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  1. /*
  2.  * Copyright (C) 2010 David Conrad
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #ifndef AVCODEC_DIRACDSP_H
  22. #define AVCODEC_DIRACDSP_H
  23.  
  24. #include <stdint.h>
  25.  
  26. typedef void (*dirac_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int h);
  27. typedef void (*dirac_biweight_func)(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, int weightd, int weights, int h);
  28.  
  29. typedef struct {
  30.     void (*dirac_hpel_filter)(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src, int stride, int width, int height);
  31.     /**
  32.      * dirac_pixels_tab[width][subpel]
  33.      * width is 2 for 32, 1 for 16, 0 for 8
  34.      * subpel is 0 for fpel and hpel (only need to copy from the first plane in src)
  35.      *           1 if an average of the first 2 planes is needed (TODO: worth it?)
  36.      *           2 for general qpel (avg of 4)
  37.      *           3 for general epel (biweight of 4 using the weights in src[4])
  38.      * src[0-3] is each of the hpel planes
  39.      * src[4] is the 1/8 pel weights if needed
  40.      */
  41.     void (*put_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
  42.     void (*avg_dirac_pixels_tab[3][4])(uint8_t *dst, const uint8_t *src[5], int stride, int h);
  43.  
  44.     void (*put_signed_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
  45.     void (*put_rect_clamped)(uint8_t *dst/*align 16*/, int dst_stride, const int16_t *src/*align 16*/, int src_stride, int width, int height/*mod 2*/);
  46.     void (*add_rect_clamped)(uint8_t *dst/*align 16*/, const uint16_t *src/*align 16*/, int stride, const int16_t *idwt/*align 16*/, int idwt_stride, int width, int height/*mod 2*/);
  47.     void (*add_dirac_obmc[3])(uint16_t *dst, const uint8_t *src, int stride, const uint8_t *obmc_weight, int yblen);
  48.  
  49.     dirac_weight_func weight_dirac_pixels_tab[3];
  50.     dirac_biweight_func biweight_dirac_pixels_tab[3];
  51. } DiracDSPContext;
  52.  
  53. #define DECL_DIRAC_PIXOP(PFX, EXT)                                      \
  54.     void ff_ ## PFX ## _dirac_pixels8_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
  55.     void ff_ ## PFX ## _dirac_pixels16_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h); \
  56.     void ff_ ## PFX ## _dirac_pixels32_ ## EXT(uint8_t *dst, const uint8_t *src[5], int stride, int h)
  57.  
  58. DECL_DIRAC_PIXOP(put, c);
  59. DECL_DIRAC_PIXOP(avg, c);
  60. DECL_DIRAC_PIXOP(put, l2_c);
  61. DECL_DIRAC_PIXOP(avg, l2_c);
  62. DECL_DIRAC_PIXOP(put, l4_c);
  63. DECL_DIRAC_PIXOP(avg, l4_c);
  64.  
  65. void ff_diracdsp_init(DiracDSPContext *c);
  66.  
  67. #endif /* AVCODEC_DIRACDSP_H */
  68.