JPH0785292A - Graphics display system - Google Patents

Abstract

PURPOSE:To make it possible to use the same two-dimensional graphics display instructing part for different kinds of equipment display system capable of displaying two-dimensional graphics and three-dimensional graphics in an interlocking state. CONSTITUTION:A two-dimensional graphics display instructing part 112 and a three-dimensional graphics display instructing part 113 are dividedly included in individual user programs 110, 111 and information is mutually transferred through a communication part 140. The instructing parts 112, 113 can display graphics by respectively accessing the functions of a two-dimensional graphics display function providing part 120 and a three-dimensional graphics display function providing part 130.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphics display system for a graphics display device, and more particularly to a graphics display system.
The present invention relates to a display system that displays three-dimensional graphics in conjunction with each other.

[0002]

2. Description of the Related Art Conventionally, in this type of graphic display system, the function of displaying two-dimensional graphics and the function of displaying three-dimensional graphics are mixedly implemented in the same program. Usually, a library program that provides a two-dimensional graphics display function provides a common interface between different models, whereas a library program that provides a three-dimensional graphics display function often has a different interface for each model. For this reason, in the conventional graphic display system, even if a program for simultaneously displaying two-dimensional graphics and three-dimensional graphics is created on a certain model, the entire program must be rewritten in order to use it on another model. did not become.

Referring to FIG. 5, in the conventional graphics display system, the two-dimensional graphics display instruction section 9 is included in one user program 910 for the computer A.
12 and the three-dimensional graphics display instruction unit 913 are mixed. If the above-mentioned premise is adopted here, the two-dimensional graphics display interface 925 on the computer A and the two-dimensional graphics display interface 975 on the computer B are the same,
The three-dimensional graphics display interface 935 on the computer A and the three-dimensional graphics display interface 985 on the computer B are different. Therefore, the same three-dimensional graphics display instruction unit 913 on the computer A and the three-dimensional graphics display instruction unit 963 on the computer B cannot be used. Therefore, although the interface 925 and the interface 975 are common, the two-dimensional graphics display instruction unit 912 on the computer A and the two-dimensional graphics display instruction unit 962 on the computer B are provided.
And had to be created as separate ones.

As a specific example, a key input for moving an object displayed as three-dimensional graphics on the screen (hereinafter referred to as a three-dimensional event) and a process on a menu screen displayed as two-dimensional graphics are performed. A program example for handling a key input for selection (hereinafter referred to as a two-dimensional event) will be described.

For example, it is assumed that the computer A is a computer that handles two-dimensional events and three-dimensional events separately, and the graphics display is performed according to the procedure shown in the flowchart of FIG. Referring to FIG. 6, first, it is checked whether or not a two-dimensional event has occurred (step 511), and if it has occurred, processing for that two-dimensional event is performed (step 512). In the processing for this two-dimensional event, the two-dimensional graphics display instructing unit 912 instructs the two-dimensional graphics to be displayed after calculating the position where the graphics should be displayed. After the processing for this two-dimensional event is completed, the presence or absence of the two-dimensional event is checked again (step 511). If no two-dimensional event has occurred in the determination in step 511, it is checked whether or not a three-dimensional event has occurred (step 513). If so, the three-dimensional event is processed (step 514). . In the processing for this three-dimensional event, the display of the three-dimensional graphics is instructed by the three-dimensional graphics display instructing unit 913 after calculating the position where the graphics should be displayed. After the processing for this three-dimensional event is completed, it is checked again whether or not a two-dimensional event has occurred (step 511). If the three-dimensional event has not occurred in the determination in step 513, the determination in step 511 is performed again.

As another example, computer B has two
It is assumed that the computer handles a three-dimensional event and a three-dimensional event without distinction, and graphics display is performed in the procedure shown in the flowchart of FIG. 7. Referring to FIG. 7, first, whether or not an event has occurred is checked (step 5
21) If the event has not occurred, step 521 is repeated until it occurs. If an event occurs,
In step 522, the type of event is checked, and if it is a two-dimensional event, the processing for the two-dimensional event is performed (step 5
23) If it is a three-dimensional event, processing for the three-dimensional event is performed (step 524).

As described above, in the conventional graphics display system, the computers A and B having different architectures need to prepare different user programs as shown in FIGS. 6 and 7, respectively.

[0008]

In the above-mentioned conventional graphics display system, the target model is different.
Different interfaces for displaying 3D graphics
Even if the two-dimensional graphics display interface is the same, there is a problem that the entire program must be rewritten for each model. The present invention solves the problems of such a conventional graphics display system,
It is intended to provide a highly portable graphics display system.

[0009]

In order to solve the above problems, in the graphics display system of the present invention, a two-dimensional graphics display function providing means for providing a common interface between information processing apparatuses of different models; Three-dimensional graphics display function providing means for providing different interfaces for each model of information processing apparatus; two-dimensional graphics display instruction means for instructing the two-dimensional graphics display function providing means to display two-dimensional graphics Three-dimensional graphics display instruction means for instructing the three-dimensional graphics display function providing means to display three-dimensional graphics; two-dimensional graphics display instruction means and three-dimensional graphics display instruction means And communication means for communicating between them.

