feat(memory): add SMemAlloc, SMemFree, and SMemReAlloc

storm/CMakeLists.txt

@@ -0,0 +1,5 @@
+file(GLOB STORM_SOURCES "*.cpp")
+
+add_library(storm STATIC
+    ${STORM_SOURCES}
+)

storm/Memory.cpp

@@ -0,0 +1,66 @@
+#include "Memory.hpp"
+
+constexpr size_t ALIGNMENT = 8;
+
+void* SMemAlloc(size_t bytes, const char* filename, int32_t linenumber, uint32_t flags) {
+    size_t alignedBytes = (bytes + (ALIGNMENT - 1)) & ~(ALIGNMENT - 1);
+
+    void* result;
+
+    if (flags & 0x8) {
+        result = calloc(1, alignedBytes);
+    } else {
+        result = malloc(alignedBytes);
+    }
+
+    if (result) {
+        return result;
+    } else {
+        // TODO handle errors
+        return nullptr;
+    }
+}
+
+void SMemFree(void* ptr) {
+    if (ptr) {
+        free(ptr);
+    }
+}
+
+void SMemFree(void* ptr, const char* filename, int32_t linenumber, uint32_t flags) {
+    if (ptr) {
+        free(ptr);
+    }
+}
+
+void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenumber, uint32_t flags) {
+    if (flags == 0xB00BEEE5) {
+        return nullptr;
+    }
+
+    if (!ptr) {
+        return SMemAlloc(bytes, filename, linenumber, flags);
+    }
+
+    if (flags & 0x10) {
+        return nullptr;
+    }
+
+    size_t alignedBytes = (bytes + (ALIGNMENT - 1)) & ~(ALIGNMENT - 1);
+
+    void* result = realloc(ptr, alignedBytes);
+
+    if (result) {
+        if (flags & 0x8) {
+            // TODO zero out expanded portion
+        }
+
+        return result;
+    } else {
+        if (alignedBytes) {
+            // TODO handle errors
+        }
+
+        return NULL;
+    }
+}

storm/Memory.hpp

@@ -0,0 +1,15 @@
+#ifndef STORM_MEMORY_HPP
+#define STORM_MEMORY_HPP
+
+#include <cstdint>
+#include <cstdlib>
+
+void* SMemAlloc(size_t bytes, const char* filename, int32_t linenumber, uint32_t flags);
+
+void SMemFree(void* ptr);
+
+void SMemFree(void* ptr, const char* filename, int32_t linenumber, uint32_t flags);
+
+void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenumber, uint32_t flags);
+
+#endif