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https://github.com/openharmony/drivers_peripheral.git
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wwx1074746
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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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 HOS_BUFFER_ALLOCATOR_UTILS_H
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#define HOS_BUFFER_ALLOCATOR_UTILS_H
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#include "camera.h"
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#include "ibuffer.h"
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#include "ibuffer_allocator.h"
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namespace OHOS::Camera {
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class BufferAllocatorUtils {
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public:
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// get buffer allocator
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static std::shared_ptr<IBufferAllocator> GetAllocator(std::shared_ptr<IBuffer>& buffer);
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// allocate buffer from source.
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static std::shared_ptr<IBuffer> AllocBuffer(const int32_t source,
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const uint32_t width,
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const uint32_t height,
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const uint64_t usage,
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const uint32_t format);
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// free the buffer
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static RetCode FreeBuffer(std::shared_ptr<IBuffer>& buffer);
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// Map the buffer
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static RetCode MapBuffer(std::shared_ptr<IBuffer>& buffer);
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// Unmap the buffer
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static RetCode UnmapBuffer(std::shared_ptr<IBuffer>& buffer);
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// flush the buffer
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static RetCode FlushCache(std::shared_ptr<IBuffer>& buffer);
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// invalidate the cache, update cache from memory
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static RetCode InvalidateCache(std::shared_ptr<IBuffer>& buffer);
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private:
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static std::shared_ptr<IBufferAllocator> GetBufferAllocator(const int32_t source);
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};
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} // namespace OHOS::Camera
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#endif
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