Files
LookingGlass/idd/LGCommon/ClipboardRing.h
2026-08-14 16:09:08 +10:00

65 lines
1.9 KiB
C

/**
* Looking Glass
* Copyright © 2017-2026 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#pragma once
#include "common/KVMFRClipboard.h"
#include <stddef.h>
#include <stdint.h>
static constexpr uint32_t LG_CLIPBOARD_MAPPING_MAGIC = 0x4c474342U;
static constexpr uint32_t LG_CLIPBOARD_MAPPING_VERSION = 2U;
struct ClipboardRingSlot
{
KVMFRClipboardSlotHeader header;
uint8_t data[KVMFR_CLIPBOARD_DATA_BYTES];
};
struct alignas(64) ClipboardRing
{
uint32_t produced;
uint32_t consumed;
uint32_t reserved[14];
ClipboardRingSlot slots[KVMFR_CLIPBOARD_SLOT_COUNT];
};
struct alignas(64) ClipboardMapping
{
uint32_t magic;
uint32_t version;
uint32_t size;
uint32_t slotBytes;
uint32_t slotCount;
uint32_t reserved0;
uint64_t epoch;
uint8_t reserved1[32];
ClipboardRing helperToIdd;
ClipboardRing iddToHelper;
};
static_assert(sizeof(KVMFRClipboardSlotHeader) == 64,
"clipboard slot header alignment changed");
static_assert(offsetof(ClipboardMapping, helperToIdd) == 64,
"clipboard mapping header layout changed");
static_assert(offsetof(ClipboardMapping, iddToHelper) % 64 == 0,
"clipboard rings must remain cache-line aligned");