1 files changed, 37 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/common/angleutils.cpp b/src/3rdparty/angle/src/common/angleutils.cpp
new file mode 100644
index 0000000000..2673abf30a
--- /dev/null
+++ b/src/3rdparty/angle/src/common/angleutils.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "common/angleutils.h"
+
+#include <vector>
+
+std::string FormatString(const char *fmt, va_list vararg)
+{
+    static std::vector<char> buffer(512);
+
+    // Attempt to just print to the current buffer
+    int len = vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
+    if (len < 0 || static_cast<size_t>(len) >= buffer.size())
+    {
+        // Buffer was not large enough, calculate the required size and resize the buffer
+        len = vsnprintf(NULL, 0, fmt, vararg);
+        buffer.resize(len + 1);
+
+        // Print again
+        vsnprintf(&buffer[0], buffer.size(), fmt, vararg);
+    }
+
+    return std::string(buffer.data(), len);
+}
+
+std::string FormatString(const char *fmt, ...)
+{
+    va_list vararg;
+    va_start(vararg, fmt);
+    std::string result = FormatString(fmt, vararg);
+    va_end(vararg);
+    return result;
+}