JP2002361946A - Image processing unit and processing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image processing unit, capable of drawing graphics in a mass for a relatively low speed bit map memory by providing a memory of a dramatically higher speed compared with a bit map memory such as an SRAM in a graphic drawing unit for generating an image in the high speed memory by collecting an inefficient data set per an area of a certain degree, and a processing method therefor. SOLUTION: A processing command 102 for producing a graphic processing list based on printing data from an information processing unit, executing a bit map data graphic process according to the graphic processing list, and commanding a process to a bit map memory 107 according to the printing data from the information processing unit at the time of outputting to a printing apparatus, and a box processing command 103 for commanding a process to a RAM 105 are produced as a graphic processing list 101. In the case of the box processing command 103, a graphic object is generated to the RAM 105 for drawing graphics in a mass to the bit map memory 107.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus for generating a drawing processing list based on print data from an information processing apparatus, performing bitmap data drawing processing in accordance with the drawing processing list, and outputting the drawing processing list to a printing apparatus. And its processing method.

[0002]

2. Description of the Related Art Conventionally, in a drawing apparatus, a drawing command generated by various application software on an information processing apparatus is converted into a print command by a printer driver in a description language suitable for a printer, and drawn in accordance with the print command. The apparatus is configured to edit a drawing command of the apparatus in the form of a drawing processing list in page units or drawing band units, and draw in a bitmap memory according to the processing list. Then, the drawn bitmap data is sent to the printing mechanism of the printer and printed on a print medium.

[0003]

However, in the above-mentioned conventional example, depending on the output data of the application software, an image is generated in raster units of the image, and is formed as a set of discrete points, lines or rectangles made into parts. In some cases, it may be sent, or in the form of raster-based image data. At this time, since the bitmap memory or the like for forming an image in the printing device or the like defines the raster direction of the image with respect to the scanning direction of the printing device, the input data is stored in the raster direction of the printing device due to paper conveyance. Often different. In that case, the drawing data is width 1
This results in data like dots or narrow vertical lines, which causes a problem that the memory access efficiency in the drawing apparatus is extremely low. The result is a marked decrease in printing speed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has a SR which is much faster than a bit map memory.
Image processing in which a memory such as an AM is provided in a drawing apparatus, inefficient data sets are grouped into a certain area to generate an image in a high-speed memory, and drawing to a relatively low-speed bitmap memory can be collectively performed. It is an object to provide an apparatus and a processing method thereof.

Another object of the present invention is to solve a processing list for designating an operation by setting a command for designating an area, a drawing logic, a drawing quantity and the like and a command for designating each image by a command chain. It is to be.

[0006]

In order to achieve the above object, according to the present invention, a drawing processing list is generated based on print data from an information processing apparatus, and drawing processing of bitmap data is performed according to the drawing processing list. An image processing apparatus that performs processing and outputs the first processing command to a bitmap memory in accordance with print data from an information processing apparatus, and to a memory different from the bitmap memory. Generating means for generating a second processing command instructing the above processing as the drawing processing list; and generating bitmap data in a memory different from the bitmap memory based on the second processing command. Drawing means for drawing bitmap data collectively on the bitmap memory based on the first command. That.

According to another aspect of the present invention, there is provided a printing apparatus which generates a drawing processing list based on print data from an information processing apparatus, and performs bitmap data drawing processing in accordance with the drawing processing list. A first processing command instructing processing to a bitmap memory according to print data from the information processing apparatus, and a processing command to a memory different from the bitmap memory. Generating a second processing command instructing processing as the drawing processing list; generating bitmap data in a memory different from the bitmap memory based on the second processing command; A drawing step of drawing map data collectively on the bitmap memory based on the first command. That.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In the present embodiment, a drawing apparatus for generating a print image in a printing apparatus such as a printer for printing based on print data sent from an information processing apparatus such as a computer and drawing the image in a bitmap memory will be described. .

