JPH10116338A - Pipeline controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate complicated bus control, to facilitate correspondence to the change of the order of processings and the number of stages and to speed up the processing of a whole system by judging whether data flowing on a data transmission means is to be processed in a corresponding processing means and outputting data to the corresponding processing means when it is judged to be data to be processed. SOLUTION: When picture data with process data is inputted to a first slot 101, the picture data is sent to a process ID discrimination part (2) 205 corresponding to a second slot 201, a process ID discrimination part (3) 305 corresponding to a third slot 301 and a process ID discrimination part (4) 405 corresponding to a fourth slot 401 through a data input part (1) 103. The process ID discrimination parts 205, 305 and 405 discriminate the matching/non-matching of process ID corresponding to the respective slots stored in the process ID storage parts 204, 304 and 404 with process ID on the top of process data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipeline control device to which a plurality of processing means for respectively performing different data processing are connected and which can form an arbitrary pipeline.

[0002]

2. Description of the Related Art As a conventional pipeline control, in a pipeline multi-connection control system described in Japanese Patent Application Laid-Open No. Sho 62-138973, the number of processes is controlled by a control means attached to each module of a pipeline component. And the number of initial skips and the number of interval skips are set. According to the set values, the timing at which each module takes in or outputs the image data can be selected in synchronization with the system timing. There has been disclosed a technology that enables pipeline multi-connection for connecting a plurality of modules.

[0003]

However, in such pipeline control, it is necessary to make settings for all processing modules and input / output modules in order to determine one data transfer flow. Many steps must be taken to respond to changes in the number of stages. Also,
It is necessary to have an input / output control unit for each processing and input / output module, and there is a problem that the ratio of the data transfer control unit to the entire system increases.

[0004]

SUMMARY OF THE INVENTION The present invention is a pipeline control device designed to solve such a problem. That is, the present invention relates to a pipeline control device to which a plurality of processing units each performing different data processing are connected, wherein the data processed by one of the plurality of processing units is transferred to another processing unit. Transmitting means, a plurality of determining means provided corresponding to each of the plurality of processing means, and determining whether data flowing on the data transmitting means should be processed by the corresponding processing means; and a plurality of processing means. A plurality of output means for outputting data flowing on the data transmission means to the corresponding processing means when the data to be processed is determined by the determination means, and a plurality of output means for each of the plurality of processing means. And a plurality of input means for receiving data processed by the corresponding processing means from the data transmission means.

Further, process data indicating the order to be processed is added to the data flowing through the data transmission means, and the determination means makes a determination by referring to the process data.

In the present invention, a plurality of processing means are connected via the data transmission means, and the judgment means provided corresponding to each processing means refers to the process data added to the data. , The order of processing means for processing data is determined. That is, each processing unit can perform processing without recognizing which processing unit sends the data or to which processing unit the processed data is transferred. Also, by rearranging the process data, an arbitrary pipeline can be configured.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a pipeline control device according to the present invention. FIG. 1 is a block diagram of a pipeline control device according to the present embodiment, and FIG. 2 is a block diagram illustrating a configuration example of the pipeline control device. In the present embodiment, a case in which a pipeline control device is mainly applied to an image processing device will be described as an example.

As shown in FIG. 2, an image data input unit 2, an image data processing unit (A) 3, and an image data processing unit (B) 4
And the image data output unit 4 are slots (first slot 101, second slot 201,
Third slot 301, fourth slot 401).

As shown in FIG. 1, the pipeline control device 1 is configured to correspond to each slot. That is, the pipeline controller 1 shown in FIG. 1 has four slots (a first slot 101, a second slot 201,
A third slot 301 and a fourth slot 401) are provided.

For the first slot 101, a process data adding unit (1) 102, a data input unit (1) 103, a process ID storage unit (1) 104, a process ID inversion unit (1) 105, Data output unit (1) 10
6, a process data separation unit (1) 107 and a process data storage unit (1) 108 are provided. The first slot 101 is connected to the image data input unit 2 shown in FIG.

For the second slot 201, a process data adding unit (2) 202 and a data input unit (2)
203, process ID storage unit (2) 204, process I
A D inversion unit (2) 205, a data output unit (2) 206, a process data separation unit (2) 207, and a process data storage unit (2) 208 are provided. This second slot 2
01 is connected to the image data processing unit (A) 3 shown in FIG.

For the third slot 301, a process data adding unit (3) 302 and a data input unit (3)
303, process ID storage unit (3) 304, process I
A D inversion unit (3) 305, a data output unit (3) 306, a process data separation unit (3) 307, and a process data storage unit (3) 308 are provided. This third slot 3
01 is connected to the image data processing section (B) 4 shown in FIG.

