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/*
* Copyright (C) 2017 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 CAMERA_COMMON_1_0_HANDLEIMPORTED_H
#define CAMERA_COMMON_1_0_HANDLEIMPORTED_H
#include <android/hardware/graphics/mapper/2.0/IMapper.h>
#include <android/hardware/graphics/mapper/3.0/IMapper.h>
#include <android/hardware/graphics/mapper/4.0/IMapper.h>
#include <cutils/native_handle.h>
#include <utils/Mutex.h>
using android::hardware::graphics::mapper::V2_0::IMapper;
using android::hardware::graphics::mapper::V2_0::YCbCrLayout;
namespace android {
namespace hardware {
namespace camera {
namespace common {
namespace V1_0 {
namespace helper {
// Borrowed from graphics HAL. Use this until gralloc mapper HAL is working
class HandleImporter {
public:
HandleImporter();
// In IComposer, any buffer_handle_t is owned by the caller and we need to
// make a clone for hwcomposer2. We also need to translate empty handle
// to nullptr. This function does that, in-place.
bool importBuffer(buffer_handle_t& handle);
void freeBuffer(buffer_handle_t handle);
bool importFence(const native_handle_t* handle, int& fd) const;
void closeFence(int fd) const;
// Locks 1-D buffer. Assumes caller has waited for acquire fences.
void* lock(buffer_handle_t& buf, uint64_t cpuUsage, size_t size);
// Locks 2-D buffer. Assumes caller has waited for acquire fences.
void* lock(buffer_handle_t& buf, uint64_t cpuUsage, const IMapper::Rect& accessRegion);
// Assumes caller has waited for acquire fences.
YCbCrLayout lockYCbCr(buffer_handle_t& buf, uint64_t cpuUsage,
const IMapper::Rect& accessRegion);
// Query the stride of the first plane in bytes.
status_t getMonoPlanarStrideBytes(buffer_handle_t& buf, uint32_t* stride /*out*/);
int unlock(buffer_handle_t& buf); // returns release fence
// Query Gralloc4 metadata
bool isSmpte2086Present(const buffer_handle_t& buf);
bool isSmpte2094_10Present(const buffer_handle_t& buf);
bool isSmpte2094_40Present(const buffer_handle_t& buf);
private:
void initializeLocked();
void cleanup();
template<class M, class E>
bool importBufferInternal(const sp<M> mapper, buffer_handle_t& handle);
template<class M, class E>
YCbCrLayout lockYCbCrInternal(const sp<M> mapper, buffer_handle_t& buf, uint64_t cpuUsage,
const IMapper::Rect& accessRegion);
template<class M, class E>
int unlockInternal(const sp<M> mapper, buffer_handle_t& buf);
Mutex mLock;
bool mInitialized;
sp<IMapper> mMapperV2;
sp<graphics::mapper::V3_0::IMapper> mMapperV3;
sp<graphics::mapper::V4_0::IMapper> mMapperV4;
};
} // namespace helper
} // namespace V1_0
} // namespace common
} // namespace camera
} // namespace hardware
} // namespace android
#endif // CAMERA_COMMON_1_0_HANDLEIMPORTED_H
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