JPH05334112A - Method for testing bit map display operation - Google Patents

Abstract

PURPOSE:To accurately and easily find out an operation area by comparing data to be tested with comparing data at every dot and when a different dot is present thereon, deciding the data to be tested are erroneous. CONSTITUTION:An operator executes specific plotting on a bit map display deseired to confirm a display operation by operating a keyboard 7. Input data to the display 3 are sent to a plotting control part 3a by a control part 4, stored in a plotting memory 3b and simultaneously displayed on a display 3c. On the other hand, correct bit map data are previously stored in a data storing disk 5. Data 9 to be tested which are displayed on the display 3c and comparing data 11 are fetched to a comparing means 10 and compared with each other in each dot. At the time of detecting a discordant dot, the means 10 decides the data 9 are erroneous and outputs a display signal so that the error is displayed to a display device 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bitmap display operation test method for determining whether or not data to be displayed on a bitmap display is correct and for performing a display test on the bitmap display.

[0002]

2. Description of the Related Art Generally, a bitmap display is used as an output device of a computer system.
The bitmap display is a display that can control ON / OFF of bits for each dot of the display screen, and can perform all display in bit units. Then, a plurality of drawing and line drawing functions are realized by hardware or software. When changing the specifications of such a bitmap display to improve the operation speed, etc., change the hardware or software, but at this time, test whether the changed bitmap display is operating properly. There is a need to.

FIG. 2 shows a test method for a conventional bitmap display. That is, in the conventional test method, first, a preset bit map display (hereinafter, referred to as comparison bit map display) 1 that operates correctly is prepared, and separately from this, a bit map display to be tested (hereinafter, bit to be tested). Prepare 2). The test target bitmap display 2 includes display hardware and software. Then, predetermined test data is displayed, and the operator visually compares the data to determine whether or not the test target bitmap display 2 is correct.

For example, when a circle is considered as the display data, the comparison bit map display 1 naturally displays a true circle, but in the case of the test bit map display 2, the display software or a display circuit thereof is used. If there is any error, a distorted circle may be displayed. In such a case, the operator determines that there is an error in the test target bitmap display 2 due to the difference in the shape of the display data, and checks the software or hardware.

[0005]

However, since the conventional test method is only judged by the operator with the naked eye as described above, for example, when only one dot is erroneous, the recognition is very difficult. There is a problem that it is ambiguous to judge whether the display operation is correctly performed, such as difficulty. In addition, such a visual determination method has a problem that it takes a lot of time and a heavy burden is placed on an operator. The present invention has been made to solve the above conventional problems, and an object of the present invention is to provide a bitmap display operation test method capable of accurately and easily performing an operation test of a bitmap display.

[0006]

A bit map display operation test method of the present invention comprises test target data to be displayed on a bit map display, and comparison data for testing the correctness of the test target data, The test data and the comparison data are compared dot by dot, and if there is a different dot, it is determined that the test data is erroneous.

[0007]

In the bit map display operation test method of the present invention, as the data to be displayed on the test bit map display, the input data to the display which is the actual indicator of the test bit map display is extracted and tested. Target data. On the other hand, as correct bitmap data for testing whether the test target data is correct or not, comparison data in which the display data on the bitmap display screen when the same operation as the test target data is performed is prepared in advance. The comparing means compares the test target data and the comparison data dot by dot, and if there is a different dot, the test target data is determined to be erroneous, and the result is displayed on the display device. If all the dots match, it is determined that the operation of the test bitmap display is normal.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a flowchart showing an embodiment of a bitmap display operation test method of the present invention. Prior to this, the configuration of a bitmap display operation test device for carrying out the method of the present invention will be described. Figure 3
FIG. 3 is a block diagram showing the bitmap display operation test device. The device shown in the figure comprises a test target bitmap display 3, a control unit 4, and a data storage disk 5.
And a reference memory 6, a keyboard 7, and a display device 8.

The test bit map display (hereinafter, simply referred to as a bit map display) 3 comprises a drawing control section 3a, a drawing memory 3b and a display 3c. The drawing controller 3a is composed of drawing hardware or drawing software, and generates a drawing signal for each dot to the display 3c in accordance with a display signal from the controller 4. In addition, the drawing memory 3b
Is a frame buffer memory for temporarily storing the drawing signal in 1-dot units from the drawing control unit 3a, and its output is output to the comparison unit 10 of the control unit 4 as the test target data 9 to be displayed on the bitmap display 3. It is configured to be input. Furthermore, the display 3c is a CRT
It is a display device composed of the above.

