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306 lines
13 KiB
C
306 lines
13 KiB
C
/*****************************************************************************
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* mc.h: motion compensation
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*****************************************************************************
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* Copyright (C) 2004-2016 x264 project
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*
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* Authors: Loren Merritt <lorenm@u.washington.edu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at licensing@x264.com.
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*****************************************************************************/
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#ifndef X264_MC_H
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#define X264_MC_H
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#define MC_CLIP_ADD(s,x) (s) = X264_MIN((s)+(x),(1<<15)-1)
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#define MC_CLIP_ADD2(s,x)\
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do\
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{\
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MC_CLIP_ADD((s)[0], (x)[0]);\
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MC_CLIP_ADD((s)[1], (x)[1]);\
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} while(0)
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#define PROPAGATE_LIST(cpu)\
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void x264_mbtree_propagate_list_internal_##cpu( int16_t (*mvs)[2], int16_t *propagate_amount,\
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uint16_t *lowres_costs, int16_t *output,\
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int bipred_weight, int mb_y, int len );\
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\
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static void x264_mbtree_propagate_list_##cpu( x264_t *h, uint16_t *ref_costs, int16_t (*mvs)[2],\
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int16_t *propagate_amount, uint16_t *lowres_costs,\
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int bipred_weight, int mb_y, int len, int list )\
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{\
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int16_t *current = h->scratch_buffer2;\
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\
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x264_mbtree_propagate_list_internal_##cpu( mvs, propagate_amount, lowres_costs,\
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current, bipred_weight, mb_y, len );\
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\
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unsigned stride = h->mb.i_mb_stride;\
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unsigned width = h->mb.i_mb_width;\
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unsigned height = h->mb.i_mb_height;\
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\
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for( unsigned i = 0; i < len; current += 32 )\
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{\
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int end = X264_MIN( i+8, len );\
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for( ; i < end; i++, current += 2 )\
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{\
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if( !(lowres_costs[i] & (1 << (list+LOWRES_COST_SHIFT))) )\
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continue;\
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\
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unsigned mbx = current[0];\
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unsigned mby = current[1];\
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unsigned idx0 = mbx + mby * stride;\
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unsigned idx2 = idx0 + stride;\
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\
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/* Shortcut for the simple/common case of zero MV */\
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if( !M32( mvs[i] ) )\
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{\
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MC_CLIP_ADD( ref_costs[idx0], current[16] );\
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continue;\
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}\
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\
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if( mbx < width-1 && mby < height-1 )\
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{\
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MC_CLIP_ADD2( ref_costs+idx0, current+16 );\
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MC_CLIP_ADD2( ref_costs+idx2, current+32 );\
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}\
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else\
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{\
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/* Note: this takes advantage of unsigned representation to\
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* catch negative mbx/mby. */\
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if( mby < height )\
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{\
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if( mbx < width )\
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MC_CLIP_ADD( ref_costs[idx0+0], current[16] );\
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if( mbx+1 < width )\
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MC_CLIP_ADD( ref_costs[idx0+1], current[17] );\
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}\
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if( mby+1 < height )\
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{\
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if( mbx < width )\
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MC_CLIP_ADD( ref_costs[idx2+0], current[32] );\
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if( mbx+1 < width )\
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MC_CLIP_ADD( ref_costs[idx2+1], current[33] );\
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}\
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}\
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}\
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}\
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}
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void x264_plane_copy_c( pixel *, intptr_t, pixel *, intptr_t, int w, int h );
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#define PLANE_COPY(align, cpu)\
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static void x264_plane_copy_##cpu( pixel *dst, intptr_t i_dst, pixel *src, intptr_t i_src, int w, int h )\
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{\
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int c_w = (align) / sizeof(pixel) - 1;\
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if( w < 256 ) /* tiny resolutions don't want non-temporal hints. dunno the exact threshold. */\
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x264_plane_copy_c( dst, i_dst, src, i_src, w, h );\
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else if( !(w&c_w) )\
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x264_plane_copy_core_##cpu( dst, i_dst, src, i_src, w, h );\
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else\
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{\
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if( --h > 0 )\
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{\
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if( i_src > 0 )\
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{\
