Mercurial > SDL_sound_CoreAudio
view decoders/libmpg123/equalizer_3dnow.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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/* equalizer_3dnow: 3DNow! optimized do_equalizer() 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 KIMURA Takuhiro */ #include "mangle.h" .text ALIGN4 .globl ASM_NAME(do_equalizer_3dnow) /* .type ASM_NAME(do_equalizer_3dnow),@function */ /* void do_equalizer(real *bandPtr,int channel, real equalizer[2][32]); */ ASM_NAME(do_equalizer_3dnow): pushl %esi pushl %ebx /* bandPtr */ movl 12(%esp),%ebx /* channel */ movl 16(%esp),%ecx xorl %edx,%edx /* equalizer */ movl 20(%esp),%esi sall $7,%ecx ALIGN4 .L9: movq (%ebx,%edx),%mm0 pfmul (%esi,%ecx),%mm0 movq 8(%ebx,%edx),%mm1 pfmul 8(%esi,%ecx),%mm1 movq %mm0,(%ebx,%edx) movq 16(%ebx,%edx),%mm0 pfmul 16(%esi,%ecx),%mm0 movq %mm1,8(%ebx,%edx) movq 24(%ebx,%edx),%mm1 pfmul 24(%esi,%ecx),%mm1 movq %mm0,16(%ebx,%edx) movq 32(%ebx,%edx),%mm0 pfmul 32(%esi,%ecx),%mm0 movq %mm1,24(%ebx,%edx) movq 40(%ebx,%edx),%mm1 pfmul 40(%esi,%ecx),%mm1 movq %mm0,32(%ebx,%edx) movq 48(%ebx,%edx),%mm0 pfmul 48(%esi,%ecx),%mm0 movq %mm1,40(%ebx,%edx) movq 56(%ebx,%edx),%mm1 pfmul 56(%esi,%ecx),%mm1 movq %mm0,48(%ebx,%edx) movq %mm1,56(%ebx,%edx) addl $64,%edx addl $32,%ecx cmpl $124,%edx jle .L9 ALIGN4 popl %ebx popl %esi ret /* Mark non-executable stack. */ #if defined(__linux__) && defined(__ELF__) .section .note.GNU-stack,"",%progbits #endif