METHOD AND APPARATUS FOR CONTROLLING DISPLAY OPERATIONS
First Claim
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1. A method of operating a data processing system in which a stream of output frames to be displayed is generated by the data processing system for display on a display device, the method comprising:
- a display controller of the data processing system comparing output frames to be displayed, and controlling at least one aspect of the way in which the output frames are provided for display on the display device on the basis of the comparison.
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Abstract
A graphics processing system generates output frames for display on a display. Comparison and control hardware of a display controller of the graphics processing system operates to compare successive output frames that are being generated for display, and then controls one or more aspects of the way in which the display of the output frames is carried out. In one embodiment, the display device or a frame buffer is partially updated (refreshed) by the display controller on the basis of comparisons of composited output frames.
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22 Claims
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1. A method of operating a data processing system in which a stream of output frames to be displayed is generated by the data processing system for display on a display device, the method comprising:
a display controller of the data processing system comparing output frames to be displayed, and controlling at least one aspect of the way in which the output frames are provided for display on the display device on the basis of the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 22)
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8. A data processing system in which a stream of output frames to be displayed is generated by the data processing system for display on a display device, the system comprising:
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a display device configured to display an output frame; and a display controller comprising processing circuitry configured to compare output frames to be displayed and control at least one aspect of the way in which the output frames are provided for display on the display device on the basis of the comparison. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A display controller for use in a data processing system in which a stream of output frames to be displayed are generated by the data processing system for display on a display device, the display controller comprising:
processing circuitry configured to compare output frames to be displayed, and to control at least one aspect of the way in which the output frames are provided for display on the display device on the basis of the comparison. - View Dependent Claims (16, 17, 18, 19, 20, 21)
Specification