583 lines
18 KiB
C
583 lines
18 KiB
C
/*
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* MMX optimized forward DCT
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* The gcc porting is Copyright (c) 2001 Fabrice Bellard.
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* cleanup/optimizations are Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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* SSE2 optimization is Copyright (c) 2004 Denes Balatoni.
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*
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* from fdctam32.c - AP922 MMX(3D-Now) forward-DCT
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*
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* Intel Application Note AP-922 - fast, precise implementation of DCT
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* http://developer.intel.com/vtune/cbts/appnotes.htm
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*
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* Also of inspiration:
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* a page about fdct at http://www.geocities.com/ssavekar/dct.htm
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* Skal's fdct at http://skal.planet-d.net/coding/dct.html
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/common.h"
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#include "libavutil/x86_cpu.h"
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#include "libavcodec/dsputil.h"
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//////////////////////////////////////////////////////////////////////
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//
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// constants for the forward DCT
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// -----------------------------
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//
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// Be sure to check that your compiler is aligning all constants to QWORD
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// (8-byte) memory boundaries! Otherwise the unaligned memory access will
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// severely stall MMX execution.
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//
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//////////////////////////////////////////////////////////////////////
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#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy
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#define SHIFT_FRW_COL BITS_FRW_ACC
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#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17 - 3)
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#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
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//#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
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#define X8(x) x,x,x,x,x,x,x,x
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//concatenated table, for forward DCT transformation
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DECLARE_ALIGNED(16, static const int16_t, fdct_tg_all_16)[24] = {
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X8(13036), // tg * (2<<16) + 0.5
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X8(27146), // tg * (2<<16) + 0.5
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X8(-21746) // tg * (2<<16) + 0.5
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};
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DECLARE_ALIGNED(16, static const int16_t, ocos_4_16)[8] = {
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X8(23170) //cos * (2<<15) + 0.5
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};
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DECLARE_ALIGNED(16, static const int16_t, fdct_one_corr)[8] = { X8(1) };
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DECLARE_ALIGNED(8, static const int32_t, fdct_r_row)[2] = {RND_FRW_ROW, RND_FRW_ROW };
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static struct
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{
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DECLARE_ALIGNED(16, const int32_t, fdct_r_row_sse2)[4];
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} fdct_r_row_sse2 =
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{{
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RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW
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}};
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//DECLARE_ALIGNED(16, static const long, fdct_r_row_sse2)[4] = {RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW, RND_FRW_ROW};
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DECLARE_ALIGNED(8, static const int16_t, tab_frw_01234567)[] = { // forward_dct coeff table
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16384, 16384, 22725, 19266,
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16384, 16384, 12873, 4520,
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21407, 8867, 19266, -4520,
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-8867, -21407, -22725, -12873,
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16384, -16384, 12873, -22725,
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-16384, 16384, 4520, 19266,
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8867, -21407, 4520, -12873,
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21407, -8867, 19266, -22725,
