Compositing: Difference between revisions

* '''Video memory access''' - The compositor itself needs to be able to access video memory or have some interface to draw to the screen.

* '''Shared memory''' - An interface to graphics memory is technically superior to system memory, but is significantly more difficult to implement and requires a thorough understanding of graphics hardware. Regardless, you will need an interface by which two processes can read and write the same region of memory (or at least, one side needs to be able to write at least one region, and other side needs to be able to read from many such regions). You will need to be able to support many regions up to, and even beyond, the size of your display in pixels. The format for these shared memory regions will be discussed later.

 

== Design Decisions ==