/*
 *  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 VP8_ENCODER_RDOPT_H_
#define VP8_ENCODER_RDOPT_H_

#ifdef __cplusplus
extern "C" {
#endif

#define RDCOST(RM,DM,R,D) ( ((128+(R)*(RM)) >> 8) + (DM)*(D) )

static void insertsortmv(int arr[], int len)
{
    int i, j, k;

    for ( i = 1 ; i <= len-1 ; i++ )
    {
        for ( j = 0 ; j < i ; j++ )
        {
            if ( arr[j] > arr[i] )
            {
                int temp;

                temp = arr[i];

                for ( k = i; k >j; k--)
                    arr[k] = arr[k - 1] ;

                arr[j] = temp ;
            }
        }
    }
}

static void insertsortsad(int arr[],int idx[], int len)
{
    int i, j, k;

    for ( i = 1 ; i <= len-1 ; i++ )
    {
        for ( j = 0 ; j < i ; j++ )
        {
            if ( arr[j] > arr[i] )
            {
                int temp, tempi;

                temp = arr[i];
                tempi = idx[i];

                for ( k = i; k >j; k--)
                {
                    arr[k] = arr[k - 1] ;
                    idx[k] = idx[k - 1];
                }

                arr[j] = temp ;
                idx[j] = tempi;
            }
        }
    }
}

extern void vp8_initialize_rd_consts(VP8_COMP *cpi, MACROBLOCK *x, int Qvalue);
extern void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion, int *returnintra);
extern void vp8_rd_pick_intra_mode(MACROBLOCK *x, int *rate);


static void get_plane_pointers(const YV12_BUFFER_CONFIG *fb,
                               unsigned char            *plane[3],
                               unsigned int              recon_yoffset,
                               unsigned int              recon_uvoffset)
{
    plane[0] = fb->y_buffer + recon_yoffset;
    plane[1] = fb->u_buffer + recon_uvoffset;
    plane[2] = fb->v_buffer + recon_uvoffset;
}


static void get_predictor_pointers(const VP8_COMP *cpi,
                                       unsigned char  *plane[4][3],
                                       unsigned int    recon_yoffset,
                                       unsigned int    recon_uvoffset)
{
    if (cpi->ref_frame_flags & VP8_LAST_FRAME)
        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.lst_fb_idx],
                           plane[LAST_FRAME], recon_yoffset, recon_uvoffset);

    if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.gld_fb_idx],
                           plane[GOLDEN_FRAME], recon_yoffset, recon_uvoffset);

    if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
        get_plane_pointers(&cpi->common.yv12_fb[cpi->common.alt_fb_idx],
                           plane[ALTREF_FRAME], recon_yoffset, recon_uvoffset);
}


static void get_reference_search_order(const VP8_COMP *cpi,
                                           int             ref_frame_map[4])
{
    int i=0;

    ref_frame_map[i++] = INTRA_FRAME;
    if (cpi->ref_frame_flags & VP8_LAST_FRAME)
        ref_frame_map[i++] = LAST_FRAME;
    if (cpi->ref_frame_flags & VP8_GOLD_FRAME)
        ref_frame_map[i++] = GOLDEN_FRAME;
    if (cpi->ref_frame_flags & VP8_ALTR_FRAME)
        ref_frame_map[i++] = ALTREF_FRAME;
    for(; i<4; i++)
        ref_frame_map[i] = -1;
}


extern void vp8_mv_pred
(
    VP8_COMP *cpi,
    MACROBLOCKD *xd,
    const MODE_INFO *here,
    int_mv *mvp,
    int refframe,
    int *ref_frame_sign_bias,
    int *sr,
    int near_sadidx[]
);
void vp8_cal_sad(VP8_COMP *cpi, MACROBLOCKD *xd, MACROBLOCK *x, int recon_yoffset, int near_sadidx[]);

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VP8_ENCODER_RDOPT_H_