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Diffstat (limited to 'drivers/theora/x86/mmxstate.c')
| -rw-r--r-- | drivers/theora/x86/mmxstate.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/drivers/theora/x86/mmxstate.c b/drivers/theora/x86/mmxstate.c new file mode 100644 index 0000000000..808b0a789b --- /dev/null +++ b/drivers/theora/x86/mmxstate.c @@ -0,0 +1,188 @@ +/******************************************************************** + * * + * 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: mmxstate.c 16503 2009-08-22 18:14:02Z giles $ + + ********************************************************************/ + +/*MMX acceleration of complete fragment reconstruction algorithm. + Originally written by Rudolf Marek.*/ +#include <string.h> +#include "x86int.h" +#include "mmxfrag.h" +#include "mmxloop.h" + +#if defined(OC_X86_ASM) + +void oc_state_frag_recon_mmx(const oc_theora_state *_state,ptrdiff_t _fragi, + int _pli,ogg_int16_t _dct_coeffs[64],int _last_zzi,ogg_uint16_t _dc_quant){ + unsigned char *dst; + ptrdiff_t frag_buf_off; + int ystride; + int mb_mode; + /*Apply the inverse transform.*/ + /*Special case only having a DC component.*/ + if(_last_zzi<2){ + /*Note that this value must be unsigned, to keep the __asm__ block from + sign-extending it when it puts it in a register.*/ + ogg_uint16_t p; + /*We round this dequant product (and not any of the others) because there's + no iDCT rounding.*/ + p=(ogg_int16_t)(_dct_coeffs[0]*(ogg_int32_t)_dc_quant+15>>5); + /*Fill _dct_coeffs with p.*/ + __asm__ __volatile__( + /*mm0=0000 0000 0000 AAAA*/ + "movd %[p],%%mm0\n\t" + /*mm0=0000 0000 AAAA AAAA*/ + "punpcklwd %%mm0,%%mm0\n\t" + /*mm0=AAAA AAAA AAAA AAAA*/ + "punpckldq %%mm0,%%mm0\n\t" + "movq %%mm0,(%[y])\n\t" + "movq %%mm0,8(%[y])\n\t" + "movq %%mm0,16(%[y])\n\t" + "movq %%mm0,24(%[y])\n\t" + "movq %%mm0,32(%[y])\n\t" + "movq %%mm0,40(%[y])\n\t" + "movq %%mm0,48(%[y])\n\t" + "movq %%mm0,56(%[y])\n\t" + "movq %%mm0,64(%[y])\n\t" + "movq %%mm0,72(%[y])\n\t" + "movq %%mm0,80(%[y])\n\t" + "movq %%mm0,88(%[y])\n\t" + "movq %%mm0,96(%[y])\n\t" + "movq %%mm0,104(%[y])\n\t" + "movq %%mm0,112(%[y])\n\t" + "movq %%mm0,120(%[y])\n\t" + : + :[y]"r"(_dct_coeffs),[p]"r"((unsigned)p) + :"memory" + ); + } + else{ + /*Dequantize the DC coefficient.*/ + _dct_coeffs[0]=(ogg_int16_t)(_dct_coeffs[0]*(int)_dc_quant); + oc_idct8x8_mmx(_dct_coeffs,_last_zzi); + } + /*Fill in the target buffer.*/ + frag_buf_off=_state->frag_buf_offs[_fragi]; + mb_mode=_state->frags[_fragi].mb_mode; + ystride=_state->ref_ystride[_pli]; + dst=_state->ref_frame_data[_state->ref_frame_idx[OC_FRAME_SELF]]+frag_buf_off; + if(mb_mode==OC_MODE_INTRA)oc_frag_recon_intra_mmx(dst,ystride,_dct_coeffs); + else{ + const unsigned char *ref; + int mvoffsets[2]; + ref= + _state->ref_frame_data[_state->ref_frame_idx[OC_FRAME_FOR_MODE(mb_mode)]] + +frag_buf_off; + if(oc_state_get_mv_offsets(_state,mvoffsets,_pli, + _state->frag_mvs[_fragi][0],_state->frag_mvs[_fragi][1])>1){ + oc_frag_recon_inter2_mmx(dst,ref+mvoffsets[0],ref+mvoffsets[1],ystride, + _dct_coeffs); + } + else oc_frag_recon_inter_mmx(dst,ref+mvoffsets[0],ystride,_dct_coeffs); + } +} + +/*We copy these entire function to inline the actual MMX routines so that we + use only a single indirect call.