JPH0696230A - Plane painting pattern display system - Google Patents

Abstract

PURPOSE:To provide the system for efficiently displaying a plane painting pattern data used for an activated process concerning the plane painting pattern display system for a system provided with plural processes for processing graphics. CONSTITUTION:The plane painting pattern data are stored in a pattern data storage part 4, management information containing the identification code of a data processing part 1 and the leading address of the plane painting pattern data on the pattern data storage part 4, is stored in a management information storage part 5, when the management information of the data processing part 1 exists in the management information storage part 5, a managing means 6 stores the information at the prescribed position of the management information storage part 5 and when the information is absent, the means 6 loads the plane painting pattern data from an external storage device 3 to the empty area of the pattern data storage part 4, prepares the management information containing the leading address and stores it at the prescribed position. Basing on the management information stored at the prescribed position, a transfer means 7 transfers the plane painting pattern data from the pattern data storage part 4 to the display area of a display memory 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface painting pattern display system. In particular, the present invention relates to a surface painting pattern display method in a multi-process system having a plurality of application programs (hereinafter referred to as processes) for processing graphics.

In recent years, a multi-process system in which a plurality of processes for processing graphics are operated on one computer system has been widely implemented. The surface fill pattern is a pattern used to clearly display each component part in a figure such as a bar graph or a pie chart by hatching or dots composed of diagonal lines or vertical lines, and is usually unique to each process. It uses multiple surface painting patterns. Therefore, when the process is switched, a surface coating pattern display method that can display the surface coating pattern data used by the process at low cost in a short time is desired.

[0003]

2. Description of the Related Art FIG. 8 is an explanatory view (No. 1) of a conventional surface painting pattern display, showing control at the time of starting a process. (1) When any of the plurality of processes 1, 2, ... N is activated, the start of processing is notified. (2) The surface painting pattern management unit reads the surface painting pattern data used by the process from the disk device, and (3) loads it into the surface painting pattern data storage memory. After that, the process reads the surface-painting pattern data from the surface-painting pattern data storage memory as necessary and displays it on the display unit.

FIG. 9 is an explanatory view (No. 2) of the conventional surface painting pattern display, showing the control at the end of the process. (1) The end of processing is notified from any of the plurality of processes 1, 2, ... N. (2) The fill pattern management unit reads the fill pattern data from the fill pattern data storage memory and (3) saves it in the disk device.

Therefore, each time the process changes, new surface painting pattern data is loaded from the disk device into the memory and used, and when the process is finished and the updating of the surface painting pattern data is requested by the start of the next process, it is used. The surface painting pattern data that had been saved was saved to the disk device.

[0006]

As described above, according to the conventional method, the surface coating pattern data is loaded / saved from / to the disk device every time the process changes.
It took a long time each time. Therefore, when executing a plurality of processes, the processing performance of the computer system is significantly deteriorated, and a dedicated memory for storing the surface painting pattern data is required, resulting in an increase in system cost. It was

It is an object of the present invention to provide a surface coating pattern display system which can prepare surface coating pattern data used by the process at a low cost and in a short time when the process is switched. .

[0008]

FIG. 1 shows a block diagram of the principle of the present invention. In the figure, 9 is a display device, 2 is a display memory for displaying a graphic on the display device 9 by storing the graphic data in a display area corresponding to the display surface of the display device 9, and 3 is surface painting pattern data. The external storage device 1 for storing the data is a plurality of data processing units for displaying the surface painting pattern data on the display device 9 based on the surface painting pattern data stored in the external storage device 3. Outside the display area, a pattern data storage unit 5 for storing the surface painting pattern data corresponding to the data processing unit 1 stores the identification code and the surface painting pattern data corresponding to the data processing unit 1. The management information storage unit 6 for storing management information including the start address of the area of the pattern data storage unit 4 searches the management information storage unit 5 based on the identification code of the data processing unit 1, and When the physical information is searched, the management information is stored in a predetermined position of the management information storage unit 5, and when it is not searched, the surface coating pattern data is read from the external storage device 3 and the pattern data storage unit 4 is empty. The management means 7 stores the management information including the identification code of the data processing unit 1 and the start address of the empty area and stores the management information in a predetermined position of the management information storage unit 5 while storing the management information in the area. It is a transfer unit that transfers the fill pattern data from the pattern data storage unit 4 to the display area of the display memory 2 based on the management information stored in a predetermined position of the unit 5.

