/*
* idct_mmx.c
* Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
*
* This file is part of mpeg2dec, a free MPEG-2 video stream decoder.
* See http://libmpeg2.sourceforge.net/ for updates.
*
* mpeg2dec 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 of the License, or
* (at your option) any later version.
*
* mpeg2dec 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#if defined(ARCH_X86) || defined(ARCH_X86_64)
#include <inttypes.h>
#include "mpeg2.h"
#include "attributes.h"
#include "mpeg2_internal.h"
#include "mmx.h"
#define ROW_SHIFT 15
#define COL_SHIFT 6
#define round(bias) ((int)(((bias)+0.5) * (1<<ROW_SHIFT)))
#define rounder(bias) {round (bias), round (bias)}
#define rounder_sse2(bias) {round (bias), round (bias), round (bias), round (bias)}
#if 0
/* C row IDCT - it is just here to document the MMXEXT and MMX versions */
static inline void idct_row (int16_t * row, int offset,
int16_t * table, int32_t * rounder)
{
int C1, C2, C3, C4, C5, C6, C7;
int a0, a1, a2, a3, b0, b1, b2, b3;
row += offset;
C1 = table[1];
C2 = table[2];
C3 = table[3];
C4 = table[4];
C5 = table[5];
C6 = table[6];
C7 = table[7];
a0 = C4*row[0] + C2*row[2] + C4*row[4] + C6*row[6] + *rounder;
a1 = C4*row[0] + C6*row[2] - C4*row[4] - C2*row[6] + *rounder;
a2 = C4*row[0] - C6*row[2] - C4*row[4] + C2*row[6] + *rounder;
a3 = C4*row[0] - C2*row[2] + C4*row[4] - C6*row[6] + *rounder;
b0 = C1*row[1] + C3*row[3] + C5*row[5] + C7*row[7];
b1 = C3*row[1] - C7*row[3] - C1*row[5] - C5*row[7];
b2 = C5*row[1] - C1*row[3] + C7*row[5] + C3*row[7];
b3 = C7*row[1] - C5*row[3] + C3*row[5] - C1*row[7];
row[0] = (a0 + b0) >> ROW_SHIFT;
row[1] = (a1 + b1) >> ROW_SHIFT;
row[2] = (a2 + b2) >> ROW_SHIFT;
row[3] = (a3 + b3) >> ROW_SHIFT;
row[4] = (a3 - b3) >> ROW_SHIFT;
row[5] = (a2 - b2) >> ROW_SHIFT;
row[6] = (a1 - b1) >> ROW_SHIFT;
row[7] = (a0 - b0) >> ROW_SHIFT;
}
#endif
/* SSE2 row IDCT */
#define sse2_table(c1,c2,c3,c4,c5,c6,c7) { c4, c2, c4, c6, \
c4, -c6, c4, -c2, \
c4, c6, -c4, -c2, \
-c4, c2, c4, -c6, \
c1, c3, c3, -c7, \
c5, -c1, c7, -c5, \
c5, c7, -c1, -c5, \
c7, c3, c3, -c1 }
#define SSE2_IDCT_2ROW(table, row1, row2, round1, round2) do { \
/* no scheduling: trust in out of order execution */ \
/* based on Intel AP-945 */ \
/* (http://cache-www.intel.com/cd/00/00/01/76/17680_w_idct.pdf) */ \
\
/* input */ /* 1: row1= x7 x5 x3 x1 x6 x4 x2 x0 */ \
pshufd_r2r (row1, xmm1, 0); /* 1: xmm1= x2 x0 x2 x0 x2 x0 x2 x0 */ \
pmaddwd_m2r (table[0], xmm1); /* 1: xmm1= x2*C + x0*C ... */ \
pshufd_r2r (row1, xmm3, 0xaa); /* 1: xmm3= x3 x1 x3 x1 x3 x1 x3 x1 */ \
pmaddwd_m2r (table[2*8], xmm3); /* 1: xmm3= x3*C + x1*C ... */ \
pshufd_r2r (row1, xmm2, 0x55); /* 1: xmm2= x6 x4 x6 x4 x6 x4 x6 x4 */ \
pshufd_r2r (row1, row1, 0xff); /* 1: row1= x7 x5 x7 x5 x7 x5 x7 x5 */ \
pmaddwd_m2r (table[1*8], xmm2); /* 1: xmm2= x6*C + x4*C ... */ \
paddd_m2r (round1, xmm1); /* 1: xmm1= x2*C + x0*C + round ... */ \
pmaddwd_m2r (table[3*8], row1); /* 1: row1= x7*C + x5*C ... */ \
pshufd_r2r (row2, xmm5, 0); /* 2: */ \
pshufd_r2r (row2, xmm6, 0x55); /* 2: */ \
pmaddwd_m2r (table[0], xmm5); /* 2: */ \
paddd_r2r (xmm2, xmm1); /* 1: xmm1= a[] */ \
movdqa_r2r (xmm1, xmm2); /* 1: xmm2= a[] */ \
pshufd_r2r (row2, xmm7, 0xaa); /* 2: */ \
pmaddwd_m2r (table[1*8], xmm6); /* 2: */ \
paddd_r2r (xmm3, row1); /* 1: row1= b[]= 7*C+5*C+3*C+1*C ... */ \
pshufd_r2r (row2, row2, 0xff); /* 2: */ \
psubd_r2r (row1, xmm2); /* 1: xmm2= a[] - b[] */ \
pmaddwd_m2r (table[2*8], xmm7); /* 2: */ \
paddd_r2r (xmm1, row1); /* 1: row1= a[] + b[] */ \
psrad_i2r (ROW_SHIFT, xmm2); /* 1: xmm2= result 4...7 */ \
paddd_m2r (round2, xmm5); /* 2: */ \
pmaddwd_m2r (table[3*8], row2); /* 2: */ \
paddd_r2r (xmm6, xmm5); /* 2: */ \
movdqa_r2r (xmm5, xmm6); /* 2: */ \
psrad_i2r (ROW_SHIFT, row1); /* 1: row1= result 0...4 */ \
pshufd_r2r (xmm2, xmm2, 0x1b); /* 1: [0 1 2 3] -> [3 2 1 0] */ \
packssdw_r2r (xmm2, row1); /* 1: row1= result[] */ \
paddd_r2r (xmm7, row2); /* 2: */ \
psubd_r2r (row2, xmm6); /* 2: */ \
paddd_r2r (xmm5, row2); /* 2: */ \
psrad_i2r (ROW_SHIFT, xmm6); /* 2: */ \
psrad_i2r (ROW_SHIFT, row2); /* 2: */ \
pshufd_r2r (xmm6, xmm6, 0x1b); /* 2: */ \
packssdw_r2r (xmm6, row2); /* 2: */ \
} while (0)
/* MMXEXT row IDCT */
#define mmxext_table(c1,c2,c3,c4,c5,c6,c7) { c4, c2, -c4, -c2, \
c4, c6, c4, c6, \
c1, c3, -c1, -c5, \
c5, c7, c3, -c7, \
c4, -c6, c4, -c6, \
-c4, c2, c4, -c2, \
c5, -c1, c3, -c1, \
c7, c3, c7, -c5 }
static inline void mmxext_row_head (int16_t * const row, const int offset,
const int16_t * const table)
{
movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */
movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */
movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */
