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-rw-r--r--xbmc/network/EventPacket.h227
1 files changed, 227 insertions, 0 deletions
diff --git a/xbmc/network/EventPacket.h b/xbmc/network/EventPacket.h
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+/*
+ * Copyright (C) 2005-2018 Team Kodi
+ * This file is part of Kodi - https://kodi.tv
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ * See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include <cstdint>
+#include <stdlib.h>
+#include <vector>
+
+namespace EVENTPACKET
+{
+ const int PACKET_SIZE = 1024;
+ const int HEADER_SIZE = 32;
+ const char HEADER_SIG[] = "XBMC";
+ const int HEADER_SIG_LENGTH = 4;
+
+ /************************************************************************/
+ /* */
+ /* - Generic packet structure (maximum 1024 bytes per packet) */
+ /* - Header is 32 bytes long, so 992 bytes available for payload */
+ /* - large payloads can be split into multiple packets using H4 and H5 */
+ /* H5 should contain total no. of packets in such a case */
+ /* - H6 contains length of P1, which is limited to 992 bytes */
+ /* - if H5 is 0 or 1, then H4 will be ignored (single packet msg) */
+ /* - H7 must be set to zeros for now */
+ /* */
+ /* ----------------------------- */
+ /* | -H1 Signature ("XBMC") | - 4 x CHAR 4B */
+ /* | -H2 Version (eg. 2.0) | - 2 x UNSIGNED CHAR 2B */
+ /* | -H3 PacketType | - 1 x UNSIGNED SHORT 2B */
+ /* | -H4 Sequence number | - 1 x UNSIGNED LONG 4B */
+ /* | -H5 No. of packets in msg | - 1 x UNSIGNED LONG 4B */
+ /* | -H6 Payload size | - 1 x UNSIGNED SHORT 2B */
+ /* | -H7 Client's unique token | - 1 x UNSIGNED LONG 4B */
+ /* | -H8 Reserved | - 10 x UNSIGNED CHAR 10B */
+ /* |---------------------------| */
+ /* | -P1 payload | - */
+ /* ----------------------------- */
+ /************************************************************************/
+
+ /************************************************************************
+ The payload format for each packet type is described below each
+ packet type.
+
+ Legend:
+ %s - null terminated ASCII string (strlen + '\0' bytes)
+ (empty string is represented as a single byte NULL '\0')
+ %c - single byte
+ %i - network byte ordered short unsigned integer (2 bytes)
+ %d - network byte ordered long unsigned integer (4 bytes)
+ XX - binary data prefixed with %d size
+ (can span multiple packets with <raw>)
+ raw - raw binary data
+ ************************************************************************/
+
+ enum LogoType
+ {
+ LT_NONE = 0x00,
+ LT_JPEG = 0x01,
+ LT_PNG = 0x02,
+ LT_GIF = 0x03
+ };
+
+ enum ButtonFlags
+ {
+ PTB_USE_NAME = 0x01,
+ PTB_DOWN = 0x02,
+ PTB_UP = 0x04,
+ PTB_USE_AMOUNT = 0x08,
+ PTB_QUEUE = 0x10,
+ PTB_NO_REPEAT = 0x20,
+ PTB_VKEY = 0x40,
+ PTB_AXIS = 0x80,
+ PTB_AXISSINGLE = 0x100,
+ PTB_UNICODE = 0x200
+ };
+
+ enum MouseFlags
+ {
+ PTM_ABSOLUTE = 0x01
+ /* PTM_RELATIVE = 0x02 */
+ };
+
+ enum ActionType
+ {
+ AT_EXEC_BUILTIN = 0x01,
+ AT_BUTTON = 0x02
+ };
+
+ enum PacketType
+ {
+ PT_HELO = 0x01,
+ /************************************************************************/
+ /* Payload format */
+ /* %s - device name (max 128 chars) */
+ /* %c - icontype ( 0=>NOICON, 1=>JPEG , 2=>PNG , 3=>GIF ) */
+ /* %s - my port ( 0=>not listening ) */
+ /* %d - reserved1 ( 0 ) */
+ /* %d - reserved2 ( 0 ) */
+ /* XX - imagedata ( can span multiple packets ) */
+ /************************************************************************/
+
+ PT_BYE = 0x02,
+ /************************************************************************/
+ /* no payload */
+ /************************************************************************/
+
+ PT_BUTTON = 0x03,
+ /************************************************************************/
+ /* Payload format */
+ /* %i - button code */
+ /* %i - flags 0x01 => use button map/name instead of code */
+ /* 0x02 => btn down */
+ /* 0x04 => btn up */
+ /* 0x08 => use amount */