[0009]

According to the present invention, the display area corresponding to the display surface of the display device 9 has the display memory 2 for storing the data of the figure to be displayed and the external storage device 3 for storing the surface painting pattern data. In the surface coating pattern display method in which the plurality of data processing units 1 display the surface coating pattern data on the display device 9 based on the surface coating pattern data stored in the external storage device 3, the pattern data storage unit 4 stores Outside the display area of the display memory 2, the surface painting pattern data is stored corresponding to the data processing unit 1, and the management information storage unit 4 corresponds to the data processing unit 1 and its identification code and the surface painting pattern data. Is stored in the pattern data storage unit 4, and the management means 6 searches the management information storage unit 5 based on the identification code of the data processing unit 1. When the management information is searched, the management information is stored in a predetermined position of the management information storage unit 5, and when the management information is not searched, the surface painting pattern data is read from the external storage device 3 and stored in the pattern data storage unit 4. The management information including the identification code of the data processing section 1 and the start address of the free area is created and stored in a predetermined position of the management information storage section 5 while being stored in the free area, and the transfer means 7 stores the management information. Based on the management information stored in the predetermined position of the section 5, the surface painting pattern data is transferred from the pattern data storage section 4 to the display area of the display memory 2, so that the data processing section 1 uses the pattern data of the display memory 2. The surface coating pattern is displayed on the display device 9 by transferring the surface coating pattern data stored in the storage unit 4 to the display area of the display memory 2.

[0010]

FIG. 2 is a block diagram showing an embodiment of the present invention. Throughout the drawings, the same reference numerals indicate the same or similar components.

According to the present invention, the surface painting pattern data is set in the non-display area of the frame memory 2a, and the cache management table 5a for managing the same is provided, whereby a plurality of processes can efficiently use the unique surface painting pattern. To configure.

The disk device 3a stores, for each process, surface painting pattern data used by that process (see FIG. 7). The frame memory 2a is a memory in which pixels on the display unit (for example, cathode ray tube CRT, not shown) 9a and memory cells (bits) thereof have a one-to-one correspondence, and graphic data to be displayed on the display unit 9a is stored in the frame memory 2a. It has a display area to be stored and a non-display area remaining outside the display area due to the binary address configuration. The non-display area stores the surface painting pattern data corresponding to a plurality of processes (see FIG. 4). Similar to the operation of the cache memory in the computer system, the non-display area has a function of copying the surface painting pattern data of a frequently used process from the disk device 3a and facilitating the display of the surface painting pattern by the process. The surface painting pattern data is set in the non-display area corresponding to the process, but since the non-display area has a limited storage capacity, the cache management information table 5a is provided and the cache management unit 6a manages it.

As shown in FIG. 3, the cache management table 5a stores a plurality of sets of cache management information. The cache management information corresponds to each process, and its identification code (process ID) and the non-existence of the frame memory 2a. It is composed of data including the storage start address (hereinafter, referred to as start coordinate) of the pattern set in the display area. The higher the registered cache management information in the table is, the higher the priority is. That is, at the head of the table, cache management information for the currently operating process or cache management information corresponding to the most recently operated process is stored. Each time new cache management information is inserted at the head of the table, the cache management information in the table is pushed down. Therefore, the lowest cache management information may be evicted from the table when new cache management information is inserted.

As shown in FIG. 7, the pattern data setting unit 6b reads the surface painting pattern data from the disk device 3a under the control of the cache management unit 6a and stores it in the non-display area of the frame memory 2a.

As shown in FIG. 4, the copying section 7a reads out the corresponding surface painting pattern data from the non-display area of the frame memory 2a based on the instruction of the operating process, and sequentially determines the required non-display area. The face painting pattern is displayed on the display unit 9a by storing it in the storage position.

The operation of the embodiment of the present invention will be described with reference to FIG. (1) When the process changes, the newly started process notifies the cache management unit 6a of the process ID. (2-1) The cache management unit 6a receives the notified process ID
The cache management table 5a is searched based on That is, it is checked whether or not there is cache management information having a process ID that matches the notified process ID. When the target cache management information exists, the cache management information is set to the cache management table as shown in FIG.
The cache management information stored in the upper part is moved to the lower part one by one while being inserted into the head of 5a. (2-2) If the target cache management information does not exist as a result of the search, the area on the non-display area of the frame memory 2a not registered in the cache management table 5a (that is, in the non-display area of the frame memory 2a , Find the area where the fill pattern data has not been set). When the area exists, cache management information including the start coordinates and the ID of the process is created, and the cache management table is created.
Insert at the beginning of 5a. Therefore, the cache management information of the existing cache management table 5a is moved downward one by one. (2-3) Further, as a result of the search, when the target cache management information does not exist, there is no unregistered space in the cache management table 5a (that is, the fill pattern data in the non-display area of the frame memory 2a). If there is no free space for setting), the cache management information including the start coordinates of the lowest cache management information in the table and the ID of the process is created as shown in FIG.
Insert at the beginning of. Therefore, the cache management table 5a
The existing cache management information of is moved down one by one,
The lowest cache management information in the table will be banished. (3) If the target cache management information does not exist as a result of the search ((2-2) or (2-3) above), the cache management unit 6a informs the pattern data setting unit 6b of the process concerned. The ID and the start coordinates of the cache management information created in (2-2) or (2-3) above are specified, and the setting of the fill pattern data is requested. (4) As shown in FIG. 7, the pattern data setting unit 6b, based on the designated process ID and start coordinate, sets the surface painting pattern data used by the process from the area of the disk device 3a corresponding to the process ID. Read and load to the address specified by the start coordinates in the non-display area of the frame memory 2a. (5) The copying unit 7a starts the cache management information registered at the head position of the cache management table 5a when the process requests the display of the fill pattern by designating the address of the display area of the frame memory 2a. The required fill pattern data is read from the address of the non-display area of the frame memory 2a specified by the coordinates, and (6) the read fill pattern data is stored in the display area of the frame memory 2a addressed by the process. As a result, the surface painting pattern is displayed on the display unit 9a.