FIG. 1 is a view showing the drawing operation of the drawing apparatus according to the present embodiment. In the figure, reference numeral 101 denotes an application list (drawing processing list) configured on a memory; 102, a configuration of a processing command;
OX drawing command configuration, 104 is a mask generator, 105 is an SRAM for performing partial drawing, 106 is BP
U and 107 are bitmap memories. The details of the BOX drawing and the BOX drawing command will be described later.

FIG. 2 is a functional block diagram showing the configuration of the printing apparatus. In the figure, 201 is an input interface (IF), 202 is an input data buffer, 203 is a command analysis unit, and 204 is a processing list / object data generation unit. Reference numeral 210 denotes a drawing device, which includes a page buffer 205, a bitmap development unit 206,
07 bitmap memory. 20
8, an engine interface; and 209, a print engine.

FIG. 3 is a block diagram showing a hardware configuration of the printing apparatus. In the figure, reference numeral 301 denotes a CPU, which controls the entire apparatus according to a program described later. Reference numeral 302 denotes a ROM, which is a memory that stores programs and control data of the CPU 301. 303 is D
The MA controller controls data transfer directly to the memory. 304 is a host interface (IF)
And print data is input from an external host computer. A RAM 305 is a memory in which a work area and various tables used by the CPU 301 when executing control are defined. A renderer 306 develops print data in a bitmap memory. A printer interface (IF) 307 outputs the developed bitmap data to the print engine. And 3
08 is a system bus.

Next, the basic operation and configuration of the printing apparatus will be described with reference to FIGS. Print commands and print data sent from the host computer are received by the input interface 201 shown in FIG. The input interface 201 is connected to the system bus 308 as a host interface 304 shown in FIG. 3, for example, and the input data buffer 202 is set as an area on the RAM 305 shown in FIG. Next, the command analysis unit 203 shown in FIG.
The above print command is analyzed, and the processing list / object data generation unit 204 generates a drawing processing list and object data to be drawn on the page buffer 205 from the analyzed print command and print data in page units and print band units. .

The command analyzer 203 and the processing list / object data generator 204 shown in FIG. 2 execute the processing program stored in the ROM 302 shown in FIG.
01 is executed. Here, FIG.
The page buffer memory 205 shown in FIG.
The bitmap developing unit 206 shown in FIG. 2 generates a bitmap image based on the object data in accordance with the processing list on the page buffer 205 and forms the bitmap image on the bitmap memory 207.

The bitmap forming unit 206 corresponds to the renderer 306 shown in FIG. 3, and the bitmap memory 207 corresponds to a predetermined area on the RAM 305 shown in FIG. The bitmap image formed on the bitmap memory 207 is read by the engine interface 208 shown in FIG. 2, sent to the print engine 209 at a predetermined timing, and printed on print paper.
Here, this engine interface 208 corresponds to FIG.
Corresponds to the printer interface 307 shown in FIG. The DMA controller 303 shown in FIG. 3 transfers data from the host interface 304 shown in FIG. 3 to the input data buffer configured on the RAM 305,
Renderer 3 from page buffer formed on M305
Direct data transfer to the printer interface 307, data transfer to the printer interface 307, data transfer to the printer interface 307, data transfer to the printer interface 307, data transfer to the printer interface 307, and the like. It is performed by the access method.

The drawing apparatus 210 shown in FIG. 2 is provided in the printing apparatus, and the bitmap developing unit 206
Bitmap memory 2 according to the drawing processing list on
07 has a function of forming a bitmap image. Hereinafter, the drawing apparatus 210 will be described in detail.

FIG. 4 is a diagram showing a configuration of the renderer 306 shown in FIG. In the figure, 401 is a controller, 402 is a mask generator, 403 is a color generator, 4
04 is a RAM, 405 is a selector (SEL), and 406 is a BPU.

Here, the controller 401 inputs a drawing processing list in page units or print band units created on the page buffer 205 shown in FIG. 2 constructed on the RAM 305 shown in FIG. , A mask object to be used for the mask generator 402, a color object to be used for the color generator 403, and a drawing logic and
Specify the address of the bitmap memory indicating the drawing position and the drawing width.

