LookingGlass/client/KVMGFXHeader.h

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2017-10-19 04:15:49 +00:00
#define KVMGFX_HEADER_MAGIC "[[KVMGFXHeader]]"
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_YUV420P , // YUV420 12bpp
FRAME_TYPE_ARGB10 , // rgb 10 bit packed, a2 b10 r10
FRAME_TYPE_XOR , // xor of the previous frame: R, G, B
FRAME_TYPE_MAX , // sentinel value
} FrameType;
typedef enum FrameComp
{
FRAME_COMP_NONE , // no compression
FRAME_COMP_BLACK_RLE , // basic run length encoding of black pixels for XOR mode
FRAME_COMP_MAX , // sentinel valule
} FrameComp;
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
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FrameType frameType; // the frame type
FrameComp compType; // frame compression mode
uint32_t width; // the width
uint32_t height; // the height
uint32_t stride; // the row stride
uint64_t frames; // total frame count
uint64_t clientFrame; // current client frame
uint32_t dataLen; // total lengh of the data after this header
};
#pragma pack(push,1)
struct RLEHeader
{
uint8_t magic[3];
uint16_t length;
};
#pragma pack(pop)