|
|
|
|
/*
|
|
|
|
|
* XVID MPEG-4 VIDEO CODEC
|
|
|
|
|
* - SSE2 inverse discrete cosine transform -
|
|
|
|
|
*
|
|
|
|
|
* Copyright(C) 2003 Pascal Massimino <skal@planet-d.net>
|
|
|
|
|
*
|
|
|
|
|
* Conversion to gcc syntax with modifications
|
|
|
|
|
* by Alexander Strange <astrange@ithinksw.com>
|
|
|
|
|
*
|
|
|
|
|
* Originally from dct/x86_asm/fdct_sse2_skal.asm in Xvid.
|
|
|
|
|
*
|
|
|
|
|
* This file is part of Libav.
|
|
|
|
|
*
|
|
|
|
|
* Vertical pass is an implementation of the scheme:
|
|
|
|
|
* Loeffler C., Ligtenberg A., and Moschytz C.S.:
|
|
|
|
|
* Practical Fast 1D DCT Algorithm with Eleven Multiplications,
|
|
|
|
|
* Proc. ICASSP 1989, 988-991.
|
|
|
|
|
*
|
|
|
|
|
* Horizontal pass is a double 4x4 vector/matrix multiplication,
|
|
|
|
|
* (see also Intel's Application Note 922:
|
|
|
|
|
* http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
|
|
|
|
|
* Copyright (C) 1999 Intel Corporation)
|
|
|
|
|
*
|
|
|
|
|
* More details at http://skal.planet-d.net/coding/dct.html
|
|
|
|
|
*
|
|
|
|
|
* Libav is free software; you can redistribute it and/or
|
|
|
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
* License as published by the Free Software Foundation; either
|
|
|
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
|
|
|
*
|
|
|
|
|
* Libav 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
|
|
|
|
|
* Lesser General Public License for more details.
|
|
|
|
|
*
|
|
|
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
|
|
|
* along with Libav; if not, write to the Free Software Foundation,
|
|
|
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#include "libavutil/internal.h"
|
|
|
|
|
#include "libavutil/mem.h"
|
|
|
|
|
#include "libavutil/x86/asm.h"
|
|
|
|
|
|
|
|
|
|
#include "idctdsp.h"
|
|
|
|
|
#include "xvididct.h"
|
|
|
|
|
|
|
|
|
|
#if HAVE_SSE2_INLINE
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @file
|
|
|
|
|
* @brief SSE2 IDCT compatible with the Xvid IDCT
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define X8(x) x, x, x, x, x, x, x, x
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, tan1)[] = { X8(13036) }; // tan( pi/16)
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, tan2)[] = { X8(27146) }; // tan(2pi/16) = sqrt(2)-1
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, tan3)[] = { X8(43790) }; // tan(3pi/16)-1
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, sqrt2)[] = { X8(23170) }; // 0.5/sqrt(2)
|
|
|
|
|
DECLARE_ASM_CONST(8, uint8_t, m127)[] = { X8(127) };
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, iTab1)[] = {
|
|
|
|
|
0x4000, 0x539f, 0xc000, 0xac61, 0x4000, 0xdd5d, 0x4000, 0xdd5d,
