git.sesse.net Git - x264/blob - common/arm/mc-c.c

   1 /*****************************************************************************
   2  * mc-c.c: arm motion compensation
   3  *****************************************************************************
   4  * Copyright (C) 2009-2015 x264 project
   5  *
   6  * Authors: David Conrad <lessen42@gmail.com>
   7  *
   8  * This program 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  * This program 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., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  21  *
  22  * This program is also available under a commercial proprietary license.
  23  * For more information, contact us at licensing@x264.com.
  24  *****************************************************************************/
  25
  26 #include "common/common.h"
  27 #include "mc.h"
  28
  29 void x264_prefetch_ref_arm( uint8_t *, intptr_t, int );
  30 void x264_prefetch_fenc_arm( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  31
  32 void *x264_memcpy_aligned_neon( void *dst, const void *src, size_t n );
  33 void x264_memzero_aligned_neon( void *dst, size_t n );
  34
  35 void x264_pixel_avg_16x16_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  36 void x264_pixel_avg_16x8_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  37 void x264_pixel_avg_8x16_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  38 void x264_pixel_avg_8x8_neon  ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  39 void x264_pixel_avg_8x4_neon  ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  40 void x264_pixel_avg_4x16_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  41 void x264_pixel_avg_4x8_neon  ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  42 void x264_pixel_avg_4x4_neon  ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  43 void x264_pixel_avg_4x2_neon  ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  44
  45 void x264_pixel_avg2_w4_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int );
  46 void x264_pixel_avg2_w8_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int );
  47 void x264_pixel_avg2_w16_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int );
  48 void x264_pixel_avg2_w20_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int );
  49
  50 void x264_plane_copy_neon( pixel *dst, intptr_t i_dst,
  51                            pixel *src, intptr_t i_src, int w, int h );
  52 void x264_plane_copy_deinterleave_neon(  pixel *dstu, intptr_t i_dstu,
  53                                          pixel *dstv, intptr_t i_dstv,
  54                                          pixel *src,  intptr_t i_src, int w, int h );
  55 void x264_plane_copy_deinterleave_rgb_neon( pixel *dsta, intptr_t i_dsta,
  56                                             pixel *dstb, intptr_t i_dstb,
  57                                             pixel *dstc, intptr_t i_dstc,
  58                                             pixel *src,  intptr_t i_src, int pw, int w, int h );
  59 void x264_plane_copy_interleave_neon( pixel *dst,  intptr_t i_dst,
  60                                       pixel *srcu, intptr_t i_srcu,
  61                                       pixel *srcv, intptr_t i_srcv, int w, int h );
  62 void x264_plane_copy_swap_neon( pixel *dst, intptr_t i_dst,
  63                                 pixel *src, intptr_t i_src, int w, int h );
  64
  65 void x264_store_interleave_chroma_neon( pixel *dst, intptr_t i_dst, pixel *srcu, pixel *srcv, int height );
  66 void x264_load_deinterleave_chroma_fdec_neon( pixel *dst, pixel *src, intptr_t i_src, int height );
  67 void x264_load_deinterleave_chroma_fenc_neon( pixel *dst, pixel *src, intptr_t i_src, int height );
  68
  69 #define MC_WEIGHT(func)\
  70 void x264_mc_weight_w20##func##_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  71 void x264_mc_weight_w16##func##_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  72 void x264_mc_weight_w8##func##_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  73 void x264_mc_weight_w4##func##_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  74 \
  75 static weight_fn_t x264_mc##func##_wtab_neon[6] =\
  76 {\
  77     x264_mc_weight_w4##func##_neon,\
  78     x264_mc_weight_w4##func##_neon,\
  79     x264_mc_weight_w8##func##_neon,\
  80     x264_mc_weight_w16##func##_neon,\
