1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_UI_BUFFER_MAPPER_H 18 #define ANDROID_UI_BUFFER_MAPPER_H 19 20 #include <stdint.h> 21 #include <sys/types.h> 22 23 #include <utils/Singleton.h> 24 25 #include <hardware/gralloc.h> 26 27 28 struct gralloc_module_t; 29 30 namespace android { 31 32 // --------------------------------------------------------------------------- 33 34 class Rect; 35 36 class GraphicBufferMapper : public Singleton<GraphicBufferMapper> 37 { 38 public: get()39 static inline GraphicBufferMapper& get() { return getInstance(); } 40 41 status_t registerBuffer(buffer_handle_t handle); 42 43 status_t unregisterBuffer(buffer_handle_t handle); 44 45 status_t lock(buffer_handle_t handle, 46 int usage, const Rect& bounds, void** vaddr); 47 48 status_t lockYCbCr(buffer_handle_t handle, 49 int usage, const Rect& bounds, android_ycbcr *ycbcr); 50 51 status_t unlock(buffer_handle_t handle); 52 53 // dumps information about the mapping of this handle 54 void dump(buffer_handle_t handle); 55 56 private: 57 friend class Singleton<GraphicBufferMapper>; 58 GraphicBufferMapper(); 59 gralloc_module_t const *mAllocMod; 60 }; 61 62 // --------------------------------------------------------------------------- 63 64 }; // namespace android 65 66 #endif // ANDROID_UI_BUFFER_MAPPER_H 67 68