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/*
* Copyright (C) 2003-2006 Gabest
* http://www.gabest.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* Based on Intel's AP-942
*
*/
#include "stdafx.h"
#include <inttypes.h>
#include "libmpeg2.h"
#include "attributes.h"
#include "../../../DSUtil/simd.h"
// Intel's SSE2 implementation of iDCT
// AP-945
// http://cache-www.intel.com/cd/00/00/01/76/17680_w_idct.pdf
static const int BITS_INV_ACC=4;
static const int SHIFT_INV_ROW=16-BITS_INV_ACC;
static const int SHIFT_INV_COL=1+BITS_INV_ACC;
static const int RND_INV_ROW =1024*(6-BITS_INV_ACC);
static const int RND_INV_COL =16*(BITS_INV_ACC-3);
static const int RND_INV_CORR =RND_INV_COL-1;
static __align16(const short,M128_round_inv_row[8]) = {RND_INV_ROW, 0, RND_INV_ROW, 0, RND_INV_ROW, 0, RND_INV_ROW, 0};
static __align16(const short,M128_one_corr[8]) = {1,1,1,1,1,1,1,1};
static __align16(const short,M128_round_inv_col[8]) = {RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL, RND_INV_COL};
static __align16(const short,M128_round_inv_corr[8])= {RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR, RND_INV_CORR};
static __align16(const short,M128_tg_1_16[8]) = {13036, 13036, 13036, 13036, 13036, 13036, 13036, 13036}; // tg * (2<<16) + 0.5
static __align16(const short,M128_tg_2_16[8]) = {27146, 27146, 27146, 27146, 27146, 27146, 27146, 27146}; // tg * (2<<16) + 0.5
static __align16(const short,M128_tg_3_16[8]) = {-21746, -21746, -21746, -21746, -21746, -21746, -21746, -21746}; // tg * (2<<16) + 0.5
static __align16(const short,M128_cos_4_16[8]) = {-19195, -19195, -19195, -19195, -19195, -19195, -19195, -19195};// cos * (2<<16) + 0.5
static __align16(const int16_t,M128_tab_i_04[])= {16384, 21407, 16384, 8867, 16384, -8867, 16384, -21407, 16384, 8867, -16384, -21407, -16384, 21407, 16384, -8867, 22725, 19266, 19266, -4520, 12873, -22725, 4520, -12873, 12873, 4520, -22725, -12873, 4520, 19266, 19266, -22725};
static __align16(const int16_t,M128_tab_i_17[])= {22725, 29692, 22725, 12299, 22725, -12299, 22725, -29692, 22725, 12299, -22725, -29692, -22725, 29692, 22725, -12299, 31521, 26722, 26722, -6270, 17855, -31521, 6270, -17855, 17855, 6270, -31521, -17855, 6270, 26722, 26722, -31521};
static __align16(const int16_t,M128_tab_i_26[])= {21407, 27969, 21407, 11585, 21407, -11585, 21407, -27969, 21407, 11585, -21407, -27969, -21407, 27969, 21407, -11585, 29692, 25172, 25172, -5906, 16819, -29692, 5906, -16819, 16819, 5906, -29692, -16819, 5906, 25172, 25172, -29692};
static __align16(const int16_t,M128_tab_i_35[])= {19266, 25172, 19266, 10426, 19266, -10426, 19266, -25172, 19266, 10426, -19266, -25172, -19266, 25172, 19266, -10426, 26722, 22654, 22654, -5315, 15137, -26722, 5315, -15137, 15137, 5315, -26722, -15137, 5315, 22654, 22654, -26722};
static __forceinline void DCT_8_INV_ROW(const uint8_t * const ecx,const uint8_t * const esi,__m128i &xmm0,__m128i &xmm1,__m128i &xmm2,__m128i &xmm3,__m128i &xmm4,__m128i &xmm5,__m128i &xmm6,__m128i &xmm7)
