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Graphic display method, device and system

A graphics and display memory technology, applied in the computer field, can solve problems such as reducing the concurrent processing capacity of the system, too many small elements, cracked screens, etc., and achieve the effect of improving the display effect

Active Publication Date: 2012-09-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the drawing memory is directly moved to the display memory, although the problem of too many small elements on the interface that can clearly see the drawing process is solved to a certain extent, there is still a defect of cracked screen
Moreover, when moving the drawing memory to the display memory, the CPU must wait for the moving hardware to complete the moving action, or the CPU performs the moving by itself, which reduces the concurrent processing capability of the system to a certain extent.

Method used

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  • Graphic display method, device and system
  • Graphic display method, device and system
  • Graphic display method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] This embodiment provides a graphics refresh method, such as figure 1 As shown, the method includes:

[0018] Step 101: move the graphics refresh rectangle from the drawing memory to the backup display memory;

[0019] This step is executed by a request unit, a flag unit, a judging unit and a calculation unit in the graphics refreshing device (such as a CPU). Among them, the request unit specifically executes the refresh process, calls the refresh interface to request refresh, that is, requests a moving hardware to perform a moving action of moving the graphics on the drawing memory to the backup display memory, and is responsible for the data consistency between the backup display memory and the current display memory. Guaranteed to display normally. The backup display memory is the display memory in the state of not transmitting graphic data to the display hardware, and the current memory is the display memory in the state of transmitting graphic data to the display ...

Embodiment 2

[0031] This embodiment provides a graphics refreshing device, such as Figure 4 As shown, the device 400 includes:

[0032] The request unit 401 requests the moving hardware to move the refresh rectangle of the graphics from the drawing memory to the backup display memory, and the backup display memory is a display memory in a state of not transmitting graphics data to the display hardware;

[0033] The receiving unit 402 is configured to receive the moving action completion interrupt signal of the moving hardware and the blanking area interrupt signal of the display hardware;

[0034] The flag unit 403 is used to set the switchable flag. If the switchable flag is set to true when the moving action completion interrupt signal is received, the switchable flag can be a variable in the memory as a switch value, for example, when it is 1, it means It is necessary to switch the display memory, when it is 0, it means not to switch;

[0035] The configuration unit 404 is configured...

Embodiment 3

[0042] This embodiment provides a graphics refresh system, such as Figure 6 As shown, the system includes:

[0043] Drawing memory 602, used to store drawn graphics;

[0044] Display memory 604, including current display memory and backup display memory, used to store graphics for display, the backup display memory is the display memory in the state of not transmitting graphics data to the display hardware, and the current memory is the display in the state of transmitting graphics data to the display memory Memory;

[0045] Moving hardware 603, configured to move the graphic from the rendering memory to the backup display memory, and send a move completion interrupt signal after the move is completed;

[0046] The display hardware 605 is used to display the refresh rectangle according to the address of the current display memory, complete the graphics refresh, and send a blanking area interrupt signal after the display is completed;

[0047] The central processing unit 60...

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PUM

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Abstract

The invention provides a graphic display method, a graphic display device and a graphic display system. The method comprises the following steps of: requesting transfer hardware to transfer an updated rectangle of a graph to a backup display memory from a drawing memory; receiving a transfer action completion interrupt signal of the transfer hardware, and setting a switchable flag to be true; andreceiving a blackout area interrupt signal of display hardware, and configuring an address of the current display memory according to the switchable flag. The device comprises a request unit for requesting the transfer hardware to transfer the updated rectangle of the graph to the backup display memory from the drawing memory, a receiving unit for receiving the transfer action completion interrupt signal of the transfer hardware and the blackout area interrupt signal of the display hardware, a flag unit used for setting the switchable flag and setting the switchable flag to be true if receiving the transfer action completion interrupt signal, and a configuration unit for configuring the address of the current display memory according to the switchable flag when receiving the blackout areainterrupt signal of the display hardware. The invention improves display effect and makes the drawn contents not displayed on a screen directly.

Description

technical field [0001] The invention relates to the field of computers, in particular to a graphic display method, device and system. Background technique [0002] In the field of graphics display, graphics display refresh is a process of finally displaying the drawn content on the screen after the graphics drawing preparation is completed. During the refresh process, software and hardware need to cooperate with each other. The display effect and performance of the entire graphics system depend on the design of the refresh scheme. The existing technical solutions basically draw graphics in a piece of memory through graphics acceleration hardware or general-purpose CPU using software algorithms, and then read the memory by display hardware, and display the memory data on the screen according to a certain display standard. In order to overcome the problem of poor display effect, the industry usually separates the drawing memory and the display memory. After the drawing is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/14
Inventor 赵伟明丁送星王玺林
Owner HUAWEI TECH CO LTD