movq_m2r (*table, mm3); /* mm3 = -C2 -C4 C2 C4 */
movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */
movq_m2r (*(table+4), mm4); /* mm4 = C6 C4 C6 C4 */
pmaddwd_r2r (mm0, mm3); /* mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 */
pshufw_r2r (mm2, mm2, 0x4e); /* mm2 = x2 x0 x6 x4 */
}
static inline void mmxext_row (const int16_t * const table,
const int32_t * const rounder)
{
movq_m2r (*(table+8), mm1); /* mm1 = -C5 -C1 C3 C1 */
pmaddwd_r2r (mm2, mm4); /* mm4 = C4*x0+C6*x2 C4*x4+C6*x6 */
pmaddwd_m2r (*(table+16), mm0); /* mm0 = C4*x4-C6*x6 C4*x0-C6*x2 */
pshufw_r2r (mm6, mm6, 0x4e); /* mm6 = x3 x1 x7 x5 */
movq_m2r (*(table+12), mm7); /* mm7 = -C7 C3 C7 C5 */
pmaddwd_r2r (mm5, mm1); /* mm1 = -C1*x5-C5*x7 C1*x1+C3*x3 */
paddd_m2r (*rounder, mm3); /* mm3 += rounder */
pmaddwd_r2r (mm6, mm7); /* mm7 = C3*x1-C7*x3 C5*x5+C7*x7 */
pmaddwd_m2r (*(table+20), mm2); /* mm2 = C4*x0-C2*x2 -C4*x4+C2*x6 */
paddd_r2r (mm4, mm3); /* mm3 = a1 a0 + rounder */
pmaddwd_m2r (*(table+24), mm5); /* mm5 = C3*x5-C1*x7 C5*x1-C1*x3 */
movq_r2r (mm3, mm4); /* mm4 = a1 a0 + rounder */
pmaddwd_m2r (*(table+28), mm6); /* mm6 = C7*x1-C5*x3 C7*x5+C3*x7 */
paddd_r2r (mm7, mm1); /* mm1 = b1 b0 */
paddd_m2r (*rounder, mm0); /* mm0 += rounder */
psubd_r2r (mm1, mm3); /* mm3 = a1-b1 a0-b0 + rounder */
psrad_i2r (ROW_SHIFT, mm3); /* mm3 = y6 y7 */
paddd_r2r (mm4, mm1); /* mm1 = a1+b1 a0+b0 + rounder */
paddd_r2r (mm2, mm0); /* mm0 = a3 a2 + rounder */
psrad_i2r (ROW_SHIFT, mm1); /* mm1 = y1 y0 */
paddd_r2r (mm6, mm5); /* mm5 = b3 b2 */
movq_r2r (mm0, mm4); /* mm4 = a3 a2 + rounder */
paddd_r2r (mm5, mm0); /* mm0 = a3+b3 a2+b2 + rounder */
psubd_r2r (mm5, mm4); /* mm4 = a3-b3 a2-b2 + rounder */
}
static inline void mmxext_row_tail (int16_t * const row, const int store)
{
psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */
psrad_i2r (ROW_SHIFT, mm4); /* mm4 = y4 y5 */
packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */
packssdw_r2r (mm3, mm4); /* mm4 = y6 y7 y4 y5 */
movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */
pshufw_r2r (mm4, mm4, 0xb1); /* mm4 = y7 y6 y5 y4 */
/* slot */
movq_r2m (mm4, *(row+store+4)); /* save y7 y6 y5 y4 */
}
static inline void mmxext_row_mid (int16_t * const row, const int store,
const int offset,
const int16_t * const table)
{
movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */
psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */
movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */
psrad_i2r (ROW_SHIFT, mm4); /* mm4 = y4 y5 */
packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */
movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */
packssdw_r2r (mm3, mm4); /* mm4 = y6 y7 y4 y5 */
movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */
movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */
pshufw_r2r (mm4, mm4, 0xb1); /* mm4 = y7 y6 y5 y4 */
movq_m2r (*table, mm3); /* mm3 = -C2 -C4 C2 C4 */
movq_r2m (mm4, *(row+store+4)); /* save y7 y6 y5 y4 */
pmaddwd_r2r (mm0, mm3); /* mm3 = -C4*x4-C2*x6 C4*x0+C2*x2 */
movq_m2r (*(table+4), mm4); /* mm4 = C6 C4 C6 C4 */
pshufw_r2r (mm2, mm2, 0x4e); /* mm2 = x2 x0 x6 x4 */
}
/* MMX row IDCT */
#define mmx_table(c1,c2,c3,c4,c5,c6,c7) { c4, c2, c4, c6, \
c4, c6, -c4, -c2, \
c1, c3, c3, -c7, \
c5, c7, -c1, -c5, \
c4, -c6, c4, -c2, \
-c4, c2, c4, -c6, \
c5, -c1, c7, -c5, \
c7, c3, c3, -c1 }
static inline void mmx_row_head (int16_t * const row, const int offset,
const int16_t * const table)
{
movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */
movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */
movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */
movq_m2r (*table, mm3); /* mm3 = C6 C4 C2 C4 */
movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */
punpckldq_r2r (mm0, mm0); /* mm0 = x2 x0 x2 x0 */
movq_m2r (*(table+4), mm4); /* mm4 = -C2 -C4 C6 C4 */
pmaddwd_r2r (mm0, mm3); /* mm3 = C4*x0+C6*x2 C4*x0+C2*x2 */
movq_m2r (*(table+8), mm1); /* mm1 = -C7 C3 C3 C1 */
punpckhdq_r2r (mm2, mm2); /* mm2 = x6 x4 x6 x4 */
}
static inline void mmx_row (const int16_t * const table,
const int32_t * const rounder)
{
pmaddwd_r2r (mm2, mm4); /* mm4 = -C4*x4-C2*x6 C4*x4+C6*x6 */
punpckldq_r2r (mm5, mm5); /* mm5 = x3 x1 x3 x1 */
pmaddwd_m2r (*(table+16), mm0); /* mm0 = C4*x0-C2*x2 C4*x0-C6*x2 */
punpckhdq_r2r (mm6, mm6); /* mm6 = x7 x5 x7 x5 */
movq_m2r (*(table+12), mm7); /* mm7 = -C5 -C1 C7 C5 */
pmaddwd_r2r (mm5, mm1); /* mm1 = C3*x1-C7*x3 C1*x1+C3*x3 */
paddd_m2r (*rounder, mm3); /* mm3 += rounder */
pmaddwd_r2r (mm6, mm7); /* mm7 = -C1*x5-C5*x7 C5*x5+C7*x7 */
pmaddwd_m2r (*(table+20), mm2); /* mm2 = C4*x4-C6*x6 -C4*x4+C2*x6 */
paddd_r2r (mm4, mm3); /* mm3 = a1 a0 + rounder */
