Projects » Amiga OS 4 Projects » RadeonHD Driver » RadeonHD Development Log » Milestone One - A Working Frame-Buffer RadeonHD Graphics Driver for Amiga OS 4.x

Milestone One - A Working Frame-Buffer RadeonHD Graphics Driver for Amiga OS 4.x

Today (13 October 2008) I have successfully opened a screen using the Picasso96 RadeonHD driver. There are still a few issues to sort out. For example, the colour look-up tables are not set, resulting in some funny colours. Also, the 16-bit screen-modes do not display correctly. Nevertheless, this is an important milestone. It is now possible to open screens (including workbench) via this driver. Being just a frame-buffer driver, there is no hardware acceleration for graphics, meaning that all rendering must be performed by the CPU. As a result, dragging windows can be sluggish. Interestingly, compositing does work, but switching it off speeds up the system.

After fixing the issues with the frame-buffer driver, the next step will be to get the hardware sprite for the mouse pointer working.  Hardware acceleration will follow afterward. Since AMD have not yet released all the GPU documentation for R6xx cards, I have switched back to the Radeon X1300, for which full documentation is available.

 

Workbench being displayed by a Radeon X1300 graphics card.
 Workbench being displayed by a Radeon X1300 graphics card.

 



Projects » Amiga OS 4 Projects » RadeonHD Driver » RadeonHD Development Log » Milestone One - A Working Frame-Buffer RadeonHD Graphics Driver for Amiga OS 4.x

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Comments

  • You are a masterpiece :D

    Posted by kicko, 14/10/2008 5:38am (9 years ago)

  • Wow awesome work!! It will be amazing when u are finished :)

    Posted by Darren, 14/10/2008 1:56am (9 years ago)

  • That was fast! Do you sleep?

    Nice work.

    Posted by gregthecanuck, 13/10/2008 11:13pm (9 years ago)

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Projects » Amiga OS 4 Projects » RadeonHD Driver » RadeonHD Development Log » Milestone One - A Working Frame-Buffer RadeonHD Graphics Driver for Amiga OS 4.x