{
xmm0=_mm_shufflelo_epi16(xmm0, 0xD8 );
xmm1=_mm_shuffle_epi32( xmm0, 0 );
pmaddwd (xmm1, esi);
xmm3=_mm_shuffle_epi32( xmm0, 0x55);
xmm0=_mm_shufflehi_epi16( xmm0, 0xD8 );
pmaddwd( xmm3, esi+32 );
xmm2=_mm_shuffle_epi32( xmm0, 0xAA );
xmm0=_mm_shuffle_epi32( xmm0, 0xFF );
pmaddwd( xmm2, esi+16 );
xmm4=_mm_shufflehi_epi16( xmm4, 0xD8 );
paddd (xmm1, M128_round_inv_row);
xmm4=_mm_shufflelo_epi16 (xmm4, 0xD8 );
pmaddwd (xmm0, esi+48 );
xmm5=_mm_shuffle_epi32( xmm4, 0 );
xmm6=_mm_shuffle_epi32( xmm4, 0xAA );
pmaddwd (xmm5, ecx );
paddd (xmm1, xmm2 );
movdqa (xmm2, xmm1 );
xmm7=_mm_shuffle_epi32( xmm4, 0x55 );
pmaddwd (xmm6, ecx+16 );
paddd (xmm0, xmm3 );
xmm4=_mm_shuffle_epi32( xmm4, 0xFF );
psubd (xmm2, xmm0 );
pmaddwd (xmm7, ecx+32 );
paddd (xmm0, xmm1 );
psrad (xmm2, 12 );
paddd (xmm5, M128_round_inv_row);
pmaddwd (xmm4, ecx+48 );
paddd (xmm5, xmm6 );
movdqa (xmm6, xmm5 );
psrad (xmm0, 12 );
xmm2=_mm_shuffle_epi32( xmm2, 0x1B );
packssdw (xmm0, xmm2 );
paddd (xmm4, xmm7 );
psubd (xmm6, xmm4 );
paddd (xmm4, xmm5 );
psrad (xmm6, 12 );
psrad (xmm4, 12 );
xmm6=_mm_shuffle_epi32( xmm6, 0x1B );
packssdw (xmm4, xmm6 );
}
static __forceinline void DCT_8_INV_COL_8(__m128i &src0,__m128i &src1,__m128i &src2,__m128i &src3,__m128i &src4,__m128i &src5,__m128i &src6,__m128i &src7,
__m128i &xmm0,__m128i &xmm1,__m128i &xmm2,__m128i &xmm3,__m128i &xmm4,__m128i &xmm5,__m128i &xmm6,__m128i &xmm7)
{
movdqa( xmm1, M128_tg_3_16 );
movdqa( xmm2, xmm0 );
movdqa( xmm3, src3 );
pmulhw( xmm0, xmm1 );
pmulhw( xmm1, xmm3 );
movdqa( xmm5, M128_tg_1_16 );
movdqa( xmm6, xmm4 );
pmulhw( xmm4, xmm5 );
paddsw( xmm0, xmm2 );
pmulhw( xmm5, src1 );
paddsw( xmm1, xmm3 );
movdqa( xmm7, src6 );
paddsw( xmm0, xmm3 );
movdqa( xmm3, M128_tg_2_16 );
psubsw( xmm2, xmm1 );
pmulhw( xmm7, xmm3 );
movdqa( xmm1, xmm0 );
pmulhw( xmm3, src2 );
psubsw( xmm5, xmm6 );
paddsw( xmm4, src1 );
paddsw( xmm0, xmm4 );
paddsw( xmm0, M128_one_corr );
psubsw( xmm4, xmm1 );
movdqa( xmm6, xmm5 );
psubsw( xmm5, xmm2 );
paddsw( xmm5, M128_one_corr );
paddsw( xmm6, xmm2 );
movdqa( src7, xmm0 );
movdqa( xmm1, xmm4 );
movdqa( xmm0, M128_cos_4_16 );
paddsw( xmm4, xmm5 );
movdqa( xmm2, M128_cos_4_16 );
pmulhw( xmm2, xmm4 );
movdqa( src3, xmm6 );
psubsw( xmm1, xmm5 );
paddsw( xmm7, src2 );
psubsw( xmm3, src6 );
movdqa( xmm6, src0 );
pmulhw( xmm0, xmm1 );
movdqa( xmm5, src4 );
paddsw( xmm5, xmm6 );
psubsw( xmm6, src4 );
paddsw( xmm4, xmm2 );
por ( xmm4, M128_one_corr );
paddsw( xmm0, xmm1 );
por ( xmm0, M128_one_corr );
movdqa( xmm2, xmm5 );
paddsw( xmm5, xmm7 );
movdqa( xmm1, xmm6 );
paddsw( xmm5, M128_round_inv_col );
psubsw( xmm2, xmm7 );
movdqa( xmm7, src7 );
paddsw( xmm6, xmm3 );
paddsw( xmm6, M128_round_inv_col );
paddsw( xmm7, xmm5 );
psraw ( xmm7, SHIFT_INV_COL );
psubsw( xmm1, xmm3 );
paddsw( xmm1, M128_round_inv_corr );
movdqa( xmm3, xmm6 );
paddsw( xmm2, M128_round_inv_corr );
paddsw( xmm6, xmm4 );
