Implement GL_EXT_debug_marker

gpu/command_buffer/common/debug_marker_manager.h

Index: gpu/command_buffer/common/debug_marker_manager.h
diff --git a/gpu/command_buffer/common/debug_marker_manager.h b/gpu/command_buffer/common/debug_marker_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7f83896e2775a486e3e56e1dd90d4fc435f5284
--- /dev/null
+++ b/gpu/command_buffer/common/debug_marker_manager.h
@@ -0,0 +1,62 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef GPU_COMMAND_BUFFER_SERVICE_DEBUG_MARKER_MANAGER_H_
+#define GPU_COMMAND_BUFFER_SERVICE_DEBUG_MARKER_MANAGER_H_
+
+#include <stack>
+#include <string>
+#include "../../gpu_export.h"
+
+namespace gpu {
+namespace gles2 {
+
+// Tracks debug marker.
+class GPU_EXPORT DebugMarkerManager {
+ public:
+   DebugMarkerManager();
+   ~DebugMarkerManager();
+
+  // Gets the current marker on the top group.
+  const std::string& GetMarker() const;
+  // Sets the current marker on the top group.
+  void SetMarker(const std::string& marker);
+  // Pushes a new group.
+  void PushGroup(const std::string& name);
+  // Removes the top group. This is safe to call even when stack is empty.
+  void PopGroup(void);
+
+ private:
+  // Info about Buffers currently in the system.
+  class Group {
+   public:
+    explicit Group(const std::string& name);
+    ~Group();
+
+    const std::string& name() const {
+      return name_;
+    }
+
+    void SetMarker(const std::string& marker);
+
+    const std::string& marker() const {
+      return marker_;
+    }
+
+   private:
+    std::string name_;
+    std::string marker_;
+  };
+
+  typedef std::stack<Group> GroupStack;
+
+  GroupStack group_stack_;
+  std::string empty_;

[apatrick_chromium, 2012/08/10 19:29:31]

Is this used for anything?

[greggman, 2012/08/11 00:17:30]

Done.

+};

[apatrick_chromium, 2012/08/10 19:29:31]

DISALLOW_COPY_AND_ASSIGN

[greggman, 2012/08/11 00:17:30]

can't use base here

+
+}  // namespace gles2
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_DEBUG_MARKER_MANAGER_H_
+