palette.h

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/*
 * 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_ENCODER_PALETTE_H_
#define AOM_AV1_ENCODER_PALETTE_H_
 
#include "av1/common/blockd.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
struct AV1_COMP;
struct PICK_MODE_CONTEXT;
struct macroblock;
 
#define AV1_K_MEANS_RENAME(func, dim) func##_dim##dim
 
void AV1_K_MEANS_RENAME(av1_k_means, 1)(const int16_t *data, int16_t *centroids,
                                        uint8_t *indices, int n, int k,
                                        int max_itr);
void AV1_K_MEANS_RENAME(av1_k_means, 2)(const int16_t *data, int16_t *centroids,
                                        uint8_t *indices, int n, int k,
                                        int max_itr);
static inline void av1_calc_indices(const int16_t *data,
                                    const int16_t *centroids, uint8_t *indices,
                                    int n, int k, int dim) {
  assert(n > 0);
  assert(k > 0);
  if (dim == 1) {
    av1_calc_indices_dim1(data, centroids, indices, /*total_dist=*/NULL, n, k);
  } else if (dim == 2) {
    av1_calc_indices_dim2(data, centroids, indices, /*total_dist=*/NULL, n, k);
  } else {
    assert(0 && "Untemplated k means dimension");
  }
}
 
static inline void av1_k_means(const int16_t *data, int16_t *centroids,
                               uint8_t *indices, int n, int k, int dim,
                               int max_itr) {
  assert(n > 0);
  assert(k > 0);
  if (dim == 1) {
    AV1_K_MEANS_RENAME(av1_k_means, 1)(data, centroids, indices, n, k, max_itr);
  } else if (dim == 2) {
    AV1_K_MEANS_RENAME(av1_k_means, 2)(data, centroids, indices, n, k, max_itr);
  } else {
    assert(0 && "Untemplated k means dimension");
  }
}
 
int av1_remove_duplicates(int16_t *centroids, int num_centroids);
 
int av1_index_color_cache(const uint16_t *color_cache, int n_cache,
                          const uint16_t *colors, int n_colors,
                          uint8_t *cache_color_found, int *out_cache_colors);
 
int av1_get_palette_delta_bits_v(const PALETTE_MODE_INFO *const pmi,
                                 int bit_depth, int *zero_count, int *min_bits);
 
int av1_palette_color_cost_y(const PALETTE_MODE_INFO *const pmi,
                             const uint16_t *color_cache, int n_cache,
                             int bit_depth);
 
int av1_palette_color_cost_uv(const PALETTE_MODE_INFO *const pmi,
                              const uint16_t *color_cache, int n_cache,
                              int bit_depth);
 
void av1_rd_pick_palette_intra_sby(
    const struct AV1_COMP *cpi, struct macroblock *x, BLOCK_SIZE bsize,
    int dc_mode_cost, MB_MODE_INFO *best_mbmi, uint8_t *best_palette_color_map,
    int64_t *best_rd, int *rate, int *rate_tokenonly, int64_t *distortion,
    uint8_t *skippable, int *beat_best_rd, struct PICK_MODE_CONTEXT *ctx,
    uint8_t *best_blk_skip, uint8_t *tx_type_map);
 
void av1_rd_pick_palette_intra_sbuv(const struct AV1_COMP *cpi,
                                    struct macroblock *x, int dc_mode_cost,
                                    uint8_t *best_palette_color_map,
                                    MB_MODE_INFO *const best_mbmi,
                                    int64_t *best_rd, int *rate,
                                    int *rate_tokenonly, int64_t *distortion,
                                    uint8_t *skippable);
 
void av1_restore_uv_color_map(const struct AV1_COMP *cpi, struct macroblock *x);
 
#ifdef __cplusplus
}  // extern "C"
#endif
 
#endif  // AOM_AV1_ENCODER_PALETTE_H_