| /* |
| * Copyright (c) 2016, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #ifndef AOM_AV1_COMMON_SCAN_H_ |
| #define AOM_AV1_COMMON_SCAN_H_ |
| |
| #include "aom/aom_integer.h" |
| #include "aom_ports/mem.h" |
| |
| #include "av1/common/enums.h" |
| #include "av1/common/onyxc_int.h" |
| #include "av1/common/blockd.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define MAX_NEIGHBORS 2 |
| |
| enum { |
| SCAN_MODE_ZIG_ZAG, |
| SCAN_MODE_COL_DIAG, |
| SCAN_MODE_ROW_DIAG, |
| SCAN_MODE_COL_1D, |
| SCAN_MODE_ROW_1D, |
| SCAN_MODES |
| } UENUM1BYTE(SCAN_MODE); |
| |
| extern const SCAN_ORDER av1_default_scan_orders[TX_SIZES]; |
| extern const SCAN_ORDER av1_scan_orders[TX_SIZES_ALL][TX_TYPES]; |
| |
| void av1_deliver_eob_threshold(const AV1_COMMON *cm, MACROBLOCKD *xd); |
| |
| static INLINE const SCAN_ORDER *get_default_scan(TX_SIZE tx_size, |
| TX_TYPE tx_type) { |
| return &av1_scan_orders[tx_size][tx_type]; |
| } |
| |
| static INLINE const SCAN_ORDER *get_scan(TX_SIZE tx_size, TX_TYPE tx_type) { |
| return get_default_scan(tx_size, tx_type); |
| } |
| |
| #if CONFIG_DSPL_RESIDUAL |
| /*! |
| * Scans in an input array into an output array in the order defined by |
| * scan_order. The ith element of output dst[i] = src[scan_order->scan[i]] |
| * |
| * \param src Pointer to start of input array |
| * \param dst Pointer to start of output array |
| * \param eob Number of elements to scan into the output, e.g., if eob=N |
| then N elements would be written to dst |
| * \param scan_order The scan order to use |
| */ |
| void scan_array(const tran_low_t *const src, tran_low_t *const dst, |
| const int eob, const SCAN_ORDER *const scan_order); |
| |
| /*! |
| * Scans out an input array into an output array in the order defined by |
| * scan_order. The ith input element src[i] affects the output as follows: |
| * dst[scan_order->scan[i]] = src[i] |
| * |
| * \param src Pointer to start of input array |
| * \param dst Pointer to start of output array |
| * \param eob Number of elements to scan into the output, e.g., if eob=N |
| then N elements would be read from src |
| * \param scan_order The scan scan order to use |
| */ |
| void iscan_array(const tran_low_t *const src, tran_low_t *const dst, |
| const int eob, const SCAN_ORDER *const scan_order); |
| #endif // CONFIG_DSPL_RESIDUAL |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // AOM_AV1_COMMON_SCAN_H_ |