| 摘要 |
A method of managing a frame buffer memory 28 of a display control device 16 where the memory stores display data sent from a host device 10 to the display control device. A map 18 is maintained at the display control device indicating locations corresponding to addresses of the memory at which data is stored or not. The map is used to determine a size of a portion of the display data, and a location on the map where the portion would fit into the memory. The portion of received data is then stored at the location and the map is updated. Compression parameters may be selected by the display control device and sent to the host device so that the compressed portion of display data will fit into a free space in the memory. A map may indicate the quality of portions of the display data stored in the memory and when resources are available, a higher quality compressed portion may be transmitted from the host. Compression may be varied to give optimum quality based on transmission bandwidth or for receiving in a target time. |
