The graphics system in Android is similar to the architecture that we discussed in Chapter 3, Discovering Kernel, HAL, and Virtual Hardware. There we used goldfish lights HAL as an example to do a detailed analysis from the application level to the HAL and device driver layer. This analysis helps us to understand the Android architecture vertically.

However, the graphics system could be the most complicated system in the Android architecture. It would require another book to give a detailed introduction to the Android graphics system. The focus of this book is on how we can port Android systems to a new hardware platform. To focus on this goal, we will address the graphics HAL in this chapter instead of discussing the entire graphics system. The graphics system will work if we can choose the right graphics HAL and configure it right.

According to Google documents...