Adds texture tracking.

I need to add a bunch more unit tests for the TextureManager
but this CL is getting large so if you don't mind I'll
do that in the next CL.

I still need to use the texture tracking at draw time but 
that's going to  require uniform tracking! UGH!

Also breaks out a bunch of the tracking classes into their own files.

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/605018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@39153 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 50 insertions, 0 deletions

diff --git a/gpu/command_buffer/service/id_manager.h b/gpu/command_buffer/service/id_manager.h
new file mode 100644
index 0000000..5c5f603
--- /dev/null
+++ b/gpu/command_buffer/service/id_manager.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2010 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_ID_MANAGER_H_
+#define GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_
+
+#include <map>
+#include "base/basictypes.h"
+#include "gpu/command_buffer/service/gl_utils.h"
+
+namespace gpu {
+namespace gles2 {
+
+// This class maps one set of ids to another.
+//
+// NOTE: To support shared resources an instance of this class will
+// need to be shared by multiple GLES2Decoders.
+class IdManager {
+ public:
+  IdManager() { };
+
+  // Maps a client_id to a service_id. Return false if the client_id or
+  // service_id are already mapped to something else.
+  bool AddMapping(GLuint client_id, GLuint service_id);
+
+  // Unmaps a pair of ids. Returns false if the pair were not previously mapped.
+  bool RemoveMapping(GLuint client_id, GLuint service_id);
+
+  // Gets the corresponding service_id for the given client_id.
+  // Returns false if there is no corresponding service_id.
+  bool GetServiceId(GLuint client_id, GLuint* service_id);
+
+  // Gets the corresponding client_id for the given service_id.
+  // Returns false if there is no corresponding client_id.
+  bool GetClientId(GLuint service_id, GLuint* client_id);
+
+ private:
+  // TODO(gman): Replace with faster implementation.
+  typedef std::map<GLuint, GLuint> MapType;
+  MapType id_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(IdManager);
+};
+
+}  // namespace gles2
+}  // namespace gpu
+
+#endif  // GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_
+