Computer graphic kernel window caching technology

A computer graphics and window technology, applied in the direction of program control devices, etc., can solve the problems of less memory, unable to provide frame buffer memory, unable to use graphics system, etc., to achieve the effect of saving memory and simplifying the design method

Inactive Publication Date: 2014-01-22
罗侍田
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, some small embedded systems have very little memory (hereinafter referred to as poor memory syst

Method used

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  • Computer graphic kernel window caching technology
  • Computer graphic kernel window caching technology
  • Computer graphic kernel window caching technology

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Embodiment Construction

[0015] The present invention has been applied in the graphics system of Dujiangyan Operating System (abbreviated as djyos) to construct the graphics environment of djyos. By applying the invention, the programmer can flexibly choose whether to use the window buffer according to the memory resource status of the target computer system and whether the display interface itself needs to realize complex functions. When the window cache is used, the redrawing operation is completely performed by the kernel, which greatly simplifies the programming workload and improves the operating efficiency; without using the window cache, the window system can run on a computer system with very poor memory, which is beneficial to reduce the size of the device. Power consumption, volume, cost.

[0016] Such as figure 1 As shown, when the application program needs to create a window, it calls the API function provided by the operating system, and the function sends a window creation request to th...

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Abstract

Provided is a computer graphic kernel window caching technology. In graphic kernel s, a programmer can flexibly select whether to use a window buffer area by combining window caching and non-caching technologies according to the memory resource status of a target computer system and the fact whether a display interface needs to achieve complex functions or not. When the window caching is used, due to the fact that redrawing operation is completely executed through the inner kernel, programming workload is greatly simplified, and operation efficiency is improved. When the window caching is not used, the window system can be operated on a computer system with quite low memory, and reduction of consumption, size and cost of equipment is facilitated.

Description

Technical field [0001] The invention relates to a computer graphics user interface design technology, and proposes a new method for using a window buffer in the graphics kernel. Background technique [0002] Currently, in known GUI designs, the graphics kernel provides window management, including operations such as creating and deleting windows, moving windows, deleting windows, and changing window sizes. The user program is responsible for drawing the graphics in the window. The graphics system provides drawing functions to facilitate the application program to draw, but the graphics system does not manage the content drawn in the window. In a multi-window software design, since the windows may overlap each other, the windows may be partially or completely covered by other windows. After the application draws content in the window, when operations such as creating windows, moving windows, and changing the overlapping order occur, some or all areas of some windows will be ...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 罗侍田
Owner 罗侍田
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