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

   1 /*****************************************************************************
   2  * mc-c.c: arm motion compensation
   3  *****************************************************************************
   4  * Copyright (C) 2009-2014 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_deinterleave_neon(  pixel *dstu, intptr_t i_dstu,
  51                                          pixel *dstv, intptr_t i_dstv,
  52                                          pixel *src,  intptr_t i_src, int w, int h );
  53 void x264_plane_copy_deinterleave_rgb_neon( pixel *dsta, intptr_t i_dsta,
  54                                             pixel *dstb, intptr_t i_dstb,
  55                                             pixel *dstc, intptr_t i_dstc,
  56                                             pixel *src,  intptr_t i_src, int pw, int w, int h );
  57 void x264_plane_copy_interleave_neon( pixel *dst,  intptr_t i_dst,
  58                                       pixel *srcu, intptr_t i_srcu,
  59                                       pixel *srcv, intptr_t i_srcv, int w, int h );
  60
  61 void x264_store_interleave_chroma_neon( pixel *dst, intptr_t i_dst, pixel *srcu, pixel *srcv, int height );
  62 void x264_load_deinterleave_chroma_fdec_neon( pixel *dst, pixel *src, intptr_t i_src, int height );
  63 void x264_load_deinterleave_chroma_fenc_neon( pixel *dst, pixel *src, intptr_t i_src, int height );
  64
  65 #define MC_WEIGHT(func)\
  66 void x264_mc_weight_w20##func##_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  67 void x264_mc_weight_w16##func##_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  68 void x264_mc_weight_w8##func##_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  69 void x264_mc_weight_w4##func##_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, const x264_weight_t *, int );\
  70 \
  71 static weight_fn_t x264_mc##func##_wtab_neon[6] =\
  72 {\
  73     x264_mc_weight_w4##func##_neon,\
  74     x264_mc_weight_w4##func##_neon,\
  75     x264_mc_weight_w8##func##_neon,\
  76     x264_mc_weight_w16##func##_neon,\
  77     x264_mc_weight_w16##func##_neon,\
  78     x264_mc_weight_w20##func##_neon,\
  79 };
  80
  81 MC_WEIGHT()
  82 MC_WEIGHT(_nodenom)
  83 MC_WEIGHT(_offsetadd)
  84 MC_WEIGHT(_offsetsub)
  85
  86 void x264_mc_copy_w4_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  87 void x264_mc_copy_w8_neon ( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  88 void x264_mc_copy_w16_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  89 void x264_mc_copy_w16_aligned_neon( uint8_t *, intptr_t, uint8_t *, intptr_t, int );
  90
  91 void x264_mc_chroma_neon( uint8_t *, uint8_t *, intptr_t, uint8_t *, intptr_t, int, int, int, int );
  92 void x264_frame_init_lowres_core_neon( uint8_t *, uint8_t *, uint8_t *, uint8_t *, uint8_t *, intptr_t, intptr_t, int, int );
  93
  94 void x264_hpel_filter_v_neon( uint8_t *, uint8_t *, int16_t *, intptr_t, int );
  95 void x264_hpel_filter_c_neon( uint8_t *, int16_t *, int );
  96 void x264_hpel_filter_h_neon( uint8_t *, uint8_t *, int );
  97
  98 #if !HIGH_BIT_DEPTH
  99 static void x264_weight_cache_neon( x264_t *h, x264_weight_t *w )
 100 {
 101     if( w->i_scale == 1<<w->i_denom )
 102     {
 103         if( w->i_offset < 0 )
 104         {
 105             w->weightfn = x264_mc_offsetsub_wtab_neon;
 106             w->cachea[0] = -w->i_offset;
 107         }
 108         else
 109         {
