Method and apparatus to reduce display lag using image overlay

摘要

A system includes a touch path logic configured to receive a plurality of touch events and to generate an output based on the touch events; and a rendering logic configured to receive a video image; receive the output of the touch path logic; combine the video image with overlay data in accordance with the output of the touch path logic to generate a combined display image; and output the combined display image.

主权项

1. A system comprising:
a touch path logic configured to:
receive a plurality of touch events from a touch sensor panel;compute an estimated touch path in accordance with the touch events;receive a parameter; andgenerate mask data based on the estimated touch path and the parameter; and a rendering logic configured to:
receive a video image;receive the mask data from the touch path logic;combine the video image with overlay data in accordance with the mask data to generate a combined display image; andoutput the combined display image, wherein the mask data comprises a matrix of numerical values, each of the numerical values identifying an operation of the rendering logic to produce the combined display image, and wherein positions of the numerical values within the matrix correspond to positions of pixels in the combined display image.