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  1. /*
  2.  * RV30/40 decoder motion compensation functions
  3.  * Copyright (c) 2008 Konstantin Shishkov
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. /**
  23.  * @file
  24.  * RV30/40 decoder motion compensation functions
  25.  */
  26.  
  27. #ifndef AVCODEC_RV34DSP_H
  28. #define AVCODEC_RV34DSP_H
  29.  
  30. #include "dsputil.h"
  31. #include "h264chroma.h"
  32.  
  33. typedef void (*rv40_weight_func)(uint8_t *dst/*align width (8 or 16)*/,
  34.                                  uint8_t *src1/*align width (8 or 16)*/,
  35.                                  uint8_t *src2/*align width (8 or 16)*/,
  36.                                  int w1, int w2, ptrdiff_t stride);
  37.  
  38. typedef void (*rv34_inv_transform_func)(int16_t *block);
  39.  
  40. typedef void (*rv34_idct_add_func)(uint8_t *dst, ptrdiff_t stride, int16_t *block);
  41. typedef void (*rv34_idct_dc_add_func)(uint8_t *dst, ptrdiff_t stride,
  42.                                       int   dc);
  43.  
  44. typedef void (*rv40_weak_loop_filter_func)(uint8_t *src, ptrdiff_t stride,
  45.                                            int filter_p1, int filter_q1,
  46.                                            int alpha, int beta,
  47.                                            int lims, int lim_q1, int lim_p1);
  48.  
  49. typedef void (*rv40_strong_loop_filter_func)(uint8_t *src, ptrdiff_t stride,
  50.                                              int alpha, int lims,
  51.                                              int dmode, int chroma);
  52.  
  53. typedef int (*rv40_loop_filter_strength_func)(uint8_t *src, ptrdiff_t stride,
  54.                                               int beta, int beta2, int edge,
  55.                                               int *p1, int *q1);
  56.  
  57. typedef struct RV34DSPContext {
  58.     qpel_mc_func put_pixels_tab[4][16];
  59.     qpel_mc_func avg_pixels_tab[4][16];
  60.     h264_chroma_mc_func put_chroma_pixels_tab[3];
  61.     h264_chroma_mc_func avg_chroma_pixels_tab[3];
  62.     /**
  63.      * Biweight functions, first dimension is transform size (16/8),
  64.      * second is whether the weight is prescaled by 1/512 to skip
  65.      * the intermediate shifting.
  66.      */
  67.     rv40_weight_func rv40_weight_pixels_tab[2][2];
  68.     rv34_inv_transform_func rv34_inv_transform;
  69.     rv34_inv_transform_func rv34_inv_transform_dc;
  70.     rv34_idct_add_func rv34_idct_add;
  71.     rv34_idct_dc_add_func rv34_idct_dc_add;
  72.     rv40_weak_loop_filter_func rv40_weak_loop_filter[2];
  73.     rv40_strong_loop_filter_func rv40_strong_loop_filter[2];
  74.     rv40_loop_filter_strength_func rv40_loop_filter_strength[2];
  75. } RV34DSPContext;
  76.  
  77. void ff_rv30dsp_init(RV34DSPContext *c);
  78. void ff_rv34dsp_init(RV34DSPContext *c);
  79. void ff_rv40dsp_init(RV34DSPContext *c);
  80.  
  81. void ff_rv34dsp_init_arm(RV34DSPContext *c);
  82. void ff_rv34dsp_init_x86(RV34DSPContext *c);
  83.  
  84. void ff_rv40dsp_init_x86(RV34DSPContext *c);
  85. void ff_rv40dsp_init_arm(RV34DSPContext *c);
  86.  
  87. #endif /* AVCODEC_RV34DSP_H */
  88.