Mercurial > SDL_sound_CoreAudio
view decoders/libmpg123/getcpuflags.h @ 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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/* getcpucpuflags: get cpuflags for ia32 copyright ?-2007 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 (for 3DNow!) extended for general use by Thomas Orgis */ #ifndef MPG123_H_GETCPUFLAGS #define MPG123_H_GETCPUFLAGS /* standard level flags part 1 (ECX)*/ #define FLAG_SSE3 0x00000001 /* standard level flags part 2 (EDX) */ #define FLAG2_MMX 0x00800000 #define FLAG2_SSE 0x02000000 #define FLAG2_SSE2 0x04000000 #define FLAG2_FPU 0x00000001 /* cpuid extended level 1 (AMD) */ #define XFLAG_MMX 0x00800000 #define XFLAG_3DNOW 0x80000000 #define XFLAG_3DNOWEXT 0x40000000 struct cpuflags { unsigned int id; unsigned int std; unsigned int std2; unsigned int ext; }; extern struct cpuflags cpu_flags; unsigned int getcpuflags(struct cpuflags* cf); /* checks the family */ #define cpu_i586(s) ( ((s.id & 0xf00)>>8) == 0 || ((s.id & 0xf00)>>8) > 4 ) /* checking some flags... */ #define cpu_fpu(s) (FLAG2_FPU & s.std2) #define cpu_mmx(s) (FLAG2_MMX & s.std2 || XFLAG_MMX & s.ext) #define cpu_3dnow(s) (XFLAG_3DNOW & s.ext) #define cpu_3dnowext(s) (XFLAG_3DNOWEXT & s.ext) #define cpu_sse(s) (FLAG2_SSE & s.std2) #define cpu_sse2(s) (FLAG2_SSE2 & s.std2) #define cpu_sse3(s) (FLAG_SSE3 & s.std) #endif