libavcodec/hpel_template.c

   1 /*
   2  * Copyright (c) 2000, 2001 Fabrice Bellard
   3  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #define DEF_HPEL(OPNAME, OP) \
  23 static inline void FUNCC(OPNAME ## _pixels2)(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
  24     int i;\
  25     for(i=0; i<h; i++){\
  26         OP(*((pixel2*)(block  )), AV_RN2P(pixels  ));\
  27         pixels+=line_size;\
  28         block +=line_size;\
  29     }\
  30 }\
  31 static inline void FUNCC(OPNAME ## _pixels4)(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
  32     int i;\
  33     for(i=0; i<h; i++){\
  34         OP(*((pixel4*)(block  )), AV_RN4P(pixels  ));\
  35         pixels+=line_size;\
  36         block +=line_size;\
  37     }\
  38 }\
  39 static inline void FUNCC(OPNAME ## _pixels8)(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
  40     int i;\
  41     for(i=0; i<h; i++){\
  42         OP(*((pixel4*)(block                )), AV_RN4P(pixels                ));\
  43         OP(*((pixel4*)(block+4*sizeof(pixel))), AV_RN4P(pixels+4*sizeof(pixel)));\
  44         pixels+=line_size;\
  45         block +=line_size;\
  46     }\
  47 }\
  48 \
  49 static inline void FUNC(OPNAME ## _pixels8_l2)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int dst_stride, \
  50                                                 int src_stride1, int src_stride2, int h){\
  51     int i;\
  52     for(i=0; i<h; i++){\
  53         pixel4 a,b;\
  54         a= AV_RN4P(&src1[i*src_stride1  ]);\
  55         b= AV_RN4P(&src2[i*src_stride2  ]);\
  56         OP(*((pixel4*)&dst[i*dst_stride  ]), rnd_avg_pixel4(a, b));\
  57         a= AV_RN4P(&src1[i*src_stride1+4*sizeof(pixel)]);\
  58         b= AV_RN4P(&src2[i*src_stride2+4*sizeof(pixel)]);\
  59         OP(*((pixel4*)&dst[i*dst_stride+4*sizeof(pixel)]), rnd_avg_pixel4(a, b));\
  60     }\
  61 }\
  62 \
  63 static inline void FUNC(OPNAME ## _pixels4_l2)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int dst_stride, \
  64                                                 int src_stride1, int src_stride2, int h){\
  65     int i;\
  66     for(i=0; i<h; i++){\
  67         pixel4 a,b;\
  68         a= AV_RN4P(&src1[i*src_stride1  ]);\
  69         b= AV_RN4P(&src2[i*src_stride2  ]);\
  70         OP(*((pixel4*)&dst[i*dst_stride  ]), rnd_avg_pixel4(a, b));\
  71     }\
  72 }\
  73 \
  74 static inline void FUNC(OPNAME ## _pixels2_l2)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int dst_stride, \
  75                                                 int src_stride1, int src_stride2, int h){\
  76     int i;\
  77     for(i=0; i<h; i++){\
  78         pixel4 a,b;\
  79         a= AV_RN2P(&src1[i*src_stride1  ]);\
  80         b= AV_RN2P(&src2[i*src_stride2  ]);\
  81         OP(*((pixel2*)&dst[i*dst_stride  ]), rnd_avg_pixel4(a, b));\
  82     }\
  83 }\
  84 \
  85 static inline void FUNC(OPNAME ## _pixels16_l2)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int dst_stride, \
  86                                                 int src_stride1, int src_stride2, int h){\
  87     FUNC(OPNAME ## _pixels8_l2)(dst  , src1  , src2  , dst_stride, src_stride1, src_stride2, h);\
  88     FUNC(OPNAME ## _pixels8_l2)(dst+8*sizeof(pixel), src1+8*sizeof(pixel), src2+8*sizeof(pixel), dst_stride, src_stride1, src_stride2, h);\
  89 }\
  90 \
  91 CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16)    , FUNCC(OPNAME ## _pixels8)    , 8*sizeof(pixel))
  92
  93
  94 #define op_avg(a, b) a = rnd_avg_pixel4(a, b)
  95 #define op_put(a, b) a = b
  96
  97 DEF_HPEL(avg, op_avg)
  98 DEF_HPEL(put, op_put)
  99 #undef op_avg
 100 #undef op_put