Further, for the fourth slot 301,
Process data adding unit (4) 402, data input unit (4) 403, process ID storage unit (4) 404, process ID inversion unit (4) 405, data output unit (4) 40
6, a process data separation unit (4) 407 and a process data storage unit (4) 408 are provided. The image data output unit 5 shown in FIG. 2 is connected to the fourth slot 401.

FIG. 3 is a diagram showing an example of the format of process data added to data handled in the pipeline control device 1 in the present embodiment. As described above, the process data portion is composed of the process ID described in the order of the desired processing and the process data end code. The data to be processed is after the process data portion.

The pipeline control device 1 according to the present embodiment
The data is transferred in the order along the process ID of the process data portion added to the data, thereby forming a pipeline. In other words, the process ID is determined by the pipeline control device 1, and the corresponding processing means such as the image data input unit 2, the image data processing unit (A) 3, the image data processing unit (B) 4, and the image data output unit 5 Transfer data to

The image data input unit 2, image data processing unit (A) 3, image data processing unit (B) 4,
The process ID of the image data output unit 5 receives and processes only the data and transfers the data to the pipeline control device 1. Therefore, the process ID transfers which data is sent from which processing unit and which processing data is transferred to which processing unit. The processing can be performed without recognizing the fact.

Next, a specific example of data processing will be described. FIG. 4 is a diagram (part 1) illustrating a configuration example of process data. This process data includes process ID 2,
It is composed of a process ID 3, a process ID 4, and a process data end code (Process End). That is,
The process data is obtained by converting the data obtained by the image input unit 2 into an image data processing unit (A) connected to the second slot 201.
3, and then the image data processing unit (B) 4 connected to the third slot 301, and finally the image data output unit 5 connected to the fourth slot 401. ing.

FIG. 5 is a diagram for explaining data transfer timing when processing is performed in the order based on the process data shown in FIG. That is, the image data to which the process data is added is transferred from the image data input unit 2 to the pipeline control device 1. The pipeline control device 1 first transfers only the image data to the image data processing unit (A) 3 with reference to the process data.

Next, the processed (A) image data is transferred from the image data processing section (A) 3 to the pipeline controller 1, where the processing (A) is performed with reference to the previous process data.
The processed image data is transferred to the image data processing unit (B) 4. The processed (A) and processed (B) image data is transferred from the image data processing unit (B) 4 to the pipeline control device 1, and transferred to the image data processing unit 5 with reference to the previous process data. .

This flow will be described with reference to FIG. 1. First, before image data is input, each process data storage unit of the pipeline control device 1, that is, the process data storage unit (1) 108, the process data storage unit (2) 2
08, the process data storage unit (3) 308, and the contents of the process data storage unit (4) 408 have been cleared.

In this state, when image data with process data as shown in FIG. 4 is input to the first slot 101, the image data is passed through the data input unit (1) 103 to a process corresponding to the second slot 201. The ID is transmitted to the ID determining unit (2) 205, the process ID determining unit (3) 305 corresponding to the third slot 301, and the process ID determining unit (4) 405 corresponding to the fourth slot 401.

The process ID determining unit (2) 205, the process ID determining unit (3) 305, and the process ID determining unit (4)
Reference numeral 405 denotes a process ID corresponding to each slot stored in the process ID storage unit (2) 204, the process ID storage unit (3) 304, and the process ID storage unit (4) 404, respectively, and the top of the process data. Is determined to match or not match with the process ID in.

In the process data shown in FIG. 4, since the process ID at the top is "2", the second slot 2
01, the process ID discriminating unit (2) 205 discriminates the coincidence of the process IDs, and outputs the image data from the data output unit (2) 206 to the process data separating unit (2) 20.
Hand over to 7.

In the process data separation unit (2) 207,
The image data with the process data is separated into the process data and the image data, the first process ID (here, process ID 2) of the process data is removed, and the remaining (here, process IDs 3 and 4) are stored in the process data storage unit. (2) Store in 208. Then, only the remaining image data obtained by separating the process data is transferred from the second slot 201 to the image data processing unit (A) 3.

Next, the image data (processed A) processed by the image data processing section (A) 3 is again transferred to the second slot 2.
01 and the process data adding unit (2) 202
Passed to In the process data adding unit (2) 202,
The process data stored in the process data storage unit (2) 208 is added to the passed image data (process A completed). As a result, the process data (process IDs 3 and 4) is added to the image data (process A completed) and is passed to the data input unit (2) 203.

