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comparison decoders/libmpg123/getcpuflags.h @ 562:7e08477b0fc1

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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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561:f2985e08589c 562:7e08477b0fc1
1 /*
2 getcpucpuflags: get cpuflags for ia32
3
4 copyright ?-2007 by the mpg123 project - free software under the terms of the LGPL 2.1
5 see COPYING and AUTHORS files in distribution or http:#mpg123.org
6 initially written by KIMURA Takuhiro (for 3DNow!)
7 extended for general use by Thomas Orgis
8 */
9
10 #ifndef MPG123_H_GETCPUFLAGS
11 #define MPG123_H_GETCPUFLAGS
12
13 /* standard level flags part 1 (ECX)*/
14 #define FLAG_SSE3 0x00000001
15
16 /* standard level flags part 2 (EDX) */
17 #define FLAG2_MMX 0x00800000
18 #define FLAG2_SSE 0x02000000
19 #define FLAG2_SSE2 0x04000000
20 #define FLAG2_FPU 0x00000001
21 /* cpuid extended level 1 (AMD) */
22 #define XFLAG_MMX 0x00800000
23 #define XFLAG_3DNOW 0x80000000
24 #define XFLAG_3DNOWEXT 0x40000000
25
26 struct cpuflags
27 {
28 unsigned int id;
29 unsigned int std;
30 unsigned int std2;
31 unsigned int ext;
32 };
33
34 extern struct cpuflags cpu_flags;
35
36 unsigned int getcpuflags(struct cpuflags* cf);
37
38 /* checks the family */
39 #define cpu_i586(s) ( ((s.id & 0xf00)>>8) == 0 || ((s.id & 0xf00)>>8) > 4 )
40 /* checking some flags... */
41 #define cpu_fpu(s) (FLAG2_FPU & s.std2)
42 #define cpu_mmx(s) (FLAG2_MMX & s.std2 || XFLAG_MMX & s.ext)
43 #define cpu_3dnow(s) (XFLAG_3DNOW & s.ext)
44 #define cpu_3dnowext(s) (XFLAG_3DNOWEXT & s.ext)
45 #define cpu_sse(s) (FLAG2_SSE & s.std2)
46 #define cpu_sse2(s) (FLAG2_SSE2 & s.std2)
47 #define cpu_sse3(s) (FLAG_SSE3 & s.std)
48
49 #endif