| 主权项 |
1. An image data processing device comprising:
a display control unit for controlling display of images on a display device; a decoding priority setting unit for setting a decoding priority in each of image data of a plurality of images to be displayed on a display screen of the display device by the display control unit; a decoding unit for performing a decoding process on each image data according to the decoding priority set by the decoding priority setting unit; and a storage unit for storing each decoded image data subjected to the decoding process by the decoding unit, wherein the decoding unit performs, in advance, the decoding process on selected image data corresponding to selected ones of the plurality of images, in a processing order based on the set decoding priority, and prior to respective times at which each of the selected ones of the plurality of images is requested for display on the display screen, wherein the decoded selected image data is stored in the storage unit, and when respective ones of the selected ones of the plurality of images are requested for display on the display screen, corresponding decoded selected image data is retrieved from the storage unit, wherein when a user arbitrarily scrolls through the plurality of images being displayed on the display screen in a direction along which the plurality of images are arranged, the decoding unit performs advance decoding process on image data of images that are not currently displayed on the display screen according to the set decoding priority, the decoding priority having been set based on a predicted result of a future scroll manipulation of the plurality of images by the user and the decoding priority also indicating a likelihood that the images not currently displayed will be imminently requested for display, wherein the predicted result is indicative of which images not currently displayed will be displayed after performing of the future scroll manipulation of the plurality of images, wherein the plurality of images are not portions of any one single image, and wherein the plurality of images are displayed on the display screen as a list of sequentially arranged images. |
