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#ifndef CONSTANT_LOOKUP_H
#define CONSTANT_LOOKUP_H

#include "intel-ipsec-mb.h"

#ifdef SAFE_LOOKUP
#define LOOKUP8_SSE(_table, _idx, _size) \
        lookup_8bit_sse(_table, _idx, _size)
#define LOOKUP8_AVX(_table, _idx, _size) \
        lookup_8bit_avx(_table, _idx, _size)
#define LOOKUP16_SSE(_table, _idx, _size) \
        lookup_16bit_sse(_table, _idx, _size)
#define LOOKUP16_AVX(_table, _idx, _size) \
        lookup_16bit_avx(_table, _idx, _size)
#define LOOKUP32_SSE(_table, _idx, _size) \
        lookup_32bit_sse(_table, _idx, _size)
#define LOOKUP32_AVX(_table, _idx, _size) \
        lookup_32bit_avx(_table, _idx, _size)
#define LOOKUP64_SSE(_table, _idx, _size) \
        lookup_64bit_sse(_table, _idx, _size)
#define LOOKUP64_AVX(_table, _idx, _size) \
        lookup_64bit_avx(_table, _idx, _size)
#else
#define LOOKUP8_SSE(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP8_AVX(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP16_SSE(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP16_AVX(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP32_SSE(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP32_AVX(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP64_SSE(_table, _idx, _size) \
        _table[_idx]
#define LOOKUP64_AVX(_table, _idx, _size) \
        _table[_idx]
#endif

/*
 * @brief Constant time SSE lookup function on variable size table
 *        with 8-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 8 bit elements in the table (multiple of 16)
 *
 * @return value to lookup
 */
uint8_t
lookup_8bit_sse(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time AVX lookup function on variable size table
 *        with 8-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 8 bit elements in the table (multiple of 16)
 *
 * @return value to lookup
 */
uint8_t
lookup_8bit_avx(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time SSE lookup function on variable size table
 *        with 16-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 16 bit elements in the table (multiple of 8)
 *
 * @return value to lookup
 */
uint16_t
lookup_16bit_sse(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time AVX lookup function on variable size table
 *        with 16-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 16 bit elements in the table (multiple of 8)
 *
 * @return value to lookup
 */
uint16_t
lookup_16bit_avx(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time SSE lookup function on
 *        variable size table with 32-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 32 bit elements in the table (multiple of 4)
 *
 * @return value to lookup
 */
uint32_t
lookup_32bit_sse(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time AVX lookup function on
 *        variable size table with 32-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 32 bit elements in the table (multiple of 4)
 *
 * @return value to lookup
 */
uint32_t
lookup_32bit_avx(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time SSE lookup function on
 *        variable size table with 64-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 64 bit elements in the table (multiple of 2)
 *
 * @return value to lookup
 */
uint64_t
lookup_64bit_sse(const void *table, const uint32_t idx, const uint32_t size);

/*
 * @brief Constant time AVX lookup function on
 *        variable size table with 64-bit values
 *
 * @param[in] table     Pointer to the table to look up (16-byte aligned)
 * @param[in] idx       Index to look up
 * @param[in] size      Number of 64 bit elements in the table (multiple of 2)
 *
 * @return value to lookup
 */
uint64_t
lookup_64bit_avx(const void *table, const uint32_t idx, const uint32_t size);

#endif /* CONSTANT_LOOKUP_H */