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authorChristophe Gisquet <christophe.gisquet@gmail.com>2015-03-10 23:11:52 +0000
committerMichael Niedermayer <michaelni@gmx.at>2015-03-14 11:45:11 +0100
commitc3bf52713a8485f5bcba4c37ae7373c6b67cd1eb (patch)
tree58d9f96124e57b41a0ccfa8b3fd2bad98c6a4ef5 /libavcodec/x86
parent7b05b5093ea67a3397b0c37cf398bab471e1ce2b (diff)
x86: xvid_idct: port MMX iDCT to yasm
Also reduce the table duplication with SSE2 code, remove duplicated macro parameters. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/x86')
-rw-r--r--libavcodec/x86/Makefile1
-rw-r--r--libavcodec/x86/dct-test.c8
-rw-r--r--libavcodec/x86/xvididct.asm450
-rw-r--r--libavcodec/x86/xvididct_init.c40
-rw-r--r--libavcodec/x86/xvididct_mmx.c549
5 files changed, 484 insertions, 564 deletions
diff --git a/libavcodec/x86/Makefile b/libavcodec/x86/Makefile
index f46c7d572f..87985f279b 100644
--- a/libavcodec/x86/Makefile
+++ b/libavcodec/x86/Makefile
@@ -73,7 +73,6 @@ MMX-OBJS-$(CONFIG_FDCTDSP) += x86/fdct.o
MMX-OBJS-$(CONFIG_IDCTDSP) += x86/simple_idct.o
# decoders/encoders
-MMX-OBJS-$(CONFIG_MPEG4_DECODER) += x86/xvididct_mmx.o
MMX-OBJS-$(CONFIG_SNOW_DECODER) += x86/snowdsp.o
MMX-OBJS-$(CONFIG_SNOW_ENCODER) += x86/snowdsp.o
MMX-OBJS-$(CONFIG_VC1_DECODER) += x86/vc1dsp_mmx.o
diff --git a/libavcodec/x86/dct-test.c b/libavcodec/x86/dct-test.c
index e14ce9aac3..3a4c0df77c 100644
--- a/libavcodec/x86/dct-test.c
+++ b/libavcodec/x86/dct-test.c
@@ -60,11 +60,9 @@ static const struct algo idct_tab_arch[] = {
#if HAVE_MMX_INLINE
{ "SIMPLE-MMX", ff_simple_idct_mmx, FF_IDCT_PERM_SIMPLE, AV_CPU_FLAG_MMX },
#endif
-#if CONFIG_MPEG4_DECODER
-#if HAVE_MMX_INLINE
+#if CONFIG_MPEG4_DECODER && HAVE_YASM
+#if ARCH_X86_32
{ "XVID-MMX", ff_xvid_idct_mmx, FF_IDCT_PERM_NONE, AV_CPU_FLAG_MMX, 1 },
-#endif
-#if HAVE_MMXEXT_INLINE
{ "XVID-MMXEXT", ff_xvid_idct_mmxext, FF_IDCT_PERM_NONE, AV_CPU_FLAG_MMXEXT, 1 },
#endif
#if HAVE_SSE2_EXTERNAL
@@ -73,7 +71,7 @@ static const struct algo idct_tab_arch[] = {
{ "PR-SSE2", ff_prores_idct_put_10_sse2_wrap, FF_IDCT_PERM_TRANSPOSE, AV_CPU_FLAG_SSE2, 1 },
#endif
#endif
-#endif /* CONFIG_MPEG4_DECODER */
+#endif /* CONFIG_MPEG4_DECODER && HAVE_YASM */
{ 0 }
};
diff --git a/libavcodec/x86/xvididct.asm b/libavcodec/x86/xvididct.asm
index d16db345a4..4c52bf159e 100644
--- a/libavcodec/x86/xvididct.asm
+++ b/libavcodec/x86/xvididct.asm
@@ -1,5 +1,9 @@
; XVID MPEG-4 VIDEO CODEC
-; - SSE2 inverse discrete cosine transform -
+;
+; Conversion from gcc syntax to x264asm syntax with modifications
+; by Christophe Gisquet <christophe.gisquet@gmail.com>
+;
+; =========== SSE2 inverse discrete cosine transform ===========
;
; Copyright(C) 2003 Pascal Massimino <skal@planet-d.net>
;
@@ -8,8 +12,6 @@
;
; Originally from dct/x86_asm/fdct_sse2_skal.asm in Xvid.
;
-; This file is part of FFmpeg.
-;
; Vertical pass is an implementation of the scheme:
; Loeffler C., Ligtenberg A., and Moschytz C.S.:
; Practical Fast 1D DCT Algorithm with Eleven Multiplications,
@@ -22,6 +24,32 @@
;
; More details at http://skal.planet-d.net/coding/dct.html
;
+; ======= MMX and XMM forward discrete cosine transform =======
+;
+; Copyright(C) 2001 Peter Ross <pross@xvid.org>
+;
+; Originally provided by Intel at AP-922
+; http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
+; (See more app notes at http://developer.intel.com/vtune/cbts/strmsimd/appnotes.htm)
+; but in a limited edition.
+; New macro implements a column part for precise iDCT
+; The routine precision now satisfies IEEE standard 1180-1990.
+;
+; Copyright(C) 2000-2001 Peter Gubanov <peter@elecard.net.ru>
+; Rounding trick Copyright(C) 2000 Michel Lespinasse <walken@zoy.org>
+;
+; http://www.elecard.com/peter/idct.html
+; http://www.linuxvideo.org/mpeg2dec/
+;
+; These examples contain code fragments for first stage iDCT 8x8
+; (for rows) and first stage DCT 8x8 (for columns)
+;
+; conversion to gcc syntax by Michael Niedermayer
+;
+; ======================================================================
+;
+; This file is part of FFmpeg.
+;
; FFmpeg 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
@@ -39,11 +67,13 @@
%include "libavutil/x86/x86util.asm"
SECTION_RODATA
+; Similar to tg_1_16 in MMX code
tan1: times 8 dw 13036
tan2: times 8 dw 27146
tan3: times 8 dw 43790
sqrt2: times 8 dw 23170
+; SSE2 tables
iTab1: dw 0x4000, 0x539f, 0xc000, 0xac61, 0x4000, 0xdd5d, 0x4000, 0xdd5d
dw 0x4000, 0x22a3, 0x4000, 0x22a3, 0xc000, 0x539f, 0x4000, 0xac61
dw 0x3249, 0x11a8, 0x4b42, 0xee58, 0x11a8, 0x4b42, 0x11a8, 0xcdb7
@@ -61,12 +91,154 @@ iTab4: dw 0x4b42, 0x6254, 0xb4be, 0x9dac, 0x4b42, 0xd746, 0x4b42, 0xd746
dw 0x3b21, 0x14c3, 0x587e, 0xeb3d, 0x14c3, 0x587e, 0x14c3, 0xc4df
dw 0x6862, 0x587e, 0x979e, 0xc4df, 0x3b21, 0x979e, 0x587e, 0x979e
+%if ARCH_X86_32
+; -----------------------------------------------------------------------------
+;
+; The first stage iDCT 8x8 - inverse DCTs of rows
+;
+; -----------------------------------------------------------------------------
+; The 8-point inverse DCT direct algorithm
+; -----------------------------------------------------------------------------
+;
+; static const short w[32] = {
+; FIX(cos_4_16), FIX(cos_2_16), FIX(cos_4_16), FIX(cos_6_16),
+; FIX(cos_4_16), FIX(cos_6_16), -FIX(cos_4_16), -FIX(cos_2_16),
+; FIX(cos_4_16), -FIX(cos_6_16), -FIX(cos_4_16), FIX(cos_2_16),
+; FIX(cos_4_16), -FIX(cos_2_16), FIX(cos_4_16), -FIX(cos_6_16),
+; FIX(cos_1_16), FIX(cos_3_16), FIX(cos_5_16), FIX(cos_7_16),
+; FIX(cos_3_16), -FIX(cos_7_16), -FIX(cos_1_16), -FIX(cos_5_16),
+; FIX(cos_5_16), -FIX(cos_1_16), FIX(cos_7_16), FIX(cos_3_16),
+; FIX(cos_7_16), -FIX(cos_5_16), FIX(cos_3_16), -FIX(cos_1_16) };
+;
+; #define DCT_8_INV_ROW(x, y)
+; {
+; int a0, a1, a2, a3, b0, b1, b2, b3;
+;
+; a0 = x[0] * w[0] + x[2] * w[1] + x[4] * w[2] + x[6] * w[3];
+; a1 = x[0] * w[4] + x[2] * w[5] + x[4] * w[6] + x[6] * w[7];
+; a2 = x[0] * w[8] + x[2] * w[9] + x[4] * w[10] + x[6] * w[11];
+; a3 = x[0] * w[12] + x[2] * w[13] + x[4] * w[14] + x[6] * w[15];
+; b0 = x[1] * w[16] + x[3] * w[17] + x[5] * w[18] + x[7] * w[19];
+; b1 = x[1] * w[20] + x[3] * w[21] + x[5] * w[22] + x[7] * w[23];
+; b2 = x[1] * w[24] + x[3] * w[25] + x[5] * w[26] + x[7] * w[27];
+; b3 = x[1] * w[28] + x[3] * w[29] + x[5] * w[30] + x[7] * w[31];
+;
+; y[0] = SHIFT_ROUND(a0 + b0);
+; y[1] = SHIFT_ROUND(a1 + b1);
+; y[2] = SHIFT_ROUND(a2 + b2);
+; y[3] = SHIFT_ROUND(a3 + b3);
+; y[4] = SHIFT_ROUND(a3 - b3);
+; y[5] = SHIFT_ROUND(a2 - b2);
+; y[6] = SHIFT_ROUND(a1 - b1);
+; y[7] = SHIFT_ROUND(a0 - b0);
+; }
+;
+; -----------------------------------------------------------------------------
+;
+; In this implementation the outputs of the iDCT-1D are multiplied
+; for rows 0,4 - by cos_4_16,
+; for rows 1,7 - by cos_1_16,
+; for rows 2,6 - by cos_2_16,
+; for rows 3,5 - by cos_3_16
+; and are shifted to the left for better accuracy.