pmaddwd_m2r (*(table+24), mm5); /* mm5 = C7*x1-C5*x3 C5*x1-C1*x3 */
movq_r2r (mm3, mm4); /* mm4 = a1 a0 + rounder */
pmaddwd_m2r (*(table+28), mm6); /* mm6 = C3*x5-C1*x7 C7*x5+C3*x7 */
paddd_r2r (mm7, mm1); /* mm1 = b1 b0 */
paddd_m2r (*rounder, mm0); /* mm0 += rounder */
psubd_r2r (mm1, mm3); /* mm3 = a1-b1 a0-b0 + rounder */
psrad_i2r (ROW_SHIFT, mm3); /* mm3 = y6 y7 */
paddd_r2r (mm4, mm1); /* mm1 = a1+b1 a0+b0 + rounder */
paddd_r2r (mm2, mm0); /* mm0 = a3 a2 + rounder */
psrad_i2r (ROW_SHIFT, mm1); /* mm1 = y1 y0 */
paddd_r2r (mm6, mm5); /* mm5 = b3 b2 */
movq_r2r (mm0, mm7); /* mm7 = a3 a2 + rounder */
paddd_r2r (mm5, mm0); /* mm0 = a3+b3 a2+b2 + rounder */
psubd_r2r (mm5, mm7); /* mm7 = a3-b3 a2-b2 + rounder */
}
static inline void mmx_row_tail (int16_t * const row, const int store)
{
psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */
psrad_i2r (ROW_SHIFT, mm7); /* mm7 = y4 y5 */
packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */
packssdw_r2r (mm3, mm7); /* mm7 = y6 y7 y4 y5 */
movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */
movq_r2r (mm7, mm4); /* mm4 = y6 y7 y4 y5 */
pslld_i2r (16, mm7); /* mm7 = y7 0 y5 0 */
psrld_i2r (16, mm4); /* mm4 = 0 y6 0 y4 */
por_r2r (mm4, mm7); /* mm7 = y7 y6 y5 y4 */
/* slot */
movq_r2m (mm7, *(row+store+4)); /* save y7 y6 y5 y4 */
}
static inline void mmx_row_mid (int16_t * const row, const int store,
const int offset, const int16_t * const table)
{
movq_m2r (*(row+offset), mm2); /* mm2 = x6 x4 x2 x0 */
psrad_i2r (ROW_SHIFT, mm0); /* mm0 = y3 y2 */
movq_m2r (*(row+offset+4), mm5); /* mm5 = x7 x5 x3 x1 */
psrad_i2r (ROW_SHIFT, mm7); /* mm7 = y4 y5 */
packssdw_r2r (mm0, mm1); /* mm1 = y3 y2 y1 y0 */
movq_r2r (mm5, mm6); /* mm6 = x7 x5 x3 x1 */
packssdw_r2r (mm3, mm7); /* mm7 = y6 y7 y4 y5 */
movq_r2r (mm2, mm0); /* mm0 = x6 x4 x2 x0 */
movq_r2m (mm1, *(row+store)); /* save y3 y2 y1 y0 */
movq_r2r (mm7, mm1); /* mm1 = y6 y7 y4 y5 */
punpckldq_r2r (mm0, mm0); /* mm0 = x2 x0 x2 x0 */
psrld_i2r (16, mm7); /* mm7 = 0 y6 0 y4 */
movq_m2r (*table, mm3); /* mm3 = C6 C4 C2 C4 */
pslld_i2r (16, mm1); /* mm1 = y7 0 y5 0 */
movq_m2r (*(table+4), mm4); /* mm4 = -C2 -C4 C6 C4 */
por_r2r (mm1, mm7); /* mm7 = y7 y6 y5 y4 */
movq_m2r (*(table+8), mm1); /* mm1 = -C7 C3 C3 C1 */
punpckhdq_r2r (mm2, mm2); /* mm2 = x6 x4 x6 x4 */
movq_r2m (mm7, *(row+store+4)); /* save y7 y6 y5 y4 */
pmaddwd_r2r (mm0, mm3); /* mm3 = C4*x0+C6*x2 C4*x0+C2*x2 */
}
#if 0
/* C column IDCT - it is just here to document the MMXEXT and MMX versions */
static inline void idct_col (int16_t * col, int offset)
{
/* multiplication - as implemented on mmx */
#define F(c,x) (((c) * (x)) >> 16)
/* saturation - it helps us handle torture test cases */
#define S(x) (((x)>32767) ? 32767 : ((x)<-32768) ? -32768 : (x))
int16_t x0, x1, x2, x3, x4, x5, x6, x7;
int16_t y0, y1, y2, y3, y4, y5, y6, y7;
int16_t a0, a1, a2, a3, b0, b1, b2, b3;
int16_t u04, v04, u26, v26, u17, v17, u35, v35, u12, v12;
col += offset;
x0 = col[0*8];
x1 = col[1*8];
x2 = col[2*8];
x3 = col[3*8];
x4 = col[4*8];
x5 = col[5*8];
x6 = col[6*8];
x7 = col[7*8];
u04 = S (x0 + x4);
v04 = S (x0 - x4);
u26 = S (F (T2, x6) + x2);
v26 = S (F (T2, x2) - x6);
a0 = S (u04 + u26);
a1 = S (v04 + v26);
a2 = S (v04 - v26);
a3 = S (u04 - u26);
u17 = S (F (T1, x7) + x1);
v17 = S (F (T1, x1) - x7);
u35 = S (F (T3, x5) + x3);
v35 = S (F (T3, x3) - x5);
b0 = S (u17 + u35);
b3 = S (v17 - v35);
u12 = S (u17 - u35);
v12 = S (v17 + v35);
u12 = S (2 * F (C4, u12));
v12 = S (2 * F (C4, v12));
b1 = S (u12 + v12);
b2 = S (u12 - v12);
y0 = S (a0 + b0) >> COL_SHIFT;
y1 = S (a1 + b1) >> COL_SHIFT;
y2 = S (a2 + b2) >> COL_SHIFT;
y3 = S (a3 + b3) >> COL_SHIFT;
y4 = S (a3 - b3) >> COL_SHIFT;
y5 = S (a2 - b2) >> COL_SHIFT;
y6 = S (a1 - b1) >> COL_SHIFT;
y7 = S (a0 - b0) >> COL_SHIFT;
col[0*8] = y0;
col[1*8] = y1;
col[2*8] = y2;
col[3*8] = y3;
col[4*8] = y4;
col[5*8] = y5;
col[6*8] = y6;
col[7*8] = y7;
}
#endif
#define T1 13036
#define T2 27146
#define T3 43790
#define C4 23170
/* SSE2 column IDCT */
static inline void sse2_idct_col (int16_t * const col)
{
/* Almost identical to mmxext version: */
/* just do both 4x8 columns in paraller */
static const short t1_vector[] ATTR_ALIGN(16) = {T1,T1,T1,T1,T1,T1,T1,T1};
static const short t2_vector[] ATTR_ALIGN(16) = {T2,T2,T2,T2,T2,T2,T2,T2};
static const short t3_vector[] ATTR_ALIGN(16) = {T3,T3,T3,T3,T3,T3,T3,T3};
static const short c4_vector[] ATTR_ALIGN(16) = {C4,C4,C4,C4,C4,C4,C4,C4};
#if defined(__x86_64__)
/* INPUT: block in xmm8 ... xmm15 */
movdqa_m2r (*t1_vector, xmm0); /* xmm0 = T1 */
movdqa_r2r (xmm9, xmm1); /* xmm1 = x1 */
movdqa_r2r (xmm0, xmm2); /* xmm2 = T1 */
pmulhw_r2r (xmm1, xmm0); /* xmm0 = T1*x1 */
movdqa_m2r (*t3_vector, xmm5); /* xmm5 = T3 */
