkcddiodesign


    © 1999-2009 The Drobe Team. Some rights reserved, click here for more information
    Powered by MiniDrobeCMS, based on J4U | Statistics
    "I must take exception to the publishing of my private email to Drobe. But then they are renowned for bad form"
    Page generated in 0.0483 seconds.