The mask generation circuit 402 includes a controller 4
Reference is made to the object data formed in the page buffer 205 shown in FIG. 2 on the RAM 305 shown in FIG. 3 designated by 01, and a mask pattern such as a line, a character, a graphic, or an image is generated and output. Similarly, the color generator 403 refers to the object data formed in the page buffer 205 shown in FIG. 2 on the RAM 305 shown in FIG. 3 specified by the controller 401, and outputs color data indicating a color in a density pattern. I do.

On the other hand, the BPU 406 is a RAM shown in FIG.
The data of the drawing area designated by the controller 401 is read out as the destination data from the bitmap memory configured on the memory 305, and the mask data output from the mask generator 402 and the color generator 4
03 and the color data output from the controller 40
A logical operation is performed using the drawing logic designated by 1 and the result is written to the bitmap memory. This series of operations is performed for all the drawing processing lists until the controller 401 detects the end command written at the end of the processing list, thereby realizing the drawing operation of one page or one print band.

The selector 405 shown in FIG. 4 is normally set so as to directly input the output data of the mask generator 402 to the BPU 406.
When the processing list specifies the drawing command chain, the mask data is drawn once in the RAM 404 shown in FIG. 4 and is output to the BPU 406 when the selector 405 selects the RAM 403. Details in this case will be described later.

FIG. 5 is a diagram for explaining a normal object drawing operation of the drawing device 210 shown in FIG. 5, reference numeral 501 denotes the page buffer 205 shown in FIG.
The drawing processing list formed above, 502 is a view showing the structure of the processing command of the drawing processing list 501, 503 is object data formed on the page buffer 205 shown in FIG. 2, and 504 is a bit map shown in FIG. The mask generators 402 and 505 shown in FIG. 4 are also present in the developing unit 206 or the renderer 306 shown in FIG. 3, and the color generators 403 and 506 shown in FIG.
U406 and 507 are bitmap memories 207 shown in FIG. 2 configured on the RAM 305 shown in FIG. still,
The example shown in FIG. 5 is a case where the selector 405 shown in FIG.

Next, a normal object drawing operation will be described with reference to FIG. In the drawing processing list 501 shown in FIG. 5, processing commands are configured for each object to be drawn, and the drawing operation is performed in the order of the processing commands 0, 1, 2,. At the end of the processing command, there is an end command for ending the drawing operation, and the drawing apparatus ends the drawing operation here.
The processing command 502 is composed of a drawing logic, a command, in this case, a normal drawing of an object, a drawing coordinate, a mask object, and a color object.

The controller 401 shown in FIG. 4 outputs the drawing logic and the drawing coordinates of the processing command 501 to the BPU 506, the designation of the mask object to the mask generator 504, and the designation of the color object to the color generator 505.
Start each block. The mask generator 504 converts the designated object header into object data 503.
Read from The object header contains text, graphics,
The type of the compressed data and the size of the object data are described, and bitmap data is generated and output from the subsequent object body based on these. At this time, the object body is font data in the case of a character, and source data for generating mask data such as edge coordinates in the case of a figure.

The color generator 505 reads the designated object from the object data 503.
The object header similarly describes the type and size of the object. For color objects, pattern data indicating the density as the object body,
The tile data is written therein, and the color generator 505 reads these in order and outputs them as color data.

The BPU 506 shown in FIG. 5 reads data from the bit map memory 507 in the designated drawing area, and performs logical operation on the output mask data and color data and the designated drawing logic, ie, OR writing, overwriting, and the like. And
The data is written to the bitmap memory 507 again.

As described above, each processing command of the drawing processing list 501 is drawn one after another, and
If the first processing command is an end command, this drawing operation is ended.