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22725, 22725, 31521, 26722,
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22725, 22725, 17855, 6270,
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29692, 12299, 26722, -6270,
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-12299, -29692, -31521, -17855,
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22725, -22725, 17855, -31521,
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-22725, 22725, 6270, 26722,
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12299, -29692, 6270, -17855,
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29692, -12299, 26722, -31521,
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21407, 21407, 29692, 25172,
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21407, 21407, 16819, 5906,
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27969, 11585, 25172, -5906,
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-11585, -27969, -29692, -16819,
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21407, -21407, 16819, -29692,
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-21407, 21407, 5906, 25172,
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11585, -27969, 5906, -16819,
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27969, -11585, 25172, -29692,
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19266, 19266, 26722, 22654,
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19266, 19266, 15137, 5315,
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25172, 10426, 22654, -5315,
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-10426, -25172, -26722, -15137,
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19266, -19266, 15137, -26722,
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-19266, 19266, 5315, 22654,
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10426, -25172, 5315, -15137,
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25172, -10426, 22654, -26722,
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16384, 16384, 22725, 19266,
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16384, 16384, 12873, 4520,
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21407, 8867, 19266, -4520,
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-8867, -21407, -22725, -12873,
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16384, -16384, 12873, -22725,
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-16384, 16384, 4520, 19266,
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8867, -21407, 4520, -12873,
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21407, -8867, 19266, -22725,
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19266, 19266, 26722, 22654,
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19266, 19266, 15137, 5315,
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25172, 10426, 22654, -5315,
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-10426, -25172, -26722, -15137,
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19266, -19266, 15137, -26722,
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-19266, 19266, 5315, 22654,
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10426, -25172, 5315, -15137,
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25172, -10426, 22654, -26722,
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21407, 21407, 29692, 25172,
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21407, 21407, 16819, 5906,
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27969, 11585, 25172, -5906,
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-11585, -27969, -29692, -16819,
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21407, -21407, 16819, -29692,
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-21407, 21407, 5906, 25172,
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11585, -27969, 5906, -16819,
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27969, -11585, 25172, -29692,
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22725, 22725, 31521, 26722,
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22725, 22725, 17855, 6270,
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29692, 12299, 26722, -6270,
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-12299, -29692, -31521, -17855,
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22725, -22725, 17855, -31521,
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-22725, 22725, 6270, 26722,
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12299, -29692, 6270, -17855,
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29692, -12299, 26722, -31521,
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};
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static struct
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{
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DECLARE_ALIGNED(16, const int16_t, tab_frw_01234567_sse2)[256];
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} tab_frw_01234567_sse2 =
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{{
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//DECLARE_ALIGNED(16, static const int16_t, tab_frw_01234567_sse2)[] = { // forward_dct coeff table
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#define TABLE_SSE2 C4, C4, C1, C3, -C6, -C2, -C1, -C5, \
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C4, C4, C5, C7, C2, C6, C3, -C7, \
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-C4, C4, C7, C3, C6, -C2, C7, -C5, \
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C4, -C4, C5, -C1, C2, -C6, C3, -C1,
