Folder restructuring from primedev (#624)v1.21.2-rc3v1.21.2

Copies of over the primedev folder structure for easier cherry-picking of further changes

Co-authored-by: F1F7Y <filip.bartos07@proton.me>

1 files changed, 30 insertions, 0 deletions

diff --git a/primedev/core/tier0.cpp b/primedev/core/tier0.cpp
new file mode 100644
index 00000000..1f59722c
--- /dev/null
+++ b/primedev/core/tier0.cpp
@@ -0,0 +1,30 @@
+#include "tier0.h"
+
+IMemAlloc* g_pMemAllocSingleton = nullptr;
+
+CommandLineType CommandLine;
+Plat_FloatTimeType Plat_FloatTime;
+ThreadInServerFrameThreadType ThreadInServerFrameThread;
+
+typedef IMemAlloc* (*CreateGlobalMemAllocType)();
+CreateGlobalMemAllocType CreateGlobalMemAlloc;
+
+// needs to be a seperate function, since memalloc.cpp calls it
+void TryCreateGlobalMemAlloc()
+{
+	// init memalloc stuff
+	CreateGlobalMemAlloc =
+		reinterpret_cast<CreateGlobalMemAllocType>(GetProcAddress(GetModuleHandleA("tier0.dll"), "CreateGlobalMemAlloc"));
+	g_pMemAllocSingleton = CreateGlobalMemAlloc(); // if it already exists, this returns the preexisting IMemAlloc instance
+}
+
+ON_DLL_LOAD("tier0.dll", Tier0GameFuncs, (CModule module))
+{
+	// shouldn't be necessary, but do this just in case
+	TryCreateGlobalMemAlloc();
+
+	// setup tier0 funcs
+	CommandLine = module.GetExport("CommandLine").RCast<CommandLineType>();
+	Plat_FloatTime = module.GetExport("Plat_FloatTime").RCast<Plat_FloatTimeType>();
+	ThreadInServerFrameThread = module.GetExport("ThreadInServerFrameThread").RCast<ThreadInServerFrameThreadType>();
+}