[XAM/User] Added descriptions and labels for achievements

Disclaimer: On old dash it causes memleak (slight),
newer dashboards allocates them only once which is solution for that.

Ps. If anyone have easy solution please implement it. Cheers

src/xenia/kernel/xam/xam_user.cc

@@ -610,19 +610,6 @@ dword_result_t XamUserCreateAchievementEnumerator(dword_t title_id,
     return X_ERROR_SUCCESS;
   }
 
-  static uint32_t placeholder = 0;
-
-  if (!placeholder) {
-    const wchar_t* placeholder_val = L"<placeholder>";
-
-    placeholder = kernel_memory()->SystemHeapAlloc(
-        ((uint32_t)wcslen(placeholder_val) + 1) * 2);
-    auto* place_addr = kernel_memory()->TranslateVirtual<wchar_t*>(placeholder);
-
-    memset(place_addr, 0, (wcslen(placeholder_val) + 1) * 2);
-    xe::copy_and_swap(place_addr, placeholder_val, wcslen(placeholder_val));
-  }
-
   std::vector<xdbf::Achievement> achievements;
   game_gpd->GetAchievements(&achievements);
 
@@ -638,9 +625,14 @@ dword_result_t XamUserCreateAchievementEnumerator(dword_t title_id,
     // very bad...
 
     // maybe we could alloc these in guest when the title GPD is first loaded?
-    details->label_ptr = placeholder;
-    details->description_ptr = placeholder;
-    details->unachieved_ptr = placeholder;
+    // Only the 1888 dashboard reallocates them every time
+    // Newer dashes allocates this only once
+    details->label_ptr =
+        kernel_memory()->AllocSpaceForWStringInSystemHeap(ach.label);
+    details->description_ptr =
+        kernel_memory()->AllocSpaceForWStringInSystemHeap(ach.description);
+    details->unachieved_ptr =
+        kernel_memory()->AllocSpaceForWStringInSystemHeap(ach.unachieved_desc);
   }
 
   XELOGD("XamUserCreateAchievementEnumerator: added %d items to enumerator",

src/xenia/memory.cc

@@ -1736,4 +1736,14 @@ uint32_t PhysicalHeap::GetPhysicalAddress(uint32_t address) const {
   return address;
 }
 
+uint32_t Memory::AllocSpaceForWStringInSystemHeap(std::wstring phrase) {
+  uint32_t address = SystemHeapAlloc((uint32_t)phrase.size());
+
+  auto* place_addr = TranslateVirtual<wchar_t*>(address);
+
+  memset(place_addr, 0, (uint32_t)phrase.size());
+  xe::copy_and_swap(place_addr, phrase.c_str(), (uint32_t)phrase.size());
+  return address;
+}
+
 }  // namespace xe

src/xenia/memory.h

@@ -429,6 +429,9 @@ class Memory {
   // Gets the physical base heap.
   VirtualHeap* GetPhysicalHeap();
 
+  // Allocate space for wstring in memory and returns its address
+  uint32_t AllocSpaceForWStringInSystemHeap(std::wstring phrase);
+
   // Dumps a map of all allocated memory to the log.
   void DumpMap();