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// c1..c7 * cos(pi/4) * 2^15
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#define C1 22725
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#define C2 21407
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#define C3 19266
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#define C4 16384
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#define C5 12873
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#define C6 8867
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#define C7 4520
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 31521
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#define C2 29692
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#define C3 26722
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#define C4 22725
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#define C5 17855
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#define C6 12299
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#define C7 6270
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 29692
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#define C2 27969
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#define C3 25172
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#define C4 21407
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#define C5 16819
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#define C6 11585
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#define C7 5906
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 26722
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#define C2 25172
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#define C3 22654
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#define C4 19266
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#define C5 15137
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#define C6 10426
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#define C7 5315
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 22725
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#define C2 21407
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#define C3 19266
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#define C4 16384
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#define C5 12873
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#define C6 8867
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#define C7 4520
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 26722
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#define C2 25172
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#define C3 22654
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#define C4 19266
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#define C5 15137
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#define C6 10426
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#define C7 5315
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 29692
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#define C2 27969
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#define C3 25172
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#define C4 21407
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#define C5 16819
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#define C6 11585
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#define C7 5906
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TABLE_SSE2
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#undef C1
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#undef C2
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#undef C3
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#undef C4
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#undef C5
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#undef C6
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#undef C7
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#define C1 31521
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#define C2 29692
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#define C3 26722
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#define C4 22725
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#define C5 17855
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#define C6 12299
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#define C7 6270
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TABLE_SSE2
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}};
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#define S(s) AV_TOSTRING(s) //AV_STRINGIFY is too long
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#define FDCT_COL(cpu, mm, mov)\
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static av_always_inline void fdct_col_##cpu(const int16_t *in, int16_t *out, int offset)\
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{\
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__asm__ volatile (\
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#mov" 16(%0), %%"#mm"0 \n\t" \
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#mov" 96(%0), %%"#mm"1 \n\t" \
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#mov" %%"#mm"0, %%"#mm"2 \n\t" \
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#mov" 32(%0), %%"#mm"3 \n\t" \
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"paddsw %%"#mm"1, %%"#mm"0 \n\t" \
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#mov" 80(%0), %%"#mm"4 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"0 \n\t" \
