[build] make "common" a static library (part 1/2)

common/include/common/KVMFR.h

@@ -0,0 +1,90 @@
+/*
+Looking Glass - KVM FrameRelay (KVMFR)
+Copyright (C) 2017-2019 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 8
+
+typedef enum FrameType
+{
+  FRAME_TYPE_INVALID   ,
+  FRAME_TYPE_BGRA      , // BGRA interleaved: B,G,R,A 32bpp
+  FRAME_TYPE_RGBA      , // RGBA interleaved: R,G,B,A 32bpp
+  FRAME_TYPE_RGBA10    , // RGBA interleaved: R,G,B,A 10,10,10,2 bpp
+  FRAME_TYPE_YUV420    , // YUV420
+  FRAME_TYPE_MAX       , // sentinel value
+}
+FrameType;
+
+typedef enum CursorType
+{
+  CURSOR_TYPE_COLOR       ,
+  CURSOR_TYPE_MONOCHROME  ,
+  CURSOR_TYPE_MASKED_COLOR
+}
+CursorType;
+
+#define KVMFR_CURSOR_FLAG_UPDATE  1 // cursor update available
+#define KVMFR_CURSOR_FLAG_VISIBLE 2 // cursor is visible
+#define KVMFR_CURSOR_FLAG_SHAPE   4 // shape updated
+#define KVMFR_CURSOR_FLAG_POS     8 // position updated
+
+typedef struct KVMFRCursor
+{
+  uint8_t    flags;       // KVMFR_CURSOR_FLAGS
+  int16_t    x, y;        // cursor x & y position
+
+  uint32_t   version;     // shape version
+  CursorType type;        // shape buffer data type
+  uint32_t   width;       // width of the shape
+  uint32_t   height;      // height of the shape
+  uint32_t   pitch;       // row length in bytes of the shape
+  uint64_t   dataPos;     // offset to the shape data
+}
+KVMFRCursor;
+
+#define KVMFR_FRAME_FLAG_UPDATE 1 // frame update available
+
+typedef struct KVMFRFrame
+{
+  uint8_t     flags;       // KVMFR_FRAME_FLAGS
+  FrameType   type;        // the frame data type
+  uint32_t    width;       // the width
+  uint32_t    height;      // the height
+  uint32_t    stride;      // the row stride (zero if compressed data)
+  uint32_t    pitch;       // the row pitch  (stride in bytes or the compressed frame size)
+  uint64_t    dataPos;     // offset to the frame
+}
+KVMFRFrame;
+
+#define KVMFR_HEADER_FLAG_RESTART 1 // restart signal from client
+#define KVMFR_HEADER_FLAG_READY   2 // ready signal from client
+#define KVMFR_HEADER_FLAG_PAUSED  4 // capture has been paused by the host
+
+typedef struct KVMFRHeader
+{
+  char        magic[sizeof(KVMFR_HEADER_MAGIC)];
+  uint32_t    version;     // version of this structure
+  uint8_t     flags;       // KVMFR_HEADER_FLAGS
+  KVMFRFrame  frame;       // the frame information
+  KVMFRCursor cursor;      // the cursor information
+}
+KVMFRHeader;