98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
#ifndef SBGBUFFER_H
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#define SBGBUFFER_H
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#include "sbgerrorcodes.h"
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#include <QByteArray>
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namespace sbgtc
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{
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#define SBG_ECOM_MAX_BUFFER_SIZE (4096) /*!< Maximum reception buffer size in bytes. */
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#define SBG_ECOM_MAX_PAYLOAD_SIZE (4086) /*!< Maximum payload size in bytes. */
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#define SBG_ECOM_SYNC_1 (0xFF) /*!< First synchronization char of the frame. */
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#define SBG_ECOM_SYNC_2 (0x5A) /*!< Second synchronization char of the frame. */
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#define SBG_ECOM_ETX (0x33) /*!< End of frame byte. */
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/*!
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* Windows x86 & x64 support both aligned and unaligned access
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*/
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#define SBG_CONFIG_UNALIGNED_ACCESS_AUTH (0)
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/*!
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* Windows is using little endianess
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*/
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#define SBG_CONFIG_BIG_ENDIAN (0)
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/*!
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* Union that allows type punning (access to a floating point number bits)
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*/
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typedef union _FloatNint
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{
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float valF;
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int32_t valI;
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uint32_t valU;
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} FloatNint;
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/*!
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* Union that allows type punning (access to a double number bits)
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*/
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typedef union _DoubleNint
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{
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double valF;
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uint64_t valU;
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int64_t valI;
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} DoubleNint;
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typedef struct _rawBuffer
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{
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uint8_t * rxBuffer;
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size_t rxBufferSize;
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}rawBuffer;
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typedef struct _SbgStreamBuffer
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{
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//SbgSBMode modes; /*!< Defines the stream buffer modes (read/write). */
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size_t bufferSize; /*!< Size in bytes of the linked buffer. */
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uint8_t *pBufferPtr; /*!< Pointer to the buffer linked with this stream. */
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uint8_t *pCurrentPtr; /*!< Current pointer within the buffer. */
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SbgErrorCode errorCode; /*!< Current error code on stream buffer. */
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} SbgStreamBuffer;
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typedef enum _SbgSBSeekOrigin
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{
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SB_SEEK_SET, /*!< The offset is referenced to the begining of the stream. */
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SB_SEEK_CUR_INC, /*!< The offset is referenced to the current cursor position and increment the current cursor. */
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SB_SEEK_CUR_DEC, /*!< The offset is referenced to the current cursor position and decrement the current cursor. */
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SB_SEEK_END /*!< The offset is referenced to the end of the stream. */
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} SbgSBSeekOrigin;
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rawBuffer initRawBuffer(QByteArray * sbgMessage);
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SbgErrorCode sbgStreamBufferInitForRead(SbgStreamBuffer *pHandle, const void *pLinkedBuffer, size_t bufferSize);
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SbgErrorCode sbgStreamBufferSeek(SbgStreamBuffer *pHandle, size_t offset, SbgSBSeekOrigin origin);
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size_t sbgStreamBufferTell(SbgStreamBuffer *pHandle);
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void *sbgStreamBufferGetCursor(SbgStreamBuffer *pHandle);
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size_t sbgStreamBufferGetSize(SbgStreamBuffer *pHandle);
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size_t sbgStreamBufferGetLength(SbgStreamBuffer *pHandle);
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size_t sbgStreamBufferGetSpace(SbgStreamBuffer *pHandle);
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void *sbgStreamBufferGetLinkedBuffer(SbgStreamBuffer *pHandle);
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uint8_t sbgStreamBufferReadUint8LE(SbgStreamBuffer *pHandle);
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uint16_t sbgStreamBufferReadUint16LE(SbgStreamBuffer *pHandle);
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uint32_t sbgStreamBufferReadUint32LE(SbgStreamBuffer *pHandle);
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uint64_t sbgStreamBufferReadUint64LE(SbgStreamBuffer *pHandle);
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int8_t sbgStreamBufferReadInt8LE(SbgStreamBuffer *pHandle);
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int32_t sbgStreamBufferReadInt32LE(SbgStreamBuffer *pHandle);
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float sbgStreamBufferReadFloatLE(SbgStreamBuffer *pHandle);
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double sbgStreamBufferReadDoubleLE(SbgStreamBuffer *pHandle);
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SbgErrorCode sbgStreamBufferGetLastError(SbgStreamBuffer *pHandle);
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}
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#endif // SBGBUFFER_H
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