A method of and apparatus for bitmap animation of on-screen-display graphics data over a distributed ieee 1394 network utilizing havi architecture and a clipping region having a visible window

摘要

A method of and apparatus for bitmap animation and display of on-screen-display graphics utilizes the HAVi architecture and displays the bitmap animation using a clipping region and a visible window. Data for a bitmap image of on-screen-display graphics is generated by a graphics source within a source device. The data is transmitted to a display device including a rendering engine. The bitmap image is then rendered by the display device. A clipping region and visible window are applied to the bitmap image as it is displayed by the display device. Only the portion of the bitmap image corresponding to the logical intersection of the visible window and the clipping region is displayed by the display device. The clipping region, visible window and the bitmap image can be moved in relation to each other through an animation sequence. The bitmap image can also be changed to generate animation within the clipping region. The size, position, path and other attributes of the clipping region are set within a bitmap animation object structure. Data for an object can also be generated by the source device and transmitted to the display device. The object can be moved through an animation sequence when displayed by the display device. Images or animation sequences can be displayed on or in the object.