pmulhw_r2r (xmm15, xmm2); /* xmm2 = T1*x7 */
movdqa_r2r (xmm5, xmm7); /* xmm7 = T3-1 */
psubsw_r2r (xmm15, xmm0); /* xmm0 = v17 */
movdqa_m2r (*t2_vector, xmm9); /* xmm9 = T2 */
pmulhw_r2r (xmm11, xmm5); /* xmm5 = (T3-1)*x3 */
paddsw_r2r (xmm2, xmm1); /* xmm1 = u17 */
pmulhw_r2r (xmm13, xmm7); /* xmm7 = (T3-1)*x5 */
movdqa_r2r (xmm9, xmm2); /* xmm2 = T2 */
paddsw_r2r (xmm11, xmm5); /* xmm5 = T3*x3 */
pmulhw_r2r (xmm10, xmm9); /* xmm9 = T2*x2 */
paddsw_r2r (xmm13, xmm7); /* xmm7 = T3*x5 */
psubsw_r2r (xmm13, xmm5); /* xmm5 = v35 */
paddsw_r2r (xmm11, xmm7); /* xmm7 = u35 */
movdqa_r2r (xmm0, xmm6); /* xmm6 = v17 */
pmulhw_r2r (xmm14, xmm2); /* xmm2 = T2*x6 */
psubsw_r2r (xmm5, xmm0); /* xmm0 = b3 */
psubsw_r2r (xmm14, xmm9); /* xmm9 = v26 */
paddsw_r2r (xmm6, xmm5); /* xmm5 = v12 */
movdqa_r2r (xmm0, xmm11); /* xmm11 = b3 */
movdqa_r2r (xmm1, xmm6); /* xmm6 = u17 */
paddsw_r2r (xmm10, xmm2); /* xmm2 = u26 */
paddsw_r2r (xmm7, xmm6); /* xmm6 = b0 */
psubsw_r2r (xmm7, xmm1); /* xmm1 = u12 */
movdqa_r2r (xmm1, xmm7); /* xmm7 = u12 */
paddsw_r2r (xmm5, xmm1); /* xmm1 = u12+v12 */
movdqa_m2r (*c4_vector, xmm0); /* xmm0 = C4/2 */
psubsw_r2r (xmm5, xmm7); /* xmm7 = u12-v12 */
movdqa_r2r (xmm6, xmm4); /* xmm4 = b0 */
pmulhw_r2r (xmm0, xmm1); /* xmm1 = b1/2 */
movdqa_r2r (xmm9, xmm6); /* xmm6 = v26 */
pmulhw_r2r (xmm0, xmm7); /* xmm7 = b2/2 */
movdqa_r2r (xmm8, xmm10); /* xmm10 = x0 */
movdqa_r2r (xmm8, xmm0); /* xmm0 = x0 */
psubsw_r2r (xmm12, xmm10); /* xmm10 = v04 */
paddsw_r2r (xmm12, xmm0); /* xmm0 = u04 */
paddsw_r2r (xmm10, xmm9); /* xmm9 = a1 */
movdqa_r2r (xmm0, xmm8); /* xmm8 = u04 */
psubsw_r2r (xmm6, xmm10); /* xmm10 = a2 */
paddsw_r2r (xmm2, xmm8); /* xmm5 = a0 */
paddsw_r2r (xmm1, xmm1); /* xmm1 = b1 */
psubsw_r2r (xmm2, xmm0); /* xmm0 = a3 */
paddsw_r2r (xmm7, xmm7); /* xmm7 = b2 */
movdqa_r2r (xmm10, xmm13); /* xmm13 = a2 */
movdqa_r2r (xmm9, xmm14); /* xmm14 = a1 */
paddsw_r2r (xmm7, xmm10); /* xmm10 = a2+b2 */
psraw_i2r (COL_SHIFT,xmm10); /* xmm10 = y2 */
paddsw_r2r (xmm1, xmm9); /* xmm9 = a1+b1 */
psraw_i2r (COL_SHIFT, xmm9); /* xmm9 = y1 */
psubsw_r2r (xmm1, xmm14); /* xmm14 = a1-b1 */
psubsw_r2r (xmm7, xmm13); /* xmm13 = a2-b2 */
psraw_i2r (COL_SHIFT,xmm14); /* xmm14 = y6 */
movdqa_r2r (xmm8, xmm15); /* xmm15 = a0 */
psraw_i2r (COL_SHIFT,xmm13); /* xmm13 = y5 */
paddsw_r2r (xmm4, xmm8); /* xmm8 = a0+b0 */
psubsw_r2r (xmm4, xmm15); /* xmm15 = a0-b0 */
psraw_i2r (COL_SHIFT, xmm8); /* xmm8 = y0 */
movdqa_r2r (xmm0, xmm12); /* xmm12 = a3 */
psubsw_r2r (xmm11, xmm12); /* xmm12 = a3-b3 */
psraw_i2r (COL_SHIFT,xmm15); /* xmm15 = y7 */
paddsw_r2r (xmm0, xmm11); /* xmm11 = a3+b3 */
psraw_i2r (COL_SHIFT,xmm12); /* xmm12 = y4 */
psraw_i2r (COL_SHIFT,xmm11); /* xmm11 = y3 */
/* OUTPUT: block in xmm8 ... xmm15 */
#else
movdqa_m2r (*t1_vector, xmm0); /* xmm0 = T1 */
movdqa_m2r (*(col+1*8), xmm1); /* xmm1 = x1 */
movdqa_r2r (xmm0, xmm2); /* xmm2 = T1 */
movdqa_m2r (*(col+7*8), xmm4); /* xmm4 = x7 */
pmulhw_r2r (xmm1, xmm0); /* xmm0 = T1*x1 */
movdqa_m2r (*t3_vector, xmm5); /* xmm5 = T3 */
pmulhw_r2r (xmm4, xmm2); /* xmm2 = T1*x7 */
movdqa_m2r (*(col+5*8), xmm6); /* xmm6 = x5 */
movdqa_r2r (xmm5, xmm7); /* xmm7 = T3-1 */
movdqa_m2r (*(col+3*8), xmm3); /* xmm3 = x3 */
psubsw_r2r (xmm4, xmm0); /* xmm0 = v17 */
movdqa_m2r (*t2_vector, xmm4); /* xmm4 = T2 */
pmulhw_r2r (xmm3, xmm5); /* xmm5 = (T3-1)*x3 */
paddsw_r2r (xmm2, xmm1); /* xmm1 = u17 */
pmulhw_r2r (xmm6, xmm7); /* xmm7 = (T3-1)*x5 */
/* slot */
movdqa_r2r (xmm4, xmm2); /* xmm2 = T2 */
paddsw_r2r (xmm3, xmm5); /* xmm5 = T3*x3 */
pmulhw_m2r (*(col+2*8), xmm4); /* xmm4 = T2*x2 */
paddsw_r2r (xmm6, xmm7); /* xmm7 = T3*x5 */
psubsw_r2r (xmm6, xmm5); /* xmm5 = v35 */
paddsw_r2r (xmm3, xmm7); /* xmm7 = u35 */
movdqa_m2r (*(col+6*8), xmm3); /* xmm3 = x6 */
movdqa_r2r (xmm0, xmm6); /* xmm6 = v17 */
pmulhw_r2r (xmm3, xmm2); /* xmm2 = T2*x6 */
psubsw_r2r (xmm5, xmm0); /* xmm0 = b3 */
psubsw_r2r (xmm3, xmm4); /* xmm4 = v26 */
paddsw_r2r (xmm6, xmm5); /* xmm5 = v12 */
movdqa_r2m (xmm0, *(col+3*8)); /* save b3 in scratch0 */
movdqa_r2r (xmm1, xmm6); /* xmm6 = u17 */
paddsw_m2r (*(col+2*8), xmm2); /* xmm2 = u26 */
paddsw_r2r (xmm7, xmm6); /* xmm6 = b0 */
psubsw_r2r (xmm7, xmm1); /* xmm1 = u12 */
movdqa_r2r (xmm1, xmm7); /* xmm7 = u12 */
movdqa_m2r (*(col+0*8), xmm3); /* xmm3 = x0 */
paddsw_r2r (xmm5, xmm1); /* xmm1 = u12+v12 */
movdqa_m2r (*c4_vector, xmm0); /* xmm0 = C4/2 */
psubsw_r2r (xmm5, xmm7); /* xmm7 = u12-v12 */
movdqa_r2m (xmm6, *(col+5*8)); /* save b0 in scratch1 */
pmulhw_r2r (xmm0, xmm1); /* xmm1 = b1/2 */
movdqa_r2r (xmm4, xmm6); /* xmm6 = v26 */
pmulhw_r2r (xmm0, xmm7); /* xmm7 = b2/2 */
movdqa_m2r (*(col+4*8), xmm5); /* xmm5 = x4 */
