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  1. /*
  2.  * Half-pel DSP functions.
  3.  * Copyright (c) 2000, 2001 Fabrice Bellard
  4.  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  5.  *
  6.  * gmc & q-pel & 32/64 bit based MC by Michael Niedermayer <michaelni@gmx.at>
  7.  *
  8.  * This file is part of FFmpeg.
  9.  *
  10.  * FFmpeg is free software; you can redistribute it and/or
  11.  * modify it under the terms of the GNU Lesser General Public
  12.  * License as published by the Free Software Foundation; either
  13.  * version 2.1 of the License, or (at your option) any later version.
  14.  *
  15.  * FFmpeg is distributed in the hope that it will be useful,
  16.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18.  * Lesser General Public License for more details.
  19.  *
  20.  * You should have received a copy of the GNU Lesser General Public
  21.  * License along with FFmpeg; if not, write to the Free Software
  22.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23.  */
  24.  
  25. /**
  26.  * @file
  27.  * Half-pel DSP functions.
  28.  */
  29.  
  30. #include "bit_depth_template.c"
  31.  
  32. #include "hpel_template.c"
  33.  
  34. #define PIXOP2(OPNAME, OP) \
  35. static inline void FUNC(OPNAME ## _no_rnd_pixels8_l2)(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int dst_stride, \
  36.                                                 int src_stride1, int src_stride2, int h){\
  37.     int i;\
  38.     for(i=0; i<h; i++){\
  39.         pixel4 a,b;\
  40.         a= AV_RN4P(&src1[i*src_stride1  ]);\
  41.         b= AV_RN4P(&src2[i*src_stride2  ]);\
  42.         OP(*((pixel4*)&dst[i*dst_stride  ]), no_rnd_avg_pixel4(a, b));\
  43.         a= AV_RN4P(&src1[i*src_stride1+4*sizeof(pixel)]);\
  44.         b= AV_RN4P(&src2[i*src_stride2+4*sizeof(pixel)]);\
  45.         OP(*((pixel4*)&dst[i*dst_stride+4*sizeof(pixel)]), no_rnd_avg_pixel4(a, b));\
  46.     }\
  47. }\
  48. \
  49. static inline void FUNCC(OPNAME ## _no_rnd_pixels8_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  50.     FUNC(OPNAME ## _no_rnd_pixels8_l2)(block, pixels, pixels+sizeof(pixel), line_size, line_size, line_size, h);\
  51. }\
  52. \
  53. static inline void FUNCC(OPNAME ## _pixels8_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  54.     FUNC(OPNAME ## _pixels8_l2)(block, pixels, pixels+sizeof(pixel), line_size, line_size, line_size, h);\
  55. }\
  56. \
  57. static inline void FUNCC(OPNAME ## _no_rnd_pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  58.     FUNC(OPNAME ## _no_rnd_pixels8_l2)(block, pixels, pixels+line_size, line_size, line_size, line_size, h);\
  59. }\
  60. \
  61. static inline void FUNCC(OPNAME ## _pixels8_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  62.     FUNC(OPNAME ## _pixels8_l2)(block, pixels, pixels+line_size, line_size, line_size, line_size, h);\
  63. }\
  64. \
  65. static inline void FUNCC(OPNAME ## _pixels4_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  66.     FUNC(OPNAME ## _pixels4_l2)(block, pixels, pixels+sizeof(pixel), line_size, line_size, line_size, h);\
  67. }\
  68. \
  69. static inline void FUNCC(OPNAME ## _pixels4_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  70.     FUNC(OPNAME ## _pixels4_l2)(block, pixels, pixels+line_size, line_size, line_size, line_size, h);\
  71. }\
  72. \
  73. static inline void FUNCC(OPNAME ## _pixels2_x2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  74.     FUNC(OPNAME ## _pixels2_l2)(block, pixels, pixels+sizeof(pixel), line_size, line_size, line_size, h);\
  75. }\
  76. \
  77. static inline void FUNCC(OPNAME ## _pixels2_y2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h){\
