| 主权项 |
1. A display controller, comprising:
a blending stage for blending multiple image layers into one display output image, the blending stage comprising having a plurality of input channels for receiving pixel data for the multiple image layers and multiple blenders for combining the pixel data received by at least two input channels of the plurality of input channels; and a controllable switch for coupling an output of at least one blender of the multiple blenders to a display output of the blending stage for regular on-the-fly blending or to an offline blending memory for storing a result of an offline blending task, a blending controller coupled to the blending stage, for controlling operation of the blending stage, and the blending controller having an input for receiving layer data describing one or more of locations and properties of the multiple image layers, and a predictor for, based on the layer data, predicting an availability of the at least one blender, the blending controller further being operative to control the blending stage to perform the offline blending task in dependence of the predicted availability, and to control said controllable switch accordingly. |