movdqa_r2r (xmm3, xmm0); /* xmm0 = x0 */
psubsw_r2r (xmm5, xmm3); /* xmm3 = v04 */
paddsw_r2r (xmm5, xmm0); /* xmm0 = u04 */
paddsw_r2r (xmm3, xmm4); /* xmm4 = a1 */
movdqa_r2r (xmm0, xmm5); /* xmm5 = u04 */
psubsw_r2r (xmm6, xmm3); /* xmm3 = a2 */
paddsw_r2r (xmm2, xmm5); /* xmm5 = a0 */
paddsw_r2r (xmm1, xmm1); /* xmm1 = b1 */
psubsw_r2r (xmm2, xmm0); /* xmm0 = a3 */
paddsw_r2r (xmm7, xmm7); /* xmm7 = b2 */
movdqa_r2r (xmm3, xmm2); /* xmm2 = a2 */
movdqa_r2r (xmm4, xmm6); /* xmm6 = a1 */
paddsw_r2r (xmm7, xmm3); /* xmm3 = a2+b2 */
psraw_i2r (COL_SHIFT, xmm3); /* xmm3 = y2 */
paddsw_r2r (xmm1, xmm4); /* xmm4 = a1+b1 */
psraw_i2r (COL_SHIFT, xmm4); /* xmm4 = y1 */
psubsw_r2r (xmm1, xmm6); /* xmm6 = a1-b1 */
movdqa_m2r (*(col+5*8), xmm1); /* xmm1 = b0 */
psubsw_r2r (xmm7, xmm2); /* xmm2 = a2-b2 */
psraw_i2r (COL_SHIFT, xmm6); /* xmm6 = y6 */
movdqa_r2r (xmm5, xmm7); /* xmm7 = a0 */
movdqa_r2m (xmm4, *(col+1*8)); /* save y1 */
psraw_i2r (COL_SHIFT, xmm2); /* xmm2 = y5 */
movdqa_r2m (xmm3, *(col+2*8)); /* save y2 */
paddsw_r2r (xmm1, xmm5); /* xmm5 = a0+b0 */
movdqa_m2r (*(col+3*8), xmm4); /* xmm4 = b3 */
psubsw_r2r (xmm1, xmm7); /* xmm7 = a0-b0 */
psraw_i2r (COL_SHIFT, xmm5); /* xmm5 = y0 */
movdqa_r2r (xmm0, xmm3); /* xmm3 = a3 */
movdqa_r2m (xmm2, *(col+5*8)); /* save y5 */
psubsw_r2r (xmm4, xmm3); /* xmm3 = a3-b3 */
psraw_i2r (COL_SHIFT, xmm7); /* xmm7 = y7 */
paddsw_r2r (xmm0, xmm4); /* xmm4 = a3+b3 */
movdqa_r2m (xmm5, *(col+0*8)); /* save y0 */
psraw_i2r (COL_SHIFT, xmm3); /* xmm3 = y4 */
movdqa_r2m (xmm6, *(col+6*8)); /* save y6 */
psraw_i2r (COL_SHIFT, xmm4); /* xmm4 = y3 */
movdqa_r2m (xmm7, *(col+7*8)); /* save y7 */
movdqa_r2m (xmm3, *(col+4*8)); /* save y4 */
movdqa_r2m (xmm4, *(col+3*8)); /* save y3 */
#endif
}
/* MMX column IDCT */
static inline void idct_col (int16_t * const col, const int offset)
{
static const short t1_vector[] ATTR_ALIGN(8) = {T1,T1,T1,T1};
static const short t2_vector[] ATTR_ALIGN(8) = {T2,T2,T2,T2};
static const short t3_vector[] ATTR_ALIGN(8) = {T3,T3,T3,T3};
static const short c4_vector[] ATTR_ALIGN(8) = {C4,C4,C4,C4};
/* column code adapted from peter gubanov */
/* http://www.elecard.com/peter/idct.shtml */
movq_m2r (*t1_vector, mm0); /* mm0 = T1 */
movq_m2r (*(col+offset+1*8), mm1); /* mm1 = x1 */
movq_r2r (mm0, mm2); /* mm2 = T1 */
movq_m2r (*(col+offset+7*8), mm4); /* mm4 = x7 */
pmulhw_r2r (mm1, mm0); /* mm0 = T1*x1 */
movq_m2r (*t3_vector, mm5); /* mm5 = T3 */
pmulhw_r2r (mm4, mm2); /* mm2 = T1*x7 */
movq_m2r (*(col+offset+5*8), mm6); /* mm6 = x5 */
movq_r2r (mm5, mm7); /* mm7 = T3-1 */
movq_m2r (*(col+offset+3*8), mm3); /* mm3 = x3 */
psubsw_r2r (mm4, mm0); /* mm0 = v17 */
movq_m2r (*t2_vector, mm4); /* mm4 = T2 */
pmulhw_r2r (mm3, mm5); /* mm5 = (T3-1)*x3 */
paddsw_r2r (mm2, mm1); /* mm1 = u17 */
pmulhw_r2r (mm6, mm7); /* mm7 = (T3-1)*x5 */
/* slot */
movq_r2r (mm4, mm2); /* mm2 = T2 */
paddsw_r2r (mm3, mm5); /* mm5 = T3*x3 */
pmulhw_m2r (*(col+offset+2*8), mm4);/* mm4 = T2*x2 */
paddsw_r2r (mm6, mm7); /* mm7 = T3*x5 */
psubsw_r2r (mm6, mm5); /* mm5 = v35 */
paddsw_r2r (mm3, mm7); /* mm7 = u35 */
movq_m2r (*(col+offset+6*8), mm3); /* mm3 = x6 */
movq_r2r (mm0, mm6); /* mm6 = v17 */
pmulhw_r2r (mm3, mm2); /* mm2 = T2*x6 */
psubsw_r2r (mm5, mm0); /* mm0 = b3 */
psubsw_r2r (mm3, mm4); /* mm4 = v26 */
paddsw_r2r (mm6, mm5); /* mm5 = v12 */
movq_r2m (mm0, *(col+offset+3*8)); /* save b3 in scratch0 */
movq_r2r (mm1, mm6); /* mm6 = u17 */
paddsw_m2r (*(col+offset+2*8), mm2);/* mm2 = u26 */
paddsw_r2r (mm7, mm6); /* mm6 = b0 */
psubsw_r2r (mm7, mm1); /* mm1 = u12 */
movq_r2r (mm1, mm7); /* mm7 = u12 */
movq_m2r (*(col+offset+0*8), mm3); /* mm3 = x0 */
paddsw_r2r (mm5, mm1); /* mm1 = u12+v12 */
movq_m2r (*c4_vector, mm0); /* mm0 = C4/2 */
psubsw_r2r (mm5, mm7); /* mm7 = u12-v12 */
movq_r2m (mm6, *(col+offset+5*8)); /* save b0 in scratch1 */
pmulhw_r2r (mm0, mm1); /* mm1 = b1/2 */
movq_r2r (mm4, mm6); /* mm6 = v26 */
pmulhw_r2r (mm0, mm7); /* mm7 = b2/2 */
movq_m2r (*(col+offset+4*8), mm5); /* mm5 = x4 */
movq_r2r (mm3, mm0); /* mm0 = x0 */
psubsw_r2r (mm5, mm3); /* mm3 = v04 */
paddsw_r2r (mm5, mm0); /* mm0 = u04 */
paddsw_r2r (mm3, mm4); /* mm4 = a1 */
movq_r2r (mm0, mm5); /* mm5 = u04 */
psubsw_r2r (mm6, mm3); /* mm3 = a2 */
paddsw_r2r (mm2, mm5); /* mm5 = a0 */
paddsw_r2r (mm1, mm1); /* mm1 = b1 */
psubsw_r2r (mm2, mm0); /* mm0 = a3 */
paddsw_r2r (mm7, mm7); /* mm7 = b2 */
movq_r2r (mm3, mm2); /* mm2 = a2 */
movq_r2r (mm4, mm6); /* mm6 = a1 */
paddsw_r2r (mm7, mm3); /* mm3 = a2+b2 */
psraw_i2r (COL_SHIFT, mm3); /* mm3 = y2 */
paddsw_r2r (mm1, mm4); /* mm4 = a1+b1 */
psraw_i2r (COL_SHIFT, mm4); /* mm4 = y1 */
psubsw_r2r (mm1, mm6); /* mm6 = a1-b1 */
