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Ah,so cool.

Problem With Panfrost

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1.Only OpenGL ES2.1 and 1.x work:

chenyifei@orangepi3:~$ glxinfo|grep OpenGL
OpenGL vendor string: Panfrost
OpenGL renderer string: Mali T720 (Panfrost)
OpenGL version string: 2.1 Mesa 20.2.0-devel
OpenGL shading language version string: 1.20
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 20.2.0-devel
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16
2.glx did't work with panfrost dri:

chenyifei@orangepi3:~$ cat /var/log/Xorg.0.log|grep GL
[ 10447.384] (II) Initializing extension GLX
[ 10447.384] (EE) AIGLX error: sun4i-drm does not export required DRI extension
[ 10447.395] (II) IGLX: Loaded and initialized swrast
[ 10447.395] (II) GLX: Initialized DRISWRAST GL provider for screen 0
3.Some programs run slow,they report error like this:

libGL: Failed load driver sun4i-drm

libGL: Failed create dri screen.

4 .WebGL did't work on chromium.

Why?

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