FIG. 6 is a diagram showing a drawing example of data transmitted from the host computer. Data such as 601 shown in FIG. 6 is created on an application program of the host computer, and the host computer converts the data into, for example, PDL, that is, a page description language and transmits the data to the printing apparatus. At this time, depending on an application program such as a word processor (word processor) or a printer driver, a command for drawing a portion where an image exists as a fine line along a raster direction 602, that is, a direction in which the image is scanned in a predetermined direction, is provided. May be generated and transmitted. In this case, if the image is delicate, a large amount of data of a fine point or a short line having one line height is sent to the printing apparatus.

On the other hand, in the printing apparatus, one processing list must be formed for each point or line to perform drawing. Here, if the raster direction of the transmitted image and the raster direction of the printing apparatus, that is, the scan direction of the print engine, coincide with each other, when drawing in the bitmap memory, the same address in the memory as indicated by 605 is used. A plurality of dots can be drawn simultaneously, and continuous reading and writing of several words can be performed by using a burst memory and a page memory, and drawing can be performed at a somewhat high speed.

However, if the raster direction of the sent image does not match the raster direction of the printing apparatus, the image must be rotated and drawn as shown at 603. In other words, a large number of points sent in the raster direction,
It is necessary to convert the line data to vertical one-dot-width image data as shown at 604 and draw the image data. At this time, as indicated by 606, 1
It is necessary to vertically write only one dot per word, which means that a large amount of memory access occurs as compared with the case shown in 605 where a plurality of dots can be written at the same time. The problem of lowering occurs.

According to the present invention, in order to solve the above-mentioned problem, in the case of printing in a print page or band printing, a second drawing area smaller than the original drawing area is provided in a part of the print band, and the drawing area is set. A sufficient storage means such as a RAM for drawing is provided in the drawing apparatus, and a drawing of a plurality of points and lines in the second drawing area is temporarily generated in the RAM to generate a mask image. The area is drawn in a bitmap memory. In this case, the points and lines are treated as BOX drawing for drawing rectangles, including rectangles and the like. However, if only points and lines are required, the width may be line drawing.

Here, the BOX drawing in this embodiment will be described. As shown in FIG. 1, 101 is an application list (drawing processing list) configured on the memory, 102 is the configuration of a processing command, and 103 is B
OX drawing command configuration, 104 is a mask generator, 105 is an SRAM for performing partial drawing, 106 is BP
U and 107 are bitmap memories. 1 corresponds to the case where the selector 405 shown in FIG. 4 selects the RAM 404 and is a part of the configuration described so far. The selection of the selector 405 is performed by the controller 401 when the command 102 shown in FIG. Command 502 shown in FIG.
Is a BOX chain command, the RAM 4 shown in FIG.
04 is selected.

The rendering processing list for performing such processing is composed of a series of processing commands and BOX processing commands for performing a plurality of BOX renderings, and these are treated as one set of processing commands. For example, conventional drawing of characters and figures may be before and after.

This drawing method, that is, BOX chain drawing is designated by the processing command 102 shown in FIG.
A command for designating a BOX chain, coordinates of a second rendering area to be rendered on the RAM in the bitmap memory, width X and height Y of the second rendering area, and the number of the following BOX command chains are designated. Reference numeral 103 denotes the content of a BOX processing command constituting the BOX command chain, and specifies the coordinates of each BOX drawing, the height of the BOX drawing, and the width of the BOX drawing in the second drawing area.

When a processing command for designating a BOX command chain is input, the mask generator 104 reads the first BOX processing command from the drawing processing list 101, and
A BOX image having the width and height specified by the coordinates indicated by the command is generated and written on the RAM 105. Similarly, a BOX image is generated one after another by a BOX processing command, and is written on the RAM 105.
When processing is performed for the number of chains specified in 01, the RAM 1
The writing of the image into the area 105 is completed, and the image on the RAM 105 is drawn in the area of the size specified by the area X and the area Y at the coordinates on the bitmap memory specified by the processing command 102. At this time, drawing is performed by performing a logical operation on the data in the area of the bitmap memory 107 and the drawing logic specified by the processing command 102.