movq_m2r (*(col+offset+5*8), mm1); /* mm1 = b0 */
psubsw_r2r (mm7, mm2); /* mm2 = a2-b2 */
psraw_i2r (COL_SHIFT, mm6); /* mm6 = y6 */
movq_r2r (mm5, mm7); /* mm7 = a0 */
movq_r2m (mm4, *(col+offset+1*8)); /* save y1 */
psraw_i2r (COL_SHIFT, mm2); /* mm2 = y5 */
movq_r2m (mm3, *(col+offset+2*8)); /* save y2 */
paddsw_r2r (mm1, mm5); /* mm5 = a0+b0 */
movq_m2r (*(col+offset+3*8), mm4); /* mm4 = b3 */
psubsw_r2r (mm1, mm7); /* mm7 = a0-b0 */
psraw_i2r (COL_SHIFT, mm5); /* mm5 = y0 */
movq_r2r (mm0, mm3); /* mm3 = a3 */
movq_r2m (mm2, *(col+offset+5*8)); /* save y5 */
psubsw_r2r (mm4, mm3); /* mm3 = a3-b3 */
psraw_i2r (COL_SHIFT, mm7); /* mm7 = y7 */
paddsw_r2r (mm0, mm4); /* mm4 = a3+b3 */
movq_r2m (mm5, *(col+offset+0*8)); /* save y0 */
psraw_i2r (COL_SHIFT, mm3); /* mm3 = y4 */
movq_r2m (mm6, *(col+offset+6*8)); /* save y6 */
psraw_i2r (COL_SHIFT, mm4); /* mm4 = y3 */
movq_r2m (mm7, *(col+offset+7*8)); /* save y7 */
movq_r2m (mm3, *(col+offset+4*8)); /* save y4 */
movq_r2m (mm4, *(col+offset+3*8)); /* save y3 */
}
static const int32_t rounder0[] ATTR_ALIGN(8) =
rounder ((1 << (COL_SHIFT - 1)) - 0.5);
static const int32_t rounder4[] ATTR_ALIGN(8) = rounder (0);
static const int32_t rounder1[] ATTR_ALIGN(8) =
rounder (1.25683487303); /* C1*(C1/C4+C1+C7)/2 */
static const int32_t rounder7[] ATTR_ALIGN(8) =
rounder (-0.25); /* C1*(C7/C4+C7-C1)/2 */
static const int32_t rounder2[] ATTR_ALIGN(8) =
rounder (0.60355339059); /* C2 * (C6+C2)/2 */
static const int32_t rounder6[] ATTR_ALIGN(8) =
rounder (-0.25); /* C2 * (C6-C2)/2 */
static const int32_t rounder3[] ATTR_ALIGN(8) =
rounder (0.087788325588); /* C3*(-C3/C4+C3+C5)/2 */
static const int32_t rounder5[] ATTR_ALIGN(8) =
rounder (-0.441341716183); /* C3*(-C5/C4+C5-C3)/2 */
#define declare_idct(idct,table,idct_row_head,idct_row,idct_row_tail,idct_row_mid) \
static inline void idct (int16_t * const block) \
{ \
static const int16_t table04[] ATTR_ALIGN(16) = \
table (22725, 21407, 19266, 16384, 12873, 8867, 4520); \
static const int16_t table17[] ATTR_ALIGN(16) = \
table (31521, 29692, 26722, 22725, 17855, 12299, 6270); \
static const int16_t table26[] ATTR_ALIGN(16) = \
table (29692, 27969, 25172, 21407, 16819, 11585, 5906); \
static const int16_t table35[] ATTR_ALIGN(16) = \
table (26722, 25172, 22654, 19266, 15137, 10426, 5315); \
\
idct_row_head (block, 0*8, table04); \
idct_row (table04, rounder0); \
idct_row_mid (block, 0*8, 4*8, table04); \
idct_row (table04, rounder4); \
idct_row_mid (block, 4*8, 1*8, table17); \
idct_row (table17, rounder1); \
idct_row_mid (block, 1*8, 7*8, table17); \
idct_row (table17, rounder7); \
idct_row_mid (block, 7*8, 2*8, table26); \
idct_row (table26, rounder2); \
idct_row_mid (block, 2*8, 6*8, table26); \
idct_row (table26, rounder6); \
idct_row_mid (block, 6*8, 3*8, table35); \
idct_row (table35, rounder3); \
idct_row_mid (block, 3*8, 5*8, table35); \
idct_row (table35, rounder5); \
idct_row_tail (block, 5*8); \
\
idct_col (block, 0); \
idct_col (block, 4); \
}
static inline void sse2_idct (int16_t * const block)
{
static const int16_t table04[] ATTR_ALIGN(16) =
sse2_table (22725, 21407, 19266, 16384, 12873, 8867, 4520);
static const int16_t table17[] ATTR_ALIGN(16) =
sse2_table (31521, 29692, 26722, 22725, 17855, 12299, 6270);
static const int16_t table26[] ATTR_ALIGN(16) =
sse2_table (29692, 27969, 25172, 21407, 16819, 11585, 5906);
static const int16_t table35[] ATTR_ALIGN(16) =
sse2_table (26722, 25172, 22654, 19266, 15137, 10426, 5315);
static const int32_t rounder0_128[] ATTR_ALIGN(16) =
rounder_sse2 ((1 << (COL_SHIFT - 1)) - 0.5);
static const int32_t rounder4_128[] ATTR_ALIGN(16) = rounder_sse2 (0);
static const int32_t rounder1_128[] ATTR_ALIGN(16) =
rounder_sse2 (1.25683487303); /* C1*(C1/C4+C1+C7)/2 */
static const int32_t rounder7_128[] ATTR_ALIGN(16) =
rounder_sse2 (-0.25); /* C1*(C7/C4+C7-C1)/2 */
static const int32_t rounder2_128[] ATTR_ALIGN(16) =
rounder_sse2 (0.60355339059); /* C2 * (C6+C2)/2 */
static const int32_t rounder6_128[] ATTR_ALIGN(16) =
rounder_sse2 (-0.25); /* C2 * (C6-C2)/2 */
static const int32_t rounder3_128[] ATTR_ALIGN(16) =
rounder_sse2 (0.087788325588); /* C3*(-C3/C4+C3+C5)/2 */
static const int32_t rounder5_128[] ATTR_ALIGN(16) =
rounder_sse2 (-0.441341716183); /* C3*(-C5/C4+C5-C3)/2 */
#if defined(__x86_64__)
movdqa_m2r (block[0*8], xmm8);
movdqa_m2r (block[4*8], xmm12);
SSE2_IDCT_2ROW (table04, xmm8, xmm12, *rounder0_128, *rounder4_128);
movdqa_m2r (block[1*8], xmm9);
movdqa_m2r (block[7*8], xmm15);
SSE2_IDCT_2ROW (table17, xmm9, xmm15, *rounder1_128, *rounder7_128);
movdqa_m2r (block[2*8], xmm10);
movdqa_m2r (block[6*8], xmm14);
SSE2_IDCT_2ROW (table26, xmm10, xmm14, *rounder2_128, *rounder6_128);