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#mov" (%0), %%"#mm"5 \n\t" \
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"paddsw %%"#mm"3, %%"#mm"4 \n\t" \
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"paddsw 112(%0), %%"#mm"5 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"4 \n\t" \
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#mov" %%"#mm"0, %%"#mm"6 \n\t" \
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"psubsw %%"#mm"1, %%"#mm"2 \n\t" \
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#mov" 16(%1), %%"#mm"1 \n\t" \
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"psubsw %%"#mm"4, %%"#mm"0 \n\t" \
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#mov" 48(%0), %%"#mm"7 \n\t" \
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"pmulhw %%"#mm"0, %%"#mm"1 \n\t" \
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"paddsw 64(%0), %%"#mm"7 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"5 \n\t" \
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"paddsw %%"#mm"4, %%"#mm"6 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"7 \n\t" \
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#mov" %%"#mm"5, %%"#mm"4 \n\t" \
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"psubsw %%"#mm"7, %%"#mm"5 \n\t" \
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"paddsw %%"#mm"5, %%"#mm"1 \n\t" \
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"paddsw %%"#mm"7, %%"#mm"4 \n\t" \
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"por (%2), %%"#mm"1 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)"+1, %%"#mm"2 \n\t" \
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"pmulhw 16(%1), %%"#mm"5 \n\t" \
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#mov" %%"#mm"4, %%"#mm"7 \n\t" \
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"psubsw 80(%0), %%"#mm"3 \n\t" \
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"psubsw %%"#mm"6, %%"#mm"4 \n\t" \
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#mov" %%"#mm"1, 32(%3) \n\t" \
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"paddsw %%"#mm"6, %%"#mm"7 \n\t" \
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#mov" 48(%0), %%"#mm"1 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)"+1, %%"#mm"3 \n\t" \
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"psubsw 64(%0), %%"#mm"1 \n\t" \
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#mov" %%"#mm"2, %%"#mm"6 \n\t" \
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#mov" %%"#mm"4, 64(%3) \n\t" \
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"paddsw %%"#mm"3, %%"#mm"2 \n\t" \
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"pmulhw (%4), %%"#mm"2 \n\t" \
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"psubsw %%"#mm"3, %%"#mm"6 \n\t" \
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"pmulhw (%4), %%"#mm"6 \n\t" \
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"psubsw %%"#mm"0, %%"#mm"5 \n\t" \
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"por (%2), %%"#mm"5 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"1 \n\t" \
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"por (%2), %%"#mm"2 \n\t" \
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#mov" %%"#mm"1, %%"#mm"4 \n\t" \
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#mov" (%0), %%"#mm"3 \n\t" \
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"paddsw %%"#mm"6, %%"#mm"1 \n\t" \
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"psubsw 112(%0), %%"#mm"3 \n\t" \
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"psubsw %%"#mm"6, %%"#mm"4 \n\t" \
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#mov" (%1), %%"#mm"0 \n\t" \
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"psllw $"S(SHIFT_FRW_COL)", %%"#mm"3 \n\t" \
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#mov" 32(%1), %%"#mm"6 \n\t" \
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"pmulhw %%"#mm"1, %%"#mm"0 \n\t" \
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#mov" %%"#mm"7, (%3) \n\t" \
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"pmulhw %%"#mm"4, %%"#mm"6 \n\t" \
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#mov" %%"#mm"5, 96(%3) \n\t" \
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#mov" %%"#mm"3, %%"#mm"7 \n\t" \
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#mov" 32(%1), %%"#mm"5 \n\t" \
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"psubsw %%"#mm"2, %%"#mm"7 \n\t" \
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"paddsw %%"#mm"2, %%"#mm"3 \n\t" \
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"pmulhw %%"#mm"7, %%"#mm"5 \n\t" \
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"paddsw %%"#mm"3, %%"#mm"0 \n\t" \
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"paddsw %%"#mm"4, %%"#mm"6 \n\t" \
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"pmulhw (%1), %%"#mm"3 \n\t" \
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"por (%2), %%"#mm"0 \n\t" \
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"paddsw %%"#mm"7, %%"#mm"5 \n\t" \
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"psubsw %%"#mm"6, %%"#mm"7 \n\t" \
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#mov" %%"#mm"0, 16(%3) \n\t" \
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"paddsw %%"#mm"4, %%"#mm"5 \n\t" \
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#mov" %%"#mm"7, 48(%3) \n\t" \
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"psubsw %%"#mm"1, %%"#mm"3 \n\t" \
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#mov" %%"#mm"5, 80(%3) \n\t" \
