JPH03191396A - Display control system of multiwindow system - Google Patents

Abstract

PURPOSE:To prevent the display processing time from becoming long by performing re-display operation before and after processing according to the display priority levels of all windows. CONSTITUTION:The system is provided with a mask memory 3 which indicates a display of the entire area of a specified window as an object of real-time local processing when the window is specified and a display memory B 4 for storing only the data of the specified window as data in the display area of the window in real time. Then the contents of the display memories A 2 and B 4 are displayed selectively according to the data indicated in the mask memory 3. Consequently, the entire area of the window to be processed is displayed at the time of the real-time local processing without altering the contents of the display memory A 2 and when the real-time local processing ends, the contents of the display memory A 2 stored with display data are displayed according to future display priority order. Consequently, an unnecessary time is prevented from being spent for the display processing.

Description

[Detailed Description of the Invention] [Table of Contents] Overview Industrial Application Fields Prior Art and Problems to be Solved by the Invention Means for Solving the Problems Action Examples Effects of the Invention [Summary] Processing in working memory Regarding the display control method in a display device equipped with a multi-window function that transfers multiple window data to the display memory A and displays them based on display priority, when displaying the results of processing in a specific window, The purpose is to prevent display processing from taking too long by redisplaying all windows according to their display priority before and after processing.When a specific window to be displayed is specified, the specified A mask memory that specifies the entire area of the specified window, and a display memory B that stores the data of the specified window in the display area of the window are provided. Window data for a specific display target is transferred to display memory A and display memory B through the working memory.
For the area specified by the mask memory, the contents of the display memory B are displayed, and for the area not specified by the mask memory, the contents are transferred to the display memory A.
Configure to display the contents of.

[Industrial application field]

The present invention is applicable to, for example, real-time local processing in a display device equipped with a multi-window function that transfers a plurality of window data processed in a working memory to a display memory A for display based on display priority. Regarding display control methods.

With the recent spread of multi-window systems, the number of windows is also increasing. For example, when performing airbrush processing or single handwriting input processing, an operator can use an input device to perform tasks in real time while viewing the entire screen of the relevant window on the display. Each time the process is performed, the window for airbrushing etc. is given the highest priority display based on the predetermined display priority order, and when the process is completed, the original display is restored. When the number of windows increases above the need to return to priority display,
There is a problem that real-time processing for each window becomes difficult, and even if real-time processing is performed on data in a window with a low display priority, it is not necessary to redisplay all windows before and after processing. A display control method is required.

[Prior art and problems to be solved by the invention] Fig. 3 is a diagram explaining a display control method in a conventional multi-window system, and (al) to (a3) schematically show examples of normal display. , and (bl) to (b3) schematically show display examples when performing airbrush processing or the like.

A conventional display device (hereinafter simply referred to as a display device) having a multi-window function, for example,
The display control method when performing real-time local processing will be described below.

The real-time local processing referred to here is, for example, airbrush processing or two-handwriting input processing, which is performed in real time by an operator using an input device (pointing device, etc.) while looking at a display screen, without communicating with a host computer. It refers to processing.

When performing the real-time local processing under a multi-window, the operator needs to be able to see the entire window, regardless of the display priority of the window.

In conventional display devices, (al) to (a3
) As shown in the figure, by transferring each window data stored in the working memory 1 to the display memory 2a in order from window C with the lowest display priority, multiple pieces of data can be displayed on the screen of the display device. Display the window.

At this time, the main control unit (MPU) (not shown) of the display device calculates the overlapping portion of the multiple windows A to C to be displayed on the main storage device (also not shown), and ranks the priority. The part of the window with a low height, excluding the overlapping part, is divided into a plurality of rectangles.
a3) Transfer each window data from the working memory 1 to the display memory 2a in the order shown in the figure.

Therefore, since there is only one display memory 2a, for example, windows B and C have low display priority.
The above real-time local processing (
In the figure, if you want to perform local processing (indicated simply as local processing), as shown in (bl) to (b3), the overlap between the above windows when the display priority of that window is set to the highest ) part, and after removing the overlapped parts, divide the parts into multiple rectangles and redisplay them, and then perform the real-time local processing (airbrush processing, etc., above) (see figure (b2)). ), when the real-time local processing was completed, it was necessary to perform overlap calculation to return the window to its original display priority and redisplay all windows (see figure (b3)). .

According to the conventional display control method described above, all windows are redisplayed before and after the real-time local processing.
When the number of windows increases, there is a problem in that it takes too much processing time for display and it becomes difficult to execute airbrush processing in real time.

In view of the above-mentioned conventional drawbacks, the present invention provides a display device equipped with a multi-window function that transfers a plurality of window data processed in a working memory to a display memory A based on display priority and displays the data. Provides a display control method for multi-window systems that prevents display processing from taking too much time by redisplaying the results of processing in a specific window according to the display priority of all windows before and after processing. The purpose is to

[Means to solve the problem]

FIG. 1 is a diagram explaining the present invention in detail, in which (a) shows a principle block diagram, and (bl) to (b3) are diagrams schematically showing the principle operation.

