Add memory allocation tracking data to debug state

src/include/Dengine/Debug.h

@@ -15,7 +15,9 @@ enum DebugCallCount
 
 typedef struct DebugState
 {
+	i32 totalMemoryAllocated;
 	i32 *callCount;
+
 	/* Debug strings rendered in top left corner */
 	char debugStrings[256][64];
 	i32 numDebugStrings;

src/include/Dengine/Math.h

@@ -2,7 +2,6 @@
 #define DENGINE_MATH_H
 
 #include <math.h>
-
 #include "Dengine/Common.h"
 
 #define squared(x) (x * x)

src/include/Dengine/Platform.h

@@ -3,8 +3,16 @@
 
 #include <Windows.h>
 #include <stdio.h>
+#include <stdlib.h>
 
 #include "Dengine/Common.h"
+#include "Dengine/Debug.h"
+
+// TODO(doyle): Create own custom memory allocator
+#define PLATFORM_MEM_ALLOC(num, type)                                          \
+	CAST(type *) platform_memoryAlloc(num * sizeof(type))
+#define PLATFORM_MEM_FREE(ptr, bytes)                                          \
+	platform_memoryFree(CAST(void *) ptr, bytes)
 
 typedef struct
 {
@@ -12,15 +20,38 @@ typedef struct
 	i32 size;
 } PlatformFileRead;
 
-i32 platform_readFileToBuffer(const char *const filePath,
-                              PlatformFileRead *file);
+// TODO(doyle): numBytes in mem free is temporary until we create custom
+// allocator since we haven't put in a system to track memory usage per
+// allocation
+inline void platform_memoryFree(void *data, i32 numBytes)
+{
+	if (data) free(data);
+
+#ifdef DENGINE_DEBUG
+	GLOBAL_debugState.totalMemoryAllocated -= numBytes;
+#endif
+
+}
+
+inline void *platform_memoryAlloc(i32 numBytes)
+{
+	void *result = calloc(1, numBytes);
+
+#ifdef DENGINE_DEBUG
+	if (result)
+		GLOBAL_debugState.totalMemoryAllocated += numBytes;
+#endif
+
+	return result;
+}
 
 inline void platform_closeFileRead(PlatformFileRead *file)
 {
-	if (file->buffer)
-	{
-		free(file->buffer);
-	}
+	PLATFORM_MEM_FREE(file->buffer, file->size);
 }
 
+
+i32 platform_readFileToBuffer(const char *const filePath,
+                              PlatformFileRead *file);
+
 #endif