  78.     FUNC(OPNAME ## _pixels2_l2)(block, pixels, pixels+line_size, line_size, line_size, line_size, h);\
  79. }\
  80. \
  81. static inline void FUNCC(OPNAME ## _pixels2_xy2)(uint8_t *_block, const uint8_t *_pixels, ptrdiff_t line_size, int h)\
  82. {\
  83.         int i, a0, b0, a1, b1;\
  84.         pixel *block = (pixel*)_block;\
  85.         const pixel *pixels = (const pixel*)_pixels;\
  86.         line_size >>= sizeof(pixel)-1;\
  87.         a0= pixels[0];\
  88.         b0= pixels[1] + 2;\
  89.         a0 += b0;\
  90.         b0 += pixels[2];\
  91. \
  92.         pixels+=line_size;\
  93.         for(i=0; i<h; i+=2){\
  94.             a1= pixels[0];\
  95.             b1= pixels[1];\
  96.             a1 += b1;\
  97.             b1 += pixels[2];\
  98. \
  99.             block[0]= (a1+a0)>>2; /* FIXME non put */\
  100.             block[1]= (b1+b0)>>2;\
  101. \
  102.             pixels+=line_size;\
  103.             block +=line_size;\
  104. \
  105.             a0= pixels[0];\
  106.             b0= pixels[1] + 2;\
  107.             a0 += b0;\
  108.             b0 += pixels[2];\
  109. \
  110.             block[0]= (a1+a0)>>2;\
  111.             block[1]= (b1+b0)>>2;\
  112.             pixels+=line_size;\
  113.             block +=line_size;\
  114.         }\
  115. }\
  116. \
  117. static inline void FUNCC(OPNAME ## _pixels4_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)\
  118. {\
  119.         /* FIXME HIGH BIT DEPTH */\
  120.         int i;\
  121.         const uint32_t a= AV_RN32(pixels  );\
  122.         const uint32_t b= AV_RN32(pixels+1);\
  123.         uint32_t l0=  (a&0x03030303UL)\
  124.                     + (b&0x03030303UL)\
  125.                     + 0x02020202UL;\
  126.         uint32_t h0= ((a&0xFCFCFCFCUL)>>2)\
  127.                    + ((b&0xFCFCFCFCUL)>>2);\
  128.         uint32_t l1,h1;\
  129. \
  130.         pixels+=line_size;\
  131.         for(i=0; i<h; i+=2){\
  132.             uint32_t a= AV_RN32(pixels  );\
  133.             uint32_t b= AV_RN32(pixels+1);\
  134.             l1=  (a&0x03030303UL)\
  135.                + (b&0x03030303UL);\
  136.             h1= ((a&0xFCFCFCFCUL)>>2)\
  137.               + ((b&0xFCFCFCFCUL)>>2);\
  138.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  139.             pixels+=line_size;\
  140.             block +=line_size;\
  141.             a= AV_RN32(pixels  );\
  142.             b= AV_RN32(pixels+1);\
  143.             l0=  (a&0x03030303UL)\
  144.                + (b&0x03030303UL)\
  145.                + 0x02020202UL;\
  146.             h0= ((a&0xFCFCFCFCUL)>>2)\
  147.               + ((b&0xFCFCFCFCUL)>>2);\
  148.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  149.             pixels+=line_size;\
  150.             block +=line_size;\
  151.         }\
  152. }\
  153. \
  154. static inline void FUNCC(OPNAME ## _pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)\
  155. {\
  156.     /* FIXME HIGH BIT DEPTH */\
  157.     int j;\
  158.     for(j=0; j<2; j++){\
  159.         int i;\
  160.         const uint32_t a= AV_RN32(pixels  );\
  161.         const uint32_t b= AV_RN32(pixels+1);\
  162.         uint32_t l0=  (a&0x03030303UL)\
  163.                     + (b&0x03030303UL)\
  164.                     + 0x02020202UL;\
  165.         uint32_t h0= ((a&0xFCFCFCFCUL)>>2)\
  166.                    + ((b&0xFCFCFCFCUL)>>2);\
  167.         uint32_t l1,h1;\
  168. \
  169.         pixels+=line_size;\
  170.         for(i=0; i<h; i+=2){\
  171.             uint32_t a= AV_RN32(pixels  );\
  172.             uint32_t b= AV_RN32(pixels+1);\