*/ + +/*Copies the fragments specified by the lists of fragment indices from one + frame to another. + _fragis: A pointer to a list of fragment indices. + _nfragis: The number of fragment indices to copy. + _dst_frame: The reference frame to copy to. + _src_frame: The reference frame to copy from. + _pli: The color plane the fragments lie in.*/ +void oc_state_frag_copy_list_mmx(const oc_theora_state *_state, + const ptrdiff_t *_fragis,ptrdiff_t _nfragis, + int _dst_frame,int _src_frame,int _pli){ + const ptrdiff_t *frag_buf_offs; + const unsigned char *src_frame_data; + unsigned char *dst_frame_data; + ptrdiff_t fragii; + int ystride; + dst_frame_data=_state->ref_frame_data[_state->ref_frame_idx[_dst_frame]]; + src_frame_data=_state->ref_frame_data[_state->ref_frame_idx[_src_frame]]; + ystride=_state->ref_ystride[_pli]; + frag_buf_offs=_state->frag_buf_offs; + for(fragii=0;fragii<_nfragis;fragii++){ + ptrdiff_t frag_buf_off; + frag_buf_off=frag_buf_offs[_fragis[fragii]]; + OC_FRAG_COPY_MMX(dst_frame_data+frag_buf_off, + src_frame_data+frag_buf_off,ystride); + } +} + +/*Apply the loop filter to a given set of fragment rows in the given plane. + The filter may be run on the bottom edge, affecting pixels in the next row of + fragments, so this row also needs to be available. + _bv: The bounding values array. + _refi: The index of the frame buffer to filter. + _pli: The color plane to filter. + _fragy0: The Y coordinate of the first fragment row to filter. + _fragy_end: The Y coordinate of the fragment row to stop filtering at.*/ +void oc_state_loop_filter_frag_rows_mmx(const oc_theora_state *_state, + int _bv[256],int _refi,int _pli,int _fragy0,int _fragy_end){ + OC_ALIGN8(unsigned char ll[8]); + const oc_fragment_plane *fplane; + const oc_fragment *frags; + const ptrdiff_t *frag_buf_offs; + unsigned char *ref_frame_data; + ptrdiff_t fragi_top; + ptrdiff_t fragi_bot; + ptrdiff_t fragi0; + ptrdiff_t fragi0_end; + int ystride; + int nhfrags; + memset(ll,_state->loop_filter_limits[_state->qis[0]],sizeof(ll)); + fplane=_state->fplanes+_pli; + nhfrags=fplane->nhfrags; + fragi_top=fplane->froffset; + fragi_bot=fragi_top+fplane->nfrags; + fragi0=fragi_top+_fragy0*(ptrdiff_t)nhfrags; + fragi0_end=fragi0+(_fragy_end-_fragy0)*(ptrdiff_t)nhfrags; + ystride=_state->ref_ystride[_pli]; + frags=_state->frags; + frag_buf_offs=_state->frag_buf_offs; + ref_frame_data=_state->ref_frame_data[_refi]; + /*The following loops are constructed somewhat non-intuitively on purpose. + The main idea is: if a block boundary has at least one coded fragment on + it, the filter is applied to it. + However, the order that the filters are applied in matters, and VP3 chose + the somewhat strange ordering used below.*/ + while(fragi0<fragi0_end){ + ptrdiff_t fragi; + ptrdiff_t fragi_end; + fragi=fragi0; + fragi_end=fragi+nhfrags; + while(fragi<fragi_end){ + if(frags[fragi].coded){ + unsigned char *ref; + ref=ref_frame_data+frag_buf_offs[fragi]; + if(fragi>fragi0)OC_LOOP_FILTER_H_MMX(ref,ystride,ll); + if(fragi0>fragi_top)OC_LOOP_FILTER_V_MMX(ref,ystride,ll); + if(fragi+1<fragi_end&&!frags[fragi+1].coded){ + OC_LOOP_FILTER_H_MMX(ref+8,ystride,ll); + } + if(fragi+nhfrags<fragi_bot&&!frags[fragi+nhfrags].coded){ + OC_LOOP_FILTER_V_MMX(ref+(ystride<<3),ystride,ll); + } + } + fragi++; + } + fragi0+=nhfrags; + } +} + +#endif |