JPH04101194A - Display control system - Google Patents

Abstract

PURPOSE:To speed up processing by holding data displayed on a display divisionally as shape data and pattern data and processing the respective data independently. CONSTITUTION:A shape image memory 2 is read sequentially through a counter 1 and the data read out of the shape image memory 2 is used as an address to read a pattern image memory 3. Then the data read out of the pattern image memory 3 is passed through a palette control circuit 5 and displayed on a display unit 6. For drawing, a CPU 8 selects the shape image memory 2 or pattern image memory 3 where the drawing is to be performed. Then the data are written in the selected image memory from a drawing processor 4 through a bus 7 for drawing. Consequently, a shape and a pattern are processed independently and the processing is speeded up.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a display control method.

[Conventional technology]

Conventional display systems control the display by reading out a memory that stores information such as the brightness or color of each pixel in an almost fixed order.

[Problem to be solved by the invention]

In the conventional display control method described above, the data in the video memory is read out and displayed in a fixed order, and the data in the video memory is not only pattern data, but also shape data (depending on how the data is arranged). If we also define it, it becomes seven.

As a result, even if only one of the designs is changed, shape 1 can be used, for example, when a digitized image is sequentially transformed into a fixed shape and displayed, or when it is scrolled along a curved surface. For example, both the shape and design must be taken into account when processing, which makes the process complicated! There was a problem.

[Means to solve the problem]

The display control system of the present invention comprises a holding means for holding data to be displayed on a display divided into shape data and pattern data, and a processing means for independently processing each data from this holding means. be.

[Effect]

In the present invention, the data is divided into shape data and pattern data, and the shape and pattern are processed independently.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The figure is a block diagram showing one embodiment of the present invention.

In the figure, 1 is a counter that sequentially reads out the shape video memo + 7t. 2 is a shape video memory that stores the address of the pattern video memory corresponding to each point on the display 6, and 3 is a design video memory that stores pattern data. It constitutes a holding means that holds the parts separately.

4 is a drawing processor, and 5 is a palette control circuit, which constitute processing means for independently processing each data from the holding means. I is a drawing bus, 8 is a CPU (central processing unit) connected to this drawing bus 1, and this CPU 8 has a function to select whether the image memory for drawing is a shape image memory or a design image memory. have.

Next, the operation of the embodiment shown in this figure will be explained.

Display is performed as follows. First, the counter 1 sequentially reads out the shape memory 2. Next, the data read out from the shape image memory 2 is used as an address to read out the pattern image memory 3.

The data read from the symbol video memory 3 is then passed through the palette control circuit 5 and displayed on the display 6.

Drawing is performed as follows. First, the CPU 8 selects whether the image memory for drawing is the shape image memory 2 or the pattern image memory 3. Next, data is written into the selected video memory from the drawing processor 4 through the entire drawing bus 7.

Next, an example of use of the present invention will be explained.

First, regarding the scrolling of nine symbols along a curved surface in usage example 10, the contents of the shape dimension memory 2 are set so that a certain area of the pattern dimension memory 3 is allocated to a certain curved surface on the display 6. Then, in this state, data transfer corresponding to vertical scrolling or horizontal scrolling in the conventional display control method is performed to the symbol video memory 3.

Next, as a usage example 2, the digitized image glt
Paste the ball Naoe sequentially. Then, the contents of the shape image memory 2 are set so that a certain area of the pattern image memory 3 is allocated to a spherical surface on the display 6.

In this state, images captured by the digitizer are sequentially sent to a specific area of the symbol video memory 3.

〔Effect of the invention〕

As explained above, since the present invention is configured to separate shape data and pattern data, the shape and pattern can be processed independently, and in particular, the process of changing only either the shape or the pattern can be easily performed. Therefore, it has the effect of speeding up the processing.

[Brief explanation of drawings]

The figure is a block diagram showing one embodiment of the present invention. 2... Shape video memory, 3... Design video memory, 4... Drawing processor, 5... Palette control circuit, 6... Display. degree

Claims (1)

[Claims] A display control system characterized by comprising a holding means for separately holding data to be displayed on a display into shape data and pattern data, and a processing means for independently processing each data from the holding means.