vp8/encoder/sad_c.c

   1 /*
   2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11
  12 #include <stdlib.h>
  13
  14 unsigned int vp8_sad16x16_c(
  15     const unsigned char *src_ptr,
  16     int  src_stride,
  17     const unsigned char *ref_ptr,
  18     int  ref_stride,
  19     int max_sad)
  20 {
  21
  22     int r, c;
  23     unsigned int sad = 0;
  24
  25     for (r = 0; r < 16; r++)
  26     {
  27         for (c = 0; c < 16; c++)
  28         {
  29             sad += abs(src_ptr[c] - ref_ptr[c]);
  30         }
  31
  32         src_ptr += src_stride;
  33         ref_ptr += ref_stride;
  34     }
  35
  36     return sad;
  37 }
  38
  39
  40 static __inline
  41 unsigned int sad_mx_n_c(
  42     const unsigned char *src_ptr,
  43     int  src_stride,
  44     const unsigned char *ref_ptr,
  45     int  ref_stride,
  46     int m,
  47     int n)
  48 {
  49
  50     int r, c;
  51     unsigned int sad = 0;
  52
  53     for (r = 0; r < n; r++)
  54     {
  55         for (c = 0; c < m; c++)
  56         {
  57             sad += abs(src_ptr[c] - ref_ptr[c]);
  58         }
  59
  60         src_ptr += src_stride;
  61         ref_ptr += ref_stride;
  62     }
  63
  64     return sad;
  65 }
  66
  67
  68 unsigned int vp8_sad8x8_c(
  69     const unsigned char *src_ptr,
  70     int  src_stride,
  71     const unsigned char *ref_ptr,
  72     int  ref_stride,
  73     int max_sad)
  74 {
  75
  76     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 8, 8);
  77 }
  78
  79
  80 unsigned int vp8_sad16x8_c(
  81     const unsigned char *src_ptr,
  82     int  src_stride,
  83     const unsigned char *ref_ptr,
  84     int  ref_stride,
  85     int max_sad)
  86 {
  87
  88     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 16, 8);
  89
  90 }
  91
  92
  93 unsigned int vp8_sad8x16_c(
  94     const unsigned char *src_ptr,
  95     int  src_stride,
  96     const unsigned char *ref_ptr,
  97     int  ref_stride,
  98     int max_sad)
  99 {
 100
 101     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 8, 16);
 102 }
 103
 104
 105 unsigned int vp8_sad4x4_c(
 106     const unsigned char *src_ptr,
 107     int  src_stride,
 108     const unsigned char *ref_ptr,
 109     int  ref_stride,
 110     int max_sad)
 111 {
 112
 113     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, 4, 4);
 114 }
 115
 116 void vp8_sad16x16x3_c(
 117     const unsigned char *src_ptr,
 118     int  src_stride,
 119     const unsigned char *ref_ptr,
 120     int  ref_stride,
 121     unsigned int *sad_array
 122 )
 123 {
 124     sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 125     sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 126     sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 127 }
 128
 129 void vp8_sad16x16x8_c(
 130     const unsigned char *src_ptr,
 131     int  src_stride,
 132     const unsigned char *ref_ptr,
 133     int  ref_stride,
 134     unsigned short *sad_array
 135 )
 136 {
 137     sad_array[0] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 138     sad_array[1] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 139     sad_array[2] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 140     sad_array[3] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 3 , ref_stride, 0x7fffffff);
 141     sad_array[4] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, 0x7fffffff);
 142     sad_array[5] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, 0x7fffffff);
 143     sad_array[6] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 6 , ref_stride, 0x7fffffff);
 144     sad_array[7] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, 0x7fffffff);
 145 }
 146
 147 void vp8_sad16x8x3_c(
 148     const unsigned char *src_ptr,
 149     int  src_stride,
 150     const unsigned char *ref_ptr,
 151     int  ref_stride,
 152     unsigned int *sad_array
 153 )
 154 {
 155     sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 156     sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 157     sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 158 }
 159
 160 void vp8_sad16x8x8_c(
 161     const unsigned char *src_ptr,
 162     int  src_stride,
 163     const unsigned char *ref_ptr,
 164     int  ref_stride,
 165     unsigned short *sad_array
 166 )
 167 {
 168     sad_array[0] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 169     sad_array[1] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 170     sad_array[2] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 171     sad_array[3] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 3 , ref_stride, 0x7fffffff);
 172     sad_array[4] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, 0x7fffffff);
 173     sad_array[5] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, 0x7fffffff);
 174     sad_array[6] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 6 , ref_stride, 0x7fffffff);
 175     sad_array[7] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, 0x7fffffff);
 176 }
 177
 178 void vp8_sad8x8x3_c(
 179     const unsigned char *src_ptr,
 180     int  src_stride,
 181     const unsigned char *ref_ptr,
 182     int  ref_stride,
 183     unsigned int *sad_array
 184 )
 185 {
 186     sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 187     sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 188     sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 189 }
 190
 191 void vp8_sad8x8x8_c(
 192     const unsigned char *src_ptr,
 193     int  src_stride,
 194     const unsigned char *ref_ptr,
 195     int  ref_stride,
 196     unsigned short *sad_array
 197 )
 198 {
