startup fixes

src/gpu/shader.cpp

@@ -674,12 +674,22 @@ String ShaderData::Patch(String const &code, ShaderType type)
 
         for (char const * const *rep = fast_replaces; rep[0]; rep += 2)
         {
-            char *match;
+			size_t l0 = strlen(rep[0]);
+			size_t l1 = strlen(rep[1]);
+
+			if (l1 > l0)
+			{
+				int padding = patched_code.count_occurence(rep[0]) * (l1 - l0);
+				if (padding > 0)
+				{
+					patched_code.resize(patched_code.count() + padding);
+					end = patched_code.C() + patched_code.count() + 1 - padding;
+				}
+			}
+
+			char *match;
             while ((match = strstr(patched_code.C(), rep[0])))
             {
-                size_t l0 = strlen(rep[0]);
-                size_t l1 = strlen(rep[1]);
-
                 if (l1 > l0)
                     memmove(match + l1, match + l0, (end - match) - l0);
                 memcpy(match, rep[1], l1);

src/lol/base/string.h

@@ -170,6 +170,19 @@ public:
         return -1;
     }
 
+	int count_occurence(String const& token) const { return last_index_of(token.C()); }
+	int count_occurence(char const* token) const
+	{
+		int count = 0;
+		const char *match = strstr(C(), token);
+		while (match)
+		{
+			count++;
+			match = strstr(match + 1, token);
+		}
+		return count;
+	}
+
     int replace(char const old_token, char const new_token,
                 bool all_occurrences = false)
     {

src/lolimgui.cpp

@@ -145,7 +145,11 @@ io.AddInputCharacter((unsigned short)c);
 
 void LolImGui::Shutdown()
 {
-    Ticker::Unref(g_lolimgui);
+	if (g_lolimgui)
+	{
+		Ticker::Unref(g_lolimgui);
+		g_lolimgui = nullptr;
+	}
 
     ImGui::Shutdown();
 }