1 files changed, 179 insertions, 0 deletions
diff --git a/gfx/angle/src/common/debug.cpp b/gfx/angle/src/common/debug.cpp
new file mode 100755
index 000000000..f64d9322f
--- /dev/null
+++ b/gfx/angle/src/common/debug.cpp
@@ -0,0 +1,179 @@
+//
+// Copyright (c) 2002-2010 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.
+//
+
+// debug.cpp: Debugging utilities.
+
+#include "common/debug.h"
+
+#include <stdarg.h>
+
+#include <cstdio>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+#include "common/angleutils.h"
+#include "common/platform.h"
+#include "common/Optional.h"
+
+namespace gl
+{
+
+namespace
+{
+
+class FormattedString final : angle::NonCopyable
+{
+  public:
+    FormattedString(const char *format, va_list vararg) : mFormat(format)
+    {
+        va_copy(mVarArg, vararg);
+    }
+
+    const char *c_str() { return str().c_str(); }
+
+    const std::string &str()
+    {
+        if (!mMessage.valid())
+        {
+            mMessage = FormatString(mFormat, mVarArg);
+        }
+        return mMessage.value();
+    }
+
+    size_t length()
+    {
+        c_str();
+        return mMessage.value().length();
+    }
+
+  private:
+    const char *mFormat;
+    va_list mVarArg;
+    Optional<std::string> mMessage;
+};
+enum DebugTraceOutputType
+{
+   DebugTraceOutputTypeNone,
+   DebugTraceOutputTypeSetMarker,
+   DebugTraceOutputTypeBeginEvent
+};
+
+DebugAnnotator *g_debugAnnotator = nullptr;
+
+void output(bool traceInDebugOnly, MessageType messageType, DebugTraceOutputType outputType,
+            const char *format, va_list vararg)
+{
+    if (DebugAnnotationsActive())
+    {
+        static std::vector<char> buffer(512);
+        size_t len = FormatStringIntoVector(format, vararg, buffer);
+        std::wstring formattedWideMessage(buffer.begin(), buffer.begin() + len);
+
+        ASSERT(g_debugAnnotator != nullptr);
+        switch (outputType)
+        {
+          case DebugTraceOutputTypeNone:
+            break;
+          case DebugTraceOutputTypeBeginEvent:
+            g_debugAnnotator->beginEvent(formattedWideMessage.c_str());
+            break;
+          case DebugTraceOutputTypeSetMarker:
+            g_debugAnnotator->setMarker(formattedWideMessage.c_str());
+            break;
+        }
+    }
+
+    FormattedString formattedMessage(format, vararg);
+
+    if (messageType == MESSAGE_ERR)
+    {
+        std::cerr << formattedMessage.c_str();
+#if !defined(NDEBUG) && defined(_MSC_VER)
+        OutputDebugStringA(formattedMessage.c_str());
+#endif  // !defined(NDEBUG) && defined(_MSC_VER)
+    }
+
+#if defined(ANGLE_ENABLE_DEBUG_TRACE)
+#if defined(NDEBUG)
+    if (traceInDebugOnly)
+    {
+        return;
+    }
+#endif  // NDEBUG
+    static std::ofstream file(TRACE_OUTPUT_FILE, std::ofstream::app);
+    if (file)
+    {
+        file.write(formattedMessage.c_str(), formattedMessage.length());
+        file.flush();
+    }
+
+#if defined(ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER)
+    OutputDebugStringA(formattedMessage.c_str());
+#endif  // ANGLE_ENABLE_DEBUG_TRACE_TO_DEBUGGER
+
+#endif  // ANGLE_ENABLE_DEBUG_TRACE
+}
+
+} // namespace
+
+bool DebugAnnotationsActive()
+{
+#if defined(ANGLE_ENABLE_DEBUG_ANNOTATIONS)
+    return g_debugAnnotator != nullptr && g_debugAnnotator->getStatus();
+#else
+    return false;
+#endif
+}
+
+void InitializeDebugAnnotations(DebugAnnotator *debugAnnotator)
+{
+    UninitializeDebugAnnotations();
+    g_debugAnnotator = debugAnnotator;
+}
+
+void UninitializeDebugAnnotations()
+{
+    // Pointer is not managed.
+    g_debugAnnotator = nullptr;
+}
+
+void trace(bool traceInDebugOnly, MessageType messageType, const char *format, ...)
+{
+    va_list vararg;
+    va_start(vararg, format);
+    output(traceInDebugOnly, messageType, DebugTraceOutputTypeSetMarker, format, vararg);
+    va_end(vararg);
+}
+
+ScopedPerfEventHelper::ScopedPerfEventHelper(const char* format, ...)
+{
+#if !defined(ANGLE_ENABLE_DEBUG_TRACE)
+    if (!DebugAnnotationsActive())
+    {
+        return;
+    }
+#endif // !ANGLE_ENABLE_DEBUG_TRACE
+    va_list vararg;
+    va_start(vararg, format);
+    output(true, MESSAGE_EVENT, DebugTraceOutputTypeBeginEvent, format, vararg);
+    va_end(vararg);
+}
+
+ScopedPerfEventHelper::~ScopedPerfEventHelper()
+{
+    if (DebugAnnotationsActive())
+    {
+        g_debugAnnotator->endEvent();
+    }
+}
+
+std::ostream &DummyStream()
+{
+    return std::cout;
+}
+
+}  // namespace gl