chromium/third_party/libaom/source/libaom/av1/common/reconintra.h

/*
 * 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_RECONINTRA_H_
#define AOM_AV1_COMMON_RECONINTRA_H_

#include <stdlib.h>

#include "aom/aom_integer.h"
#include "av1/common/av1_common_int.h"
#include "av1/common/blockd.h"

#ifdef __cplusplus
extern "C" {
#endif

void av1_init_intra_predictors(void);
void av1_predict_intra_block_facade(const AV1_COMMON *cm, MACROBLOCKD *xd,
                                    int plane, int blk_col, int blk_row,
                                    TX_SIZE tx_size);
void av1_predict_intra_block(const MACROBLOCKD *xd, BLOCK_SIZE sb_size,
                             int enable_intra_edge_filter, int wpx, int hpx,
                             TX_SIZE tx_size, PREDICTION_MODE mode,
                             int angle_delta, int use_palette,
                             FILTER_INTRA_MODE filter_intra_mode,
                             const uint8_t *ref, int ref_stride, uint8_t *dst,
                             int dst_stride, int col_off, int row_off,
                             int plane);

// Mapping of interintra to intra mode for use in the intra component
static const PREDICTION_MODE interintra_to_intra_mode[INTERINTRA_MODES] = …;

// Mapping of intra mode to the interintra mode
static const INTERINTRA_MODE intra_to_interintra_mode[INTRA_MODES] = …;

#define FILTER_INTRA_SCALE_BITS …

static inline int av1_is_directional_mode(PREDICTION_MODE mode) { … }

static inline int av1_is_diagonal_mode(PREDICTION_MODE mode) { … }

static inline int av1_use_angle_delta(BLOCK_SIZE bsize) { … }

static inline int av1_allow_intrabc(const AV1_COMMON *const cm) { … }

static inline int av1_filter_intra_allowed_bsize(const AV1_COMMON *const cm,
                                                 BLOCK_SIZE bs) { … }

static inline int av1_filter_intra_allowed(const AV1_COMMON *const cm,
                                           const MB_MODE_INFO *mbmi) { … }

extern const int8_t av1_filter_intra_taps[FILTER_INTRA_MODES][8][8];

static const int16_t dr_intra_derivative[90] = …;

// Get the shift (up-scaled by 256) in X w.r.t a unit change in Y.
// If angle > 0 && angle < 90, dx = -((int)(256 / t));
// If angle > 90 && angle < 180, dx = (int)(256 / t);
// If angle > 180 && angle < 270, dx = 1;
static inline int av1_get_dx(int angle) { … }

// Get the shift (up-scaled by 256) in Y w.r.t a unit change in X.
// If angle > 0 && angle < 90, dy = 1;
// If angle > 90 && angle < 180, dy = (int)(256 * t);
// If angle > 180 && angle < 270, dy = -((int)(256 * t));
static inline int av1_get_dy(int angle) { … }

static inline int av1_use_intra_edge_upsample(int bs0, int bs1, int delta,
                                              int type) { … }
#ifdef __cplusplus
}  // extern "C"
#endif
#endif  // AOM_AV1_COMMON_RECONINTRA_H_