The above problems are solved by a display control method in a multi-window system configured as follows.

In a display device equipped with a multi-window function that transfers a plurality of window data processed in the working memory 1 to the display memory A2 and displays them based on display priority, a specific window to be displayed is specified. A mask memory 3 for specifying the entire area of the specified window and a display memory B4 for storing the data of the specified window in the display area of the window are provided. During processing, the window data of the specific display target is transferred to the display memory A2 and the display memory B4 via the working memory 1, and the area specified by the mask memory 3 is It is configured to display the contents of the display memory B4, and display the contents of the display memory A2 for areas not specified by the mask memory 3.

[Operation] That is, according to the present invention, a display device is provided with a multi-window function that transfers a plurality of window data processed in the working memory 1 to the display memory A2 and displays them based on the display priority order. When a window to be processed in real-time local processing (for example, window B) is specified, data for displaying the data in the display memory B4, for example, °1゛, is first stored in the mask memory 3 of the present invention. is set in the area of window B, and for other areas, the above display memory A is set.
Create mask data by setting data for displaying the data of No. 2, for example, °0". (No. 1
Figure (bl).

(See (b2)) Next, the contents of the window B are retrieved from the working memory l,
It is transferred and stored in the area of the window B of the display memory B4 of the present invention.

Here, when the real-time local processing, for example the above-mentioned airbrush processing, is started, the results of the real-time processing are transferred to the corresponding area of the working memory, and are also transferred to the display memory A2 in real time. It is transferred and stored in the area corresponding to window B of display memory B4.

The display on the display is based on the mask data set in the mask memory 3 of the present invention.
For example, for pixels set to °1', the results of real-time local processing of window B stored in display memory B4 are displayed, and for pixels set to °0', displayed in the display memory B4. The contents of A2, i.e.
It functions to display the contents of windows that are not related to this real-time local processing. (See Figure 1 (b2)) Therefore, since window B subject to real-time local processing is displayed without being covered by other windows A and C, window B is not affected by other windows. , it becomes possible to perform airbrush processing etc. in real time.

Furthermore, when the designation of real-time local processing for window B that was performing real-time local processing is canceled, the data in the display memory A2 is displayed on the display screen of the display device at the timing of cancellation. By simply changing the mask data in the mask memory 3, that is, without changing the display data on the display memory A2, the display state before performing the real-time local processing, that is, the predetermined display. You can return to the display according to the priority order.

(See FIG. 1 (b3)) That is, according to the present invention, at the start of real-time local processing, mask data is created in the mask memory and the processing results are sequentially transferred to the display memories A and B. The entire area of window B to be processed can be displayed in real time, and when the real-time local processing is finished, the mask of the mask memory is canceled (reset).
Since the original display state can be restored by simply doing this, the time required to transfer data to the display memory A, etc. is reduced, and the real-time local processing time can be shortened.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

The above-mentioned FIG. 1 is a diagram explaining the present invention in detail, and FIG.
The figures are diagrams showing one embodiment of the present invention, in which (a) shows an example of the configuration of a display device, (bl), (b2)
shows an operation flow, in which a plurality of window data processed in the working memory 1 are transferred to the display memory A2 based on display priority and displayed on a display device equipped with a multi-window function, for example. ,
When a window for real-time local processing is specified, mask data for selectively displaying the contents of the display memory B4 is set in the mask memory 3, and the data of the window is transferred to the display memory B4. death,
During the real-time local processing, the contents of the display memory B4 for window B are displayed as they are based on the mask data of the mask memory 3, and the contents of the display memory B4 for areas other than window B are displayed as they are. A2
A means for displaying the contents of the display memory A2, canceling (resetting) the mask data in the mask memory 3 when the real-time local processing is completed, and displaying the contents of the display memory A2 is necessary to carry out the present invention. It is a method.

Note that the same reference numerals indicate the same objects throughout the figures.

Hereinafter, the display control method in the multi-window system of the present invention will be explained with reference to FIG. 2 while referring to FIG.

First, in the case of normal display, the window for specifying real-time local processing does not exist, so the window shown in Figure 2 (a)
In the mask memory 3, the entire area is, for example,
Since it is in the reset state, that is, °0゛, and the data in display memory A2 is displayed, multiple data can be displayed according to the predetermined display priority in the same way as in the conventional method. The overlap condition of windows A to C is determined, and for a window with a low display priority, window data obtained by dividing the window area excluding the overlapped portion into multiple rectangles is stored in the display memory. For example, FIG. 3 (al) to (a
In the order shown in 3), the images are finally displayed in the manner shown in figure (a3).

The above-mentioned FIGS. 1(bl) to (b3) are examples of the above-mentioned real-time local processing, for example, when window B is designated as the object of the real-time local processing.

