Embedded Linux Conference + Android Builders Summit

In this talk I describe the internal workings of the Android graphics stack from the Application layer down through the stack to pixels on the screen. It is a fairly complex journey, taking in two different 2D rendering engines, applications calling OpenGL ES directory, passing buffers on to the system compositor, Surface Flinger, and then down to the display controller or frame buffer. All this requires careful synchronisation so that what appears on the screen is smooth, without jitter, and makes efficient use of memory, CPU, GPU and power resources.