Next, in accordance with the print data from the host computer, a drawing processing list 101 including a processing command 102 for designating the above-described BOX command chain is generated, and a BOX executed by the CPU 301 shown in FIG.
The drawing process using the chain command will be described.

FIG. 7 is a flowchart showing a drawing process based on the BOX chain command. First, step S
In 701, it is determined whether or not the input data can be drawn in a BOX chain. Here, 603 shown in FIG.
If the drawing is possible in the BOX chain, the process proceeds to step S702, a BOX chain processing command is generated, and if the drawing is not possible in the BOX chain, the process proceeds to step S7.
In step 03, a normal drawing process command is generated.

Next, in step S704, when drawing or printing is performed in units of one page or band, it is determined whether the processing command of one band is completed. If not completed, the process returns to step S701 to complete. For example, the process advances to step S705 to start the drawing apparatus. Then, in step S706, it is determined whether the rendering of one page or one band has been completed.

Normally, the RAM in the drawing apparatus is constituted by an SRAM or the like, so that reading and writing can be performed at high speed. In addition, since the bit map memory is constituted by a large-capacity DRAM or the like, the speed is relatively low. Are collectively generated in the SRAM, and the drawing speed is remarkably improved by drawing the data in the bitmap memory at one time.

Further, since a normal memory forms one word with a width of about 32 bits or 64 bits, an enormous memory access is required to draw a large amount of vertical lines of 1 dot width. This speed difference appears more remarkably.

According to the present embodiment, it is possible to realize a drawing apparatus capable of providing a comfortable printing speed to the printing apparatus even when such data is input from the above-described viewpoint.

[Second Embodiment] Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

In the above-described embodiment, the drawing processing in the drawing apparatus when data such as a page description language is sent from the host computer has been described. In the second embodiment, image data in raster units is sent. The drawing processing in the drawing apparatus when the image comes will be described.

FIG. 8 is a diagram showing a drawing example of data transmitted from the host computer in the second embodiment. In FIG. 8, reference numeral 801 denotes an image created on the host computer; 802, print data sent as image data for each raster; 803, the paper transport direction of the printing apparatus corresponds to the raster direction of the original image; A print image 804 in a case different from the above is data to be drawn at that time.
Reference numeral 806 denotes drawing on the bitmap memory when the paper conveyance is different from that of the printing apparatus, and reference numeral 805 denotes drawing on the bitmap memory when the paper conveyance is the same as the printing apparatus.

As can be seen from FIG. 8, even when the host computer sends a raster image, a large amount of drawing of a vertical line having a width of one dot is required. Access to the bitmap memory occurs, and the printing speed is reduced.

FIG. 9 is a diagram showing a drawing process list and the operation of the drawing device in the second embodiment. In the figure, reference numeral 901 denotes a drawing processing list, 902 denotes a processing command,
Reference numeral 903 denotes an image processing command, reference numeral 904 denotes object data, and other configurations are the same as those shown in FIG. In this case, as in the first embodiment, a raster image chain is designated by a processing command, and thereafter, a plurality of command chains of image processing commands 1 to n are formed.

As shown, the processing command 902 specifies a raster image chain, and specifies the coordinates of the second drawing area, the area width X and the area height Y, and the number of command chains. Next, image processing commands are executed one after another as specified by the number of command chains. At this time, each image processing command specifies the coordinates in the area and the raster image data to be drawn. According to this, RAM1
In step 05, object data is read to form an image. After that, when all the images of the command chain number are formed, the BPU 106 calculates the destination data by the designated drawing logic, and the bit map memory 10
7 are drawn together. Other details are the same as in the first embodiment.

As described above, according to the second embodiment, high-speed drawing can be performed even if the paper transport direction is different in the print data sent as a raster image, and the printing speed can be improved. It becomes possible.

