76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
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// ======================================================================== //
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// Copyright 2009-2019 Intel Corporation //
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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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#pragma once
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#include "common.h"
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#include "device.h"
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namespace oidn {
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class Device;
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// Buffer which may or may not own its data
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class Buffer : public RefCount
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{
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private:
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char* ptr;
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size_t byteSize;
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bool shared;
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Ref<Device> device;
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public:
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__forceinline Buffer(const Ref<Device>& device, size_t size)
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: ptr((char*)alignedMalloc(size, 64)),
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byteSize(size),
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shared(false),
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device(device) {}
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__forceinline Buffer(const Ref<Device>& device, void* data, size_t size)
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: ptr((char*)data),
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byteSize(size),
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shared(true),
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device(device)
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{
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if (data == nullptr)
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throw Exception(Error::InvalidArgument, "buffer pointer null");
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}
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__forceinline ~Buffer()
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{
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if (!shared)
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alignedFree(ptr);
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}
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__forceinline char* data() { return ptr; }
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__forceinline const char* data() const { return ptr; }
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__forceinline size_t size() const { return byteSize; }
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void* map(size_t offset, size_t size)
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{
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if (offset + size > byteSize)
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throw Exception(Error::InvalidArgument, "buffer region out of range");
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return ptr + offset;
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}
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void unmap(void* mappedPtr) {}
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Device* getDevice() { return device.get(); }
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};
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} // namespace oidn
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