The image data with the process data passed to the data input unit (2) 203 is passed to the process ID determining unit (1) 105, the process ID determining unit (3) 305, and the process ID determining unit (4) 405. It is.

Then, similarly to the above, the process ID determining unit (1) 105, the process ID determining unit (3) 205, and the process ID determining unit (4) 405 include the process ID storage unit (1) 104, The storage unit (3) 304 and the process ID corresponding to each slot stored in the process ID storage unit (4) 404 and the process ID at the top of the process data are determined to match or not match.

At this stage, since the process ID at the top of the process data is "3", the third
Process ID determining unit (3) 3 corresponding to slot 301
05 determines that the process IDs match, and passes the image data from the data output unit (3) 306 to the process data separation unit (3) 307.

In the process data separation unit (3) 307,
The image data with the process data is separated into process data and image data, the first process ID (here, process ID 3) of the process data is removed, and the remaining (here, process ID 4) is stored in the process data storage unit (3). ) 308. Then, only the remaining image data obtained by separating the process data is transferred from the third slot 301 to the image data processing unit (B) 4.

Further, the image data (processes A and B already processed) processed by the image data processing unit (B) 4 is input again from the third slot 301, and the process data adding unit (3)
302. Process data adding unit (3) 302
Then, the process data stored in the process data storage unit (3) 308 is added to the passed image data (processes A and B). Thereby, the image data (processing A, B
), Process data (process ID 4) is added and passed to the data input unit (3) 303.

The image data with the process data passed to the data input unit (3) 303 is passed to the process ID determining unit (1) 105, the process ID determining unit (2) 205, and the process ID determining unit (4) 405. It is.

Then, similarly, the process ID determining unit (1)
105, process ID determination unit (2) 205, process I
The D determination unit (4) 405 includes a process ID corresponding to each slot stored in the process ID storage unit (1) 104, the process ID storage unit (2) 204, and the process ID storage unit (4) 404, respectively. It is determined whether the process data matches the process ID at the top of the process data.

At this stage, since the process ID at the top of the process data is "4", the fourth
Process ID discriminator (4) 4 corresponding to slot 401
05 determines that the process IDs match, and passes the image data from the data output unit (4) 406 to the process data separation unit (4) 407.

In the process data separation unit (4) 407,
The image data with process data is separated into process data and image data, and the process ID (here, process ID 4) at the beginning of the process data is removed and the remaining (here, process data end code) is stored in the process data storage unit. (4) Store in 408. When the process data end code is stored, it is not necessary to input data after the next processing from the slot. Then, only the remaining image data obtained by separating the process data is transferred from the fourth slot 401 to the image data output unit 5.

By such a series of processing, the processing by each processing means is executed in the order of the process ID added to the image data. At this time, since only the image data is passed to each processing unit, the processing unit only processes the image data without recognizing where the image data was passed from or where to pass the processed image data. Should be performed.

FIG. 6 is a diagram for explaining the flow of data.
This example shows a case where data is input to the second slot and the process IDs 4 and 3 are stored in the process data storage unit (2) 208.

In the process data adding unit (2) 202,
A process ID stored in the process data storage unit (2) 208 is added to the data as process data and output to the data input unit (2) 203. As a result, the process ID is set as the process data
4 and 3 are added.

The data to which the process data has been added is used as a process ID determining unit (1) 1 corresponding to each slot.
05, process ID determination unit (3) 305, process ID
It is passed to the determination unit (4) 405.

Then, the process ID determining unit (1) 10
5. The process ID determination unit (3) 305 and the process ID determination unit (4) 405 are respectively a process ID storage unit (1) 1
04, process ID storage unit (3) 304, process ID
It determines whether or not the process ID corresponding to each slot stored in the storage unit (4) 404 matches the process ID at the top of the process data.

At this stage, since the process ID at the top of the process data is "4", the fourth
Process ID discriminator (4) 4 corresponding to slot 401
05 determines that the process IDs match, and passes the image data from the data output unit (4) 406 to the process data separation unit (4) 407.

In the process data separation unit (4) 407,
The image data with the process data is separated into the process data and the image data, the first process ID (here, process ID 4) of the process data is removed, and the remaining (here, process ID 3) is stored in the process data storage unit (4). ) 408. Then, only the remaining image data obtained by separating the process data is transferred from the fourth slot 401 to the image data output unit 5.

As described above, in the pipeline control device 1 according to the present embodiment, since each processing is performed in accordance with the process data added to the data, an arbitrary pipeline can be executed by rearranging the process data. It can be configured. For example, when it is desired to perform processing of data processing (B) to data processing (A) to data output to data input on image data, as shown in FIG. If the process ID 4, the process ID 1, and the process data end code (Process End) are set in this order, it is possible to configure a pipeline that executes this processing without making any change to each processing unit.

