Embedded Graphics Drivers in Mesa
Talkat Open Source Summit Europe + Embedded Linux Conference Europe 2019 · on Tuesday, 2019-10-29· at 16:20· Forum 3·
summary
Overview of the claim: Mesa provides real, working open-source user-space drivers that let embedded GPUs avoid vendor blobs. It shows a full compiler pipeline (GLSL -> AST -> GLSL IR -> NIR -> driver machine code), and specific drivers: Freedreno (Adreno) implements GL 3.1 / GLES 3.1 via reverse engineering and runs on Pixel 3a, Panfrost now in mainline Mesa for Mali Midgard/Bifrost, plus Broadcom VC4/V3D for Raspberry Pi; these drivers are merged and actively used, not just demos.
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chapters (24)
- 0:00Introduction
- 0:34What is a GPU
- 0:59What are shaders
- 3:39What is Mesa
- 6:33OpenGL
- 8:09Shaders
- 9:57GLSL
- 11:49OpenGL ES
- 13:59Vulkan
- 18:38Mesa
- 20:16Chronos
- 21:25Mesa Matrix
- 21:53Mesa Internal Architecture
- 26:58Shader Representation
- 30:51Sequence of Operations
- 31:28Example
- 32:32Embedded Drivers
- 32:46Free Junior Driver
- 34:08VC for Driver
- 34:54VideoPU Driver
- 35:17Pan Driver
- 35:58Super Tax Cut
- 36:11Vivante
- 37:03Capacitor
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