  81     x264_mc_weight_w16##func##_neon,\
  82     x264_mc_weight_w20##func##_neon,\
  83 };
  84
  85 MC_WEIGHT()
  86 MC_WEIGHT(_nodenom)
  87 MC_WEIGHT(_offsetadd)
  88 MC_WEIGHT(_offsetsub)
  89
  90 void x264_mc_copy_w4_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  91 void x264_mc_copy_w8_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  92 void x264_mc_copy_w16_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  93 void x264_mc_copy_w16_aligned_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  94
  95 void x264_mc_chroma_neon( uint8_t *, uint8_t *, intptr_t, uint8_t *, intptr_t, int, int, int, int );
  96 void x264_frame_init_lowres_core_neon( uint8_t *, uint8_t *, uint8_t *, uint8_t *, uint8_t *, intptr_t, intptr_t, int, int );
  97
  98 void x264_hpel_filter_v_neon( uint8_t *, uint8_t *, int16_t *, intptr_t, int );
  99 void x264_hpel_filter_c_neon( uint8_t *, int16_t *, int );
 100 void x264_hpel_filter_h_neon( uint8_t *, uint8_t *, int );
 101
 102 void integral_init4h_neon( uint16_t *, uint8_t *, intptr_t );
 103 void integral_init4v_neon( uint16_t *, uint16_t *, intptr_t );
 104 void integral_init8h_neon( uint16_t *, uint8_t *, intptr_t );
 105 void integral_init8v_neon( uint16_t *, intptr_t );
 106
 107 #if !HIGH_BIT_DEPTH
 108 static void x264_weight_cache_neon( x264_t *h, x264_weight_t *w )
 109 {
 110     if( w->i_scale == 1<<w->i_denom )
 111     {
 112         if( w->i_offset < 0 )
 113         {
 114             w->weightfn = x264_mc_offsetsub_wtab_neon;
 115             w->cachea[0] = -w->i_offset;
 116         }
 117         else
 118         {
 119             w->weightfn = x264_mc_offsetadd_wtab_neon;
 120             w->cachea[0] = w->i_offset;
 121         }
 122     }
 123     else if( !w->i_denom )
 124         w->weightfn = x264_mc_nodenom_wtab_neon;
 125     else
 126         w->weightfn = x264_mc_wtab_neon;
 127 }
 128
 129 static void (* const x264_pixel_avg_wtab_neon[6])( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int ) =
 130 {
 131     NULL,
 132     x264_pixel_avg2_w4_neon,
 133     x264_pixel_avg2_w8_neon,
 134     x264_pixel_avg2_w16_neon,   // no slower than w12, so no point in a separate function
 135     x264_pixel_avg2_w16_neon,
 136     x264_pixel_avg2_w20_neon,
 137 };
 138
 139 static void (* const x264_mc_copy_wtab_neon[5])( uint8_t *, intptr_t, uint8_t *, intptr_t, int ) =
 140 {
 141     NULL,
 142     x264_mc_copy_w4_neon,
 143     x264_mc_copy_w8_neon,
 144     NULL,
 145     x264_mc_copy_w16_neon,
 146 };
 147
 148 static void mc_luma_neon( uint8_t *dst,    intptr_t i_dst_stride,
 149                           uint8_t *src[4], intptr_t i_src_stride,
 150                           int mvx, int mvy,
 151                           int i_width, int i_height, const x264_weight_t *weight )
 152 {
 153     int qpel_idx = ((mvy&3)<<2) + (mvx&3);
 154     intptr_t offset = (mvy>>2)*i_src_stride + (mvx>>2);
 155     uint8_t *src1 = src[x264_hpel_ref0[qpel_idx]] + offset;
 156     if ( (mvy&3) == 3 )             // explict if() to force conditional add
 157         src1 += i_src_stride;
 158
 159     if( qpel_idx & 5 ) /* qpel interpolation needed */
 160     {
 161         uint8_t *src2 = src[x264_hpel_ref1[qpel_idx]] + offset + ((mvx&3) == 3);
 162         x264_pixel_avg_wtab_neon[i_width>>2](
 163                 dst, i_dst_stride, src1, i_src_stride,
 164                 src2, i_height );
 165         if( weight->weightfn )
 166             weight->weightfn[i_width>>2]( dst, i_dst_stride, dst, i_dst_stride, weight, i_height );
 167     }
 168     else if( weight->weightfn )
 169         weight->weightfn[i_width>>2]( dst, i_dst_stride, src1, i_src_stride, weight, i_height );
 170     else
 171         x264_mc_copy_wtab_neon[i_width>>2]( dst, i_dst_stride, src1, i_src_stride, i_height );
 172 }
 173
 174 static uint8_t *get_ref_neon( uint8_t *dst,   intptr_t *i_dst_stride,
 175                               uint8_t *src[4], intptr_t i_src_stride,
 176                               int mvx, int mvy,
 177                               int i_width, int i_height, const x264_weight_t *weight )
 178 {
 179     int qpel_idx = ((mvy&3)<<2) + (mvx&3);
 180     intptr_t offset = (mvy>>2)*i_src_stride + (mvx>>2);
 181     uint8_t *src1 = src[x264_hpel_ref0[qpel_idx]] + offset;
 182     if ( (mvy&3) == 3 )             // explict if() to force conditional add
