Need to allocate memory via callback to renderdoc.dll as well as freeing

* This whole interface really needs a tidy-up at some point, but for now
  this is enough.

renderdoc/api/replay/basic_types.h

@@ -63,11 +63,12 @@ struct array
 	}
 
 #ifdef RENDERDOC_EXPORTS
+	static void *allocate(size_t s) { return malloc(s); }
 	static void deallocate(const void *p) { free((void *)p); }
 #else
+	static void *allocate(size_t s) { return RENDERDOC_AllocArrayMem(s); }
 	static void deallocate(const void *p) { RENDERDOC_FreeArrayMem(p); }
 #endif
-	static void *allocate(size_t s) { return malloc(s); }
 
 	T &operator [](size_t i) { return elems[i]; }
 	const T &operator [](size_t i) const { return elems[i]; }

renderdoc/api/replay/renderdoc_replay.h

@@ -60,6 +60,9 @@ typedef uint32_t bool32;
 extern "C" RENDERDOC_API void RENDERDOC_CC RENDERDOC_FreeArrayMem(const void *mem);
 typedef void (RENDERDOC_CC *pRENDERDOC_FreeArrayMem)(const void *mem);
 
+extern "C" RENDERDOC_API void *RENDERDOC_CC RENDERDOC_AllocArrayMem(size_t sz);
+typedef void *(RENDERDOC_CC *pRENDERDOC_AllocArrayMem)(size_t sz);
+
 #include "basic_types.h"
 
 // We give every resource a globally unique ID so that we can differentiate

renderdoc/replay/entry_points.cpp

@@ -383,6 +383,12 @@ void RENDERDOC_CC RENDERDOC_FreeArrayMem(const void *mem)
 	rdctype::array<char>::deallocate(mem);
 }
 
+extern "C" RENDERDOC_API
+void *RENDERDOC_CC RENDERDOC_AllocArrayMem(size_t sz)
+{
+	return rdctype::array<char>::allocate(sz);
+}
+
 extern "C" RENDERDOC_API
 void RENDERDOC_CC RENDERDOC_InitRemoteAccess(uint32_t *ident)
 {