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/* ************************************************************************
* Copyright 2013 Advanced Micro Devices, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ************************************************************************/
#ifndef TILE_ITER_H
#define TILE_ITER_H
#include "blas_kgen.h"
typedef enum TileIterFlags {
// iterate in the backward direction along logical rows
TILE_ITER_BACKWARD_ROWS = 0x01,
// iterate in the backward direction along logical columns
TILE_ITER_BACKWARD_COLS = 0x02
} TileIterFlags;
typedef enum PhyIterFlags {
PHY_ITER_BACKWARD_LINES = 0x01,
PHY_ITER_BACKWARD_VECS = 0x02,
} PhyIterFlags;
typedef struct PhysTileIterator {
int row; // logical tile row
int col; // logical tile column
int phyIterFlags;
int isLogRowMaj;
int vecLen;
int line; // physical line
int vec; // vector in physical line
int nrLines; // physical line number
int nrVecs; // physical vec number
} PhysTileIterator;
//-----------------------------------------------------------------------------
int
iterInit(PhysTileIterator *iter,
const Tile *tile,
int vecLen,
unsigned int tileIterFlags);
int
iterIterate(PhysTileIterator *iter);
/*
* Check if the entire tile has been iterated. Return true if the iterator is
* at the next element beyond the last.
*/
int
iterIsEnd(const PhysTileIterator *iter);
int
iterSeek( PhysTileIterator *iter,
int row,
int col );
int
iterSeekPhys( PhysTileIterator *iter,
int line,
int vec );
#endif
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