LookingGlass/common/KVMGFXHeader.h
2017-12-12 03:59:55 +11:00

55 lines
1.8 KiB
C

#pragma once
/*
KVMGFX Client - A KVM Client for VGA Passthrough
Copyright (C) 2017 Geoffrey McRae <geoff@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
*/
#include <stdint.h>
#define KVMGFX_HEADER_MAGIC "[[KVMGFXHeader]]"
#define KVMGFX_HEADER_VERSION 3
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 KVMGFXHeader
{
char magic[sizeof(KVMGFX_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
};
#pragma pack(push,1)
struct RLEHeader
{
uint8_t magic[3];
uint16_t length;
};
#pragma pack(pop)