/*
 *  Copyright (c) 2010 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_ENCODER_VP9_TOKENIZE_H_
#define VP9_ENCODER_VP9_TOKENIZE_H_

#include "vp9/common/vp9_entropy.h"
#include "vp9/encoder/vp9_block.h"

void vp9_tokenize_initialize();

typedef struct {
  int16_t token;
  int16_t extra;
} TOKENVALUE;

typedef struct {
  const vp9_prob *context_tree;
  int16_t         extra;
  uint8_t         token;
  uint8_t         skip_eob_node;
#if CONFIG_CODE_ZEROGROUP
  uint8_t         skip_coef_val;
#endif
} TOKENEXTRA;

typedef int64_t vp9_coeff_accum[REF_TYPES][COEF_BANDS][PREV_COEF_CONTEXTS]
                               [MAX_ENTROPY_TOKENS + 1];

int vp9_sb_is_skippable(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize);
int vp9_sby_is_skippable(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize);
int vp9_sbuv_is_skippable(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize);
struct VP9_COMP;

void vp9_tokenize_mb(struct VP9_COMP *cpi, MACROBLOCKD *xd,
                     TOKENEXTRA **t, int dry_run);
void vp9_tokenize_sb(struct VP9_COMP *cpi, MACROBLOCKD *xd,
                     TOKENEXTRA **t, int dry_run, BLOCK_SIZE_TYPE bsize);

#ifdef ENTROPY_STATS
void init_context_counters();
void print_context_counters();

extern vp9_coeff_accum context_counters_4x4[BLOCK_TYPES];
extern vp9_coeff_accum context_counters_8x8[BLOCK_TYPES];
extern vp9_coeff_accum context_counters_16x16[BLOCK_TYPES];
extern vp9_coeff_accum context_counters_32x32[BLOCK_TYPES];
#endif

extern const int *vp9_dct_value_cost_ptr;
/* TODO: The Token field should be broken out into a separate char array to
 *  improve cache locality, since it's needed for costing when the rest of the
 *  fields are not.
 */
extern const TOKENVALUE *vp9_dct_value_tokens_ptr;

#endif  // VP9_ENCODER_VP9_TOKENIZE_H_