movdqa( src0,xmm7 );
psraw (xmm6, SHIFT_INV_COL );
movdqa( xmm7, xmm1 );
paddsw( xmm1, xmm0 );
movdqa( src1, xmm6 );
psraw (xmm1, SHIFT_INV_COL );
movdqa( xmm6, src3 );
psubsw( xmm7, xmm0 );
psraw (xmm7, SHIFT_INV_COL );
movdqa( src2, xmm1 );
psubsw( xmm5, src7 );
psraw (xmm5, SHIFT_INV_COL );
movdqa( src7, xmm5 );
psubsw( xmm3, xmm4 );
paddsw( xmm6, xmm2 );
psubsw( xmm2, src3 );
psraw (xmm6, SHIFT_INV_COL );
psraw (xmm2, SHIFT_INV_COL );
movdqa( src3, xmm6 );
psraw (xmm3, SHIFT_INV_COL );
movdqa( src4, xmm2 );
movdqa( src5, xmm7 );
movdqa( src6, xmm3 );
}
static __forceinline void idct_M128ASM(__m128i &src0,__m128i &src1,__m128i &src2,__m128i &src3,__m128i &src4,__m128i &src5,__m128i &src6,__m128i &src7)
{
__m128i xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7;
movdqa (xmm0, src0);
uint8_t *esi=(uint8_t*)M128_tab_i_04;
movdqa (xmm4, src2);
uint8_t *ecx=(uint8_t*)M128_tab_i_26;
DCT_8_INV_ROW(ecx,esi,xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7);
movdqa (src0, xmm0);
movdqa (src2, xmm4);
movdqa (xmm0, src4);
movdqa (xmm4, src6);
DCT_8_INV_ROW(ecx,esi,xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7);
movdqa (src4, xmm0);
movdqa (src6, xmm4);
movdqa (xmm0, src3);
esi=(uint8_t*)M128_tab_i_35;
movdqa (xmm4, src1);
ecx=(uint8_t*)M128_tab_i_17;
DCT_8_INV_ROW(ecx,esi,xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7);
movdqa (src3, xmm0);
movdqa (src1, xmm4);
movdqa (xmm0, src5);
movdqa (xmm4, src7);
DCT_8_INV_ROW(ecx,esi,xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7);
DCT_8_INV_COL_8(src0,src1,src2,src3,src4,src5,src6,src7,
xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7);
}
void mpeg2_idct_copy_sse2(int16_t* block, uint8_t* dest, const int stride)
{
__m128i &src0=*(__m128i*)(block+0*16/2);
__m128i &src1=*(__m128i*)(block+1*16/2);
__m128i &src2=*(__m128i*)(block+2*16/2);
__m128i &src3=*(__m128i*)(block+3*16/2);
__m128i &src4=*(__m128i*)(block+4*16/2);
__m128i &src5=*(__m128i*)(block+5*16/2);
__m128i &src6=*(__m128i*)(block+6*16/2);
__m128i &src7=*(__m128i*)(block+7*16/2);
idct_M128ASM (src0,src1,src2,src3,src4,src5,src6,src7);
__m128i zero = _mm_setzero_si128();
__m128i r0 = _mm_packus_epi16(_mm_load_si128(&src0), _mm_load_si128(&src1));
__m128i r1 = _mm_packus_epi16(_mm_load_si128(&src2), _mm_load_si128(&src3));
__m128i r2 = _mm_packus_epi16(_mm_load_si128(&src4), _mm_load_si128(&src5));
__m128i r3 = _mm_packus_epi16(_mm_load_si128(&src6), _mm_load_si128(&src7));
_mm_storel_pi((__m64*)&dest[0*stride], *(__m128*)&r0);
_mm_storeh_pi((__m64*)&dest[1*stride], *(__m128*)&r0);
_mm_storel_pi((__m64*)&dest[2*stride], *(__m128*)&r1);
_mm_storeh_pi((__m64*)&dest[3*stride], *(__m128*)&r1);
_mm_storel_pi((__m64*)&dest[4*stride], *(__m128*)&r2);
_mm_storeh_pi((__m64*)&dest[5*stride], *(__m128*)&r2);
_mm_storel_pi((__m64*)&dest[6*stride], *(__m128*)&r3);
_mm_storeh_pi((__m64*)&dest[7*stride], *(__m128*)&r3);
_mm_store_si128(&src0, zero);
_mm_store_si128(&src1, zero);
