mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 07:42:17 +00:00
a147ec530e
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23360 b3059339-0415-0410-9bf9-f77b7e298cf2
237 lines
6.3 KiB
C
237 lines
6.3 KiB
C
/*
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* this code comes under GPL
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* This code was taken from http://www.mpg123.org
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* See ChangeLog of mpg123-0.59s-pre.1 for detail
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* Applied to mplayer by Nick Kurshev <nickols_k@mail.ru>
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*
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* Local ChangeLog:
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* - Partial loops unrolling and removing MOVW insn from loops
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*/
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#include "config.h"
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#include "mangle.h"
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#define real float /* ugly - but only way */
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extern short mp3lib_decwins[];
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extern void (*dct64_MMX_func)(short*, short*, real*);
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static unsigned long long attribute_used __attribute__((aligned(8))) null_one = 0x0000ffff0000ffffULL;
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static unsigned long long attribute_used __attribute__((aligned(8))) one_null = 0xffff0000ffff0000ULL;
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unsigned long __attribute__((aligned(16))) costab_mmx[] =
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{
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1056974725,
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1057056395,
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1057223771,
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1057485416,
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1057855544,
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1058356026,
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1059019886,
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1059897405,
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1061067246,
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1062657950,
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1064892987,
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1066774581,
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1069414683,
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1073984175,
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1079645762,
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1092815430,
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1057005197,
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1057342072,
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1058087743,
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1059427869,
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1061799040,
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1065862217,
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1071413542,
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1084439708,
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1057128951,
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1058664893,
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1063675095,
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1076102863,
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1057655764,
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1067924853,
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1060439283,
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};
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int synth_1to1_MMX(real *bandPtr, int channel, short *samples)
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{
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static short buffs[2][2][0x110] __attribute__((aligned(8)));
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static int bo = 1;
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short *b0, (*buf)[0x110], *a, *b;
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short* window;
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int bo1, i = 8;
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if (channel == 0) {
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bo = (bo - 1) & 0xf;
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buf = buffs[1];
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} else {
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samples++;
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buf = buffs[0];
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}
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if (bo & 1) {
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b0 = buf[1];
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bo1 = bo + 1;
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a = buf[0] + bo;
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b = buf[1] + ((bo + 1) & 0xf);
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} else {
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b0 = buf[0];
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bo1 = bo;
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b = buf[0] + bo;
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a = buf[1] + ((bo + 1) & 0xf);
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}
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dct64_MMX_func(a, b, bandPtr);
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window = mp3lib_decwins + 16 - bo1;
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//printf("DEBUG: channel %d, bo %d, off %d\n", channel, bo, 16 - bo1);
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__asm __volatile(
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ASMALIGN(4)
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".L03:\n\t"
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"movq (%%edx),%%mm0\n\t"
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"movq 64(%%edx),%%mm4\n\t"
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"pmaddwd (%%esi),%%mm0\n\t"
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"pmaddwd 32(%%esi),%%mm4\n\t"
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"movq 8(%%edx),%%mm1\n\t"
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"movq 72(%%edx),%%mm5\n\t"
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"pmaddwd 8(%%esi),%%mm1\n\t"
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"pmaddwd 40(%%esi),%%mm5\n\t"
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"movq 16(%%edx),%%mm2\n\t"
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"movq 80(%%edx),%%mm6\n\t"
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"pmaddwd 16(%%esi),%%mm2\n\t"
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"pmaddwd 48(%%esi),%%mm6\n\t"
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"movq 24(%%edx),%%mm3\n\t"
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"movq 88(%%edx),%%mm7\n\t"
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"pmaddwd 24(%%esi),%%mm3\n\t"
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"pmaddwd 56(%%esi),%%mm7\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"paddd %%mm5,%%mm4\n\t"
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"paddd %%mm2,%%mm0\n\t"
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"paddd %%mm6,%%mm4\n\t"
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"paddd %%mm3,%%mm0\n\t"
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"paddd %%mm7,%%mm4\n\t"
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"movq %%mm0,%%mm1\n\t"
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"movq %%mm4,%%mm5\n\t"
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"psrlq $32,%%mm1\n\t"
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"psrlq $32,%%mm5\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"paddd %%mm5,%%mm4\n\t"
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"psrad $13,%%mm0\n\t"
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"psrad $13,%%mm4\n\t"
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"packssdw %%mm0,%%mm0\n\t"
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"packssdw %%mm4,%%mm4\n\t"
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"movq (%%edi), %%mm1\n\t"
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"punpckldq %%mm4, %%mm0\n\t"
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"pand "MANGLE(one_null)", %%mm1\n\t"
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"pand "MANGLE(null_one)", %%mm0\n\t"
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"por %%mm0, %%mm1\n\t"
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"movq %%mm1,(%%edi)\n\t"
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"leal 64(%%esi),%%esi\n\t"
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"leal 128(%%edx),%%edx\n\t"
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"leal 8(%%edi),%%edi\n\t"
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"decl %%ecx\n\t"
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"jnz .L03\n\t"
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"movq (%%edx),%%mm0\n\t"
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"pmaddwd (%%esi),%%mm0\n\t"
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"movq 8(%%edx),%%mm1\n\t"
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"pmaddwd 8(%%esi),%%mm1\n\t"
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"movq 16(%%edx),%%mm2\n\t"
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"pmaddwd 16(%%esi),%%mm2\n\t"
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"movq 24(%%edx),%%mm3\n\t"
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"pmaddwd 24(%%esi),%%mm3\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"paddd %%mm2,%%mm0\n\t"
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"paddd %%mm3,%%mm0\n\t"
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"movq %%mm0,%%mm1\n\t"
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"psrlq $32,%%mm1\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"psrad $13,%%mm0\n\t"
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"packssdw %%mm0,%%mm0\n\t"
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"movd %%mm0,%%eax\n\t"
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"movw %%ax, (%%edi)\n\t"
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"leal 32(%%esi),%%esi\n\t"
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"leal 64(%%edx),%%edx\n\t"
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"leal 4(%%edi),%%edi\n\t"
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"subl $64,%%esi\n\t"
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"movl $7,%%ecx\n\t"
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ASMALIGN(4)
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".L04:\n\t"
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"movq (%%edx),%%mm0\n\t"
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"movq 64(%%edx),%%mm4\n\t"
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"pmaddwd (%%esi),%%mm0\n\t"
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"pmaddwd -32(%%esi),%%mm4\n\t"
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"movq 8(%%edx),%%mm1\n\t"
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"movq 72(%%edx),%%mm5\n\t"
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"pmaddwd 8(%%esi),%%mm1\n\t"
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"pmaddwd -24(%%esi),%%mm5\n\t"
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"movq 16(%%edx),%%mm2\n\t"
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"movq 80(%%edx),%%mm6\n\t"
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"pmaddwd 16(%%esi),%%mm2\n\t"
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"pmaddwd -16(%%esi),%%mm6\n\t"
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"movq 24(%%edx),%%mm3\n\t"
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"movq 88(%%edx),%%mm7\n\t"
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"pmaddwd 24(%%esi),%%mm3\n\t"
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"pmaddwd -8(%%esi),%%mm7\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"paddd %%mm5,%%mm4\n\t"
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"paddd %%mm2,%%mm0\n\t"
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"paddd %%mm6,%%mm4\n\t"
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"paddd %%mm3,%%mm0\n\t"
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"paddd %%mm7,%%mm4\n\t"
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"movq %%mm0,%%mm1\n\t"
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"movq %%mm4,%%mm5\n\t"
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"psrlq $32,%%mm1\n\t"
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"psrlq $32,%%mm5\n\t"
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"paddd %%mm0,%%mm1\n\t"
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"paddd %%mm4,%%mm5\n\t"
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"psrad $13,%%mm1\n\t"
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"psrad $13,%%mm5\n\t"
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"packssdw %%mm1,%%mm1\n\t"
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"packssdw %%mm5,%%mm5\n\t"
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"psubd %%mm0,%%mm0\n\t"
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"psubd %%mm4,%%mm4\n\t"
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"psubsw %%mm1,%%mm0\n\t"
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"psubsw %%mm5,%%mm4\n\t"
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"movq (%%edi), %%mm1\n\t"
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"punpckldq %%mm4, %%mm0\n\t"
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"pand "MANGLE(one_null)", %%mm1\n\t"
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"pand "MANGLE(null_one)", %%mm0\n\t"
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"por %%mm0, %%mm1\n\t"
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"movq %%mm1,(%%edi)\n\t"
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"subl $64,%%esi\n\t"
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"addl $128,%%edx\n\t"
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"leal 8(%%edi),%%edi\n\t"
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"decl %%ecx\n\t"
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"jnz .L04\n\t"
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"movq (%%edx),%%mm0\n\t"
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"pmaddwd (%%esi),%%mm0\n\t"
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"movq 8(%%edx),%%mm1\n\t"
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"pmaddwd 8(%%esi),%%mm1\n\t"
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"movq 16(%%edx),%%mm2\n\t"
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"pmaddwd 16(%%esi),%%mm2\n\t"
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"movq 24(%%edx),%%mm3\n\t"
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"pmaddwd 24(%%esi),%%mm3\n\t"
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"paddd %%mm1,%%mm0\n\t"
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"paddd %%mm2,%%mm0\n\t"
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"paddd %%mm3,%%mm0\n\t"
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"movq %%mm0,%%mm1\n\t"
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"psrlq $32,%%mm1\n\t"
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"paddd %%mm0,%%mm1\n\t"
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"psrad $13,%%mm1\n\t"
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"packssdw %%mm1,%%mm1\n\t"
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"psubd %%mm0,%%mm0\n\t"
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"psubsw %%mm1,%%mm0\n\t"
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"movd %%mm0,%%eax\n\t"
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"movw %%ax,(%%edi)\n\t"
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"emms\n\t"
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:"+c"(i), "+d"(window), "+S"(b0), "+D"(samples)
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:
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:"memory", "%eax");
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return 0;
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}
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