|
|
|
|
|
0x4000, 0x22a3, 0x4000, 0x22a3, 0xc000, 0x539f, 0x4000, 0xac61,
|
|
|
|
|
0x3249, 0x11a8, 0x4b42, 0xee58, 0x11a8, 0x4b42, 0x11a8, 0xcdb7,
|
|
|
|
|
0x58c5, 0x4b42, 0xa73b, 0xcdb7, 0x3249, 0xa73b, 0x4b42, 0xa73b
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, iTab2)[] = {
|
|
|
|
|
0x58c5, 0x73fc, 0xa73b, 0x8c04, 0x58c5, 0xcff5, 0x58c5, 0xcff5,
|
|
|
|
|
0x58c5, 0x300b, 0x58c5, 0x300b, 0xa73b, 0x73fc, 0x58c5, 0x8c04,
|
|
|
|
|
0x45bf, 0x187e, 0x6862, 0xe782, 0x187e, 0x6862, 0x187e, 0xba41,
|
|
|
|
|
0x7b21, 0x6862, 0x84df, 0xba41, 0x45bf, 0x84df, 0x6862, 0x84df
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, iTab3)[] = {
|
|
|
|
|
0x539f, 0x6d41, 0xac61, 0x92bf, 0x539f, 0xd2bf, 0x539f, 0xd2bf,
|
|
|
|
|
0x539f, 0x2d41, 0x539f, 0x2d41, 0xac61, 0x6d41, 0x539f, 0x92bf,
|
|
|
|
|
0x41b3, 0x1712, 0x6254, 0xe8ee, 0x1712, 0x6254, 0x1712, 0xbe4d,
|
|
|
|
|
0x73fc, 0x6254, 0x8c04, 0xbe4d, 0x41b3, 0x8c04, 0x6254, 0x8c04
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int16_t, iTab4)[] = {
|
|
|
|
|
0x4b42, 0x6254, 0xb4be, 0x9dac, 0x4b42, 0xd746, 0x4b42, 0xd746,
|
|
|
|
|
0x4b42, 0x28ba, 0x4b42, 0x28ba, 0xb4be, 0x6254, 0x4b42, 0x9dac,
|
|
|
|
|
0x3b21, 0x14c3, 0x587e, 0xeb3d, 0x14c3, 0x587e, 0x14c3, 0xc4df,
|
|
|
|
|
0x6862, 0x587e, 0x979e, 0xc4df, 0x3b21, 0x979e, 0x587e, 0x979e
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
DECLARE_ASM_CONST(16, int32_t, walkenIdctRounders)[] = {
|
|
|
|
|
65536, 65536, 65536, 65536,
|
|
|
|
|
3597, 3597, 3597, 3597,
|
|
|
|
|
2260, 2260, 2260, 2260,
|
|
|
|
|
1203, 1203, 1203, 1203,
|
|
|
|
|
120, 120, 120, 120,
|
|
|
|
|
512, 512, 512, 512
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// Temporary storage before the column pass
|
|
|
|
|
#define ROW1 "%%xmm6"
|
|
|
|
|
#define ROW3 "%%xmm4"
|
|
|
|
|
#define ROW5 "%%xmm5"
|
|
|
|
|
#define ROW7 "%%xmm7"
|
|
|
|
|
|
|
|
|
|
#define CLEAR_ODD(r) "pxor "r","r" \n\t"
|
|
|
|
|
#define PUT_ODD(dst) "pshufhw $0x1B, %%xmm2, "dst" \n\t"
|
|
|
|
|
|
|
|
|
|
#if ARCH_X86_64
|
|
|
|
|
|
|
|
|
|
# define ROW0 "%%xmm8"
|
|
|
|
|
# define REG0 ROW0
|
|
|
|
|
# define ROW2 "%%xmm9"
|
|
|
|
|
# define REG2 ROW2
|
|
|
|
|
# define ROW4 "%%xmm10"
|
|
|
|
|
# define REG4 ROW4
|
|
|
|
|
# define ROW6 "%%xmm11"
|
|
|
|
|
# define REG6 ROW6
|
|
|
|
|
# define CLEAR_EVEN(r) CLEAR_ODD(r)
|
|
|
|
|
# define PUT_EVEN(dst) PUT_ODD(dst)
|
|
|
|
|
# define XMMS "%%xmm12"
|
|
|
|
|
# define MOV_32_ONLY "#"
|
|
|
|
|
# define SREG2 REG2
|
|
|
|
|
# define TAN3 "%%xmm13"
|
|
|
|
|
# define TAN1 "%%xmm14"
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
# define ROW0 "(%0)"
|
|
|
|
|
# define REG0 "%%xmm4"
|
|
|
|
