| /* |
| * 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); |
| #if CONFIG_ORIP |
| void av1_predict_intra_block( |
| const AV1_COMMON *cm, const MACROBLOCKD *xd, 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, |
| const int disable_intra_pred_filter_for_hor_ver_mode); |
| #else |
| void av1_predict_intra_block( |
| const AV1_COMMON *cm, const MACROBLOCKD *xd, 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); |
| #endif |
| |
| #if CONFIG_ORIP |
| void av1_apply_orip_4x4subblock_hbd(uint16_t *dst, ptrdiff_t stride, |
| TX_SIZE tx_size, const uint16_t *above, |
| const uint16_t *left, PREDICTION_MODE mode, |
| int bd); |
| void av1_apply_orip_4x4subblock(uint8_t *dst, ptrdiff_t stride, TX_SIZE tx_size, |
| const uint8_t *above, const uint8_t *left, |
| PREDICTION_MODE mode); |
| #endif |
| |
| // Mapping of interintra to intra mode for use in the intra component |
| static const PREDICTION_MODE interintra_to_intra_mode[INTERINTRA_MODES] = { |
| DC_PRED, V_PRED, H_PRED, SMOOTH_PRED |
| }; |
| |
| // Mapping of intra mode to the interintra mode |
| static const INTERINTRA_MODE intra_to_interintra_mode[INTRA_MODES] = { |
| II_DC_PRED, II_V_PRED, II_H_PRED, II_V_PRED, II_SMOOTH_PRED, II_V_PRED, |
| II_H_PRED, II_H_PRED, II_V_PRED, II_SMOOTH_PRED, II_SMOOTH_PRED |
| }; |
| |
| #define FILTER_INTRA_SCALE_BITS 4 |
| |
| static INLINE int av1_is_directional_mode(PREDICTION_MODE mode) { |
| return mode >= V_PRED && mode <= D67_PRED; |
| } |
| |
| static INLINE int av1_use_angle_delta(BLOCK_SIZE bsize) { |
| return bsize >= BLOCK_8X8; |
| } |
| |
| static INLINE int av1_allow_intrabc(const AV1_COMMON *const cm) { |
| return frame_is_intra_only(cm) && cm->features.allow_screen_content_tools && |
| cm->features.allow_intrabc; |
| } |
| |
| static INLINE int av1_filter_intra_allowed_bsize(const AV1_COMMON *const cm, |
| BLOCK_SIZE bs) { |
| if (!cm->seq_params.enable_filter_intra || bs == BLOCK_INVALID) return 0; |
| |
| return block_size_wide[bs] <= 32 && block_size_high[bs] <= 32; |
| } |
| |
| static INLINE int av1_filter_intra_allowed(const AV1_COMMON *const cm, |
| const MB_MODE_INFO *mbmi) { |
| #if CONFIG_SDP |
| return mbmi->mode == DC_PRED && |
| #if CONFIG_MRLS |
| mbmi->mrl_index == 0 && |
| #endif |
| mbmi->palette_mode_info.palette_size[0] == 0 && |
| av1_filter_intra_allowed_bsize(cm, mbmi->sb_type[PLANE_TYPE_Y]); |
| #else |
| return mbmi->mode == DC_PRED && |
| #if CONFIG_MRLS |
| mbmi->mrl_index == 0 && |
| #endif |
| mbmi->palette_mode_info.palette_size[0] == 0 && |
| av1_filter_intra_allowed_bsize(cm, mbmi->sb_type); |
| #endif |
| } |
| |
| #if CONFIG_ORIP |
| static INLINE int av1_allow_orip_smooth_dc(PREDICTION_MODE mode, int plane) { |
| if (plane == AOM_PLANE_Y) return (mode == SMOOTH_PRED || mode == DC_PRED); |
| return (mode == UV_SMOOTH_PRED); |
| } |
| static INLINE int av1_allow_orip_dir(int p_angle, int disable_filter) { |
| return (!disable_filter && (p_angle == 90 || p_angle == 180)); |
| } |
| #endif |
| |
| extern const int8_t av1_filter_intra_taps[FILTER_INTRA_MODES][8][8]; |
| |
| static const int16_t dr_intra_derivative[90] = { |