In this case, the main control unit (liver υ) 5 first operates as shown in FIG. 2(a).
In the mask memory 3 shown in 3, for the area corresponding to the area of window B, mask data for displaying the data of display memory B4 (the corresponding area is ``l'', the other areas are ``0'' (Refer to processing steps 100 and 101 in Figure 2 (bl).) Next, the data in the real-time local processing specification window B in the working memory 1 is transferred to the display memory. B4
Transfer it to and memorize it. (See processing step 102 in FIG. 2(bl)) Real-time local processing from the operator (for example,
When the above-mentioned airbrush processing 1 handwriting input processing, etc.) is executed by the main control unit (MPU) 5, the result of the real-time local processing is written to the corresponding area of the working memory 1, and The contents are immediately displayed in the display memory A2. Then, it is transferred to the area of the corresponding window B in the display memory B4.

During the real-time local processing, for pixels whose mask memory 3 is 1°, the contents of the display memory B4, that is, the data of the window B to which the results of the real-time local processing are transferred, are displayed on the display screen. For pixels whose mask memory 3 is at 0°, the contents of the display memory A2, that is, the data of windows other than window B are displayed.

Therefore, the data in window B will be displayed in the highest priority manner without being covered by other windows. (Figure 1 (b2) and Figure 2 (bl
), (b2) (7) Processing steps 1o3~]o6
(See) FIG. 1(b3) shows an example of the display when the real-time local processing is completed.

In case 2, the mask memory 3 is changed, specifically, the contents of the mask memory 3 are reset so that the data in the display memory A2 is displayed in the entire area of the display screen.

As a result, similar to the above real-time local processing,
By simply displaying through the mask memory 3, only the data in the display memory A2, that is, the data in a plurality of windows including the real-time local processing results are displayed according to the original display priority order. (Figure 2 (bl)
, (b2) processing steps 103.107.108
(See) As described above, the present invention provides a display device having a multi-window function that transfers a plurality of window data processed in the working memory to the display memory A based on display priority and displays the data. For example, when a window for real-time local processing is specified, a mask memory is used to instruct display of the entire area of the specified window, and only the data of the specified window is displayed in the display area of the window. By providing a display memory B for storing data in the mask memory and selectively displaying the contents of the display memories A and B based on the data specified in the mask memory, the contents of the display memories A and B are selectively displayed during the real-time local processing. The entire area of the window to be processed is displayed without changing the contents of the display memory A, and when the real-time local processing is completed, the contents are transferred to the display memory that stores the display data according to the original display priority order. The feature is that it is displayed.

Although the above embodiment has been explained using local processing that is processed in real time, such as airbrush processing, the present invention is limited to local processing, that is, processing that does not require communication with a host computer. It goes without saying that it will not be done.

〔Effect of the invention〕

As explained above in detail, the display control method in the multi-window system of the present invention transfers a plurality of window data processed in the working memory to the display memory A based on the display priority order and displays the data. In a display device equipped with a multi-window function,
and a mask memory for specifying the entire area of the specified window when a specific window to be displayed is specified.

A display memory B is provided to store the data of the designated window in the display area of the window, and while the data of the window is being processed, the window data of the specific display target is stored in the working memory. 9 to display memory A and display memory B, and the area designated by the mask memory is transferred to display memory B.
For areas not specified by the mask memory, the contents of display memory A are displayed, so for example, at the start of real-time local processing, the mask memory is By simply creating data and sequentially transferring the processing results to the display memo IJB, the entire area of window B to be processed can be displayed in real time, and when the real-time local processing is finished, the mask memory Since the original display state can be restored simply by canceling (resetting) the mask, data transfer time is reduced and real-time local processing time can be shortened.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the present invention in detail. FIG. 2 is a diagram showing an embodiment of the present invention. FIG. 3 is a diagram explaining a display control method in a conventional multi-window system. It is. In the drawing, 1 is working memory. 3 is mask memory. 4 is display memory B. 5 is a main control unit (MPIJ). 100 to 108 are processing steps. 2 is display memory A. 3a is a mask data creation section. Working memory display memory A Memory A for displaying working memory from MPU Figure (Part 1) Figure 1 (Part 2) Figure 1 (Part 4) Figure (Part 1) (A) (B) (b2 ) (bl) Diagram showing an embodiment of the present invention (Part 3) Diagram showing an embodiment of the present invention (Part 2) Memory table for memory display work for f magazine sail. Memory table for IY 屹. (a3) Diagram explaining the display control method in a conventional multi-window system (c)

Claims (1)

[Claims] A plurality of window data processed in the working memory (1) are stored in the display memory A based on display priority.
(2) in a display device equipped with a multi-window function that transfers data to and displays a window, when a specific window to be displayed is specified, a mask memory (3) that specifies the entire area of the specified window; A display memory B (4) is provided to store the data of the specified window in the display area of the window, and while the data of the window is being processed, the window data of the specific display target is used for the above-mentioned work. Display memory A (2) and display memory B (4) are connected via memory (1).
), and for the area specified in the mask memory (3) above,
A multi-window system characterized by displaying the contents of the display memory B (4), and displaying the contents of the display memory A (2) for areas not specified by the mask memory (3). display control method.