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#mov" %%"#mm"3, 112(%3) \n\t" \
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: \
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: "r" (in + offset), "r" (fdct_tg_all_16), "r" (fdct_one_corr), \
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"r" (out + offset), "r" (ocos_4_16)); \
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}
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FDCT_COL(mmx, mm, movq)
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FDCT_COL(sse2, xmm, movdqa)
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static av_always_inline void fdct_row_sse2(const int16_t *in, int16_t *out)
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{
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__asm__ volatile(
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#define FDCT_ROW_SSE2_H1(i,t) \
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"movq " #i "(%0), %%xmm2 \n\t" \
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"movq " #i "+8(%0), %%xmm0 \n\t" \
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"movdqa " #t "+32(%1), %%xmm3 \n\t" \
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"movdqa " #t "+48(%1), %%xmm7 \n\t" \
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"movdqa " #t "(%1), %%xmm4 \n\t" \
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"movdqa " #t "+16(%1), %%xmm5 \n\t"
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#define FDCT_ROW_SSE2_H2(i,t) \
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"movq " #i "(%0), %%xmm2 \n\t" \
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"movq " #i "+8(%0), %%xmm0 \n\t" \
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"movdqa " #t "+32(%1), %%xmm3 \n\t" \
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"movdqa " #t "+48(%1), %%xmm7 \n\t"
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#define FDCT_ROW_SSE2(i) \
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"movq %%xmm2, %%xmm1 \n\t" \
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"pshuflw $27, %%xmm0, %%xmm0 \n\t" \
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"paddsw %%xmm0, %%xmm1 \n\t" \
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"psubsw %%xmm0, %%xmm2 \n\t" \
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"punpckldq %%xmm2, %%xmm1 \n\t" \
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"pshufd $78, %%xmm1, %%xmm2 \n\t" \
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"pmaddwd %%xmm2, %%xmm3 \n\t" \
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"pmaddwd %%xmm1, %%xmm7 \n\t" \
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"pmaddwd %%xmm5, %%xmm2 \n\t" \
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"pmaddwd %%xmm4, %%xmm1 \n\t" \
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"paddd %%xmm7, %%xmm3 \n\t" \
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"paddd %%xmm2, %%xmm1 \n\t" \
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"paddd %%xmm6, %%xmm3 \n\t" \
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"paddd %%xmm6, %%xmm1 \n\t" \
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"psrad %3, %%xmm3 \n\t" \
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|
"psrad %3, %%xmm1 \n\t" \
|
|
"packssdw %%xmm3, %%xmm1 \n\t" \
|
|
"movdqa %%xmm1, " #i "(%4) \n\t"
|
|
|
|
"movdqa (%2), %%xmm6 \n\t"
|
|
FDCT_ROW_SSE2_H1(0,0)
|
|
FDCT_ROW_SSE2(0)
|
|
FDCT_ROW_SSE2_H2(64,0)
|
|
FDCT_ROW_SSE2(64)
|
|
|
|
FDCT_ROW_SSE2_H1(16,64)
|
|
FDCT_ROW_SSE2(16)
|
|
FDCT_ROW_SSE2_H2(112,64)
|
|
FDCT_ROW_SSE2(112)
|
|
|
|
FDCT_ROW_SSE2_H1(32,128)
|
|
FDCT_ROW_SSE2(32)
|
|
FDCT_ROW_SSE2_H2(96,128)
|
|
FDCT_ROW_SSE2(96)
|
|
|
|
FDCT_ROW_SSE2_H1(48,192)
|
|
FDCT_ROW_SSE2(48)
|
|
FDCT_ROW_SSE2_H2(80,192)
|
|
FDCT_ROW_SSE2(80)
|
|
:
|
|
: "r" (in), "r" (tab_frw_01234567_sse2.tab_frw_01234567_sse2),
|
|
"r" (fdct_r_row_sse2.fdct_r_row_sse2), "i" (SHIFT_FRW_ROW), "r" (out)
|
|
XMM_CLOBBERS_ONLY("%xmm0", "%xmm1", "%xmm2", "%xmm3",
|
|
"%xmm4", "%xmm5", "%xmm6", "%xmm7")
|
|
);
|
|
}
|
|
|
|
static av_always_inline void fdct_row_mmx2(const int16_t *in, int16_t *out, const int16_t *table)
|
|
{
|
|
__asm__ volatile (
|
|
"pshufw $0x1B, 8(%0), %%mm5 \n\t"
|
|
"movq (%0), %%mm0 \n\t"
|
|
"movq %%mm0, %%mm1 \n\t"
|
|
"paddsw %%mm5, %%mm0 \n\t"
|
|
"psubsw %%mm5, %%mm1 \n\t"
|
|
"movq %%mm0, %%mm2 \n\t"
|
|
"punpckldq %%mm1, %%mm0 \n\t"
|
|
"punpckhdq %%mm1, %%mm2 \n\t"
|
|
"movq (%1), %%mm1 \n\t"
|
|
"movq 8(%1), %%mm3 \n\t"
|
|
"movq 16(%1), %%mm4 \n\t"
|
|
"movq 24(%1), %%mm5 \n\t"
|
|
"movq 32(%1), %%mm6 \n\t"
|
|
"movq 40(%1), %%mm7 \n\t"
|
|
"pmaddwd %%mm0, %%mm1 \n\t"
|
|
"pmaddwd %%mm2, %%mm3 \n\t"
|
|
"pmaddwd %%mm0, %%mm4 \n\t"
|
|
"pmaddwd %%mm2, %%mm5 \n\t"
|
|
"pmaddwd %%mm0, %%mm6 \n\t"
|
|
"pmaddwd %%mm2, %%mm7 \n\t"
|
|
"pmaddwd 48(%1), %%mm0 \n\t"
|
|
"pmaddwd 56(%1), %%mm2 \n\t"
|
|
"paddd %%mm1, %%mm3 \n\t"
|
|
"paddd %%mm4, %%mm5 \n\t"
|
|
"paddd %%mm6, %%mm7 \n\t"
|
|
"paddd %%mm0, %%mm2 \n\t"
|
|
"movq (%2), %%mm0 \n\t"
|
|
"paddd %%mm0, %%mm3 \n\t"
|
|
"paddd %%mm0, %%mm5 \n\t"
|
|
"paddd %%mm0, %%mm7 \n\t"
|
|
"paddd %%mm0, %%mm2 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
|
|
"packssdw %%mm5, %%mm3 \n\t"
|
|
"packssdw %%mm2, %%mm7 \n\t"
|
|
"movq %%mm3, (%3) \n\t"
|
|
"movq %%mm7, 8(%3) \n\t"
|
|
:
|
|
: "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
|
|
}
|
|
|
|
static av_always_inline void fdct_row_mmx(const int16_t *in, int16_t *out, const int16_t *table)
|
|
{
|
|
//FIXME reorder (I do not have an old MMX-only CPU here to benchmark ...)
