Expand description
Framebuffer device.
Provides interfaces for reading, mapping, and managing the format of the framebuffer.
The function framebuffer is used to create two structs:
Framebuffer, which is used to map an area of memory for the guest to
write to, and FramebufferAccess, which is transformed into a View
to allow the VNC server to read from that memory.
In HvLite, the Framebuffer is used to create a FramebufferDevice
and a FramebufferLocalControl which share state using an inner mutex.
The latter implements [FramebufferControl] which provides the necessary
interfaces for a video device to control the framebuffer.
In Underhill, the format sender is extracted from the framebuffer and used
to create a different struct that implements the same trait.
This is separate from the synthetic device because its lifetime is separate from that of the synthetic video VMBus channel.
Structs§
- Framebuffer
- The video framebuffer to be provided to the device.
- Framebuffer
Access - An accessor for the framebuffer. Can be sent cross-process via mesh.
- Framebuffer
Device - A chipset device for the framebuffer.
- Framebuffer
Local Control - Used to control a framebuffer running in the same process
- Saved
State - Saved state.
- View
- A mapped view of the framebuffer.
Constants§
- FRAMEBUFFER_
SIZE - The framebuffer size. In the future, this will be variable.
Functions§
- framebuffer
- Creates a framebuffer and an object that can be used to read from it. The framebuffer should be allocated prior to calling this function.