JPH0452973A - Animation display system - Google Patents

Abstract

PURPOSE:To reduce the memory capacity of a mask memory by storing the coordinate value of the point of intersection of a line and a boundary line in the mask memory, and displaying an animation by switching picture data on the basis of the coordinate value. CONSTITUTION:The picture data of some page, the picture data of a next page, and the coordinate value for switching are stored in picture memories 0,1 and the mask memory 2 respectively, and at the time of display, the picture data read out from the picture memories 0,1 are switched and outputted on the basis of the coordinate value read out from the mask memory 2. Accordingly, the animation can be displayed by storing the coordinate value of the intersection point of the line and the boundary line in the mask memory 2, and switching the picture data from the picture data read out from the picture memory 0 to the picture data read out from the picture memory 1. Thus, the memory capacity of the mask memory can be reduced.

Description

[Detailed Description of the Invention] [Summary] Regarding an animation display method that gradually switches from one page to the next and displays the page, the coordinate values of the intersections of lines and boundary lines are stored in a mask memory and based on this. The purpose is to reduce the memory capacity of the mask memory by switching image data and displaying animation. Image memory 0 stores the image data of a certain page, image memory 1 stores the image data of the next page, and the above A mask memory stores coordinate values in the line direction for switching from the image data read from the image memory 0 to the image data read from the image memory 1. It stores image data, the image data of the next page, and the coordinate values to be switched, and is configured to switch between the image data read from image memories 0 and 1 based on the coordinate values read from the mask memory and output one of them. do.

(Industrial Application Field) The present invention relates to an animation display method that gradually switches from one page to the next.

[Problems to be solved by the prior art and the invention] A picture of a book as shown in Figure 6 (a) is displayed on the display screen of an information processing device such as a workstation, and the book is displayed as shown in Figure 6 (a). As shown in (c), (c), and (d), the chin and mation display is performed as if the pages of a book were being turned and the next page gradually came into view. Here, the sixth
The dotted line at (C) is the page boundary line.

Conventionally, in order to speed up this animation display, as shown in FIG. 8, the image data of the page on the left side of the page boundary line is stored in image memory 0, and the image data of the page on the right side is stored in image memory 1. . Then, display which image data of these two image meries 0 and ■.
・Mask memory 2 is used to switch between output and display.
Image switching device 2 based on the mask data read from 2
4 was used. By using the hardware configuration shown in Figure 7 that has the configuration shown in Figure 8, pictures can be displayed on display 2.
8, the image data read out from the image memory O and the image memory 1 is input to the image switching device 24, and when the mask data read out from the mask dryer 22 is 0, the image data from the image memory 0 is input to the image switching device 24. On the other hand, when it is 1, the image data from the image memory 1 is output. At this time, the timing of the mask data read from the mask memory 22 and the image data read from the image memory 0.1 is set using the display horizontal and vertical synchronization signals as reset triggers, and the pixel clock synchronized with the display timing of one pixel. In synchronization with the counter 26, the image Y-ta read out from the image memory 0.1 is switched to the 1 pixel position and output. This output image data is converted into an analog video signal by the D/A 27, and is input to the display 28 for animation display.

In this case, one screen is, for example, 1024 pixels horizontally x 102 pixels vertically.
If it is 4 pixels, 1024X1024+8-128
requires a byte of mask memory 22 (1 bit/
When actually displaying page turning animation, the border line between pages must be moved little by little. Therefore, the mask data in the mask memory 22 is sequentially changed to change the border line little by little. It is necessary to rewrite the mask data to move it. In this case, the moving speed of the border line (the speed of displaying the page turning animation) depends on the processing speed of the software, and there is a problem in that it cannot be displayed at a sufficient speed as an animation. To solve point 7, for example, if one page turning animation is to be displayed in 32 frames, the mask memory 22 that stores 32 frames worth of mask data (mask data of 32 types of border lines) is required. Get ready.

Then, a method is used in which border mask data for 32 frames is set in advance before animation display is started. Therefore, the page turning animation requires a very large capacity mask memory 22. For example, in the above example, 128 bytes plus 323 bytes - 4
There is a problem in that an M-high I mask memory 22 is required.

In FIG. 6, an external storage device 29 is an external storage device connected via a system bus, a keyboard/mouse 30 is an input device for inputting data manually, and a main memory 31 is a storage device connected to a system bus. It is a memory that stores data and the like, and the CPU 32 performs various processes according to programs.

The present invention aims to reduce the memory capacity of the mask memory by storing the coordinate values of the intersections of lines and boundary lines in a mask memory and switching image data based on the coordinate values for animation display.

[Means to solve the problem]

Means for solving the problem will be explained with reference to FIG.

In FIG. 1, image memory 0 is a memory that stores image data of a certain page.

