72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
/*
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* Copyright (C) 2007 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 ANDROID_UI_BUFFER_MAPPER_H
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#define ANDROID_UI_BUFFER_MAPPER_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/CallStack.h>
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#include <utils/threads.h>
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#include <utils/Singleton.h>
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#include <utils/KeyedVector.h>
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#include <hardware/gralloc.h>
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struct gralloc_module_t;
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namespace android {
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// ---------------------------------------------------------------------------
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class Rect;
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class BufferMapper : public Singleton<BufferMapper>
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{
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public:
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static inline BufferMapper& get() { return getInstance(); }
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status_t map(buffer_handle_t handle, void** addr);
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status_t unmap(buffer_handle_t handle);
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status_t lock(buffer_handle_t handle, int usage, const Rect& bounds);
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status_t unlock(buffer_handle_t handle);
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// dumps information about the mapping of this handle
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void dump(buffer_handle_t handle);
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private:
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friend class Singleton<BufferMapper>;
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BufferMapper();
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mutable Mutex mLock;
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gralloc_module_t const *mAllocMod;
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struct map_info_t {
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int count;
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KeyedVector<CallStack, int> callstacks;
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};
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KeyedVector<buffer_handle_t, map_info_t> mMapInfo;
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void logMapLocked(buffer_handle_t handle);
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void logUnmapLocked(buffer_handle_t handle);
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_UI_BUFFER_MAPPER_H
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