Further, there are provided a two-dimensional graphics display function providing means for providing a common interface between information processing apparatuses of different models, and a three-dimensional graphics display function providing means for providing an interface different for each information processing apparatus model. A graphics display system having inter-program communication function providing means for providing a function of exchanging messages between programs; instructing the two-dimensional graphics display function providing means to display two-dimensional graphics; A three-dimensional graphics display instruction means, a first communication instruction means for instructing the inter-program communication function providing means to transfer a message to another program, and another via the inter-program communication function providing means. First to receive messages from programs
A two-dimensional graphics display program, which is a program including a communication receiving means, and a three-dimensional graphics display instructing means for instructing the three-dimensional graphics display function providing means to display three-dimensional graphics, Second communication instructing means for instructing the inter-program communication function providing means to transfer a message to the two-dimensional graphics display program; and the two-dimensional graphics display program via the inter-program communication function providing means. And a three-dimensional graphics display program which is a program including second communication receiving means for receiving the message.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the graphics display system of the present invention will be described in detail with reference to the drawings.

Referring to FIG. 1, a graphics display system according to an embodiment of the present invention provides a two-dimensional graphics display function providing unit 120 for providing a two-dimensional graphics display function and a three-dimensional graphics display function. And a library program including the three-dimensional graphics display function providing unit 130. Also, the first user program 110 including a two-dimensional graphics display instruction unit 112 for instructing two-dimensional graphics display, and 3
Second user program 11 including three-dimensional graphics display instruction unit 113 for instructing three-dimensional graphics display
The communication unit 140 includes a 1st, 2D graphics display instruction unit 112 and a 3D graphics display instruction unit 113, and a communication unit 140 for instructing a communication procedure.

Two-dimensional graphics display function providing unit 12
Reference numeral 0 is a library program that provides a two-dimensional graphics function to the user program. By calling the library of the two-dimensional graphics display function providing unit 120 from the user program, two-dimensional graphics can be displayed. it can. Since the two-dimensional graphics display function providing unit itself depends on the instruction set architecture of the computer, for example, the two-dimensional graphics display function providing unit 120 of the computer A and the two-dimensional graphics display function providing unit 17 of the computer B.
Although different in content from 0, these interfaces 12
In many cases, 5 and 175 are common to different models.

On the other hand, the three-dimensional graphics display function providing unit 130 is a library program for providing a three-dimensional graphics function to the user program, and the library of the three-dimensional graphics display function providing unit 130 is supplied from the user program. By expanding, three-dimensional graphics can be displayed. This 3D graphics display function providing unit is often provided individually, and for example, the interfaces 135 and 185 are often different for each model.

The three-dimensional graphics display instructing section 113 calls up the three-dimensional graphics display function providing section 130 via the interface 135 to display the three-dimensional graphics. Interface 1 as described above
Since 35 is often different for each model, the three-dimensional graphics display instruction unit 113 is also newly created for each model.

On the other hand, the two-dimensional graphics display instruction unit 112 displays the two-dimensional graphics by calling out the two-dimensional graphics display function providing unit 120 via the interface 125. As described above, since the interface 125 is often the same for different models, the same two-dimensional graphics display instruction unit 112 is used for different models if the program handles only two-dimensional graphics. It is possible.

In the present invention, the two-dimensional graphics display instruction unit 112 and the three-dimensional graphics display instruction unit 113 are included.
And 2 are divided into different user programs 110 and 111, respectively, and therefore, the communication unit 140 is provided to transfer information between the two-dimensional graphics display instruction unit 112 and the three-dimensional graphics display instruction unit 113. . This communication unit 140 is usually operated by an operating system.
It is provided as an interprocess communication function.

As a concrete example, a key input (hereinafter referred to as a three-dimensional event) for moving an object displayed as three-dimensional graphics on the screen using the same example as the description of the prior art, and 2 A program example for handling a key input (hereinafter, referred to as a two-dimensional event) for selecting a process on a menu screen displayed as three-dimensional graphics will be described. Unlike the implementation method of the prior art, in the present invention, the two-dimensional display user program 110 is used.
And the user program 111 for three-dimensional display are divided, the user program 110 for two-dimensional display
An event (hereinafter referred to as a communication event) for instructing the dimension display user program 111 to perform processing is transmitted via the communication unit 140. In this program example, this communication event is generated by the user program 110 for two-dimensional display for three-dimensional display when "end of three-dimensional graphic display" is selected on the menu screen displayed as two-dimensional graphics. It is used to notify the user program 111 that the three-dimensional graphics display will be terminated.

In the user program for two-dimensional graphics display of the present invention, the computer A and the computer B are
The same user programs 110 and 160 can be used for and. Referring to FIG. 2, the two-dimensional graphics display user program checks in step 201 whether a two-dimensional event has occurred. Until the event occurs
The process of step 201 is repeated. This step 2
As the processing of 01, for example, a method of waiting for the occurrence of an interrupt due to a key input, a method of writing by writing the presence or absence of an event in a predetermined storage area, or the like can be considered. Then 2
If a dimensional event has occurred, then in step 202 the processing for that two-dimensional event is performed. In the present program example, as the content of the processing for the two-dimensional event, the processing selected on the menu screen is checked, and the processing is branched to each processing routine. For example, when the end of the 3D graphics display is selected, the communication event is notified to the 3D graphics display user program by the interprocess communication function. After the processing for this two-dimensional event is completed, the occurrence of the two-dimensional event is checked again in step 201.