+;
+; For the constants used,
+; FIX(float_const) = (short) (float_const * (1 << 15) + 0.5)
+;
+; -----------------------------------------------------------------------------
+
+; -----------------------------------------------------------------------------
+; Tables for mmx processors
+; -----------------------------------------------------------------------------
+
+; Table for rows 0,4 - constants are multiplied by cos_4_16
+tab_i_04_mmx: dw 16384, 16384, 16384, -16384
+ dw 21407, 8867, 8867, -21407 ; w07 w05 w03 w01
+ dw 16384, -16384, 16384, 16384 ; w14 w12 w10 w08
+ dw -8867, 21407, -21407, -8867 ; w15 w13 w11 w09
+ dw 22725, 12873, 19266, -22725 ; w22 w20 w18 w16
+ dw 19266, 4520, -4520, -12873 ; w23 w21 w19 w17
+ dw 12873, 4520, 4520, 19266 ; w30 w28 w26 w24
+ dw -22725, 19266, -12873, -22725 ; w31 w29 w27 w25
+; Table for rows 1,7 - constants are multiplied by cos_1_16
+ dw 22725, 22725, 22725, -22725 ; movq-> w06 w04 w02 w00
+ dw 29692, 12299, 12299, -29692 ; w07 w05 w03 w01
+ dw 22725, -22725, 22725, 22725 ; w14 w12 w10 w08
+ dw -12299, 29692, -29692, -12299 ; w15 w13 w11 w09
+ dw 31521, 17855, 26722, -31521 ; w22 w20 w18 w16
+ dw 26722, 6270, -6270, -17855 ; w23 w21 w19 w17
+ dw 17855, 6270, 6270, 26722 ; w30 w28 w26 w24
+ dw -31521, 26722, -17855, -31521 ; w31 w29 w27 w25
+; Table for rows 2,6 - constants are multiplied by cos_2_16
+ dw 21407, 21407, 21407, -21407 ; movq-> w06 w04 w02 w00
+ dw 27969, 11585, 11585, -27969 ; w07 w05 w03 w01
+ dw 21407, -21407, 21407, 21407 ; w14 w12 w10 w08
+ dw -11585, 27969, -27969, -11585 ; w15 w13 w11 w09
+ dw 29692, 16819, 25172, -29692 ; w22 w20 w18 w16
+ dw 25172, 5906, -5906, -16819 ; w23 w21 w19 w17
+ dw 16819, 5906, 5906, 25172 ; w30 w28 w26 w24
+ dw -29692, 25172, -16819, -29692 ; w31 w29 w27 w25
+; Table for rows 3,5 - constants are multiplied by cos_3_16
+ dw 19266, 19266, 19266, -19266 ; movq-> w06 w04 w02 w00
+ dw 25172, 10426, 10426, -25172 ; w07 w05 w03 w01
+ dw 19266, -19266, 19266, 19266 ; w14 w12 w10 w08
+ dw -10426, 25172, -25172, -10426 ; w15 w13 w11 w09
+ dw 26722, 15137, 22654, -26722 ; w22 w20 w18 w16
+ dw 22654, 5315, -5315, -15137 ; w23 w21 w19 w17
+ dw 15137, 5315, 5315, 22654 ; w30 w28 w26 w24
+ dw -26722, 22654, -15137, -26722 ; w31 w29 w27 w25
+
+; -----------------------------------------------------------------------------
+; Tables for xmm processors
+; -----------------------------------------------------------------------------
+
+; %3 for rows 0,4 - constants are multiplied by cos_4_16
+tab_i_04_xmm: dw 16384, 21407, 16384, 8867 ; movq-> w05 w04 w01 w00
+ dw 16384, 8867, -16384, -21407 ; w07 w06 w03 w02
+ dw 16384, -8867, 16384, -21407 ; w13 w12 w09 w08
+ dw -16384, 21407, 16384, -8867 ; w15 w14 w11 w10
+ dw 22725, 19266, 19266, -4520 ; w21 w20 w17 w16
+ dw 12873, 4520, -22725, -12873 ; w23 w22 w19 w18
+ dw 12873, -22725, 4520, -12873 ; w29 w28 w25 w24
+ dw 4520, 19266, 19266, -22725 ; w31 w30 w27 w26
+; %3 for rows 1,7 - constants are multiplied by cos_1_16
+ dw 22725, 29692, 22725, 12299 ; movq-> w05 w04 w01 w00
+ dw 22725, 12299, -22725, -29692 ; w07 w06 w03 w02
+ dw 22725, -12299, 22725, -29692 ; w13 w12 w09 w08
+ dw -22725, 29692, 22725, -12299 ; w15 w14 w11 w10
+ dw 31521, 26722, 26722, -6270 ; w21 w20 w17 w16
+ dw 17855, 6270, -31521, -17855 ; w23 w22 w19 w18
+ dw 17855, -31521, 6270, -17855 ; w29 w28 w25 w24
+ dw 6270, 26722, 26722, -31521 ; w31 w30 w27 w26
+; %3 for rows 2,6 - constants are multiplied by cos_2_16
+ dw 21407, 27969, 21407, 11585 ; movq-> w05 w04 w01 w00
+ dw 21407, 11585, -21407, -27969 ; w07 w06 w03 w02
+ dw 21407, -11585, 21407, -27969 ; w13 w12 w09 w08
+ dw -21407, 27969, 21407, -11585 ; w15 w14 w11 w10
+ dw 29692, 25172, 25172, -5906 ; w21 w20 w17 w16
+ dw 16819, 5906, -29692, -16819 ; w23 w22 w19 w18
+ dw 16819, -29692, 5906, -16819 ; w29 w28 w25 w24
+ dw 5906, 25172, 25172, -29692 ; w31 w30 w27 w26
+; %3 for rows 3,5 - constants are multiplied by cos_3_16
+ dw 19266, 25172, 19266, 10426 ; movq-> w05 w04 w01 w00
+ dw 19266, 10426, -19266, -25172 ; w07 w06 w03 w02
+ dw 19266, -10426, 19266, -25172 ; w13 w12 w09 w08
+ dw -19266, 25172, 19266, -10426 ; w15 w14 w11 w10
+ dw 26722, 22654, 22654, -5315 ; w21 w20 w17 w16
+ dw 15137, 5315, -26722, -15137 ; w23 w22 w19 w18
+ dw 15137, -26722, 5315, -15137 ; w29 w28 w25 w24
+ dw 5315, 22654, 22654, -26722 ; w31 w30 w27 w26
+%endif ; ~ARCH_X86_32
+
+; Similar to rounder_0 in MMX code
+; 4 first similar, then: 4*8->6*16 5*8->4*16 6/7*8->5*16
walkenIdctRounders: times 4 dd 65536
times 4 dd 3597
times 4 dd 2260
times 4 dd 1203
times 4 dd 120
times 4 dd 512
+ times 2 dd 0
pb_127: times 8 db 127
@@ -377,3 +549,275 @@ cglobal xvid_idct, 1, 5, 8+7*ARCH_X86_64, block
iLLM_PASS r0
.6:
RET
+
+%if ARCH_X86_32
+
+; %1=offset %2=tab_offset
+; %3=rnd_offset where 4*8->6*16 5*8->4*16 6/7*8->5*16
+%macro DCT_8_INV_ROW 3
+ movq mm0, [r0+16*%1+0] ; 0 ; x3 x2 x1 x0
+ movq mm1, [r0+16*%1+8] ; 1 ; x7 x6 x5 x4
+ movq mm2, mm0 ; 2 ; x3 x2 x1 x0
+ movq mm3, [%2+ 0] ; 3 ; w06 w04 w02 w00
+%if cpuflag(mmxext)
+ pshufw mm0, mm0, 0x88 ; x2 x0 x2 x0
+ movq mm4, [%2+ 8] ; 4 ; w07 w06 w03 w02
+ movq mm5, mm1 ; 5 ; x7 x6 x5 x4
+ pmaddwd mm3, mm0 ; x2*w05+x0*w04 x2*w01+x0*w00
