looking-glass/common/KVMFR.h
2017-12-12 04:30:47 +11:00

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1.7 KiB
C

/*
Looking Glass - KVM FrameRelay (KVMFR)
Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
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 <stdint.h>
#define KVMFR_HEADER_MAGIC "[[KVMFR]]"
#define KVMFR_HEADER_VERSION 1
typedef enum FrameType
{
FRAME_TYPE_INVALID ,
FRAME_TYPE_ARGB , // ABGR interleaved: A,R,G,B 32bpp
FRAME_TYPE_RGB , // RGB interleaved : R,G,B 24bpp
FRAME_TYPE_MAX , // sentinel value
} FrameType;
struct KVMFRHeader
{
char magic[sizeof(KVMFR_HEADER_MAGIC)];
uint32_t version; // version of this structure
uint16_t hostID; // the host ivshmem client id
uint16_t guestID; // the guest ivshmem client id
FrameType frameType; // the frame type
uint32_t width; // the width
uint32_t height; // the height
uint32_t stride; // the row stride
int32_t mouseX; // the initial mouse X position
int32_t mouseY; // the initial mouse Y position
uint64_t dataLen; // total lengh of the data after this header
uint64_t dataPos; // offset to the frame
};