Core/HardwareInfo: Added GetTotalMemory

Former-commit-id: 71289723115161dd253ccb65c1c91af65344c678

src/Nazara/Core/HardwareInfo.cpp

@@ -116,6 +116,13 @@ NzString NzHardwareInfo::GetProcessorVendorName()
 	return vendorNames[s_vendorEnum+1];
 }
 
+nzUInt64 NzHardwareInfo::GetTotalMemory()
+{
+	///DOC: Ne nécessite pas l'initialisation de HardwareInfo pour fonctionner
+	static nzUInt64 totalMemory = NzHardwareInfoImpl::GetTotalMemory();
+	return totalMemory;
+}
+
 bool NzHardwareInfo::HasCapability(nzProcessorCap capability)
 {
 	#ifdef NAZARA_DEBUG

src/Nazara/Core/Posix/HardwareInfoImpl.cpp

@@ -24,6 +24,14 @@ unsigned int NzHardwareInfoImpl::GetProcessorCount()
 	return sysconf(_SC_NPROCESSORS_CONF);
 }
 
+nzUInt64 NzHardwareInfoImpl::GetTotalMemory()
+{
+	nzUInt64 pages = sysconf(_SC_PHYS_PAGES);
+	nzUInt64 page_size = sysconf(_SC_PAGE_SIZE);
+
+    return pages * page_size;
+}
+
 bool NzHardwareInfoImpl::IsCpuidSupported()
 {
 #ifdef NAZARA_PLATFORM_x64

src/Nazara/Core/Posix/HardwareInfoImpl.hpp

@@ -15,6 +15,7 @@ class NzHardwareInfoImpl
 	public:
 		static void Cpuid(nzUInt32 functionId, nzUInt32 subFunctionId, nzUInt32 registers[4]);
 		static unsigned int GetProcessorCount();
+		static nzUInt64 GetTotalMemory();
 		static bool IsCpuidSupported();
 };
 

src/Nazara/Core/Win32/HardwareInfoImpl.cpp

@@ -38,6 +38,15 @@ unsigned int NzHardwareInfoImpl::GetProcessorCount()
 	return infos.dwNumberOfProcessors;
 }
 
+nzUInt64 NzHardwareInfoImpl::GetTotalMemory()
+{
+	MEMORYSTATUSEX memStatus;
+	memStatus.dwLength = sizeof(memStatus);
+	GlobalMemoryStatusEx(&memStatus);
+
+	return memStatus.ullTotalPhys;
+}
+
 bool NzHardwareInfoImpl::IsCpuidSupported()
 {
 #ifdef NAZARA_PLATFORM_x64

src/Nazara/Core/Win32/HardwareInfoImpl.hpp

@@ -14,6 +14,7 @@ class NzHardwareInfoImpl
 	public:
 		static void Cpuid(nzUInt32 functionId, nzUInt32 subFunctionId, nzUInt32 registers[4]);
 		static unsigned int GetProcessorCount();
+		static nzUInt64 GetTotalMemory();
 		static bool IsCpuidSupported();
 };