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99 lines
2.9 KiB
99 lines
2.9 KiB
/*
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* Copyright (C) 2016 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 DIRECTCHANNEL_H_
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#define DIRECTCHANNEL_H_
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#include "ring.h"
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#include <cutils/native_handle.h>
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#include <hardware/gralloc.h>
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#include <hardware/gralloc1.h>
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#include <hardware/sensors.h>
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#include <utils/Singleton.h>
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#include <memory>
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namespace android {
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class DirectChannelBase {
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public:
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DirectChannelBase() : mError(NO_INIT), mSize(0), mBase(nullptr) { }
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virtual ~DirectChannelBase() {}
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virtual bool memoryMatches(const struct sensors_direct_mem_t *mem) const = 0;
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bool isValid();
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int getError();
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void write(const sensors_event_t * ev);
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protected:
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int mError;
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std::unique_ptr<LockfreeBuffer> mBuffer;
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size_t mSize;
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void* mBase;
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};
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class AshmemDirectChannel : public DirectChannelBase {
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public:
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AshmemDirectChannel(const struct sensors_direct_mem_t *mem);
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~AshmemDirectChannel() override;
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bool memoryMatches(const struct sensors_direct_mem_t *mem) const override;
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private:
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int mAshmemFd;
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};
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class GrallocHalWrapper : public Singleton<GrallocHalWrapper> {
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public:
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int registerBuffer(const native_handle_t *handle);
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int unregisterBuffer(const native_handle_t *handle);
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int lock(const native_handle_t *handle, int usage, int l, int t, int w, int h, void **vaddr);
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int unlock(const native_handle_t *handle);
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bool isSameMemory(const native_handle_t *h1, const native_handle_t *h2);
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bool unregisterImplyDelete() { return mUnregisterImplyDelete; }
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private:
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friend class Singleton<GrallocHalWrapper>;
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GrallocHalWrapper();
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~GrallocHalWrapper();
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static int mapGralloc1Error(int grallocError);
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int mError;
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int mVersion;
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gralloc_module_t *mGrallocModule;
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// gralloc
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alloc_device_t *mAllocDevice;
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// gralloc1
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gralloc1_device_t *mGralloc1Device;
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GRALLOC1_PFN_RETAIN mPfnRetain;
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GRALLOC1_PFN_RELEASE mPfnRelease;
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GRALLOC1_PFN_LOCK mPfnLock;
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GRALLOC1_PFN_UNLOCK mPfnUnlock;
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GRALLOC1_PFN_GET_BACKING_STORE mPfnGetBackingStore;
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bool mUnregisterImplyDelete;
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};
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class GrallocDirectChannel : public DirectChannelBase {
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public:
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GrallocDirectChannel(const struct sensors_direct_mem_t *mem);
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~GrallocDirectChannel() override;
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bool memoryMatches(const struct sensors_direct_mem_t *mem) const override;
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private:
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native_handle_t *mNativeHandle;
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};
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} // namespace android
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#endif // DIRECTCHANNEL_H_
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