[FFmpeg-cvslog] fmtconvert: port float_to_int16_interleave() 2-channel x86 inline asm to yasm
Justin Ruggles
git at videolan.org
Sat Oct 22 01:26:49 CEST 2011
ffmpeg | branch: master | Justin Ruggles <justin.ruggles at gmail.com> | Mon Oct 10 00:43:08 2011 -0400| [aad3429d4e34b74e4eb0b37b17f32804e217cf02] | committer: Justin Ruggles
fmtconvert: port float_to_int16_interleave() 2-channel x86 inline asm to yasm
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=aad3429d4e34b74e4eb0b37b17f32804e217cf02
---
libavcodec/x86/fmtconvert.asm | 52 +++++++++++++++++++++++++++++
libavcodec/x86/fmtconvert_mmx.c | 69 +++++---------------------------------
2 files changed, 61 insertions(+), 60 deletions(-)
diff --git a/libavcodec/x86/fmtconvert.asm b/libavcodec/x86/fmtconvert.asm
index e3eb5d2..8549548 100644
--- a/libavcodec/x86/fmtconvert.asm
+++ b/libavcodec/x86/fmtconvert.asm
@@ -112,6 +112,58 @@ FLOAT_TO_INT16 3dnow, 0
%undef cvtps2pi
+;-------------------------------------------------------------------------------
+; void ff_float_to_int16_interleave2(int16_t *dst, const float **src, long len);
+;-------------------------------------------------------------------------------
+%macro FLOAT_TO_INT16_INTERLEAVE2 1
+cglobal float_to_int16_interleave2_%1, 3,4,2, dst, src0, src1, len
+ lea lenq, [4*r2q]
+ mov src1q, [src0q+gprsize]
+ mov src0q, [src0q]
+ add dstq, lenq
+ add src0q, lenq
+ add src1q, lenq
+ neg lenq
+.loop:
+%ifidn %1, sse2
+ cvtps2dq m0, [src0q+lenq]
+ cvtps2dq m1, [src1q+lenq]
+ packssdw m0, m1
+ movhlps m1, m0
+ punpcklwd m0, m1
+ mova [dstq+lenq], m0
+%else
+ cvtps2pi m0, [src0q+lenq ]
+ cvtps2pi m1, [src0q+lenq+8]
+ cvtps2pi m2, [src1q+lenq ]
+ cvtps2pi m3, [src1q+lenq+8]
+ packssdw m0, m1
+ packssdw m2, m3
+ mova m1, m0
+ punpcklwd m0, m2
+ punpckhwd m1, m2
+ mova [dstq+lenq ], m0
+ mova [dstq+lenq+8], m1
+%endif
+ add lenq, 16
+ js .loop
+%ifnidn %1, sse2
+ emms
+%endif
+ REP_RET
+%endmacro
+
+INIT_MMX
+%define cvtps2pi pf2id
+FLOAT_TO_INT16_INTERLEAVE2 3dnow
+%undef cvtps2pi
+%define movdqa movaps
+FLOAT_TO_INT16_INTERLEAVE2 sse
+%undef movdqa
+INIT_XMM
+FLOAT_TO_INT16_INTERLEAVE2 sse2
+
+
%macro PSWAPD_SSE 2
pshufw %1, %2, 0x4e
%endmacro
diff --git a/libavcodec/x86/fmtconvert_mmx.c b/libavcodec/x86/fmtconvert_mmx.c
index 86957b4..17079d3 100644
--- a/libavcodec/x86/fmtconvert_mmx.c
+++ b/libavcodec/x86/fmtconvert_mmx.c
@@ -35,13 +35,17 @@ void ff_float_to_int16_3dnow(int16_t *dst, const float *src, long len);
void ff_float_to_int16_sse (int16_t *dst, const float *src, long len);
void ff_float_to_int16_sse2 (int16_t *dst, const float *src, long len);
+void ff_float_to_int16_interleave2_3dnow(int16_t *dst, const float **src, long len);
+void ff_float_to_int16_interleave2_sse (int16_t *dst, const float **src, long len);
+void ff_float_to_int16_interleave2_sse2 (int16_t *dst, const float **src, long len);
+
void ff_float_to_int16_interleave6_sse(int16_t *dst, const float **src, int len);
void ff_float_to_int16_interleave6_3dnow(int16_t *dst, const float **src, int len);
void ff_float_to_int16_interleave6_3dn2(int16_t *dst, const float **src, int len);
#define ff_float_to_int16_interleave6_sse2 ff_float_to_int16_interleave6_sse
-#define FLOAT_TO_INT16_INTERLEAVE(cpu, body) \
+#define FLOAT_TO_INT16_INTERLEAVE(cpu) \
/* gcc pessimizes register allocation if this is in the same function as float_to_int16_interleave_sse2*/\
static av_noinline void float_to_int16_interleave_misc_##cpu(int16_t *dst, const float **src, long len, int channels){\
DECLARE_ALIGNED(16, int16_t, tmp)[len];\
@@ -57,71 +61,16 @@ static void float_to_int16_interleave_##cpu(int16_t *dst, const float **src, lon
if(channels==1)\
ff_float_to_int16_##cpu(dst, src[0], len);\
else if(channels==2){\
- x86_reg reglen = len; \
- const float *src0 = src[0];\
- const float *src1 = src[1];\
- __asm__ volatile(\
- "shl $2, %0 \n"\
- "add %0, %1 \n"\
- "add %0, %2 \n"\
- "add %0, %3 \n"\
- "neg %0 \n"\
- body\
- :"+r"(reglen), "+r"(dst), "+r"(src0), "+r"(src1)\
- );\
+ ff_float_to_int16_interleave2_##cpu(dst, src, len);\
}else if(channels==6){\
ff_float_to_int16_interleave6_##cpu(dst, src, len);\
}else\
float_to_int16_interleave_misc_##cpu(dst, src, len, channels);\
}
-FLOAT_TO_INT16_INTERLEAVE(3dnow,
- "1: \n"
- "pf2id (%2,%0), %%mm0 \n"
- "pf2id 8(%2,%0), %%mm1 \n"
- "pf2id (%3,%0), %%mm2 \n"
- "pf2id 8(%3,%0), %%mm3 \n"
- "packssdw %%mm1, %%mm0 \n"
- "packssdw %%mm3, %%mm2 \n"
- "movq %%mm0, %%mm1 \n"
- "punpcklwd %%mm2, %%mm0 \n"
- "punpckhwd %%mm2, %%mm1 \n"
- "movq %%mm0, (%1,%0)\n"
- "movq %%mm1, 8(%1,%0)\n"
- "add $16, %0 \n"
- "js 1b \n"
- "femms \n"
-)
-
-FLOAT_TO_INT16_INTERLEAVE(sse,
- "1: \n"
- "cvtps2pi (%2,%0), %%mm0 \n"
- "cvtps2pi 8(%2,%0), %%mm1 \n"
- "cvtps2pi (%3,%0), %%mm2 \n"
- "cvtps2pi 8(%3,%0), %%mm3 \n"
- "packssdw %%mm1, %%mm0 \n"
- "packssdw %%mm3, %%mm2 \n"
- "movq %%mm0, %%mm1 \n"
- "punpcklwd %%mm2, %%mm0 \n"
- "punpckhwd %%mm2, %%mm1 \n"
- "movq %%mm0, (%1,%0)\n"
- "movq %%mm1, 8(%1,%0)\n"
- "add $16, %0 \n"
- "js 1b \n"
- "emms \n"
-)
-
-FLOAT_TO_INT16_INTERLEAVE(sse2,
- "1: \n"
- "cvtps2dq (%2,%0), %%xmm0 \n"
- "cvtps2dq (%3,%0), %%xmm1 \n"
- "packssdw %%xmm1, %%xmm0 \n"
- "movhlps %%xmm0, %%xmm1 \n"
- "punpcklwd %%xmm1, %%xmm0 \n"
- "movdqa %%xmm0, (%1,%0) \n"
- "add $16, %0 \n"
- "js 1b \n"
-)
+FLOAT_TO_INT16_INTERLEAVE(3dnow)
+FLOAT_TO_INT16_INTERLEAVE(sse)
+FLOAT_TO_INT16_INTERLEAVE(sse2)
static void float_to_int16_interleave_3dn2(int16_t *dst, const float **src, long len, int channels){
if(channels==6)
More information about the ffmpeg-cvslog
mailing list