The control unit 4 is a main body of a control device of a computer including a processor and the like, and has a function of controlling each unit such as display control. The comparison means 10 is composed of a dedicated processor or program, and compares the test target data 9 and the comparison data 11 described later dot by dot. If there is a different dot, the test target data 9 is an error. It has a function to determine that there is.

The data storage disk 5 comprises a floppy disk device or a hard disk device, and is a device for storing comparison data for comparing the test object data 9. Further, the comparison data is bitmap data that captures the display on the bitmap display screen when a certain operation is performed on the bitmap display that is confirmed to perform the correct display operation. The reference memory 6 is a memory for reading the comparison data stored in the data storage disk 5, temporarily storing the comparison data, and sending the stored comparison data 11 to the comparison means 10. Further, the keyboard 7 is an input device for an operator to input, and the display device 8 is an output device for displaying the determination result of the test target data determined by the comparison means 10.

The bit map display operation test method shown in FIG. 1 will be described below. First, the operator operates the keyboard 7 to perform a specific drawing on the bitmap display 3 whose display operation is desired to be confirmed (step S1). For example, assume that this is “K”.
This input data is sent to the drawing control unit 3a by the control unit 4, stored in the drawing memory 3b, and simultaneously displayed on the display 3c (step S2).

On the other hand, since correct bitmap data is stored in the data storage disk 5 in advance, the control section 4 loads this correct bitmap data into the reference memory 6 (step S3). And display 3
The test target data 9 displayed in c and the comparison data (correct bit map data) 11 are taken in by the comparison means 10 and compared dot by dot (step S4).

FIG. 4 shows the test data 9 and the comparison data 1.
1 shows an example. That is, (a) is the comparison data 11 as the correct bitmap data of the character "K",
(B) shows the test target data 9. Here, for the sake of explanation, the number of dots of the bitmap data is simplified and illustrated.

By making such a comparison, comparison data 11
If there is a mismatch in the dots between the test target data 9 and
The comparison means 10 determines that the test target data 9 is “error”, and outputs a display signal to the display device 8 so as to display “error” (step S5). For example, in the example shown in FIG. 4, since the second and third dots in the horizontal direction in the second column in the vertical direction are erroneous, the test target data 9 is determined to be “error”.

On the other hand, in the comparison in step S4, if a certain dot matches, the process proceeds to step S6 to determine whether or not all the dots have finished. If not, the process returns to step S4. The comparison operation is performed until all dots are completed. Then, if all the dots match, that is, if there is no difference between the test target data 9 and the comparison data 11, the comparison means 10 determines that the test target data 9 is “correct” and displays it. A display signal is output to the device 8 to display "correct" (step S).
7). Therefore, when the determination result of the comparison means 10 is "error", it can be determined that the drawing control unit 3a or the drawing memory 3b is not in a normal state.

In the above embodiment, the case where the character "K" is used as the test object data 9 has been described. However, the test object of the bit map display is not limited to such a character, and it is not limited to the character. As long as display control is performed dot by dot, the same effect as in the above embodiment can be obtained even with image data and the like.

[0018]

As described above, according to the bitmap display operation test method of the present invention, the test object data displayed on the bitmap display and the comparison data as the correct bitmap data are compared dot by dot. However, when there are different dots, it is determined that the test target data is erroneous, so that the operation of the bitmap display can be accurately confirmed and the burden on the operator can be reduced.

[Brief description of drawings]

FIG. 1 is a flowchart of a bitmap display operation test method of the present invention.

FIG. 2 is an explanatory diagram showing an operation test method for a conventional bitmap display.

FIG. 3 is a block diagram of a bitmap display operation test device for carrying out the method of the present invention.

FIG. 4 is an explanatory diagram of correct bitmap data and incorrect bitmap data in the bitmap display operation test method of the present invention.

[Explanation of symbols]

 3 Bitmap display 9 Data to be tested 10 Comparison means 11 Comparison data

Claims (1)

[Claims] 1. A test target data to be displayed on a bitmap display, and comparison data for testing whether the test target data is correct or not are provided, and the test target data and the comparison data are compared dot by dot. When there are different dots, it is determined that the test target data is erroneous, and a bit map display operation test method.