Data processing apparatus, method for controlling the same, and storage medium storing program

A method for controlling a data processing apparatus having a storage unit configured to store reference data of a filter operation and coefficient data of filters to be used for the filter operation, the method comprising:

• parallelly performing the filter operation on the reference data and the coefficient data of the filters by using a plurality of operators;
• holding a predetermined number of pieces of reference data transferred from the storage unit, and supplying the transferred reference data to the plurality of operators via a first supply unit;
• holding coefficient data of a first filter and coefficient data of a second filter transferred from the storage unit, and supplying the coefficient data of the first and second filters to the plurality of operators via a second supply unit;
• and
• controlling the second supply unit to supply the coefficient data of the first filter to a first operator of the plurality of operators, and supply the coefficient data of the second filter to a second operator included in the plurality of operators.

A non-transitory computer-readable storage medium storing a program for causing a computer having a storage unit configured to store reference data of a filter operation and coefficient data of filters to be used for the filter operation to function as:

• a plurality of operators configured to parallelly perform the filter operation on the reference data and the coefficient data of the filters;
• a first supply unit configured to hold a predetermined number of pieces of reference data transferred from the storage unit, and supply the transferred reference data to the plurality of operators;
• a second supply unit configured to hold coefficient data of a first filter and coefficient data of a second filter transferred from the storage unit, and supply the coefficient data of the first and second filters to the plurality of operators;
• and
• a control unit configured to control the second supply unit to supply the coefficient data of the first filter to a first operator of the plurality of operators, and supply the coefficient data of the second filter to a second operator of the plurality of operators.

A data processing apparatus comprising:

• a data storage unit configured to store target data;
• a coefficient storage unit configured to store a pair of a plurality of pairs of filter coefficients corresponding to a plurality of types of filter operations;
• a plurality of operation units divided into a plurality of groups configured to parallelly perform a plurality of filter operations;
• a data supply unit to configured to sequentially read partial data of the target data from the data storage unit, select target data for the filter operations from the partial data for each of the groups, and parallelly supply the selected data to the plurality of operation units;
• a coefficient supply unit configured to read the pair of a plurality of pairs of filter coefficients from the coefficient storage unit, select the pair of filter coefficients for each of the groups, and parallelly supply the pair to the plurality of operation units;
• and
• a control unit configured to control a selection of target data for the filter operations by the data supply unit, and a selection of the pair of filter coefficients by the coefficient supply unit, based on operation conditions.

A data processing method performed by a data processing apparatus having a data storage unit configured to store target data, and a coefficient storage unit configured to store a pair of a plurality of pairs of filter coefficients corresponding to a plurality of types of filter operations, the method comprising:

• sequentially reading partial data of the target data from the data storage unit, selecting target data for the filter operations from the partial data for each of groups, and parallelly supplying the selected data to a plurality of operation units divided into a plurality of groups for parallelly performing a plurality of filter operations;
• reading the pair of a plurality of pairs of filter coefficients from the coefficient storage unit, selecting the pair of filter coefficients for each of the groups, and parallelly supplying the pair to the plurality of operation units;
• and
• controlling a selection of target data for the filter operations by the data supply, and a selection of the pair of filter coefficients by the coefficient supply, based on operation conditions.

A non-transitory computer-readable storage medium storing a program for causing a computer having a data storage unit configured to store target data, and a coefficient storage unit configured to store a pair of a plurality of pairs of filter coefficients corresponding to a plurality of types of filter operations to function as:

• a plurality of operation units divided into a plurality of groups configured to parallelly perform a plurality of filter operations;
• a data supply unit to configured to sequentially read partial data of the target data from the data storage unit, select target data for the filter operations from the partial data for each of the groups, and parallelly supply the selected data to the plurality of operation units;
• a coefficient supply unit configured to read the pair of a plurality of pairs of filter coefficients from the coefficient storage unit, select the pair of filter coefficients for each of the groups, and parallelly supply the pair to the plurality of operation units;
• and
• a control unit configured to control a selection of target data for the filter operations by the data supply unit, and a selection of the pair of filter coefficients by the coefficient supply unit, based on operation conditions.