e2cace52d5
The includes that are not used can be removed. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
41 lines
949 B
C++
41 lines
949 B
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
/*
|
|
* Copyright (C) 2020, Raspberry Pi Ltd
|
|
*
|
|
* Helper class for dma-buf allocations.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libcamera/base/flags.h>
|
|
#include <libcamera/base/unique_fd.h>
|
|
|
|
namespace libcamera {
|
|
|
|
class DmaBufAllocator
|
|
{
|
|
public:
|
|
enum class DmaBufAllocatorFlag {
|
|
CmaHeap = 1 << 0,
|
|
SystemHeap = 1 << 1,
|
|
UDmaBuf = 1 << 2,
|
|
};
|
|
|
|
using DmaBufAllocatorFlags = Flags<DmaBufAllocatorFlag>;
|
|
|
|
DmaBufAllocator(DmaBufAllocatorFlags flags = DmaBufAllocatorFlag::CmaHeap);
|
|
~DmaBufAllocator();
|
|
bool isValid() const { return providerHandle_.isValid(); }
|
|
UniqueFD alloc(const char *name, std::size_t size);
|
|
|
|
private:
|
|
UniqueFD allocFromHeap(const char *name, std::size_t size);
|
|
UniqueFD allocFromUDmaBuf(const char *name, std::size_t size);
|
|
UniqueFD providerHandle_;
|
|
DmaBufAllocatorFlag type_;
|
|
};
|
|
|
|
LIBCAMERA_FLAGS_ENABLE_OPERATORS(DmaBufAllocator::DmaBufAllocatorFlag)
|
|
|
|
} /* namespace libcamera */
|