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ff_h264_idct8_add_sse2.

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compared to mmx, 217->126 cycles on core2, 262->220 on k8.

Originally committed as revision 11826 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Loren Merritt 17 years ago
parent 51f0ac65df
commit ed5d7a531c
5 changed files with 98 additions and 9 deletions
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  1. 2
      libavcodec/h264.h
  2. 6
      libavcodec/i386/dsputil_h264_template_mmx.c
  3. 4
      libavcodec/i386/dsputil_mmx.c
  4. 2
      libavcodec/i386/dsputil_mmx.h
  5. 93
      libavcodec/i386/h264dsp_mmx.c

2
libavcodec/h264.h
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@ -348,7 +348,7 @@ typedef struct H264Context{
GetBitContext *intra_gb_ptr;
GetBitContext *inter_gb_ptr;
DECLARE_ALIGNED_8(DCTELEM, mb[16*24]);
DECLARE_ALIGNED_16(DCTELEM, mb[16*24]);
DCTELEM mb_padding[256]; ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not to large or ensure that there is some unused stuff after mb
/**

6
libavcodec/i386/dsputil_h264_template_mmx.c
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@ -98,7 +98,7 @@ static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*
}
/* general case, bilinear */
rnd_reg = rnd ? &ff_pw_32 : &ff_pw_28;
rnd_reg = rnd ? ff_pw_32 : &ff_pw_28;
asm volatile("movd %2, %%mm4\n\t"
"movd %3, %%mm6\n\t"
"punpcklwd %%mm4, %%mm4\n\t"
@ -250,7 +250,7 @@ static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 4*/, uint8_t *src/*align 1*
"sub $2, %2 \n\t"
"jnz 1b \n\t"
: "+r"(dst), "+r"(src), "+r"(h)
: "r"((long)stride), "m"(ff_pw_32), "m"(x), "m"(y)
: "r"((long)stride), "m"(*ff_pw_32), "m"(x), "m"(y)
);
}
@ -301,7 +301,7 @@ static void H264_CHROMA_MC2_TMPL(uint8_t *dst/*align 2*/, uint8_t *src/*align 1*
"sub $1, %2\n\t"
"jnz 1b\n\t"
: "+r" (dst), "+r"(src), "+r"(h)
: "m" (ff_pw_32), "r"((long)stride)
: "m" (*ff_pw_32), "r"((long)stride)
: "%esi");
}

4
libavcodec/i386/dsputil_mmx.c
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@ -54,7 +54,7 @@ DECLARE_ALIGNED_8 (const uint64_t, ff_pw_8 ) = 0x0008000800080008ULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_15 ) = 0x000F000F000F000FULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_16 ) = 0x0010001000100010ULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_20 ) = 0x0014001400140014ULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_32 ) = 0x0020002000200020ULL;
DECLARE_ALIGNED_16(const uint64_t, ff_pw_32[2]) = {0x0020002000200020ULL, 0x0020002000200020ULL};
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_42 ) = 0x002A002A002A002AULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_64 ) = 0x0040004000400040ULL;
DECLARE_ALIGNED_8 (const uint64_t, ff_pw_96 ) = 0x0060006000600060ULL;
@ -3328,6 +3328,8 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
c->h264_idct_add= ff_h264_idct_add_mmx;
c->h264_idct8_dc_add=
c->h264_idct8_add= ff_h264_idct8_add_mmx;
if (mm_flags & MM_SSE2)
c->h264_idct8_add= ff_h264_idct8_add_sse2;
if (mm_flags & MM_MMXEXT) {
c->prefetch = prefetch_mmx2;

2
libavcodec/i386/dsputil_mmx.h
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@ -36,7 +36,7 @@ extern const uint64_t ff_pw_8;
extern const uint64_t ff_pw_15;
extern const uint64_t ff_pw_16;
extern const uint64_t ff_pw_20;
extern const uint64_t ff_pw_32;
extern const uint64_t ff_pw_32[2];
extern const uint64_t ff_pw_42;
extern const uint64_t ff_pw_64;
extern const uint64_t ff_pw_96;

93
libavcodec/i386/h264dsp_mmx.c
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@ -75,7 +75,7 @@ static void ff_h264_idct_add_mmx(uint8_t *dst, int16_t *block, int stride)
IDCT4_1D( %%mm4, %%mm2, %%mm3, %%mm0, %%mm1 )
"pxor %%mm7, %%mm7 \n\t"
:: "m"(ff_pw_32));
:: "m"(*ff_pw_32));
asm volatile(
STORE_DIFF_4P( %%mm0, %%mm1, %%mm7)
@ -211,6 +211,93 @@ static void ff_h264_idct8_add_mmx(uint8_t *dst, int16_t *block, int stride)
add_pixels_clamped_mmx(b2, dst, stride);
}
#define STORE_DIFF_8P( p, d, t, z )\
"movq "#d", "#t" \n"\
"psraw $6, "#p" \n"\
"punpcklbw "#z", "#t" \n"\
"paddsw "#t", "#p" \n"\
"packuswb "#p", "#p" \n"\
"movq "#p", "#d" \n"
#define H264_IDCT8_1D_SSE2(a,b,c,d,e,f,g,h)\
"movdqa "#c", "#a" \n"\
"movdqa "#g", "#e" \n"\
"psraw $1, "#c" \n"\
"psraw $1, "#g" \n"\
"psubw "#e", "#c" \n"\
"paddw "#a", "#g" \n"\
"movdqa "#b", "#e" \n"\
"psraw $1, "#e" \n"\
"paddw "#b", "#e" \n"\
"paddw "#d", "#e" \n"\
"paddw "#f", "#e" \n"\
"movdqa "#f", "#a" \n"\
"psraw $1, "#a" \n"\
"paddw "#f", "#a" \n"\
"paddw "#h", "#a" \n"\
"psubw "#b", "#a" \n"\
"psubw "#d", "#b" \n"\
"psubw "#d", "#f" \n"\
"paddw "#h", "#b" \n"\
"psubw "#h", "#f" \n"\
"psraw $1, "#d" \n"\
"psraw $1, "#h" \n"\
"psubw "#d", "#b" \n"\
"psubw "#h", "#f" \n"\
"movdqa "#e", "#d" \n"\
"movdqa "#a", "#h" \n"\
"psraw $2, "#d" \n"\
"psraw $2, "#h" \n"\
"paddw "#f", "#d" \n"\
"paddw "#b", "#h" \n"\
"psraw $2, "#f" \n"\
"psraw $2, "#b" \n"\
"psubw "#f", "#e" \n"\
"psubw "#a", "#b" \n"\
"movdqa 0x00(%1), "#a" \n"\
"movdqa 0x40(%1), "#f" \n"\
SUMSUB_BA(f, a)\
SUMSUB_BA(g, f)\
SUMSUB_BA(c, a)\
SUMSUB_BA(e, g)\
SUMSUB_BA(b, c)\
SUMSUB_BA(h, a)\
SUMSUB_BA(d, f)
static void ff_h264_idct8_add_sse2(uint8_t *dst, int16_t *block, int stride)
{
asm volatile(
"movdqa 0x10(%1), %%xmm1 \n"
"movdqa 0x20(%1), %%xmm2 \n"
"movdqa 0x30(%1), %%xmm3 \n"
"movdqa 0x50(%1), %%xmm5 \n"
"movdqa 0x60(%1), %%xmm6 \n"
"movdqa 0x70(%1), %%xmm7 \n"
H264_IDCT8_1D_SSE2(%%xmm0, %%xmm1, %%xmm2, %%xmm3, %%xmm4, %%xmm5, %%xmm6, %%xmm7)
TRANSPOSE8(%%xmm4, %%xmm1, %%xmm7, %%xmm3, %%xmm5, %%xmm0, %%xmm2, %%xmm6, (%1))
"paddw %4, %%xmm4 \n"
"movdqa %%xmm4, 0x00(%1) \n"
"movdqa %%xmm2, 0x40(%1) \n"
H264_IDCT8_1D_SSE2(%%xmm4, %%xmm0, %%xmm6, %%xmm3, %%xmm2, %%xmm5, %%xmm7, %%xmm1)
"movdqa %%xmm6, 0x60(%1) \n"
"movdqa %%xmm7, 0x70(%1) \n"
"pxor %%xmm7, %%xmm7 \n"
STORE_DIFF_8P(%%xmm2, (%0), %%xmm6, %%xmm7)
STORE_DIFF_8P(%%xmm0, (%0,%2), %%xmm6, %%xmm7)
STORE_DIFF_8P(%%xmm1, (%0,%2,2), %%xmm6, %%xmm7)
STORE_DIFF_8P(%%xmm3, (%0,%3), %%xmm6, %%xmm7)
"lea (%0,%2,4), %0 \n"
STORE_DIFF_8P(%%xmm5, (%0), %%xmm6, %%xmm7)
STORE_DIFF_8P(%%xmm4, (%0,%2), %%xmm6, %%xmm7)
"movdqa 0x60(%1), %%xmm0 \n"
"movdqa 0x70(%1), %%xmm1 \n"
STORE_DIFF_8P(%%xmm0, (%0,%2,2), %%xmm6, %%xmm7)
STORE_DIFF_8P(%%xmm1, (%0,%3), %%xmm6, %%xmm7)
:"+r"(dst)
:"r"(block), "r"((long)stride), "r"(3L*stride), "m"(*ff_pw_32)
);
}
static void ff_h264_idct_dc_add_mmx2(uint8_t *dst, int16_t *block, int stride)
{
int dc = (block[0] + 32) >> 6;
@ -839,7 +926,7 @@ static av_noinline void OPNAME ## h264_qpel4_hv_lowpass_ ## MMX(uint8_t *dst, in
"decl %2 \n\t"\
" jnz 1b \n\t"\
: "+a"(tmp), "+c"(dst), "+m"(h)\
: "S"((long)dstStride), "m"(ff_pw_32)\
: "S"((long)dstStride), "m"(*ff_pw_32)\
: "memory"\
);\
}\
@ -1113,7 +1200,7 @@ static av_noinline void OPNAME ## h264_qpel8or16_hv_lowpass_ ## MMX(uint8_t *dst
"decl %2 \n\t"\
" jnz 1b \n\t"\
: "+a"(tmp), "+c"(dst), "+m"(h)\
: "S"((long)dstStride), "m"(ff_pw_32)\
: "S"((long)dstStride), "m"(*ff_pw_32)\
: "memory"\
);\
tmp += 8 - size*24;\

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