From ec029ea7a17d68cef612d38d97a77dc1237b1c5d Mon Sep 17 00:00:00 2001 From: gpoirier Date: Fri, 7 Jul 2006 14:04:07 +0000 Subject: Add dct64_sse, a replacement for dct64_MMX. About 60% faster on its author's Pentium III Currently only used on CPUs that _only_ support SSE (otherwise try 3DNow* before) Patch by The Mighty Zuxy Meng %zuxy * meng $ gmail * com% Original thread: Date: Jun 21, 2006 10:20 AM Subject: [MPlayer-dev-eng] [PATCH] SSE version of DCT64 for mp3lib git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18937 b3059339-0415-0410-9bf9-f77b7e298cf2 --- mp3lib/Makefile | 4 +- mp3lib/dct64_sse.c | 437 ++++++++++++++++++++++++++++++++++++++++++++++++++++ mp3lib/decode_MMX.c | 2 +- mp3lib/sr1.c | 7 + 4 files changed, 447 insertions(+), 3 deletions(-) create mode 100644 mp3lib/dct64_sse.c (limited to 'mp3lib') diff --git a/mp3lib/Makefile b/mp3lib/Makefile index f8c613e581..62458cccd1 100644 --- a/mp3lib/Makefile +++ b/mp3lib/Makefile @@ -15,8 +15,8 @@ SRCS += decode_MMX.c dct64_MMX.c tabinit_MMX.c OBJS += decode_MMX.o dct64_MMX.o tabinit_MMX.o SRCS += dct36_3dnow.c dct64_3dnow.c OBJS += dct36_3dnow.o dct64_3dnow.o -SRCS += dct36_k7.c dct64_k7.c -OBJS += dct36_k7.o dct64_k7.o +SRCS += dct36_k7.c dct64_k7.c dct64_sse.c +OBJS += dct36_k7.o dct64_k7.o dct64_sse.o endif ifeq ($(TARGET_ARCH_POWERPC),yes) ifeq ($(TARGET_ALTIVEC),yes) diff --git a/mp3lib/dct64_sse.c b/mp3lib/dct64_sse.c new file mode 100644 index 0000000000..5fb8839dbe --- /dev/null +++ b/mp3lib/dct64_sse.c @@ -0,0 +1,437 @@ +/* + * Discrete Cosine Tansform (DCT) for SSE + * Copyright (c) 2006 Zuxy MENG + * based upon code from mp3lib/dct64.c, mp3lib/dct64_altivec.c + * and mp3lib/dct64_MMX.c + */ + +/* NOTE: The following code is suboptimal! It can be improved (at least) by + + 1. Replace all movups by movaps. (Can Parameter c be always aligned on + a 16-byte boundary?) + + 2. Rewritten using intrinsics. (GCC generally optimizes intrinsics + better. However, when __m128 locals are involved, GCC may + produce bad code that uses movaps to access a stack not aligned + on a 16-byte boundary, which leads to run-time crashes.) + +*/ + +typedef float real; + +extern float __attribute__((aligned(16))) costab_mmx[]; + +static const int ppnn[4] __attribute__((aligned(16))) = +{ 0, 0, 1 << 31, 1 << 31 }; + +static const int pnpn[4] __attribute__((aligned(16))) = +{ 0, 1 << 31, 0, 1 << 31 }; + +static const int nnnn[4] __attribute__((aligned(16))) = +{ 1 << 31, 1 << 31, 1 << 31, 1 << 31 }; + +void dct64_sse(real *a,real *b,real *c) +{ + static real __attribute__ ((aligned(16))) b1[0x20]; + static real __attribute__ ((aligned(16))) b2[0x20]; + static real const one = 1.f; + + short *out0 = (short*)a; + short *out1 = (short*)b; + + { + real *costab = costab_mmx; + int i; + + for (i = 0; i < 0x20 / 2; i += 4) + { + asm( + "movaps %2, %%xmm3\n\t" + "shufps $27, %%xmm3, %%xmm3\n\t" + "movups %3, %%xmm1\n\t" + "movaps %%xmm1, %%xmm4\n\t" + "movups %4, %%xmm2\n\t" + "shufps $27, %%xmm4, %%xmm4\n\t" + "movaps %%xmm2, %%xmm0\n\t" + "shufps $27, %%xmm0, %%xmm0\n\t" + "addps %%xmm0, %%xmm1\n\t" + "movaps %%xmm1, %0\n\t" + "subps %%xmm2, %%xmm4\n\t" + "mulps %%xmm3, %%xmm4\n\t" + "movaps %%xmm4, %1\n\t" + :"=m"(*(b1 + i)), "=m"(*(b1 + 0x1c - i)) + :"m"(*(costab + i)), "m"(*(c + i)), "m"(*(c + 0x1c - i)) + ); + } + } + + { + int i; + + for (i = 0; i < 0x20; i += 0x10) + { + asm( + "movaps %4, %%xmm1\n\t" + "movaps %5, %%xmm3\n\t" + "movaps %6, %%xmm4\n\t" + "movaps %7, %%xmm6\n\t" + "movaps %%xmm1, %%xmm7\n\t" + "shufps $27, %%xmm7, %%xmm7\n\t" + "movaps %%xmm3, %%xmm5\n\t" + "shufps $27, %%xmm5, %%xmm5\n\t" + "movaps %%xmm4, %%xmm2\n\t" + "shufps $27, %%xmm2, %%xmm2\n\t" + "movaps %%xmm6, %%xmm0\n\t" + "shufps $27, %%xmm0, %%xmm0\n\t" + "addps %%xmm0, %%xmm1\n\t" + "movaps %%xmm1, %0\n\t" + "addps %%xmm2, %%xmm3\n\t" + "movaps %%xmm3, %1\n\t" + "subps %%xmm4, %%xmm5\n\t" + "movaps %%xmm5, %2\n\t" + "subps %%xmm6, %%xmm7\n\t" + "movaps %%xmm7, %3\n\t" + :"=m"(*(b2 + i)), "=m"(*(b2 + i + 4)), "=m"(*(b2 + i + 8)), "=m"(*(b2 + i + 12)) + :"m"(*(b1 + i)), "m"(*(b1 + i + 4)), "m"(*(b1 + i + 8)), "m"(*(b1 + i + 12)) + ); + } + } + + { + real *costab = costab_mmx + 16; + asm( + "movaps %4, %%xmm0\n\t" + "movaps %5, %%xmm1\n\t" + "movaps %8, %%xmm4\n\t" + "xorps %%xmm6, %%xmm6\n\t" + "shufps $27, %%xmm4, %%xmm4\n\t" + "mulps %%xmm4, %%xmm1\n\t" + "movaps %9, %%xmm2\n\t" + "xorps %%xmm7, %%xmm7\n\t" + "shufps $27, %%xmm2, %%xmm2\n\t" + "mulps %%xmm2, %%xmm0\n\t" + "movaps %%xmm0, %0\n\t" + "movaps %%xmm1, %1\n\t" + "movaps %6, %%xmm3\n\t" + "mulps %%xmm2, %%xmm3\n\t" + "subps %%xmm3, %%xmm6\n\t" + "movaps %%xmm6, %2\n\t" + "movaps %7, %%xmm5\n\t" + "mulps %%xmm4, %%xmm5\n\t" + "subps %%xmm5, %%xmm7\n\t" + "movaps %%xmm7, %3\n\t" + :"=m"(*(b2 + 8)), "=m"(*(b2 + 0xc)), "=m"(*(b2 + 0x18)), "=m"(*(b2 + 0x1c)) + :"m"(*(b2 + 8)), "m"(*(b2 + 0xc)), "m"(*(b2 + 0x18)), "m"(*(b2 + 0x1c)), "m"(*costab), "m"(*(costab + 4)) + ); + } + + { + real *costab = costab_mmx + 24; + int i; + + asm( + "movaps %0, %%xmm0\n\t" + "shufps $27, %%xmm0, %%xmm0\n\t" + "movaps %1, %%xmm5\n\t" + "movaps %%xmm5, %%xmm6\n\t" + : + :"m"(*costab), "m"(*nnnn) + ); + + for (i = 0; i < 0x20; i += 8) + { + asm( + "movaps %2, %%xmm2\n\t" + "movaps %3, %%xmm3\n\t" + "movaps %%xmm2, %%xmm4\n\t" + "xorps %%xmm5, %%xmm6\n\t" + "shufps $27, %%xmm4, %%xmm4\n\t" + "movaps %%xmm3, %%xmm1\n\t" + "shufps $27, %%xmm1, %%xmm1\n\t" + "addps %%xmm1, %%xmm2\n\t" + "movaps %%xmm2, %0\n\t" + "subps %%xmm3, %%xmm4\n\t" + "xorps %%xmm6, %%xmm4\n\t" + "mulps %%xmm0, %%xmm4\n\t" + "movaps %%xmm4, %1\n\t" + :"=m"(*(b1 + i)), "=m"(*(b1 + i + 4)) + :"m"(*(b2 + i)), "m"(*(b2 + i + 4)) + ); + } + } + + { + int i; + + asm( + "movss %0, %%xmm1\n\t" + "movss %1, %%xmm0\n\t" + "movaps %%xmm1, %%xmm3\n\t" + "unpcklps %%xmm0, %%xmm3\n\t" + "movss %2, %%xmm2\n\t" + "movaps %%xmm1, %%xmm0\n\t" + "unpcklps %%xmm2, %%xmm0\n\t" + "unpcklps %%xmm3, %%xmm0\n\t" + "movaps %3, %%xmm2\n\t" + : + :"m"(one), "m"(costab_mmx[28]), "m"(costab_mmx[29]), "m"(*ppnn) + ); + + for (i = 0; i < 0x20; i += 8) + { + asm( + "movaps %2, %%xmm3\n\t" + "movaps %%xmm3, %%xmm4\n\t" + "shufps $20, %%xmm4, %%xmm4\n\t" + "shufps $235, %%xmm3, %%xmm3\n\t" + "xorps %%xmm2, %%xmm3\n\t" + "addps %%xmm3, %%xmm4\n\t" + "mulps %%xmm0, %%xmm4\n\t" + "movaps %%xmm4, %0\n\t" + "movaps %3, %%xmm6\n\t" + "movaps %%xmm6, %%xmm5\n\t" + "shufps $27, %%xmm5, %%xmm5\n\t" + "xorps %%xmm2, %%xmm5\n\t" + "addps %%xmm5, %%xmm6\n\t" + "mulps %%xmm0, %%xmm6\n\t" + "movaps %%xmm6, %1\n\t" + :"=m"(*(b2 + i)), "=m"(*(b2 + i + 4)) + :"m"(*(b1 + i)), "m"(*(b1 + i + 4)) + ); + } + } + + { + int i; + asm( + "movss %0, %%xmm0\n\t" + "movaps %%xmm1, %%xmm2\n\t" + "movaps %%xmm0, %%xmm7\n\t" + "unpcklps %%xmm1, %%xmm2\n\t" + "unpcklps %%xmm0, %%xmm7\n\t" + "movaps %1, %%xmm0\n\t" + "unpcklps %%xmm7, %%xmm2\n\t" + : + :"m"(costab_mmx[30]), "m"(*pnpn) + ); + + for (i = 0x8; i < 0x20; i += 8) + { + asm volatile ( + "movaps %2, %%xmm1\n\t" + "movaps %%xmm1, %%xmm3\n\t" + "shufps $224, %%xmm3, %%xmm3\n\t" + "shufps $181, %%xmm1, %%xmm1\n\t" + "xorps %%xmm0, %%xmm1\n\t" + "addps %%xmm1, %%xmm3\n\t" + "mulps %%xmm2, %%xmm3\n\t" + "movaps %%xmm3, %0\n\t" + "movaps %3, %%xmm4\n\t" + "movaps %%xmm4, %%xmm5\n\t" + "shufps $224, %%xmm5, %%xmm5\n\t" + "shufps $181, %%xmm4, %%xmm4\n\t" + "xorps %%xmm0, %%xmm4\n\t" + "addps %%xmm4, %%xmm5\n\t" + "mulps %%xmm2, %%xmm5\n\t" + "movaps %%xmm5, %1\n\t" + :"=m"(*(b1 + i)), "=m"(*(b1 + i + 4)) + :"m"(*(b2 + i)), "m"(*(b2 + i + 4)) + :"memory" + ); + } + for (i = 0x8; i < 0x20; i += 8) + { + b1[i + 2] += b1[i + 3]; + b1[i + 6] += b1[i + 7]; + b1[i + 4] += b1[i + 6]; + b1[i + 6] += b1[i + 5]; + b1[i + 5] += b1[i + 7]; + } + } + +#if 0 + /* Reference C code */ + + /* + Should run faster than x87 asm, given that the compiler is sane. + However, the C code dosen't round with saturation (0x7fff for too + large positive float, 0x8000 for too small negative float). You + can hear the difference if you listen carefully. + */ + + out0[256] = (short)(b2[0] + b2[1]); + out0[0] = (short)((b2[0] - b2[1]) * costab_mmx[30]); + out1[128] = (short)((b2[3] - b2[2]) * costab_mmx[30]); + out0[128] = (short)((b2[3] - b2[2]) * costab_mmx[30] + b2[3] + b2[2]); + out1[192] = (short)((b2[7] - b2[6]) * costab_mmx[30]); + out0[192] = (short)((b2[7] - b2[6]) * costab_mmx[30] + b2[6] + b2[7] + b2[4] + b2[5]); + out0[64] = (short)((b2[7] - b2[6]) * costab_mmx[30] + b2[6] + b2[7] + (b2[4] - b2[5]) * costab_mmx[30]); + out1[64] = (short)((b2[7] - b2[6]) * costab_mmx[30] + (b2[4] - b2[5]) * costab_mmx[30]); + + out0[224] = (short)(b1[8] + b1[12]); + out0[160] = (short)(b1[12] + b1[10]); + out0[96] = (short)(b1[10] + b1[14]); + out0[32] = (short)(b1[14] + b1[9]); + out1[32] = (short)(b1[9] + b1[13]); + out1[96] = (short)(b1[13] + b1[11]); + out1[222] = (short)b1[15]; + out1[160] = (short)(b1[15] + b1[11]); + out0[240] = (short)(b1[24] + b1[28] + b1[16]); + out0[208] = (short)(b1[24] + b1[28] + b1[20]); + out0[176] = (short)(b1[28] + b1[26] + b1[20]); + out0[144] = (short)(b1[28] + b1[26] + b1[18]); + out0[112] = (short)(b1[26] + b1[30] + b1[18]); + out0[80] = (short)(b1[26] + b1[30] + b1[22]); + out0[48] = (short)(b1[30] + b1[25] + b1[22]); + out0[16] = (short)(b1[30] + b1[25] + b1[17]); + out1[16] = (short)(b1[25] + b1[29] + b1[17]); + out1[48] = (short)(b1[25] + b1[29] + b1[21]); + out1[80] = (short)(b1[29] + b1[27] + b1[21]); + out1[112] = (short)(b1[29] + b1[27] + b1[19]); + out1[144] = (short)(b1[27] + b1[31] + b1[19]); + out1[176] = (short)(b1[27] + b1[31] + b1[23]); + out1[240] = (short)(b1[31]); + out1[208] = (short)(b1[31] + b1[23]); + +#else + /* + To do saturation efficiently in x86 we can use fist(t)(p), + pf2iw, or packssdw. We use fist(p) here. + */ + asm( + "flds %0\n\t" + "flds (%2)\n\t" + "fadds 4(%2)\n\t" + "fistp 512(%3)\n\t" + + "flds (%2)\n\t" + "fsubs 4(%2)\n\t" + "fmul %%st(1)\n\t" + "fistp (%3)\n\t" + + "flds 12(%2)\n\t" + "fsubs 8(%2)\n\t" + "fmul %%st(1)\n\t" + "fist 256(%4)\n\t" + "fadds 12(%2)\n\t" + "fadds 8(%2)\n\t" + "fistp 256(%3)\n\t" + + "flds 16(%2)\n\t" + "fsubs 20(%2)\n\t" + "fmul %%st(1)\n\t" + + "flds 28(%2)\n\t" + "fsubs 24(%2)\n\t" + "fmul %%st(2)\n\t" + "fist 384(%4)\n\t" + "fld %%st(0)\n\t" + "fadds 24(%2)\n\t" + "fadds 28(%2)\n\t" + "fld %%st(0)\n\t" + "fadds 16(%2)\n\t" + "fadds 20(%2)\n\t" + "fistp 384(%3)\n\t" + "fadd %%st(2)\n\t" + "fistp 128(%3)\n\t" + "faddp %%st(1)\n\t" + "fistp 128(%4)\n\t" + + "flds 32(%1)\n\t" + "fadds 48(%1)\n\t" + "fistp 448(%3)\n\t" + + "flds 48(%1)\n\t" + "fadds 40(%1)\n\t" + "fistp 320(%3)\n\t" + + "flds 40(%1)\n\t" + "fadds 56(%1)\n\t" + "fistp 192(%3)\n\t" + + "flds 56(%1)\n\t" + "fadds 36(%1)\n\t" + "fistp 64(%3)\n\t" + + "flds 36(%1)\n\t" + "fadds 52(%1)\n\t" + "fistp 64(%4)\n\t" + + "flds 52(%1)\n\t" + "fadds 44(%1)\n\t" + "fistp 192(%4)\n\t" + + "flds 60(%1)\n\t" + "fist 448(%4)\n\t" + "fadds 44(%1)\n\t" + "fistp 320(%4)\n\t" + + "flds 96(%1)\n\t" + "fadds 112(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 64(%1)\n\t" + "fistp 480(%3)\n\t" + "fadds 80(%1)\n\t" + "fistp 416(%3)\n\t" + + "flds 112(%1)\n\t" + "fadds 104(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 80(%1)\n\t" + "fistp 352(%3)\n\t" + "fadds 72(%1)\n\t" + "fistp 288(%3)\n\t" + + "flds 104(%1)\n\t" + "fadds 120(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 72(%1)\n\t" + "fistp 224(%3)\n\t" + "fadds 88(%1)\n\t" + "fistp 160(%3)\n\t" + + "flds 120(%1)\n\t" + "fadds 100(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 88(%1)\n\t" + "fistp 96(%3)\n\t" + "fadds 68(%1)\n\t" + "fistp 32(%3)\n\t" + + "flds 100(%1)\n\t" + "fadds 116(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 68(%1)\n\t" + "fistp 32(%4)\n\t" + "fadds 84(%1)\n\t" + "fistp 96(%4)\n\t" + + "flds 116(%1)\n\t" + "fadds 108(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 84(%1)\n\t" + "fistp 160(%4)\n\t" + "fadds 76(%1)\n\t" + "fistp 224(%4)\n\t" + + "flds 108(%1)\n\t" + "fadds 124(%1)\n\t" + "fld %%st(0)\n\t" + "fadds 76(%1)\n\t" + "fistp 288(%4)\n\t" + "fadds 92(%1)\n\t" + "fistp 352(%4)\n\t" + + "flds 124(%1)\n\t" + "fist 480(%4)\n\t" + "fadds 92(%1)\n\t" + "fistp 416(%4)\n\t" + "ffreep %%st(0)\n\t" + : + :"m"(costab_mmx[30]), "r"(b1), "r"(b2), "r"(a), "r"(b) + :"memory" + ); +#endif + out1[0] = out0[0]; +} + diff --git a/mp3lib/decode_MMX.c b/mp3lib/decode_MMX.c index ee53885d25..7fd9e477f5 100644 --- a/mp3lib/decode_MMX.c +++ b/mp3lib/decode_MMX.c @@ -13,7 +13,7 @@ static unsigned long long attribute_used __attribute__((aligned(8))) null_one = 0x0000ffff0000ffffULL; static unsigned long long attribute_used __attribute__((aligned(8))) one_null = 0xffff0000ffff0000ULL; -unsigned long __attribute__((aligned(8))) costab_mmx[] = +unsigned long __attribute__((aligned(16))) costab_mmx[] = { 1056974725, 1057056395, diff --git a/mp3lib/sr1.c b/mp3lib/sr1.c index 29f764cf1e..69471f3765 100644 --- a/mp3lib/sr1.c +++ b/mp3lib/sr1.c @@ -392,6 +392,7 @@ static int _has_mmx = 0; // used by layer2.c, layer3.c to pre-scale coeffs extern void dct64_MMX(real *, real *, real *); extern void dct64_MMX_3dnow(real *, real *, real *); extern void dct64_MMX_3dnowex(real *, real *, real *); +extern void dct64_sse(real *, real *, real *); void (*dct64_MMX_func)(real *, real *, real *); #include "cpudetect.h" @@ -434,6 +435,12 @@ void MP3_Init(){ mp_msg(MSGT_DECAUDIO,MSGL_V,"mp3lib: using 3DNow! optimized decore!\n"); } else + if (gCpuCaps.hasSSE) + { + dct64_MMX_func = dct64_sse; + mp_msg(MSGT_DECAUDIO,MSGL_V,"mp3lib: using SSE optimized decore!\n"); + } + else if (gCpuCaps.hasMMX) { dct64_MMX_func = dct64_MMX; -- cgit v1.2.3