One of the few but lingering complaints about the Raspberry Pi is that it relies on a proprietary GPU blob for communication between the graphics drivers and the hardware. Today, Broadcom released the full source for the OpenGL ES 1.1 and 2.0 driver stack for the Broadcom VideoCore IV 3D graphics subsystem running on one of its popular cellphone systems-on-a-chip. It's available under a BSD license, and Broadcom provided documentation for the graphics core as well. The SoC in question is similar to the one used on the Raspberry Pi, and Eben Upton says making a port should be 'relatively straightforward.' The Raspberry Pi Foundation has offered a $10,000 bounty for the first person who can demonstrate a functional port. (The test for functionality is, of course, being able to run Quake III Arena.) Upton says, 'This isn't the end of the road for us: there are still significant parts of the multimedia hardware on BCM2835 which are only accessible via the blob. But we're incredibly proud that VideoCore IV is the first publicly documented mobile graphics core, and hope this is the first step towards a blob-free future for Raspberry Pi.' Side note: the RPi is now two years old, and has sold 2.5 million units.
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