1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 6 #define GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/containers/hash_tables.h" 10 #include "gpu/command_buffer/service/gl_utils.h" 11 #include "gpu/gpu_export.h" 12 13 namespace gpu { 14 namespace gles2 { 15 16 // This class maps one set of ids to another. 17 // 18 // NOTE: To support shared resources an instance of this class will 19 // need to be shared by multiple GLES2Decoders. 20 class GPU_EXPORT IdManager { 21 public: 22 IdManager(); 23 ~IdManager(); 24 25 // Maps a client_id to a service_id. Return false if the client_id or 26 // service_id are already mapped to something else. 27 bool AddMapping(GLuint client_id, GLuint service_id); 28 29 // Unmaps a pair of ids. Returns false if the pair were not previously mapped. 30 bool RemoveMapping(GLuint client_id, GLuint service_id); 31 32 // Gets the corresponding service_id for the given client_id. 33 // Returns false if there is no corresponding service_id. 34 bool GetServiceId(GLuint client_id, GLuint* service_id); 35 36 // Gets the corresponding client_id for the given service_id. 37 // Returns false if there is no corresponding client_id. 38 bool GetClientId(GLuint service_id, GLuint* client_id); 39 40 private: 41 typedef base::hash_map<GLuint, GLuint> MapType; 42 MapType id_map_; 43 44 DISALLOW_COPY_AND_ASSIGN(IdManager); 45 }; 46 47 } // namespace gles2 48 } // namespace gpu 49 50 #endif // GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 51 52
