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