| 摘要 |
A universal computer display adapter is provided for a computer having a first memory accessed by applications running on the computer. Each such application acquires a portion of such first memory dedicated to its use. Such dedicated memory serves as a virtual adapter for each respective application whereby the particular application, either during setup or runtime, independently declares its respective virtual adapter to be of a particular desired video display type or mode. A secondary memory is provided to refresh a computer display interconnected to the computer in a conventional manner. Disposed between the first and second memories is a signal processor which may take the form of a digital signal processor (DSP). The processor reformats the image from each such virtual adapter into the common second memory for display. Such reformatting is under control of an operating system specifying position, size, precedence, transparency, and the like of each image window.
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