Image memory 1 is a memory that stores image data for the next page.

The mask memory 2 is a memory that stores coordinate values in the line direction for switching from image data read from the image memory 0 to image data read from the image memory 1.

[Effect]

As shown in FIG. 1, the present invention stores the image data of a certain page, the image data of the next page, and the coordinate values to be switched in the image memory O1 and the mask memory 2, and when displaying, Based on the read coordinate values, the image data read from the image memory 0.1 is switched and output.

Therefore, the coordinate values of the intersections between the lines and the boundaries are stored in the mask memory 2, and based on this, the image data read from image data 0 is switched to the image data read from image data 1 to display the animation. According to
It becomes possible to reduce the memory capacity of the mask memory 2.

〔Example〕

Next, the configuration and operation of one embodiment of the present invention will be explained in detail using FIGS. 1 to 5.

FIG. 1(a) shows a hardware configuration diagram.

In FIG. 1(a), image memory 0 is a memory that stores image data of a certain page (original page) on which animation display is to be performed, and image data for normal display.

Image memory 1 gradually transfers image data read from image memory O to mask memory 2 during animation display.
This is a memory that stores the image data of the next page, whose border lines are moved and displayed based on the coordinate values read from the page.

The mask memory 2 is a memory that stores the position 'am (for example, the X coordinate value or the number of pixels from the beginning of the line) in the line direction for switching from the image data read from the image memory 0 to the image data read from the image memory 1. be. The mask memory 2 stores, for example, 32&Il corresponding to 32 frames in order to switch from a certain page to the next page.
I am trying to set it up.

The mask memory register 3 is used by the CPtJ 12 to set values in its bits and give instructions according to a program (see FIG. 4).

The image switching device 4 switches between the image data read from the image memory O and the image data read from the image memory 1 based on the signal from the comparator 5 and outputs the selected image data. For example, the comparator 5 compares the coordinate values read from the mask memory 2 and the number of pixels counted by the counter 6, and when the counted number of pixels is small, it outputs the image data read from the image memory O; image memory 1
This is to switch to output the image data that has been read out.

The comparator 5 compares the coordinate values read from the mask memory 2 and the number of pixels counted by the counter 6.

The counter 6 counts the pixel clock and the like. The counter 6 is a device that is reset by a horizontal/vertical synchronization signal and consists of a counter that counts pixel clocks in the horizontal direction, a counter that counts pixel clocks in the vertical direction, and a counter that counts the number of frames. ' A 7 For example, the digital image signal υ output from the image switching device 4 is converted into an analog signal (
It is converted into a video image (transformed).

DISB L, A8 is the one that displays the animation source (:/, etc.) by inputting the image image of the AJ-sign converted by I)/A7. It is.

The external storage device W9 is an externally provided storage device connected to -ζ through the system.

Gibo-1/Mouse 10 performs various human power operations') #
).

Main/Memory 1] is a memory that stores program data, data, etc.

C, P [J 12 performs various processing according to the program J loaded into the main memory 1.

FIG. 11(b) does not show an example of mask data. Nskude
-Y is a coordinate value to be stored in the mask memory 2,
Here, the number of pixels in the horizontal direction is the number of pixels. For example, Disb! , , -(The first line on 8 is the horizontal force r
i+1ic850th pixel, 2. ,>In[1 is the 800th pixel in the horizontal force direction... The dotted line between these points indicates the difference between the image data read from the image memory 1 and the image data read from the image memory 1.
This is the boundary line where the change occurs in the evening.

FIG. 2 does not show an example of the data structure in the image memory according to the present invention. Image memory 0 and image memory 1 are 1-pixel load (1st pixel image data) and 2-pixel data (1 data...) as shown in C in the figure. It is stored continuously. Continuous in these one dimension 7
The stored image data is stored in the image memory (), continuing from 1, as shown in 1/, Dice 1 No. 8, the 1st line is 1 to 024th pixel data, the 2nd line is The 1025th to 2048th pixel data, etc. are displayed sequentially. Note that here, in order to store color image data of 8 bits/pixel - 1 byte/pixel, the width is 1024. x vertical 102
The memory capacity is 4×1 byte - 1 Mbyte.

The third figure 1 shows an example of the data structure in the mask memory according to the present invention.Here, the data of 1° Eye coordinates...1
It is composed of the coordinates of the 024th line. Similarly, 2
．． ．． 1 frame data...Data for the 32nd frame is stored as shown. As a result, one square data for 0il-32 frames is stored, 4 squares/7 squares and 2 squares. still,
Here, the mask data is 2 high) per frame.
X 1024-2 K high 1, 32-17 minutes, total drying capacity of 641 < Hyde.