 199     sad_array[0] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 200     sad_array[1] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 201     sad_array[2] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 202     sad_array[3] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 3 , ref_stride, 0x7fffffff);
 203     sad_array[4] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, 0x7fffffff);
 204     sad_array[5] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, 0x7fffffff);
 205     sad_array[6] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 6 , ref_stride, 0x7fffffff);
 206     sad_array[7] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, 0x7fffffff);
 207 }
 208
 209 void vp8_sad8x16x3_c(
 210     const unsigned char *src_ptr,
 211     int  src_stride,
 212     const unsigned char *ref_ptr,
 213     int  ref_stride,
 214     unsigned int *sad_array
 215 )
 216 {
 217     sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 218     sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 219     sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 220 }
 221
 222 void vp8_sad8x16x8_c(
 223     const unsigned char *src_ptr,
 224     int  src_stride,
 225     const unsigned char *ref_ptr,
 226     int  ref_stride,
 227     unsigned short *sad_array
 228 )
 229 {
 230     sad_array[0] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 231     sad_array[1] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 232     sad_array[2] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 233     sad_array[3] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 3 , ref_stride, 0x7fffffff);
 234     sad_array[4] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, 0x7fffffff);
 235     sad_array[5] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, 0x7fffffff);
 236     sad_array[6] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 6 , ref_stride, 0x7fffffff);
 237     sad_array[7] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, 0x7fffffff);
 238 }
 239
 240 void vp8_sad4x4x3_c(
 241     const unsigned char *src_ptr,
 242     int  src_stride,
 243     const unsigned char *ref_ptr,
 244     int  ref_stride,
 245     unsigned int *sad_array
 246 )
 247 {
 248     sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 249     sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 250     sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 251 }
 252
 253 void vp8_sad4x4x8_c(
 254     const unsigned char *src_ptr,
 255     int  src_stride,
 256     const unsigned char *ref_ptr,
 257     int  ref_stride,
 258     unsigned short *sad_array
 259 )
 260 {
 261     sad_array[0] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr  , ref_stride, 0x7fffffff);
 262     sad_array[1] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, 0x7fffffff);
 263     sad_array[2] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, 0x7fffffff);
 264     sad_array[3] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 3 , ref_stride, 0x7fffffff);
 265     sad_array[4] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, 0x7fffffff);
 266     sad_array[5] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, 0x7fffffff);
 267     sad_array[6] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 6 , ref_stride, 0x7fffffff);
 268     sad_array[7] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, 0x7fffffff);
 269 }
 270
 271 void vp8_sad16x16x4d_c(
 272     const unsigned char *src_ptr,
 273     int  src_stride,
 274     unsigned char *ref_ptr[],
 275     int  ref_stride,
 276     unsigned int *sad_array
 277 )
 278 {
 279     sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
 280     sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
 281     sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
 282     sad_array[3] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
 283 }
 284
 285 void vp8_sad16x8x4d_c(
 286     const unsigned char *src_ptr,
 287     int  src_stride,
 288     unsigned char *ref_ptr[],
 289     int  ref_stride,
 290     unsigned int *sad_array
 291 )
 292 {
 293     sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
 294     sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
 295     sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
 296     sad_array[3] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
 297 }
 298
 299 void vp8_sad8x8x4d_c(
 300     const unsigned char *src_ptr,
 301     int  src_stride,
 302     unsigned char *ref_ptr[],
 303     int  ref_stride,
 304     unsigned int *sad_array
 305 )
 306 {
 307     sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
 308     sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
 309     sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
 310     sad_array[3] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
 311 }
 312
 313 void vp8_sad8x16x4d_c(
 314     const unsigned char *src_ptr,
 315     int  src_stride,
 316     unsigned char *ref_ptr[],
 317     int  ref_stride,
 318     unsigned int *sad_array
 319 )
 320 {
 321     sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
 322     sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
 323     sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
 324     sad_array[3] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
 325 }
 326
 327 void vp8_sad4x4x4d_c(
 328     const unsigned char *src_ptr,
 329     int  src_stride,
 330     unsigned char *ref_ptr[],
 331     int  ref_stride,
 332     unsigned int *sad_array
 333 )
 334 {
 335     sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[0], ref_stride, 0x7fffffff);
 336     sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[1], ref_stride, 0x7fffffff);
 337     sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[2], ref_stride, 0x7fffffff);
 338     sad_array[3] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[3], ref_stride, 0x7fffffff);
 339 }