| // More evenly spread out angles and limited to 10-bit |
| // Values that are 0 will never be used |
| // Approx angle |
| 0, 0, 0, // |
| 1023, 0, 0, // 3, ... |
| 547, 0, 0, // 6, ... |
| 372, 0, 0, 0, 0, // 9, ... |
| 273, 0, 0, // 14, ... |
| 215, 0, 0, // 17, ... |
| 178, 0, 0, // 20, ... |
| 151, 0, 0, // 23, ... (113 & 203 are base angles) |
| 132, 0, 0, // 26, ... |
| 116, 0, 0, // 29, ... |
| 102, 0, 0, 0, // 32, ... |
| 90, 0, 0, // 36, ... |
| 80, 0, 0, // 39, ... |
| 71, 0, 0, // 42, ... |
| 64, 0, 0, // 45, ... (45 & 135 are base angles) |
| 57, 0, 0, // 48, ... |
| 51, 0, 0, // 51, ... |
| 45, 0, 0, 0, // 54, ... |
| 40, 0, 0, // 58, ... |
| 35, 0, 0, // 61, ... |
| 31, 0, 0, // 64, ... |
| 27, 0, 0, // 67, ... (67 & 157 are base angles) |
| 23, 0, 0, // 70, ... |
| 19, 0, 0, // 73, ... |
| 15, 0, 0, 0, 0, // 76, ... |
| 11, 0, 0, // 81, ... |
| 7, 0, 0, // 84, ... |
| 3, 0, 0, // 87, ... |
| }; |
| |
| // 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) { |
| if (angle > 0 && angle < 90) { |
| return dr_intra_derivative[angle]; |
| } else if (angle > 90 && angle < 180) { |
| return dr_intra_derivative[180 - angle]; |
| } else { |
| // In this case, we are not really going to use dx. We may return any value. |
| return 1; |
| } |
| } |
| |
| // 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) { |
| if (angle > 90 && angle < 180) { |
| return dr_intra_derivative[angle - 90]; |
| } else if (angle > 180 && angle < 270) { |
| return dr_intra_derivative[270 - angle]; |
| } else { |
| // In this case, we are not really going to use dy. We may return any value. |
| return 1; |
| } |
| } |
| |
| static INLINE int av1_use_intra_edge_upsample(int bs0, int bs1, int delta, |
| int type) { |
| const int d = abs(delta); |
| const int blk_wh = bs0 + bs1; |
| if (d == 0 || d >= 40) return 0; |
| return type ? (blk_wh <= 8) : (blk_wh <= 16); |
| } |
| |
| #if CONFIG_ORIP |
| // This function returns if enable/disable ORIP is signalled in the bitstream |
| // 1 means signal; 0 means does not signal |
| static INLINE int av1_signal_orip_for_horver_modes(const AV1_COMMON *cm, |
| const MB_MODE_INFO *mbmi, |
| PLANE_TYPE plane, |
| BLOCK_SIZE bsize) { |
| if (!cm->seq_params.enable_orip) return 0; |
| |
| #if CONFIG_SDP |
| const int use_intrabc = mbmi->use_intrabc[PLANE_TYPE_Y]; |
| const int is_inter = is_inter_block(mbmi, SHARED_PART); |
| #else |
| const int use_intrabc = mbmi->use_intrabc; |
| const int is_inter = is_inter_block(mbmi); |
| #endif |
| |
| if (plane != PLANE_TYPE_Y || is_inter || use_intrabc) return 0; |
| if (!av1_use_angle_delta(bsize)) return 0; |
| |
| #if CONFIG_MRLS |
| if (mbmi->mrl_index) return 0; |
| #endif |
| |
| if (mbmi->mode == V_PRED || mbmi->mode == H_PRED) return 1; |
| return 0; |
| } |
| |
| static INLINE int get_angle_delta_to_idx(int angle_delta) { |
| return (MAX_ANGLE_DELTA + angle_delta); |
| } |
| |
| static INLINE int get_idx_to_angle_delta(int index) { |
| return (index - MAX_ANGLE_DELTA); |
| } |
| |
| #endif |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| #endif // AOM_AV1_COMMON_RECONINTRA_H_ |
