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xf86-video-wmt

An X.org video driver for the WonderMedia WM8505 display controller and its 2D Graphics Engine (GE), specifically targeting the early-2010s ARM netbooks built around this SoC.

It sits on top of the in-kernel wmt-drm DRM/KMS driver. X11 solid fills and copies are EXA-accelerated on the GE through the kernel's asynchronous job ring.

Capabilities

  • KMS modesetting.
  • EXA-accelerated 2D solid fills and copies.
  • Pixmaps backed by GEM dumb buffers.
  • Optional TearFree page-flipping.
  • Backlight control via RandR.

The GE is a ROP3 fill/blit engine with no per-pixel alpha. The driver uses its copy and XOR ops. Render compositing is handled by the X server in software; the resulting blits to the screen are GE-accelerated.

Building

Standard autotools

Requires: xserver-xorg-dev libdrm-dev xutils-dev automake libtool pkgconf

./autogen.sh
make
sudo make install

Cross-build deb package

Requires: mmdebstrap qemu-user-binfmt uidmap (Build dependencies are automatically resolved inside the chroot.)

./build-deb.sh

License

MIT/X11 - see COPYING.