+ /* 0x10 => queue event */
+ /* 0x20 => do not repeat */
+ /* 0x40 => virtual key */
+ /* 0x80 => axis key */
+ /* %i - amount ( 0 => 65k maps to -1 => 1 ) */
+ /* %s - device map (case sensitive and required if flags & 0x01) */
+ /* "KB" - Standard keyboard map */
+ /* "XG" - Xbox Gamepad */
+ /* "R1" - Xbox Remote */
+ /* "R2" - Xbox Universal Remote */
+ /* "LI:devicename" - valid LIRC device map where 'devicename' */
+ /* is the actual name of the LIRC device */
+ /* "JS<num>:joyname" - valid Joystick device map where */
+ /* 'joyname' is the name specified in */
+ /* the keymap. JS only supports button code */
+ /* and not button name currently (!0x01). */
+ /* %s - button name (required if flags & 0x01) */
+ /************************************************************************/
+
+ PT_MOUSE = 0x04,
+ /************************************************************************/
+ /* Payload format */
+ /* %c - flags */
+ /* - 0x01 absolute position */
+ /* %i - mousex (0-65535 => maps to screen width) */
+ /* %i - mousey (0-65535 => maps to screen height) */
+ /************************************************************************/
+
+ PT_PING = 0x05,
+ /************************************************************************/
+ /* no payload */
+ /************************************************************************/
+
+ PT_BROADCAST = 0x06,
+ /************************************************************************/
+ /* @todo implement */
+ /* Payload format: TODO */
+ /************************************************************************/
+
+ PT_NOTIFICATION = 0x07,
+ /************************************************************************/
+ /* Payload format: */
+ /* %s - caption */
+ /* %s - message */
+ /* %c - icontype ( 0=>NOICON, 1=>JPEG , 2=>PNG , 3=>GIF ) */
+ /* %d - reserved ( 0 ) */
+ /* XX - imagedata ( can span multiple packets ) */
+ /************************************************************************/
+
+ PT_BLOB = 0x08,
+ /************************************************************************/
+ /* Payload format */
+ /* raw - raw binary data */
+ /************************************************************************/
+
+ PT_LOG = 0x09,
+ /************************************************************************/
+ /* Payload format */
+ /* %c - log type */
+ /* %s - message */
+ /************************************************************************/
+ PT_ACTION = 0x0A,
+ /************************************************************************/
+ /* Payload format */
+ /* %c - action type */
+ /* %s - action message */
+ /************************************************************************/
+ PT_DEBUG = 0xFF,
+ /************************************************************************/
+ /* Payload format: */
+ /************************************************************************/
+
+ PT_LAST // NO-OP
+ };
+
+ class CEventPacket
+ {
+ public:
+ CEventPacket() = default;
+
+ explicit CEventPacket(int datasize, const void* data) { Parse(datasize, data); }
+
+ virtual ~CEventPacket() = default;
+ virtual bool Parse(int datasize, const void *data);
+ bool IsValid() const { return m_bValid; }
+ PacketType Type() const { return m_eType; }
+ unsigned int Size() const { return m_iTotalPackets; }
+ unsigned int Sequence() const { return m_iSeq; }
+ const uint8_t* Payload() const { return m_pPayload.data(); }
+ unsigned int PayloadSize() const { return m_pPayload.size(); }
+ unsigned int ClientToken() const { return m_iClientToken; }
+ void SetPayload(std::vector<uint8_t> payload);
+
+ protected:
+ bool m_bValid{false};
+ unsigned int m_iSeq{0};
+ unsigned int m_iTotalPackets{0};
+ unsigned char m_header[32];
+ std::vector<uint8_t> m_pPayload;
+ unsigned int m_iClientToken{0};
+ unsigned char m_cMajVer{'0'};
+ unsigned char m_cMinVer{'0'};
+ PacketType m_eType{PT_LAST};
+ };
+
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 09:57:36 +0000