Power efficient video playback based on display hardware feedback

An apparatus configured for displaying video data, the apparatus comprising:

• at least one internal memory;
• and
• one or more processors in communication with the at least one internal memory, the one or more processors configured to:
• detect that a background layer comprising first pixel data of a constant color is being provided from a memory for display, wherein the background layer is of an application associated with a plurality of layers;
• generate second pixel data of the constant color for the background layer of the application without fetching all of the first pixel data of the constant color for the background layer from the at least one internal memory in response to the detecting that the background layer comprises pixel data of the constant color;
• retrieve a foreground layer of the application associated with the plurality of layers from the at least one internal memory;
• and
• composite the retrieved foreground layer and the generated second pixel data of the constant color for the background layer for display.

An apparatus configured for displaying video data, the apparatus comprising:

• means for detecting that a background layer comprising first pixel data of a constant color is being provided from a memory for display, wherein the background layer is of an application associated with a plurality of layers;
• means for generating second pixel data of the constant color for the background layer of the application without fetching all of the first pixel data of the constant color for the background layer from the memory in response to the detecting that the background layer comprises pixel data of the constant color;
• means for retrieving a foreground layer of the application associated with the plurality of layers from the memory;
• and
• means for compositing the retrieved foreground layer and the generated second pixel data of the constant color for the background layer for display.

A non-transitory computer-readable storage medium storing instructions that, when executed, causes one or more processors to:

• detect that a background layer comprising first pixel data of a constant color is being provided from a memory for display, wherein the background layer is of an application associated with a plurality of layers;
• generate second pixel data of the constant color for the background layer of the application without fetching all of the first pixel data of the constant color for the background layer from the memory in response to the detecting that the background layer comprises pixel data of the constant color;
• retrieve a foreground layer of the application associated with the plurality of layers from the memory;
• and
• composite the retrieved foreground layer and the generated second pixel data of the constant color for the background layer for display.