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gecko-dev/media/libtheora/lib/arm/armstate.c

220 строки
8.3 KiB
C
Исходник Ответственный История

/********************************************************************
* *
* 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) 2002-2010 *
* by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
* *
********************************************************************
function:
last mod: $Id: x86state.c 17344 2010-07-21 01:42:18Z tterribe $
********************************************************************/
#include "armint.h"
#if defined(OC_ARM_ASM)
# if defined(OC_ARM_ASM_NEON)
/*This table has been modified from OC_FZIG_ZAG by baking an 8x8 transpose into
the destination.*/
static const unsigned char OC_FZIG_ZAG_NEON[128]={
0, 8, 1, 2, 9,16,24,17,
10, 3, 4,11,18,25,32,40,
33,26,19,12, 5, 6,13,20,
27,34,41,48,56,49,42,35,
28,21,14, 7,15,22,29,36,
43,50,57,58,51,44,37,30,
23,31,38,45,52,59,60,53,
46,39,47,54,61,62,55,63,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64,
64,64,64,64,64,64,64,64
};
# endif
void oc_state_accel_init_arm(oc_theora_state *_state){
oc_state_accel_init_c(_state);
_state->cpu_flags=oc_cpu_flags_get();
# if defined(OC_STATE_USE_VTABLE)
_state->opt_vtable.frag_copy_list=oc_frag_copy_list_arm;
_state->opt_vtable.frag_recon_intra=oc_frag_recon_intra_arm;
_state->opt_vtable.frag_recon_inter=oc_frag_recon_inter_arm;
_state->opt_vtable.frag_recon_inter2=oc_frag_recon_inter2_arm;
_state->opt_vtable.idct8x8=oc_idct8x8_arm;
_state->opt_vtable.state_frag_recon=oc_state_frag_recon_arm;
/*Note: We _must_ set this function pointer, because the macro in armint.h
calls it with different arguments, so the C version will segfault.*/
_state->opt_vtable.state_loop_filter_frag_rows=
(oc_state_loop_filter_frag_rows_func)oc_loop_filter_frag_rows_arm;
# endif
# if defined(OC_ARM_ASM_EDSP)
if(_state->cpu_flags&OC_CPU_ARM_EDSP){
# if defined(OC_STATE_USE_VTABLE)
_state->opt_vtable.frag_copy_list=oc_frag_copy_list_edsp;
# endif
}
# if defined(OC_ARM_ASM_MEDIA)
if(_state->cpu_flags&OC_CPU_ARM_MEDIA){
# if defined(OC_STATE_USE_VTABLE)
_state->opt_vtable.frag_recon_intra=oc_frag_recon_intra_v6;
_state->opt_vtable.frag_recon_inter=oc_frag_recon_inter_v6;
_state->opt_vtable.frag_recon_inter2=oc_frag_recon_inter2_v6;
_state->opt_vtable.idct8x8=oc_idct8x8_v6;
_state->opt_vtable.state_frag_recon=oc_state_frag_recon_v6;
_state->opt_vtable.loop_filter_init=oc_loop_filter_init_v6;
_state->opt_vtable.state_loop_filter_frag_rows=
(oc_state_loop_filter_frag_rows_func)oc_loop_filter_frag_rows_v6;
# endif
}
# if defined(OC_ARM_ASM_NEON)
if(_state->cpu_flags&OC_CPU_ARM_NEON){
# if defined(OC_STATE_USE_VTABLE)
_state->opt_vtable.frag_copy_list=oc_frag_copy_list_neon;
_state->opt_vtable.frag_recon_intra=oc_frag_recon_intra_neon;
_state->opt_vtable.frag_recon_inter=oc_frag_recon_inter_neon;
_state->opt_vtable.frag_recon_inter2=oc_frag_recon_inter2_neon;
_state->opt_vtable.state_frag_recon=oc_state_frag_recon_neon;
_state->opt_vtable.loop_filter_init=oc_loop_filter_init_neon;
_state->opt_vtable.state_loop_filter_frag_rows=
(oc_state_loop_filter_frag_rows_func)oc_loop_filter_frag_rows_neon;
_state->opt_vtable.idct8x8=oc_idct8x8_neon;
# endif
_state->opt_data.dct_fzig_zag=OC_FZIG_ZAG_NEON;
}
# endif
# endif
# endif
}
void oc_state_frag_recon_arm(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){
ogg_uint16_t p;
/*We round this dequant product (and not any of the others) because there's
no iDCT rounding.*/
p=(ogg_uint16_t)(_dct_coeffs[0]*(ogg_int32_t)_dc_quant+15>>5);
oc_idct8x8_1_arm(_dct_coeffs+64,p);
}
else{
/*First, dequantize the DC coefficient.*/
_dct_coeffs[0]=(ogg_int16_t)(_dct_coeffs[0]*(int)_dc_quant);
oc_idct8x8_arm(_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_arm(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_arm(dst,ref+mvoffsets[0],ref+mvoffsets[1],ystride,
_dct_coeffs+64);
}
else oc_frag_recon_inter_arm(dst,ref+mvoffsets[0],ystride,_dct_coeffs+64);
}
}
# if defined(OC_ARM_ASM_MEDIA)
void oc_state_frag_recon_v6(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){
ogg_uint16_t p;
/*We round this dequant product (and not any of the others) because there's
no iDCT rounding.*/
p=(ogg_uint16_t)(_dct_coeffs[0]*(ogg_int32_t)_dc_quant+15>>5);
oc_idct8x8_1_v6(_dct_coeffs+64,p);
}
else{
/*First, dequantize the DC coefficient.*/
_dct_coeffs[0]=(ogg_int16_t)(_dct_coeffs[0]*(int)_dc_quant);
oc_idct8x8_v6(_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_v6(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_v6(dst,ref+mvoffsets[0],ref+mvoffsets[1],ystride,
_dct_coeffs+64);
}
else oc_frag_recon_inter_v6(dst,ref+mvoffsets[0],ystride,_dct_coeffs+64);
}
}
# if defined(OC_ARM_ASM_NEON)
void oc_state_frag_recon_neon(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){
ogg_uint16_t p;
/*We round this dequant product (and not any of the others) because there's
no iDCT rounding.*/
p=(ogg_uint16_t)(_dct_coeffs[0]*(ogg_int32_t)_dc_quant+15>>5);
oc_idct8x8_1_neon(_dct_coeffs+64,p);
}
else{
/*First, dequantize the DC coefficient.*/
_dct_coeffs[0]=(ogg_int16_t)(_dct_coeffs[0]*(int)_dc_quant);
oc_idct8x8_neon(_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_neon(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_neon(dst,ref+mvoffsets[0],ref+mvoffsets[1],ystride,
_dct_coeffs+64);
}
else oc_frag_recon_inter_neon(dst,ref+mvoffsets[0],ystride,_dct_coeffs+64);
}
}
# endif
# endif
#endif
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