| /* |
| * Copyright (c) 2013 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef VP9_COMMON_VP9_SCAN_H_ |
| #define VP9_COMMON_VP9_SCAN_H_ |
| |
| #include "vpx/vpx_integer.h" |
| #include "vpx_ports/mem.h" |
| |
| #include "vp9/common/vp9_enums.h" |
| |
| #define MAX_NEIGHBORS 2 |
| |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_4x4[16]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_4x4[16]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_4x4[16]); |
| |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_8x8[64]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_8x8[64]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_8x8[64]); |
| |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_16x16[256]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_16x16[256]); |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_16x16[256]); |
| |
| extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_32x32[1024]); |
| |
| extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_4x4[16]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_4x4[16]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_4x4[16]); |
| |
| extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_8x8[64]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_8x8[64]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_8x8[64]); |
| |
| extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_16x16[256]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_16x16[256]); |
| extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_16x16[256]); |
| |
| extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_32x32[1024]); |
| |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_default_scan_4x4_neighbors[17 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_col_scan_4x4_neighbors[17 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_row_scan_4x4_neighbors[17 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_col_scan_8x8_neighbors[65 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_row_scan_8x8_neighbors[65 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_default_scan_8x8_neighbors[65 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_col_scan_16x16_neighbors[257 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_row_scan_16x16_neighbors[257 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_default_scan_16x16_neighbors[257 * MAX_NEIGHBORS]); |
| extern DECLARE_ALIGNED(16, int16_t, |
| vp9_default_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]); |
| |
| |
| void vp9_init_neighbors(); |
| |
| static INLINE const int16_t* get_scan_4x4(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_scan_4x4; |
| case DCT_ADST: |
| return vp9_col_scan_4x4; |
| default: |
| return vp9_default_scan_4x4; |
| } |
| } |
| |
| static INLINE void get_scan_nb_4x4(TX_TYPE tx_type, |
| const int16_t **scan, const int16_t **nb) { |
| switch (tx_type) { |
| case ADST_DCT: |
| *scan = vp9_row_scan_4x4; |
| *nb = vp9_row_scan_4x4_neighbors; |
| break; |
| case DCT_ADST: |
| *scan = vp9_col_scan_4x4; |
| *nb = vp9_col_scan_4x4_neighbors; |
| break; |
| default: |
| *scan = vp9_default_scan_4x4; |
| *nb = vp9_default_scan_4x4_neighbors; |
| break; |
| } |
| } |
| |
| static INLINE const int16_t* get_iscan_4x4(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_iscan_4x4; |
| case DCT_ADST: |
| return vp9_col_iscan_4x4; |
| default: |
| return vp9_default_iscan_4x4; |
| } |
| } |
| |
| static INLINE const int16_t* get_scan_8x8(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_scan_8x8; |
| case DCT_ADST: |
| return vp9_col_scan_8x8; |
| default: |
| return vp9_default_scan_8x8; |
| } |
| } |
| |
| static INLINE void get_scan_nb_8x8(TX_TYPE tx_type, |
| const int16_t **scan, const int16_t **nb) { |
| switch (tx_type) { |
| case ADST_DCT: |
| *scan = vp9_row_scan_8x8; |
| *nb = vp9_row_scan_8x8_neighbors; |
| break; |
| case DCT_ADST: |
| *scan = vp9_col_scan_8x8; |
| *nb = vp9_col_scan_8x8_neighbors; |
| break; |
| default: |
| *scan = vp9_default_scan_8x8; |
| *nb = vp9_default_scan_8x8_neighbors; |
| break; |
| } |
| } |
| |
| static INLINE const int16_t* get_iscan_8x8(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_iscan_8x8; |
| case DCT_ADST: |
| return vp9_col_iscan_8x8; |
| default: |
| return vp9_default_iscan_8x8; |
| } |
| } |
| |
| static INLINE const int16_t* get_scan_16x16(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_scan_16x16; |
| case DCT_ADST: |
| return vp9_col_scan_16x16; |
| default: |
| return vp9_default_scan_16x16; |
| } |
| } |
| |
| static INLINE void get_scan_nb_16x16(TX_TYPE tx_type, |
| const int16_t **scan, const int16_t **nb) { |
| switch (tx_type) { |
| case ADST_DCT: |
| *scan = vp9_row_scan_16x16; |
| *nb = vp9_row_scan_16x16_neighbors; |
| break; |
| case DCT_ADST: |
| *scan = vp9_col_scan_16x16; |
| *nb = vp9_col_scan_16x16_neighbors; |
| break; |
| default: |
| *scan = vp9_default_scan_16x16; |
| *nb = vp9_default_scan_16x16_neighbors; |
| break; |
| } |
| } |
| |
| static INLINE const int16_t* get_iscan_16x16(TX_TYPE tx_type) { |
| switch (tx_type) { |
| case ADST_DCT: |
| return vp9_row_iscan_16x16; |
| case DCT_ADST: |
| return vp9_col_iscan_16x16; |
| default: |
| return vp9_default_iscan_16x16; |
| } |
| } |
| |
| static INLINE int get_coef_context(const int16_t *neighbors, |
| const uint8_t *token_cache, int c) { |
| return (1 + token_cache[neighbors[MAX_NEIGHBORS * c + 0]] + |
| token_cache[neighbors[MAX_NEIGHBORS * c + 1]]) >> 1; |
| } |
| |
| #endif // VP9_COMMON_VP9_SCAN_H_ |