mmxfrag.c | Explore in Territory

/********************************************************************
 *                                                                  *
 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE.   *
 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
 *                                                                  *
 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009                *
 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
 *                                                                  *
 ********************************************************************

  function:
    last mod: $Id$

 ********************************************************************/

/*MMX acceleration of fragment reconstruction for motion compensation.
  Originally written by Rudolf Marek.
  Additional optimization by Nils Pipenbrinck.
  Note: Loops are unrolled for best performance.
  The iteration each instruction belongs to is marked in the comments as #i.*/
#include <stddef.h>
#include "x86int.h"

#if defined(OC_X86_ASM)

/*Copies an 8x8 block of pixels from _src to _dst, assuming _ystride bytes
   between rows.*/
#define OC_FRAG_COPY_MMX(_dst,_src,_ystride) …

/*Copies an 8x8 block of pixels from _src to _dst, assuming _ystride bytes
   between rows.*/
void oc_frag_copy_mmx(unsigned char *_dst,
 const unsigned char *_src,int _ystride){ … }

/*Copies the fragments specified by the lists of fragment indices from one
   frame to another.
  _dst_frame:     The reference frame to copy to.
  _src_frame:     The reference frame to copy from.
  _ystride:       The row stride of the reference frames.
  _fragis:        A pointer to a list of fragment indices.
  _nfragis:       The number of fragment indices to copy.
  _frag_buf_offs: The offsets of fragments in the reference frames.*/
void oc_frag_copy_list_mmx(unsigned char *_dst_frame,
 const unsigned char *_src_frame,int _ystride,
 const ptrdiff_t *_fragis,ptrdiff_t _nfragis,const ptrdiff_t *_frag_buf_offs){ … }


void oc_frag_recon_intra_mmx(unsigned char *_dst,int _ystride,
 const ogg_int16_t *_residue){ … }

void oc_frag_recon_inter_mmx(unsigned char *_dst,const unsigned char *_src,
 int _ystride,const ogg_int16_t *_residue){ … }

void oc_frag_recon_inter2_mmx(unsigned char *_dst,const unsigned char *_src1,
 const unsigned char *_src2,int _ystride,const ogg_int16_t *_residue){ … }

void oc_restore_fpu_mmx(void){ … }
#endif
godot/thirdparty/libtheora/x86/mmxfrag.c
