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52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_
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#define GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_
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#include "base/basictypes.h"
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#include "base/containers/hash_tables.h"
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#include "gpu/command_buffer/service/gl_utils.h"
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#include "gpu/gpu_export.h"
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namespace gpu {
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namespace gles2 {
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// This class maps one set of ids to another.
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//
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// NOTE: To support shared resources an instance of this class will
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// need to be shared by multiple GLES2Decoders.
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class GPU_EXPORT IdManager {
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public:
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IdManager();
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~IdManager();
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// Maps a client_id to a service_id. Return false if the client_id or
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// service_id are already mapped to something else.
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bool AddMapping(GLuint client_id, GLuint service_id);
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// Unmaps a pair of ids. Returns false if the pair were not previously mapped.
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bool RemoveMapping(GLuint client_id, GLuint service_id);
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// Gets the corresponding service_id for the given client_id.
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// Returns false if there is no corresponding service_id.
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bool GetServiceId(GLuint client_id, GLuint* service_id);
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// Gets the corresponding client_id for the given service_id.
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// Returns false if there is no corresponding client_id.
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bool GetClientId(GLuint service_id, GLuint* client_id);
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private:
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typedef base::hash_map<GLuint, GLuint> MapType;
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MapType id_map_;
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DISALLOW_COPY_AND_ASSIGN(IdManager);
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};
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} // namespace gles2
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} // namespace gpu
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#endif // GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_
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