/* * Copyright (C) 2008 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef GR_H_ #define GR_H_ #include <stdint.h> #include <sys/user.h> #include <limits.h> #include <sys/cdefs.h> #include <hardware/gralloc.h> #include <pthread.h> #include <errno.h> #include <cutils/native_handle.h> /*****************************************************************************/ struct private_module_t; struct private_handle_t; inline size_t roundUpToPageSize(size_t x) { return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1); } int mapFrameBufferLocked(struct private_module_t* module); int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd); int mapBuffer(gralloc_module_t const* module, private_handle_t* hnd); /*****************************************************************************/ class Locker { pthread_mutex_t mutex; public: class Autolock { Locker& locker; public: inline Autolock(Locker& locker) : locker(locker) { locker.lock(); } inline ~Autolock() { locker.unlock(); } }; inline Locker() { pthread_mutex_init(&mutex, 0); } inline ~Locker() { pthread_mutex_destroy(&mutex); } inline void lock() { pthread_mutex_lock(&mutex); } inline void unlock() { pthread_mutex_unlock(&mutex); } }; #endif /* GR_H_ */