+ movq mm6, [%2+32] ; 6 ; w21 w20 w17 w16
+ pshufw mm1, mm1, 0x88 ; x6 x4 x6 x4
+ pmaddwd mm4, mm1 ; x6*w07+x4*w06 x6*w03+x4*w02
+ movq mm7, [%2+40] ; 7; w23 w22 w19 w18
+ pshufw mm2, mm2, 0xdd ; x3 x1 x3 x1
+ pmaddwd mm6, mm2 ; x3*w21+x1*w20 x3*w17+x1*w16
+ pshufw mm5, mm5, 0xdd ; x7 x5 x7 x5
+ pmaddwd mm7, mm5 ; x7*w23+x5*w22 x7*w19+x5*w18
+ paddd mm3, [walkenIdctRounders + %3] ; +%3
+ pmaddwd mm0, [%2+16] ; x2*w13+x0*w12 x2*w09+x0*w08
+ paddd mm3, mm4 ; 4 ; a1=sum(even1) a0=sum(even0)
+ pmaddwd mm1, [%2+24] ; x6*w15+x4*w14 x6*w11+x4*w10
+ movq mm4, mm3 ; 4 ; a1 a0
+ pmaddwd mm2, [%2+48] ; x3*w29+x1*w28 x3*w25+x1*w24
+ paddd mm6, mm7 ; 7 ; b1=sum(odd1) b0=sum(odd0)
+ pmaddwd mm5, [%2+56] ; x7*w31+x5*w30 x7*w27+x5*w26
+ paddd mm3, mm6 ; a1+b1 a0+b0
+ paddd mm0, [walkenIdctRounders + %3] ; +%3
+ psrad mm3, 11 ; y1=a1+b1 y0=a0+b0
+ paddd mm0, mm1 ; 1 ; a3=sum(even3) a2=sum(even2)
+ psubd mm4, mm6 ; 6 ; a1-b1 a0-b0
+ movq mm7, mm0 ; 7 ; a3 a2
+ paddd mm2, mm5 ; 5 ; b3=sum(odd3) b2=sum(odd2)
+ paddd mm0, mm2 ; a3+b3 a2+b2
+ psrad mm4, 11 ; y6=a1-b1 y7=a0-b0
+ psubd mm7, mm2 ; 2 ; a3-b3 a2-b2
+ psrad mm0, 11 ; y3=a3+b3 y2=a2+b2
+ psrad mm7, 11 ; y4=a3-b3 y5=a2-b2
+ packssdw mm3, mm0 ; 0 ; y3 y2 y1 y0
+ packssdw mm7, mm4 ; 4 ; y6 y7 y4 y5
+ movq [r0+16*%1+0], mm3 ; 3 ; save y3 y2 y1 y0
+ pshufw mm7, mm7, 0xb1 ; y7 y6 y5 y4
+%else
+ punpcklwd mm0, mm1 ; x5 x1 x4 x0
+ movq mm5, mm0 ; 5 ; x5 x1 x4 x0
+ punpckldq mm0, mm0 ; x4 x0 x4 x0
+ movq mm4, [%2+ 8] ; 4 ; w07 w05 w03 w01
+ punpckhwd mm2, mm1 ; 1 ; x7 x3 x6 x2
+ pmaddwd mm3, mm0 ; x4*w06+x0*w04 x4*w02+x0*w00
+ movq mm6, mm2 ; 6 ; x7 x3 x6 x2
+ movq mm1, [%2+32] ; 1 ; w22 w20 w18 w16
+ punpckldq mm2, mm2 ; x6 x2 x6 x2
+ pmaddwd mm4, mm2 ; x6*w07+x2*w05 x6*w03+x2*w01
+ punpckhdq mm5, mm5 ; x5 x1 x5 x1
+ pmaddwd mm0, [%2+16] ; x4*w14+x0*w12 x4*w10+x0*w08
+ punpckhdq mm6, mm6 ; x7 x3 x7 x3
+ movq mm7, [%2+40] ; 7 ; w23 w21 w19 w17
+ pmaddwd mm1, mm5 ; x5*w22+x1*w20 x5*w18+x1*w16
+ paddd mm3, [walkenIdctRounders + %3] ; +%3
+ pmaddwd mm7, mm6 ; x7*w23+x3*w21 x7*w19+x3*w17
+ pmaddwd mm2, [%2+24] ; x6*w15+x2*w13 x6*w11+x2*w09
+ paddd mm3, mm4 ; 4 ; a1=sum(even1) a0=sum(even0)
+ pmaddwd mm5, [%2+48] ; x5*w30+x1*w28 x5*w26+x1*w24
+ movq mm4, mm3 ; 4 ; a1 a0
+ pmaddwd mm6, [%2+56] ; x7*w31+x3*w29 x7*w27+x3*w25
+ paddd mm1, mm7 ; 7 ; b1=sum(odd1) b0=sum(odd0)
+ paddd mm0, [walkenIdctRounders + %3] ; +%3
+ psubd mm3, mm1 ; a1-b1 a0-b0
+ psrad mm3, 11 ; y6=a1-b1 y7=a0-b0
+ paddd mm1, mm4 ; 4 ; a1+b1 a0+b0
+ paddd mm0, mm2 ; 2 ; a3=sum(even3) a2=sum(even2)
+ psrad mm1, 11 ; y1=a1+b1 y0=a0+b0
+ paddd mm5, mm6 ; 6 ; b3=sum(odd3) b2=sum(odd2)
+ movq mm4, mm0 ; 4 ; a3 a2
+ paddd mm0, mm5 ; a3+b3 a2+b2
+ psubd mm4, mm5 ; 5 ; a3-b3 a2-b2
+ psrad mm0, 11 ; y3=a3+b3 y2=a2+b2
+ psrad mm4, 11 ; y4=a3-b3 y5=a2-b2
+ packssdw mm1, mm0 ; 0 ; y3 y2 y1 y0
+ packssdw mm4, mm3 ; 3 ; y6 y7 y4 y5
+ movq mm7, mm4 ; 7 ; y6 y7 y4 y5
+ psrld mm4, 16 ; 0 y6 0 y4
+ pslld mm7, 16 ; y7 0 y5 0
+ movq [r0+16*%1+0], mm1 ; 1 ; save y3 y2 y1 y0
+ por mm7, mm4 ; 4 ; y7 y6 y5 y4
+%endif
+ movq [r0+16*%1+8], mm7 ; 7 ; save y7 y6 y5 y4
+%endmacro
+
+; -----------------------------------------------------------------------------
+;
+; The first stage DCT 8x8 - forward DCTs of columns
+;
+; The %2puts are multiplied
+; for rows 0,4 - on cos_4_16,
+; for rows 1,7 - on cos_1_16,
+; for rows 2,6 - on cos_2_16,
+; for rows 3,5 - on cos_3_16
+; and are shifted to the left for rise of accuracy
+;
+; -----------------------------------------------------------------------------
+;
+; The 8-point scaled forward DCT algorithm (26a8m)
+;
+; -----------------------------------------------------------------------------
+;
+;#define DCT_8_FRW_COL(x, y)
+; {
+; short t0, t1, t2, t3, t4, t5, t6, t7;
+; short tp03, tm03, tp12, tm12, tp65, tm65;
+; short tp465, tm465, tp765, tm765;
+;
+; t0 = LEFT_SHIFT(x[0] + x[7]);
+; t1 = LEFT_SHIFT(x[1] + x[6]);
+; t2 = LEFT_SHIFT(x[2] + x[5]);
+; t3 = LEFT_SHIFT(x[3] + x[4]);
+; t4 = LEFT_SHIFT(x[3] - x[4]);
+; t5 = LEFT_SHIFT(x[2] - x[5]);
+; t6 = LEFT_SHIFT(x[1] - x[6]);
+; t7 = LEFT_SHIFT(x[0] - x[7]);
+;
+; tp03 = t0 + t3;
+; tm03 = t0 - t3;
+; tp12 = t1 + t2;
+; tm12 = t1 - t2;
+;
+; y[0] = tp03 + tp12;
+; y[4] = tp03 - tp12;
+;
+; y[2] = tm03 + tm12 * tg_2_16;
+; y[6] = tm03 * tg_2_16 - tm12;
+;
+; tp65 = (t6 + t5) * cos_4_16;
+; tm65 = (t6 - t5) * cos_4_16;
+;
+; tp765 = t7 + tp65;
+; tm765 = t7 - tp65;
+; tp465 = t4 + tm65;
+; tm465 = t4 - tm65;
+;
+; y[1] = tp765 + tp465 * tg_1_16;
+; y[7] = tp765 * tg_1_16 - tp465;
+; y[5] = tm765 * tg_3_16 + tm465;
+; y[3] = tm765 - tm465 * tg_3_16;
+; }
+;
+; -----------------------------------------------------------------------------
+
+; -----------------------------------------------------------------------------
+; DCT_8_INV_COL_4 INP,OUT
+; -----------------------------------------------------------------------------
+%macro DCT_8_INV_COL 1
+ movq mm0, [tan3]
+ movq mm3, [%1+16*3]
+ movq mm1, mm0 ; tg_3_16
+ movq mm5, [%1+16*5]
+ pmulhw mm0, mm3 ; x3*(tg_3_16-1)
+ movq mm4, [tan1]
+ pmulhw mm1, mm5 ; x5*(tg_3_16-1)
+ movq mm7, [%1+16*7]
+ movq mm2, mm4 ; tg_1_16
+ movq mm6, [%1+16*1]
+ pmulhw mm4, mm7 ; x7*tg_1_16
+ paddsw mm0, mm3 ; x3*tg_3_16
+ pmulhw mm2, mm6 ; x1*tg_1_16
+ paddsw mm1, mm3 ; x3+x5*(tg_3_16-1)
+ psubsw mm0, mm5 ; x3*tg_3_16-x5 = tm35
+ movq mm3, [sqrt2]
+ paddsw mm1, mm5 ; x3+x5*tg_3_16 = tp35
+ paddsw mm4, mm6 ; x1+tg_1_16*x7 = tp17
+ psubsw mm2, mm7 ; x1*tg_1_16-x7 = tm17
+ movq mm5, mm4 ; tp17
+ movq mm6, mm2 ; tm17
+ paddsw mm5, mm1 ; tp17+tp35 = b0
+ psubsw mm6, mm0 ; tm17-tm35 = b3
+ psubsw mm4, mm1 ; tp17-tp35 = t1
+ paddsw mm2, mm0 ; tm17+tm35 = t2
+ movq mm7, [tan2]
+ movq mm1, mm4 ; t1
+ movq [%1+3*16], mm5 ; save b0
+ paddsw mm1, mm2 ; t1+t2
+ movq [%1+5*16], mm6 ; save b3
+ psubsw mm4, mm2 ; t1-t2
+ movq mm5, [%1+2*16]
+ movq mm0, mm7 ; tg_2_16
+ movq mm6, [%1+6*16]
+ pmulhw mm0, mm5 ; x2*tg_2_16
+ pmulhw mm7, mm6 ; x6*tg_2_16
+ pmulhw mm1, mm3 ; ocos_4_16*(t1+t2) = b1/2
+ movq mm2, [%1+0*16]
+ pmulhw mm4, mm3 ; ocos_4_16*(t1-t2) = b2/2
+ psubsw mm0, mm6 ; t2*tg_2_16-x6 = tm26
+ movq mm3, mm2 ; x0
+ movq mm6, [%1+4*16]
+ paddsw mm7, mm5 ; x2+x6*tg_2_16 = tp26
+ paddsw mm2, mm6 ; x0+x4 = tp04
+ psubsw mm3, mm6 ; x0-x4 = tm04
+ movq mm5, mm2 ; tp04
+ movq mm6, mm3 ; tm04
+ psubsw mm2, mm7 ; tp04-tp26 = a3
+ paddsw mm3, mm0 ; tm04+tm26 = a1
+ paddsw mm1, mm1 ; b1
+ paddsw mm4, mm4 ; b2
+ paddsw mm5, mm7 ; tp04+tp26 = a0
+ psubsw mm6, mm0 ; tm04-tm26 = a2
+ movq mm7, mm3 ; a1
+ movq mm0, mm6 ; a2
+ paddsw mm3, mm1 ; a1+b1
+ paddsw mm6, mm4 ; a2+b2
+ psraw mm3, 6 ; dst1
+ psubsw mm7, mm1 ; a1-b1
+ psraw mm6, 6 ; dst2
+ psubsw mm0, mm4 ; a2-b2
+ movq mm1, [%1+3*16] ; load b0
+ psraw mm7, 6 ; dst6
+ movq mm4, mm5 ; a0
+ psraw mm0, 6 ; dst5
+ movq [%1+1*16], mm3
+ paddsw mm5, mm1 ; a0+b0
+ movq [%1+2*16], mm6
+ psubsw mm4, mm1 ; a0-b0
+ movq mm3, [%1+5*16] ; load b3
+ psraw mm5, 6 ; dst0
+ movq mm6, mm2 ; a3
+ psraw mm4, 6 ; dst7
+ movq [%1+5*16], mm0
+ paddsw mm2, mm3 ; a3+b3
+ movq [%1+6*16], mm7
+ psubsw mm6, mm3 ; a3-b3
+ movq [%1+0*16], mm5
+ psraw mm2, 6 ; dst3
+ movq [%1+7*16], mm4
+ psraw mm6, 6 ; dst4
+ movq [%1+3*16], mm2
+ movq [%1+4*16], mm6
+%endmacro
+
+%macro XVID_IDCT_MMX 0
+cglobal xvid_idct, 1, 1, 0, block
+%if cpuflag(mmxext)
+%define TAB tab_i_04_xmm
+%else
+%define TAB tab_i_04_mmx
+%endif
+ ; Process each row - beware of rounder offset
+ DCT_8_INV_ROW 0, TAB + 64 * 0, 0*16
+ DCT_8_INV_ROW 1, TAB + 64 * 1, 1*16
+ DCT_8_INV_ROW 2, TAB + 64 * 2, 2*16
+ DCT_8_INV_ROW 3, TAB + 64 * 3, 3*16
+ DCT_8_INV_ROW 4, TAB + 64 * 0, 6*16
+ DCT_8_INV_ROW 5, TAB + 64 * 3, 4*16
+ DCT_8_INV_ROW 6, TAB + 64 * 2, 5*16
+ DCT_8_INV_ROW 7, TAB + 64 * 1, 5*16
+
+ ; Process the columns (4 at a time)
+ DCT_8_INV_COL r0+0
+ DCT_8_INV_COL r0+8
+
+ RET
+%endmacro
+
+INIT_MMX mmx
+XVID_IDCT_MMX
+INIT_MMX mmxext
+XVID_IDCT_MMX
+
+%endif ; ~ARCH_X86_32
diff --git a/libavcodec/x86/xvididct_init.c b/libavcodec/x86/xvididct_init.c
index ae65667a31..b429032ce1 100644
--- a/libavcodec/x86/xvididct_init.c
+++ b/libavcodec/x86/xvididct_init.c
@@ -38,6 +38,32 @@ static void xvid_idct_sse2_add(uint8_t *dest, int line_size, short *block)
ff_add_pixels_clamped(block, dest, line_size);
}
+#if ARCH_X86_32
+static void xvid_idct_mmx_put(uint8_t *dest, int line_size, short *block)
+{
+ ff_xvid_idct_mmx(block);
+ ff_put_pixels_clamped(block, dest, line_size);
+}
+
+static void xvid_idct_mmx_add(uint8_t *dest, int line_size, short *block)
+{
+ ff_xvid_idct_mmx(block);
+ ff_add_pixels_clamped(block, dest, line_size);
+}
+
+static void xvid_idct_mmxext_put(uint8_t *dest, int line_size, short *block)
+{
+ ff_xvid_idct_mmxext(block);
+ ff_put_pixels_clamped(block, dest, line_size);
+}
+
+static void xvid_idct_mmxext_add(uint8_t *dest, int line_size, short *block)
+{
+ ff_xvid_idct_mmxext(block);
+ ff_add_pixels_clamped(block, dest, line_size);
+}
+#endif
+
av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
unsigned high_bit_depth)
{
@@ -48,19 +74,21 @@ av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
avctx->idct_algo == FF_IDCT_XVID))
return;
- if (INLINE_MMX(cpu_flags)) {
- c->idct_put = ff_xvid_idct_mmx_put;
- c->idct_add = ff_xvid_idct_mmx_add;
+#if ARCH_X86_32
+ if (EXTERNAL_MMX(cpu_flags)) {
+ c->idct_put = xvid_idct_mmx_put;
+ c->idct_add = xvid_idct_mmx_add;
c->idct = ff_xvid_idct_mmx;
c->perm_type = FF_IDCT_PERM_NONE;
}
- if (INLINE_MMXEXT(cpu_flags)) {
- c->idct_put = ff_xvid_idct_mmxext_put;
- c->idct_add = ff_xvid_idct_mmxext_add;
+ if (EXTERNAL_MMXEXT(cpu_flags)) {
+ c->idct_put = xvid_idct_mmxext_put;
+ c->idct_add = xvid_idct_mmxext_add;
c->idct = ff_xvid_idct_mmxext;
c->perm_type = FF_IDCT_PERM_NONE;
}
+#endif
if (EXTERNAL_SSE2(cpu_flags)) {
c->idct_put = xvid_idct_sse2_put;
diff --git a/libavcodec/x86/xvididct_mmx.c b/libavcodec/x86/xvididct_mmx.c
deleted file mode 100644
index 57aa8c0690..0000000000
--- a/libavcodec/x86/xvididct_mmx.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * XVID MPEG-4 VIDEO CODEC
- * - MMX and XMM forward discrete cosine transform -
- *
- * Copyright(C) 2001 Peter Ross <pross@xvid.org>
- *
- * Originally provided by Intel at AP-922
- * http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
- * (See more app notes at http://developer.intel.com/vtune/cbts/strmsimd/appnotes.htm)
- * but in a limited edition.
- * New macro implements a column part for precise iDCT
- * The routine precision now satisfies IEEE standard 1180-1990.
- *
- * Copyright(C) 2000-2001 Peter Gubanov <peter@elecard.net.ru>
- * Rounding trick Copyright(C) 2000 Michel Lespinasse <walken@zoy.org>
- *
- * http://www.elecard.com/peter/idct.html
- * http://www.linuxvideo.org/mpeg2dec/
- *
- * These examples contain code fragments for first stage iDCT 8x8
- * (for rows) and first stage DCT 8x8 (for columns)
- *
- * conversion to gcc syntax by Michael Niedermayer
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <inttypes.h>
-
-#include "config.h"
-
-#include "libavutil/mem.h"
-
-#include "libavcodec/avcodec.h"
-#include "libavcodec/idctdsp.h"
-
-#include "idctdsp.h"
-#include "xvididct.h"
-
-#if HAVE_MMX_INLINE
-
-// -----------------------------------------------------------------------------
-// Various memory constants (trigonometric values or rounding values)
-// -----------------------------------------------------------------------------
-
-DECLARE_ALIGNED(8, static const int16_t, tg_1_16)[4 * 4] = {
- 13036, 13036, 13036, 13036, // tg * (2 << 16) + 0.5
- 27146, 27146, 27146, 27146, // tg * (2 << 16) + 0.5
- -21746, -21746, -21746, -21746, // tg * (2 << 16) + 0.5
- 23170, 23170, 23170, 23170
-}; // cos * (2 << 15) + 0.5
-
-DECLARE_ALIGNED(8, static const int32_t, rounder_0)[2 * 8] = {
- 65536, 65536,
- 3597, 3597,
- 2260, 2260,
- 1203, 1203,
- 0, 0,
- 120, 120,
- 512, 512,
- 512, 512
-};
-
-// -----------------------------------------------------------------------------
-//
-// The first stage iDCT 8x8 - inverse DCTs of rows
-//
-// -----------------------------------------------------------------------------
-// The 8-point inverse DCT direct algorithm
-// -----------------------------------------------------------------------------
-//
-// static const short w[32] = {
-// FIX(cos_4_16), FIX(cos_2_16), FIX(cos_4_16), FIX(cos_6_16),
-// FIX(cos_4_16), FIX(cos_6_16), -FIX(cos_4_16), -FIX(cos_2_16),
-// FIX(cos_4_16), -FIX(cos_6_16), -FIX(cos_4_16), FIX(cos_2_16),
-// FIX(cos_4_16), -FIX(cos_2_16), FIX(cos_4_16), -FIX(cos_6_16),
-// FIX(cos_1_16), FIX(cos_3_16), FIX(cos_5_16), FIX(cos_7_16),
-// FIX(cos_3_16), -FIX(cos_7_16), -FIX(cos_1_16), -FIX(cos_5_16),
-// FIX(cos_5_16), -FIX(cos_1_16), FIX(cos_7_16), FIX(cos_3_16),
-// FIX(cos_7_16), -FIX(cos_5_16), FIX(cos_3_16), -FIX(cos_1_16) };
-//
-// #define DCT_8_INV_ROW(x, y)
-// {
-// int a0, a1, a2, a3, b0, b1, b2, b3;
-//
-// a0 = x[0] * w[0] + x[2] * w[1] + x[4] * w[2] + x[6] * w[3];
-// a1 = x[0] * w[4] + x[2] * w[5] + x[4] * w[6] + x[6] * w[7];
-// a2 = x[0] * w[8] + x[2] * w[9] + x[4] * w[10] + x[6] * w[11];
-// a3 = x[0] * w[12] + x[2] * w[13] + x[4] * w[14] + x[6] * w[15];
-// b0 = x[1] * w[16] + x[3] * w[17] + x[5] * w[18] + x[7] * w[19];
-// b1 = x[1] * w[20] + x[3] * w[21] + x[5] * w[22] + x[7] * w[23];
-// b2 = x[1] * w[24] + x[3] * w[25] + x[5] * w[26] + x[7] * w[27];
-// b3 = x[1] * w[28] + x[3] * w[29] + x[5] * w[30] + x[7] * w[31];
-//
-// y[0] = SHIFT_ROUND(a0 + b0);
-// y[1] = SHIFT_ROUND(a1 + b1);
-// y[2] = SHIFT_ROUND(a2 + b2);
-// y[3] = SHIFT_ROUND(a3 + b3);
-// y[4] = SHIFT_ROUND(a3 - b3);
-// y[5] = SHIFT_ROUND(a2 - b2);
-// y[6] = SHIFT_ROUND(a1 - b1);
-// y[7] = SHIFT_ROUND(a0 - b0);
-// }
-//
-// -----------------------------------------------------------------------------
-//
-// In this implementation the outputs of the iDCT-1D are multiplied
-// for rows 0,4 - by cos_4_16,
-// for rows 1,7 - by cos_1_16,
-// for rows 2,6 - by cos_2_16,
-// for rows 3,5 - by cos_3_16
-// and are shifted to the left for better accuracy.
-//
-// For the constants used,
-// FIX(float_const) = (short) (float_const * (1 << 15) + 0.5)
-//
-// -----------------------------------------------------------------------------
-
-// -----------------------------------------------------------------------------
-// Tables for mmx processors
-// -----------------------------------------------------------------------------
-
-// Table for rows 0,4 - constants are multiplied by cos_4_16
-DECLARE_ALIGNED(8, static const int16_t, tab_i_04_mmx)[32 * 4] = {
- 16384, 16384, 16384, -16384, // movq-> w06 w04 w02 w00
- 21407, 8867, 8867, -21407, // w07 w05 w03 w01
- 16384, -16384, 16384, 16384, // w14 w12 w10 w08
- -8867, 21407, -21407, -8867, // w15 w13 w11 w09
- 22725, 12873, 19266, -22725, // w22 w20 w18 w16
- 19266, 4520, -4520, -12873, // w23 w21 w19 w17
- 12873, 4520, 4520, 19266, // w30 w28 w26 w24
- -22725, 19266, -12873, -22725, // w31 w29 w27 w25
-// Table for rows 1,7 - constants are multiplied by cos_1_16
- 22725, 22725, 22725, -22725, // movq-> w06 w04 w02 w00
- 29692, 12299, 12299, -29692, // w07 w05 w03 w01
- 22725, -22725, 22725, 22725, // w14 w12 w10 w08
- -12299, 29692, -29692, -12299, // w15 w13 w11 w09
- 31521, 17855, 26722, -31521, // w22 w20 w18 w16
- 26722, 6270, -6270, -17855, // w23 w21 w19 w17
- 17855, 6270, 6270, 26722, // w30 w28 w26 w24
- -31521, 26722, -17855, -31521, // w31 w29 w27 w25
-// Table for rows 2,6 - constants are multiplied by cos_2_16
- 21407, 21407, 21407, -21407, // movq-> w06 w04 w02 w00
- 27969, 11585, 11585, -27969, // w07 w05 w03 w01
- 21407, -21407, 21407, 21407, // w14 w12 w10 w08
- -11585, 27969, -27969, -11585, // w15 w13 w11 w09
- 29692, 16819, 25172, -29692, // w22 w20 w18 w16
- 25172, 5906, -5906, -16819, // w23 w21 w19 w17
- 16819, 5906, 5906, 25172, // w30 w28 w26 w24
- -29692, 25172, -16819, -29692, // w31 w29 w27 w25
-// Table for rows 3,5 - constants are multiplied by cos_3_16
- 19266, 19266, 19266, -19266, // movq-> w06 w04 w02 w00
- 25172, 10426, 10426, -25172, // w07 w05 w03 w01
- 19266, -19266, 19266, 19266, // w14 w12 w10 w08
- -10426, 25172, -25172, -10426, // w15 w13 w11 w09
- 26722, 15137, 22654, -26722, // w22 w20 w18 w16
- 22654, 5315, -5315, -15137, // w23 w21 w19 w17
- 15137, 5315, 5315, 22654, // w30 w28 w26 w24
- -26722, 22654, -15137, -26722, // w31 w29 w27 w25
-};
-// -----------------------------------------------------------------------------
-// Tables for xmm processors
-// -----------------------------------------------------------------------------
-
-// %3 for rows 0,4 - constants are multiplied by cos_4_16
-DECLARE_ALIGNED(8, static const int16_t, tab_i_04_xmm)[32 * 4] = {
- 16384, 21407, 16384, 8867, // movq-> w05 w04 w01 w00
- 16384, 8867, -16384, -21407, // w07 w06 w03 w02
- 16384, -8867, 16384, -21407, // w13 w12 w09 w08
- -16384, 21407, 16384, -8867, // w15 w14 w11 w10
- 22725, 19266, 19266, -4520, // w21 w20 w17 w16
- 12873, 4520, -22725, -12873, // w23 w22 w19 w18
- 12873, -22725, 4520, -12873, // w29 w28 w25 w24
- 4520, 19266, 19266, -22725, // w31 w30 w27 w26
-// %3 for rows 1,7 - constants are multiplied by cos_1_16
- 22725, 29692, 22725, 12299, // movq-> w05 w04 w01 w00
- 22725, 12299, -22725, -29692, // w07 w06 w03 w02
- 22725, -12299, 22725, -29692, // w13 w12 w09 w08
- -22725, 29692, 22725, -12299, // w15 w14 w11 w10
- 31521, 26722, 26722, -6270, // w21 w20 w17 w16
- 17855, 6270, -31521, -17855, // w23 w22 w19 w18
- 17855, -31521, 6270, -17855, // w29 w28 w25 w24
- 6270, 26722, 26722, -31521, // w31 w30 w27 w26
-// %3 for rows 2,6 - constants are multiplied by cos_2_16
- 21407, 27969, 21407, 11585, // movq-> w05 w04 w01 w00
- 21407, 11585, -21407, -27969, // w07 w06 w03 w02
- 21407, -11585, 21407, -27969, // w13 w12 w09 w08
- -21407, 27969, 21407, -11585, // w15 w14 w11 w10
- 29692, 25172, 25172, -5906, // w21 w20 w17 w16
- 16819, 5906, -29692, -16819, // w23 w22 w19 w18
- 16819, -29692, 5906, -16819, // w29 w28 w25 w24
- 5906, 25172, 25172, -29692, // w31 w30 w27 w26
-// %3 for rows 3,5 - constants are multiplied by cos_3_16
- 19266, 25172, 19266, 10426, // movq-> w05 w04 w01 w00
- 19266, 10426, -19266, -25172, // w07 w06 w03 w02
- 19266, -10426, 19266, -25172, // w13 w12 w09 w08
- -19266, 25172, 19266, -10426, // w15 w14 w11 w10
- 26722, 22654, 22654, -5315, // w21 w20 w17 w16
- 15137, 5315, -26722, -15137, // w23 w22 w19 w18
- 15137, -26722, 5315, -15137, // w29 w28 w25 w24
- 5315, 22654, 22654, -26722, // w31 w30 w27 w26
-};
-// =============================================================================
-// Helper macros for the code
-// =============================================================================
-
-// -----------------------------------------------------------------------------
-// DCT_8_INV_ROW_MMX( INP, OUT, TABLE, ROUNDER
-// -----------------------------------------------------------------------------
-
-#define DCT_8_INV_ROW_MMX(A1, A2, A3, A4) \
- "movq "#A1", %%mm0 \n\t" /* 0 ; x3 x2 x1 x0 */ \
- "movq 8+"#A1", %%mm1 \n\t" /* 1 ; x7 x6 x5 x4 */ \
- "movq %%mm0, %%mm2 \n\t" /* 2 ; x3 x2 x1 x0 */ \
- "movq "#A3", %%mm3 \n\t" /* 3 ; w06 w04 w02 w00 */ \
- "punpcklwd %%mm1, %%mm0 \n\t" /* x5 x1 x4 x0 */ \
- "movq %%mm0, %%mm5 \n\t" /* 5 ; x5 x1 x4 x0 */ \
- "punpckldq %%mm0, %%mm0 \n\t" /* x4 x0 x4 x0 */ \
- "movq 8+"#A3", %%mm4 \n\t" /* 4 ; w07 w05 w03 w01 */ \
- "punpckhwd %%mm1, %%mm2 \n\t" /* 1 ; x7 x3 x6 x2 */ \
- "pmaddwd %%mm0, %%mm3 \n\t" /* x4*w06+x0*w04 x4*w02+x0*w00 */ \
- "movq %%mm2, %%mm6 \n\t" /* 6 ; x7 x3 x6 x2 */ \
- "movq 32+"#A3", %%mm1 \n\t" /* 1 ; w22 w20 w18 w16 */ \
- "punpckldq %%mm2, %%mm2 \n\t" /* x6 x2 x6 x2 */ \
- "pmaddwd %%mm2, %%mm4 \n\t" /* x6*w07+x2*w05 x6*w03+x2*w01 */ \
- "punpckhdq %%mm5, %%mm5 \n\t" /* x5 x1 x5 x1 */ \
- "pmaddwd 16+"#A3", %%mm0 \n\t" /* x4*w14+x0*w12 x4*w10+x0*w08 */ \
- "punpckhdq %%mm6, %%mm6 \n\t" /* x7 x3 x7 x3 */ \
- "movq 40+ "#A3", %%mm7 \n\t" /* 7 ; w23 w21 w19 w17 */ \
- "pmaddwd %%mm5, %%mm1 \n\t" /* x5*w22+x1*w20 x5*w18+x1*w16 */ \
- "paddd "#A4", %%mm3 \n\t" /* +%4 */ \
- "pmaddwd %%mm6, %%mm7 \n\t" /* x7*w23+x3*w21 x7*w19+x3*w17 */ \
- "pmaddwd 24+"#A3", %%mm2 \n\t" /* x6*w15+x2*w13 x6*w11+x2*w09 */ \
- "paddd %%mm4, %%mm3 \n\t" /* 4 ; a1=sum(even1) a0=sum(even0) */ \
- "pmaddwd 48+"#A3", %%mm5 \n\t" /* x5*w30+x1*w28 x5*w26+x1*w24 */ \
- "movq %%mm3, %%mm4 \n\t" /* 4 ; a1 a0 */ \
- "pmaddwd 56+"#A3", %%mm6 \n\t" /* x7*w31+x3*w29 x7*w27+x3*w25 */ \
- "paddd %%mm7, %%mm1 \n\t" /* 7 ; b1=sum(odd1) b0=sum(odd0) */ \
- "paddd "#A4", %%mm0 \n\t" /* +%4 */ \
- "psubd %%mm1, %%mm3 \n\t" /* a1-b1 a0-b0 */ \
- "psrad $11, %%mm3 \n\t" /* y6=a1-b1 y7=a0-b0 */ \
- "paddd %%mm4, %%mm1 \n\t" /* 4 ; a1+b1 a0+b0 */ \
- "paddd %%mm2, %%mm0 \n\t" /* 2 ; a3=sum(even3) a2=sum(even2) */ \
- "psrad $11, %%mm1 \n\t" /* y1=a1+b1 y0=a0+b0 */ \
- "paddd %%mm6, %%mm5 \n\t" /* 6 ; b3=sum(odd3) b2=sum(odd2) */ \
- "movq %%mm0, %%mm4 \n\t" /* 4 ; a3 a2 */ \
- "paddd %%mm5, %%mm0 \n\t" /* a3+b3 a2+b2 */ \
- "psubd %%mm5, %%mm4 \n\t" /* 5 ; a3-b3 a2-b2 */ \
- "psrad $11, %%mm0 \n\t" /* y3=a3+b3 y2=a2+b2 */ \
- "psrad $11, %%mm4 \n\t" /* y4=a3-b3 y5=a2-b2 */ \
- "packssdw %%mm0, %%mm1 \n\t" /* 0 ; y3 y2 y1 y0 */ \
- "packssdw %%mm3, %%mm4 \n\t" /* 3 ; y6 y7 y4 y5 */ \
- "movq %%mm4, %%mm7 \n\t" /* 7 ; y6 y7 y4 y5 */ \
- "psrld $16, %%mm4 \n\t" /* 0 y6 0 y4 */ \
- "pslld $16, %%mm7 \n\t" /* y7 0 y5 0 */ \
- "movq %%mm1, "#A2" \n\t" /* 1 ; save y3 y2 y1 y0 */ \
- "por %%mm4, %%mm7 \n\t" /* 4 ; y7 y6 y5 y4 */ \
- "movq %%mm7, 8+"#A2" \n\t" /* 7 ; save y7 y6 y5 y4 */ \
-
-
-// -----------------------------------------------------------------------------
-// DCT_8_INV_ROW_XMM( INP, OUT, TABLE, ROUNDER
-// -----------------------------------------------------------------------------
-
-#define DCT_8_INV_ROW_XMM(A1, A2, A3, A4) \
- "movq "#A1", %%mm0 \n\t" /* 0 ; x3 x2 x1 x0 */ \
- "movq 8+"#A1", %%mm1 \n\t" /* 1 ; x7 x6 x5 x4 */ \
- "movq %%mm0, %%mm2 \n\t" /* 2 ; x3 x2 x1 x0 */ \
- "movq "#A3", %%mm3 \n\t" /* 3 ; w05 w04 w01 w00 */ \
- "pshufw $0x88, %%mm0, %%mm0 \n\t" /* x2 x0 x2 x0 */ \
- "movq 8+"#A3", %%mm4 \n\t" /* 4 ; w07 w06 w03 w02 */ \
- "movq %%mm1, %%mm5 \n\t" /* 5 ; x7 x6 x5 x4 */ \
- "pmaddwd %%mm0, %%mm3 \n\t" /* x2*w05+x0*w04 x2*w01+x0*w00 */ \
- "movq 32+"#A3", %%mm6 \n\t" /* 6 ; w21 w20 w17 w16 */ \
- "pshufw $0x88, %%mm1, %%mm1 \n\t" /* x6 x4 x6 x4 */ \
- "pmaddwd %%mm1, %%mm4 \n\t" /* x6*w07+x4*w06 x6*w03+x4*w02 */ \
- "movq 40+"#A3", %%mm7 \n\t" /* 7; w23 w22 w19 w18 */ \
- "pshufw $0xdd, %%mm2, %%mm2 \n\t" /* x3 x1 x3 x1 */ \
- "pmaddwd %%mm2, %%mm6 \n\t" /* x3*w21+x1*w20 x3*w17+x1*w16 */ \
- "pshufw $0xdd, %%mm5, %%mm5 \n\t" /* x7 x5 x7 x5 */ \
- "pmaddwd %%mm5, %%mm7 \n\t" /* x7*w23+x5*w22 x7*w19+x5*w18 */ \
- "paddd "#A4", %%mm3 \n\t" /* +%4 */ \
- "pmaddwd 16+"#A3", %%mm0 \n\t" /* x2*w13+x0*w12 x2*w09+x0*w08 */ \
- "paddd %%mm4, %%mm3 \n\t" /* 4 ; a1=sum(even1) a0=sum(even0) */ \
- "pmaddwd 24+"#A3", %%mm1 \n\t" /* x6*w15+x4*w14 x6*w11+x4*w10 */ \
- "movq %%mm3, %%mm4 \n\t" /* 4 ; a1 a0 */ \
- "pmaddwd 48+"#A3", %%mm2 \n\t" /* x3*w29+x1*w28 x3*w25+x1*w24 */ \
- "paddd %%mm7, %%mm6 \n\t" /* 7 ; b1=sum(odd1) b0=sum(odd0) */ \
- "pmaddwd 56+"#A3", %%mm5 \n\t" /* x7*w31+x5*w30 x7*w27+x5*w26 */ \
- "paddd %%mm6, %%mm3 \n\t" /* a1+b1 a0+b0 */ \
- "paddd "#A4", %%mm0 \n\t" /* +%4 */ \
- "psrad $11, %%mm3 \n\t" /* y1=a1+b1 y0=a0+b0 */ \
- "paddd %%mm1, %%mm0 \n\t" /* 1 ; a3=sum(even3) a2=sum(even2) */ \
- "psubd %%mm6, %%mm4 \n\t" /* 6 ; a1-b1 a0-b0 */ \
- "movq %%mm0, %%mm7 \n\t" /* 7 ; a3 a2 */ \
- "paddd %%mm5, %%mm2 \n\t" /* 5 ; b3=sum(odd3) b2=sum(odd2) */ \
- "paddd %%mm2, %%mm0 \n\t" /* a3+b3 a2+b2 */ \
- "psrad $11, %%mm4 \n\t" /* y6=a1-b1 y7=a0-b0 */ \
- "psubd %%mm2, %%mm7 \n\t" /* 2 ; a3-b3 a2-b2 */ \
- "psrad $11, %%mm0 \n\t" /* y3=a3+b3 y2=a2+b2 */ \
- "psrad $11, %%mm7 \n\t" /* y4=a3-b3 y5=a2-b2 */ \
- "packssdw %%mm0, %%mm3 \n\t" /* 0 ; y3 y2 y1 y0 */ \
- "packssdw %%mm4, %%mm7 \n\t" /* 4 ; y6 y7 y4 y5 */ \
- "movq %%mm3, "#A2" \n\t" /* 3 ; save y3 y2 y1 y0 */ \
- "pshufw $0xb1, %%mm7, %%mm7 \n\t" /* y7 y6 y5 y4 */ \
- "movq %%mm7, 8+"#A2" \n\t" /* 7 ; save y7 y6 y5 y4 */ \
-
-
-// -----------------------------------------------------------------------------
-//
-// The first stage DCT 8x8 - forward DCTs of columns
-//
-// The %2puts are multiplied
-// for rows 0,4 - on cos_4_16,
-// for rows 1,7 - on cos_1_16,
-// for rows 2,6 - on cos_2_16,
-// for rows 3,5 - on cos_3_16
-// and are shifted to the left for rise of accuracy
-//
-// -----------------------------------------------------------------------------
-//
-// The 8-point scaled forward DCT algorithm (26a8m)
-//
-// -----------------------------------------------------------------------------
-//
-//#define DCT_8_FRW_COL(x, y)
-// {
-// short t0, t1, t2, t3, t4, t5, t6, t7;
-// short tp03, tm03, tp12, tm12, tp65, tm65;
-// short tp465, tm465, tp765, tm765;
-//
-// t0 = LEFT_SHIFT(x[0] + x[7]);
-// t1 = LEFT_SHIFT(x[1] + x[6]);
-// t2 = LEFT_SHIFT(x[2] + x[5]);
-// t3 = LEFT_SHIFT(x[3] + x[4]);
-// t4 = LEFT_SHIFT(x[3] - x[4]);
-// t5 = LEFT_SHIFT(x[2] - x[5]);
-// t6 = LEFT_SHIFT(x[1] - x[6]);
-// t7 = LEFT_SHIFT(x[0] - x[7]);
-//
-// tp03 = t0 + t3;
-// tm03 = t0 - t3;
-// tp12 = t1 + t2;
-// tm12 = t1 - t2;
-//
-// y[0] = tp03 + tp12;
-// y[4] = tp03 - tp12;
-//
-// y[2] = tm03 + tm12 * tg_2_16;
-// y[6] = tm03 * tg_2_16 - tm12;
-//
-// tp65 = (t6 + t5) * cos_4_16;
-// tm65 = (t6 - t5) * cos_4_16;
-//
-// tp765 = t7 + tp65;
-// tm765 = t7 - tp65;
-// tp465 = t4 + tm65;
-// tm465 = t4 - tm65;
-//
-// y[1] = tp765 + tp465 * tg_1_16;
-// y[7] = tp765 * tg_1_16 - tp465;
-// y[5] = tm765 * tg_3_16 + tm465;
-// y[3] = tm765 - tm465 * tg_3_16;
-// }
-//
-// -----------------------------------------------------------------------------
-
-// -----------------------------------------------------------------------------
-// DCT_8_INV_COL_4 INP,OUT
-// -----------------------------------------------------------------------------
-
-#define DCT_8_INV_COL(A1, A2) \
- "movq 2*8(%3), %%mm0 \n\t" \
- "movq 16*3+"#A1", %%mm3 \n\t" \
- "movq %%mm0, %%mm1 \n\t" /* tg_3_16 */ \
- "movq 16*5+"#A1", %%mm5 \n\t" \
- "pmulhw %%mm3, %%mm0 \n\t" /* x3*(tg_3_16-1) */ \
- "movq (%3), %%mm4 \n\t" \
- "pmulhw %%mm5, %%mm1 \n\t" /* x5*(tg_3_16-1) */ \
- "movq 16*7+"#A1", %%mm7 \n\t" \
- "movq %%mm4, %%mm2 \n\t" /* tg_1_16 */ \
- "movq 16*1+"#A1", %%mm6 \n\t" \
- "pmulhw %%mm7, %%mm4 \n\t" /* x7*tg_1_16 */ \
- "paddsw %%mm3, %%mm0 \n\t" /* x3*tg_3_16 */ \
- "pmulhw %%mm6, %%mm2 \n\t" /* x1*tg_1_16 */ \
- "paddsw %%mm3, %%mm1 \n\t" /* x3+x5*(tg_3_16-1) */ \
- "psubsw %%mm5, %%mm0 \n\t" /* x3*tg_3_16-x5 = tm35 */ \
- "movq 3*8(%3), %%mm3 \n\t" \
- "paddsw %%mm5, %%mm1 \n\t" /* x3+x5*tg_3_16 = tp35 */ \
- "paddsw %%mm6, %%mm4 \n\t" /* x1+tg_1_16*x7 = tp17 */ \
- "psubsw %%mm7, %%mm2 \n\t" /* x1*tg_1_16-x7 = tm17 */ \
- "movq %%mm4, %%mm5 \n\t" /* tp17 */ \
- "movq %%mm2, %%mm6 \n\t" /* tm17 */ \
- "paddsw %%mm1, %%mm5 \n\t" /* tp17+tp35 = b0 */ \
- "psubsw %%mm0, %%mm6 \n\t" /* tm17-tm35 = b3 */ \
- "psubsw %%mm1, %%mm4 \n\t" /* tp17-tp35 = t1 */ \
- "paddsw %%mm0, %%mm2 \n\t" /* tm17+tm35 = t2 */ \
- "movq 1*8(%3), %%mm7 \n\t" \
- "movq %%mm4, %%mm1 \n\t" /* t1 */ \
- "movq %%mm5, 3*16+"#A2" \n\t" /* save b0 */ \
- "paddsw %%mm2, %%mm1 \n\t" /* t1+t2 */ \
- "movq %%mm6, 5*16+"#A2" \n\t" /* save b3 */ \
- "psubsw %%mm2, %%mm4 \n\t" /* t1-t2 */ \
- "movq 2*16+"#A1", %%mm5 \n\t" \
- "movq %%mm7, %%mm0 \n\t" /* tg_2_16 */ \
- "movq 6*16+"#A1", %%mm6 \n\t" \
- "pmulhw %%mm5, %%mm0 \n\t" /* x2*tg_2_16 */ \
- "pmulhw %%mm6, %%mm7 \n\t" /* x6*tg_2_16 */ \
- "pmulhw %%mm3, %%mm1 \n\t" /* ocos_4_16*(t1+t2) = b1/2 */ \
- "movq 0*16+"#A1", %%mm2 \n\t" \
- "pmulhw %%mm3, %%mm4 \n\t" /* ocos_4_16*(t1-t2) = b2/2 */ \
- "psubsw %%mm6, %%mm0 \n\t" /* t2*tg_2_16-x6 = tm26 */ \
- "movq %%mm2, %%mm3 \n\t" /* x0 */ \
- "movq 4*16+"#A1", %%mm6 \n\t" \
- "paddsw %%mm5, %%mm7 \n\t" /* x2+x6*tg_2_16 = tp26 */ \
- "paddsw %%mm6, %%mm2 \n\t" /* x0+x4 = tp04 */ \
- "psubsw %%mm6, %%mm3 \n\t" /* x0-x4 = tm04 */ \
- "movq %%mm2, %%mm5 \n\t" /* tp04 */ \
- "movq %%mm3, %%mm6 \n\t" /* tm04 */ \
- "psubsw %%mm7, %%mm2 \n\t" /* tp04-tp26 = a3 */ \
- "paddsw %%mm0, %%mm3 \n\t" /* tm04+tm26 = a1 */ \
- "paddsw %%mm1, %%mm1 \n\t" /* b1 */ \
- "paddsw %%mm4, %%mm4 \n\t" /* b2 */ \
- "paddsw %%mm7, %%mm5 \n\t" /* tp04+tp26 = a0 */ \
- "psubsw %%mm0, %%mm6 \n\t" /* tm04-tm26 = a2 */ \
- "movq %%mm3, %%mm7 \n\t" /* a1 */ \
- "movq %%mm6, %%mm0 \n\t" /* a2 */ \
- "paddsw %%mm1, %%mm3 \n\t" /* a1+b1 */ \
- "paddsw %%mm4, %%mm6 \n\t" /* a2+b2 */ \
- "psraw $6, %%mm3 \n\t" /* dst1 */ \
- "psubsw %%mm1, %%mm7 \n\t" /* a1-b1 */ \
- "psraw $6, %%mm6 \n\t" /* dst2 */ \
- "psubsw %%mm4, %%mm0 \n\t" /* a2-b2 */ \
- "movq 3*16+"#A2", %%mm1 \n\t" /* load b0 */ \
- "psraw $6, %%mm7 \n\t" /* dst6 */ \
- "movq %%mm5, %%mm4 \n\t" /* a0 */ \
- "psraw $6, %%mm0 \n\t" /* dst5 */ \
- "movq %%mm3, 1*16+"#A2" \n\t" \
- "paddsw %%mm1, %%mm5 \n\t" /* a0+b0 */ \
- "movq %%mm6, 2*16+"#A2" \n\t" \
- "psubsw %%mm1, %%mm4 \n\t" /* a0-b0 */ \
- "movq 5*16+"#A2", %%mm3 \n\t" /* load b3 */ \
- "psraw $6, %%mm5 \n\t" /* dst0 */ \
- "movq %%mm2, %%mm6 \n\t" /* a3 */ \
- "psraw $6, %%mm4 \n\t" /* dst7 */ \
- "movq %%mm0, 5*16+"#A2" \n\t" \
- "paddsw %%mm3, %%mm2 \n\t" /* a3+b3 */ \
- "movq %%mm7, 6*16+"#A2" \n\t" \
- "psubsw %%mm3, %%mm6 \n\t" /* a3-b3 */ \
- "movq %%mm5, 0*16+"#A2" \n\t" \
- "psraw $6, %%mm2 \n\t" /* dst3 */ \
- "movq %%mm4, 7*16+"#A2" \n\t" \
- "psraw $6, %%mm6 \n\t" /* dst4 */ \
- "movq %%mm2, 3*16+"#A2" \n\t" \
- "movq %%mm6, 4*16+"#A2" \n\t" \
-
-// =============================================================================
-// Code
-// =============================================================================
-
-// -----------------------------------------------------------------------------
-// void idct_mmx(uint16_t block[64]);
-// -----------------------------------------------------------------------------
-
-void ff_xvid_idct_mmx(short *block)
-{
- __asm__ volatile (
- // # Process each row
- DCT_8_INV_ROW_MMX(0 * 16(%0), 0 * 16(%0), 64 * 0(%2), 8 * 0(%1))
- DCT_8_INV_ROW_MMX(1 * 16(%0), 1 * 16(%0), 64 * 1(%2), 8 * 1(%1))
- DCT_8_INV_ROW_MMX(2 * 16(%0), 2 * 16(%0), 64 * 2(%2), 8 * 2(%1))
- DCT_8_INV_ROW_MMX(3 * 16(%0), 3 * 16(%0), 64 * 3(%2), 8 * 3(%1))
- DCT_8_INV_ROW_MMX(4 * 16(%0), 4 * 16(%0), 64 * 0(%2), 8 * 4(%1))
- DCT_8_INV_ROW_MMX(5 * 16(%0), 5 * 16(%0), 64 * 3(%2), 8 * 5(%1))
- DCT_8_INV_ROW_MMX(6 * 16(%0), 6 * 16(%0), 64 * 2(%2), 8 * 6(%1))
- DCT_8_INV_ROW_MMX(7 * 16(%0), 7 * 16(%0), 64 * 1(%2), 8 * 7(%1))
-
- // # Process the columns (4 at a time)
- DCT_8_INV_COL(0(%0), 0(%0))
- DCT_8_INV_COL(8(%0), 8(%0))
- :: "r" (block), "r" (rounder_0), "r" (tab_i_04_mmx), "r" (tg_1_16));
-}
-
-void ff_xvid_idct_mmx_put(uint8_t *dest, int line_size, int16_t *block)
-{
- ff_xvid_idct_mmx(block);
- ff_put_pixels_clamped(block, dest, line_size);
-}
-
-void ff_xvid_idct_mmx_add(uint8_t *dest, int line_size, int16_t *block)
-{
- ff_xvid_idct_mmx(block);
- ff_add_pixels_clamped(block, dest, line_size);
-}
-
-#endif /* HAVE_MMX_INLINE */
-
-#if HAVE_MMXEXT_INLINE
-
-// -----------------------------------------------------------------------------
-// void idct_xmm(uint16_t block[64]);
-// -----------------------------------------------------------------------------
-
-void ff_xvid_idct_mmxext(short *block)
-{
- __asm__ volatile (
- // # Process each row
- DCT_8_INV_ROW_XMM(0 * 16(%0), 0 * 16(%0), 64 * 0(%2), 8 * 0(%1))
- DCT_8_INV_ROW_XMM(1 * 16(%0), 1 * 16(%0), 64 * 1(%2), 8 * 1(%1))
- DCT_8_INV_ROW_XMM(2 * 16(%0), 2 * 16(%0), 64 * 2(%2), 8 * 2(%1))
- DCT_8_INV_ROW_XMM(3 * 16(%0), 3 * 16(%0), 64 * 3(%2), 8 * 3(%1))
- DCT_8_INV_ROW_XMM(4 * 16(%0), 4 * 16(%0), 64 * 0(%2), 8 * 4(%1))
- DCT_8_INV_ROW_XMM(5 * 16(%0), 5 * 16(%0), 64 * 3(%2), 8 * 5(%1))
- DCT_8_INV_ROW_XMM(6 * 16(%0), 6 * 16(%0), 64 * 2(%2), 8 * 6(%1))
- DCT_8_INV_ROW_XMM(7 * 16(%0), 7 * 16(%0), 64 * 1(%2), 8 * 7(%1))
-
- // # Process the columns (4 at a time)
- DCT_8_INV_COL(0(%0), 0(%0))
- DCT_8_INV_COL(8(%0), 8(%0))
- :: "r" (block), "r" (rounder_0), "r" (tab_i_04_xmm), "r" (tg_1_16));
-}
-
-void ff_xvid_idct_mmxext_put(uint8_t *dest, int line_size, int16_t *block)
-{
- ff_xvid_idct_mmxext(block);
- ff_put_pixels_clamped(block, dest, line_size);
-}
-
-void ff_xvid_idct_mmxext_add(uint8_t *dest, int line_size, int16_t *block)
-{
- ff_xvid_idct_mmxext(block);
- ff_add_pixels_clamped(block, dest, line_size);
-}
-
-#endif /* HAVE_MMXEXT_INLINE */
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-11 21:46:22 +0000