 110             w->weightfn = x264_mc_offsetadd_wtab_neon;
 111             w->cachea[0] = w->i_offset;
 112         }
 113     }
 114     else if( !w->i_denom )
 115         w->weightfn = x264_mc_nodenom_wtab_neon;
 116     else
 117         w->weightfn = x264_mc_wtab_neon;
 118 }
 119
 120 static void (* const x264_pixel_avg_wtab_neon[6])( uint8_t *, intptr_t, uint8_t *, intptr_t, uint8_t *, int ) =
 121 {
 122     NULL,
 123     x264_pixel_avg2_w4_neon,
 124     x264_pixel_avg2_w8_neon,
 125     x264_pixel_avg2_w16_neon,   // no slower than w12, so no point in a separate function
 126     x264_pixel_avg2_w16_neon,
 127     x264_pixel_avg2_w20_neon,
 128 };
 129
 130 static void (* const x264_mc_copy_wtab_neon[5])( uint8_t *, intptr_t, uint8_t *, intptr_t, int ) =
 131 {
 132     NULL,
 133     x264_mc_copy_w4_neon,
 134     x264_mc_copy_w8_neon,
 135     NULL,
 136     x264_mc_copy_w16_neon,
 137 };
 138
 139 static const uint8_t hpel_ref0[16] = {0,1,1,1,0,1,1,1,2,3,3,3,0,1,1,1};
 140 static const uint8_t hpel_ref1[16] = {0,0,0,0,2,2,3,2,2,2,3,2,2,2,3,2};
 141
 142 static void mc_luma_neon( uint8_t *dst,    intptr_t i_dst_stride,
 143                           uint8_t *src[4], intptr_t i_src_stride,
 144                           int mvx, int mvy,
 145                           int i_width, int i_height, const x264_weight_t *weight )
 146 {
 147     int qpel_idx = ((mvy&3)<<2) + (mvx&3);
 148     intptr_t offset = (mvy>>2)*i_src_stride + (mvx>>2);
 149     uint8_t *src1 = src[hpel_ref0[qpel_idx]] + offset;
 150     if ( (mvy&3) == 3 )             // explict if() to force conditional add
 151         src1 += i_src_stride;
 152
 153     if( qpel_idx & 5 ) /* qpel interpolation needed */
 154     {
 155         uint8_t *src2 = src[hpel_ref1[qpel_idx]] + offset + ((mvx&3) == 3);
 156         x264_pixel_avg_wtab_neon[i_width>>2](
 157                 dst, i_dst_stride, src1, i_src_stride,
 158                 src2, i_height );
 159         if( weight->weightfn )
 160             weight->weightfn[i_width>>2]( dst, i_dst_stride, dst, i_dst_stride, weight, i_height );
 161     }
 162     else if( weight->weightfn )
 163         weight->weightfn[i_width>>2]( dst, i_dst_stride, src1, i_src_stride, weight, i_height );
 164     else
 165         x264_mc_copy_wtab_neon[i_width>>2]( dst, i_dst_stride, src1, i_src_stride, i_height );
 166 }
 167
 168 static uint8_t *get_ref_neon( uint8_t *dst,   intptr_t *i_dst_stride,
 169                               uint8_t *src[4], intptr_t i_src_stride,
 170                               int mvx, int mvy,
 171                               int i_width, int i_height, const x264_weight_t *weight )
 172 {
 173     int qpel_idx = ((mvy&3)<<2) + (mvx&3);
 174     intptr_t offset = (mvy>>2)*i_src_stride + (mvx>>2);
 175     uint8_t *src1 = src[hpel_ref0[qpel_idx]] + offset;
 176     if ( (mvy&3) == 3 )             // explict if() to force conditional add
 177         src1 += i_src_stride;
 178
 179     if( qpel_idx & 5 ) /* qpel interpolation needed */
 180     {
 181         uint8_t *src2 = src[hpel_ref1[qpel_idx]] + offset + ((mvx&3) == 3);
 182         x264_pixel_avg_wtab_neon[i_width>>2](
 183                 dst, *i_dst_stride, src1, i_src_stride,
 184                 src2, i_height );
 185         if( weight->weightfn )
 186             weight->weightfn[i_width>>2]( dst, *i_dst_stride, dst, *i_dst_stride, weight, i_height );
 187         return dst;
 188     }
 189     else if( weight->weightfn )
