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94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/***********************************************************************
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* pc_api_internal.h
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*
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* Signatures we need to share within the library, but not for
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* use outside it.
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*
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* Portions Copyright (c) 2012, OpenGeo
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*
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***********************************************************************/
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#ifndef _PC_API_INTERNAL_H
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#define _PC_API_INTERNAL_H
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#include "pc_api.h"
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/**
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* Utility defines
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*/
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#define PC_TRUE 1
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#define PC_FALSE 0
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#define PC_SUCCESS 1
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#define PC_FAILURE 0
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/**
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* How many compression types do we support?
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*/
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#define PCCOMPRESSIONTYPES 2
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#define PCPATCH_DEFAULT_MAXPOINTS 64
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/**
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* Interpretation types for our dimension descriptions
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*/
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#define NUM_INTERPRETATIONS 11
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enum INTERPRETATIONS
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{
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PC_UNKNOWN = 0,
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PC_INT8 = 1, PC_UINT8 = 2,
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PC_INT16 = 3, PC_UINT16 = 4,
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PC_INT32 = 5, PC_UINT32 = 6,
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PC_INT64 = 7, PC_UINT64 = 8,
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PC_DOUBLE = 9, PC_FLOAT = 10
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};
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static char *INTERPRETATION_STRINGS[NUM_INTERPRETATIONS] =
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{
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"unknown",
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"int8_t", "uint8_t",
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"int16_t", "uint16_t",
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"int32_t", "uint32_t",
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"int64_t", "uint64_t",
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"double", "float"
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};
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static size_t INTERPRETATION_SIZES[NUM_INTERPRETATIONS] =
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{
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-1, /* PC_UNKNOWN */
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1, 1, /* PC_INT8, PC_UINT8, */
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2, 2, /* PC_INT16, PC_UINT16 */
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4, 4, /* PC_INT32, PC_UINT32 */
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8, 8, /* PC_INT64, PC_UINT64 */
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8, 4 /* PC_DOUBLE, PC_FLOAT */
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};
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/** Read interpretation type from buffer and cast to double */
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double pc_double_from_ptr(const uint8_t *ptr, uint32_t interpretation);
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/** Write value to buffer in the interpretation type */
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int pc_double_to_ptr(uint8_t *ptr, uint32_t interpretation, double val);
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/** Return number of bytes in a given interpretation */
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size_t pc_interpretation_size(uint32_t interp);
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/** True if there is a dimension of that name */
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int pc_schema_has_name(const PCSCHEMA *s, const char *name);
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/** Returns 1 for little (NDR) and 0 for big (XDR) */
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char machine_endian(void);
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/** Force a byte array into the machine endianness */
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uint8_t* bytes_flip_endian(const uint8_t *bytebuf, const PCSCHEMA *schema, uint32_t npoints);
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/** Read a hex string into binary buffer */
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uint8_t* bytes_from_hexbytes(const char *hexbuf, size_t hexsize);
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/** Turn a binary buffer into a hex string */
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char* hexbytes_from_bytes(const uint8_t *bytebuf, size_t bytesize);
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/** Copy a string within the global memory management context */
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char* pcstrdup(const char *str);
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#endif /* _PC_API_INTERNAL_H */ |