|
# define ROW2 "2*16(%0)"
|
|
|
|
|
# define REG2 "%%xmm4"
|
|
|
|
|
# define ROW4 "4*16(%0)"
|
|
|
|
|
# define REG4 "%%xmm6"
|
|
|
|
|
# define ROW6 "6*16(%0)"
|
|
|
|
|
# define REG6 "%%xmm6"
|
|
|
|
|
# define CLEAR_EVEN(r)
|
|
|
|
|
# define PUT_EVEN(dst) \
|
|
|
|
|
"pshufhw $0x1B, %%xmm2, %%xmm2 \n\t" \
|
|
|
|
|
"movdqa %%xmm2, "dst" \n\t"
|
|
|
|
|
# define XMMS "%%xmm2"
|
|
|
|
|
# define MOV_32_ONLY "movdqa "
|
|
|
|
|
# define SREG2 "%%xmm7"
|
|
|
|
|
# define TAN3 "%%xmm0"
|
|
|
|
|
# define TAN1 "%%xmm2"
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#define ROUND(x) "paddd "MANGLE(x)
|
|
|
|
|
|
|
|
|
|
#define JZ(reg, to) \
|
|
|
|
|
"testl "reg","reg" \n\t" \
|
|
|
|
|
"jz "to" \n\t"
|
|
|
|
|
|
|
|
|
|
#define JNZ(reg, to) \
|
|
|
|
|
"testl "reg","reg" \n\t" \
|
|
|
|
|
"jnz "to" \n\t"
|
|
|
|
|
|
|
|
|
|
#define TEST_ONE_ROW(src, reg, clear) \
|
|
|
|
|
clear \
|
|
|
|
|
"movq "src", %%mm1 \n\t" \
|
|
|
|
|
"por 8+"src", %%mm1 \n\t" \
|
|
|
|
|
"paddusb %%mm0, %%mm1 \n\t" \
|
|
|
|
|
"pmovmskb %%mm1, "reg" \n\t"
|
|
|
|
|
|
|
|
|
|
#define TEST_TWO_ROWS(row1, row2, reg1, reg2, clear1, clear2) \
|
|
|
|
|
clear1 \
|
|
|
|
|
clear2 \
|
|
|
|
|
"movq "row1", %%mm1 \n\t" \
|
|
|
|
|
"por 8+"row1", %%mm1 \n\t" \
|
|
|
|
|
"movq "row2", %%mm2 \n\t" \
|
|
|
|
|
"por 8+"row2", %%mm2 \n\t" \
|
|
|
|
|
"paddusb %%mm0, %%mm1 \n\t" \
|
|
|
|
|
"paddusb %%mm0, %%mm2 \n\t" \
|
|
|
|
|
"pmovmskb %%mm1, "reg1" \n\t" \
|
|
|
|
|
"pmovmskb %%mm2, "reg2" \n\t"
|
|
|
|
|
|
|
|
|
|
/// IDCT pass on rows.
|
|
|
|
|
#define iMTX_MULT(src, table, rounder, put) \
|
|
|
|
|
"movdqa "src", %%xmm3 \n\t" \
|
|
|
|
|
"movdqa %%xmm3, %%xmm0 \n\t" \
|
|
|
|
|
"pshufd $0x11, %%xmm3, %%xmm1 \n\t" /* 4602 */ \
|
|
|
|
|
"punpcklqdq %%xmm0, %%xmm0 \n\t" /* 0246 */ \
|
|
|
|
|
"pmaddwd "table", %%xmm0 \n\t" \
|
|
|
|
|
"pmaddwd 16+"table", %%xmm1 \n\t" \
|
|
|
|
|
"pshufd $0xBB, %%xmm3, %%xmm2 \n\t" /* 5713 */ \
|
|
|
|
|
"punpckhqdq %%xmm3, %%xmm3 \n\t" /* 1357 */ \
|
|
|
|
|
"pmaddwd 32+"table", %%xmm2 \n\t" \
|
|
|
|
|
"pmaddwd 48+"table", %%xmm3 \n\t" \
|
|
|
|
|
"paddd %%xmm1, %%xmm0 \n\t" \
|
|
|
|
|
"paddd %%xmm3, %%xmm2 \n\t" \
|
|
|
|
|
rounder", %%xmm0 \n\t" \
|
|
|
|
|
"movdqa %%xmm2, %%xmm3 \n\t" \
|
|
|
|
|
"paddd %%xmm0, %%xmm2 \n\t" \
|
|
|
|
|
"psubd %%xmm3, %%xmm0 \n\t" \
|
|
|
|
|
"psrad $11, %%xmm2 \n\t" \
|
|
|
|
|
"psrad $11, %%xmm0 \n\t" \
|
|
|
|
|
"packssdw %%xmm0, %%xmm2 \n\t" \
|
|
|
|
|
put \
|
|
|
|
|
"1: \n\t"
|
|
|
|
|
|
|
|
|
|
#define iLLM_HEAD \
|
|
|
|
|
"movdqa "MANGLE(tan3)", "TAN3" \n\t" \
|
|
|
|
|
"movdqa "MANGLE(tan1)", "TAN1" \n\t" \
|
|
|
|
|
|
|
|
|
|
/// IDCT pass on columns.
