/*
  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
  * Copyright (C) 2005 Nikolaj Poroshin <porosh3@psu.ru>
  * Copyright (c) 2014 Arwa Arif <arwaarif1994@gmail.com>
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 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 General Public License for more details.
  *
  * You should have received a copy of the GNU 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 AVFILTER_FSPP_H
 #define AVFILTER_FSPP_H
 
 #include "avfilter.h"
 
 #define BLOCKSZ 12
 #define MAX_LEVEL 5
 
 #define DCTSIZE 8
 #define DCTSIZE_S "8"
 
 #define FIX(x,s)  ((int) ((x) * (1 << s) + 0.5) & 0xffff)
 #define C64(x)    ((uint64_t)((x) | (x) << 16)) <<32 | (uint64_t)(x) | (uint64_t)(x) << 16
 #define FIX64(x,s)  C64(FIX(x,s))
 
 #define MULTIPLY16H(x,k)   (((x) * (k)) >> 16)
 #define THRESHOLD(r,x,t)                         \
     if(((unsigned)((x) + t)) > t * 2) r = (x);   \
     else r = 0;
 #define DESCALE(x,n)  (((x) + (1 << ((n) - 1))) >> n)
 
 typedef int32_t int_simd16_t;
 static const int16_t FIX_0_382683433   = FIX(0.382683433, 14);
 static const int16_t FIX_0_541196100   = FIX(0.541196100, 14);

 static const int16_t FIX_0_707106781   = FIX(M_SQRT1_2  , 14);

 static const int16_t FIX_1_306562965   = FIX(1.306562965, 14);

 static const int16_t FIX_1_414213562_A = FIX(M_SQRT2    , 14);

 static const int16_t FIX_1_847759065   = FIX(1.847759065, 13);
 static const int16_t FIX_2_613125930   = FIX(-2.613125930, 13);

 static const int16_t FIX_1_414213562   = FIX(M_SQRT2    , 13);

 static const int16_t FIX_1_082392200   = FIX(1.082392200, 13);
 
 typedef struct FSPPContext {
     AVClass *class;
     uint64_t threshold_mtx_noq[8 * 2];
     uint64_t threshold_mtx[8 * 2];        //used in both C & MMX (& later SSE2) versions
 
     int log2_count;
     int strength;
     int hsub;
     int vsub;
     int temp_stride;
     int qp;
     int qscale_type;
     int prev_q;
     uint8_t *src;
     int16_t *temp;
     uint8_t *non_b_qp_table;
     int non_b_qp_alloc_size;
     int use_bframe_qp;
 
     void (*store_slice)(uint8_t *dst, int16_t *src,
                         ptrdiff_t dst_stride, ptrdiff_t src_stride,
                         ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale);
 
     void (*store_slice2)(uint8_t *dst, int16_t *src,
                          ptrdiff_t dst_stride, ptrdiff_t src_stride,
                          ptrdiff_t width, ptrdiff_t height, ptrdiff_t log2_scale);
 

     void (*mul_thrmat)(int16_t *thr_adr_noq, int16_t *thr_adr, int q);

 
     void (*column_fidct)(int16_t *thr_adr, int16_t *data,
                          int16_t *output, int cnt);
 
     void (*row_idct)(int16_t *workspace, int16_t *output_adr,

                      ptrdiff_t output_stride, int cnt);

 
     void (*row_fdct)(int16_t *data, const uint8_t *pixels,

                      ptrdiff_t line_size, int cnt);

 
 } FSPPContext;
 
 void ff_fspp_init_x86(FSPPContext *fspp);
 
 #endif /* AVFILTER_FSPP_H */