Mercurial > SDL_sound_CoreAudio
view decoders/libmpg123/tabinit_mmx.S @ 562:7e08477b0fc1
MP3 decoder upgrade work.
Ripped out SMPEG and mpglib support, replaced it with "mpg123.c" and libmpg123.
libmpg123 is a much better version of mpglib, so it should solve all the
problems about MP3's not seeking, or most modern MP3's not playing at all,
etc. Since you no longer have to make a tradeoff with SMPEG for features, and
SMPEG is basically rotting, I removed it from the project.
There is still work to be done with libmpg123...there are MMX, 3DNow, SSE,
Altivec, etc decoders which we don't have enabled at the moment, and the
build system could use some work to make this compile more cleanly, etc.
Still: huge win.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Fri, 30 Jan 2009 02:44:47 -0500 |
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| children |
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/* tabinit_mmx: make_decode_tables_mmx copyright ?-2006 by the mpg123 project - free software under the terms of the LGPL 2.1 see COPYING and AUTHORS files in distribution or http://mpg123.org initially written by the mysterious higway (apparently) */ #include "mangle.h" .data ALIGN32 .globl ASM_NAME(costab_mmxsse) ASM_NAME(costab_mmxsse): .long 1056974725 .long 1057056395 .long 1057223771 .long 1057485416 .long 1057855544 .long 1058356026 .long 1059019886 .long 1059897405 .long 1061067246 .long 1062657950 .long 1064892987 .long 1066774581 .long 1069414683 .long 1073984175 .long 1079645762 .long 1092815430 .long 1057005197 .long 1057342072 .long 1058087743 .long 1059427869 .long 1061799040 .long 1065862217 .long 1071413542 .long 1084439708 .long 1057128951 .long 1058664893 .long 1063675095 .long 1076102863 .long 1057655764 .long 1067924853 .long 1060439283 ALIGN32 intwinbase: .value 0, -1, -1, -1, -1, -1, -1, -2 .value -2, -2, -2, -3, -3, -4, -4, -5 .value -5, -6, -7, -7, -8, -9, -10, -11 .value -13, -14, -16, -17, -19, -21, -24, -26 .value -29, -31, -35, -38, -41, -45, -49, -53 .value -58, -63, -68, -73, -79, -85, -91, -97 .value -104, -111, -117, -125, -132, -139, -147, -154 .value -161, -169, -176, -183, -190, -196, -202, -208 .value -213, -218, -222, -225, -227, -228, -228, -227 .value -224, -221, -215, -208, -200, -189, -177, -163 .value -146, -127, -106, -83, -57, -29, 2, 36 .value 72, 111, 153, 197, 244, 294, 347, 401 .value 459, 519, 581, 645, 711, 779, 848, 919 .value 991, 1064, 1137, 1210, 1283, 1356, 1428, 1498 .value 1567, 1634, 1698, 1759, 1817, 1870, 1919, 1962 .value 2001, 2032, 2057, 2075, 2085, 2087, 2080, 2063 .value 2037, 2000, 1952, 1893, 1822, 1739, 1644, 1535 .value 1414, 1280, 1131, 970, 794, 605, 402, 185 .value -45, -288, -545, -814, -1095, -1388, -1692, -2006 .value -2330, -2663, -3004, -3351, -3705, -4063, -4425, -4788 .value -5153, -5517, -5879, -6237, -6589, -6935, -7271, -7597 .value -7910, -8209, -8491, -8755, -8998, -9219, -9416, -9585 .value -9727, -9838, -9916, -9959, -9966, -9935, -9863, -9750 .value -9592, -9389, -9139, -8840, -8492, -8092, -7640, -7134 .value -6574, -5959, -5288, -4561, -3776, -2935, -2037, -1082 .value -70, 998, 2122, 3300, 4533, 5818, 7154, 8540 .value 9975, 11455, 12980, 14548, 16155, 17799, 19478, 21189 .value 22929, 24694, 26482, 28289, 30112, 31947,-26209,-24360 .value -22511,-20664,-18824,-16994,-15179,-13383,-11610, -9863 .value -8147, -6466, -4822, -3222, -1667, -162, 1289, 2684 .value 4019, 5290, 6494, 7629, 8692, 9679, 10590, 11420 .value 12169, 12835, 13415, 13908, 14313, 14630, 14856, 14992 .value 15038 intwindiv: .long 0x47800000 # 65536.0 .text ALIGN32 /* void make_decode_tables_mmx_asm(long scaleval, float* decwin_mmx, float *decwins); */ .globl ASM_NAME(make_decode_tables_mmx_asm) ASM_NAME(make_decode_tables_mmx_asm): pushl %edi pushl %esi pushl %ebx /* stack: 0=ebx, 4=esi, 8=edi, 12=back, 16=scaleval, 20=decwin_mmx, 24=decwins */ xorl %ecx,%ecx xorl %ebx,%ebx movl $32,%esi movl $intwinbase,%edi negl 16(%esp) /* scaleval */ pushl $2 /* intwinbase step */ /* stack: 20=scaleval 24=decwin_mmx, 28=decwins */ .L00: cmpl $528,%ecx jnc .L02 movswl (%edi),%eax cmpl $intwinbase+444,%edi jc .L01 addl $60000,%eax .L01: pushl %eax /* stack: 24=scaleval 28=decwin_mmx, 32=decwins */ fildl (%esp) fdivs intwindiv fimull 24(%esp) /* scaleval */ /* eax used to be popped the line before... I'll just use it here a bit */ movl 28(%esp),%eax /* decwin_mmx */ fsts (%eax,%ecx,4) fstps 64(%eax,%ecx,4) popl %eax /* stack: 20=scaleval 24=decwin_mmx, 28=decwins */ .L02: leal -1(%esi),%edx and %ebx,%edx cmp $31,%edx jnz .L03 addl $-1023,%ecx test %esi,%ebx jz .L03 negl 20(%esp) .L03: addl %esi,%ecx addl (%esp),%edi incl %ebx cmpl $intwinbase,%edi jz .L04 cmp $256,%ebx jnz .L00 negl (%esp) jmp .L00 .L04: popl %eax xorl %ecx,%ecx xorl %ebx,%ebx pushl $2 /* paired with popl above */ .L05: cmpl $528,%ecx jnc .L11 movswl (%edi),%eax cmpl $intwinbase+444,%edi jc .L06 addl $60000,%eax .L06: cltd imull 20(%esp) shrdl $17,%edx,%eax cmpl $32767,%eax movl $1055,%edx jle .L07 movl $32767,%eax jmp .L08 .L07: cmpl $-32767,%eax jge .L08 movl $-32767,%eax .L08: /* going to use ebx for decwins, watch the jumps */ pushl %ebx /* stack: 24=scaleval 28=decwin_mmx, 32=decwins */ movl 32(%esp),%ebx cmpl $512,%ecx jnc .L09 subl %ecx,%edx movw %ax,(%ebx,%edx,2) /* decwins */ movw %ax,-32(%ebx,%edx,2) .L09: testl $1,%ecx jnz .L10 negl %eax .L10: movw %ax,(%ebx,%ecx,2) movw %ax,32(%ebx,%ecx,2) popl %ebx /* that has to match the pushl before */ .L11: leal -1(%esi),%edx and %ebx,%edx cmp $31,%edx jnz .L12 addl $-1023,%ecx test %esi,%ebx jz .L12 negl 20(%esp) .L12: addl %esi,%ecx addl (%esp),%edi incl %ebx cmpl $intwinbase,%edi jz .L13 cmp $256,%ebx jnz .L05 negl (%esp) jmp .L05 .L13: popl %eax popl %ebx popl %esi popl %edi ret /* Mark non-executable stack. */ #if defined(__linux__) && defined(__ELF__) .section .note.GNU-stack,"",%progbits #endif