Resolve "MacOS Support"

Closes #86 (closed)

config/lib/vma/vma.cpp

@@ -3,5 +3,56 @@
 #define _DEBUG
 #endif
 
+#ifndef _MSVC_LANG
+#ifdef __MINGW32__
+#include <stdint.h>
+#include <stdlib.h>
+
+class VmaMutex {
+public:
+	VmaMutex() : m_locked(false) {}
+	
+	void Lock() {
+		while (m_locked);
+		m_locked = true;
+	}
+	
+	void Unlock() {
+		m_locked = false;
+	}
+private:
+	bool m_locked;
+};
+
+#define VMA_MUTEX VmaMutex
+
+template <typename T>
+T* custom_overestimate_malloc(size_t size) {
+	return new T[size + (sizeof(T) - 1) / sizeof(T)];
+}
+
+void* custom_aligned_malloc(size_t alignment, size_t size) {
+	if (alignment > 4) {
+		return custom_overestimate_malloc<uint64_t>(size);
+	} else
+	if (alignment > 2) {
+		return custom_overestimate_malloc<uint32_t>(size);
+	} else
+	if (alignment > 1) {
+		return custom_overestimate_malloc<uint16_t>(size);
+	} else {
+		return custom_overestimate_malloc<uint8_t>(size);
+	}
+}
+
+void custom_free(void *ptr) {
+	delete[] reinterpret_cast<uint8_t*>(ptr);
+}
+
+#define VMA_SYSTEM_ALIGNED_MALLOC(size, alignment) (custom_aligned_malloc(alignment, size))
+#define VMA_SYSTEM_FREE(ptr) (custom_free(ptr))
+#endif
+#endif
+
 #define VMA_IMPLEMENTATION
 #include "vk_mem_alloc.hpp"