_mm_store_si128(&src2, zero);
_mm_store_si128(&src3, zero);
_mm_store_si128(&src4, zero);
_mm_store_si128(&src5, zero);
_mm_store_si128(&src6, zero);
_mm_store_si128(&src7, zero);
}
void mpeg2_idct_add_sse2(int,int16_t* block, uint8_t* dest, const int stride)
{
__m128i &src0=*(__m128i*)(block+0*16/2);
__m128i &src1=*(__m128i*)(block+1*16/2);
__m128i &src2=*(__m128i*)(block+2*16/2);
__m128i &src3=*(__m128i*)(block+3*16/2);
__m128i &src4=*(__m128i*)(block+4*16/2);
__m128i &src5=*(__m128i*)(block+5*16/2);
__m128i &src6=*(__m128i*)(block+6*16/2);
__m128i &src7=*(__m128i*)(block+7*16/2);
idct_M128ASM (src0,src1,src2,src3,src4,src5,src6,src7);
__m128i zero = _mm_setzero_si128();
__m128i r0 = _mm_load_si128(&src0);
__m128i r1 = _mm_load_si128(&src1);
__m128i r2 = _mm_load_si128(&src2);
__m128i r3 = _mm_load_si128(&src3);
__m128i r4 = _mm_load_si128(&src4);
__m128i r5 = _mm_load_si128(&src5);
__m128i r6 = _mm_load_si128(&src6);
__m128i r7 = _mm_load_si128(&src7);
__m128 q0 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[0*stride]);
__m128 q1 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[1*stride]);
__m128 q2 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[2*stride]);
__m128 q3 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[3*stride]);
__m128 q4 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[4*stride]);
__m128 q5 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[5*stride]);
__m128 q6 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[6*stride]);
__m128 q7 = _mm_loadl_pi(*(__m128*)&zero, (__m64*)&dest[7*stride]);
r0 = _mm_adds_epi16(r0, _mm_unpacklo_epi8(*(__m128i*)&q0, zero));
r1 = _mm_adds_epi16(r1, _mm_unpacklo_epi8(*(__m128i*)&q1, zero));
r2 = _mm_adds_epi16(r2, _mm_unpacklo_epi8(*(__m128i*)&q2, zero));
r3 = _mm_adds_epi16(r3, _mm_unpacklo_epi8(*(__m128i*)&q3, zero));
r4 = _mm_adds_epi16(r4, _mm_unpacklo_epi8(*(__m128i*)&q4, zero));
r5 = _mm_adds_epi16(r5, _mm_unpacklo_epi8(*(__m128i*)&q5, zero));
r6 = _mm_adds_epi16(r6, _mm_unpacklo_epi8(*(__m128i*)&q6, zero));
r7 = _mm_adds_epi16(r7, _mm_unpacklo_epi8(*(__m128i*)&q7, zero));
r0 = _mm_packus_epi16(r0, r1);
r1 = _mm_packus_epi16(r2, r3);
r2 = _mm_packus_epi16(r4, r5);
r3 = _mm_packus_epi16(r6, r7);
_mm_storel_pi((__m64*)&dest[0*stride], *(__m128*)&r0);
_mm_storeh_pi((__m64*)&dest[1*stride], *(__m128*)&r0);
_mm_storel_pi((__m64*)&dest[2*stride], *(__m128*)&r1);
_mm_storeh_pi((__m64*)&dest[3*stride], *(__m128*)&r1);
_mm_storel_pi((__m64*)&dest[4*stride], *(__m128*)&r2);
_mm_storeh_pi((__m64*)&dest[5*stride], *(__m128*)&r2);
_mm_storel_pi((__m64*)&dest[6*stride], *(__m128*)&r3);
_mm_storeh_pi((__m64*)&dest[7*stride], *(__m128*)&r3);
_mm_store_si128(&src0, zero);
_mm_store_si128(&src1, zero);
_mm_store_si128(&src2, zero);
_mm_store_si128(&src3, zero);
_mm_store_si128(&src4, zero);
_mm_store_si128(&src5, zero);
_mm_store_si128(&src6, zero);
_mm_store_si128(&src7, zero);
}
void mpeg2_idct_init_sse2()
{
}
|