|
|
|
|
|
#define iLLM_PASS(dct) \
|
|
|
|
|
"movdqa "TAN3", %%xmm1 \n\t" \
|
|
|
|
|
"movdqa "TAN1", %%xmm3 \n\t" \
|
|
|
|
|
"pmulhw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"pmulhw %%xmm5, %%xmm1 \n\t" \
|
|
|
|
|
"paddsw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"paddsw %%xmm5, %%xmm1 \n\t" \
|
|
|
|
|
"psubsw %%xmm5, "TAN3" \n\t" \
|
|
|
|
|
"paddsw %%xmm4, %%xmm1 \n\t" \
|
|
|
|
|
"pmulhw %%xmm7, %%xmm3 \n\t" \
|
|
|
|
|
"pmulhw %%xmm6, "TAN1" \n\t" \
|
|
|
|
|
"paddsw %%xmm6, %%xmm3 \n\t" \
|
|
|
|
|
"psubsw %%xmm7, "TAN1" \n\t" \
|
|
|
|
|
"movdqa %%xmm3, %%xmm7 \n\t" \
|
|
|
|
|
"movdqa "TAN1", %%xmm6 \n\t" \
|
|
|
|
|
"psubsw %%xmm1, %%xmm3 \n\t" \
|
|
|
|
|
"psubsw "TAN3", "TAN1" \n\t" \
|
|
|
|
|
"paddsw %%xmm7, %%xmm1 \n\t" \
|
|
|
|
|
"paddsw %%xmm6, "TAN3" \n\t" \
|
|
|
|
|
"movdqa %%xmm3, %%xmm6 \n\t" \
|
|
|
|
|
"psubsw "TAN3", %%xmm3 \n\t" \
|
|
|
|
|
"paddsw %%xmm6, "TAN3" \n\t" \
|
|
|
|
|
"movdqa "MANGLE(sqrt2)", %%xmm4 \n\t" \
|
|
|
|
|
"pmulhw %%xmm4, %%xmm3 \n\t" \
|
|
|
|
|
"pmulhw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"paddsw "TAN3", "TAN3" \n\t" \
|
|
|
|
|
"paddsw %%xmm3, %%xmm3 \n\t" \
|
|
|
|
|
"movdqa "MANGLE(tan2)", %%xmm7 \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW2", "REG2" \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW6", "REG6" \n\t" \
|
|
|
|
|
"movdqa %%xmm7, %%xmm5 \n\t" \
|
|
|
|
|
"pmulhw "REG6", %%xmm7 \n\t" \
|
|
|
|
|
"pmulhw "REG2", %%xmm5 \n\t" \
|
|
|
|
|
"paddsw "REG2", %%xmm7 \n\t" \
|
|
|
|
|
"psubsw "REG6", %%xmm5 \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW0", "REG0" \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW4", "REG4" \n\t" \
|
|
|
|
|
MOV_32_ONLY" "TAN1", (%0) \n\t" \
|
|
|
|
|
"movdqa "REG0", "XMMS" \n\t" \
|
|
|
|
|
"psubsw "REG4", "REG0" \n\t" \
|
|
|
|
|
"paddsw "XMMS", "REG4" \n\t" \
|
|
|
|
|
"movdqa "REG4", "XMMS" \n\t" \
|
|
|
|
|
"psubsw %%xmm7, "REG4" \n\t" \
|
|
|
|
|
"paddsw "XMMS", %%xmm7 \n\t" \
|
|
|
|
|
"movdqa "REG0", "XMMS" \n\t" \
|
|
|
|
|
"psubsw %%xmm5, "REG0" \n\t" \
|
|
|
|
|
"paddsw "XMMS", %%xmm5 \n\t" \
|
|
|
|
|
"movdqa %%xmm5, "XMMS" \n\t" \
|
|
|
|
|
