94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
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/*
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* mptCPU.h
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* --------
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* Purpose: CPU feature detection.
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#pragma once
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#include "openmpt/all/BuildSettings.hpp"
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OPENMPT_NAMESPACE_BEGIN
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namespace CPU
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{
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namespace feature {
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inline constexpr uint32 lm = 0x00004; // Processor supports long mode (amd64)
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inline constexpr uint32 mmx = 0x00010; // Processor supports MMX instructions
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inline constexpr uint32 sse = 0x00100; // Processor supports SSE instructions
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inline constexpr uint32 sse2 = 0x00200; // Processor supports SSE2 instructions
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inline constexpr uint32 sse3 = 0x00400; // Processor supports SSE3 instructions
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inline constexpr uint32 ssse3 = 0x00800; // Processor supports SSSE3 instructions
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inline constexpr uint32 sse4_1 = 0x01000; // Processor supports SSE4.1 instructions
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inline constexpr uint32 sse4_2 = 0x02000; // Processor supports SSE4.2 instructions
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inline constexpr uint32 avx = 0x10000; // Processor supports AVX instructions
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inline constexpr uint32 avx2 = 0x20000; // Processor supports AVX2 instructions
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} // namespace feature
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#ifdef MPT_ENABLE_ARCH_INTRINSICS
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extern uint32 EnabledFeatures;
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struct Info
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{
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public:
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uint32 AvailableFeatures = 0;
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uint32 CPUID = 0;
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char VendorID[16+1] = {};
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char BrandID[4*4*3+1] = {};
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uint16 Family = 0;
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uint8 Model = 0;
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uint8 Stepping = 0;
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private:
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Info();
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public:
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static const Info & Get();
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};
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void EnableAvailableFeatures();
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struct AvailableFeaturesEnabler
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{
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AvailableFeaturesEnabler()
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{
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EnableAvailableFeatures();
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}
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};
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// enabled processor features for inline asm and intrinsics
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MPT_FORCEINLINE uint32 GetEnabledFeatures()
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{
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return EnabledFeatures;
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}
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MPT_FORCEINLINE bool HasFeatureSet(uint32 features)
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{
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return features == (GetEnabledFeatures() & features);
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}
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#endif // MPT_ENABLE_ARCH_INTRINSICS
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uint32 GetMinimumFeatures();
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} // namespace CPU
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OPENMPT_NAMESPACE_END
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