The community of open source mobile developers around the world are a vocal bunch – and here at Broadcom we’ve heard their call.
To date, there’s been a dearth of documentation and vendor-developed open source drivers for the graphics subsystems of mobile systems-on-a-chip (SoC). Binary drivers prevent users from fixing bugs or otherwise improving the graphics stack, and complicate the task of porting new operating systems to a device without vendor assistance.
But that’s changing, and Broadcom is taking up the cause.
Today, Broadcom is releasing the full source of the OpenGL ES 1.1 and 2.0 driver stack for the Broadcom VideoCore® IV 3D graphics subsystem used in the BCM21553 3G integrated baseband SoC. VideoCore IV is used in many Broadcom products, including the BCM2835 application processor, which runs the popular Raspberry Pi microcomputer.
The trend over the last decade has leaned towards greater openness in desktop graphics, and the same is happening in the mobile space. Broadcom — a long-time leader in graphics processors — is a frontrunner in this movement and aims to contribute to its momentum.
The VideoCore driver stack, which includes a complete standards-compliant compiler for the OpenGL® ES Shading Language, is provided under a 3-clause BSD license; the source release is accompanied by complete register-level documentation for the graphics engine.
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