"psubsw "TAN3", %%xmm5 \n\t" \
|
|
|
|
|
"paddsw "XMMS", "TAN3" \n\t" \
|
|
|
|
|
"movdqa "REG0", "XMMS" \n\t" \
|
|
|
|
|
"psubsw %%xmm3, "REG0" \n\t" \
|
|
|
|
|
"paddsw "XMMS", %%xmm3 \n\t" \
|
|
|
|
|
MOV_32_ONLY" (%0), "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm5 \n\t" \
|
|
|
|
|
"psraw $6, "REG0" \n\t" \
|
|
|
|
|
"psraw $6, "TAN3" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm3 \n\t" \
|
|
|
|
|
"movdqa "TAN3", 1*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm3, 2*16("dct") \n\t" \
|
|
|
|
|
"movdqa "REG0", 5*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm5, 6*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm7, %%xmm0 \n\t" \
|
|
|
|
|
"movdqa "REG4", %%xmm4 \n\t" \
|
|
|
|
|
"psubsw %%xmm1, %%xmm7 \n\t" \
|
|
|
|
|
"psubsw "TAN1", "REG4" \n\t" \
|
|
|
|
|
"paddsw %%xmm0, %%xmm1 \n\t" \
|
|
|
|
|
"paddsw %%xmm4, "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm1 \n\t" \
|
|
|
|
|
"psraw $6, %%xmm7 \n\t" \
|
|
|
|
|
"psraw $6, "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, "REG4" \n\t" \
|
|
|
|
|
"movdqa %%xmm1, ("dct") \n\t" \
|
|
|
|
|
"movdqa "TAN1", 3*16("dct") \n\t" \
|
|
|
|
|
"movdqa "REG4", 4*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm7, 7*16("dct") \n\t"
|
|
|
|
|
|
|
|
|
|
/// IDCT pass on columns, assuming rows 4-7 are zero.
|
|
|
|
|
#define iLLM_PASS_SPARSE(dct) \
|
|
|
|
|
"pmulhw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"paddsw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"movdqa %%xmm6, %%xmm3 \n\t" \
|
|
|
|
|
"pmulhw %%xmm6, "TAN1" \n\t" \
|
|
|
|
|
"movdqa %%xmm4, %%xmm1 \n\t" \
|
|
|
|
|
"psubsw %%xmm1, %%xmm3 \n\t" \
|
|
|
|
|
"paddsw %%xmm6, %%xmm1 \n\t" \
|
|
|
|
|
"movdqa "TAN1", %%xmm6 \n\t" \
|
|
|
|
|
"psubsw "TAN3", "TAN1" \n\t" \
|
|
|
|
|
"paddsw %%xmm6, "TAN3" \n\t" \
|
|
|
|
|
"movdqa %%xmm3, %%xmm6 \n\t" \
|
|
|
|
|
"psubsw "TAN3", %%xmm3 \n\t" \
|
|
|
|
|
"paddsw %%xmm6, "TAN3" \n\t" \
|
|
|
|
|
"movdqa "MANGLE(sqrt2)", %%xmm4 \n\t" \
|
|
|
|
|
"pmulhw %%xmm4, %%xmm3 \n\t" \
|
|
|
|
|
"pmulhw %%xmm4, "TAN3" \n\t" \
|
|
|
|
|
"paddsw "TAN3", "TAN3" \n\t" \
|
|
|
|
|
"paddsw %%xmm3, %%xmm3 \n\t" \
|
|
|