On the other hand, the computer programs A and B use different programs 111 and 161 as the user program for three-dimensional graphics display, respectively.
For example, assuming that the computer A is a computer that handles each event individually, the graphics display can be performed by the procedure shown in the flowchart of FIG. Referring to FIG. 3, the user program 111 for displaying three-dimensional graphics on the computer A checks in step 311 whether or not a communication event has occurred, and if so, performs processing for the communication event (step 312).
As the processing for this communication event, for example, when the end of the three-dimensional graphics display is notified, the three-dimensional graphics display instructing unit 113 terminates the three-dimensional graphics display so that the three-dimensional display is performed. Processing such as erasing the area is performed. After the processing for this communication event is completed, it is checked again in step 311 whether a communication event has occurred. If no communication event has occurred in step 311, it is checked in step 313 whether a three-dimensional event has occurred. If the three-dimensional event has not occurred, the process returns to step 311 again, but if the three-dimensional event has occurred, the processing for the three-dimensional event is performed (step 314).

Assuming that the computer B is a computer that handles each event without distinction, the three-dimensional graphics can be displayed by the procedure shown in the flowchart of FIG. Referring to FIG. 4, a user program 161 for displaying three-dimensional graphics on the computer B
Checks in step 321 whether an event has occurred. The process of step 321 is repeated until an event occurs. The event here includes a three-dimensional event and a communication event. When an event occurs, processing for the event is performed (step 322). The processing of the event performed in this step 322 is similar to the above-described example of the three-dimensional event or the communication event.

As described above, the computers A and B having different architectures have different three-dimensional graphics display user programs as shown in FIGS. 3 and 4, respectively. A common one can be used as shown in FIG.

[0023]

As described above, according to the graphic display system of the present invention, it is possible to use the same two-dimensional graphics display instruction section between different models, and the user program for each model can be used. There is an effect that it becomes unnecessary to rewrite.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a graphic display system of the present invention.

FIG. 2 is a flowchart of a two-dimensional graphics display instructing unit according to an embodiment of the present invention.

FIG. 3 is a flow chart of a three-dimensional graphics display instructing unit on a computer A according to an embodiment of the present invention.

FIG. 4 is a flowchart of a three-dimensional graphics display instructing unit on a computer B according to an embodiment of the present invention.

FIG. 5 is a configuration diagram of an embodiment of a graphic display system according to the related art.

FIG. 6 is a flow chart of a user program on a computer A according to an embodiment of the present invention.

FIG. 7 is a flowchart of a user program on a computer B according to an embodiment of the present invention.

[Explanation of symbols]

110, 111, 160, 161 User program 112, 162 Two-dimensional graphics display instruction section 113, 163 Three-dimensional graphics display instruction section 120, 170 Two-dimensional graphics display function providing section 125, 175 Two-dimensional graphics display function providing Interfaces 130, 180 3D graphics display function providing unit 135, 185 3D graphics display function providing interface 140, 190 Communication unit 910, 960 User program 912, 962 2D graphics display instruction unit 913, 963 3D graphics Display instructing unit 920,970 2D graphics display function providing unit 925,975 2D graphics display function providing interface 930,980 3D graphics display function providing unit 93 5,985 3D graphics display function interface

Claims (2)

[Claims] 1. A two-dimensional graphics display function providing means for providing a common interface between information processing devices of different models; and a three-dimensional graphics display function providing means for providing a different interface for each information processing device model. Two-dimensional graphics display instructing means for instructing the two-dimensional graphics display function providing means to display two-dimensional graphics; and three-dimensional graphics display for the three-dimensional graphics display function providing means. 3D graphics display instructing means for instructing; 2 above
A graphics display system comprising: a three-dimensional graphics display instruction means and a communication means for communicating between the three-dimensional graphics display instruction means. 2. A two-dimensional graphics display function providing means for providing a common interface between information processing apparatuses of different models, and a three-dimensional graphics display function providing means for providing an interface different for each information processing apparatus model. A graphics display system having inter-program communication function providing means for providing a function of exchanging messages between programs; instructing the two-dimensional graphics display function providing means to display two-dimensional graphics; A three-dimensional graphics display instruction means, a first communication instruction means for instructing the inter-program communication function providing means to transfer a message to another program, and another via the inter-program communication function providing means. A first communication receiving means for receiving a message from the program. A two-dimensional graphics display program which is a program; three-dimensional graphics display instruction means for instructing the three-dimensional graphics display function providing means to display three-dimensional graphics, and a message to the two-dimensional graphics display program Second communication instructing means for instructing the inter-program communication function providing means to transfer the second program, and second receiving the message from the two-dimensional graphics display program via the inter-program communication function providing means. And a three-dimensional graphics display program, which is a program including the communication receiving means.