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x264_plane_copy_core_##cpu( dst, i_dst, src, i_src, (w+c_w)&~c_w, h );\
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dst += i_dst * h;\
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src += i_src * h;\
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}\
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else\
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x264_plane_copy_core_##cpu( dst+i_dst, i_dst, src+i_src, i_src, (w+c_w)&~c_w, h );\
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}\
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/* use plain memcpy on the last line (in memory order) to avoid overreading src. */\
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memcpy( dst, src, w*sizeof(pixel) );\
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}\
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}
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void x264_plane_copy_swap_c( pixel *, intptr_t, pixel *, intptr_t, int w, int h );
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#define PLANE_COPY_SWAP(align, cpu)\
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static void x264_plane_copy_swap_##cpu( pixel *dst, intptr_t i_dst, pixel *src, intptr_t i_src, int w, int h )\
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{\
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int c_w = (align>>1) / sizeof(pixel) - 1;\
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if( !(w&c_w) )\
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x264_plane_copy_swap_core_##cpu( dst, i_dst, src, i_src, w, h );\
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else if( w > c_w )\
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{\
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if( --h > 0 )\
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{\
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if( i_src > 0 )\
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{\
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x264_plane_copy_swap_core_##cpu( dst, i_dst, src, i_src, (w+c_w)&~c_w, h );\
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dst += i_dst * h;\
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src += i_src * h;\
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}\
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else\
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x264_plane_copy_swap_core_##cpu( dst+i_dst, i_dst, src+i_src, i_src, (w+c_w)&~c_w, h );\
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}\
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x264_plane_copy_swap_core_##cpu( dst, 0, src, 0, w&~c_w, 1 );\
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for( int x = 2*(w&~c_w); x < 2*w; x += 2 )\
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{\
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dst[x] = src[x+1];\
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dst[x+1] = src[x];\
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}\
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}\
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else\
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x264_plane_copy_swap_c( dst, i_dst, src, i_src, w, h );\
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}
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void x264_plane_copy_interleave_c( pixel *dst, intptr_t i_dst,
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pixel *srcu, intptr_t i_srcu,
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pixel *srcv, intptr_t i_srcv, int w, int h );
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#define PLANE_INTERLEAVE(cpu) \
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static void x264_plane_copy_interleave_##cpu( pixel *dst, intptr_t i_dst,\
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pixel *srcu, intptr_t i_srcu,\
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pixel *srcv, intptr_t i_srcv, int w, int h )\
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{\
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int c_w = 16 / sizeof(pixel) - 1;\
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if( !(w&c_w) )\
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x264_plane_copy_interleave_core_##cpu( dst, i_dst, srcu, i_srcu, srcv, i_srcv, w, h );\
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else if( w > c_w && (i_srcu ^ i_srcv) >= 0 ) /* only works correctly for strides with identical signs */\
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{\
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if( --h > 0 )\
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{\
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if( i_srcu > 0 )\
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{\
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x264_plane_copy_interleave_core_##cpu( dst, i_dst, srcu, i_srcu, srcv, i_srcv, (w+c_w)&~c_w, h );\
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dst += i_dst * h;\
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srcu += i_srcu * h;\
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srcv += i_srcv * h;\
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}\
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else\
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x264_plane_copy_interleave_core_##cpu( dst+i_dst, i_dst, srcu+i_srcu, i_srcu, srcv+i_srcv, i_srcv, (w+c_w)&~c_w, h );\
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}\
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x264_plane_copy_interleave_c( dst, 0, srcu, 0, srcv, 0, w, 1 );\
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}\
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else\
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x264_plane_copy_interleave_c( dst, i_dst, srcu, i_srcu, srcv, i_srcv, w, h );\
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}
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struct x264_weight_t;
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typedef void (* weight_fn_t)( pixel *, intptr_t, pixel *,intptr_t, const struct x264_weight_t *, int );
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typedef struct x264_weight_t
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{
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/* aligning the first member is a gcc hack to force the struct to be
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* 16 byte aligned, as well as force sizeof(struct) to be a multiple of 16 */
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ALIGNED_16( int16_t cachea[8] );
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int16_t cacheb[8];
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int32_t i_denom;
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int32_t i_scale;
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int32_t i_offset;
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weight_fn_t *weightfn;
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} ALIGNED_16( x264_weight_t );
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extern const x264_weight_t x264_weight_none[3];
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extern const uint8_t x264_hpel_ref0[16];
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extern const uint8_t x264_hpel_ref1[16];
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#define SET_WEIGHT( w, b, s, d, o )\
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{\
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(w).i_scale = (s);\
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(w).i_denom = (d);\
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(w).i_offset = (o);\
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if( b )\
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h->mc.weight_cache( h, &w );\
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else\