When the process is terminated, the process ID area of the cache management information is cleared or a special code indicating unused is set to enable the non-display area of the frame memory 2a with a limited storage capacity. Therefore, the frequency of loading the surface painting pattern data at the time of process switching can be reduced, and the processing capacity of the system can be improved.

[0018]

As described above, according to the present invention,
The surface painting pattern data is stored in the non-display area of the frame memory corresponding to the process, and the management information including the process identification code and the start address on the non-display area where the surface painting pattern data is stored is management information. The management means stores the management information of the data processing unit in a predetermined position of the management information storage unit when the management information of the data processing unit exists in the storage unit, and stores the management information from the external storage device when the management information does not exist. Since the paint pattern data is loaded into the empty area of the non-display area and the management information including the start address is created and stored in the predetermined position, the process is based on the management information stored in the predetermined position. Since the fill pattern data is transferred from the non-display area to the display area of the display memory and the fill pattern is displayed on the display device, the fill pattern at the time of process switching is used. Ndeta of the load / save can be minimized, there is an effect that it is possible to improve the processing capability of the system by reducing the process switching time.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a cache management table.

FIG. 4 is a diagram illustrating surface painting pattern data and copying thereof.

FIG. 5 is an operation explanatory diagram (1) of the cache management table.

FIG. 6 is an explanatory diagram of the operation of the cache management table (No. 2)

FIG. 7 is an explanatory diagram of a loading operation of surface painting pattern data.

FIG. 8 is an explanatory view of a surface coating pattern display of a conventional example (No. 1).

FIG. 9 is an explanatory view of a surface coating pattern display of a conventional example (No. 2).

[Explanation of symbols]

 1 data processing unit 2 display memory 3 external storage device 4 pattern data storage unit 5 management information storage unit 6 management means 7 transfer means 9 display device 1a process 2a frame memory 3a disk device 5a cache management table 6a cache management unit 6b pattern data setting Copy 7a Copy 9a Display

Claims (3)

[Claims] 1. A display device (9) by storing graphic data in a display area corresponding to the display surface of the display device (9).
It has a display memory (2) for displaying graphics and an external storage device (3) for storing surface painting pattern data, and a plurality of data processing units (1) are stored in the external storage device (3). In the surface painting pattern display method in which the surface painting pattern data is displayed on the display device (9) based on the surface painting pattern data, the data processing unit (1) is provided outside the display area of the display memory (2). Pattern data storage section (4) for storing surface coating pattern data, and the pattern data storage section (4) storing the identification code and the surface coating pattern data corresponding to the data processing section (1). Management information storage unit (5) that stores management information including the start address of the area
Then, the management information storage unit (5) is searched based on the identification code of the data processing unit (1), and when the management information is retrieved, the management information is stored in the management information storage unit (5). The external storage device is stored in a predetermined position and is not searched
The surface painting pattern data is read from (3) and stored in the empty area of the pattern data storage section (4), and the management information including the identification code of the data processing section (1) and the start address of the empty area is stored. Based on the management means (6) which is created and stored in the predetermined position of the management information storage unit (5), and the management information stored in the predetermined position of the management information storage unit (5), the pattern A surface painting pattern display method comprising: a transfer unit (7) for transferring the surface painting pattern data from the data storage unit (4) to the display area of the display memory (2). 2. The management information storage unit (5) has a table structure, the predetermined position is the head position of the table, and the management unit (6) stores the management information retrieved or created in the table. 2. The surface painting pattern display method according to claim 1, wherein the other management information stored below the head position is moved to the lower position one by one while being inserted into the head position. 3. The management means (6) reads from the external storage device (3) when no management information is retrieved and when the table of the management information storage part (5) is full. The read surface painting pattern data is stored in the area of the pattern data storage unit (4) specified by the start address in the management information stored at the bottom of the table, and the management information having that address as the start address is stored. 3. The surface painting pattern display method according to claim 1 or 2, characterized in that the data is created and stored in the head position of the table of the management information storage unit (5).