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