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mpv/mp3lib/decode_MMX.c
alex baa587170e attribute_used for gcc3.4 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12293 b3059339-0415-0410-9bf9-f77b7e298cf2
2004-04-26 10:12:40 +00:00

249 lines
6.8 KiB
C
Raw Blame History

/*
* this code comes under GPL
* This code was taken from http://www.mpg123.org
* See ChangeLog of mpg123-0.59s-pre.1 for detail
* Applied to mplayer by Nick Kurshev <nickols_k@mail.ru>
*
* Local ChangeLog:
* - Partial loops unrolling and removing MOVW insn from loops
*/
#include "../config.h"
#include "../mangle.h"
#define real float /* ugly - but only way */
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[] =
{
1056974725,
1057056395,
1057223771,
1057485416,
1057855544,
1058356026,
1059019886,
1059897405,
1061067246,
1062657950,
1064892987,
1066774581,
1069414683,
1073984175,
1079645762,
1092815430,
1057005197,
1057342072,
1058087743,
1059427869,
1061799040,
1065862217,
1071413542,
1084439708,
1057128951,
1058664893,
1063675095,
1076102863,
1057655764,
1067924853,
1060439283,
};
static int temp; // buggy gcc 3.x fails if this is moved into the function :(
void synth_1to1_MMX_s(real *bandPtr, int channel, short *samples,
short *buffs, int *bo)
{
__asm __volatile(
"movl %1,%%ecx\n\t"
"movl %2,%%edi\n\t"
"movl $15,%%ebx\n\t"
"movl %4,%%edx\n\t"
"leal (%%edi,%%ecx,2),%%edi\n\t"
"decl %%ecx\n\t"
"movl %3,%%esi\n\t"
"movl (%%edx),%%eax\n\t"
"jecxz .L01\n\t"
"decl %%eax\n\t"
"andl %%ebx,%%eax\n\t"
"leal 1088(%%esi),%%esi\n\t"
"movl %%eax,(%%edx)\n\t"
".L01:\n\t"
"leal (%%esi,%%eax,2),%%edx\n\t"
"movl %%eax,%5\n\t"
"incl %%eax\n\t"
"andl %%ebx,%%eax\n\t"
"leal 544(%%esi,%%eax,2),%%ecx\n\t"
"incl %%ebx\n\t"
"testl $1, %%eax\n\t"
"jnz .L02\n\t"
"xchgl %%edx,%%ecx\n\t"
"incl %5\n\t"
"leal 544(%%esi),%%esi\n\t"
".L02:\n\t"
"emms\n\t"
"pushl %0\n\t"
"pushl %%edx\n\t"
"pushl %%ecx\n\t"
"call *"MANGLE(dct64_MMX_func)"\n\t"
"addl $12, %%esp\n\t"
"leal 1(%%ebx), %%ecx\n\t"
"subl %5,%%ebx\n\t"
"pushl %%ecx\n\t"
"leal "MANGLE(mp3lib_decwins)"(%%ebx,%%ebx,1), %%edx\n\t"
"shrl $1, %%ecx\n\t"
".balign 16\n\t"
".L03:\n\t"
"movq (%%edx),%%mm0\n\t"
"movq 64(%%edx),%%mm4\n\t"
"pmaddwd (%%esi),%%mm0\n\t"
"pmaddwd 32(%%esi),%%mm4\n\t"
"movq 8(%%edx),%%mm1\n\t"
"movq 72(%%edx),%%mm5\n\t"
"pmaddwd 8(%%esi),%%mm1\n\t"
"pmaddwd 40(%%esi),%%mm5\n\t"
"movq 16(%%edx),%%mm2\n\t"
"movq 80(%%edx),%%mm6\n\t"
"pmaddwd 16(%%esi),%%mm2\n\t"
"pmaddwd 48(%%esi),%%mm6\n\t"
"movq 24(%%edx),%%mm3\n\t"
"movq 88(%%edx),%%mm7\n\t"
"pmaddwd 24(%%esi),%%mm3\n\t"
"pmaddwd 56(%%esi),%%mm7\n\t"
"paddd %%mm1,%%mm0\n\t"
"paddd %%mm5,%%mm4\n\t"
"paddd %%mm2,%%mm0\n\t"
"paddd %%mm6,%%mm4\n\t"
"paddd %%mm3,%%mm0\n\t"
"paddd %%mm7,%%mm4\n\t"
"movq %%mm0,%%mm1\n\t"
"movq %%mm4,%%mm5\n\t"
"psrlq $32,%%mm1\n\t"
"psrlq $32,%%mm5\n\t"
"paddd %%mm1,%%mm0\n\t"
"paddd %%mm5,%%mm4\n\t"
"psrad $13,%%mm0\n\t"
"psrad $13,%%mm4\n\t"
"packssdw %%mm0,%%mm0\n\t"
"packssdw %%mm4,%%mm4\n\t"
"movq (%%edi), %%mm1\n\t"
"punpckldq %%mm4, %%mm0\n\t"
"pand "MANGLE(one_null)", %%mm1\n\t"
"pand "MANGLE(null_one)", %%mm0\n\t"
"por %%mm0, %%mm1\n\t"
"movq %%mm1,(%%edi)\n\t"
"leal 64(%%esi),%%esi\n\t"
"leal 128(%%edx),%%edx\n\t"
"leal 8(%%edi),%%edi\n\t"
"decl %%ecx\n\t"
"jnz .L03\n\t"
"popl %%ecx\n\t"
"andl $1, %%ecx\n\t"
"jecxz .next_loop\n\t"
"movq (%%edx),%%mm0\n\t"
"pmaddwd (%%esi),%%mm0\n\t"
"movq 8(%%edx),%%mm1\n\t"
"pmaddwd 8(%%esi),%%mm1\n\t"
"movq 16(%%edx),%%mm2\n\t"
"pmaddwd 16(%%esi),%%mm2\n\t"
"movq 24(%%edx),%%mm3\n\t"
"pmaddwd 24(%%esi),%%mm3\n\t"
"paddd %%mm1,%%mm0\n\t"
"paddd %%mm2,%%mm0\n\t"
"paddd %%mm3,%%mm0\n\t"
"movq %%mm0,%%mm1\n\t"
"psrlq $32,%%mm1\n\t"
"paddd %%mm1,%%mm0\n\t"
"psrad $13,%%mm0\n\t"
"packssdw %%mm0,%%mm0\n\t"
"movd %%mm0,%%eax\n\t"
"movw %%ax, (%%edi)\n\t"
"leal 32(%%esi),%%esi\n\t"
"leal 64(%%edx),%%edx\n\t"
"leal 4(%%edi),%%edi\n\t"
".next_loop:\n\t"
"subl $64,%%esi\n\t"
"movl $7,%%ecx\n\t"
".balign 16\n\t"
".L04:\n\t"
"movq (%%edx),%%mm0\n\t"
"movq 64(%%edx),%%mm4\n\t"
"pmaddwd (%%esi),%%mm0\n\t"
"pmaddwd -32(%%esi),%%mm4\n\t"
"movq 8(%%edx),%%mm1\n\t"
"movq 72(%%edx),%%mm5\n\t"
"pmaddwd 8(%%esi),%%mm1\n\t"
"pmaddwd -24(%%esi),%%mm5\n\t"
"movq 16(%%edx),%%mm2\n\t"
"movq 80(%%edx),%%mm6\n\t"
"pmaddwd 16(%%esi),%%mm2\n\t"
"pmaddwd -16(%%esi),%%mm6\n\t"
"movq 24(%%edx),%%mm3\n\t"
"movq 88(%%edx),%%mm7\n\t"
"pmaddwd 24(%%esi),%%mm3\n\t"
"pmaddwd -8(%%esi),%%mm7\n\t"
"paddd %%mm1,%%mm0\n\t"
"paddd %%mm5,%%mm4\n\t"
"paddd %%mm2,%%mm0\n\t"
"paddd %%mm6,%%mm4\n\t"
"paddd %%mm3,%%mm0\n\t"
"paddd %%mm7,%%mm4\n\t"
"movq %%mm0,%%mm1\n\t"
"movq %%mm4,%%mm5\n\t"
"psrlq $32,%%mm1\n\t"
"psrlq $32,%%mm5\n\t"
"paddd %%mm0,%%mm1\n\t"
"paddd %%mm4,%%mm5\n\t"
"psrad $13,%%mm1\n\t"
"psrad $13,%%mm5\n\t"
"packssdw %%mm1,%%mm1\n\t"
"packssdw %%mm5,%%mm5\n\t"
"psubd %%mm0,%%mm0\n\t"
"psubd %%mm4,%%mm4\n\t"
"psubsw %%mm1,%%mm0\n\t"
"psubsw %%mm5,%%mm4\n\t"
"movq (%%edi), %%mm1\n\t"
"punpckldq %%mm4, %%mm0\n\t"
"pand "MANGLE(one_null)", %%mm1\n\t"
"pand "MANGLE(null_one)", %%mm0\n\t"
"por %%mm0, %%mm1\n\t"
"movq %%mm1,(%%edi)\n\t"
"subl $64,%%esi\n\t"
"addl $128,%%edx\n\t"
"leal 8(%%edi),%%edi\n\t"
"decl %%ecx\n\t"
"jnz .L04\n\t"
"movq (%%edx),%%mm0\n\t"
"pmaddwd (%%esi),%%mm0\n\t"
"movq 8(%%edx),%%mm1\n\t"
"pmaddwd 8(%%esi),%%mm1\n\t"
"movq 16(%%edx),%%mm2\n\t"
"pmaddwd 16(%%esi),%%mm2\n\t"
"movq 24(%%edx),%%mm3\n\t"
"pmaddwd 24(%%esi),%%mm3\n\t"
"paddd %%mm1,%%mm0\n\t"
"paddd %%mm2,%%mm0\n\t"
"paddd %%mm3,%%mm0\n\t"
"movq %%mm0,%%mm1\n\t"
"psrlq $32,%%mm1\n\t"
"paddd %%mm0,%%mm1\n\t"
"psrad $13,%%mm1\n\t"
"packssdw %%mm1,%%mm1\n\t"
"psubd %%mm0,%%mm0\n\t"
"psubsw %%mm1,%%mm0\n\t"
"movd %%mm0,%%eax\n\t"
"movw %%ax,(%%edi)\n\t"
"emms\n\t"
:
:"m"(bandPtr),"m"(channel),"m"(samples),"m"(buffs),"m"(bo), "m"(temp)
:"memory","%edi","%esi","%ebx","%esp");
}
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