  173.             l1=  (a&0x03030303UL)\
  174.                + (b&0x03030303UL);\
  175.             h1= ((a&0xFCFCFCFCUL)>>2)\
  176.               + ((b&0xFCFCFCFCUL)>>2);\
  177.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  178.             pixels+=line_size;\
  179.             block +=line_size;\
  180.             a= AV_RN32(pixels  );\
  181.             b= AV_RN32(pixels+1);\
  182.             l0=  (a&0x03030303UL)\
  183.                + (b&0x03030303UL)\
  184.                + 0x02020202UL;\
  185.             h0= ((a&0xFCFCFCFCUL)>>2)\
  186.               + ((b&0xFCFCFCFCUL)>>2);\
  187.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  188.             pixels+=line_size;\
  189.             block +=line_size;\
  190.         }\
  191.         pixels+=4-line_size*(h+1);\
  192.         block +=4-line_size*h;\
  193.     }\
  194. }\
  195. \
  196. static inline void FUNCC(OPNAME ## _no_rnd_pixels8_xy2)(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)\
  197. {\
  198.     /* FIXME HIGH BIT DEPTH */\
  199.     int j;\
  200.     for(j=0; j<2; j++){\
  201.         int i;\
  202.         const uint32_t a= AV_RN32(pixels  );\
  203.         const uint32_t b= AV_RN32(pixels+1);\
  204.         uint32_t l0=  (a&0x03030303UL)\
  205.                     + (b&0x03030303UL)\
  206.                     + 0x01010101UL;\
  207.         uint32_t h0= ((a&0xFCFCFCFCUL)>>2)\
  208.                    + ((b&0xFCFCFCFCUL)>>2);\
  209.         uint32_t l1,h1;\
  210. \
  211.         pixels+=line_size;\
  212.         for(i=0; i<h; i+=2){\
  213.             uint32_t a= AV_RN32(pixels  );\
  214.             uint32_t b= AV_RN32(pixels+1);\
  215.             l1=  (a&0x03030303UL)\
  216.                + (b&0x03030303UL);\
  217.             h1= ((a&0xFCFCFCFCUL)>>2)\
  218.               + ((b&0xFCFCFCFCUL)>>2);\
  219.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  220.             pixels+=line_size;\
  221.             block +=line_size;\
  222.             a= AV_RN32(pixels  );\
  223.             b= AV_RN32(pixels+1);\
  224.             l0=  (a&0x03030303UL)\
  225.                + (b&0x03030303UL)\
  226.                + 0x01010101UL;\
  227.             h0= ((a&0xFCFCFCFCUL)>>2)\
  228.               + ((b&0xFCFCFCFCUL)>>2);\
  229.             OP(*((uint32_t*)block), h0+h1+(((l0+l1)>>2)&0x0F0F0F0FUL));\
  230.             pixels+=line_size;\
  231.             block +=line_size;\
  232.         }\
  233.         pixels+=4-line_size*(h+1);\
  234.         block +=4-line_size*h;\
  235.     }\
  236. }\
  237. \
  238. CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16_x2) , FUNCC(OPNAME ## _pixels8_x2) , 8*sizeof(pixel))\
  239. CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16_y2) , FUNCC(OPNAME ## _pixels8_y2) , 8*sizeof(pixel))\
  240. CALL_2X_PIXELS(FUNCC(OPNAME ## _pixels16_xy2), FUNCC(OPNAME ## _pixels8_xy2), 8*sizeof(pixel))\
  241. av_unused CALL_2X_PIXELS(FUNCC(OPNAME ## _no_rnd_pixels16)    , FUNCC(OPNAME ## _pixels8) , 8*sizeof(pixel))\
  242. CALL_2X_PIXELS(FUNCC(OPNAME ## _no_rnd_pixels16_x2) , FUNCC(OPNAME ## _no_rnd_pixels8_x2) , 8*sizeof(pixel))\
  243. CALL_2X_PIXELS(FUNCC(OPNAME ## _no_rnd_pixels16_y2) , FUNCC(OPNAME ## _no_rnd_pixels8_y2) , 8*sizeof(pixel))\
  244. CALL_2X_PIXELS(FUNCC(OPNAME ## _no_rnd_pixels16_xy2), FUNCC(OPNAME ## _no_rnd_pixels8_xy2), 8*sizeof(pixel))\
  245.  
  246. #define op_avg(a, b) a = rnd_avg_pixel4(a, b)
  247. #define op_put(a, b) a = b
  248. #if BIT_DEPTH == 8
  249. #define put_no_rnd_pixels8_8_c put_pixels8_8_c
  250. PIXOP2(avg, op_avg)
  251. PIXOP2(put, op_put)
  252. #endif
  253. #undef op_avg
  254. #undef op_put
  255.