1 /* 2 * Copyright (C) 2008 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 GR_H_ 18 #define GR_H_ 19 20 #include <stdint.h> 21 #include <sys/user.h> 22 #include <limits.h> 23 #include <sys/cdefs.h> 24 #include <hardware/gralloc.h> 25 #include <pthread.h> 26 #include <errno.h> 27 28 #include <cutils/native_handle.h> 29 30 /*****************************************************************************/ 31 32 struct private_module_t; 33 struct private_handle_t; 34 35 inline size_t roundUpToPageSize(size_t x) { 36 return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1); 37 } 38 39 int mapFrameBufferLocked(struct private_module_t* module); 40 int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd); 41 int mapBuffer(gralloc_module_t const* module, private_handle_t* hnd); 42 43 /*****************************************************************************/ 44 45 class Locker { 46 pthread_mutex_t mutex; 47 public: 48 class Autolock { 49 Locker& locker; 50 public: 51 inline Autolock(Locker& locker) : locker(locker) { locker.lock(); } 52 inline ~Autolock() { locker.unlock(); } 53 }; 54 inline Locker() { pthread_mutex_init(&mutex, 0); } 55 inline ~Locker() { pthread_mutex_destroy(&mutex); } 56 inline void lock() { pthread_mutex_lock(&mutex); } 57 inline void unlock() { pthread_mutex_unlock(&mutex); } 58 }; 59 60 #endif /* GR_H_ */ 61
