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R5xx Compositing is Done

Posted by Hans de Ruiter

R5xx compositing on Amiga OS 4.xI am pleased to announce that compositing for R5xx based cards (Radeon X1000 series) is now done. This marks a major milestone in the development of the RadeonHD.chip driver. Namely, full 2D graphics acceleration is implemented for an entire series of graphics cards. The screenshot below shows  Workbench with compositing effects enabled being displayed by a Radeon X1550 graphics card. As you can see, the errors that were present in the previous screenshot are now gone (the development log entry containing the previous screenshot is included in the image below for comparison).

Implementing compositing proved to be a major undertaking. As I said earlier, Amiga OS 4.x's compositing contains a powerful array of features, all of which must be implemented correctly by the driver. Added to this, a slight eror in the data sent to the graphics card could cause a freeze, requiring a hard reset. This makes debugging rather time consuming. Needless to say, I am glad that it is done, and working correctly.

With full 2D acceleration implemented for R5xx chipsets, it is now time to turn my attention to hardware accelerated blitter for R6xx/R7xx based cards.

R5xx compositing on Amiga OS 4.x



Comments (12) | 28 December 2009

Projects » Amiga OS 4 Projects » RadeonHD Driver » RadeonHD Development Log » R5xx Compositing is Done

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  • Hi Johannes,

    I could definitely use another beta tester. See the "Where to Buy RadeonHD.chip Compatible PCI Cards" page for which cards you can buy, and where from. You'll find the link in the menu on the sidebar.

    In all cases, make sure that it's the PCI version, NOT the PCI-Express version (which won't fit into your current Amiga).

    Hans

    Posted by Hans, 29/12/2009 4:14am (15 years ago)

  • This is great stuff!!
    Now all I wonder is Which R6xx/R7xx i should Buy so as i could be of most use as betatester? Certainly you could use some more that are willing to get a GPU for the specific purpous of helping out? :) hell, your proving to give us all Amigans an Unvaluble service with theese drivers ^^

    Posted by Johannes, 28/12/2009 11:07pm (15 years ago)

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Projects » Amiga OS 4 Projects » RadeonHD Driver » RadeonHD Development Log » R5xx Compositing is Done