movdqa_m2r (block[3*8], xmm11);
movdqa_m2r (block[5*8], xmm13);
SSE2_IDCT_2ROW (table35, xmm11, xmm13, *rounder3_128, *rounder5_128);
/* OUTPUT: block in xmm8 ... xmm15 */
#else
movdqa_m2r (block[0*8], xmm0);
movdqa_m2r (block[4*8], xmm4);
SSE2_IDCT_2ROW (table04, xmm0, xmm4, *rounder0_128, *rounder4_128);
movdqa_r2m (xmm0, block[0*8]);
movdqa_r2m (xmm4, block[4*8]);
movdqa_m2r (block[1*8], xmm0);
movdqa_m2r (block[7*8], xmm4);
SSE2_IDCT_2ROW (table17, xmm0, xmm4, *rounder1_128, *rounder7_128);
movdqa_r2m (xmm0, block[1*8]);
movdqa_r2m (xmm4, block[7*8]);
movdqa_m2r (block[2*8], xmm0);
movdqa_m2r (block[6*8], xmm4);
SSE2_IDCT_2ROW (table26, xmm0, xmm4, *rounder2_128, *rounder6_128);
movdqa_r2m (xmm0, block[2*8]);
movdqa_r2m (xmm4, block[6*8]);
movdqa_m2r (block[3*8], xmm0);
movdqa_m2r (block[5*8], xmm4);
SSE2_IDCT_2ROW (table35, xmm0, xmm4, *rounder3_128, *rounder5_128);
movdqa_r2m (xmm0, block[3*8]);
movdqa_r2m (xmm4, block[5*8]);
#endif
sse2_idct_col (block);
}
static void sse2_block_copy (int16_t * const block, uint8_t * dest,
const int stride)
{
#if defined(__x86_64__)
/* INPUT: block in xmm8 ... xmm15 */
packuswb_r2r (xmm8, xmm8);
packuswb_r2r (xmm9, xmm9);
movq_r2m (xmm8, *(dest+0*stride));
packuswb_r2r (xmm10, xmm10);
movq_r2m (xmm9, *(dest+1*stride));
packuswb_r2r (xmm11, xmm11);
movq_r2m (xmm10, *(dest+2*stride));
packuswb_r2r (xmm12, xmm12);
movq_r2m (xmm11, *(dest+3*stride));
packuswb_r2r (xmm13, xmm13);
movq_r2m (xmm12, *(dest+4*stride));
packuswb_r2r (xmm14, xmm14);
movq_r2m (xmm13, *(dest+5*stride));
packuswb_r2r (xmm15, xmm15);
movq_r2m (xmm14, *(dest+6*stride));
movq_r2m (xmm15, *(dest+7*stride));
#else
movdqa_m2r (*(block+0*8), xmm0);
movdqa_m2r (*(block+1*8), xmm1);
movdqa_m2r (*(block+2*8), xmm2);
packuswb_r2r (xmm0, xmm0);
movdqa_m2r (*(block+3*8), xmm3);
packuswb_r2r (xmm1, xmm1);
movdqa_m2r (*(block+4*8), xmm4);
packuswb_r2r (xmm2, xmm2);
movdqa_m2r (*(block+5*8), xmm5);
packuswb_r2r (xmm3, xmm3);
movdqa_m2r (*(block+6*8), xmm6);
packuswb_r2r (xmm4, xmm4);
movdqa_m2r (*(block+7*8), xmm7);
movq_r2m (xmm0, *(dest+0*stride));
packuswb_r2r (xmm5, xmm5);
movq_r2m (xmm1, *(dest+1*stride));
packuswb_r2r (xmm6, xmm6);
movq_r2m (xmm2, *(dest+2*stride));
packuswb_r2r (xmm7, xmm7);
movq_r2m (xmm3, *(dest+3*stride));
movq_r2m (xmm4, *(dest+4*stride));
movq_r2m (xmm5, *(dest+5*stride));
movq_r2m (xmm6, *(dest+6*stride));
movq_r2m (xmm7, *(dest+7*stride));
#endif
}
#define COPY_MMX(offset,r0,r1,r2) \
do { \
movq_m2r (*(block+offset), r0); \
dest += stride; \
movq_m2r (*(block+offset+4), r1); \
movq_r2m (r2, *dest); \
packuswb_r2r (r1, r0); \
} while (0)
static inline void block_copy (int16_t * const block, uint8_t * dest,
const int stride)
{
movq_m2r (*(block+0*8), mm0);
movq_m2r (*(block+0*8+4), mm1);
movq_m2r (*(block+1*8), mm2);
packuswb_r2r (mm1, mm0);
movq_m2r (*(block+1*8+4), mm3);
movq_r2m (mm0, *dest);
packuswb_r2r (mm3, mm2);
COPY_MMX (2*8, mm0, mm1, mm2);
COPY_MMX (3*8, mm2, mm3, mm0);
COPY_MMX (4*8, mm0, mm1, mm2);
COPY_MMX (5*8, mm2, mm3, mm0);
COPY_MMX (6*8, mm0, mm1, mm2);
COPY_MMX (7*8, mm2, mm3, mm0);
movq_r2m (mm2, *(dest+stride));
}
#define ADD_SSE2_2ROW(op, block0, block1)\
do { \
movq_m2r (*(dest), xmm1); \
movq_m2r (*(dest+stride), xmm2); \
punpcklbw_r2r (xmm0, xmm1); \
punpcklbw_r2r (xmm0, xmm2); \
paddsw_##op (block0, xmm1); \
paddsw_##op (block1, xmm2); \
packuswb_r2r (xmm1, xmm1); \
packuswb_r2r (xmm2, xmm2); \
movq_r2m (xmm1, *(dest)); \
movq_r2m (xmm2, *(dest+stride)); \
dest += 2*stride; \
} while (0)
static void sse2_block_add (int16_t * const block, uint8_t * dest,
const int stride)
{
pxor_r2r(xmm0, xmm0);
#if defined(__x86_64__)
/* INPUT: block in xmm8 ... xmm15 */
ADD_SSE2_2ROW(r2r, xmm8, xmm9);
ADD_SSE2_2ROW(r2r, xmm10, xmm11);
ADD_SSE2_2ROW(r2r, xmm12, xmm13);
ADD_SSE2_2ROW(r2r, xmm14, xmm15);
#else
ADD_SSE2_2ROW(m2r, *(block+0*8), *(block+1*8));
ADD_SSE2_2ROW(m2r, *(block+2*8), *(block+3*8));
ADD_SSE2_2ROW(m2r, *(block+4*8), *(block+5*8));
ADD_SSE2_2ROW(m2r, *(block+6*8), *(block+7*8));
#endif
}
#define ADD_MMX(offset,r1,r2,r3,r4) \
do { \
movq_m2r (*(dest+2*stride), r1); \
packuswb_r2r (r4, r3); \
movq_r2r (r1, r2); \
dest += stride; \
movq_r2m (r3, *dest); \
punpcklbw_r2r (mm0, r1); \
paddsw_m2r (*(block+offset), r1); \
punpckhbw_r2r (mm0, r2); \
paddsw_m2r (*(block+offset+4), r2); \
} while (0)
static inline void block_add (int16_t * const block, uint8_t * dest,
const int stride)
{
movq_m2r (*dest, mm1);
pxor_r2r (mm0, mm0);
movq_m2r (*(dest+stride), mm3);
movq_r2r (mm1, mm2);
punpcklbw_r2r (mm0, mm1);
movq_r2r (mm3, mm4);
paddsw_m2r (*(block+0*8), mm1);
punpckhbw_r2r (mm0, mm2);
paddsw_m2r (*(block+0*8+4), mm2);
punpcklbw_r2r (mm0, mm3);
