text: /*
   *  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 __INC_MCOMP_H
  #define __INC_MCOMP_H
  
  #include "block.h"
  #include "vp8/common/variance.h"
  
  #ifdef ENTROPY_STATS
  extern void init_mv_ref_counts();
  extern void accum_mv_refs(MB_PREDICTION_MODE, const int near_mv_ref_cts[4]);
  #endif
  
  
  #define MAX_MVSEARCH_STEPS 8                                    // The maximum number of steps in a step search given the largest allowed initial step
  #define MAX_FULL_PEL_VAL ((1 << (MAX_MVSEARCH_STEPS)) - 1)      // Max full pel mv specified in 1 pel units
  #define MAX_FIRST_STEP (1 << (MAX_MVSEARCH_STEPS-1))            // Maximum size of the first step in full pel units
  
  extern void print_mode_context(void);
  extern int vp8_mv_bit_cost(int_mv *mv, int_mv *ref, int *mvcost[2], int Weight);
  extern void vp8_init_dsmotion_compensation(MACROBLOCK *x, int stride);
  extern void vp8_init3smotion_compensation(MACROBLOCK *x,  int stride);
  
  
  extern int vp8_hex_search
  (
      MACROBLOCK *x,
      BLOCK *b,
      BLOCKD *d,
      int_mv *ref_mv,
      int_mv *best_mv,
      int search_param,
      int error_per_bit,
      const vp8_variance_fn_ptr_t *vf,
      int *mvsadcost[2],
      int *mvcost[2],
      int_mv *center_mv
  );
  
  typedef int (fractional_mv_step_fp)
      (MACROBLOCK *x, BLOCK *b, BLOCKD *d, int_mv *bestmv, int_mv *ref_mv,
       int error_per_bit, const vp8_variance_fn_ptr_t *vfp, int *mvcost[2],
       int *distortion, unsigned int *sse);
  
  extern fractional_mv_step_fp vp8_find_best_sub_pixel_step_iteratively;
  extern fractional_mv_step_fp vp8_find_best_sub_pixel_step;
  extern fractional_mv_step_fp vp8_find_best_half_pixel_step;
  extern fractional_mv_step_fp vp8_skip_fractional_mv_step;
  
  typedef int (*vp8_full_search_fn_t)
      (
       MACROBLOCK *x,
       BLOCK *b,
       BLOCKD *d,
       int_mv *ref_mv,
       int sad_per_bit,
       int distance,
       vp8_variance_fn_ptr_t *fn_ptr,
       int *mvcost[2],
       int_mv *center_mv
      );
  
  typedef int (*vp8_refining_search_fn_t)
      (
       MACROBLOCK *x,
       BLOCK *b,
       BLOCKD *d,
       int_mv *ref_mv,
       int sad_per_bit,
       int distance,
       vp8_variance_fn_ptr_t *fn_ptr,
       int *mvcost[2],
       int_mv *center_mv
      );
  
  typedef int (*vp8_diamond_search_fn_t)
      (
       MACROBLOCK *x,
       BLOCK *b,
       BLOCKD *d,
       int_mv *ref_mv,
       int_mv *best_mv,
       int search_param,
       int sad_per_bit,
       int *num00,
       vp8_variance_fn_ptr_t *fn_ptr,
       int *mvcost[2],
       int_mv *center_mv
      );
  
  #endif
  