JPH01291320A - Image processor - Google Patents

Abstract

PURPOSE:To always obtain a hard copy of a normal image by always managing size data of a currently used frame buffer, and executing a control of the hard copy in accordance with this size data. CONSTITUTION:A parameter managing means and a hard copy control means are realized by a fact that a main controller 1 executes the program concerned of a main storage device 2. That is, when a constitution size of a frame buffer 9 in a display memory 7 is changed by changing specifications and a resolution of a display device 5, the contents (size data of the frame buffer) are updated by the parameter managing means, and the hard copy control means executes a control of a hard copy, based on this updated size data. In such a way, even if the specifications and the resolution of the display device are changed, it becomes unnecessary that an operator executes a parameter change with regard to the hard copy, and a normal hard copy can be executed automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an image processing device built into equipment such as an office computer or a workstation, and in particular to a hard copy image processing device that prints an image displayed on a display device using a printer. The present invention relates to the two-baso control technology.

Conventional technology In office computers, etc., images read by an image scanner or created by the Combita Graphics method can be displayed on a display device via a display memory, and the image being displayed can be displayed as needed. can be printed using a printer (this is called a screen copy).

Generally, image data is processed in various ways in a display memory, and the image data written in an area called a 7-frame buffer in the display memory is displayed on a display device. This frame buffer is a memory plane that corresponds to the display screen in a bitmap format.

When the hard copy command is issued, the image data (displayed) in the frame buffer is also transferred to the printer, and the same image as on the display screen is printed. As mentioned above, the frame buffer is a display memory area that corresponds to the display screen in a bitmap format, and its configuration size (the number of dots in the vertical and horizontal directions of the screen)
is determined according to the specifications and resolution of the display device. On the other hand, the maximum print width and resolution of a printer are usually different from those of a display device, so in order to perform the hard copy described above, image data (frame buffer data) in a pit map configuration suitable for the display device must be configured for the printer. I need to redo it. Specifically, since the printing width of a printer is usually wider than the width of the display screen, margin data of a predetermined width is added to each line of image data. If the vertical and horizontal resolution ratios differ between a narrow display device and a printer, it is necessary to reduce or enlarge the image data in the frame buffer as appropriate. /・
- In the copy control unit (program), control parameters indicating how to reconstruct the image data in the frame buffer and transfer it to the printer are set in accordance with the installed display device and printer.

Problems to be Solved by the Invention In conventional image processing devices, when changing the display device from the standard one to one with seven resolutions, the display control unit (graphics controller)
′ change various control parameters. Included among these parameters is the configuration size of the frame buffer in display memory. If the configuration size of the frame buffer is changed to match the display device, the image data in the frame buffer will not be configured into a normal image at the print output stage unless the control parameters of the hard copy control section are changed. Can not do it.

As is clear from the above, when changing the specifications, resolution, etc. of a display device, in addition to changing the control parameters of the display control section directly related to the display device, it is also necessary to control the note copy control section related to the printer. Parameters also had to be changed, which was very troublesome work. In particular, when using a display device whose resolution can be switched, the above-mentioned parameter change work must be performed every time the resolution is switched.

5. This invention was made in view of the above-mentioned conventional problems, and its purpose is to allow the operator to change the parameters of the copy control unit even if the specifications and resolution of the display device change. It is an object of the present invention to provide an image processing device that can automatically perform normal note copying without having to perform the following operations.

Means for Solving the Problem Therefore, in the present invention, a parameter management means is provided for setting size data of the frame buffer currently used by the display control means in a predetermined register, and...
- The copy control means is configured to learn the size data of the frame buffer from the register, and transfer the data to the printer while reconfiguring the image data of the frame buffer for use with the printer.

When the configuration size of the frame buffer in the display memory is changed due to a change in the specifications or resolution of the display device, the content of the register (size data of the frame buffer) is updated by the parameter management means. Ru. The hard copy control unit controls the hard copy based on this updated size data.

Embodiment FIG. 1 shows a schematic configuration of a workstation to which the present invention is applied. Basically, it is the same as a general converter, and includes a central processing unit 1, a main storage device 2, an external storage device 3, an input device 4 such as a keyboard, a display device 5 using a CRT etc., and a printer 6 such as a laser beam printer. It is equipped with A display memory 7 is attached to the display device 5, and the display memory 7 is accessed by the central processing unit 1 and the graphics controller 8, and various image processing is executed on the display memory 7. In addition, the display memory 7 is set with a frame buffer 9 corresponding to the display screen of the display device 5 and a bitmap format.
The image data written to this frame buffer 9 is displayed on the display device 5. In this embodiment, the Day 7 to 7 spray device 5 is capable of switching the display size (resolution), and the switching is realized by changing the control parameters of the graphics controller 80 by the main control device 1. do.

The above-mentioned parameter management means and hard copy control means are realized by the main control device 1 executing the corresponding programs in the main storage device 2.

The outline of the processing procedure is shown in the flowchart of FIG.

In FIG. 2(g), in the initial routine of step 101, the initial display size (this is the size data of the frame buffer 9 mentioned above) is set in a predetermined register R. If there is a change in display size, the process proceeds from steps 102 to 103 and 104, where the initial display size in register R is saved in another register and a new display size is set in register R. Furthermore, after executing the application process, the initial display size is reset in register R (105→106).

As described above, the size data (display size) of the frame buffer 9 used for viewing is always stored in the register R. In the hard copy control program shown in Figure 2 (CB), first, the contents of register R are read to determine the size of the frame buffer 9 (display size), and the hard copy control parameters are set according to the display size. , and transfers the image data in the frame buffer 9 to the printer 6 while reconfiguring it for linking according to the parameters. This will print the same image as displayed.

Effects of the Invention As described in detail above, in the image processing apparatus according to the present invention, the display control means always manages the size data of the frame buffer currently in use, and according to this size data... Since the configuration is configured to execute control, even if the specifications or resolution (display size) of the display device are changed, the control parameters related to the hard copy will be automatically changed, so the operator will not be aware of the changes at all. You can always make note copies of normal images without being aware of it.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a workstation to which the present invention is applied, and FIG. 2 is a flowchart showing the operating procedure of its main parts. 5... Display device, 6... Printer, 7... Display memory, 9... Frame buffer. Name of agent: Patent attorney Toshio Nakao and 1 other person1,
・L Dimensions Diagram 2 (A) (El)

Claims (1)

[Claims] Display control means for displaying image data generated in a frame buffer in a display memory on a display device; and parameter management means for setting size data of the frame buffer currently used by the display control means in a predetermined register. and a hard copy control means for reconfiguring the image data in the frame buffer according to the size data in the register and transferring it to a printer to print the image being displayed on the display device.