179 lines
6.4 KiB
C
179 lines
6.4 KiB
C
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//-----------------------------------------------------------------------------
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// (c) 2006 by Basler Vision Technologies
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// Section: Vision Components
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// Project: GenApi
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// Author: Fritz Dierks
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// $Header$
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//
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// License: This file is published under the license of the EMVA GenICam Standard Group.
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// A text file describing the legal terms is included in your installation as 'GenICam_license.pdf'.
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// If for some reason you are missing this file please contact the EMVA or visit the website
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// (http://www.genicam.org) for a full copy.
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//
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// THIS SOFTWARE IS PROVIDED BY THE EMVA GENICAM STANDARD GROUP "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE EMVA GENICAM STANDARD GROUP
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// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//-----------------------------------------------------------------------------
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/**
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\file
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\brief Declaration of the CEventAdapterGEV class.
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*/
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#ifndef GENAPI_EVENTADAPTERGEV_H
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#define GENAPI_EVENTADAPTERGEV_H
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#include <GenApi/EventAdapter.h>
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namespace GENAPI_NAMESPACE
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{
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/* ------------------------------------------- */
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// Declaration of GigE Vision Event message structures
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// some useful macros
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#if defined( _MSC_VER )
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#define PACK_STRUCT
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#elif defined (__GNUC__)
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// While gcc-4 understands #pragma pack,
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// gcc-3 does not
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#define PACK_STRUCT __attribute__((packed))
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#else
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# error Unknown platform
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#endif
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// make sure everything is properly packed
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#pragma pack(push, 1)
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//! header of a GVCP request packet
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typedef struct PACK_STRUCT GVCP_REQUEST_HEADER
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{
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uint8_t Magic;
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uint8_t Flags;
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uint16_t Command;
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uint16_t Length;
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uint16_t ReqId;
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} GVCP_REQUEST_HEADER;
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//! layout of a GVCP event item (common to all types)
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typedef struct PACK_STRUCT GVCP_EVENT_ITEM_BASIC
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{
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uint16_t ReservedOrEventSize;
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uint16_t EventId;
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} GVCP_EVENT_ITEM_BASIC;
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//! layout of a GVCP event item (Extended ID flag not set)
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typedef struct PACK_STRUCT GVCP_EVENT_ITEM
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{
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uint16_t ReservedOrEventSize;
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uint16_t EventId;
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uint16_t StreamChannelId;
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uint16_t BlockId;
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uint32_t TimestampHigh;
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uint32_t TimestampLow;
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} GVCP_EVENT_ITEM;
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//! Layout of a GVCP event request packet (Extended ID flag not set)
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typedef struct PACK_STRUCT GVCP_EVENT_REQUEST
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{
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GVCP_REQUEST_HEADER Header;
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GVCP_EVENT_ITEM Items[ 1 ];
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} GVCP_EVENT_REQUEST;
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//! Layout of a GVCP event data request packet (Extended ID flag not set)
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typedef struct PACK_STRUCT GVCP_EVENTDATA_REQUEST
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{
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GVCP_REQUEST_HEADER Header;
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GVCP_EVENT_ITEM Event;
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uint32_t Data[ 1 ];
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} GVCP_EVENTDATA_REQUEST;
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//! layout of a GVCP event item (Extended ID flag set)
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typedef struct PACK_STRUCT GVCP_EVENT_ITEM_EXTENDED_ID
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{
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uint16_t ReservedOrEventSize;
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uint16_t EventId;
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uint16_t StreamChannelId;
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uint16_t BlockId;
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uint32_t BlockId64High;
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uint32_t BlockId64Low;
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uint32_t TimestampHigh;
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uint32_t TimestampLow;
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} GVCP_EVENT_ITEM_EXTENDED_ID;
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//! Layout of a GVCP event request packet (Extended ID flag set)
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typedef struct PACK_STRUCT GVCP_EVENT_REQUEST_EXTENDED_ID
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{
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GVCP_REQUEST_HEADER Header;
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GVCP_EVENT_ITEM_EXTENDED_ID Items[ 1 ];
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} GVCP_EVENT_REQUEST_EXTENDED_ID;
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//! Layout of a GVCP event data request packet (Extended ID flag set)
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typedef struct PACK_STRUCT GVCP_EVENTDATA_REQUEST_EXTENDED_ID
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{
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GVCP_REQUEST_HEADER Header;
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GVCP_EVENT_ITEM_EXTENDED_ID Event;
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uint32_t Data[ 1 ];
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} GVCP_EVENTDATA_REQUEST_EXTENDED_ID;
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const uint8_t COMMAND_MAGIC = 0x42;
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typedef enum GVCP_MESSAGE_TAGS
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{
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TAG_EVENT_CMD = 0xc0,
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TAG_EVENTDATA_CMD = 0xc2
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} GVCP_MESSAGE_TAGS;
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// restore the previous packing
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#pragma pack(pop)
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/* ------------------------------------------- */
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//! Connects a GigE Event to a node map
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class GENAPI_DECL CEventAdapterGEV : public CEventAdapter
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{
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public:
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//! Constructor
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CEventAdapterGEV(INodeMap* pNodeMap = NULL);
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//! Destructor
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virtual ~CEventAdapterGEV();
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virtual void DeliverMessage( const uint8_t msg[], uint32_t numBytes );
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//! Delivers the Events listed in the Event packet (Extended ID flag not set)
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void DeliverEventMessage(const GVCP_EVENT_REQUEST *pEvent);
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//! Delivers the Event + Data listed in the EventData packet (Extended ID flag not set)
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void DeliverEventMessage(const GVCP_EVENTDATA_REQUEST *pEventData);
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//! Delivers the Events listed in the Event packet (Extended ID flag set)
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void DeliverEventMessage(const GVCP_EVENT_REQUEST_EXTENDED_ID *pEvent);
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//! Delivers the Event + Data listed in the EventData packet (Extended ID flag set)
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void DeliverEventMessage(const GVCP_EVENTDATA_REQUEST_EXTENDED_ID *pEventData);
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private:
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void DeliverEventItem(const GVCP_EVENT_ITEM_BASIC *pItem, unsigned int length);
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/*
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The code for handling event messages and attaching event items to the EventPort
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is the same for events with and without extended ID.
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Only the datatype differs, so we keep the implementation in these templates
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*/
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template<typename EVT_REQ_TYPE> void DeliverEventMessageImpl(const EVT_REQ_TYPE *pEvent);
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template<typename EVT_REQ_TYPE> void DeliverEventDataMessageImpl(const EVT_REQ_TYPE *pEvent);
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void AttachItemToPorts(const uint8_t *pItem, uint16_t event_id, unsigned int length);
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};
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}
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#endif // GENAPI_EVENTADAPTERGEV_H
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