libmpeg2/motion_comp_arm.c

   1 /*
   2  * motion_comp_arm.c
   3  * Copyright (C) 2004 AGAWA Koji <i (AT) atty (DOT) jp>
   4  *
   5  * This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
   6  * See http://libmpeg2.sourceforge.net/ for updates.
   7  *
   8  * mpeg2dec is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * mpeg2dec is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24
  25 #ifdef ARCH_ARM
  26
  27 #include <inttypes.h>
  28
  29 #include "mpeg2.h"
  30 #include "attributes.h"
  31 #include "mpeg2_internal.h"
  32
  33 #define avg2(a,b) ((a+b+1)>>1)
  34 #define avg4(a,b,c,d) ((a+b+c+d+2)>>2)
  35
  36 #define predict_o(i) (ref[i])
  37 #define predict_x(i) (avg2 (ref[i], ref[i+1]))
  38 #define predict_y(i) (avg2 (ref[i], (ref+stride)[i]))
  39 #define predict_xy(i) (avg4 (ref[i], ref[i+1], \
  40                              (ref+stride)[i], (ref+stride)[i+1]))
  41
  42 #define put(predictor,i) dest[i] = predictor (i)
  43 #define avg(predictor,i) dest[i] = avg2 (predictor (i), dest[i])
  44
  45 /* mc function template */
  46
  47 #define MC_FUNC(op,xy)                                                  \
  48 static void inline MC_##op##_##xy##_16_c (uint8_t * dest, const uint8_t * ref,  \
  49                                    const int stride, int height)        \
  50 {                                                                       \
  51     do {                                                                \
  52         op (predict_##xy, 0);                                           \
  53         op (predict_##xy, 1);                                           \
  54         op (predict_##xy, 2);                                           \
  55         op (predict_##xy, 3);                                           \
  56         op (predict_##xy, 4);                                           \
  57         op (predict_##xy, 5);                                           \
  58         op (predict_##xy, 6);                                           \
  59         op (predict_##xy, 7);                                           \
  60         op (predict_##xy, 8);                                           \
  61         op (predict_##xy, 9);                                           \
  62         op (predict_##xy, 10);                                          \
  63         op (predict_##xy, 11);                                          \
  64         op (predict_##xy, 12);                                          \
  65         op (predict_##xy, 13);                                          \
  66         op (predict_##xy, 14);                                          \
  67         op (predict_##xy, 15);                                          \
  68         ref += stride;                                                  \
  69         dest += stride;                                                 \
  70     } while (--height);                                                 \
  71 }                                                                       \
  72 static void MC_##op##_##xy##_8_c (uint8_t * dest, const uint8_t * ref,  \
  73                                   const int stride, int height)         \
  74 {                                                                       \
  75     do {                                                                \
  76         op (predict_##xy, 0);                                           \
  77         op (predict_##xy, 1);                                           \
  78         op (predict_##xy, 2);                                           \
  79         op (predict_##xy, 3);                                           \
  80         op (predict_##xy, 4);                                           \
  81         op (predict_##xy, 5);                                           \
  82         op (predict_##xy, 6);                                           \
  83         op (predict_##xy, 7);                                           \
  84         ref += stride;                                                  \
  85         dest += stride;                                                 \
  86     } while (--height);                                                 \
  87 }                                                                       \
  88 /* definitions of the actual mc functions */
  89
  90 MC_FUNC (put,o)
  91 MC_FUNC (avg,o)
  92 MC_FUNC (put,x)
  93 MC_FUNC (avg,x)
  94 MC_FUNC (put,y)
  95 MC_FUNC (avg,y)
  96 MC_FUNC (put,xy)
  97 MC_FUNC (avg,xy)
  98
  99
 100 extern void MC_put_o_16_arm (uint8_t * dest, const uint8_t * ref,
 101                              int stride, int height);
 102
 103 extern void MC_put_x_16_arm (uint8_t * dest, const uint8_t * ref,
 104                              int stride, int height);
 105
 106
 107 static void MC_put_y_16_arm (uint8_t * dest, const uint8_t * ref,
 108                               int stride, int height)
 109 {
 110     MC_put_y_16_c(dest, ref, stride, height);
 111 }
 112
 113 static void MC_put_xy_16_arm (uint8_t * dest, const uint8_t * ref,
 114                                int stride, int height)
 115 {
 116     MC_put_xy_16_c(dest, ref, stride, height);
 117 }
 118
 119 extern void MC_put_o_8_arm (uint8_t * dest, const uint8_t * ref,
 120                                 int stride, int height);
 121
 122 extern void MC_put_x_8_arm (uint8_t * dest, const uint8_t * ref,
 123                             int stride, int height);
 124
 125 static void MC_put_y_8_arm (uint8_t * dest, const uint8_t * ref,
 126                              int stride, int height)
 127 {
 128     MC_put_y_8_c(dest, ref, stride, height);
 129 }
 130
 131 static void MC_put_xy_8_arm (uint8_t * dest, const uint8_t * ref,
 132                               int stride, int height)
 133 {
 134     MC_put_xy_8_c(dest, ref, stride, height);
 135 }
 136
 137 static void MC_avg_o_16_arm (uint8_t * dest, const uint8_t * ref,
 138                               int stride, int height)
 139 {
 140     MC_avg_o_16_c(dest, ref, stride, height);
 141 }
 142
 143 static void MC_avg_x_16_arm (uint8_t * dest, const uint8_t * ref,
 144                               int stride, int height)
 145 {
 146     MC_avg_x_16_c(dest, ref, stride, height);
 147 }
 148
 149 static void MC_avg_y_16_arm (uint8_t * dest, const uint8_t * ref,
 150                               int stride, int height)
 151 {
 152     MC_avg_y_16_c(dest, ref, stride, height);
 153 }
 154
 155 static void MC_avg_xy_16_arm (uint8_t * dest, const uint8_t * ref,
 156                                int stride, int height)
 157 {
 158     MC_avg_xy_16_c(dest, ref, stride, height);
 159 }
 160
 161 static void MC_avg_o_8_arm (uint8_t * dest, const uint8_t * ref,
 162                              int stride, int height)
 163 {
 164     MC_avg_o_8_c(dest, ref, stride, height);
 165 }
 166
 167 static void MC_avg_x_8_arm (uint8_t * dest, const uint8_t * ref,
 168                              int stride, int height)
 169 {
 170     MC_avg_x_8_c(dest, ref, stride, height);
 171 }
 172
 173 static void MC_avg_y_8_arm (uint8_t * dest, const uint8_t * ref,
 174                              int stride, int height)
 175 {
 176     MC_avg_y_8_c(dest, ref, stride, height);
 177 }
 178
 179 static void MC_avg_xy_8_arm (uint8_t * dest, const uint8_t * ref,
 180                               int stride, int height)
 181 {
 182     MC_avg_xy_8_c(dest, ref, stride, height);
 183 }
 184
 185 MPEG2_MC_EXTERN (arm)
 186
 187 #endif