/*

  * Copyright (C) 2010 David Conrad
  * Copyright (C) 2010 Ronald S. Bultje
  *
  * 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
  */
 

 /**
  * @file
  * VP8 compatible video decoder
  */

 
 #ifndef AVCODEC_VP8DSP_H
 #define AVCODEC_VP8DSP_H
 

 #include <stddef.h>
 #include <stdint.h>

 typedef void (*vp8_mc_func)(uint8_t *dst /* align 8 */, ptrdiff_t dstStride,
                             uint8_t *src /* align 1 */, ptrdiff_t srcStride,

                             int h, int x, int y);

 typedef struct VP8DSPContext {

     void (*vp8_luma_dc_wht)(int16_t block[4][4][16], int16_t dc[16]);
     void (*vp8_luma_dc_wht_dc)(int16_t block[4][4][16], int16_t dc[16]);
     void (*vp8_idct_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
     void (*vp8_idct_dc_add)(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
     void (*vp8_idct_dc_add4y)(uint8_t *dst, int16_t block[4][16],

                               ptrdiff_t stride);

     void (*vp8_idct_dc_add4uv)(uint8_t *dst, int16_t block[4][16],

                                ptrdiff_t stride);

 
     // loop filter applied to edges between macroblocks

     void (*vp8_v_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,

                                  int flim_E, int flim_I, int hev_thresh);

     void (*vp8_h_loop_filter16y)(uint8_t *dst, ptrdiff_t stride,

                                  int flim_E, int flim_I, int hev_thresh);

     void (*vp8_v_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,

                                  int flim_E, int flim_I, int hev_thresh);

     void (*vp8_h_loop_filter8uv)(uint8_t *dstU, uint8_t *dstV, ptrdiff_t stride,

                                  int flim_E, int flim_I, int hev_thresh);

 
     // loop filter applied to inner macroblock edges

     void (*vp8_v_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,

                                        int flim_E, int flim_I, int hev_thresh);

     void (*vp8_h_loop_filter16y_inner)(uint8_t *dst, ptrdiff_t stride,

                                        int flim_E, int flim_I, int hev_thresh);

     void (*vp8_v_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
                                        ptrdiff_t stride,

                                        int flim_E, int flim_I, int hev_thresh);

     void (*vp8_h_loop_filter8uv_inner)(uint8_t *dstU, uint8_t *dstV,
                                        ptrdiff_t stride,

                                        int flim_E, int flim_I, int hev_thresh);

     void (*vp8_v_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);
     void (*vp8_h_loop_filter_simple)(uint8_t *dst, ptrdiff_t stride, int flim);

 
     /**
      * first dimension: width>>3, height is assumed equal to width
      * second dimension: 0 if no vertical interpolation is needed;
      *                   1 4-tap vertical interpolation filter (my & 1)
      *                   2 6-tap vertical interpolation filter (!(my & 1))

      * third dimension: same as second dimension, for horizontal interpolation

      * so something like put_vp8_epel_pixels_tab[width>>3][2*!!my-(my&1)][2*!!mx-(mx&1)](..., mx, my)
      */

     vp8_mc_func put_vp8_epel_pixels_tab[3][3][3];

     vp8_mc_func put_vp8_bilinear_pixels_tab[3][3][3];

 } VP8DSPContext;
 

 void ff_put_vp8_pixels16_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
                            int h, int x, int y);
 void ff_put_vp8_pixels8_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
                           int h, int x, int y);
 void ff_put_vp8_pixels4_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
                           int h, int x, int y);

 void ff_vp7dsp_init(VP8DSPContext *c);
 
 void ff_vp78dsp_init(VP8DSPContext *c);
 void ff_vp78dsp_init_arm(VP8DSPContext *c);
 void ff_vp78dsp_init_ppc(VP8DSPContext *c);
 void ff_vp78dsp_init_x86(VP8DSPContext *c);
 

 void ff_vp8dsp_init(VP8DSPContext *c);

 void ff_vp8dsp_init_arm(VP8DSPContext *c);

 void ff_vp8dsp_init_x86(VP8DSPContext *c);

 void ff_vp8dsp_init_mips(VP8DSPContext *c);

 
 #define IS_VP7 1
 #define IS_VP8 0

 
 #endif /* AVCODEC_VP8DSP_H */