 190     {
 191         weight->weightfn[i_width>>2]( dst, *i_dst_stride, src1, i_src_stride, weight, i_height );
 192         return dst;
 193     }
 194     else
 195     {
 196         *i_dst_stride = i_src_stride;
 197         return src1;
 198     }
 199 }
 200
 201 static void hpel_filter_neon( uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, uint8_t *src,
 202                               intptr_t stride, int width, int height, int16_t *buf )
 203 {
 204     intptr_t realign = (intptr_t)src & 15;
 205     src -= realign;
 206     dstv -= realign;
 207     dstc -= realign;
 208     dsth -= realign;
 209     width += realign;
 210     while( height-- )
 211     {
 212         x264_hpel_filter_v_neon( dstv, src, buf+8, stride, width );
 213         x264_hpel_filter_c_neon( dstc, buf+8, width );
 214         x264_hpel_filter_h_neon( dsth, src, width );
 215         dsth += stride;
 216         dstv += stride;
 217         dstc += stride;
 218         src  += stride;
 219     }
 220 }
 221 #endif // !HIGH_BIT_DEPTH
 222
 223 void x264_mc_init_arm( int cpu, x264_mc_functions_t *pf )
 224 {
 225     if( !(cpu&X264_CPU_ARMV6) )
 226         return;
 227
 228 #if !HIGH_BIT_DEPTH
 229     pf->prefetch_fenc_420 = x264_prefetch_fenc_arm;
 230     pf->prefetch_fenc_422 = x264_prefetch_fenc_arm; /* FIXME */
 231     pf->prefetch_ref  = x264_prefetch_ref_arm;
 232 #endif // !HIGH_BIT_DEPTH
 233
 234     if( !(cpu&X264_CPU_NEON) )
 235         return;
 236
 237 #if !HIGH_BIT_DEPTH
 238     pf->copy_16x16_unaligned = x264_mc_copy_w16_neon;
 239     pf->copy[PIXEL_16x16] = x264_mc_copy_w16_aligned_neon;
 240     pf->copy[PIXEL_8x8]   = x264_mc_copy_w8_neon;
 241     pf->copy[PIXEL_4x4]   = x264_mc_copy_w4_neon;
 242
 243     pf->plane_copy_deinterleave = x264_plane_copy_deinterleave_neon;
 244     pf->plane_copy_deinterleave_rgb = x264_plane_copy_deinterleave_rgb_neon;
 245     pf->plane_copy_interleave = x264_plane_copy_interleave_neon;
 246
 247     pf->store_interleave_chroma = x264_store_interleave_chroma_neon;
 248     pf->load_deinterleave_chroma_fdec = x264_load_deinterleave_chroma_fdec_neon;
 249     pf->load_deinterleave_chroma_fenc = x264_load_deinterleave_chroma_fenc_neon;
 250
 251     pf->avg[PIXEL_16x16] = x264_pixel_avg_16x16_neon;
 252     pf->avg[PIXEL_16x8]  = x264_pixel_avg_16x8_neon;
 253     pf->avg[PIXEL_8x16]  = x264_pixel_avg_8x16_neon;
 254     pf->avg[PIXEL_8x8]   = x264_pixel_avg_8x8_neon;
 255     pf->avg[PIXEL_8x4]   = x264_pixel_avg_8x4_neon;
 256     pf->avg[PIXEL_4x16]  = x264_pixel_avg_4x16_neon;
 257     pf->avg[PIXEL_4x8]   = x264_pixel_avg_4x8_neon;
 258     pf->avg[PIXEL_4x4]   = x264_pixel_avg_4x4_neon;
 259     pf->avg[PIXEL_4x2]   = x264_pixel_avg_4x2_neon;
 260
 261     pf->weight    = x264_mc_wtab_neon;
 262     pf->offsetadd = x264_mc_offsetadd_wtab_neon;
 263     pf->offsetsub = x264_mc_offsetsub_wtab_neon;
 264     pf->weight_cache = x264_weight_cache_neon;
 265
 266     pf->mc_chroma = x264_mc_chroma_neon;
 267     pf->mc_luma = mc_luma_neon;
 268     pf->get_ref = get_ref_neon;
 269     pf->hpel_filter = hpel_filter_neon;
 270     pf->frame_init_lowres_core = x264_frame_init_lowres_core_neon;
 271 #endif // !HIGH_BIT_DEPTH
 272
 273 // Apple's gcc stupidly cannot align stack variables, and ALIGNED_ARRAY can't work on structs
 274 #ifndef SYS_MACOSX
 275     pf->memcpy_aligned  = x264_memcpy_aligned_neon;
 276 #endif
 277     pf->memzero_aligned = x264_memzero_aligned_neon;
 278 }