mirror of https://github.com/mpv-player/mpv
156 lines
4.4 KiB
C
156 lines
4.4 KiB
C
/*
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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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long __attribute__((aligned(8))) decwins [544];
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static long decwin [544];
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static short intwinbase_MMX[] =
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{
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0, -1, -1, -1, -1, -1, -1, -2,
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-2, -2, -2, -3, -3, -4, -4, -5,
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-5, -6, -7, -7, -8, -9, -10, -11,
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-13, -14, -16, -17, -19, -21, -24, -26,
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-29, -31, -35, -38, -41, -45, -49, -53,
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-58, -63, -68, -73, -79, -85, -91, -97,
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-104, -111, -117, -125, -132, -139, -147, -154,
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-161, -169, -176, -183, -190, -196, -202, -208,
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-213, -218, -222, -225, -227, -228, -228, -227,
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-224, -221, -215, -208, -200, -189, -177, -163,
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-146, -127, -106, -83, -57, -29, 2, 36,
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72, 111, 153, 197, 244, 294, 347, 401,
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459, 519, 581, 645, 711, 779, 848, 919,
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991, 1064, 1137, 1210, 1283, 1356, 1428, 1498,
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1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962,
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2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063,
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2037, 2000, 1952, 1893, 1822, 1739, 1644, 1535,
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1414, 1280, 1131, 970, 794, 605, 402, 185,
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-45, -288, -545, -814, -1095, -1388, -1692, -2006,
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-2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788,
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-5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597,
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-7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585,
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-9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750,
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-9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134,
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-6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082,
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-70, 998, 2122, 3300, 4533, 5818, 7154, 8540,
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9975, 11455, 12980, 14548, 16155, 17799, 19478, 21189,
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22929, 24694, 26482, 28289, 30112, 31947,-26209,-24360,
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-22511,-20664,-18824,-16994,-15179,-13383,-11610, -9863,
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-8147, -6466, -4822, -3222, -1667, -162, 1289, 2684,
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4019, 5290, 6494, 7629, 8692, 9679, 10590, 11420,
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12169, 12835, 13415, 13908, 14313, 14630, 14856, 14992,
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15038
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};
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static long intwindiv = 0x47800000;
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void make_decode_tables_MMX(long scaleval)
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{
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long intwinbase_step;
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intwinbase_step=2;
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scaleval =- scaleval;
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__asm __volatile(
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"xorl %%ecx,%%ecx\n\t"
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"xorl %%ebx,%%ebx\n\t"
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"movl $32,%%esi\n\t"
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"movl %0,%%edi\n\t"
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".L00:\n\t"
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"cmpl $528,%%ecx\n\t"
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"jnc .L02\n\t"
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"movswl (%%edi),%%eax\n\t"
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"cmpl %0+444,%%edi\n\t"
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"jc .L01\n\t"
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"addl $60000,%%eax\n\t"
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".L01:\n\t"
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"pushl %%eax\n\t"
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"fildl (%%esp)\n\t"
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"fdivs intwindiv\n\t"
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"popl %%eax\n\t"
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"fimull %2\n\t"
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"fsts %1(,%%ecx,4)\n\t"
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"fstps %1+64(,%%ecx,4)\n\t"
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".L02:\n\t"
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"leal -1(%%esi),%%edx\n\t"
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"and %%ebx,%%edx\n\t"
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"cmp $31,%%edx\n\t"
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"jnz .L03\n\t"
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"addl $-1023,%%ecx\n\t"
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"test %%esi,%%ebx\n\t"
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"jz .L03\n\t"
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"negl %2\n\t"
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".L03:\n\t"
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"addl %%esi,%%ecx\n\t"
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"addl %3,%%edi\n\t"
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"incl %%ebx\n\t"
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"cmpl %0,%%edi\n\t"
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"jz .L04\n\t"
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"cmp $256,%%ebx\n\t"
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"jnz .L00\n\t"
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"negl %3\n\t"
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"jmp .L00\n\t"
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".L04:\n\t"
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::"g"(intwinbase_MMX),"m"(decwin[0]),"m"(scaleval),"m"(intwinbase_step)
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:"memory","%ebx","%esi","%edi");
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intwinbase_step=2;
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__asm __volatile(
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"xorl %%ecx,%%ecx\n\t"
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"xorl %%ebx,%%ebx\n\t"
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".L05:\n\t"
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"cmpl $528,%%ecx\n\t"
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"jnc .L11\n\t"
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"movswl (%%edi),%%eax\n\t"
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"cmpl %0+444,%%edi\n\t"
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"jc .L06\n\t"
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"addl $60000,%%eax\n\t"
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".L06:\n\t"
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"cltd\n\t"
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"imull %2\n\t"
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"shrdl $17,%%edx,%%eax\n\t"
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"cmpl $32767,%%eax\n\t"
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"movl $1055,%%edx\n\t"
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"jle .L07\n\t"
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"movl $32767,%%eax\n\t"
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"jmp .L08\n\t"
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".L07:\n\t"
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"cmpl $-32767,%%eax\n\t"
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"jge .L08\n\t"
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"movl $-32767,%%eax\n\t"
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".L08:\n\t"
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"cmpl $512,%%ecx\n\t"
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"jnc .L09\n\t"
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"subl %%ecx,%%edx\n\t"
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"movw %%ax,%1(,%%edx,2)\n\t"
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"movw %%ax,%1-32(,%%edx,2)\n\t"
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".L09:\n\t"
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"testl $1,%%ecx\n\t"
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"jnz .L10\n\t"
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"negl %%eax\n\t"
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".L10:\n\t"
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"movw %%ax,%1(,%%ecx,2)\n\t"
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"movw %%ax,%1+32(,%%ecx,2)\n\t"
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".L11:\n\t"
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"leal -1(%%esi),%%edx\n\t"
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"and %%ebx,%%edx\n\t"
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"cmp $31,%%edx\n\t"
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"jnz .L12\n\t"
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"addl $-1023,%%ecx\n\t"
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"test %%esi,%%ebx\n\t"
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"jz .L12\n\t"
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"negl %2\n\t"
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".L12:\n\t"
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"addl %%esi,%%ecx\n\t"
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"addl %3,%%edi\n\t"
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"incl %%ebx\n\t"
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"cmpl %0,%%edi\n\t"
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"jz .L13\n\t"
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"cmp $256,%%ebx\n\t"
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"jnz .L05\n\t"
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"negl %3\n\t"
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"jmp .L05\n\t"
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".L13:\n\t"
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::"g"(intwinbase_MMX),"m"(decwins[0]),"m"(scaleval),"m"(intwinbase_step)
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:"memory","%ebx","%esi","%edi");
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}
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