In the last chapter, we did a deep analysis of Android Gralloc HAL modules. We analyzed the default Gralloc module and the hardware GPU emulation Gralloc HAL for the Android emulator. We don't have time to walk through the boot up process related to the graphics system yet. In this chapter, we will walk through the boot up process of the graphics system and explore the VirtualBox-specific hardware drivers. At the end of this chapter, we will have a relatively complete system on VirtualBox. We will cover the following topics in this chapter:

• OpenGL ES and graphics hardware initialization
• Integration of VirtualBox Guest Additions