diff options
Diffstat (limited to 'exynos4/hal/libgralloc_ump/gr.h')
-rw-r--r-- | exynos4/hal/libgralloc_ump/gr.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/exynos4/hal/libgralloc_ump/gr.h b/exynos4/hal/libgralloc_ump/gr.h new file mode 100644 index 0000000..3a43aa7 --- /dev/null +++ b/exynos4/hal/libgralloc_ump/gr.h @@ -0,0 +1,64 @@ +/* + * 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> +#ifdef HAVE_ANDROID_OS // just want PAGE_SIZE define +# include <asm/page.h> +#else +# include <sys/user.h> +#endif +#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_ */ |