1 files changed, 67 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/Error.cpp b/gfx/angle/checkout/src/libANGLE/Error.cpp
new file mode 100644
index 0000000000..977e8d66e0
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/Error.cpp
@@ -0,0 +1,67 @@
+//
+// Copyright 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.
+//
+
+// Error.cpp: Implements the egl::Error and gl::Error classes which encapsulate API errors
+// and optional error messages.
+
+#include "libANGLE/Error.h"
+
+#include "common/angleutils.h"
+#include "common/debug.h"
+#include "common/utilities.h"
+
+#include <cstdarg>
+
+namespace
+{
+std::unique_ptr<std::string> EmplaceErrorString(std::string &&message)
+{
+    return message.empty() ? std::unique_ptr<std::string>()
+                           : std::unique_ptr<std::string>(new std::string(std::move(message)));
+}
+}  // anonymous namespace
+
+namespace egl
+{
+
+Error::Error(EGLint errorCode, std::string &&message)
+    : mCode(errorCode), mID(errorCode), mMessage(EmplaceErrorString(std::move(message)))
+{}
+
+Error::Error(EGLint errorCode, EGLint id, std::string &&message)
+    : mCode(errorCode), mID(id), mMessage(EmplaceErrorString(std::move(message)))
+{}
+
+void Error::createMessageString() const
+{
+    if (!mMessage)
+    {
+        mMessage.reset(new std::string(GetGenericErrorMessage(mCode)));
+    }
+}
+
+const std::string &Error::getMessage() const
+{
+    createMessageString();
+    return *mMessage;
+}
+
+std::ostream &operator<<(std::ostream &os, const Error &err)
+{
+    return gl::FmtHex(os, err.getCode());
+}
+}  // namespace egl
+
+namespace angle
+{
+egl::Error ResultToEGL(Result result)
+{
+    if (result == Result::Continue)
+        return egl::NoError();
+
+    return egl::Error(EGL_BAD_ACCESS);
+}
+}  // namespace angle