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Code Issues Releases Activity

gcc chokes on the 7 registers needed for float_to_int16_interleave6 (even inside HAVE_7REGS), so write it in yasm

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Originally committed as revision 14749 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2008-08-14 04:40:46 +00:00
parent ee46753739
commit ebceaa1cd5
2 changed files with 20 additions and 43 deletions
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1
libavcodec/Makefile
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@ -393,6 +393,7 @@ OBJS-$(HAVE_YASM) += i386/fft_mmx.o \
i386/fft_sse.o \
i386/fft_3dn.o \
i386/fft_3dn2.o \
i386/dsputil_yasm.o \
OBJS-$(CONFIG_GPL) += i386/idct_mmx.o

62
libavcodec/i386/dsputil_mmx.c
View File

@ -2297,50 +2297,16 @@ static void float_to_int16_sse2(int16_t *dst, const float *src, long len){
);
}
#ifdef HAVE_7REGS
#define FLOAT_TO_INT16_INTERLEAVE6(cpu, cvtps2pi, pswapd) \
static void float_to_int16_interleave6_##cpu(int16_t *dst, const float **src, int len){\
const float *src0 = src[0];\
asm volatile(\
"1: \n"\
cvtps2pi" (%2), %%mm0 \n"\
cvtps2pi" (%2,%3), %%mm1 \n"\
cvtps2pi" (%2,%4), %%mm2 \n"\
cvtps2pi" (%2,%5), %%mm3 \n"\
cvtps2pi" (%2,%6), %%mm4 \n"\
cvtps2pi" (%2,%7), %%mm5 \n"\
"packssdw %%mm3, %%mm0 \n"\
"packssdw %%mm4, %%mm1 \n"\
"packssdw %%mm5, %%mm2 \n"\
pswapd" %%mm0, %%mm3 \n"\
"punpcklwd %%mm1, %%mm0 \n"\
"punpckhwd %%mm2, %%mm1 \n"\
"punpcklwd %%mm3, %%mm2 \n"\
pswapd" %%mm0, %%mm3 \n"\
"punpckldq %%mm2, %%mm0 \n"\
"punpckhdq %%mm1, %%mm2 \n"\
"punpckldq %%mm3, %%mm1 \n"\
"movq %%mm0, (%1) \n"\
"movq %%mm2, 16(%1) \n"\
"movq %%mm1, 8(%1) \n"\
"add $8, %2 \n"\
"add $24, %1 \n"\
"sub $2, %0 \n"\
"jg 1b \n"\
"emms \n"\
:"+g"(len), "+r"(dst), "+r"(src0)\
:"r"(4*(src[1]-src0)), "r"(4*(src[2]-src0)),\
"r"(4*(src[3]-src0)), "r"(4*(src[4]-src0)),\
"r"(4*(src[5]-src0))\
);\
}
FLOAT_TO_INT16_INTERLEAVE6(sse, "cvtps2pi", "pshufw $0x4e,")
FLOAT_TO_INT16_INTERLEAVE6(3dnow, "pf2id", "pswapd")
#ifdef HAVE_YASM
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);
#else
#define float_to_int16_interleave6_sse(a,b,c) float_to_int16_interleave_misc_sse(a,b,c,6)
#define float_to_int16_interleave6_3dnow(a,b,c) float_to_int16_interleave_misc_3dnow(a,b,c,6)
#define ff_float_to_int16_interleave6_sse(a,b,c) float_to_int16_interleave_misc_sse(a,b,c,6)
#define ff_float_to_int16_interleave6_3dnow(a,b,c) float_to_int16_interleave_misc_3dnow(a,b,c,6)
#define ff_float_to_int16_interleave6_3dn2(a,b,c) float_to_int16_interleave_misc_3dnow(a,b,c,6)
#endif
#define float_to_int16_interleave6_sse2 float_to_int16_interleave6_sse
#define ff_float_to_int16_interleave6_sse2 ff_float_to_int16_interleave6_sse
#define FLOAT_TO_INT16_INTERLEAVE(cpu, body) \
/* gcc pessimizes register allocation if this is in the same function as float_to_int16_interleave_sse2*/\
@ -2370,7 +2336,7 @@ static void float_to_int16_interleave_##cpu(int16_t *dst, const float **src, lon
:"+r"(len), "+r"(dst), "+r"(src0), "+r"(src1)\
);\
}else if(channels==6){\
float_to_int16_interleave6_##cpu(dst, src, len);\
ff_float_to_int16_interleave6_##cpu(dst, src, len);\
}else\
float_to_int16_interleave_misc_##cpu(dst, src, len, channels);\
}
@ -2423,6 +2389,13 @@ FLOAT_TO_INT16_INTERLEAVE(sse2,
"js 1b \n"
)
static void float_to_int16_interleave_3dn2(int16_t *dst, const float **src, long len, int channels){
if(channels==6)
ff_float_to_int16_interleave6_3dn2(dst, src, len);
else
float_to_int16_interleave_3dnow(dst, src, len, channels);
}
extern void ff_snow_horizontal_compose97i_sse2(IDWTELEM *b, int width);
extern void ff_snow_horizontal_compose97i_mmx(IDWTELEM *b, int width);
@ -2868,6 +2841,9 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
if(mm_flags & MM_3DNOWEXT){
c->vector_fmul_reverse = vector_fmul_reverse_3dnow2;
c->vector_fmul_window = vector_fmul_window_3dnow2;
if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
c->float_to_int16_interleave = float_to_int16_interleave_3dn2;
}
}
if(mm_flags & MM_SSE){
c->vorbis_inverse_coupling = vorbis_inverse_coupling_sse;