/*

  * HEVC video decoder

  *
  * Copyright (C) 2012 - 2013 Guillaume Martres

  * Copyright (C) 2013 - 2014 Pierre-Edouard Lepere
  *

  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVCODEC_HEVCDSP_H
 #define AVCODEC_HEVCDSP_H
 
 #include "get_bits.h"
 

 #define MAX_PB_SIZE 64
 

 typedef struct SAOParams {
     int offset_abs[3][4];   ///< sao_offset_abs
     int offset_sign[3][4];  ///< sao_offset_sign

     uint8_t band_position[3];   ///< sao_band_position

     int eo_class[3];        ///< sao_eo_class

     int16_t offset_val[3][5];   ///<SaoOffsetVal

     uint8_t type_idx[3];    ///< sao_type_idx
 } SAOParams;

 typedef struct HEVCDSPContext {

     void (*put_pcm)(uint8_t *_dst, ptrdiff_t _stride, int width, int height,
                     struct GetBitContext *gb, int pcm_bit_depth);

     void (*add_residual[4])(uint8_t *dst, int16_t *res, ptrdiff_t stride);

     void (*dequant)(int16_t *coeffs, int16_t log2_size);

     void (*transform_rdpcm)(int16_t *coeffs, int16_t log2_size, int mode);
 

     void (*transform_4x4_luma)(int16_t *coeffs);

 
     void (*idct[4])(int16_t *coeffs, int col_limit);
 
     void (*idct_dc[4])(int16_t *coeffs);

     void (*sao_band_filter[5])(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src,
                                int16_t *sao_offset_val, int sao_left_class, int width, int height);

     /* implicit stride_src parameter has value of 2 * MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE */

     void (*sao_edge_filter[5])(uint8_t *_dst /* align 16 */, uint8_t *_src /* align 32 */, ptrdiff_t stride_dst,
                                int16_t *sao_offset_val, int sao_eo_class, int width, int height);

 
     void (*sao_edge_restore[2])(uint8_t *_dst, uint8_t *_src, ptrdiff_t _stride_dst, ptrdiff_t _stride_src,
                                 struct SAOParams *sao, int *borders, int _width, int _height, int c_idx,
                                 uint8_t *vert_edge, uint8_t *horiz_edge, uint8_t *diag_edge);

     void (*put_hevc_qpel[10][2][2])(int16_t *dst, uint8_t *src, ptrdiff_t srcstride,

                                     int height, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_qpel_uni[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
                                         int height, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_qpel_uni_w[10][2][2])(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride,
                                           int height, int denom, int wx, int ox, intptr_t mx, intptr_t my, int width);
 
     void (*put_hevc_qpel_bi[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,

                                        int16_t *src2,

                                        int height, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_qpel_bi_w[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,

                                          int16_t *src2,

                                          int height, int denom, int wx0, int wx1,
                                          int ox0, int ox1, intptr_t mx, intptr_t my, int width);

     void (*put_hevc_epel[10][2][2])(int16_t *dst, uint8_t *src, ptrdiff_t srcstride,

                                     int height, intptr_t mx, intptr_t my, int width);
 
     void (*put_hevc_epel_uni[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,
                                         int height, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_epel_uni_w[10][2][2])(uint8_t *_dst, ptrdiff_t _dststride, uint8_t *_src, ptrdiff_t _srcstride,
                                           int height, int denom, int wx, int ox, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_epel_bi[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,

                                        int16_t *src2,

                                        int height, intptr_t mx, intptr_t my, int width);
     void (*put_hevc_epel_bi_w[10][2][2])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,

                                          int16_t *src2,

                                          int height, int denom, int wx0, int ox0, int wx1,
                                          int ox1, intptr_t mx, intptr_t my, int width);

 
     void (*hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,

                                     int beta, int32_t *tc,

                                     uint8_t *no_p, uint8_t *no_q);
     void (*hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,

                                     int beta, int32_t *tc,

                                     uint8_t *no_p, uint8_t *no_q);
     void (*hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,

                                       int32_t *tc, uint8_t *no_p, uint8_t *no_q);

     void (*hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,

                                       int32_t *tc, uint8_t *no_p, uint8_t *no_q);

     void (*hevc_h_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,

                                       int beta, int32_t *tc,

                                       uint8_t *no_p, uint8_t *no_q);
     void (*hevc_v_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,

                                       int beta, int32_t *tc,

                                       uint8_t *no_p, uint8_t *no_q);
     void (*hevc_h_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,

                                         int32_t *tc, uint8_t *no_p,

                                         uint8_t *no_q);
     void (*hevc_v_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,

                                         int32_t *tc, uint8_t *no_p,

                                         uint8_t *no_q);

 } HEVCDSPContext;
 
 void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
 

 extern const int8_t ff_hevc_epel_filters[7][4];
 extern const int8_t ff_hevc_qpel_filters[3][16];
 

 void ff_hevc_dsp_init_arm(HEVCDSPContext *c, const int bit_depth);

 void ff_hevc_dsp_init_ppc(HEVCDSPContext *c, const int bit_depth);

 void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);

 void ff_hevc_dsp_init_mips(HEVCDSPContext *c, const int bit_depth);

 #endif /* AVCODEC_HEVCDSP_H */