|
|
__asm__ volatile(
|
|
"movd 12(%0), %%mm1 \n\t"
|
|
"punpcklwd 8(%0), %%mm1 \n\t"
|
|
"movq %%mm1, %%mm2 \n\t"
|
|
"psrlq $0x20, %%mm1 \n\t"
|
|
"movq 0(%0), %%mm0 \n\t"
|
|
"punpcklwd %%mm2, %%mm1 \n\t"
|
|
"movq %%mm0, %%mm5 \n\t"
|
|
"paddsw %%mm1, %%mm0 \n\t"
|
|
"psubsw %%mm1, %%mm5 \n\t"
|
|
"movq %%mm0, %%mm2 \n\t"
|
|
"punpckldq %%mm5, %%mm0 \n\t"
|
|
"punpckhdq %%mm5, %%mm2 \n\t"
|
|
"movq 0(%1), %%mm1 \n\t"
|
|
"movq 8(%1), %%mm3 \n\t"
|
|
"movq 16(%1), %%mm4 \n\t"
|
|
"movq 24(%1), %%mm5 \n\t"
|
|
"movq 32(%1), %%mm6 \n\t"
|
|
"movq 40(%1), %%mm7 \n\t"
|
|
"pmaddwd %%mm0, %%mm1 \n\t"
|
|
"pmaddwd %%mm2, %%mm3 \n\t"
|
|
"pmaddwd %%mm0, %%mm4 \n\t"
|
|
"pmaddwd %%mm2, %%mm5 \n\t"
|
|
"pmaddwd %%mm0, %%mm6 \n\t"
|
|
"pmaddwd %%mm2, %%mm7 \n\t"
|
|
"pmaddwd 48(%1), %%mm0 \n\t"
|
|
"pmaddwd 56(%1), %%mm2 \n\t"
|
|
"paddd %%mm1, %%mm3 \n\t"
|
|
"paddd %%mm4, %%mm5 \n\t"
|
|
"paddd %%mm6, %%mm7 \n\t"
|
|
"paddd %%mm0, %%mm2 \n\t"
|
|
"movq (%2), %%mm0 \n\t"
|
|
"paddd %%mm0, %%mm3 \n\t"
|
|
"paddd %%mm0, %%mm5 \n\t"
|
|
"paddd %%mm0, %%mm7 \n\t"
|
|
"paddd %%mm0, %%mm2 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm3 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm5 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm7 \n\t"
|
|
"psrad $"S(SHIFT_FRW_ROW)", %%mm2 \n\t"
|
|
"packssdw %%mm5, %%mm3 \n\t"
|
|
"packssdw %%mm2, %%mm7 \n\t"
|
|
"movq %%mm3, 0(%3) \n\t"
|
|
"movq %%mm7, 8(%3) \n\t"
|
|
:
|
|
: "r" (in), "r" (table), "r" (fdct_r_row), "r" (out));
|
|
}
|
|
|
|
void ff_fdct_mmx(int16_t *block)
|
|
{
|
|
DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
|
|
int16_t * block1= (int16_t*)align_tmp;
|
|
const int16_t *table= tab_frw_01234567;
|
|
int i;
|
|
|
|
fdct_col_mmx(block, block1, 0);
|
|
fdct_col_mmx(block, block1, 4);
|
|
|
|
for(i=8;i>0;i--) {
|
|
fdct_row_mmx(block1, block, table);
|
|
block1 += 8;
|
|
table += 32;
|
|
block += 8;
|
|
}
|
|
}
|
|
|
|
void ff_fdct_mmx2(int16_t *block)
|
|
{
|
|
DECLARE_ALIGNED(8, int64_t, align_tmp)[16];
|
|
int16_t *block1= (int16_t*)align_tmp;
|
|
const int16_t *table= tab_frw_01234567;
|
|
int i;
|
|
|
|
fdct_col_mmx(block, block1, 0);
|
|
fdct_col_mmx(block, block1, 4);
|
|
|
|
for(i=8;i>0;i--) {
|
|
fdct_row_mmx2(block1, block, table);
|
|
block1 += 8;
|
|
table += 32;
|
|
block += 8;
|
|
}
|
|
}
|
|
|
|
void ff_fdct_sse2(int16_t *block)
|
|
{
|
|
DECLARE_ALIGNED(16, int64_t, align_tmp)[16];
|
|
int16_t * const block1= (int16_t*)align_tmp;
|
|
|
|
fdct_col_sse2(block, block1, 0);
|
|
fdct_row_sse2(block1, block);
|
|
}
|
|
|