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Implement better CPU Detection

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This commit is contained in:
Jeff Hutchinson 2021-09-15 00:02:50 -04:00
parent 328319b853
commit 433d32f237
3 changed files with 88 additions and 274 deletions
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38
Engine/source/platformWin32/winCPUInfo.cpp
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@ -30,7 +30,7 @@
Platform::SystemInfo_struct Platform::SystemInfo;
extern void PlatformBlitInit();
extern void SetProcessorInfo(Platform::SystemInfo_struct::Processor& pInfo,
char* vendor, U32 processor, U32 properties, U32 properties2); // platform/platformCPU.cc
char* vendor, char* brand, U32 processor, U32 properties, U32 properties2); // platform/platformCPU.cc
void Processor::init()
{
@ -45,7 +45,7 @@ void Processor::init()
Platform::SystemInfo.processor.type = CPU_X86Compatible;
Platform::SystemInfo.processor.name = StringTable->insert("Unknown x86 Compatible");
Platform::SystemInfo.processor.mhz = 0;
Platform::SystemInfo.processor.properties = CPU_PROP_C | CPU_PROP_LE;
Platform::SystemInfo.processor.properties = CPU_PROP_C;
char vendor[0x20];
dMemset(vendor, 0, sizeof(vendor));
@ -65,7 +65,31 @@ void Processor::init()
properties = cpuInfo[3]; // edx
properties2 = cpuInfo[2]; // ecx
SetProcessorInfo(Platform::SystemInfo.processor, vendor, processor, properties, properties2);
char brand[0x40];
dMemset(brand, 0, sizeof(brand));
S32 extendedInfo[4];
__cpuid(extendedInfo, 0x80000000);
S32 numberExtendedIds = extendedInfo[0];
// Sets brand
if (numberExtendedIds >= 0x80000004)
{
int offset = 0;
for (int i = 0; i < 3; ++i)
{
S32 brandInfo[4];
__cpuidex(brandInfo, 0x80000002 + i, 0);
*reinterpret_cast<int*>(brand + offset + 0) = brandInfo[0];
*reinterpret_cast<int*>(brand + offset + 4) = brandInfo[1];
*reinterpret_cast<int*>(brand + offset + 8) = brandInfo[2];
*reinterpret_cast<int*>(brand + offset + 12) = brandInfo[3];
offset += sizeof(S32) * 4;
}
}
SetProcessorInfo(Platform::SystemInfo.processor, vendor, brand, processor, properties, properties2);
// now calculate speed of processor...
U32 nearmhz = 0; // nearest rounded mhz
@ -126,6 +150,14 @@ void Processor::init()
Con::printf( " SSE detected" );
if( Platform::SystemInfo.processor.properties & CPU_PROP_SSE2 )
Con::printf( " SSE2 detected" );
if (Platform::SystemInfo.processor.properties & CPU_PROP_SSE3)
Con::printf( " SSE3 detected" );
if (Platform::SystemInfo.processor.properties & CPU_PROP_SSE3xt)
Con::printf( " SSE3ex detected ");
if (Platform::SystemInfo.processor.properties & CPU_PROP_SSE4_1)
Con::printf( " SSE4.1 detected" );
if (Platform::SystemInfo.processor.properties & CPU_PROP_SSE4_2)
Con::printf( " SSE4.2 detected" );
if( Platform::SystemInfo.processor.isHyperThreaded )
Con::printf( " HT detected" );
if( Platform::SystemInfo.processor.properties & CPU_PROP_MP )