|
|
"movdqa "MANGLE(tan2)", %%xmm5 \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW2", "SREG2" \n\t" \
|
|
|
|
|
"pmulhw "SREG2", %%xmm5 \n\t" \
|
|
|
|
|
MOV_32_ONLY ROW0", "REG0" \n\t" \
|
|
|
|
|
"movdqa "REG0", %%xmm6 \n\t" \
|
|
|
|
|
"psubsw "SREG2", %%xmm6 \n\t" \
|
|
|
|
|
"paddsw "REG0", "SREG2" \n\t" \
|
|
|
|
|
MOV_32_ONLY" "TAN1", (%0) \n\t" \
|
|
|
|
|
"movdqa "REG0", "XMMS" \n\t" \
|
|
|
|
|
"psubsw %%xmm5, "REG0" \n\t" \
|
|
|
|
|
"paddsw "XMMS", %%xmm5 \n\t" \
|
|
|
|
|
"movdqa %%xmm5, "XMMS" \n\t" \
|
|
|
|
|
"psubsw "TAN3", %%xmm5 \n\t" \
|
|
|
|
|
"paddsw "XMMS", "TAN3" \n\t" \
|
|
|
|
|
"movdqa "REG0", "XMMS" \n\t" \
|
|
|
|
|
"psubsw %%xmm3, "REG0" \n\t" \
|
|
|
|
|
"paddsw "XMMS", %%xmm3 \n\t" \
|
|
|
|
|
MOV_32_ONLY" (%0), "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm5 \n\t" \
|
|
|
|
|
"psraw $6, "REG0" \n\t" \
|
|
|
|
|
"psraw $6, "TAN3" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm3 \n\t" \
|
|
|
|
|
"movdqa "TAN3", 1*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm3, 2*16("dct") \n\t" \
|
|
|
|
|
"movdqa "REG0", 5*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm5, 6*16("dct") \n\t" \
|
|
|
|
|
"movdqa "SREG2", %%xmm0 \n\t" \
|
|
|
|
|
"movdqa %%xmm6, %%xmm4 \n\t" \
|
|
|
|
|
"psubsw %%xmm1, "SREG2" \n\t" \
|
|
|
|
|
"psubsw "TAN1", %%xmm6 \n\t" \
|
|
|
|
|
"paddsw %%xmm0, %%xmm1 \n\t" \
|
|
|
|
|
"paddsw %%xmm4, "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm1 \n\t" \
|
|
|
|
|
"psraw $6, "SREG2" \n\t" \
|
|
|
|
|
"psraw $6, "TAN1" \n\t" \
|
|
|
|
|
"psraw $6, %%xmm6 \n\t" \
|
|
|
|
|
"movdqa %%xmm1, ("dct") \n\t" \
|
|
|
|
|
"movdqa "TAN1", 3*16("dct") \n\t" \
|
|
|
|
|
"movdqa %%xmm6, 4*16("dct") \n\t" \
|
|
|
|
|
"movdqa "SREG2", 7*16("dct") \n\t"
|
|
|
|
|
|
|
|
|
|
inline void ff_xvid_idct_sse2(short *block)
|
|
|
|
|
{
|
|
|
|
|
__asm__ volatile (
|
|
|
|
|
"movq "MANGLE (m127) ", %%mm0 \n\t"
|
|
|
|
|
iMTX_MULT("(%0)", MANGLE(iTab1), ROUND(walkenIdctRounders), PUT_EVEN(ROW0))
|
|
|
|
|
iMTX_MULT("1*16(%0)", MANGLE(iTab2), ROUND(walkenIdctRounders + 1 * 16), PUT_ODD(ROW1))
|
|
|
|
|
iMTX_MULT("2*16(%0)", MANGLE(iTab3), ROUND(walkenIdctRounders + 2 * 16), PUT_EVEN(ROW2))