paddsw_m2r (*(block+1*8), mm3);
packuswb_r2r (mm2, mm1);
punpckhbw_r2r (mm0, mm4);
movq_r2m (mm1, *dest);
paddsw_m2r (*(block+1*8+4), mm4);
ADD_MMX (2*8, mm1, mm2, mm3, mm4);
ADD_MMX (3*8, mm3, mm4, mm1, mm2);
ADD_MMX (4*8, mm1, mm2, mm3, mm4);
ADD_MMX (5*8, mm3, mm4, mm1, mm2);
ADD_MMX (6*8, mm1, mm2, mm3, mm4);
ADD_MMX (7*8, mm3, mm4, mm1, mm2);
packuswb_r2r (mm4, mm3);
movq_r2m (mm3, *(dest+stride));
}
static inline void sse2_block_zero (int16_t * const block)
{
pxor_r2r (xmm0, xmm0);
movdqa_r2m (xmm0, *(block+0*8));
movdqa_r2m (xmm0, *(block+1*8));
movdqa_r2m (xmm0, *(block+2*8));
movdqa_r2m (xmm0, *(block+3*8));
movdqa_r2m (xmm0, *(block+4*8));
movdqa_r2m (xmm0, *(block+5*8));
movdqa_r2m (xmm0, *(block+6*8));
movdqa_r2m (xmm0, *(block+7*8));
}
static inline void block_zero (int16_t * const block)
{
pxor_r2r (mm0, mm0);
movq_r2m (mm0, *(block+0*4));
movq_r2m (mm0, *(block+1*4));
movq_r2m (mm0, *(block+2*4));
movq_r2m (mm0, *(block+3*4));
movq_r2m (mm0, *(block+4*4));
movq_r2m (mm0, *(block+5*4));
movq_r2m (mm0, *(block+6*4));
movq_r2m (mm0, *(block+7*4));
movq_r2m (mm0, *(block+8*4));
movq_r2m (mm0, *(block+9*4));
movq_r2m (mm0, *(block+10*4));
movq_r2m (mm0, *(block+11*4));
movq_r2m (mm0, *(block+12*4));
movq_r2m (mm0, *(block+13*4));
movq_r2m (mm0, *(block+14*4));
movq_r2m (mm0, *(block+15*4));
}
#define CPU_MMXEXT 0
#define CPU_MMX 1
#define dup4(reg) \
do { \
if (cpu != CPU_MMXEXT) { \
punpcklwd_r2r (reg, reg); \
punpckldq_r2r (reg, reg); \
} else \
pshufw_r2r (reg, reg, 0x00); \
} while (0)
static inline void block_add_DC (int16_t * const block, uint8_t * dest,
const int stride, const int cpu)
{
movd_v2r ((block[0] + 64) >> 7, mm0);
pxor_r2r (mm1, mm1);
movq_m2r (*dest, mm2);
dup4 (mm0);
psubsw_r2r (mm0, mm1);
packuswb_r2r (mm0, mm0);
paddusb_r2r (mm0, mm2);
packuswb_r2r (mm1, mm1);
movq_m2r (*(dest + stride), mm3);
psubusb_r2r (mm1, mm2);
block[0] = 0;
paddusb_r2r (mm0, mm3);
movq_r2m (mm2, *dest);
psubusb_r2r (mm1, mm3);
movq_m2r (*(dest + 2*stride), mm2);
dest += stride;
movq_r2m (mm3, *dest);
paddusb_r2r (mm0, mm2);
movq_m2r (*(dest + 2*stride), mm3);
psubusb_r2r (mm1, mm2);
dest += stride;
paddusb_r2r (mm0, mm3);
movq_r2m (mm2, *dest);
psubusb_r2r (mm1, mm3);
movq_m2r (*(dest + 2*stride), mm2);
dest += stride;
movq_r2m (mm3, *dest);
paddusb_r2r (mm0, mm2);
movq_m2r (*(dest + 2*stride), mm3);
psubusb_r2r (mm1, mm2);
dest += stride;
paddusb_r2r (mm0, mm3);
movq_r2m (mm2, *dest);
psubusb_r2r (mm1, mm3);
movq_m2r (*(dest + 2*stride), mm2);
dest += stride;
movq_r2m (mm3, *dest);
paddusb_r2r (mm0, mm2);
movq_m2r (*(dest + 2*stride), mm3);
psubusb_r2r (mm1, mm2);
block[63] = 0;
paddusb_r2r (mm0, mm3);
movq_r2m (mm2, *(dest + stride));
psubusb_r2r (mm1, mm3);
movq_r2m (mm3, *(dest + 2*stride));
}
void mpeg2_idct_copy_sse2 (int16_t * const block, uint8_t * const dest,
const int stride)
{
sse2_idct (block);
sse2_block_copy (block, dest, stride);
sse2_block_zero (block);
}
void mpeg2_idct_add_sse2 (const int last, int16_t * const block,
uint8_t * const dest, const int stride)
{
if (last != 129 || (block[0] & (7 << 4)) == (4 << 4)) {
sse2_idct (block);
sse2_block_add (block, dest, stride);
sse2_block_zero (block);
} else
block_add_DC (block, dest, stride, CPU_MMXEXT);
}
declare_idct (mmxext_idct, mmxext_table,
mmxext_row_head, mmxext_row, mmxext_row_tail, mmxext_row_mid)
void mpeg2_idct_copy_mmxext (int16_t * const block, uint8_t * const dest,
const int stride)
{
mmxext_idct (block);
block_copy (block, dest, stride);
block_zero (block);
}
void mpeg2_idct_add_mmxext (const int last, int16_t * const block,
uint8_t * const dest, const int stride)
{
if (last != 129 || (block[0] & (7 << 4)) == (4 << 4)) {
mmxext_idct (block);
block_add (block, dest, stride);
block_zero (block);
} else
block_add_DC (block, dest, stride, CPU_MMXEXT);
}
declare_idct (mmx_idct, mmx_table,
mmx_row_head, mmx_row, mmx_row_tail, mmx_row_mid)
void mpeg2_idct_copy_mmx (int16_t * const block, uint8_t * const dest,
const int stride)
{
mmx_idct (block);
block_copy (block, dest, stride);
block_zero (block);
}
void mpeg2_idct_add_mmx (const int last, int16_t * const block,
uint8_t * const dest, const int stride)
{
if (last != 129 || (block[0] & (7 << 4)) == (4 << 4)) {
mmx_idct (block);
block_add (block, dest, stride);
block_zero (block);
} else
block_add_DC (block, dest, stride, CPU_MMX);
}
void mpeg2_idct_mmx_init (void)
{
int i, j;
/* the mmx/mmxext idct uses a reordered input, so we patch scan tables */
for (i = 0; i < 64; i++) {
j = mpeg2_scan_norm[i];
mpeg2_scan_norm[i] = (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2);
j = mpeg2_scan_alt[i];
mpeg2_scan_alt[i] = (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2);
}
}
#endif