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-rw-r--r--media/libtheora/lib/x86/mmxstate.c226
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diff --git a/media/libtheora/lib/x86/mmxstate.c b/media/libtheora/lib/x86/mmxstate.c
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+++ b/media/libtheora/lib/x86/mmxstate.c
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+/********************************************************************
+ * *
+ * 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 17563 2010-10-25 17:40:54Z tterribe $
+
+ ********************************************************************/
+
+/*MMX acceleration of complete fragment reconstruction algorithm.
+ Originally written by Rudolf Marek.*/
+#include <string.h>
+#include "x86int.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[128],int _last_zzi,ogg_uint16_t _dc_quant){
+ unsigned char *dst;
+ ptrdiff_t frag_buf_off;
+ int ystride;
+ int refi;
+ /*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;
+ int i;
+ /*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"
+ :
+ :[p]"r"((unsigned)p)
+ );
+ for(i=0;i<4;i++){
+ __asm__ __volatile__(
+ "movq %%mm0,"OC_MEM_OFFS(0x00,y)"\n\t"
+ "movq %%mm0,"OC_MEM_OFFS(0x08,y)"\n\t"
+ "movq %%mm0,"OC_MEM_OFFS(0x10,y)"\n\t"
+ "movq %%mm0,"OC_MEM_OFFS(0x18,y)"\n\t"
+ :[y]"=m"OC_ARRAY_OPERAND(ogg_int16_t,_dct_coeffs+64+16*i,16)
+ );
+ }
+ }
+ else{
+ /*Dequantize the DC coefficient.*/
+ _dct_coeffs[0]=(ogg_int16_t)(_dct_coeffs[0]*(int)_dc_quant);
+ oc_idct8x8(_state,_dct_coeffs+64,_dct_coeffs,_last_zzi);
+ }
+ /*Fill in the target buffer.*/
+ frag_buf_off=_state->frag_buf_offs[_fragi];
+ refi=_state->frags[_fragi].refi;
+ ystride=_state->ref_ystride[_pli];
+ dst=_state->ref_frame_data[OC_FRAME_SELF]+frag_buf_off;
+ if(refi==OC_FRAME_SELF)oc_frag_recon_intra_mmx(dst,ystride,_dct_coeffs+64);
+ else{
+ const unsigned char *ref;
+ int mvoffsets[2];
+ ref=_state->ref_frame_data[refi]+frag_buf_off;
+ if(oc_state_get_mv_offsets(_state,mvoffsets,_pli,
+ _state->frag_mvs[_fragi])>1){
+ oc_frag_recon_inter2_mmx(dst,ref+mvoffsets[0],ref+mvoffsets[1],ystride,
+ _dct_coeffs+64);
+ }
+ else oc_frag_recon_inter_mmx(dst,ref+mvoffsets[0],ystride,_dct_coeffs+64);
+ }
+}
+
+/*We copy these entire function to inline the actual MMX routines so that we
+ use only a single indirect call.*/
+
+void oc_loop_filter_init_mmx(signed char _bv[256],int _flimit){
+ memset(_bv,_flimit,8);
+}
+
+/*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,
+ signed char _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(OC_LOOP_FILTER8_MMX,ref,ystride,ll);
+ }
+ if(fragi0>fragi_top){
+ OC_LOOP_FILTER_V(OC_LOOP_FILTER8_MMX,ref,ystride,ll);
+ }
+ if(fragi+1<fragi_end&&!frags[fragi+1].coded){
+ OC_LOOP_FILTER_H(OC_LOOP_FILTER8_MMX,ref+8,ystride,ll);
+ }
+ if(fragi+nhfrags<fragi_bot&&!frags[fragi+nhfrags].coded){
+ OC_LOOP_FILTER_V(OC_LOOP_FILTER8_MMX,ref+(ystride<<3),ystride,ll);
+ }
+ }
+ fragi++;
+ }
+ fragi0+=nhfrags;
+ }
+}
+
+void oc_loop_filter_init_mmxext(signed char _bv[256],int _flimit){
+ memset(_bv,~(_flimit<<1),8);
+}
+
+/*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_mmxext(const oc_theora_state *_state,
+ signed char _bv[256],int _refi,int _pli,int _fragy0,int _fragy_end){
+ 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;
+ 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=fragi_top+_fragy_end*(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(OC_LOOP_FILTER8_MMXEXT,ref,ystride,_bv);
+ }
+ if(fragi0>fragi_top){
+ OC_LOOP_FILTER_V(OC_LOOP_FILTER8_MMXEXT,ref,ystride,_bv);
+ }
+ if(fragi+1<fragi_end&&!frags[fragi+1].coded){
+ OC_LOOP_FILTER_H(OC_LOOP_FILTER8_MMXEXT,ref+8,ystride,_bv);
+ }
+ if(fragi+nhfrags<fragi_bot&&!frags[fragi+nhfrags].coded){
+ OC_LOOP_FILTER_V(OC_LOOP_FILTER8_MMXEXT,ref+(ystride<<3),ystride,_bv);
+ }
+ }
+ fragi++;
+ }
+ fragi0+=nhfrags;
+ }
+}
+
+#endif
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