As described above, according to the embodiment,
Data sent as a set of broken points, lines, or rectangles that are converted into parts in raster units, output by application software, etc., and image data in raster units, Even when the direction is different from the raster direction, a high-speed memory is provided in the drawing apparatus, an inefficient data set is grouped for each certain area, an image is generated in the high-speed memory, and the drawing to the bitmap memory is collectively performed. In addition, a processing list that specifies an operation, a command that specifies an area, a drawing logic, a drawing amount, and the like, and a command that specifies each image are set as a command chain, thereby improving the drawing speed. Alternatively, it is possible to provide an image processing apparatus that realizes an improvement in printing speed.

The present invention can be applied to a system including a plurality of devices (for example, a host computer, an interface device, a reader, a printer, etc.), but can be applied to a single device (for example, a copier, a facsimile) Device).

Further, an object of the present invention is to supply a storage medium storing a program code of software for realizing the functions of the above-described embodiments to a system or an apparatus, and a computer (CPU or MP) of the system or apparatus.
It goes without saying that U) is also achieved by reading and executing the program code stored in the storage medium.

In this case, the program code itself read from the storage medium implements the functions of the above-described embodiment, and the storage medium storing the program code constitutes the present invention.

As a storage medium for supplying the program code, for example, a floppy (registered trademark) disk,
Hard disk, optical disk, magneto-optical disk, CD-
A ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, and the like can be used.

When the computer executes the readout program code, not only the functions of the above-described embodiment are realized, but also the OS (Operating System) running on the computer based on the instruction of the program code. ) May perform some or all of the actual processing, and the processing may realize the functions of the above-described embodiments.

Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, based on the instructions of the program code, It goes without saying that the CPU included in the function expansion board or the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

[0056]

As described above, according to the present invention,
A memory such as an SRAM, which is much faster than a bitmap memory, is provided in a drawing apparatus, and inefficient data sets are grouped into a certain area to generate an image in a high-speed memory. Can be performed collectively.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a drawing operation of a drawing apparatus according to an embodiment.

FIG. 2 is a functional block diagram illustrating a configuration of a printing apparatus.

FIG. 3 is a block diagram illustrating a hardware configuration of the printing apparatus.

FIG. 4 is a diagram showing a configuration of a renderer 306 shown in FIG.

FIG. 5 is a diagram for explaining a normal object drawing operation of the drawing device 210 shown in FIG. 2;

FIG. 6 is a diagram illustrating a drawing example of data transmitted from a host computer.

FIG. 7 is a flowchart showing a drawing process based on a BOX chain command.

FIG. 8 is a diagram illustrating a drawing example of data transmitted from a host computer in the second embodiment.

FIG. 9 is a diagram illustrating a drawing processing list and an operation of the drawing apparatus according to the second embodiment.

[Explanation of symbols]

 101 drawing processing list 102 processing command 103 BOX processing command 104 mask generator 105 RAM 106 BPU 107 bitmap memory

Claims (24)