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w.weightfn = NULL;\
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}
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/* Do the MC
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* XXX: Only width = 4, 8 or 16 are valid
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* width == 4 -> height == 4 or 8
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* width == 8 -> height == 4 or 8 or 16
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* width == 16-> height == 8 or 16
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* */
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typedef struct
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{
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void (*mc_luma)( pixel *dst, intptr_t i_dst, pixel **src, intptr_t i_src,
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int mvx, int mvy, int i_width, int i_height, const x264_weight_t *weight );
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/* may round up the dimensions if they're not a power of 2 */
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pixel* (*get_ref)( pixel *dst, intptr_t *i_dst, pixel **src, intptr_t i_src,
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int mvx, int mvy, int i_width, int i_height, const x264_weight_t *weight );
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/* mc_chroma may write up to 2 bytes of garbage to the right of dst,
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* so it must be run from left to right. */
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void (*mc_chroma)( pixel *dstu, pixel *dstv, intptr_t i_dst, pixel *src, intptr_t i_src,
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int mvx, int mvy, int i_width, int i_height );
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void (*avg[12])( pixel *dst, intptr_t dst_stride, pixel *src1, intptr_t src1_stride,
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pixel *src2, intptr_t src2_stride, int i_weight );
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/* only 16x16, 8x8, and 4x4 defined */
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void (*copy[7])( pixel *dst, intptr_t dst_stride, pixel *src, intptr_t src_stride, int i_height );
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void (*copy_16x16_unaligned)( pixel *dst, intptr_t dst_stride, pixel *src, intptr_t src_stride, int i_height );
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void (*store_interleave_chroma)( pixel *dst, intptr_t i_dst, pixel *srcu, pixel *srcv, int height );
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void (*load_deinterleave_chroma_fenc)( pixel *dst, pixel *src, intptr_t i_src, int height );
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void (*load_deinterleave_chroma_fdec)( pixel *dst, pixel *src, intptr_t i_src, int height );
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void (*plane_copy)( pixel *dst, intptr_t i_dst, pixel *src, intptr_t i_src, int w, int h );
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void (*plane_copy_swap)( pixel *dst, intptr_t i_dst, pixel *src, intptr_t i_src, int w, int h );
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void (*plane_copy_interleave)( pixel *dst, intptr_t i_dst, pixel *srcu, intptr_t i_srcu,
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pixel *srcv, intptr_t i_srcv, int w, int h );
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/* may write up to 15 pixels off the end of each plane */
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void (*plane_copy_deinterleave)( pixel *dstu, intptr_t i_dstu, pixel *dstv, intptr_t i_dstv,
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pixel *src, intptr_t i_src, int w, int h );
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void (*plane_copy_deinterleave_rgb)( pixel *dsta, intptr_t i_dsta, pixel *dstb, intptr_t i_dstb,
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pixel *dstc, intptr_t i_dstc, pixel *src, intptr_t i_src, int pw, int w, int h );
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void (*plane_copy_deinterleave_v210)( pixel *dsty, intptr_t i_dsty,
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pixel *dstc, intptr_t i_dstc,
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uint32_t *src, intptr_t i_src, int w, int h );
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void (*hpel_filter)( pixel *dsth, pixel *dstv, pixel *dstc, pixel *src,
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intptr_t i_stride, int i_width, int i_height, int16_t *buf );
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/* prefetch the next few macroblocks of fenc or fdec */
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void (*prefetch_fenc) ( pixel *pix_y, intptr_t stride_y, pixel *pix_uv, intptr_t stride_uv, int mb_x );
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void (*prefetch_fenc_420)( pixel *pix_y, intptr_t stride_y, pixel *pix_uv, intptr_t stride_uv, int mb_x );
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void (*prefetch_fenc_422)( pixel *pix_y, intptr_t stride_y, pixel *pix_uv, intptr_t stride_uv, int mb_x );
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/* prefetch the next few macroblocks of a hpel reference frame */
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void (*prefetch_ref)( pixel *pix, intptr_t stride, int parity );
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void *(*memcpy_aligned)( void *dst, const void *src, size_t n );
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void (*memzero_aligned)( void *dst, size_t n );
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/* successive elimination prefilter */
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void (*integral_init4h)( uint16_t *sum, pixel *pix, intptr_t stride );
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void (*integral_init8h)( uint16_t *sum, pixel *pix, intptr_t stride );
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void (*integral_init4v)( uint16_t *sum8, uint16_t *sum4, intptr_t stride );
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void (*integral_init8v)( uint16_t *sum8, intptr_t stride );
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void (*frame_init_lowres_core)( pixel *src0, pixel *dst0, pixel *dsth, pixel *dstv, pixel *dstc,
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intptr_t src_stride, intptr_t dst_stride, int width, int height );
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weight_fn_t *weight;
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weight_fn_t *offsetadd;
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weight_fn_t *offsetsub;
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void (*weight_cache)( x264_t *, x264_weight_t * );
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void (*mbtree_propagate_cost)( int16_t *dst, uint16_t *propagate_in, uint16_t *intra_costs,
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uint16_t *inter_costs, uint16_t *inv_qscales, float *fps_factor, int len );
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void (*mbtree_propagate_list)( x264_t *h, uint16_t *ref_costs, int16_t (*mvs)[2],
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int16_t *propagate_amount, uint16_t *lowres_costs,
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int bipred_weight, int mb_y, int len, int list );
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void (*mbtree_fix8_pack)( uint16_t *dst, float *src, int count );
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void (*mbtree_fix8_unpack)( float *dst, uint16_t *src, int count );
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} x264_mc_functions_t;
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void x264_mc_init( int cpu, x264_mc_functions_t *pf, int cpu_independent );
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#endif
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