 183         src1 += i_src_stride;
 184
 185     if( qpel_idx & 5 ) /* qpel interpolation needed */
 186     {
 187         uint8_t *src2 = src[x264_hpel_ref1[qpel_idx]] + offset + ((mvx&3) == 3);
 188         x264_pixel_avg_wtab_neon[i_width>>2](
 189                 dst, *i_dst_stride, src1, i_src_stride,
 190                 src2, i_height );
 191         if( weight->weightfn )
 192             weight->weightfn[i_width>>2]( dst, *i_dst_stride, dst, *i_dst_stride, weight, i_height );
 193         return dst;
 194     }
 195     else if( weight->weightfn )
 196     {
 197         weight->weightfn[i_width>>2]( dst, *i_dst_stride, src1, i_src_stride, weight, i_height );
 198         return dst;
 199     }
 200     else
 201     {
 202         *i_dst_stride = i_src_stride;
 203         return src1;
 204     }
 205 }
 206
 207 static void hpel_filter_neon( uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, uint8_t *src,
 208                               intptr_t stride, int width, int height, int16_t *buf )
 209 {
 210     intptr_t realign = (intptr_t)src & 15;
 211     src -= realign;
 212     dstv -= realign;
 213     dstc -= realign;
 214     dsth -= realign;
 215     width += realign;
 216     while( height-- )
 217     {
 218         x264_hpel_filter_v_neon( dstv, src, buf+8, stride, width );
 219         x264_hpel_filter_c_neon( dstc, buf+8, width );
 220         x264_hpel_filter_h_neon( dsth, src, width );
 221         dsth += stride;
 222         dstv += stride;
 223         dstc += stride;
 224         src  += stride;
 225     }
 226 }
 227 #endif // !HIGH_BIT_DEPTH
 228
 229 void x264_mc_init_arm( int cpu, x264_mc_functions_t *pf )
 230 {
 231     if( !(cpu&X264_CPU_ARMV6) )
 232         return;
 233
 234 #if !HIGH_BIT_DEPTH
 235     pf->prefetch_fenc_420 = x264_prefetch_fenc_arm;
 236     pf->prefetch_fenc_422 = x264_prefetch_fenc_arm; /* FIXME */
 237     pf->prefetch_ref  = x264_prefetch_ref_arm;
 238 #endif // !HIGH_BIT_DEPTH
 239
 240     if( !(cpu&X264_CPU_NEON) )
 241         return;
 242
 243 #if !HIGH_BIT_DEPTH
 244     pf->copy_16x16_unaligned = x264_mc_copy_w16_neon;
 245     pf->copy[PIXEL_16x16] = x264_mc_copy_w16_aligned_neon;
 246     pf->copy[PIXEL_8x8]   = x264_mc_copy_w8_neon;
 247     pf->copy[PIXEL_4x4]   = x264_mc_copy_w4_neon;
 248
 249     pf->plane_copy              = x264_plane_copy_neon;
 250     pf->plane_copy_deinterleave = x264_plane_copy_deinterleave_neon;
 251     pf->plane_copy_deinterleave_rgb = x264_plane_copy_deinterleave_rgb_neon;
 252     pf->plane_copy_interleave = x264_plane_copy_interleave_neon;
 253     pf->plane_copy_swap = x264_plane_copy_swap_neon;
 254
 255     pf->store_interleave_chroma = x264_store_interleave_chroma_neon;
 256     pf->load_deinterleave_chroma_fdec = x264_load_deinterleave_chroma_fdec_neon;
 257     pf->load_deinterleave_chroma_fenc = x264_load_deinterleave_chroma_fenc_neon;
 258
 259     pf->avg[PIXEL_16x16] = x264_pixel_avg_16x16_neon;
 260     pf->avg[PIXEL_16x8]  = x264_pixel_avg_16x8_neon;
 261     pf->avg[PIXEL_8x16]  = x264_pixel_avg_8x16_neon;
 262     pf->avg[PIXEL_8x8]   = x264_pixel_avg_8x8_neon;
 263     pf->avg[PIXEL_8x4]   = x264_pixel_avg_8x4_neon;
 264     pf->avg[PIXEL_4x16]  = x264_pixel_avg_4x16_neon;
 265     pf->avg[PIXEL_4x8]   = x264_pixel_avg_4x8_neon;
 266     pf->avg[PIXEL_4x4]   = x264_pixel_avg_4x4_neon;
 267     pf->avg[PIXEL_4x2]   = x264_pixel_avg_4x2_neon;
 268
 269     pf->weight    = x264_mc_wtab_neon;
 270     pf->offsetadd = x264_mc_offsetadd_wtab_neon;
 271     pf->offsetsub = x264_mc_offsetsub_wtab_neon;
 272     pf->weight_cache = x264_weight_cache_neon;
 273
 274     pf->mc_chroma = x264_mc_chroma_neon;
 275     pf->mc_luma = mc_luma_neon;
 276     pf->get_ref = get_ref_neon;
 277     pf->hpel_filter = hpel_filter_neon;
 278     pf->frame_init_lowres_core = x264_frame_init_lowres_core_neon;
 279
 280     pf->integral_init4h = integral_init4h_neon;
 281     pf->integral_init8h = integral_init8h_neon;
 282     pf->integral_init4v = integral_init4v_neon;
 283     pf->integral_init8v = integral_init8v_neon;
 284 #endif // !HIGH_BIT_DEPTH
 285
 286 // Apple's gcc stupidly cannot align stack variables, and ALIGNED_ARRAY can't work on structs
 287 #ifndef SYS_MACOSX
 288     pf->memcpy_aligned  = x264_memcpy_aligned_neon;
 289 #endif
 290     pf->memzero_aligned = x264_memzero_aligned_neon;
 291 }