208 lines
6.3 KiB
C
208 lines
6.3 KiB
C
/*
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* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VP9_COMMON_VP9_SCAN_H_
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#define VP9_COMMON_VP9_SCAN_H_
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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#include "vp9/common/vp9_enums.h"
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#include "vp9/common/vp9_blockd.h"
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#define MAX_NEIGHBORS 2
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extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_4x4[16]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_4x4[16]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_4x4[16]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_8x8[64]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_8x8[64]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_8x8[64]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_16x16[256]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_col_scan_16x16[256]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_row_scan_16x16[256]);
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extern DECLARE_ALIGNED(16, const int16_t, vp9_default_scan_32x32[1024]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_4x4[16]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_4x4[16]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_4x4[16]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_8x8[64]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_8x8[64]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_8x8[64]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_16x16[256]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_col_iscan_16x16[256]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_row_iscan_16x16[256]);
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extern DECLARE_ALIGNED(16, int16_t, vp9_default_iscan_32x32[1024]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_default_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_col_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_row_scan_4x4_neighbors[17 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_col_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_row_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_default_scan_8x8_neighbors[65 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_col_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_row_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_default_scan_16x16_neighbors[257 * MAX_NEIGHBORS]);
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extern DECLARE_ALIGNED(16, int16_t,
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vp9_default_scan_32x32_neighbors[1025 * MAX_NEIGHBORS]);
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void vp9_init_neighbors();
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typedef struct {
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const int16_t *scan;
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const int16_t *neighbors;
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} scan_order;
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extern const scan_order intra_scan_orders[TX_SIZES][INTRA_MODES];
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extern const scan_order inter_scan_orders[TX_SIZES];
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static INLINE const int16_t* get_scan_4x4(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_scan_4x4;
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case DCT_ADST:
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return vp9_col_scan_4x4;
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default:
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return vp9_default_scan_4x4;
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}
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}
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static INLINE void get_scan_nb_4x4(TX_TYPE tx_type,
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const int16_t **scan, const int16_t **nb) {
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switch (tx_type) {
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case ADST_DCT:
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*scan = vp9_row_scan_4x4;
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*nb = vp9_row_scan_4x4_neighbors;
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break;
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case DCT_ADST:
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*scan = vp9_col_scan_4x4;
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*nb = vp9_col_scan_4x4_neighbors;
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break;
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default:
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*scan = vp9_default_scan_4x4;
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*nb = vp9_default_scan_4x4_neighbors;
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break;
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}
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}
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static INLINE const int16_t* get_iscan_4x4(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_iscan_4x4;
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case DCT_ADST:
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return vp9_col_iscan_4x4;
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default:
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return vp9_default_iscan_4x4;
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}
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}
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static INLINE const int16_t* get_scan_8x8(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_scan_8x8;
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case DCT_ADST:
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return vp9_col_scan_8x8;
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default:
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return vp9_default_scan_8x8;
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}
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}
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static INLINE void get_scan_nb_8x8(TX_TYPE tx_type,
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const int16_t **scan, const int16_t **nb) {
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switch (tx_type) {
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case ADST_DCT:
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*scan = vp9_row_scan_8x8;
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*nb = vp9_row_scan_8x8_neighbors;
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break;
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case DCT_ADST:
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*scan = vp9_col_scan_8x8;
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*nb = vp9_col_scan_8x8_neighbors;
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break;
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default:
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*scan = vp9_default_scan_8x8;
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*nb = vp9_default_scan_8x8_neighbors;
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break;
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}
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}
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static INLINE const int16_t* get_iscan_8x8(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_iscan_8x8;
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case DCT_ADST:
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return vp9_col_iscan_8x8;
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default:
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return vp9_default_iscan_8x8;
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}
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}
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static INLINE const int16_t* get_scan_16x16(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_scan_16x16;
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case DCT_ADST:
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return vp9_col_scan_16x16;
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default:
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return vp9_default_scan_16x16;
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}
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}
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static INLINE void get_scan_nb_16x16(TX_TYPE tx_type,
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const int16_t **scan, const int16_t **nb) {
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switch (tx_type) {
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case ADST_DCT:
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*scan = vp9_row_scan_16x16;
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*nb = vp9_row_scan_16x16_neighbors;
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break;
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case DCT_ADST:
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*scan = vp9_col_scan_16x16;
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*nb = vp9_col_scan_16x16_neighbors;
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break;
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default:
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*scan = vp9_default_scan_16x16;
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*nb = vp9_default_scan_16x16_neighbors;
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break;
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}
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}
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static INLINE const int16_t* get_iscan_16x16(TX_TYPE tx_type) {
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switch (tx_type) {
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case ADST_DCT:
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return vp9_row_iscan_16x16;
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case DCT_ADST:
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return vp9_col_iscan_16x16;
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default:
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return vp9_default_iscan_16x16;
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}
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}
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static INLINE int get_coef_context(const int16_t *neighbors,
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const uint8_t *token_cache, int c) {
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return (1 + token_cache[neighbors[MAX_NEIGHBORS * c + 0]] +
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token_cache[neighbors[MAX_NEIGHBORS * c + 1]]) >> 1;
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}
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#endif // VP9_COMMON_VP9_SCAN_H_
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