|
|
|
|
|
|
|
|
|
|
TEST_TWO_ROWS("3*16(%0)", "4*16(%0)", "%%eax", "%%ecx", CLEAR_ODD(ROW3), CLEAR_EVEN(ROW4))
|
|
|
|
|
JZ("%%eax", "1f")
|
|
|
|
|
iMTX_MULT("3*16(%0)", MANGLE(iTab4), ROUND(walkenIdctRounders + 3 * 16), PUT_ODD(ROW3))
|
|
|
|
|
|
|
|
|
|
TEST_TWO_ROWS("5*16(%0)", "6*16(%0)", "%%eax", "%%edx", CLEAR_ODD(ROW5), CLEAR_EVEN(ROW6))
|
|
|
|
|
TEST_ONE_ROW("7*16(%0)", "%%esi", CLEAR_ODD(ROW7))
|
|
|
|
|
iLLM_HEAD
|
|
|
|
|
".p2align 4 \n\t"
|
|
|
|
|
JNZ("%%ecx", "2f")
|
|
|
|
|
JNZ("%%eax", "3f")
|
|
|
|
|
JNZ("%%edx", "4f")
|
|
|
|
|
JNZ("%%esi", "5f")
|
|
|
|
|
iLLM_PASS_SPARSE("%0")
|
|
|
|
|
"jmp 6f \n\t"
|
|
|
|
|
"2: \n\t"
|
|
|
|
|
iMTX_MULT("4*16(%0)", MANGLE(iTab1), "#", PUT_EVEN(ROW4))
|
|
|
|
|
"3: \n\t"
|
|
|
|
|
iMTX_MULT("5*16(%0)", MANGLE(iTab4), ROUND(walkenIdctRounders + 4 * 16), PUT_ODD(ROW5))
|
|
|
|
|
JZ("%%edx", "1f")
|
|
|
|
|
"4: \n\t"
|
|
|
|
|
iMTX_MULT("6*16(%0)", MANGLE(iTab3), ROUND(walkenIdctRounders + 5 * 16), PUT_EVEN(ROW6))
|
|
|
|
|
JZ("%%esi", "1f")
|
|
|
|
|
"5: \n\t"
|
|
|
|
|
iMTX_MULT("7*16(%0)", MANGLE(iTab2), ROUND(walkenIdctRounders + 5 * 16), PUT_ODD(ROW7))
|
|
|
|
|
#if ARCH_X86_32
|
|
|
|
|
iLLM_HEAD
|
|
|
|
|
#endif
|
|
|
|
|
iLLM_PASS("%0")
|
|
|
|
|
"6: \n\t"
|
|
|
|
|
: "+r" (block)
|
|
|
|
|
:
|
|
|
|
|
: XMM_CLOBBERS("%xmm0", "%xmm1", "%xmm2", "%xmm3",
|
|
|
|
|
"%xmm4", "%xmm5", "%xmm6", "%xmm7", )
|
|
|
|
|
#if ARCH_X86_64
|
|
|
|
|
XMM_CLOBBERS("%xmm8", "%xmm9", "%xmm10", "%xmm11",
|
|
|
|
|
"%xmm12", "%xmm13", "%xmm14", )
|
|
|
|
|
#endif
|
|
|
|
|
"%eax", "%ecx", "%edx", "%esi", "memory");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void ff_xvid_idct_sse2_put(uint8_t *dest, int line_size, short *block)
|
|
|
|
|
{
|
|
|
|
|
ff_xvid_idct_sse2(block);
|
|
|
|
|
ff_put_pixels_clamped_mmx(block, dest, line_size);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void ff_xvid_idct_sse2_add(uint8_t *dest, int line_size, short *block)
|
|
|
|
|
{
|
|
|
|
|
ff_xvid_idct_sse2(block);
|
|
|
|
|
ff_add_pixels_clamped_mmx(block, dest, line_size);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif /* HAVE_SSE2_INLINE */
|