FIG. 4 shows a configuration example of a mask memory register according to the present invention. This mask memory register 3 is composed of a status table (Povifu) S, a mask memory use bit M, and the like. The combination of these bits, J, and R/W indicates normal display, animation display, beginning of animation display, etc., as shown in the lower row.

Next, in accordance with the order shown in FIG. 5, the operation of the configuration of one embodiment of the present invention explained using FIGS. 1 to 4 will be explained in detail.
14 I will explain.

In FIG. 5, ``■'' performs normal display. This normal display is when one method such as animation is not used.
ζ, 117th] Mask memory 2, image memory 12, and comparator 5 are not used.The output from the 21 inverter 5 is input to the image switching device 4.The image number O is selected, and the counter (117th) is selected. The image data read out from the image memory O in accordance with the timing signal from the image memory O is outputted to the image switching device II)/A 7 and displayed on the display A8.

(2) Performs gutter settings for mask memory 2, image memory 1:01 image memory 1 using sonotube (a).

a) The mask memory l/jimeta 3 has software 1. Set the mask memory display start using

a indicates the number of frames in the mask memory 2 and clears the 1 counter.

■ sets the display timing of the first (left and second) of one screen direction to [・
As a trigger, the count is sent to not only image memory 0 but also mask memory 2, comparator 5, and image memory].

[Phase] outputs image data corresponding to each pixel indicated by the output from the counter from the image memory O11.

@ outputs from the mask memory 2 image data corresponding to the pixels of the line corresponding to the Y-direction count indicating the line from the counter. This reads mask data corresponding to the number of lines from the mask memory 2 and inputs it to the comparator 5.

[Phase] is the X of the intersection with the boundary line output from the counter
The coordinates are compared with the X-direction count output from the counter, and if the count value is small, a signal to switch to the image memory O side is output to the image switching device 4, and if it is large, a signal to switch to the image memory 1 side is output to the image switching device 4.

[Phase] outputs data on the image memory O side or data (image data) in one example of the image memory to the D/A 7 in accordance with the signal from the comparator 5.

[Phase] When the display up to the 1024th line is finished,
Increment the counter that counts the number of frames.

(2) determines whether the content of the counter that counts the number of frames is greater than 32 or not. In the case of YES, since the animation display of 32 frames has been completed, a flag is sent with 0 to notify the software of the end of the animation display process, and the normal display is returned with [phase]. On the other hand, in the case of No, since the animation display of 32 frames has not been completed yet, the steps below are repeated.

〔Effect of the invention〕

As explained above, according to the present invention, the coordinate values of the intersections of lines and boundary lines are stored in the mask memory 2, and based on this, the image data read out from image data 0 is read out from image data 1. Since the configuration is adopted in which animation is displayed by switching to image data that has been changed, the memory capacity of the mask memory 2 can be reduced. For example 1
The number of bytes per screen has been reduced from 128 bytes in the conventional mask memory 22 in FIGS. 7 and 8 to 2 in the mask memory 2 in FIG. . When using the mask memory 2 for 32 frames, the memory capacity of the mask memory 2 can be further reduced significantly.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of one embodiment of the present invention, FIG. 2 is an example of the data structure in the image memory according to the present invention, FIG. 3 is an example of the data structure in the mask memory according to the present invention, and FIG. 4 is the structure according to the present invention. An example of the configuration of such a mask memory register, FIG. 5 is an explanatory diagram of the operation of the present invention, FIG. 6 is an example of page turning animation display, and FIG.
The figure shows a hardware configuration diagram of a conventional device, and the eighth leap is an explanatory diagram of display switching using a mask memory in the conventional method. In the figure, 0.1 is an image memory, 2 is a mask memory, 3 is a mask memory register, 4 is an image switching device, 5 is a comparator, 6 is a counter, and 7 is a D/A. 8 represents a display.

Claims (2)

[Claims] (1) In an animation display method that gradually switches from one page to the next, the image memory (0) stores the image data of a certain page, and the image memory (1) stores the image data of the next page. And from the image data read out from the image memory (0),
A mask memory (2) stores the coordinate values in the line direction to be switched to the image data read from the image memory (1).
), the image memory (0), (1), and the mask memory (
2) stores the image data of a certain page, the image data of the next page, and the coordinate values to be switched, and stores the image data of a certain page, the image data of the next page, and the coordinate values to be switched, and the mask memory (2)
Based on the coordinate values read from the image memory (0), (1
), the animation display method is characterized in that it is configured to switch between the image data read out from the source and output one of the image data. (2) A plurality of sets of the above mask memories (2) are provided, each storing coordinate values for switching image data, and one of these sets of mask memories (2) is sequentially selected based on the read mask data. 2. The animation display method according to claim 1, wherein the animation display method is configured to output image data of .