CPUID.hpp revision 19bac1e08be200c31efd26f0f5fd144c9b3eefd3 
1// SwiftShader Software Renderer
2//
3// Copyright(c) 2005-2011 TransGaming Inc.
4//
5// All rights reserved. No part of this software may be copied, distributed, transmitted,
6// transcribed, stored in a retrieval system, translated into any human or computer
7// language by any means, or disclosed to third parties without the explicit written
8// agreement of TransGaming Inc. Without such an agreement, no rights or licenses, express
9// or implied, including but not limited to any patent rights, are granted to you.
10//
11
12#ifndef sw_CPUID_hpp
13#define sw_CPUID_hpp
14
15namespace sw
16{
17	#if !defined(__x86_64__) && (defined(_M_AMD64) || defined (_M_X64))
18		#define __x86_64__ 1
19	#endif
20
21	class CPUID
22	{
23	public:
24		static bool supportsMMX();
25		static bool supportsCMOV();
26		static bool supportsMMX2();   // MMX instructions added by SSE: pshufw, pmulhuw, pmovmskb, pavgw/b, pextrw, pinsrw, pmaxsw/ub, etc.
27		static bool supportsSSE();
28		static bool supportsSSE2();
29		static bool supportsSSE3();
30		static bool supportsSSSE3();
31		static bool supportsSSE4_1();
32		static int coreCount();
33		static int processAffinity();
34
35		static void setEnableMMX(bool enable);
36		static void setEnableCMOV(bool enable);
37		static void setEnableSSE(bool enable);
38		static void setEnableSSE2(bool enable);
39		static void setEnableSSE3(bool enable);
40		static void setEnableSSSE3(bool enable);
41		static void setEnableSSE4_1(bool enable);
42
43	private:
44		static bool MMX;
45		static bool CMOV;
46		static bool SSE;
47		static bool SSE2;
48		static bool SSE3;
49		static bool SSSE3;
50		static bool SSE4_1;
51		static int cores;
52		static int affinity;
53
54		static bool enableMMX;
55		static bool enableCMOV;
56		static bool enableSSE;
57		static bool enableSSE2;
58		static bool enableSSE3;
59		static bool enableSSSE3;
60		static bool enableSSE4_1;
61
62		static bool detectMMX();
63		static bool detectCMOV();
64		static bool detectSSE();
65		static bool detectSSE2();
66		static bool detectSSE3();
67		static bool detectSSSE3();
68		static bool detectSSE4_1();
69		static int detectCoreCount();
70		static int detectAffinity();
71	};
72}
73
74namespace sw
75{
76	inline bool CPUID::supportsMMX()
77	{
78		return MMX && enableMMX;
79	}
80
81	inline bool CPUID::supportsCMOV()
82	{
83		return CMOV && enableCMOV;
84	}
85
86	inline bool CPUID::supportsMMX2()
87	{
88		return supportsSSE();   // Coincides with 64-bit integer vector instructions supported by SSE
89	}
90
91	inline bool CPUID::supportsSSE()
92	{
93		return SSE && enableSSE;
94	}
95
96	inline bool CPUID::supportsSSE2()
97	{
98		return SSE2 && enableSSE2;
99	}
100
101	inline bool CPUID::supportsSSE3()
102	{
103		return SSE3 && enableSSE3;
104	}
105
106	inline bool CPUID::supportsSSSE3()
107	{
108		return SSSE3 && enableSSSE3;
109	}
110
111	inline bool CPUID::supportsSSE4_1()
112	{
113		return SSE4_1 && enableSSE4_1;
114	}
115
116	inline int CPUID::coreCount()
117	{
118		return cores;
119	}
120
121	inline int CPUID::processAffinity()
122	{
123		return affinity;
124	}
125}
126
127#endif   // sw_CPUID_hpp
128