When it is necessary to set operation parameters for each processing unit / output unit before the image data is transmitted,
The process data for parameter setting as shown in FIG. 8 is sent to the pipeline controller 1 at the timing as shown in FIG.

That is, at the beginning of the process data shown in FIG. 8, the process ID of the slot to which the processing unit / output unit to which the parameter is set is connected is described, and in the second row, the image data input unit 2 Describes the process ID of the slot to which is connected. After the process data end code, there are a code (parameter code) indicating a parameter instead of the image data of the above example, and a setting parameter.

With such process data, FIG.
As shown in (1), the parameters input from the image data input unit 2 are passed to the image data processing unit (A) 3, the image data processing unit (B) 4, and the image data output unit 5, and from each processing unit / output unit, The status is returned to the image data input unit 2.

When only a status request to each processing unit / output unit is to be made, a code for requesting a status is described instead of the parameter code shown in FIG. 8 and sent at the same timing as when setting parameters. What should I do?

The setting of the parameters and the status request are not limited to the image data input unit 2; the image data processing unit (A) 3 and the image data processing unit (B) 4 transmit the image data input unit 2 and the image data. You may make it perform to the output part 5.

Further, when it is desired to control image input and processing output from the image data processing section (A) 3, the image data processing section (B) 4, and the image data output section 5 (A) 3, for example, FIG. What is necessary is just to send the process data as shown to the pipeline controller 1 at the timing as shown in FIG.

In the example of the process data shown in FIG. 10, the image data processing unit (A) 3 requests the image data input unit 2 for image data, and the image data is processed by the image data processing unit (B) 4. The image data is then processed by the image data processing unit (A) 3 and sent to the image data output unit 5. The status is sent from the image data output unit 5 to the image data processing unit (A) 3.

As described above, the image data processing unit (A) 3
Image data processing unit (B) 4, image data output unit 5 (A)
If you want to control image input and processing output from 3,
A code (data request) indicating a data request may be transferred instead of data.

[0051]

As described above, the pipeline control device of the present invention has the following effects. In other words, even if the flow of data processing from the input unit to the output unit becomes complicated, the configuration of the pipeline can be changed only by the process data at the head of the data. It is easy to respond to changes. In addition, a plurality of processes can be performed in parallel on data continuously transmitted from the input unit, and the processing speed of the entire system can be increased. Further, the input unit, each processing unit, and the output unit, which are independently connected to the pipeline control device via a slot, do not need to have an input / output control unit for the pipeline, and have a hardware and software configuration. Can be greatly simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a pipeline control device according to an embodiment.

FIG. 2 is a block diagram illustrating a configuration example.

FIG. 3 is a diagram showing an example of a process data format.

FIG. 4 is a diagram showing a configuration example of process data (part 1)
It is.

FIG. 5 is a diagram (part 1) for explaining data transfer timing;

FIG. 6 is a diagram illustrating the flow of data.

FIG. 7 is a diagram showing a configuration example of process data (part 2)
It is.

FIG. 8 is a view showing a configuration example of process data (part 3).
It is.

FIG. 9 is a diagram (part 2) for explaining data transfer timing;

FIG. 10 is a diagram (part 4) illustrating a configuration example of process data;

FIG. 11 is a diagram (part 3) for explaining data transfer timing;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 pipeline control device 2 image data input unit 3 image data processing unit (A) 4 image data processing unit (B) 5 image data output unit

Claims (3)

[Claims] 1. A pipeline control device to which a plurality of processing units each performing different data processing are connected, wherein data processed by one of the plurality of processing units is transferred to another processing unit. Transmission means, provided in correspondence with each of the plurality of processing means, and a plurality of determination means for determining whether data flowing on the data transmission means should be processed by the corresponding processing means, A plurality of output means provided in correspondence with each of the processing means, and outputting data flowing on the data transmission means to the corresponding processing means when the data to be processed is determined by the determination means; A plurality of input means provided corresponding to each of the processing means, and receiving data processed by the corresponding processing means from the data transmission means. Pipeline control apparatus according to symptoms. 2. The pipeline control device according to claim 1, wherein process data indicating an order to be processed is added to the data, and the determination unit refers to the process data to execute the process. A pipeline control device for making a determination. 3. The separating means for separating the process data from the data with process data output by the output means and transferring only the data to the processing means, in addition to the configuration of the pipeline control device according to claim 1. Based on the process data separated by the separation means at a stage prior to transfer to the processing means by the input means, adding process data indicating processing to be performed next to the data received by the input means; A pipeline control device comprising: