Mercurial > SDL_sound_CoreAudio
view decoders/libmpg123/equalizer_3dnow.S @ 591:8faf61a640f0 tip
Resynced fixes for unit conversion bugs in the Ogg Tremor decoder from SoundDecoder/ALmixer.
Ogg Vorbis uses seconds and we multiply by 1000 to convert to milliseconds. But Ogg Tremor already uses milliseconds but I was still multiplying by 1000.
| author | Eric Wing <ewing . public |-at-| gmail . com> |
|---|---|
| date | Thu, 25 Oct 2012 16:34:18 -0700 |
| parents | 7e08477b0fc1 |
| children |
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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