[Claims] 1. An image processing apparatus for generating a drawing processing list based on print data from an information processing apparatus, performing bitmap data drawing processing according to the drawing processing list, and outputting the drawing processing list to a printing apparatus. The drawing processing list includes a first processing command for instructing processing to a bitmap memory and a second processing command for instructing processing to a memory different from the bitmap memory in accordance with print data from the apparatus. Generating bitmap data to a memory different from the bitmap memory based on the second processing command;
An image processing device, comprising: drawing means for drawing the generated bitmap data in the bitmap memory based on the first command. 2. The image processing apparatus according to claim 1, wherein the memory different from the bitmap memory is a memory that is faster than the bitmap memory. 3. The image processing apparatus according to claim 1, wherein the generating unit includes an analyzing unit that analyzes print data from the information processing apparatus, and generates a drawing processing list in which the second processing command is chained according to an analysis result of the analyzing unit. The image processing apparatus according to claim 1, wherein: 4. The image processing apparatus according to claim 1, wherein the generating unit generates a second processing command when the print data draws a plurality of point, line, or rectangular images. . 5. The method according to claim 1, wherein the generating unit generates the second command when the print data draws a plurality of point, line, or rectangular images rotated in accordance with a scanning direction of the printing apparatus. The image processing apparatus according to claim 1, wherein: 6. The image processing apparatus according to claim 1, wherein the generation unit generates the second command when the print data draws a plurality of raster images. 7. The method according to claim 7, wherein the generating unit generates the second command when the print data draws a plurality of raster images rotated in accordance with a scan direction of the printing apparatus. 2. The image processing device according to 1. 8. A processing method of an image processing apparatus for generating a drawing processing list based on print data from an information processing apparatus, performing bitmap data drawing processing according to the drawing processing list, and outputting the bitmap data to a printing apparatus. A first processing command instructing processing to a bitmap memory in accordance with print data from an information processing apparatus, and a second processing command instructing processing to a memory different from the bitmap memory. Generating a drawing processing list; generating bitmap data in a memory different from the bitmap memory based on the second processing command;
A drawing step of drawing the generated bitmap data in the bitmap memory based on the first command. 9. The processing method according to claim 8, wherein the memory different from the bitmap memory is a faster memory than the bitmap memory. 10. The generating step includes an analyzing step of analyzing print data from the information processing apparatus, and generating a drawing processing list in which the second processing commands are chained according to the analysis result. A processing method for the image processing apparatus according to claim 8. 11. The image processing apparatus according to claim 8, wherein the generating step generates a second processing command when the print data draws a plurality of point, line, or rectangular images. Processing method. 12. The method according to claim 12, wherein the generating step includes generating the second command when the print data draws a plurality of point, line, or rectangular images rotated in accordance with a scan direction of the printing apparatus. The processing method of the image processing device according to claim 8. 13. The processing method according to claim 8, wherein the generating step generates the second command when the print data draws a plurality of raster images. 14. The method according to claim 1, wherein the generating step generates the second command when the print data draws a plurality of raster images rotated in accordance with a scanning direction of the printing apparatus. 9. The processing method of the image processing apparatus according to 8. 15. A program for a processing method in an image processing apparatus which generates a drawing processing list based on print data from an information processing apparatus, performs bitmap data drawing processing according to the drawing processing list, and outputs the drawing processing list to a printing apparatus. A first processing command instructing processing to a bitmap memory in accordance with print data from the information processing apparatus; and a second processing command instructing processing to a memory different from the bitmap memory. And generating a bitmap data to a memory different from the bitmap memory based on the second processing command.
A code for a drawing step of drawing the generated bitmap data in the bitmap memory based on the first command. 16. The program according to claim 15, wherein the memory different from the bitmap memory is a memory that is faster than the bitmap memory. 17. The code of the generation step includes a code of an analysis step of analyzing print data from the information processing apparatus, and generates a drawing processing list in which the second processing command is chained according to the analysis result. The program according to claim 15, characterized by: 18. The code of the generating step, when the print data draws a plurality of point, line or rectangular images,
The program according to claim 15, wherein the program generates a second processing command. 19. The code of the generation step generates the second command when the print data draws a plurality of images of points, lines, or rectangles rotated in accordance with the scanning direction of the printing apparatus. 16. The method according to claim 15, wherein
The program described in. 20. The program according to claim 15, wherein the code of the generation step generates the second command when the print data draws a plurality of raster images. 21. The code of the generating step generates the second command when the print data draws a plurality of raster images rotated in accordance with a scanning direction of the printing apparatus. The program according to claim 15. 22. A computer-readable storage medium storing the program according to claim 15. Description: 23. Generating means for generating bitmap data of a drawing object in a memory different from the bitmap memory, and drawing means for collectively drawing the bitmap data generated by the generating means on the bitmap memory. An image processing apparatus characterized by the above-mentioned. 24. A generating step of generating bitmap data of a drawing object in a memory different from a bitmap memory, and a drawing step of collectively drawing bitmap data generated in the generating step in the bitmap memory. An image processing method comprising: