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cavs: convert idct from inline asm to yasm.

This commit is contained in:
Ronald S. Bultje 2017-04-04 11:55:16 -04:00
parent b51d7d89f8
commit c9d98c5649
3 changed files with 171 additions and 160 deletions
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1
libavcodec/x86/Makefile
View File

@ -142,6 +142,7 @@ YASM-OBJS-$(CONFIG_ADPCM_G722_DECODER) += x86/g722dsp.o
YASM-OBJS-$(CONFIG_ADPCM_G722_ENCODER) += x86/g722dsp.o
YASM-OBJS-$(CONFIG_ALAC_DECODER) += x86/alacdsp.o
YASM-OBJS-$(CONFIG_APNG_DECODER) += x86/pngdsp.o
YASM-OBJS-$(CONFIG_CAVS_DECODER) += x86/cavsidct.o
YASM-OBJS-$(CONFIG_DCA_DECODER) += x86/dcadsp.o x86/synth_filter.o
YASM-OBJS-$(CONFIG_DIRAC_DECODER) += x86/diracdsp.o \
x86/dirac_dwt.o

165
libavcodec/x86/cavsdsp.c
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@ -34,172 +34,19 @@
#include "idctdsp.h"
#include "config.h"
#if HAVE_MMX_INLINE
/* in/out: mma=mma+mmb, mmb=mmb-mma */
#define SUMSUB_BA( a, b ) \
"paddw "#b", "#a" \n\t"\
"paddw "#b", "#b" \n\t"\
"psubw "#a", "#b" \n\t"
#if HAVE_MMX_EXTERNAL
/*****************************************************************************
*
* inverse transform
*
****************************************************************************/
static inline void cavs_idct8_1d(int16_t *block, uint64_t bias)
{
__asm__ volatile(
"movq 112(%0), %%mm4 \n\t" /* mm4 = src7 */
"movq 16(%0), %%mm5 \n\t" /* mm5 = src1 */
"movq 80(%0), %%mm2 \n\t" /* mm2 = src5 */
"movq 48(%0), %%mm7 \n\t" /* mm7 = src3 */
"movq %%mm4, %%mm0 \n\t"
"movq %%mm5, %%mm3 \n\t"
"movq %%mm2, %%mm6 \n\t"
"movq %%mm7, %%mm1 \n\t"
"paddw %%mm4, %%mm4 \n\t" /* mm4 = 2*src7 */
"paddw %%mm3, %%mm3 \n\t" /* mm3 = 2*src1 */
"paddw %%mm6, %%mm6 \n\t" /* mm6 = 2*src5 */
"paddw %%mm1, %%mm1 \n\t" /* mm1 = 2*src3 */
"paddw %%mm4, %%mm0 \n\t" /* mm0 = 3*src7 */
"paddw %%mm3, %%mm5 \n\t" /* mm5 = 3*src1 */
"paddw %%mm6, %%mm2 \n\t" /* mm2 = 3*src5 */
"paddw %%mm1, %%mm7 \n\t" /* mm7 = 3*src3 */
"psubw %%mm4, %%mm5 \n\t" /* mm5 = 3*src1 - 2*src7 = a0 */
"paddw %%mm6, %%mm7 \n\t" /* mm7 = 3*src3 + 2*src5 = a1 */
"psubw %%mm2, %%mm1 \n\t" /* mm1 = 2*src3 - 3*src5 = a2 */
"paddw %%mm0, %%mm3 \n\t" /* mm3 = 2*src1 + 3*src7 = a3 */
"movq %%mm5, %%mm4 \n\t"
"movq %%mm7, %%mm6 \n\t"
"movq %%mm3, %%mm0 \n\t"
"movq %%mm1, %%mm2 \n\t"
SUMSUB_BA( %%mm7, %%mm5 ) /* mm7 = a0 + a1 mm5 = a0 - a1 */
"paddw %%mm3, %%mm7 \n\t" /* mm7 = a0 + a1 + a3 */
"paddw %%mm1, %%mm5 \n\t" /* mm5 = a0 - a1 + a2 */
"paddw %%mm7, %%mm7 \n\t"
"paddw %%mm5, %%mm5 \n\t"
"paddw %%mm6, %%mm7 \n\t" /* mm7 = b4 */
"paddw %%mm4, %%mm5 \n\t" /* mm5 = b5 */
SUMSUB_BA( %%mm1, %%mm3 ) /* mm1 = a3 + a2 mm3 = a3 - a2 */
"psubw %%mm1, %%mm4 \n\t" /* mm4 = a0 - a2 - a3 */
"movq %%mm4, %%mm1 \n\t" /* mm1 = a0 - a2 - a3 */
"psubw %%mm6, %%mm3 \n\t" /* mm3 = a3 - a2 - a1 */
"paddw %%mm1, %%mm1 \n\t"
"paddw %%mm3, %%mm3 \n\t"
"psubw %%mm2, %%mm1 \n\t" /* mm1 = b7 */
"paddw %%mm0, %%mm3 \n\t" /* mm3 = b6 */
"movq 32(%0), %%mm2 \n\t" /* mm2 = src2 */
"movq 96(%0), %%mm6 \n\t" /* mm6 = src6 */
"movq %%mm2, %%mm4 \n\t"
"movq %%mm6, %%mm0 \n\t"
"psllw $2, %%mm4 \n\t" /* mm4 = 4*src2 */
"psllw $2, %%mm6 \n\t" /* mm6 = 4*src6 */
"paddw %%mm4, %%mm2 \n\t" /* mm2 = 5*src2 */
"paddw %%mm6, %%mm0 \n\t" /* mm0 = 5*src6 */
"paddw %%mm2, %%mm2 \n\t"
"paddw %%mm0, %%mm0 \n\t"
"psubw %%mm0, %%mm4 \n\t" /* mm4 = 4*src2 - 10*src6 = a7 */
"paddw %%mm2, %%mm6 \n\t" /* mm6 = 4*src6 + 10*src2 = a6 */
"movq (%0), %%mm2 \n\t" /* mm2 = src0 */
"movq 64(%0), %%mm0 \n\t" /* mm0 = src4 */
SUMSUB_BA( %%mm0, %%mm2 ) /* mm0 = src0+src4 mm2 = src0-src4 */
"psllw $3, %%mm0 \n\t"
"psllw $3, %%mm2 \n\t"
"paddw %1, %%mm0 \n\t" /* add rounding bias */
"paddw %1, %%mm2 \n\t" /* add rounding bias */
SUMSUB_BA( %%mm6, %%mm0 ) /* mm6 = a4 + a6 mm0 = a4 - a6 */
SUMSUB_BA( %%mm4, %%mm2 ) /* mm4 = a5 + a7 mm2 = a5 - a7 */
SUMSUB_BA( %%mm7, %%mm6 ) /* mm7 = dst0 mm6 = dst7 */
SUMSUB_BA( %%mm5, %%mm4 ) /* mm5 = dst1 mm4 = dst6 */
SUMSUB_BA( %%mm3, %%mm2 ) /* mm3 = dst2 mm2 = dst5 */
SUMSUB_BA( %%mm1, %%mm0 ) /* mm1 = dst3 mm0 = dst4 */
:: "r"(block), "m"(bias)
);
}
#define SBUTTERFLY(a,b,t,n,m)\
"mov" #m " " #a ", " #t " \n\t" /* abcd */\
"punpckl" #n " " #b ", " #a " \n\t" /* aebf */\
"punpckh" #n " " #b ", " #t " \n\t" /* cgdh */\
#define TRANSPOSE4(a,b,c,d,t)\
SBUTTERFLY(a,b,t,wd,q) /* a=aebf t=cgdh */\
SBUTTERFLY(c,d,b,wd,q) /* c=imjn b=kolp */\
SBUTTERFLY(a,c,d,dq,q) /* a=aeim d=bfjn */\
SBUTTERFLY(t,b,c,dq,q) /* t=cgko c=dhlp */
void ff_cavs_idct8_mmx(int16_t *out, const int16_t *in);
static void cavs_idct8_add_mmx(uint8_t *dst, int16_t *block, ptrdiff_t stride)
{
int i;
LOCAL_ALIGNED(16, int16_t, b2, [64]);
for(i=0; i<2; i++){
cavs_idct8_1d(block + 4 * i, ff_pw_4.a);
__asm__ volatile(
"psraw $3, %%mm7 \n\t"
"psraw $3, %%mm6 \n\t"
"psraw $3, %%mm5 \n\t"
"psraw $3, %%mm4 \n\t"
"psraw $3, %%mm3 \n\t"
"psraw $3, %%mm2 \n\t"
"psraw $3, %%mm1 \n\t"
"psraw $3, %%mm0 \n\t"
"movq %%mm7, (%0) \n\t"
TRANSPOSE4( %%mm0, %%mm2, %%mm4, %%mm6, %%mm7 )
"movq %%mm0, 8(%0) \n\t"
"movq %%mm6, 24(%0) \n\t"
"movq %%mm7, 40(%0) \n\t"
"movq %%mm4, 56(%0) \n\t"
"movq (%0), %%mm7 \n\t"
TRANSPOSE4( %%mm7, %%mm5, %%mm3, %%mm1, %%mm0 )
"movq %%mm7, (%0) \n\t"
"movq %%mm1, 16(%0) \n\t"
"movq %%mm0, 32(%0) \n\t"
"movq %%mm3, 48(%0) \n\t"
:
: "r"(b2 + 32 * i)
: "memory"
);
}
for(i=0; i<2; i++){
cavs_idct8_1d(b2+4*i, ff_pw_64.a);
__asm__ volatile(
"psraw $7, %%mm7 \n\t"
"psraw $7, %%mm6 \n\t"
"psraw $7, %%mm5 \n\t"
"psraw $7, %%mm4 \n\t"
"psraw $7, %%mm3 \n\t"
"psraw $7, %%mm2 \n\t"
"psraw $7, %%mm1 \n\t"
"psraw $7, %%mm0 \n\t"
"movq %%mm7, (%0) \n\t"
"movq %%mm5, 16(%0) \n\t"
"movq %%mm3, 32(%0) \n\t"
"movq %%mm1, 48(%0) \n\t"
"movq %%mm0, 64(%0) \n\t"
"movq %%mm2, 80(%0) \n\t"
"movq %%mm4, 96(%0) \n\t"
"movq %%mm6, 112(%0) \n\t"
:: "r"(b2+4*i)
: "memory"
);
}
ff_cavs_idct8_mmx(b2, block);
ff_add_pixels_clamped(b2, dst, stride);
}
#endif /* HAVE_MMX_INLINE */
#endif /* HAVE_MMX_EXTERNAL */
#if (HAVE_MMXEXT_INLINE || HAVE_AMD3DNOW_INLINE)
@ -529,12 +376,10 @@ static av_cold void cavsdsp_init_mmx(CAVSDSPContext *c,
c->put_cavs_qpel_pixels_tab[1][0] = put_cavs_qpel8_mc00_mmx;
c->avg_cavs_qpel_pixels_tab[0][0] = avg_cavs_qpel16_mc00_mmx;
c->avg_cavs_qpel_pixels_tab[1][0] = avg_cavs_qpel8_mc00_mmx;
#endif
#if HAVE_MMX_INLINE
c->cavs_idct8_add = cavs_idct8_add_mmx;
c->idct_perm = FF_IDCT_PERM_TRANSPOSE;
#endif /* HAVE_MMX_INLINE */
#endif /* HAVE_MMX_EXTERNAL */
}
#define DSPFUNC(PFX, IDX, NUM, EXT) \

165
libavcodec/x86/cavsidct.asm Normal file
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@ -0,0 +1,165 @@
; Chinese AVS video (AVS1-P2, JiZhun profile) decoder
; Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
;
; MMX-optimized DSP functions, based on H.264 optimizations by
; Michael Niedermayer and Loren Merritt
; Conversion from gcc syntax to x264asm syntax with modifications
; by Ronald S. Bultje <rsbultje@gmail.com>
;
; 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 "libavutil/x86/x86util.asm"
cextern pw_4
cextern pw_64
SECTION .text
%macro CAVS_IDCT8_1D 2 ; source, round
mova m4, [%1+7*16] ; m4 = src7
mova m5, [%1+1*16] ; m5 = src1
mova m2, [%1+5*16] ; m2 = src5
mova m7, [%1+3*16] ; m7 = src3
mova m0, m4
mova m3, m5
mova m6, m2
mova m1, m7
paddw m4, m4 ; m4 = 2*src7
paddw m3, m3 ; m3 = 2*src1
paddw m6, m6 ; m6 = 2*src5
paddw m1, m1 ; m1 = 2*src3
paddw m0, m4 ; m0 = 3*src7
paddw m5, m3 ; m5 = 3*src1
paddw m2, m6 ; m2 = 3*src5
paddw m7, m1 ; m7 = 3*src3
psubw m5, m4 ; m5 = 3*src1 - 2*src7 = a0
paddw m7, m6 ; m7 = 3*src3 - 2*src5 = a1
psubw m1, m2 ; m1 = 2*src3 - 3*src5 = a2
paddw m3, m0 ; m3 = 2*src1 - 3*src7 = a3
mova m4, m5
mova m6, m7
mova m0, m3
mova m2, m1
SUMSUB_BA w, 7, 5 ; m7 = a0 + a1, m5 = a0 - a1
paddw m7, m3 ; m7 = a0 + a1 + a3
paddw m5, m1 ; m5 = a0 - a1 + a2
paddw m7, m7
paddw m5, m5
paddw m7, m6 ; m7 = b4
paddw m5, m4 ; m5 = b5
SUMSUB_BA w, 1, 3 ; m1 = a3 + a2, m3 = a3 - a2
psubw m4, m1 ; m4 = a0 - a2 - a3
mova m1, m4 ; m1 = a0 - a2 - a3
psubw m3, m6 ; m3 = a3 - a2 - a1
paddw m1, m1
paddw m3, m3
psubw m1, m2 ; m1 = b7
paddw m3, m0 ; m3 = b6
mova m2, [%1+2*16] ; m2 = src2
mova m6, [%1+6*16] ; m6 = src6
mova m4, m2
mova m0, m6
psllw m4, 2 ; m4 = 4*src2
psllw m6, 2 ; m6 = 4*src6
paddw m2, m4 ; m2 = 5*src2
paddw m0, m6 ; m0 = 5*src6
paddw m2, m2
paddw m0, m0
psubw m4, m0 ; m4 = 4*src2 - 10*src6 = a7
paddw m6, m2 ; m6 = 4*src6 + 10*src2 = a6
mova m2, [%1+0*16] ; m2 = src0
mova m0, [%1+4*16] ; m0 = src4
SUMSUB_BA w, 0, 2 ; m0 = src0 + src4, m2 = src0 - src4
psllw m0, 3
psllw m2, 3
paddw m0, %2 ; add rounding bias
paddw m2, %2 ; add rounding bias
SUMSUB_BA w, 6, 0 ; m6 = a4 + a6, m0 = a4 - a6
SUMSUB_BA w, 4, 2 ; m4 = a5 + a7, m2 = a5 - a7
SUMSUB_BA w, 7, 6 ; m7 = dst0, m6 = dst7
SUMSUB_BA w, 5, 4 ; m5 = dst1, m4 = dst6
SUMSUB_BA w, 3, 2 ; m3 = dst2, m2 = dst5
SUMSUB_BA w, 1, 0 ; m1 = dst3, m0 = dst4
%endmacro
INIT_MMX mmx
cglobal cavs_idct8, 2, 4, 8, 8 * 16, out, in, cnt, tmp
mov cntd, 2
mov tmpq, rsp
.loop_1:
CAVS_IDCT8_1D inq, [pw_4]
psraw m7, 3
psraw m6, 3
psraw m5, 3
psraw m4, 3
psraw m3, 3
psraw m2, 3
psraw m1, 3
psraw m0, 3
mova [tmpq], m7
TRANSPOSE4x4W 0, 2, 4, 6, 7
mova [tmpq+1*8], m0
mova [tmpq+3*8], m2
mova [tmpq+5*8], m4
mova [tmpq+7*8], m6
mova m7, [tmpq]
TRANSPOSE4x4W 7, 5, 3, 1, 0
mova [tmpq+0*8], m7
mova [tmpq+2*8], m5
mova [tmpq+4*8], m3
mova [tmpq+6*8], m1
add inq, mmsize
add tmpq, 64
dec cntd
jg .loop_1
mov cntd, 2
mov tmpq, rsp
.loop_2:
CAVS_IDCT8_1D tmpq, [pw_64]
psraw m7, 7
psraw m6, 7
psraw m5, 7
psraw m4, 7
psraw m3, 7
psraw m2, 7
psraw m1, 7
psraw m0, 7
mova [outq+0*16], m7
mova [outq+1*16], m5
mova [outq+2*16], m3
mova [outq+3*16], m1
mova [outq+4*16], m0
mova [outq+5*16], m2
mova [outq+6*16], m4
mova [outq+7*16], m6
add outq, mmsize
add tmpq, mmsize
dec cntd
jg .loop_2
RET