id_manager.h revision 5821806d5e7f356e8fa4b058a389a808ea183019
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/hash_tables.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "gpu/command_buffer/service/gl_utils.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "gpu/gpu_export.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gpu { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace gles2 { 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// This class maps one set of ids to another. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// NOTE: To support shared resources an instance of this class will 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// need to be shared by multiple GLES2Decoders. 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class GPU_EXPORT IdManager { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) IdManager(); 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~IdManager(); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Maps a client_id to a service_id. Return false if the client_id or 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // service_id are already mapped to something else. 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool AddMapping(GLuint client_id, GLuint service_id); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Unmaps a pair of ids. Returns false if the pair were not previously mapped. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool RemoveMapping(GLuint client_id, GLuint service_id); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Gets the corresponding service_id for the given client_id. 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns false if there is no corresponding service_id. 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool GetServiceId(GLuint client_id, GLuint* service_id); 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Gets the corresponding client_id for the given service_id. 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Returns false if there is no corresponding client_id. 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool GetClientId(GLuint service_id, GLuint* client_id); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) typedef base::hash_map<GLuint, GLuint> MapType; 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) MapType id_map_; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(IdManager); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gles2 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace gpu 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // GPU_COMMAND_BUFFER_SERVICE_ID_MANAGER_H_ 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 52