static void gmc1_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture) { uint8_t *ptr; int offset, src_x, src_y, linesize, uvlinesize; int motion_x, motion_y; int emu=0; motion_x= s->sprite_offset[0][0]; motion_y= s->sprite_offset[0][1]; src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1)); src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1)); motion_x<<=(3-s->sprite_warping_accuracy); motion_y<<=(3-s->sprite_warping_accuracy); src_x = av_clip(src_x, -16, s->width); if (src_x == s->width) motion_x =0; src_y = av_clip(src_y, -16, s->height); if (src_y == s->height) motion_y =0; linesize = s->linesize; uvlinesize = s->uvlinesize; ptr = ref_picture[0] + (src_y * linesize) + src_x; if(s->flags&CODEC_FLAG_EMU_EDGE){ if( (unsigned)src_x >= FFMAX(s->h_edge_pos - 17, 0) || (unsigned)src_y >= FFMAX(s->v_edge_pos - 17, 0)){ s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos); ptr= s->edge_emu_buffer; } } if((motion_x|motion_y)&7){ s->dsp.gmc1(dest_y , ptr , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding); s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding); }else{ int dxy; dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2); if (s->no_rounding){ s->hdsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16); }else{ s->hdsp.put_pixels_tab [0][dxy](dest_y, ptr, linesize, 16); } } if(CONFIG_GRAY && s->flags&CODEC_FLAG_GRAY) return; motion_x= s->sprite_offset[1][0]; motion_y= s->sprite_offset[1][1]; src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1)); src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1)); motion_x<<=(3-s->sprite_warping_accuracy); motion_y<<=(3-s->sprite_warping_accuracy); src_x = av_clip(src_x, -8, s->width>>1); if (src_x == s->width>>1) motion_x =0; src_y = av_clip(src_y, -8, s->height>>1); if (src_y == s->height>>1) motion_y =0; offset = (src_y * uvlinesize) + src_x; ptr = ref_picture[1] + offset; if(s->flags&CODEC_FLAG_EMU_EDGE){ if( (unsigned)src_x >= FFMAX((s->h_edge_pos>>1) - 9, 0) || (unsigned)src_y >= FFMAX((s->v_edge_pos>>1) - 9, 0)){ s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); ptr= s->edge_emu_buffer; emu=1; } } s->dsp.gmc1(dest_cb, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding); ptr = ref_picture[2] + offset; if(emu){ s->vdsp.emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); ptr= s->edge_emu_buffer; } s->dsp.gmc1(dest_cr, ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding); return; }